Indonesia Conference Directory

Corresponding Author
Rina Lusiani

Institutions
Mechanical Engineering Department, Universitas Sultan Ageng Tirtayasa

Abstract
In order to increase the use of new renewable biomass energy in Indonesia, various methods are carried out, one of which is to increase gasification efficiency and performance. One way to improve efficiency and performance is to use a furnace that matches the characteristics of the gas produced. This study aims to design an appropriate gasification furnace. In this study we will cook liquid palm sugar on the vaccum drier and compare the performance and efficiency using and without using a gasification furnace with rice husk biomass. The test results showed a significant increase in performance and efficiency with the use of this furnace.

Keywords
Gasification, Stoves, Vaccum Driers

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/NVjJHfuQC7vq

Corresponding Author
Yuli Agusti Rochman

Institutions
a) Program Pasca Sarjana Teknik Industri, Program Studi Teknik Industri, Universitas Gadjah Mada; Universitas Islam Indonesia, Yogyakarta, Indonesia
*gusti[at]uii.ac.id
b,c,d,e) Program Studi Teknik Industri, Universitas Gadjah Mada, Yogyakarta, Indonesia

Abstract
The company applies lean manufacturing to be competitive in global competition. Through this application, the company carries out quality improvements, cost reduction, timely delivery and other factors. Lean manufacturing is an integrated social-technical system. The lean goal is to eliminate waste and reduce the variability of suppliers, customers, and internal resources and processes. The lean concept is to minimize the amount of time and resources used in the manufacturing process and other activities of a company, with an emphasis on eliminating all forms of waste. A lean framework can be a guide to implementation and help practitioners identify, overcome waste, and understand how and when to apply various lean approaches in organizations to achieve business excellence. This research shows some researchers perspectives on the need for a lean framework. Based on the literature review, there are 3 stages and 21 steps in lean implementation as the initial framework that will be evaluated and produce 3 stages and 8 steps that are in accordance with the needs of the SME.

Keywords
Lean, SME, theoretical framework, the initial lean framework, the proposed lean framework

Topic
Industrial Engineering

Link: https://ifory.id/abstract/yqzPfHnBJ4jh

Corresponding Author
wiyono slamet

Institutions
Universtas Sultan AgengTirtayasa

Abstract
Sultan wind turbine v.5 is a vertical axis wind turbine with a combination of savonius and darrieus types. This wind turbine is the development of previous wind turbine studies. To find out the value of the moment of inertia coefficient and the value of moment inertia rotor sultan wind turbine v.5 the experiment was carried out using an inclined plane. Rigid objects that roll do a combination of two movements at once namely translational motion and rotational motion. Inertia moments of rigid bodies are generally formulated as I = kMR2 where k is the coefficient of moment inertia. In this experiment, the object used is the right and left rotor of the sultan wind turbine v.5. Data collection is done by video recording when the rotor rolls on the inclined plane. The videos are analyzed using tracker software. The motion on the rotor in the videos subsequently tracked to produce position and time data. The tracking method are in two ways, namely auto-tracking and manual tracking. The tracking data is made into a graph resulting in a linear velocity relationship with time. Those graph are analyzed which produces the A gradient value. From the results of calculations and data analysis, the coefficient of mement inertia right rotor is 4.36 and the left rotor is 4.677. The calculation value of the inertia moment right rotor is 2.26 Kgm2 and the left rotor is 2.42 Kgm2.

Keywords
Sultan wind turbine, moment inertia of rotor, tracking methode

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/Fkv3Y9LMAdPn

Corresponding Author
Erny Listijorini

Institutions
Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Abstract
In Indonesia, biomass is the largest source of fuel compared to other countries in Asia, but its utilization is still below the Indian State. To improve the utilization of biomass fuel, this study conducted an experiment on the use of biomass gassification to reduce water content in the process of making sugar palm sugar with vaccum dryer technology. Based on the research that has been done before, this gassification furnace can produce a heat power of 5kW for husk raw materials with a ratio of biomass and the energy generated is 0.5kg of husk / 1 kWh. In this research, the performance of gas husk biomass gassification and costs will be tested.

