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The 3rd International Conference on Sustainability and Innovation (ICoSI 2019)

Event starts on 2019.07.30 for 2 days in Yogyakarta

http://icosi.umy.ac.id | https://ifory.id/conf-abstract/VtN7hkMnz

Page 3 (data 61 to 90 of 1365) | Displayed ini 30 data/page

Analysis Dimension Of Spillway Toward Velocity Distribution And Flow Discharge For Effectiveness Of Kedurus Boezem
Anna Amalia Misdanik, S.T. (a*), Dr. techn. Umboro Lasminto, S.T., M.Sc. (b)

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Corresponding Author
Anna Amalia Misdanik

Institutions
a) Civil Engineering Department, Faculty of Civil, Environmental and Geo Engineering, Sepuluh Nopember Institute of Technology, Surabaya, Indonesia
*annaamaliam[at]gmail.com
b) Civil Engineering Department, Faculty of Civil, Environmental and Geo Engineering, Sepuluh Nopember Institute of Technology, Surabaya, Indonesia

Abstract
Residential area around Kedurus Boezem is often inundated when rains even though topographically the water in this area can flow to boezem. One part contained in a boezem is a spillway that is a lateral structure which functions to connect rivers with boezem area. The existing spillway must be able to increase effectiveness of boezem. Determination of spillway type must consider the geological, topographic, etc. In spillway there is a threshold that is used as a building to raise the water level and determine the water flow rate. Therefore, the selection of the dimensions of the spillway can affect the flow velocity distribution and the flow rate distribution which affects effectiveness of boezem. The research uses two DEM (Digital Elevation Model) data, they are existing DEM and DEM data which is assume the boezem is in full bank condition. Every DEM data simulation is performed using variations in the threshold (A) dimension. The simulation is carried out using HEC-RAS by modeling boezem and inundation area into 2D area so that velocity distribution (V) and flowrate (Q) can be analyzed. At the end of this simulation analysis was carried out to choose the best spillway dimension in effectiveness of Kedurus Boezem.

Keywords
Boezem; Spillway; Flow velocity; Flow rate

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/jpPcT4f7xbqF


Analysis of Application Naive Bayes Algorithm and Decision Tree in Predicting Student Readiness in Facing National Exams
Hermanto (a*), Antonius Yadi Kuntoro (b*), Sumpena Suhandi (c*), Yuma Akbar (d*), Nirat (e*), Nugroho Febianto (f*), Sfenrianto (g*)

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Corresponding Author
Dedi Dwi Saputra

Institutions
a) Master of Computer Science Postgraduate Program, STMIK Nusa Mandiri, Jakarta Indonesia
*hermanto.hmt[at]bsi.ac.id
b) Master of Computer Science Postgraduate Program, STMIK Nusa Mandiri, Jakarta Indonesia
*antonius.aio[at]nusamandiri.ac.id
c) Master of Computer Science Postgraduate Program, STMIK Nusa Mandiri, Jakarta Indonesia
*sumpenasuhandi[at]gmail.com
d) Master of Computer Science Postgraduate Program, STMIK Nusa Mandiri, Jakarta Indonesia
*stikomcki[at]stikomcki.ac.id
e) Master of Computer Science Postgraduate Program, STMIK Nusa Mandiri, Jakarta Indonesia
*mrnirat[at]gmail.com
f) Master of Computer Science Postgraduate Program, STMIK Nusa Mandiri, Jakarta Indonesia
*irawanf81[at]gmail.com
g) Information System Management Department, BINUS Graduate Program - Master of Information Systems Management , Bina Nusantara University, Jakarta, Indonesia 11480
*sfenrianto[at]binus.edu

Abstract
Trial is the evaluation phase facing the National Examination indeed, readiness in the exam is very important to be done by students in grade 3, testing the practice of the final exam for students in grade 3 will take the national examination, namely, schools, teacher guidance, and counseling have important roles in providing services to students. Trial services prior to student national exams require special professional handling, because they involve the success of students in national examinations. Errors in determining the readiness of students for national examinations can be a negative influence on the process and results of the students National Examination itself. After comparison of the Naive Bayes algorithm and the Decision Tree, the prediction results are predicted to predict the readiness of students to face the national exam. It is proven that the naive bayes algorithm has an accuracy value of 82.18% and the AUC value of -0.871 is included in the fair classification, while the Decision Tree algorithm has an accuracy of 73.45% and the AUC value of 0.696 belongs to poor classification. From these results it can be concluded that the naive bayes algorithm has a higher accuracy compared to the Decision Tree algorithm, it can be seen the difference in accuracy between naive bayes while the difference between naive bayes and the Decision Tree is 8.73%. Thus the naive bayes algorithm can predict the readiness of students to face the national exam better.

Keywords
Student, National Examination, Naive Bayes, Decision Tree

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/9w2nGrmgHyXB


ANALYSIS OF CAISSON BEARING CAPACITY AND SETTLEMENT OF ABUTMENT IN LEMAH ABANG BRIDGE
Annisa Ramadhani(a*), Miftahul Fauziah(b), Muhammad Rifqi Abdurrozak (b)

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Corresponding Author
Annisa Ramadhani

Institutions
a) Student of Civil Engineering, Faculty of Civil Engineering and Planning, Islamic University of Indonesia, Jalan Kaliurang KM 14, Yogyakarta 55581, Indonesia
*rmdhninisa31[at]gmail.com
b) Lecturer of Civil Engineering, Faculty of Civil Engineering and Planning, Islamic University of Indonesia, Jalan Kaliurang KM 14, Yogyakarta 55581, Indonesia

Abstract
Selection of the type of support foundation should be taken accurately because the strength of the foundation as a support for the upper structure greatly influences the strength of building. Wherefore, analysis of foundation carrying capacity and settlement are indispensable. This research aims to determine support capacity by applying various methods and the value of settlement that occurs due to loading from upper structures.This research utilizes method, such as Skempton Method, Cooke dan Whitaker Method, Meyerhoff Method, Alpha Method, Lambdha Method and Betha Method. Its also employes Finite Element Method, namely Software Plaxis 2D V.8.6 as calculation and modelling tools, final results of the analysis could be compared with empirical and non-empirical methods. The object of this is Lemah Abang Bridge that located in Sleman Regency and Gunungkidul Regency frontier, Yogyakarta Province, with Well Foundation or Caisson foundation as the lower structure. The results show that the support capacity meets the requirements, such as : Skempton Method is 1693,701 kN; Cooke dan Whitaker Method 2695,063 kN; Meyerhoff Method is 2695,063 kN; Alpha Method is 632,374 kN; Lambdha Method is 1663,359 kN; Betha Method is 1579,751 kN and field data is sebesar 20570,876 kN. According to the research, the minimum value of Qu are obtained by using Meyerhoff Method and Betha Method. Furthermore, The value of settlement with empirical method is 2,5075 cm and the settlement with Software Plaxis 2D is 4,62 cm. Based on the results, further analysis are needed by using another empirical methods or other softwares, to get various results.

