Indonesia Conference Directory

Corresponding Author
Khairani Lubis

Institutions
UNIVERSITAS ANDALAS

Abstract
The current position of the wage board is very strategic due to its recomendations by the governor and/or regent/mayor to set the wage in his region. The board of wage was formed based on the decree of the minister, governor and/or the regency/district in accordance with its position at the national level. The board of wage. The board of wage is a tripartite institution in the field ofwage whose membership conssist of government elements, labor union, and enterpreneurs. Those institution must be in the board of wage. Unions are a platform for worker to organize and fight for their rights. One of the fucntions of the Union is as one component that must be in the board of wage as contained in art 25 No.21 of 2000, said that the unions are entitled to establish institutions or doing something who related to improve the workers welfare/labour; the union is represented by one of the unions in the district/city for the board of wage, and and the union for the wage council in the provincial area. The existence of this union is very important in the organizational of the board of remuneration in decisive and determined the size of wages set. However, it can represent workers is no certainty due to the difference of UU No.21 of 2000 about Labor Union dan UU No.13 of 2003 about Labor Law. According to Law No. 21, there are trade unions formed within a company and outside the company, as well as Law No. 13 of 2003, but it is not explained which can represent workers in a tripartite institution whether there are only trade unions in a company or can also be in outside the company. The obscurity raises debate thus difficulty of forming a board of wage in some areas, including West Sumatera. This study uses a sociological juridical approach using library research dan interviews with the Union workers, Department of Manpower, and the Board of Wage of West Sumatera Province.

Keywords
Strengthening,Board of Wage , Labor organization

Topic
Law and Local Wisdom

Link: https://ifory.id/abstract/ekcbrXjmYN6h

Corresponding Author
NURAHIM RASUDIN RASUDIN

Institutions
FACULTY OF LAW
RIAU UNIVERSITY

Abstract
The oil palm plantation sector is the largest investment in Siak Regency. However, with the fall in the price of palm oil, making farmers suffer losses in the management of plantation land. However, from the agricultural sector it is more profitable for farmers. For example, from the comparison of chilli prices of Rp. 45,000 per kg up to Rp. 80,000 per kg. while the price of oil palm is only a price range of Rp. 500 / kg up to Rp. 1,000 / kg. Seeing the above phenomenon, Siak Regency people flocked to switch investments from the plantation sector to the agricultural sector. This is also because the comparison of 1 (one) Ha (hectare) palm oil plantations with 1 (one) Ha (hectare) rice farming is more profitable for farmers in the agricultural sector.

Keywords
Investment-Plantation-Agriculture

Topic
Law and Local Wisdom

Link: https://ifory.id/abstract/azZXyj29bVQC

Corresponding Author
Ridan Muhtadi

Institutions
Universitas Trunojoyo Madura
STAI Miftahul Ulum
Universitas Airlangga

Abstract
The Indonesian Waqf Board (BWI) released the number of waqf land in Indonesia reaching 4,359,443,170.00 square meters or 287,160 hectares spread over 435,768 locations throughout Indonesia. While the amount of waqf property has not been maximized, then it is needed a way to optimize the properties of waqf by way of Istibdal. The purpose of this study is to answer the problem of how istibdal waqf regulatory system in Indonesia and how is the model of the waqf feasibility management for economic empowerment. This research uses descriptive qualitative juridical methods, which are then analyzed using the provisions of Islamic law and provides a model for the management of the endowments of empowerment. The results of the study concluded that the application of the waqf land is in accordance with the pillars and conditions of waqf and management. The eligibility of the waqf land is in accordance with Islamic law and Law No. 41 of 2004 concerning representation which states that the transfer of waqf land is permissible if it is in the public interest. Researchers are inclined to the opinion of Hanafiyah schools that allow ibdal and istibdal with consideration that maslahah and ibdal may be done by anyone either by his own waqif, others or judges.

Keywords
Regulation Construction, Istibdal Waqf, Economic Empowerment.

Topic
Islamic Law

Link: https://ifory.id/abstract/72JuLrwtAxgj

Corresponding Author
fauzi syam

Institutions
Faculty of Law, Jambi University

Abstract
Abstract Dishonorable discharge as Pegawai Negeri Sipil (PNS) who perform criminal act of the office according to court with permanent legal force-s decision, had once again become a national issue of law during the entire year of 2018. The resolution of aforementioned issue have involved many relevant institutions such as BKN (National Civil Service Agency), Kemenpan RB (Ministry of Administrative and Bureaucratic Reform), Kemendagri (Ministry of Home Affairs), and KPK (Corruption Eradication Commission). After the publication of joint decision between Mendagri, Menpan RB, and chief of BKN (SKB Tiga Lembaga) which ordered Pejabat Pembina Kepegawaian (PPK) to hand down PTDH PNS (Dishonorable Discharge as Civil Servant) towards any PNS (Civil Servant) who performed criminal act of the office based on the decision by PBHT (Court with Permanent Legal Force), in 1st of August2019, which had been handed down to 1.906 PNS (88%) out of 2.357 PNS in active duty. The publication of SKB Tiga Lembaga (joint decision of three institutions), have caused controversy among scholars, practitioners, and law experts concerning the the interpretation of article 87 clause (4) letter b UU No. 5/2014 about Aparatur Sipil Negara (UU ASN). There are debates concerning the interpretation of law article 87 clause (4) letter b, implication of PTDH as PNS, and the status of PNS who had been reactivated by PPK (Staff Development Officer) before UU ASN (civil servant acts) was implemented. A variety of parties that felt like their rights were aggrieved had filed constitutional examination of article 87 of UU ASN to the Constitutional Court. Most civil servants that had been dishonorably discharged had also filed a lawsuit to Pengadilan Tata Usaha (PTUN) to receive legal certainty and justice. And yet unlike the controversy of SKB Tiga Lembaga-s publication, PTDH PNS in PTUN (State Administrative Court) was rarely investigated throughly. Even though the legal issues that appear in PTUN-s examination and verdict towards PTDH PNS verdict is far more fundamental and strategic in deciding the progress of indonesian administrative law, which already found its basis in UU No. 30/2014 about gvernment administration.