Keywords
Gassification; Palm Sugar; Vacum Dryer

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/TMJHwjuLkhz7

Corresponding Author
PUTRI PERMATA SARI SAMOSIR

Institutions
a) English Applied Linguistic, State University of Medan
Jalan Willem Iskandar Psr. V, Medan 20221, Indonesia
*putrisams[at]gmail.com
b) Faculty of English Applied Linguistic, State University of Medan
Jalan Willem Iskandar Psr. V, Medan 20221, Indonesia

Abstract
This study was carried out to investigate the types of arguments produced by male and female participants in instagram. The objectives of the study is to describe the types of argument occurring in instagram about Donald Trump Political Status. The data in this study are thirty texts of arguments; fifteen arguments from male and the others fifteen arguments from female. The data were selected in one month. This research was conducted by applying qualitative descriptive research. Types of argument analysis by using Barwise theory showed that male instagram participant tend to use conjunction, negation, conditional, and disjunction to convey their argument in instagram while female instagram participants tend to use negation, conjunction and conditional in instagram.

Keywords
gender language; instagram participant; argument

Topic
Social,Language and Cultural Education

Link: https://ifory.id/abstract/YAX7McwWD6tR

Corresponding Author
Sri Langgeng Ratnasari

Institutions
Riau Kepulauan University, Batam University, Riau Kepulauan University

Abstract
This study aims to determine the effect of the level of education, work experience, and compensation to the performance of employee through work motivation. This research was conducted at PT. PEB Indonesia with the research population are all employees of the Quality Assurance Department. The sample of this study was 187 employees, using census sampling techniques or saturated sampling techniques. Data collection technique was using questionnaires distributed to respondents. The data analysis technique used SPSS and Structural Equation Modeling. The results of this study are the Education Level has a positive and significant effect on Work Motivation. Work Experience has a positive and significant effect on Work Motivation. Compensation has a positive and significant effect on Work Motivation. Level of Education, Experience, Compensation has a significant effect simultaneously on Work Motivation. Education Level has a significant effect on Employee Performance. Work Experience has a significant effect on Employee Performance. Compensation has a positive and significant effect on Employee Performance. Level of Education, Experience, Compensation simultaneously has a positive and significant effect on Employee Performance. Work motivation has a positive and significant effect on Employee Performance.

Keywords
Education Level, Job Experience, Compensation, Work Motivation, Employee-s Performance

Topic
Management

Link: https://ifory.id/abstract/4bnRADj2BNuw

Corresponding Author
Nadiya Ayu Astarini

Institutions
a) Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5 Malang 65145, Indonesia
b) Centre of Advance Materials for Renewable Energy, Universitas Negeri Malang, Jl. Semarang 5 Malang 65145, Indonesia
*markus.diantoro.fmipa[at]um.ac.id

Abstract
Material research for harvesting energy is increasing in an effort to find alternative renewable energy devices. A lot of thermal energy wasted in everyday life. Research for various alternative high-capacitance supercapacitor materials continue to be encouraged. SrTiO3 shows a good electrical and dielectric properties, as well as defect induced structure. Modification of local structure using Pb dopant on the SrTi1-xPbxO3 was applied for exploring the scientific information and its potential applications intensively. Synthesis of SrTi1-xPbxO3 was prepared by solid-state reaction method. The powder was then calcined, pressed into pellet, and subsequently sintered at 860 C. Various fraction of lead (Pb) dopants were carried out in 0.00; 0.02; 0.04; 0.06; 0.08; 0.1 molar ratio. The structure, morphology, and thermoelectric properties of SrTi1-xPbxO3 composite powder were performed by using X-Ray Diffraction, SEM-EDX, and temperature induced conductivity. EDX data analysis revealed that the composition of the sample was in accordance with the composition designed. XRD data analysis with Cu-Ka wavelength indicated the single phase was identified and a slight change in lattice parameters was observed. Sixfold symmetry of the local octahedral structure also changed to a tetragonal structure after introducing the amount of Pb element. For investigating electrical properties of SrTi1-xPbxO3, I-V meter was applied. Furthermore, electrical conductivity and dielectric constant will be discussed in detail. Loading higher Pb fraction promoted the electrical conductivity measured at various temperatures. Increasing conductivity is one indicator that this system potentially enhanced electronic exchange of supercapacitor in SrTi1-xPbxO3 system.