Keywords
Caisson foundation; Support Capacity; Plaxis 2D V.8.6

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/eMgW9CrnRpaU


Analysis of Calculation of Rental Charges for Hall, Mess/Dormitory and Classroom Assets at Surabaya IV Region Construction Service Centers
Ratri Ayu Rahmayanti (a*), Tri Joko Wahyu Adi (b), Hitapriya Suprayitno (b)

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Corresponding Author
Ratri Ayu Rahmayanti

Institutions
a) Students of Civil Engineering Department, Faculty of Civil, Environmental & Geo Engineering, Sepuluh Nopember Institute of Technology
Jalan Raya ITS, Surabaya 60111, Indonesia
*ratriayu.pu[at]gmail.com
b) Civil Engineering Department, Faculty of Civil, Environmental & Geo Engineering,
Sepuluh Nopember Institute of Technology, Surabaya

Abstract
The Surabaya IV Regional Construction Services Center (BJKW IV) is an Organizational Unit under the Ministry of Public Works and Public Housing. One of the main tasks is the management of Non-Tax State Revenues. BJKW IV Surabaya has the assets of the Hall, Mess/Dormitory and Classrooms which can be used for internal activities and leased to private institutions related to construction services. However, the rental rates of the above building assets that are still used Government Regulation Number 38 of 2012 cannot meet operational and maintenance needs. This study aims to establish the latest rental rates that are able to meet operational and maintenance needs. In this paper, the analysis of rental rate determination uses the method of Activity Based Costing (ABC). The results show that the tariff requirements to meet operational and maintenance requirements are as follows: Hall rental rates is 1.15 times the original rate, Mess/Dormitory Rooms rental rates is 2,75 times the original rates, Large Classes rental rate is 2,25 times the original rates and the Small Class Room rental rate is 1,85 times the original rate. Based on the results above, BJKW IV Surabaya needs to consider tariffs for commercialization to the private sector.

Keywords
Calculation of Rental Charges, Non-Tax State Revenues Building, Activity Based Costing(ABC)

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/uFRtyWMmVz4A


Analysis of Congestion Cost using Vissim 10 at Sentul Signalized Intersection, Yogyakarta
Noor Mahmudah (a*), Bayu Segara Anjasmoro (a), and Muchlisin (a)

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Corresponding Author
NOOR MAHMUDAH

Institutions
(a) Department of Civil Engineering,
Universitas Muhammadiyah Yogyakarta,
Jalan Brawijaya Bantul 55183, Indonesia
*noor.mahmudah[at]umy.ac.id

Abstract
The growth of population leads to high traffic volume on several urban road in Yogyakarta. Sentul signalized intersection is one of intersection in Yogyakarta that is very potential causing traffic congestion. Therefore, this study aims to analyse the performance of intersection with simulation using Vissim 10 and to estimate the congestion cost. The methods used in this study were traffic counting at intersection and modelling the traffic using Vissim 10. The results of study showed the performance of existing condition at intersection was very poor with level of service (LOS) F and average delay of 106.71 second per vehicle. In addition, the estimated congestion cost of intersection was 3,722,627 rupiah per hour. The solutions simulated using Vissim 10 were consisted of re-setting green time of the traffic light, road widening for each approach area, applying left turn on right (LTOR) for the west-arm of intersection, and removing on-street parking area The analysis results showed that intersection performance was increasing with LOS of E, average delay was 74.23 second per vehicle, and congestion cost became 1,876,757 rupiah per hour. Hence it is concluded that the alternative solutions in this study can be applied to reduce congestion cost at Sentul signalized intersection.

Keywords
Congestion cost, signalized intersection, Vissim, Sentul, Yogyakarta

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/n7fAqgchJaVF


ANALYSIS OF CONSISTENCY OF OPERATIONAL AND APPLICATION SYSTEMS RISK MANAGEMENT ON AKAD MUDHARABAH BANK SHARIA ACCORDING TO USHUL FIQIH
Febryan Kwarto, Asmiatun Nurhikmah

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Corresponding Author
Asmiatun Nurhikmah

Institutions
Mercu Buana University
Jl. Meruya Selatan No.1, RT.4/RW.1, Meruya Sel., Kembangan, Kota Jakarta Barat, Daerah Khusus Ibukota Jakarta 11650
Faculty of Economics and Business

Abstract
This study aims to determine the consistency of sharia operational systems and the application of risk management to Islamic bank mudharabah contracts according to ushul fiqh at the Bank Muamalat Indonesia Cipulir Branch Office. This research was conducted by conducting in-depth interviews (in-depth interviews) and using a qualitative descriptive approach. Data analysis used descriptive analysis in the form of describing and explaining data. The results of this study indicate that in its operation, Bank Muamalat Indonesia Cipulir Branch conducted mudharabah transactions on fund collection products with a profit sharing system. Customers who deposit their funds at Bank Muamalat Indonesia are guaranteed by the National Guarantor Board (LPS). Fund Guarantee by LPS is permissible according to the MUI fatwa, but contrary to the fatwa of the OKI Islamic organization, with a fatwa if the mudharabah contract is guaranteed, the contract is changed to qard (credit) and this cancels the contract and the profit received becomes riba dayn. Therefore, Bank Muamalat Indonesia is not consistent in carrying out mudharabah agreements. Then the division of revenue using the system of revenue sharing and losses will be borne by the bank (mudharib) this is contrary to the Sharia becauseit should bear the loss is Shahibul Maal, mudarib only suffer losses from time and energy unless mudarib do negligence in doing business. The application of risk management at Bank Muamalat Indonesia applies private principles, confidentiality and prudence in its operations which are supervised by the Sharia Supervisory Board.