Keywords
Key words:Verdict Examination of Dishonorable Discharge as PNS (PTDH PNS), State Administrative Court

Topic
Constitutional Law

Link: https://ifory.id/abstract/BDNuVaxwRUE3

Corresponding Author
samariadi samariadi

Institutions
Fakultas Hukum, Universitas Riau
Fakultas Kedokteran dan Ilmu Kesehatan, Universitas Abdurrab

Abstract
Fair puts things in their rightful places. Likewise, the role and position of Mamak Adat in resolving domestic cases. Not all household matters must end in divorce, because actually preventing divorce is the key to kinship in the culture of the malay community that-s distinctive with Islamic values. This writing was conducted to determine the role of mamak adat in preventing divorce from the malay community in Rokan Hulu, Riau Province with the malay traditional law approach. The writing method used by the writer is analytical descriptive with a qualitative pattern. The conclusion of this research, was founded mamak adat has a role and function as a median where the complaints meet when disharmony between husband and wife relationships occur. To place the value of family integrity and the future of children above all the interests of the parties.

Keywords
Mamak Adat, Prevention, Household

Topic
Law and Local Wisdom

Link: https://ifory.id/abstract/XURVP3tuG7xW

Corresponding Author
Adi TiaraPutri

Institutions
Law Faculty, Riau University

Abstract
Terubuk fish that live in the waters of Riau Province are Terubuk fish species with the Latin name Tenualasa macrura while Terubuk fish species that live in Terubuk fish waters are fish species that have high economic value, especially their eggs. In line with the increasing number of human populations and increasing demand for fish resources, the population of fish resources has decreased in number, including the Terubuk fish population. requires anticipatory steps to avoid the threat of extinction. . So in 2011, KP Ministerial Decree No. KEP 59 / MEN / 2011 was issued regarding the limited protection status of Terubuk fish species (Tenualosa macrura) in the waters of Bengkalis Regency, Meranti Islands Regency, and Siak Regency.

Keywords
Regulation, Protection, Terubuk Fish

Topic
Environmental

Link: https://ifory.id/abstract/4WH92gE8dRUc

Corresponding Author
Dodi Haryono

Institutions
Fakultas Hukum Universitas Riau
Jln. Pattimura No. 9 Pekanbaru-Riau
Phone : (0761) 22539
Fax : (0761) 21695

Abstract
One of the crucial SDGs goals is to strengthen an inclusive and peaceful society for sustainable development, provide access to justice for all, and build effective, accountable, and inclusive institutions at all levels. In Indonesia, the goal of the SDGs is to become one of the National Medium­Term Development Plan of 2015-2019 (RPJMN) targets that is to the realization of respect, protection, and fulfillment of human rights. The fulfillment of human right is shown by the increased handling of complaints of human rights violations. This paper explains the importance of protecting the rights of indigenous peoples as part of fulfilling SDGs- demands in the human rights sector, especially through the constitutional review (review act against the constitution) by the Constitutional Court. However, regulations related to SDGs in Indonesia have not provided a clear place for the Constitutional Court through constitutional review to take an active role in realizing SDGs. Likewise, several violations of the rights of indigenous peoples which have been resolved through constitutional review, various obstacles are still found related to the implementation of the Constitutional Courts decisions regarding this matter. Therefore, this paper recommends that constitutional review should be used as a juridical instrument to achieve the goals and objectives of the SDGs. Also, the Constitutional Courts decisions need to be used as a reference in harmonizing the laws and regulations in Indonesia, particularly related to protecting the rights of indigenous peoples, as part of efforts to realize SDGs in Indonesia.

Keywords
Indigenous Peoples Rights, Constitutional Review, Suistainable Development Goals

Topic
Constitutional Law

Link: https://ifory.id/abstract/dJNt9QraFM3P

Corresponding Author
Endra Joelianto

Institutions
Instrumentation and Control Research Group, and National Center for Sustainable Transportation Technology
Institut Teknologi Bandung
Bandung, Indonesia

Abstract
The utilization of renewable energy in transportation has been a trend nowadays. In electric vehicles, for example, the battery pack has become the main energy source to supply the motor. As the main energy source for the vehicles, the management of the battery system becomes important to ensure the availability of the battery. The failure in managing the battery will cause some losses. In order to overcome the problem, various studies in determining the State of Charge (SoC) and State of Health (SoH) of the battery are done. The researchers continue to develop the algorithm that can accurately estimate the SoC and SoH. In this study, the SoC and SoH of the battery are estimated using Dual Extended Kalman Filter that is improved by adding the corrected value of the current. The corrected current will improve the accuracy of the SoC and SoH estimation. The obtained results show the improvement of the accuracy.