Keywords
supercapacitor, SrTiO3, Pb, structure, temperature electrical conductivity

Topic
Energy Storage

Link: https://ifory.id/abstract/NRTFfvx6jLPQ

Corresponding Author
Akhmad Al Ittikhad

Institutions
a) Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5 Malang 65145, Indonesia
b) Centre of Advanced Materials for Renewable Energy, Universitas Negeri Malang, Jl. Semarang 5 Malang, 65145, Indonesia
*markus.diantoro.fmipa[at]um.ac.id

Abstract
The development of energy storage devices encourage sustainability of research on basic materials of supercapacitor technology. SrTiO3 is oxide metal called as titanate alkali metal ATiO3 (A = Ba, Sr, Ca). This material shows an excellent dielectric constant, thus expected to be a potential as raw material of supercapacitor. In this work, boron was used as a dopant on SrTiO3 system. Synthesis SrTi1-xBxO3 was carried out using solid-state reaction method followed by sintering process in various molar ratio. By introducing boron, it was expected to modify its local structure and enhance the electrical properties. The microstructure of SrTi1-xBxO3 compound was identified by X-ray Diffraction with Cu-Ka. Based on XRD data analysis, a single phase of SrTi1-xBxO3 material was confirmed with a slight change in lattice parameters. Furthermore, SEM-EDX was used to observe the morphology and elemental composition of SrTi1-xBxO3. For investigating the electrical conductivity, I-V meter measurement was applied by inducing various temperature. Higher boron fraction in the compound raised the electrical conductivity, thus it will be performed as supercapacitor material.

Keywords
Supercapacitor, SrTiO3, boron, solid-state reaction, electrical properties

Topic
Energy Storage

Link: https://ifory.id/abstract/zcQf8gKLxbNC

Corresponding Author
Sefia Kharen Gilar Tiana

Institutions
a) Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5 Malang 65145, Indonesia
b) Centre of Advanced Materials for Renewable Energy, Universitas Negeri Malang, Jl. Semarang 5 Malang 65145, Indonesia
*markus.diantoro.fmipa[at]um.ac.id

Abstract
Energy demand is increasing significantly, while conventional energy resources are limited. Various work was carried out by developing and exploring materials which are potentially applied as an alternative renewable energy device. Nowadays, the utilization of thermal energy attracts the research interest due to its abundant quantities. Thus, thermoelectric as a thermal conversion device into electrical energy is the best alternative for confronting this matter. Thermoelectric studies continue to be encouraged, one of them is SrTiO3 based material. For investigating the scientific information and its application, a comprehensive study was needed by modifying the local structure using Bi dopant on SrTi1-xBixO3 system. SrTi1-xBixO3 was prepared via solid-state reaction followed by calcination, molding process, and sintering at 860 C. In this work, the various molar ratio of Bi doping was performed. Substitution of Bi in Ti position of SrTiO3 was intended to find its potential as a high-temperature thermoelectric material. SrTi1-xBixO3 samples were characterized by X-ray Diffraction. A single phase of the compound and a slight change of lattice parameters were identified. Loading amount of Bi changed the octahedral local structure of 6-fold symmetry to tetragonal. SEM-EDX was used to observe the morphology and elemental composition. EDX data analysis showed the composition of samples in accordance with the composition designed. SrTi1-xBixO3 was measured with I-V meter to calculate the electrical conductivity and dielectric constant. Thermoelectric properties were confirmed by inducing temperature during electrical conductivity measurement. Increasing Bi fraction raised the electrical conductivity, thus it corresponded that the material potentially enhanced the figure of merit (ZT) of SrTi1-xBixO3 system. Analysis of dopant in micro size and their physical properties will be discussed in detail.