Keywords
operational system; risk management; mudharabah contract

Topic
International Conference of Islamic Economic and Financial Inclusion

Link: https://ifory.id/abstract/ceGzUWTm724L


Analysis Of Creep Test Mixture Of Asphalt Concrete Using Flyash For Runway
Anwar Efendy (a*), Ir. Ervina Ahyudanari, M.E., Ph.D (a)

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Corresponding Author
Anwar Efendy

Institutions
(a) Institut Teknologi Sepuluh Nopember, Surabaya

Abstract
There are some factors that cause deformation on the runway, such as the pressure of repeated loads caused by large queues of aircraft. The aggregate available in nature has begun to decrease in amount caused considering that infrastructure development in Indonesia continues to increase. Therefore, new material innovations are needed to overcome this, such as the use of flyash as an artificial aggregate of geopolymers in concrete asphalt mixtures. This research was carried out in some tests including Marshall testing which intended to determine the characteristics of artificial aggregate pavement mixtures, using open gradations with specification BBA. Then testing the resistance to deformation (Creep) on the artificial gradation aggregate pavement mixture using the UTM30 Dynapave. Based on the characteristics of the Marshall test the optimum bitumen content value was obtained open gradations has OBC value of 6.1%. Results of Creep test obtained strain value is 7874,195 microstrain and stiffness value is 13,297 MPa with repetition of 3600 times. It can be concluded that the pavement mixture with open graded artificial aggregate (BBA) has the ability to resist deformation.

Keywords
Runway, artificial aggregate of geopolymer, Marshall test, Creep test.

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/vA3j7XQUedVJ


Analysis of CSR Implementation in Mining Company Based on The Impact of Social Environment in UP. PARNO Special Region of Yogyakarta
Bella Devi Sekar jati (a*), Rinasa Agistya Anugrah (b*), Ghifari Baskoro Aji (c)

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Corresponding Author
Bella Devi Sekar Jati

Institutions
a) Student of Master of Management, Faculty of Postgraduate Program, Universitas Muhammadiyah Yogyakarta
JalanBrawijayaTamantirtoKasihanBantul Yogyakarta 55183, Indonesia
*bellasekarjati60[at]gmail.com
b) Departement of Mechanical Engineering, Faculty of Vocational Program, Universitas Muhammadiyah Yogyakarta
JalanBrawijayaTamantirtoKasihanBantul Yogyakarta 55183, Indonesia
*rinasaanugrah[at]umy.ac.id
c) PT. Abisha Bumi Persada
Papua Barat

Abstract
There are negative impacts of social environmental impacts due to mining operations in UP. PARNO. There are some potential dangers if the social environmental impacts are not reduced and not treated properly so as to disrupt the activity of the society near the mining area. Therefore, as a responsibility of mining company in UP. PARNO, implementation of CSR (Corporate Social Responsibility) programs must be beneficial for the society and the company itself. Based on the test, this have been conducted on 48 respondents with the statement covering the implementation of CSR and the social environmental impacts received, it will have a positive impact or even a negative impact. This test is done from testing data of each questionnaire that is CSR implementation and social environmental impact. The analysis of Implementation of CSR that has been done according to the results of the study based on the respondents are valid and reliable. This means that CSR programs that have been done by UP. PARNO already running well according to its implementation.

Keywords
social environmental; CSR; negatif impact; respondents

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/xq6g2ACkyHuE


ANALYSIS OF FACTORS AFFECTING INTENTION OF ERP CLOUD ADOPTION IN SMEs
Agung Terminanto (a*) ; Achmad Nizar Hidayanto (b) ; Kristian Cahyo (c)

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Corresponding Author
Agung Terminanto

Institutions
a,b) Computer Science, Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia
* agung.terminanto[at]gmail.com
c) Industrial Engineering, Universitas Pancasila, Department of Engineering, Jakarta, Indonesia

Abstract
Industry 4.0 has changed the way of life, work and interact, creating new opportunities and challenges. One characteristic of Industry 4.0 is cloud computing. To deal with these challenges, SMEs need an application that can integrate and automate SME business processes. Cloud ERP applications can be one solution for SMEs because of the benefits that can be given such as providing information with fast response times, increasing interaction between parts of an organization, improving the management of goods ordering cycle, etc. This study aims to determine what factors influence intention adoption of Cloud ERP in SMEs using the Factor Analysis method. Determination of factors integrating the framework of TOE (Technology, Organization, Environment) and DOI (Diffusion On Innovation) which produces 17 research factors. The number of respondents is 95 SMEs. This study use extraction dan rotation phase with Varimax Method. The analysis of factors generating the value of Kaiser-Meyer Olkin (KMO) and Bartletts Test of 0.744. The results showed that there were 12 factors out of 17 factors that influenced the adoption of ERP Cloud in SMEs. With Factor Analysis, the 11 factors can be summarized into 3 main factors, namely the Companys Internal Factors (consisting of Management Support, Absorptive Capability, Employees Knowledge and Perceived Value); Supporting Factors (consisting of Size of Firm, Competitive Pressure, External Support, and Business Partners); and Technical Factors (consisting of Technical Know-How, Compatibility, Relative Advantage, and Observability).

Keywords
SMEs, Cloud ERP Adoption, TOE framework, DOI framework, Factor -Analysis.

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/ULqjE9aN4hPp


ANALYSIS OF FLAVONOID CONTENT IN MORINGA LEAVES COMES FROM SIGI BIROMARU, PALU, CENTRAL SULAWESI
Siti Nuryanti dan Heni Purwaningsih

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Corresponding Author
Siti Nur Aisyah

Institutions
Program Study of Education Chemistry of TeacherTraining and Education, Tadulako. Jl/ Soekarno-Hatta, Palu, Central Sulawesi, Indonesia
2) Yogyakarta Assessment Institute for Agriculture Technology

Abstract
Moringa is a multifunctional vegetable plant so that all parts of this Moringa plant can be used as a food source because it contains active compounds and complete nutrition. Moringa is widely used because it is beneficial to health. Many compounds in Moringa leaves are very beneficial for health, one of which is plavonoid compounds. An analysis of the flavonoid content in Moringa leaves has been analyzed. Analysis of flavonoid content was carried out by extracting Moringa leaves with 2% aquades-acetic acid solvent. The extract was analyzed qualitatively and quantitatively using a UV-Vis spectrophotometer. The results of the analysis showed a positive effect on flavonoids with 17.42 mg / 100 g samples

Keywords
Moringa leaves, 2% acetic acid, flavonoid content

Topic
International Conference on Sustainable Agriculture

Link: https://ifory.id/abstract/pHfKaxB3XVwt


Analysis of Flood Early Warning Time in The Jragung River System
Sri Puji Lestari (a), Dr. Ir. Istiarto, M. Eng, Ph.D (a), Prof. Dr. Ir. Bambang Triatmodjo (a)

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Corresponding Author
Sri Puji Lestari

Institutions
(a) Master in Engineering in Natural Disaster Management,
Engineering Faculty, Universitas Gadjah Mada, Indonesia