Keywords
SoC, SoH, Battery, Dual Extended Kalman Filter, Corrected Current

Topic
Battery Technology and Management System

Link: https://ifory.id/abstract/4rKpW8vZcEn7

Corresponding Author
Daniar Amarassaphira

Institutions
a) Undergraduate Program Medical Doctor, Faculty of Medicine, Universitas Padjadjaran, Jatinangor 45363, Indonesia.
b) Physiology Division, Department of Biomedical Sciences, Faculty of Medicine, Universitas Padjadjaran, Jatinangor 45363, Indonesia.
c) Physiology Molecular Laboratory, Biological Activity Division, Central Laboratory, Universitas Padjadjaran, Jatinangor 45363, Indonesia.
d) Departement of Dermatology and Venerology, Faculty of Medicine, Universitas Padjadjaran, Bandung 40161, Indonesia.
e) Departement of Pediatric, Faculty of Medicine, Universitas Padjadjaran, Bandung 40161, Indonesia.
f) Departement of Public Health, Faculty of Medicine, Universitas Padjadjaran, Bandung 40161, Indonesia.
g) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia.

Abstract
Melanoma is one of the most aggressive types of cancer. Showing a remarkable surge in the last 50 years, melanoma has been projected to be continuously rising in the future. Therapy for advanced type melanoma still becomes a challenge due to low response rate and survival in 10 years. Interestingly, connected with the survival, several epidemiological and preclinical studies had reported that vitamin D deficiency had an association with the progression in several cancer types. Feldman et al 2014 had reported, both in vivo and in vitro studies revealed antiproliferative, antiangiogenic, apoptosis, and differentiation induction effects of calcitriol in various types of cancers. Unfortunately, the study about the calcitriol (1,25(OH)2D3) effects toward melanoma is still limited and its mechanism remains unclear. In the present study, by utilizing B16-F10 melanoma cell line, we elaborate calcitriol antiproliferative effect using MTS Assay in a dose-dependent manner for 24 hours and potential calcitriol-induced apoptosis signaling pathway using Western Blot. We had observed that calcitriol may inhibit melanoma cell proliferation in IC50 of 93.8 ppm lead to the induction of apoptosis-related proteins such as caspase-3, caspase-9, poly (ADP-ribose) polymerases (PARP), mTOR, and HIF1α. These calcitriol-s effects reflect its potential capability as potent adjuvant therapy for melanoma. Taken together, calcitriol inhibited cell proliferation and induced cell death in B16-F10 cell. Thus, showed its potential to be adjuvant therapy for treating melanoma.

Keywords
calcitriol, caspase-3, caspase-9, PARP, mTOR, HIF1α, B16-F10 cell.

Topic
Cellular, Tissue and Genetic Engineering

Link: https://ifory.id/abstract/yvqBZYHg2pkQ

Corresponding Author
Bela Ita Karina

Institutions
Padjadjaran University

Abstract
Exercise is one of dementia-s modifiable factors. Exercise could delay neurodegeneration process by increase Klotho, endogen antioxidant and known as anti-aging gene in human. Klotho in hippocampus have certain function such as neuroprotective against oxidative damage induced by β amyloid and glutamate , regulate hippocampal synaptic plasticity, and enhance GluN2B concentration. However, there-s no study about optimal duration of exercise to enhance Klotho and GluN2B expression in hippocampus. This study conducted to compare acute and chronic exercise effect on hippocampal klotho and GluN2B in Rat This study aims to analyse the effect of acute and chronic treadmill exercise on Klotho and GluN2B gene expression in rat-s hippocampus. This study was done using semi-quantitative and animal experimental study. This study used 36 wistar rat from Biofarma were divided into 4 group, 2 control group (acute control and chronic control) and 2 exercise group (Acute and chronic). All group received moderate intensity(20m/min) in 30min/day for 5x/week. After treatment was given, rats were terminated under anaesthesia, hippocampus was extracted from brain, and expression of klotho and GluN2B were studied using PCR and Electrophoresis. Gel band of each gene was visualized using BioDocAnalyze and band thickness quantified using ImageJ. Statistical analysis were done using IBM SPSS version 20.0 software. Data were served as means ± standard error of means. Data were statistically analyzed with Multivariate Analysis of Variance (MANOVA) followed by Post Hoc comparison using Tukey and Dunett. P-Values ˂ 0.05 were considered to be significant.