Keywords
thermoelectric, SrTi1-xBixO3, solid-state reaction, structure, thermal induced conductivity

Topic
Renewable Energy

Link: https://ifory.id/abstract/WF9zvCcPR4bN

Corresponding Author
Lina Suryanti

Institutions
a)Department of Physics, Faculty of Mathematics, Universitas Negeri Malang, Jl. Semarang 5, Malang, Indonesia
*markus.diantoro.fmipa[at]um.ac.id
b)Centre of Advanced Materials for Renewable Energy, Faculty of Mathematics, Universitas Negeri Malang, Jl. Semarang 5, Malang, Indonesia
c)Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Jl. Ir. Sutami 36A Kentingan Jebres Surakarta 57126, Indonesia
d)Department of Physics, Faculty of Science, Universitas of Malaya, 50603 Kuala Lumpur, Malaysia

Abstract
Supercapacitor is one of the energy storage devices with excellent of storing electrical energy, long cycle stability, high energy density, easy construction, environmentally friendly, has the ability to store fast power and longer discharge. Graphene, activated carbon, zinc oxide, and Mn2O3 are good materials which commonly used as supercapacitor electrodes. ZnO-C-based supercapacitor research is currently underway and shows considerable capacitance. Addition of manganese oxide such as Mn2O3 in ZnO-C film will produce good specific capacitance because carbon will reduce the poor conductivity of manganese oxide. This study aims to determine the effect of adding Mn2O3 in the ZnO-C-x(Mn2O3) system to the performance of the supercapacitor produced. Mn2O3 nanoparticles were synthesized using the chemical co-precipitation method. Characterization of ZnO-C-x(Mn2O3) symmetric supercapacitor was carried out using XRD, SEM-EDX and Cyclic voltammetry. The results indicated that as the increase in mass addition of Mn2O3 caused the volume of the ZnO-C-x(Mn2O3) film to increase exponentially. The morphology of the ZnO-C-x(Mn2O3) film was the porous film with the highest porosity of 81.67%. Along with the increasing mass addition of Mn2O3, the specific capacitance of the ZnO-C-x(Mn2O3) film increased exponentially from 1.07 to 3.46 F/g. In addition, along with the increase in mass addition Mn2O3, the energy density of the ZnO-C-x(Mn2O3) film increased exponentially from 0.38 to 1.23 Wh/kg.

Keywords
Supercapacitor, Mn2O3, Carbon, ZnO

Topic
Functional Materials

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

Corresponding Author
Fathinnatussifa Uliyahanun Zuhri

Institutions
a)Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, 65145 Malang, Indonesia
*markus.diantoro.fmipa[at]um.ac.id
b)Centre of Advanced Materials for Renewable Energy, Universitas Negeri Malang, 65145 Malang, Indonesia
c)Institute of Science, School of Physics, Suranaree University of Technology 111 University Ave., T. Suranaree Muang District, Nakhon Ratchasima, Thailand

Abstract
Ni-Co MOF-based systems have been proposed as supercapacitor electrode materials because they show high energy capacitance. However, most MOFs have poor electrical conductivity and narrow micropores which limit the diffusion within the pores. To overcome the weakness of this MOF, MOF can be composite with ZnO and Functionalize Carbon (FC) on the system. This study aims to determine the effect of adding Ni-Co MOF in the ZnO-FC-NiCo MOF system on aluminum substrates to the performance of the supercapacitors produced. The Ni-Co MOF was successfully prepared by the reflux method at 140 °C. ZnO and FC materials are mixed with the addition of Ni-Co MOF mass of 10% and 20% of the total mass, with the blending method for 5 hours. Supercapacitors were arranged symmetrically using 0.5M H3PO4 electrolytes. The samples characterization were carried out using XRD, SEM-EDX, Cyclic Voltammetry, and EIS. It is shown that specific capacitance is increasing, ranged from 1.15 to 6.62 F/g.