Abstract
The area of flood inundation in Demak Regency has reached 13000 Ha. One of the reason was the overflow of the Jragung River system (BBWS, 2010). This flood has caused direct losses (damaged and flooded paddy fields) and indirect losses (obstructed traffic due to flooded/interrupted roads). Structural flood mitigation efforts have been carried out on the Jragung River system through the Jragung River System Flood Control activities which include river normalization activities (river channel improvement), cliff elevation, and elevation of structural buildings that cross the river. However, non-structural control efforts need to be made to maximize mitigation efforts, for example through a flood early warning system. In this study, analysis of early warning time of the flood in the Jragung River system will be carried out in an effort to reduce losses and damage. The location in this study is the watershed of the Jragung River upstream system with the control points used in this study are Jragung Dam and Guntur Dam. This study includes hydrological modeling using HEC-HMS 4.2.1 software (Hydrologic Engineering Center - Hydrologic Modeling System) and hydraulic modeling using the HEC-RAS (Hydrologic Engineering Center-River Analysis System) software. The results of the analysis based on the 2, 5, 10, 20, 25, 50, 100, and 1000 years return period shows that the flood discharge Q50, Q100, and Q1000 has the potential to cause flooding in the lower reaches of the Jragung River system. Based on the results of the warning time analysis, for Q50 flood discharge, the maximum potential warning time (Twp) is 5.3 hours, the recognition time (Tr) is 2.4 hours, and the maximum mitigation time (Tw) is 2.9 hours. for Q100 flood discharge, the maximum warning time potential (Twp) is 5.8 hours, the recognition time (Tr) is 1.8 hours, and the maximum mitigation time (Tw) is 4 hours. Whereas for Q1000 flood discharge, the maximum potential warning time (Twp) is 8.7 hours, the recognition time (Tr) is 1.2 hours, and the maximum mitigation time (Tw) is 7.5 hours. All evacuation procedures can be carried out at the maximum mitigation time. The results of this study are expected to be an input for the government to provide flood early warning for communities along the Jragung River system, for example by installing flood alarms.

Keywords
Jargung River, the maximum potential warning time, the recognition time, the maximum mitigation time

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/Adz6EnfYhQRM


Analysis of Fuzzy TOPSIS Method in Determining Priority of Small Dams Construction
Desyta Ulfiana 1*, and Suharyanto 1

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Corresponding Author
Desyta Ulfiana

Institutions
1) Civil Engineering Department, Engineering Faculty, Diponegoro University, Semarang, Indonesia

Abstract
The limited of government budget for the small dams construction in Semarang Regency has led to the need for determining the construction priority. However, the large number of these constructions technical aspects causes the determination of construction priorities to be difficult. One of the best methods for multi-criteria decision making is the Technique for Order Performance by Similarity to Ideal Solution (TOPSIS). However, ranking and weighting the criteria that use in these constructions was difficult. It was due to human assessment factors that were less precise especially on linguistic variables criteria. Therefore, a fuzzy method was needed to numerating these criteria. There are eight alternatives of small dams and seven criteria of technical aspects analyzed in this study. The first was determining membership function and weighting each criteria. Then, the modified TOPSIS method was applied to rank the eight alternatives. The highest priority was determined by finding alternative that has the largest closeness coefficient (CCi). Its represent alternative with closest distance to fuzzy positive ideal solution and farthest distance to fuzzy negative ideal solution. Based on the results of the analysis, Mluweh Small Dams has the highest CCi value of 0,612. So, Mluweh small dams is the highest priority in the construction of small dams in Semarang Regency

Keywords
Fuzzy; TOPSIS; small dams; construction priority

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/2pnaPE3jJR6b


Analysis of Geunang Uyat Reservoir Capacity in West Aceh Regency as Effort to Overcome Water Lack During the Dry Season
Muhammad Ikhsan, Muhammad Arrie Rafshanjani Amin, Sudirman

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Corresponding Author
Muhammad Ikhsan

Institutions
Universitas Teuku Umar

Abstract
reservoir is one of the storage that has a function as water storage when excess water and can be used during the dry season. The collected water is usually used for downstream needs such as for irrigation water, clean water needs, can even be used to contain energy for power plants. The Geunang Uyat Reservoir is located in the District of Panton Reu, West Aceh Regency. built to overcome the shortage of clean water one of the most urgent is for irrigation water needs. The construction of the reservoir is expected to meet irrigation needs which can irrigate approximately 500 hectares in Meutulang Village. The method used is Ripple Curve to calculate the amount of adequate storage capacity at the level of certain water requirements. The need for irrigation water on agricultural land planned through the construction of reservoirs is expected to maximize agricultural production in the region, which so far is only a rainfed rice field. the data used in this study are secondary data from related institutions, such as rainfall data obtained from BMKG Cut Nyak dhien Nagan Raya Regency. From the results of data analysis, there are several results, namely the analysis of maximum rainfall occurred in 2006 in November amounting to 538 mm and the lowest in 2010 in July at 41 mm, from the mainstay discharge analysis obtained 0.032 ml. Based on the analysis, the cumulative value of the inflow of 2.682.868 m3 and the cumulative outflow of 1,575,443 m3 was obtained with a volume of storage at Geunang Uyat reservoir which was equal to 70. 708,245 m3

Keywords
Reservoir; Storage Capacity; Irrigation; Rippl Curve

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/kXqYaNBdtz3j


Analysis of Heavy Metal Content (As, Cd, Cr, Hg and Pb) in PM10 Ambient Air from Industrial Activities in Medan Industrial Estates
I Suryati, N Latifah, M Nasri Akbar

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Corresponding Author
Isra Suryati

Institutions
University of Sumatera Utara

Abstract
Particulate Matter 10 micron (PM10) is one of the primary pollutants in the form of dust measuring 10 microns in ambient air. PM10 comes from biogenic and anthropogenic sources. One anthropogenic source that contributes PM10 emissions is industrial activity. The presence of PM10 from industrial activities is not only in terms of concentration but also the heavy metal content of the PM10. Heavy metals have a harmful effect on human health. This study aims to analyze the content of heavy metals in PM10 sourced from industrial activities around the Medan Industrial Area. In addition, this objective also wants to determine the correlation between heavy metal content and industrial activity. Taking PM10 samples using HVAS (High Volume Air Sampler) equipment. Analysis of the content of heavy metals in PM10 was carried out by the ICP-AES (Inductively Couple Plasma Atomic Emission Spectroscopy). The sampling location was in Medan Indutrial Area as many as 3 locations. The results of laboratory tests showed PM10 concentration in front of PT. S was 305.5 micrograms / cubic meter; Mahmud Gang is 66.04 micrograms / cubic meter, and in front of PT. MM is 382 micrograms / cubic meter. Meanwhile, heavy metals content in PM10 was obtained for As of 0.82 - 0.94 micrograms / meter cubic; Cd of 1.42 - 1.62 micrograms / cubic meter; Cr of 0.06 - 0.07 micrograms / cubic meter; Hg of 0.52 - 0.68 micrograms / cubic meter and Pb of 0.29 - 0.33 micrograms / cubic meter Based on the correlation test between pollutant sources and metal content in Medan Industrial Area, the correlation between heavy metals As, Cd, Cr, Hg, and Pb with industry was positively correlated (r = 0.858 - 0.92). this shows that the presence of industry has an effect on heavy metal content in am ambient PM10 at Medan Industrial Area.