Keywords
Klotho, GluN2B, exercise, duration

Topic
Biomarker, Drug Design, Delivery and Teragnostic

Link: https://ifory.id/abstract/AWJxTh3YemUN

Corresponding Author
Suherman Suherman

Institutions
a) Department of Chemical Engineering, Diponegoro University
Jalan Prod. H. Soedharto, SH, Tembalang, Semarang 50275, Indonesia
*hermancrb[at]gmail.com
b) Department of Chemical Engineering, Diponegoro University
Jalan Prod. H. Soedharto, SH, Tembalang, Semarang 50275, Indonesia
*andhinitrianita[at]gmail.com

Abstract
Mango is one of the local food commodities in Indonesia which has a high water and sugar content and is vulnerable to thermal conditions. This study aims to determine the effect of time (t) and pressure (P) freeze dryer on mass balance and the characteristics of freeze dried mango slices produced through 6 kinds of experiments based on time and pressure variations of freeze dryer. Freeze dried mango was then calculated on mass balance and analyzed on moisture content (MC), color, and hedonic test. The value of moisture content on mangoes from all experiments resulted in a value that was in accordance with Indonesian national standardization of dried fruit products. The color of the mango does not have a significant change that has a distinctive color of the type of gedong gincu mango was bright orange to dark orange caused by drying with low temperatures can maintain the chemical structure of the material. The presence of moisture content and color values in the freeze dried mango slices produced affects the level of panelists preference for the product.

Keywords
characteristic, freeze drying, mango, mass balance, moisture content

Topic
Environmentally Sustainable Agriculture

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

Corresponding Author
Yonna Eryani

Institutions
Post-Graduate Studies School, Universitas Pendidikan Indonesia, Dr. Setiabudi Street, Bandung 40154, Indonesia

*yon4smile[at]upi.edu

Abstract
The purpose of this paper is to analyze technology in the blended learning model. The method used is through literature review searches with papers that fit the topic of discussion. The blended learning model is the newest learning media as feedback on direct interaction between instructors, media and students. The focus of the search used is the latest innovations in blended learning. Based on the results, blended learning gives the fundamental benefits of learning that is maximum results include direct learning that can explore material through a variety of technological media.

Keywords
Innovation in IT, Blended Learning Model, Media Technology

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/38rE4ebatZLG

Corresponding Author
Fidi Lee

Institutions
a)Universtas Mercu Buana, Jl. Meruya Selatan No.1, Meruya Selatan, Kec. Kembangan, DKI Jakarta 11650

b)Universitas Katoik Widya karya Malang, Jl. Bondowoso 2-Malang No.2, Gading Kasri, Kec. Klojen, Kota Malang, Jawa Timur 65115.

Abstract
The micro-cracks that commonly occur in concrete structures are a potential source of crack propagation which leads to the possibility of catastrophic failure. Concrete cracks that occur propagating mainly along the interface zone that significantly conditioned by aggregate characteristics. Aggregate characteristics as concrete fillers have a significant role as a strain energy release medium known as fracture energy. This research is using an experimental investigation about the fracture characteristics of concrete using different gradations with a maximum diameter of 25 mm and 20 mm. The experiment includes a compressive strength test and a fracture parameter test. Three-point bend test was selected based on RILEM recommendations to calculate fracture parameters. The result has shown that the aggregate gradations used in concrete mixtures should take into account the effect on compressive strength and total fracture energy.

Keywords
Aggregate grading, compressive strength, fracture energy, stress intensity factor

Topic
Civil Engineering

Link: https://ifory.id/abstract/EBj7W6qp2rvT

Corresponding Author
R. Ergy Rangga Surya

Institutions
Universitas Pendidikan Indonesia
*Ergyrangga90[at]gmail.com

Abstract
This study aims to obtain information about teacher competencies needed to support learning in the digital era. The analytical method used is the study of literature by collecting journals related to the research objectives of 30 journals from 2015-2019. The data obtained is compiled, analyzed and concluded. Data is categorized into competencies in technology adaptation, operating technology tools, and operating technology applications in learning. The findings of the analysis show that the teachers competence in adapting to new technology, operating tools such as computers or laptops, mobile phones, cameras, and the teachers ability to operate applications such as Social Networking Service (SNS) or Social Media, Video Editor, Browser, Blogs and Applications Presentations are needed in the digital era.

Keywords
digital teacher, online teacher, digital era

Topic
Engineering Education Research

Link: https://ifory.id/abstract/JzbF2TYwcXCW

Corresponding Author
Rizki Dwi Purnomo

Institutions
a)Department of Electrical Engineering Education,Universitas Pendidikan Indonesia, Bandung, 40154, INDONESIA
*rizkipurnomo[at]student.upi.edu
b)Department of Physics Education, Universitas Pendidikan Indonesia, Bandung, 40154, INDONESIA
c)Department of Chemistry Education,Universitas Pendidikan Indonesia, Bandung, 40154, INDONESIA
d)Pusat Penelitian Elektronika dan Telekomunikasi,
Lembaga Ilmu Pengetahuan Indonesia , Bandung, 40135, INDONESIA

Abstract
This research aims to develop fiber optic sensors that can be used to measure acid rain levels. This optical fiber sensor uses the evanescent wave type method. SFP Transceiver with a wavelength of 1310nm is used as a fiber optic transmitter and receiver, while the Optical Power Meter (OPM) is used as a validator to test the developed sensor capability. The measurement results indicate the presence of loses successfully detected by OPM and SFP Transceiver. It appears that the maximum value of ammonia mass exceeding acid rain level has been successfully detected with a range of values of 7.12 dBm to 8.34 dBm and 7.51 dBm to 7.71 dBm respectively using SFP Transceiver and OPM. Good results during the validation process show that the optical fiber sensor has successfully worked with a strong correlation of 0.78 to monitor acid rain levels.