Keywords
Supercapacitor, Ni-Co MOF, ZnO, FC

Topic
Functional Materials

Link: https://ifory.id/abstract/ahUpjkwP4qcE

Corresponding Author
Rizky Aditya Sawitri

Institutions
a) Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5 Malang 65145, Indonesia
b) Centre of Advanced Materials for Renewable Energy, Universitas Negeri Malang, Jl. Semarang 5 Malang, 65145, Indonesia
*markus.diantoro.fmipa[at]um.ac.id

Abstract
Thermoelectric materials can convert heat energy into electrical energy. Thermoelectric uses three effects were Seebeck, Peltier, and Thomson effects. Good thermoelectric materials exhibit a large Seebeck coefficient, high electrical conductivity, and low thermal conductivity so that the material might show a good figure of merit (ZT) coefficient. A series of Co4Sb12 skutterudites compound shows excellent potential as a thermoelectric material because Sb-based skutterudites thermoelectric materials possess high mobility, large atomic mass, low electrical resistivity, and Seebeck coefficient reaches up to 200 µV/K. So far the compound was synthesized based on interstitial doping. In this paper, we report on the study preparing of Co4Sb12 skutterudites for which introducing transition metal atom (Ni) ion at Co site to modify a local distortion which in turns to increase of ZT value. Co4Sb12 skutterudites were synthesized using the modified polyol method and fabricated into thin films on glass substrates. Before fabrication, Co4Sb12 skutterudites was dissolved into DMF. The fabricated Co4-xNixSb12 skutterudites films were characterized using XRD, SEM-EDX, UV-VIS, and I-V meter to determine the structure and thermoelectric properties of Co4-xNixSb12 skutterudites. It is found that the crystal system of obtained Co4-xNixSb12 skutterudites falls to cubic with the space group of Im-3 (204). Further analyses of XRD data also shows that the crystallinities are 7.65 and 9.35%, for samples respectively for x = 0 and 0.1. The phase purity of the Co4-xNixSb12 samples reach up to 74, and 63% for x = 0 and 0.1 respectively. The result of UV-VIS spectra analyses shows the band gap for samples x = 0 and 0.1 were 2.59 and 2.66 eV, which indicates the samples are semiconductors like which lower than semiconducting oxides. The I-V meter result shows that the increased electrical conductivity with increasing temperature, indicating that the samples can be used as a raw material for the thermoelectric device. Besides that, the values of electrical conductivity for samples reach 10-4 Ω-1. cm-1, which also indicates the samples were semiconductors.

Keywords
Thermoelectric, Co4Sb12 skutterudites, crystal system, band gap, conductivity

Topic
Functional Materials

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

Corresponding Author
Abdul Rajak

Institutions
a) Department of Physics, Faculty of Mathematics and Natural Sciences,
b) Research Center for Biosciences and Biotechnology, Institute for Research and Community Services,
Institut Teknologi Bandung
Jalan Ganesa 10, Bandung 40132, Indonesia
Corresponding authors:
*krijal[at]fi.itb.ac.id, **miftah[at]fi.itb.ac.id

Abstract
This paper reports on the spinning of nanofiber on the surface of car cabin air filter to enhance its filtration performance. Three car cabin air filters with difference average fiber diameter were used as the samples. Polyacrylonitrille (PAN) nanofiber were deposited on the cabin air filter by electrospinning technique. PAN powder was dissolved with N,N dimethylformamide (DMF) with the concentration of 9 wt.%. The solution properties of PAN nanofiber, including viscosity and surface tension, and the average fiber diameter were characterized. The air filtration performance of cabin air filter before and after nanofiber enhancement were analyzed. The filtration performance, including pressure drop, efficiency and quality factor were measured. From the result, the cabin fiber diameter is strongly influenced the air performance filter.

Keywords
car cabin air filter, performance air filter, nanofibers, electrospinning.