Keywords
heavy metal, ICP-AES, industry, PM10

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/Vm6cnfw83Cau


ANALYSIS OF INDONESIAN FOREIGN DIRECT INVESTMENT IN NIGERIA PERIOD OF 2014—2017: CASE STUDY PT. INDOFOOD SUKSES MAKMUR
Fitri Chaerunisa

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Corresponding Author
Fitri Chaerunisa

Institutions
International Relations Undergraduate Program, Faculty of Social and Political Science, Universitas Pembangunan Nasional “Veteran” Jakarta

Abstract
Liberalism in international trading opens the opportunity for countries anywhere to sell their products to the whole world. One of the activity that cannot be separated from international trading is Foreign Direct Investment (FDI). Nigeria is one of many countries which is really welcoming the concept of FDI. There are Indonesian corporations that has been investing in Nigeria, one of them is PT Indofood Sukses Makmur. With the Toleram Group from Singapore, that company has built a new corporation together, called De United Foods Industries Ltd (DUFIL). FDI concept and Product Life Cycle (PLC) theory are used in this research, along with the qualitative method and descriptive technique of data analysis. The result shows that PT Indofood Sukses Makmur (De United Foods Industries Ltd) is a company with horizontal FDI model. The company classified in greenfield FDI category, which developed with merger. According to PLC theory, instant noodle from PT Indofood Sukses Makmur which has been produced by De United Foods Industries Ltd in Nigeria is in the mature step.

Keywords
Foreign Direct Investment (FDI), Indonesia, Nigeria, Product Life Cycle (PLC), Indofood

Topic
International Conference of Islamic Economic and Financial Inclusion

Link: https://ifory.id/abstract/m8EfeBWgrP3h


Analysis of Infrastructure Deficiency at Black Spot Area (Case study in Jln. Mayjend. Sungkono, Blater, Kalimanah, Purbalingga)
Gito Sugiyanto (1*), Rizki Suciningtyas (1), Eva Wahyu Indriyati (1), Jajang (2), Mina Yumei Santi (3)

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Corresponding Author
Gito Sugiyanto

Institutions
1 Jenderal Soedirman University, Civil Engineering Department, Mayjend Sungkono Street km.5, Blater, Kalimanah, Purbalingga, Central Java, Indonesia
2 Jenderal Soedirman University, Department of Mathematic, Dr. Suparno Street, Karangwangkal, Purwokerto, Banyumas, Central Java, Indonesia
3 Health Polytechnic Ministry of Health of Yogyakarta, Mangkuyudan Street MJ III/304 Yogyakarta, Indonesia

Abstract
The deficiency of road infrastructure is a reduction or decrease in the function of road infrastructure resulting in inefficient functioning of road infrastructure. This can trigger potential traffic accidents. Traffic accident is one of the serious problems in road traffic. Road crash are not only caused by the condition of the vehicle and driver, but also due to many factors, including road design (horizontal alignments and vertical alignments), stop sight distance, road pavement condition, completeness of traffic signs or directions, and weather. The aim of this research was to analysis the road safety audit of infrastructure deficiency at black spot area in arterial road at Purbalingga. The study location was in Mayjend. Sungkono Street, Blater, Kalimanah, Purbalingga, Central Java, Indonesia. Three parameters that analyzed in road safety audit i.e.: condition of road geometric, condition of road pavement, and harmonization of road equipment facilities. The result of the study shows that some of road infrastructures must be repaired to reduce the potential traffic accident. Road geometric aspect involves the preceding sight distance and shoulder width. Aspect of road pavement condition involve lane or shoulder drop off. Harmonization of road equipment aspect involves speed limit sign (50 km/h and 40 km/h), warning sign along black spot location.

Keywords
Infrastructure deficiency; road safety audit; black spot; traffic safety

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/Mcd4qQ2PvTaE


Analysis of Inundation in East Surabaya
Aninda Rahmaningtyas, S.T. (a), Dr. techn. Umboro Lasminto, S.T., M.Sc.(b), Dr. Ir. Edijatno, DEA (b)

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Corresponding Author
Aninda Rahmaningtyas

Institutions
a) Student of Magister Program, Hydroinformatic, Civil Engineering Department, Sepuluh Nopember Institute of Technology
Raya ITS Street, Keputih, Sukolilo, Surabaya 60111, Indonesia
rahmaningtyas.aninda[at]gmail.com

b) Lecturer of Civil Engineering Department, Sepuluh Nopember Institute of Technology
Raya ITS Street, Keputih, Sukolilo, Surabaya 60111, Indonesia

Abstract
The eastern part of Surabaya is the low area which are often flooded during the rainy season. Rainflow in this area influenced by tides so that inundation will occur when it rains along with the sea in high tide conditions. To be able to mitigate these inundations it is necessary to know the potential areas of inundation caused by rain with various return periods. In this study a flood flow simulation with a combination of 1D and 2D was carried out using the HEC-RAS computer program. The simulation results show inundated areas so that information can be obtained on the depth, area and duration of the flooded area in the eastern part of Surabaya.

Keywords
Inundation; HEC-RAS; East Surabaya

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/MHBE39egJCUX


ANALYSIS OF ISLAMIC FINANCIAL INCLUSION FOR MSMEs IN YOGYAKARTA
Lilies Setiartiti, Susilo Nur Aji Cokro Darsono, Taufik Akbar Universitas Muhammadiyah Yogyakarta a)setiartiti.lilies1267@gmail.com

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Corresponding Author
Syadan Ismail