Keywords
Fiber optic sensors; multimode optical enforced; evanescent wave type; OPM; pH

Topic
Electrical Engineering

Link: https://ifory.id/abstract/CvD3cdzEFJ8Q

Corresponding Author
Restu Minggra

Institutions
(a) Architecture Department, Universitas Pendidikan Indonesia. Jl. Dr. Setiabudhi No. 207, Bandung.
*rminggra[at]upi.edu

Abstract
Maintaining the quality of transportation buildings is necessary, refer to the number of passengers that escalating every year. Effective movement management is essential to assist the passengers direction and determine the orientation at the transportation building. Signage, as part of the wayfinding system, plays a vital role in managing the passengers movements. The appearance of signage that dominates the visuals in the building intensifies the value of the signage itself. Furthermore, the signages transformed into a significant element that creates another quality for the building. This research aimed to found the role of the signage as part of the building component in the several terminals of MRT and KRL in Jakarta. Observation and data collection related to architecture and signage have been carried out. The result shows that signage has a role in how users experiencing the building and the transportation system itself.

Keywords
signage; transportation; Wayfinding System;

Topic
Architecture

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

Corresponding Author
Aldi Raimon

Institutions
Department of Civil Engineering Education, Faculty of Technology and Vocational Education, Indonesia University of Education

Abstract
Pervious concrete with marble and gravel substitution shows low compressive strength. In another attempt the experiments carried out by adding fly ash as much as 20% of the weight of cement showed an optimal strength. This research aims to increase the compressive strength of pervious concrete by modify coarse aggregate proportions and adding fly ash admixture. Method that used is experimental with 4 variations aggregate size mixture .Type 1 are agregate variation size of 2 cm, 1,5 cm, and 1 cm, type 2 are agregate variation size of 2 cm and 1,5 cm, type 3 are aggregate variations size of 2 cm and 1 cm, and type 4 agregate size 2 cm. Tests are on permeability test and concrete compressive strength test on age 3 days, 7 days, 14 days, 28 days. Permeablity test results based on type of variations agregate size respectively are 0,750 cm/sec, 0,737 cm/sec, 0,647 cm/sec, and 0,840 cm/sec. The results of the compressive strength test on all type at 28 days respectively are 8,008 MPa, 9,879 MPa, 11,542 MPa, and 8,357 MPa. Results of research on variations in the mixture, the maximum compressive strength is variations of coarse aggregate size 2 cm and 1 cm.

Keywords
pervious concrete, fly ash, marble waste, permeability, compressive strength.

Topic
Civil Engineering

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

Corresponding Author
Sumiyadi, SE,.ME.

Institutions
a) IAIN Kendari
*sumiyadi.icieve2019[at]gmail.com
b) IAIN Kendari
c) IAIN Kendari
d) UHO Kendari

Abstract
This study aims to explain and analyze the implementation of digital information technology based on Sharia online trading systems (SOTS) in the Islamic capital market. The qualitative approach method used in this study is descriptive analytical. The era of the digital economy is currently developing massively helping to encourage economic development in the world and the advancement of modern communication technology so as to have a positive impact on the advancement of the Islamic capital market in Indonesia. In the last 20 years, the development of the Islamic capital market has experienced very significant growth. The number of Islamic investors according to Bursa Efek Indonesia data in 2015 was only 4,908 and increased to 12,283 in 2016 or there was a growth of 150% of investors in the Islamic capital market. Based on the results of the analysis in this study, it was concluded that in the face of a very significant investor growth each year, Islamic capital market industry players facing the demands of service modernization in the digital era have made innovations so that they can meet the ease of service that is efficient, safe and fast. Technological innovations in the Islamic capital market, namely online digital information systems, create many variants of smart applications in the form of e-commerce, e-payment, online trading and online transactions, making it easier for people to invest in the Islamic capital market. The development of SOTS-based online digital services is more dominated by millennials or commonly dubbed "kids these days" who always update the development of online digital technology. This has triggered investment growth in the Islamic capital market in March 2019 to reach 50,500 investors and compared to December 2018 only amounted to 44,536 investors or in percentage there was an increase of 11%.

Keywords
Implementation, Digital Information Technology, SOTS, Islamic Capital Market.

Topic
Computers, Internet, Multimedia in Engineering Education

Link: https://ifory.id/abstract/w3GDKqaxNhgE

Corresponding Author
veronikha effendy

Institutions
(a) Informatics Department, School of Computing, Telkom University
Jl. Telekomunikasi Terusan Buah Batu, Bandung 40257 Indonesia
(b) Information technology Department, School of Computing, Telkom University
Jl. Telekomunikasi Terusan Buah Batu, Bandung 40257 Indonesia
veffendy[at]telkomuniversity.ac.id
danangjunaedi[at]telkomuniversity.ac.id

Abstract
Emergencies can occur anytime, anywhere, and to anyone. The local government offers an application called "Panic Button" as a solution to these problems. This application aims to help people who experience or see emergency conditions so that they can be followed up by the authorities. However, this application has not been targeted at disability users. The procedure for using this application still has weaknesses that make it difficult for users with hearing loss, especially when an emergency event is confirmed. Normally, emergency event confirmation uses telephone calls to the incident reporter (user). This confirmation method is a big problem for those users with disabilities to be able to confirm the details of emergency events. In this research, a user interface re-design was carried out at the application interface to be able to accommodate the needs of users. The interaction re-design is built using the User-Centered Design (UCD) method to produce a design that matches the users characteristics and limitations. The resulting prototype was evaluated using the USE Questionnaire method and results in a usability value of 87% with a very good category after the 3rd iteration. These results indicate that the results of the re-design that have been done are quite easy to learn and use by users.