Topic
Nano Science and Technology

Link: https://ifory.id/abstract/RcteMAb2W6yB

Corresponding Author
Abdul Rajak

Institutions
a) Department of Physics, Faculty of Mathematics and Natural Sciences,
b) Research Center for Biosciences and Biotechnology, Institute for Research and Community Services,
Institut Teknologi Bandung
Jalan Ganesa 10, Bandung 40132, Indonesia
Corresponding authors:
*krijal[at]fi.itb.ac.id, **miftah[at]fi.itb.ac.id

Abstract
Polyvinylpyrrolidone (PVP)/ Cellulose Acetate (CA) nanofiber is widely used as carrier of drug from plant extract. The composite was spun by electrospinning method. Since the presence of CA in the PVP solution, the electrospinning process was become unstabil. This paper reported the solution of this problem by control the parameter process of the electrospinning process including current, flowrate and voltage. A constant current electrospinning system was introduced for this control.

Keywords
polyvinylpyrrolidone, cellulose acetate, nanofiber composite, constant current electrospinning

Topic
Synthesis and Characterization Techniques

Link: https://ifory.id/abstract/h6FNZC3faLED

Corresponding Author
Yohanes Edi Gunanto

Institutions
1Dept. of Physics Education, University of Pelita Harapan Karawaci, Tangerang 15811, Indonesia
2Center for Science and Technology of Advanced Materials, BATAN, Tangerang Selatan 15314, Indonesia

Abstract
The efforts to increase reflection loss through material engineering on magnetic materials based on barium strontium hexaferrites have been carried out. The engineering of this material was in the form of lanthanum substitution in the Ba0.6Sr0.4-xLaxFe10MnTiO19 system (x = 0.05, 0.1, and 0.15) which was synthesized by the solid reaction method through mechanical milling technique. Crystal structure, morphology, complex permittivity, and successive complex permeability have been measured using X-ray Difraction (XRD), Scanning Electron Microscopy (SEM) and Vector Network Analyzer (VNA). Based on the results of qualitative analysis, it is showed that the formation of single phase ultrafine particles was successfully confirmed. Quantitative analysis of XRD data showed that there were changes in structural parameters along with changes in the value of x. The observation studies with SEM showed that the synthesized particles had hexagonal morphology. Reflection loss (RL) are -20.1 dB, -24.7 dB, and -20.3 dB for x = 0.05, 0.10 and 0.15, respectively. It was concluded that this material can be applied as a microwave absorber (RADAR).

Keywords
reflection loss; microwaves; milling; Ba0.6Sr0.4-xLaxFe10MnTiO19

Topic
Functional Materials

Link: https://ifory.id/abstract/b6zXR73mcDMg

Corresponding Author
M. Fariz Fadillah Mardianto

Institutions
a) Study Program of Statistics, Department of Mathematics, Airlangga University, Surabaya, Indonesia
b) Department of Sharia Economy, Airlangga University, Surabaya, Indonesia

Abstract
Environment is one of Indonesia problems that should be solved. Environmental conditions have impact on the quality health of human resource from a country. The Ministry of Environment and Forestry stated that the number of garbage stacks in Indonesia has reached 65.2 million tons per year. This condition have impact for health and economic aspects. The government has made regulations to overcome the garbage problem. However, the completion of waste cannot be finished if only relies on the performance of government. Society participation is also needed, so, that environmental conditions will get better. “Trashmart” is an innovation in waste management that starts from the idea of utilizing economically valuable waste, so that it can reduce the amount of garbage piles. This concept invites participation from the society to participate in sorting and grouping waste. Beside an idea about “Trashmart” that provide innovative solutions to reduce waste piles, the research describes the public perception about “Trashmart” idea. The method used is descriptive research conducted through surveys through the distribution of questionnaire along with interviews with the related government institution. Most of respondents and Surabaya government support “Trashmart” concept and that idea will be realized.