Institutions
Universitas Muhammadiyah Yogyakarta

Abstract
Abstract. Micro, small and medium enterprises (MSMEs) play a significant role in economic development in Yogyakarta. Based on 2016 census data, total number of businesses amounting to 246,217 business units, the number of MSMEs was 235,313 or 98.40% of the total businesses in Yogyakarta. Yogyakartas economic growth in 2017 was 5.26% (yoy), where the share of MSMEs was quite significant, around 95%. However, the big problems faced by the MSMEs are financial inclusion are still low. In view of this, there is a vacuum of information that demands a need to empirically investigate to what extent MSMEs has gained access to Islamic financial credit facilities and examine causes that lead to a such situation. The purpose of this research is to assess selected attributes of the MSMEs and analyze the causes of the low access to Islamic finance. Data obtained using survey techniques and in-depth observation to provide answers of the problems faced to explain the phenomenon. The results indicated that MSMEs access to Islamic finance is relatively low and only 30% at the beginning of their business using funds sourced from sharia financial institutions. This condition is an irony because of the rapid development of Islamic financial institutions, especially BMTs in Yogyakarta, and most business actors are micro and small scale, which should be served by sharia microfinance institutions. Overall, this research provides some important insights for Yogyakarta to highlight possible steps for the policy makers as a reference to formulate policies related to increasing financial access for MSMEs Keywords : MSMEs, financial inclusion, microfinance, sharia finance

Keywords
eywords : MSMEs, financial inclusion, microfinance, sharia finance

Topic
International Conference of Islamic Economic and Financial Inclusion

Link: https://ifory.id/abstract/9cmGwNyDuat3


ANALYSIS OF MIDWIFERY QUALITY SERVICE IN PRIMARY HEALTH CARE
Asti Nurhayati (1), Erna Rochmawati (2), Qurratul Aini (3)

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Corresponding Author
Asti Nurhayati

Institutions
Master of Hospital Management, Postgraduate Program, Universitas Muhammadiyah Yogyakarta
Brawijaya Street, Tamantirto, Kasihan, Bantul 55183, Yogyakarta, Indonesia
astynurhayati25[at]gmail.com (1)

School of Nursing, Master in Nursing Program, Universitas Muhammadiyah Yogyakarta
Brawijaya Street, Tamantirto, Kasihan, Bantul 55183, Yogyakarta, Indonesia (2)

Master of Hospital Management, Postgraduate Program, Universitas Muhammadiyah Yogyakarta
Brawijaya Street, Tamantirto, Kasihan, Bantul 55183, Yogyakarta, Indonesia (3)

Abstract
Background: Midwifery quality service is affect to quality satisfaction level and lead to a decreasing maternal mortality rate and infant mortality rate in Indonesia. Midwifery service is mostly delivered in primary health care. Therefor it is important to analyse the quality of midwifery service. Methode: A cross sectional survey, conducted in 6 primary health care and involved 75 respondents. Two questionaire were analyzed to measure perceptions of midwifery quality service and quality satisfaction level. Result: The results showed the quality of midwifery services affected the level of service satisfaction by 2.8%. The majority of respondents felt that the midwifery service they received was satisfying as many as 39 respondents (52%). But if viewed based on the frequency of service satisfaction levels, many respondents stated dissatisfaction (92%) in antenatal care. This is caused by communication factors between midwives and patients. Conclusion: Many respondents stated that communication by midwives was still poor. This can be seen from the many respondents who gave an not qualified response to item reliability on the variable quality of midwifery services. Keywords: Antenatal care, Intranatal care, Level of patient satisfaction, Postnatal care, Neonatal care, Quality of midwifery services.

Keywords
Antenatal care, Intranatal care, Level of patient satisfaction, Postnatal care, Quality of midwifery services

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/k3nJKxaqmpHz


Analysis of Online Learning Platform Technology Acceptance in Indonesia Using Unified Theory of Acceptance and Use of Technology 2 (UTAUT2)
Yuda Dian Harja (a), Mohammad Isa Irawan (b), Rita Ambarwati (c)

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Corresponding Author
Yuda Dian Harja

Institutions
a) Department of Information Technology Management, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, Indonesia
b) Department of Mathematics, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, Indonesia
c) Faculty of Economics and Business, Universitas Muhammadiyah Sidoarjo, Sidoarjo, Indonesia

Abstract
One of the main stages to achieve the success of the Online Learning Platform technology is the acceptance of the technology by its users. Therefore, identifying the factors that influence the success of technology acceptance is very important. This study aims to identify the usefulness of technology in the Online Learning Platform. This study uses the Unified Theory of Acceptance and Use of Technology (UTAUT2) approach which has been modified to analyze the factors of acceptance of Online Learning Platform technology. In addition, the Partial Least Square Structural Equation Modeling (PLS-SEM) method was used to test the hypothesis of the research conducted. The expected results of this study are to obtain the most influential factors in the acceptance of the Online Learning Platform technology, to be used later by providers of Online Learning Platform technology as a reference in making strategic decisions for further development.

Keywords
UTAUT2, PLS-SEM, Technology Acceptance, Online Learning

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/wQWK7jqcRUhg


ANALYSIS OF OPERATION PATTERN OF THE BAJULMATI RESERVOIR
Erlin Susanti (a*), Umboro Lasminto (b), Theresia Sri Sidharti (b)

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Corresponding Author
Erlin Susanti

Institutions
a) Students of Department Civil Engineering Faculty of Civil, Environmental & Geo Engineering, Sepuluh Nopember Institute of Technology
Jalan Raya ITS, Surabaya 60111,Indonesia
*susantierlin80[at]gmail.com
b) Department Civil Engineering, Faculty of Civil, Environmental & Geo Engineering, Sepuluh Nopember Institute 0f Technology, Surabaya

Abstract
The reservoir is a water resource facility that has a function as a storage and water provider. The abundant water in the rainy season is accommodated, stored and used appropriately throughout the year. The fact that is happening now as time goes by is that many reservoirs in Indonesia have decreased function and performance. One of them occurs in the Bajulmati Reservoir. This study aims to analyze the Operating Pattern of Bajulmati Reservoir so that the reservoir is expected to provide optimal performance in utilization for irrigation, raw water,and Micro Hydro Power Plants. This research was conducted by forming a model with Dynamic Programming and simulation. The first simulation was carried out according to the operation of the current reservoir, which is prioritized for irrigation (factor kT=100%), irrigation water is passed through a turbine (PLTMH). In the second, the reservoir was operated with the fulfillment of irrigation and raw water, a factor of kT&

Keywords
Reservoir, optimization, dynamic programming

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/RCcBQkT7VdLW


ANALYSIS OF OYSTER MUSHROOM FARMING IN THE HIGHLAND (Case Study in Sleman and Temanggung Regencies)
Nur Rahmawati (a*), Marbudi (a), Heri Ahmadi (a)

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Corresponding Author
Nur Rahmawati

Institutions
(a) Agribusiness Department,
Universitas Muhammadiyah Yogyakarta,
Indonesia
* rahma_wati_mf[at]umy.ac.id