Keywords
emergency, disability, panic button, UCD, USE Questionnaire

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/A2rL8gbUJj4Y

Corresponding Author
Stefanus Soegiharto

Institutions
a) Department of Industrial Engineering, Faculty of Engineering, University of Indonesia
*stefanus.soegiharto[at]ui.ac.id
b) Department of Mechanical Engineering, Faculty of Engineering, University of Indonesia

Abstract
A maritime inventory routing problem (MIRP) or sometimes referred to as inventory ship routing problem (ISRP) is a tactical planning problem where the ship operator has the responsibility not only for the ship routing and scheduling, but also for the inventory management at one or both ends of the sailing points. Generally, this problem is most often encountered by actors in the industrial shipping segment who transport large quantities of dry or liquid bulk cargoes from several production ports to several consumption ones over a given planning horizon. The bulk products are usually stored as inventories, which levels have to be maintained within certain limits, at or near the production (loading) and consumption (unloading) port. This paper developed a model for assigning a heterogeneous fleet of ships engaged in shipping of multiple liquid bulk products which cannot be mixed for finding a minimum cost routing. We assumed that the ships have multi-undedicated compartments to keep the products separately. The challenging thing in this model is that we considered the allocation of the products into compartments which has been treated so far as a separate planning problem. This stowage onboard the ships is important because it will affect the ship stability and strength. Haphazard stowage will cause ship structural damage because of improper cargo distribution and loss or reduction of stability during a shipping. This model is formulated as mixed-integer linear programming (MILP) model. Several problem instances are randomly generated and solved using LINGO 11.0. The results illuminate that we should develop a heuristics-based approach in order to solve larger instances of the model.

Keywords
Maritime inventory routing problem; cargo allocation planning; MILP model

Topic
Industrial Engineering

Link: https://ifory.id/abstract/8U4WVFDmjd3H

Corresponding Author
Reinald Muhammad Naufal

Institutions
1) Science Education Study Program, Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia, Bandung, Indonesia

2) Science Education Department, School of Postgraduates, Universitas Pendidikan Indonesia, Bandung, Indonesia
*Corresponding Author. nuryanirustaman[at]upi.edu

3) Computer Science Department, Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia, Bandung, Indonesia

Abstract
Programme for International Student Assessment (PISA) 2015 developed an assessment tool to measure Collaborative Problem-Solving (CPS) proficiency that can only gather data in a large scale and difficult to be used in classroom. This study aims to develop an assessment tool that can be used to measure the CPS skills of eighth graders in the classroom. The assessment tool was made to be computer-based software / application for easier sharing and assessment. This study used developmental research method. The development went through (1) Preparation stage, where the application was concepted; (2) Development stage, where the application was developed using prototyping development model; (3) Testing stage, where the application was judged by two experts, each on logical thinking assessment and ICT, where the application was deemed valid and readable under “very good” category. The application was tried by 19 eighth graders in Labschool UPI, the students work in a group of three to solve the puzzle in the application. The students fill a questionnaire of readability, and the application falls under the “good” category. (4) Final stage, where after the data was analysed, and determined that the CPS assessment tool developed can measure the CPS skill of eighth graders.

Keywords
collaborative problem solving (CPS) skills, computer-based assessment tool, prototyping development model

Topic
New Technologies in Education

Link: https://ifory.id/abstract/m328bNTxc9Mv

Corresponding Author
veronikha effendy

Institutions
Telkom University

Abstract
E-catalog is a marketing media that aims to make it easier for consumers to get information about a product, including the type of product, the shape of the product even the price of the product. One of the official motor dealer in Indonesia has a Spare Parts e-catalog. Unfortunately, this application still has problems with the user interface, so it makes the user hard to get the information they need. This also strengthened by the low usability test results using the USE Questionnaire. The observation also showed that the image of the spare part is unclear so that makes it difficult for users to get the information and imagine the original shape of the spare part. The low usability results also indicate that this application is still difficult to use, difficult to learn and unsatisfactory for consumers. Based on those problems, a redesign of the user interface is required to assist users in obtaining the required spare part information. Appropriate technology for visualizing spare part images in more detail is Augmented Reality (AR). The re-designed user interface has built using The Goal-Directed Design (GDD) method for accommodate on achieving the goals of the user and the dealer. The prototype then evaluated by USE Questionnaire, and the usability value increased to 84%. This result indicate that the re-designed user interface of the application can facilitate the user in finding the information needed with easier way and satisfying.

Keywords
e-catalog, spare part, GDD, Augmented Reality, USE Questionnaire

Topic
Computer and Communication Engineering

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

Corresponding Author
Suharjanto Utomo

Institutions
Prodi Informatika Universitas Nurtanio Bandung

Abstract
Mortar is one of the weapons that is still used for warfare. In determining the direction of mortar shoot there are still using conventional way with paper. Then it takes a portable calculator that is fast and accurate in determining the angle of elevation and angle of azimuth. So it is proposed that this mortar fire direction is a mobile application with multiplatform development method that can run on Windows, Android, and iOS operating systems. The result of this research is a prototype mobile application that provides a report of elevation angles and azimuth angles rather than mortar quickly and accurately to the intended goal.