Keywords
Trashmart; enviroment problem; people awarness; Surabaya

Topic
Environmental Integrated Management and Policy Making

Link: https://ifory.id/abstract/UyrMnp6CJhPA

Corresponding Author
M. Fariz Fadillah Mardianto

Institutions
a) Study Program of Statistics, Department of Mathematics, Airlangga University, Surabaya, Indonesia
b) Department of Sharia Economy, Airlangga University, Surabaya, Indonesia

Abstract
The high rate of urbanization in various cities is one of the global problems experienced by many countries. Based on data from the United Nations (UN), almost half of the world-s total population, which is 3.5 billion people, lives in urban areas nowadays and it is projected to reach 5 billion by 2030. This problem has also become a major factor which causes cities to experience a decline in its support power. Quoted from the UN, cities exactly only use 3% of the earth-s land, but are able to spend 60 - 80 % of energy consumption, and they result in 75% of carbon emissions. This is the source of urban environmental problems in the world, including ASEAN. Climate change until disasters that occur due to their high concentration of people and location make the city like a double-edged knife. On the one side, the city provides economic opportunities globally but on the other one, it contributes greatly to environmental damage. ASEAN cooperation in the environmental field to realize sustainable cities is one of the strategies in overcoming these. As a basis for implementing these efforts, a statistical analysis is needed in the form of grouping ASEAN countries based on several indicators in the concept of sustainable cities to find out countries with the same level of sustainability and know the dominant problems in each ASEAN country. The data used in this study is sourced from the ASEAN Foundation using the biplot analysis method. The results of it can be the basis for making policies and appropriate solutions to tackle global environmental problems.

Keywords
sustainable cities; ASEAN; biplot analysis; environmental problems

Topic
Environmental Modeling

Link: https://ifory.id/abstract/k6Qfmn4MrNWG

Corresponding Author
Lina Nasihatun Nafidah

Institutions
1 Doctoral Student in Accounting, Airlangga University
lina.nasihatun.nafidah-2017[at]feb.unair.ac.id
2 Department of Accounting, Airlangga University
bambang.tjahjadi[at]gmail.com

Abstract
This study aims to describe how the village innovation strategy was responded by village level policy makers. The Village innovation strategy aims to improve the quality of the use Village Fund which can encourage productivity and economic growth in rural areas as well as build sustainable village capacity to improve the socio-economic welfare of the community and the independence of the Village. With a case study approach, as a field research in the village in our local government we interviewed the District Innovation Team, the Village Innovation Implementation Team, experts appointed by the local government to develop village and village officials. In addition, we also conducted observations on village innovation data. We identified several challenges in the implementation of the village innovation strategy, namely the political element inherent in the village head which had an impact on the low willingness in village development, weak ideas or ideas that were implemented by village policy makers, lack of creativity in exploring village potential. In overcoming these challenges, the role of innovative behavior from policy makers at the village level is one of the main bases that must be embedded in the successful implementation of the strategy. With an exploration strategy approach, entrepreneurial strategies and open and collaborative approaches from various parties are also needed in the successful implementation of innovation strategies. The development of future research related to innovation strategies that are relevant to the characteristics of rural communities is still very much needed.

Keywords
innovation strategy, sustainable development

Topic
Sustainable Development

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

Corresponding Author
Iman Harymawan

Institutions
Universitas Airlangga

Abstract
Along with the rapid growth of technology, environmental problems have become an unavoidable event. These environmental problems are the main factors that can affect sustainable development. Under the increasingly modern market pressure, many companies are disclosing information about carbon emission. This study tries to provide an overview of research related to carbon emission disclosure. This research was conducted by analyzing the research with the title “carbon emission disclosure” or “carbon disclosure project” on Scopus. 21 studies were found in this search. We found articles with extensive discussion covering the environment, accounting, and law. We also provide control variable may be used by future researchers.

Keywords
carbon disclosure project; carbon disclosure; CDP; carbon emissions

Topic
Enviromental Accounting

Link: https://ifory.id/abstract/xJKdYywg2BHW

Corresponding Author
Tryas Sukmaning Sakti

Institutions
Airlangga University

Abstract
The geographical location of Paciran sub-districts located on the coast causes a minimum supply of clean water because the community only relies on 2-3 m shallow well water and PDAM water whose distribution is hampered by a long distance between the source of raw water and the service area, water production capacity is not sufficient and management is not healthy. This causes the availability of clean water in the northern coastal area of Lamongan Regency still does not meet the needs of the surrounding community. The purpose of this study is to propose waqf model to build clean water source infrastructure through synergy between Mineral Water Trading Company (PDAM) and productive waqf using third party assistance, namely investors as an effort to support infrastructure financing, known as the Triangle Synergy concept. The method used is descriptive qualitative. The primary data sources in this study are the results of observations and interviews with relevant speakers related to this research Secondary data sources are books and journals relating to productive waqf, infrastructure development, triangle synergy cooperation agreements. The results of the discussion show that, the level of efficiency and effectiveness of development is more easily realized if using the help of investors through the Triangle Synergy in financing infrastructure development