Abstract
This study aims to analyze the characteristics, costs, benefits and feasibility of oyster mushroom farming in the highlands. Location determination is done purposively because the two districts are in the highlands. Taking respondents using snow ball method as many as 32 respondents. The analysis used is descriptive and t-test to test for differences in average costs, profits and BC ratio. The results showed that there were differences in the characteristics of the application of input and process technology for Oyster Mushroom farming in Temanggung Regency and Sleman Regency. Based on the t test, this condition also causes differences in profits and feasibility of oyster mushroom farming, but there is no difference in the costs incurred. The value of profit and feasibility of oyster mushroom farming in Temanggung Regency is higher than in Sleman Regency. But the cost of oyster mushroom farming in Sleman Regency is relatively the same as the cost of oyster mushroom farming in Temanggung Regency. There needs to be an increase in the potential of oyster mushroom farmers in Sleman regency and strengthening the potential of oyster mushroom farmers in Temanggung Regency so that the quality and productivity of oyster mushrooms in both districts is stable and increasing so that it will have an impact on farmers income and profits

Keywords
Oyster mushroom, characteristics, profits,BC ratio

Topic
International Conference of Islamic Economic and Financial Inclusion

Link: https://ifory.id/abstract/7YDNFZ8JMBXR


Analysis of Position and Role of Baitul Maal Wa Tamwil in the Empowerment of Peoples Economy
Uus Ahmad Husaeni and Tini Kusmayati Dewi

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Corresponding Author
Uus Ahmad Husaeni

Institutions
Faculty of Islamic Economic and Business, Suryakancana University

Abstract
This research is motivated by the fundamental changes in micro finance industry map caused by the many penetration done by big players (rich people), so Baitul Maal Wa Tamwil (BMT) position began to lose its identity and must be transformed to face competition in micro finance sector. The purpose of this study is to prove the total change of microfinance business and analyze the position and role of BMT in the economic empowerment of people. This research is qualitative with library approach, where primary data are collected from primary sources in the form of related literature and secondary data in the form of publication report and interview. The data are then presented and analyzed by descriptive-analytical method using SWOT approach. The main conclusion of this research is that there has been a commercialization of microfinance business in Indonesia, so that BMT who carry out the mission of economic empowerment of people should focus on choosing the role as well as transform themselves. The transformation is done by changing its role and position to two alternatives; commercial or social, which is then supported by good corporate governance. This study is in line with the research of Marguerite S. Robinson (2002), Lincolin Arsyad (2008), and Ummer Chapra (2012) which outlines the financial ratios and healthy capital composition to support good performance. On the contrary, this study differs from Awalil Rizkys (2007) research which highlights the Islamic girah as a prospect, Euis Amalias research (2009) which emphasizes the need for regulatory and government policies in order to empower Small and Medium Micro Enterprises (MSMEs)

Keywords
BMT; Economic Empowerment; Micro Finance; and SMEs

Topic
International Conference of Islamic Economic and Financial Inclusion

Link: https://ifory.id/abstract/aKMN6etFc7Q2


Analysis of Public Interest in Using Financial Service Providers Among Sharia Banks or Financial Technology Companies
Hidayat Wira Kusuma (a*), Dedi Wibowo

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Corresponding Author
Hidayat Wira Kusuma

Institutions
Universitas Indonesia

Abstract
Despite the high growth, Islamic banking market share in Indonesia of less than six percent is very small compared to the assets of conventional banks. Given that majority of Indonesia population adheres to Islam, this finding indicates inconsistency in previous researches which found religiosity was the main factor that encouraged customers to patronize Islamic banking services. Many studies have found that there are several factors proposed by customers in banking selection. In addition to religiosity, service quality has a significat influence to the customers decision as well. In this digital era, information technology has changed the financial business model. Digitalization enforces the transformation of financial services to manage the changes in consumer behavior. Furthermore, digitalization has aroused disruption in the financial industry with the emergence of financial technology companies. Using Structural Equation Modelling, this study will examine the relationship between the emergence of fintech companies and the slowdown in the growth of Islamic bank market in Indonesia. This research develops a framework that combines SERVQUAL model, UTAUT2 model and religiosity as factors that drive customers decision in choosing the type of financial service provider. The results of this study are expected to help financial industry players, especially Islamic banks and Islamic fintech companies, to redefine the strategy needed to compete in digital era.

Keywords
Islamic Bank, Financial Technology (FinTech), SERVQUAL, UTAUT2, Religiosity

Topic
International Conference on Islamic Studies in the Digital Era

Link: https://ifory.id/abstract/3tDZRB4puj6T


ANALYSIS OF SOCIAL INFLUENCE ROLE IN FORMING BRAND EQUITY AND INTEREST TO BUY SMARTPHONE PRODUCTS IN INDONESIA
Moch Amin Nurdin

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Corresponding Author
Moch Amin Nurdin

Institutions
LPPI

Abstract
In this recent telecommunication business competition, companies are competing for the customer attention. The company is trying to create more attractive gadgets, more sophisticated and more innovative features. Smart-phone is one of the most sought after gadgets by the people of Indonesia, especially in the capital, where most of them are using the gadgets for their business activities. This Thesis took 4 sample of smart-phone product as an object of the research, they are Blackberry, Samsung, Apple and HTC. The research problem submitted is to know the role of social influence in shaping brand equity and purchase intention of smart-phone, based on this basic is submitted theoretical model with 3 hypotheses to be tested by Structural Equation Model. This research samples are 174 respondents who use smart-phone in Indonesia. The analysis result of Structural Equation Model fulfills the criteria of goodness of fit index where X2 (chi-square) = 129.725, significance probability = 0.134 ( &

Keywords
Social Influence, Brand Equity and Purchase Intention

Topic
International Symposium on Social Sciences, Humanities, Education, and Religious Studies

Link: https://ifory.id/abstract/CDh7V2FTZzRf


Analysis of Social Media Addiction and Feel of Being Bullied Status among Millennial Generation and iGeneration in Indonesia Population
Ricky Indra Alfaray(1), Yusuf Ibrahim(1), Rafiqy Sa-adiy Faizun(2), Laily Irfana(3)

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Corresponding Author
Ricky Indra Alfaray

Institutions
(1)Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
(2)Faculty of Medicine, Universitas Sriwijaya, Palembang, Indonesia
(3)Faculty of Medicine, Universitas Muhammadiyah Surabaya, Indonesia

Abstract
Indonesia is the fourth most populous country in the world, with approximately 50% of the population classified as Millennial Generation and iGeneration which characteristically close to technology such as social media. Social media has many positive impacts on youth, but their negative impact such as addiction and bullying cannot be denied. This problem is, unfortunately, has not been much researched yet in Indonesia. We wanted to identify the correlation between social media addiction and feeling of being bullied in the two youngest generations in Indonesia. We conducted a nation-wide observational analytic study with a cross-sectional design. A total of 1403 Millennial Generation and iGeneration respondents were collected using purposive sampling. The online questionnaire was designed to collect comprehensive information about the variables studied which are participant-s demographic status, social media addiction status, and feel of being bullied. We found a significant correlation between social media addiction status and feel of being bullied (p=0.000). This may indicate that social media addiction is a factor related to bullying in the Millennial Generation and iGeneration. These results will provide information on the development of relevant education and information system to enhance awareness about social media addiction and bullying cases.