Keywords
mortar, elevation, azimuth, multiplatform

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/QXFq86dvgkrb

Corresponding Author
lidya elizabeth

Institutions
Chemical Engineering Department, Politeknik Negeri Bandung

Abstract
Carbon dioxide contributed great amount of Green House Gas (GHG) emission. Solid adsorption is one of the way to ease carbon dioxide emission. The effectiveness of CO2 adsorption by solid K2CO3/rice husk in fixed bed column by evaluated adsorption capacity, breakpoint time and length of effective bed height/HB were investigated. K2CO3 used as adsorbent and rice husk as support. The K2CO3 adsorption occurred at fixed bed column under mild condition. The CO2 inlet and outlet concentration were analysed by acid-base titration. The highest adsorption capacity by K2CO3/rice husk is 0.2 mmol/g adsorbent at CO2 inlet flow rate 28 LPM with 50 gr K2CO3. Meanwhile, the highest breakpoint time is 685.5 second which at CO2 flow rate 15.9 LPM and K2CO3 adsorbent 50 gr. Perhaps, variation of CO2 flow rate and amount of adsorbent do not affect CO2 adsorption capacity significantly.

Keywords
solid adsorption, K2CO3, breakthrough curves, adsorption capacity

Topic
Chemical Engineering

Link: https://ifory.id/abstract/6NRvFP9WraXQ

Corresponding Author
Ridwan Ridwan

Institutions
a) Electrical Engineering Education of Universitas Negeri Manado Jalan Tondano, Kabupaten Minahasa 95618, Indonesia
*ridwan[at]unima.ac.id
b) Faculty Engineering of Lecturer Electrical Engineering Education of Universitas Negeri Manado Jalan Tondano, Kabupaten Minahasa 95618, Indonesia

Abstract
This study aims to: (1) development quizstar-assisted blog learning media on electrical measurement college students, especially semiconductor material and basic logic gates, (2) analyze the quality of quizstar-assisted blog learning media on electrical measurement college students, and (3) test the effectiveness of blog learning media quizstar-assisted to improve the critical thinking ability of electrical measurement college students. This research is included in the research and development of the ADDIE model with data collection techniques, namely a questionnaire to see the satisfaction of lecturers and college students in using quizstar-assisted blog learning media and college students critical thinking ability. The test subjects in this study included the 3rd semester college students majoring in electrical engineering education. The results showed that (1) the development of quizstar-assisted blog learning media on electrical measurement college students in accordance with the development procedures, (2) the quality evaluation of quizstar-assisted blog learning media on electrical measurement college students on average lecturer respondents received excellent categories and student satisfaction in the category agree, and (3) in general the results of blog learning media are effective for improving college students critical thinking ability in electricity measurement courses

Keywords
Blog, quizstar, critical thinking ability, electrical measurement

Topic
Research and Development in Engineering Education

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

Corresponding Author
Adelfy Dara Arianti

Institutions
a) Civil Engineering, Mercu Buana University
Jl. Meruya Selatan No. 1, Meruya Selatan, Kec. Kembangan, DKI Jakarta 11650, Indonesia
*adelfydaraarianti[at]gmail.com
*resmi.bestari[at]mercubuana.ac.id

b) Civil Eningeering, Katolik Widya Karya Malang University, Jl. Bondowoso 2-Malang No. 2, Gading Kasri, Kec. Klojen, Kota Malang, Jawa Timur 65115, Indonesia
*agneshpatty[at]gmail.com

Abstract
Concrete are brittle material is generally consists of many micro cracks which are potential sources of crack propagation that lead to the possibility of catastrophic failure (rapid or catastrophically) resulting in fracture of the concrete structure under service load. The relationship of fracture energy with material properties has not been clearly identified, with most studies showing insensitivity relative to the water-cement ratio where cracks in concrete propagate particularly along the cement-aggregate interface. This study was an experiment on the effect of water-cement ratio on fracture energy based on RILEM method with several tests such as compressive strength, modulus elasticity and flexural strength. Fracture energy was measured through a three-point-bending test of notched concrete beams. The configuration of the beams was 20x10x120 cm with the ratio of notch to depth was 0.25 and the loading rate was 0.05 mm/min. The testing controlled by midspan deflection which produced a load-displacement curve. Concrete mixtures contain crushed aggregate with maximum sizes of 19 mm are tested at ages 28 days and have water-cementitious (w/cm) ratios are 0.30, 0.40 and 0.6. The correlation between fracture energy and water-cement ratio are characterized by the fracture energy does not increase while the compressive strength is increase. This can be seen when concrete which contains a lower water-cement ratio (0.3) tends to have a rather high compressive strength but decreased the fracture energy.

Keywords
compressive strength; modulus elasticity; fracture energy; water-cementitious ratio

Topic
Civil Engineering

Link: https://ifory.id/abstract/bMpPWfT6xHXr

Corresponding Author
Ignatius Djoko Irianto

Institutions
Center for Nuclear Reactor Safety and Technology, Batan

Abstract
An Experimental Power Reactor called RDE (Reaktor Daya Eksperimental) is small size non-commercial power reactor with the thermal power of 10 MW is being designed based on high-temperature gas cooled reactor (HTGR). The purposes of the RDE designed is to generate electricity for supplying electricity in Serpong research area and to supply thermal energy for experimental purposes. The design of energy conversion system in the RDE design is designed in cogeneration configuration with a Rankine cycle. To meet the design goals, the configuration of the energy conversion system for RDE is designed in a cogeneration configuration with a Rankine cycle. The reactor coolant temperature at the outlet is designed at 700 oC, and the steam temperature at the outlet of the steam generator is designed at 530 oC. The analysis of RDE cogeneration energy conversion system performance is concentrated on two parameters namely the thermal efficiency parameter and the parameter that states the energy utilization factor (EUF). The aims of this research aims is to calculate and analyze the optimal of the two parameters in the design of RDE energy conversion system. The calculation of these parameters and analysis of the performance of RDE energy conversion system are performed by simulation using computer code ChemCad. The simulation results show that the energy utilization factor of the cogeneration configuration for the RDE energy conversion system can increase the energy utilization factor by more than 60%. From these results it can be concluded that the energy conversion system in the cogeneration configuration can increase the energy utilization factor and can save the reactor fuel.

Keywords
Performance, energy conversion system, RDE, thermal efficiency, energy utilization factor

Topic
Industrial Engineering

Link: https://ifory.id/abstract/yWLgE3mqaxRF

Corresponding Author
Meliani Ramdhaniati

Institutions
Universitas Pendidikan Indonesia
*melianiramdhaniati11[at]gmail.com

Abstract
The purpose of this research is to learn how to utilize Lumion animation in digital learning in architectural education. This study uses the Systematic Literature Review (SLR) method by reviewing journals that discuss Lumion Animation, from 2014 to 2019. The results show that Lumion Animation can be used easily included in architecture users to adjust it according to the work world allowances. This research is expected to be a reference for researchers about the application of lumion in architectural education.

Keywords
lumion, animasi, architectural

Topic
Engineering Education Research

Link: https://ifory.id/abstract/gf9YcRHhbWTU

Corresponding Author
Ridwan Ridwan

Institutions
a) Electrical Engineering Education of Universitas Negeri Manado Jalan Tondano, Kabupaten Minahasa 95618, Indonesia
*ridwan[at]unima.ac.id
b) Faculty Engineering of Lecturer Electrical Engineering Education of Universitas Negeri Manado Jalan Tondano, Kabupaten Minahasa 95618, Indonesia

Abstract
This study aims to differences in students learning outcomes with the model of creative problem solving model with problem base learning model in vocational high school. This study was a quasi-experimental, with the subject of the research being the students of vocational high school 1 Pariaman to class X electrical installation techniques. From these two classes, random select class X electrical installation techniques 1 as the experimental and X electrical installation techniques 2 as the control. Data collection in this study used 25 items achievement posttest in the form of objective material. The data obtained were analyzed using the mean and t-test. The results of this study are seen from students learning outcomes using the creative problem solving model has an average of 73.6 and using the problem base learning model has an average of 69.8 while the hypothesis testing criteria are obtained tcount > ttable or 2.54 > 1.99 . Thus, the results of this study indicate that there are significant differences in students learning outcomes using the creative problem solving model with the problem base learning model in the basic subjects of electricity and electronics

Keywords
learning outcomes, creative problem solving model, problem base learning model

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/TtHKg43fvWbJ

Corresponding Author
Rossarin Jermtaisong

Institutions
1 Department of Education, Faculty of Technical Education, Rajamangala University of Technology Thanyaburi, Pathum Thani, Thailand, E-maill: Rossarin_J[at]rmutt.ac.th
2 Department of Education, Faculty of Technical Education, Rajamangala University of Technology Thanyaburi, Pathum Thani, Thailand, E-maill: pranom [at]rmutt.ac.th

Abstract
TThis research aimed to create and develop standard indicators for basic education teacher competency in the 21st century and exploratory the standard indicators of teacher competencies for basic education level in the 21st century. Research samples were 750 teachers, selected by multi-stage sampling, working for office of the basic education commission. The instrument used for data collection was a five-rating scale questionnaire on standard indicators for basic education teacher competency in the 21st century. Percentage, mean, standard deviation and exploratory factor analysis were used for data analysis. The research findings were as follows: 1) The correlation coefficients of each pair of question ranged from 0.301-0.849 while the highest correlation was 0.849. The Kaiser-Meyer-Olkin Measure of Sampling Adequacy was 0.968 and Bartlett-s Test of Sphericity was (sig = 0.000). The Eigenvalue could be used for factor extraction and resulted in 19 factors with cumulative variance at 73.21 which was higher than the set value of 60%. 2) Exploratory factor extraction resulted in 19 indicators namely : knowledge in subject content and pedagogy, design of learning management, learning management and classroom management, use and development of innovative media technology for learning management, measurement evaluation and research for learning development, psychology for learning management, educational assurance, curriculum construction and development, learner development, leadership moral ethic and conduct, achievement oriented in work performance, good governance, personal and professional development, teamwork, communication and cooperation, building relationships and cooperation with communities, personnel management skills, and learning skills creativity and innovation.

Keywords
Teachers Competency, Indicators,Exploratory factor analysis

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/kWvhL4Vr8UAz