Keywords
Social media addiction; feel of being bullied status; Millennial Generation; iGeneration

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/gyF8Kj4tmEpa


Analysis of Special Housing Provisions- Success Factors
Maria Handayani Setyaningrum (a*), Ign. Sriyana (b), Bambang Purwanggono (c)

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Corresponding Author
Maria Handayani Setyaningrum

Institutions
a) Master Program Civil Engineering, Diponegoro University,
Jl. Prof Sudharto, SH. Tembalang Semarang 50275
*setyaningrum.mh[at]gmail.com
b) Civil Engineering Dept. Diponegoro University
c) Industrial Engineering Dept. Diponegoro University

Abstract
The government issued various national programs to assist low-income communities in order to obtain decent housing. The provision of housing for low-income communities is accommodated by the Directorate General of Housing Provision, one of which is through the Special Housing provisions-, conducted by the Directorate of Special Housing. This study analyzes simultaneously the success factors using Structural Equation Modeling (SEM) modelling to see empirically the influence of each factor on the success of special housing provision as an evaluation for policy makers to monitor the implementation of future special housing provisons- policies. The test results obtained that the accepted hypothesis is that land availability influences the factors of cooperation among stakeholders, the cooperation among stakeholders influences the number of special housing built, and the political will affects the budget factor. The main performance indicator of special housing provisions- is the number of special housing built, meaning that cooperation among stakeholders influences the successful of this program. Special housing programs really require commitment and active role of all stakeholders involved in special housing provisions- for the effective policy goals achievement. The higher the collaboration between stakeholders with all the forming indicators carried out, will be directly proportional to the success of a special housing provisions program.

Keywords
Special Housing Provisions-; Success Factors; SEM

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/2UMdJaZctfYP


Analysis of Stiffness Modulus of Concrete Asphalt Mixture Using Artificial Aggregates Geopolymer
Gusti Made Bagus Baskara (a*), Ervina Ahyudanari (a)

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Corresponding Author
Gusti Made Bagus Baskara

Institutions
a)Transportation Engineering, Surabaya Institute of Technology
jalan Raya ITS, Surabaya 60111, Indonesia
*gstbagus32[at]gmail.com

Abstract
The type of damage to the pavement layer is cracking and permanent deformation. The mechanism of cracking in the pavement layer occurs because of the tensile force at the bottom of the pavement layer due to the wheel load of the vehicle. One parameter of a mixture to achieve strength and durability as needed is the relationship of stress and strain which shows the stiffness of a mixture. Indirect Tensile Strength is a method used to show the stiffness of a mixture. As infrastructure development in Indonesia continues to increase, the availability of natural aggregate materials is decreases. One of the uses of geopolymer can be used as artificial aggregates to replace the depleted natural aggregates. The purpose of this study was to review the stiffness modulus of concrete asphalt mixture with the use of artificial aggregates made from geopolymer by using open gradations of BBA (Beton Bitumineux pour chausees Aeronautiques). From the test results using the Dynapave UTM30 tool at 20 degrees Celcius and 60 degrees Celcius, the mixture of stiffness modulus values is 3223 MPa and 129 MPa.

Keywords
Artificial aggregates, Fly ash, Geopolymer, Stiffness Modulus, Runway pavement.

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/GzB8Da3g24bw


ANALYSIS OF THE EFFECT OF SEA LEVEL RISE IN THE LAMONG BAY DUE TO GLOBAL WARMING ON THE SURABAYA DRAINAGE
Dr. techn. Umboro Lasminto, ST., M.Sc.

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Corresponding Author
Rezky Susmono Karuru

Institutions
Civil Engineering, Institut Teknologi Sepuluh Nopember
Jalan Arief Rahman Hakim, Surabaya 60111

Abstract
The West Surabaya area, especially in the lower reaches of Tandes Rayon, has a high level of inundation risk due to several factors, one of which is the influence of sea level rise. Therefore a puddle map is needed which is one of the efforts to minimize the impact of inundation that occurs in the downstream area of Tandes Rayon by using scenario condition, namely inundation scenarios for the downstream condition of Rayon Tandes, and inundation scenario in the event of sea level changes to the global warming. Hydrological data processing can use HEC-HMS software and for hydraulic data processing requires primary channel profile data and can be processed in HEC-RAS 1D. Inundation map modeling in the Lamong bay area uses 2D HEC-RAS which is used to determine flood-prone locations caused by sea level rise in simulated scenarios. The results of this analysis a map of the inundation location that is prone to flooding in the Tandes Rayon area can be obtained and can be used for flood warnings and mitigation. From the inundation map that is produced, it can be seen the inundation area, the height of inundation that occurs, and the length of inundation time.

Keywords
Inundation; Global Warming; Sea Level Rise; Surabaya; HEC-RAS.

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/jNHnZhzTRLqJ


ANALYSIS OF THE FEASIBILITY AND RISK OF SWEET POTATO FARMING IN COASTAL LAND IN GADINGSARI VILLAGE, SANDEN, BANTUL
Francy Risvansuna, Zulhijjatul Apriliana and Triyono

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Corresponding Author
Amanda Amanda

Institutions
Universitas Muhammadiyah of Yogyakarta

Abstract
Sweet potato is one of the food crops cultivated by farmers. The problem with farmers is crop failure caused by pests and diseases and drought. This study aims to analyze the costs, revenues, net revenue, profits, and risk levels of sweet potato farming in the coastal land field of Gadingsari Village, Sanden subdistrict, Bantul. This study uses primary data from 80 farmers taken by census. Data obtained from interviews with the help of questionnaires. Data analyzed using income, feasibility and coefficient of variation. The results showed that sweet potato farming in Gadingsari Village was profitable with net revenue of Rp 2,247,361. Sweet potato farming in Gadingsari Village is feasible to run based on R / C, economic work and working capital. Farmers face a low production risk lower than income risk.

Keywords
Coastal land, Feasibility, Risk, Sweet potato

Topic
International Symposium on Social Sciences, Humanities, Education, and Religious Studies

Link: https://ifory.id/abstract/Rd8wTYPuFyQC


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