Keywords
Water Crisis, Waqf, Synergy, Triangle Synergy

Topic
Environmental Economics

Link: https://ifory.id/abstract/hLbRYm8pdVFw

Corresponding Author
Yustrida Bernawati

Institutions
Fakultas Ekonomi dan Bisnis Universitas Airlangga

Abstract
Abstract. The purpose of this research is understand the influence of Good Corporate Governance on the Disclosure of Corporate Social Responsibility in companies listed in 2013-2018 period of BEI that published Sustainability Report. Good Corporate Governance was proxied with Independent Board of commisioner Proportion, Board of commisioner Measurement, Managerial Ownership, and Institutional Ownership. Sampling was done with saturated sample method until the amount of sample obtained reached 110 companies. This research used regression analysis method testing with Determination Coefficient Test (R2) and p test. Based on the Regression analysis result it can be concluded that Board of commisioner Proportion, Board of commisioner Measurement and Institutional Ownership do not have a significant influence on the Disclosure of Corporate Social Responsibility. Whereas Managerial Ownership have significant influence to the Disclosure of Corporate Social Responsibility.

Keywords
Institusional Ownership, Managerial Ownership, Disclosure of Corporate Social Responsibility, Independent Board of commisioner Proportion, Board of commisioner Measuremet.

Topic
Environmental Assessment

Link: https://ifory.id/abstract/mAV98hFfnUYT

Corresponding Author
Yvonne Augustine Sudibyo

Institutions
Fakultas Ekonomi dan Bisnis Universitas Trisakti

Abstract
The objective of this study are to examine the influence of Corporate Social Responsibility and Environmental Consciousness to Green Intellectual Capital which consists of Green Human Capital, Green Structural Capital, and Green Relationship Capital. At this research, Questionnaires were distributed to gather and sorting data. From 194 gathered questionnaires, only 130 questionnaires are used since some of them were not fully completed. The questionnaires were processed using Structural Equation. The result of this study showed that Corporate Social Responsibility has a positive effect on Green Human Capital, Green Structural Capital, and Green Relationship Capital, whereas Environmental Consciousness has a positive effect on Green Human Capital and Green Structural Capital, but not from dimension of Green Relationship Capital.

Keywords
Corporate Social Responsibility, Environmental Consciousness, Green Intellectual Capital, Green Human Capital, Green Structural Capital, Green Relationship Capital

Topic
Enviromental Accounting

Link: https://ifory.id/abstract/CT8uF2Y7AvRy

Corresponding Author
Hindah Mustika

Institutions
Universitas Airlangga, Jalan Airlangga No. 4 - 6, Airlangga, Surabaya, East Java, Indonesia

Abstract
A leader is a person whose job is to lead, while leadership is a talent and / or trait that must be possessed by a leader. In the definition above it can be said that the leader has staff or members led. The purpose of this study is to test and analyze the influence of transformational leadership and transactional on knowledge management with organizational culture as a modetator variable. By using SPPS software and using Multiple Regression Analysis (MRA) statistical analysis techniques to test 90 respondents. Of the 180 respondents there were 90 respondents who perfectly met the criteria, 30 answers were disabled respondents, and 60 were late returning. Leadership behavior that is suitable for employees at PT. The East Java Power Plant has the character of training, educating, improving, influencing, directing, motivating employees to do the best for their customers, listening to subordinates, and emphasizing personal communication that is two-way. The advantage found in the organization and not yet utilized is the knowledge management inherent in the organization and every member of the organization. Organizations need to see knowledge as a valuable and strategic source for staying competitive, organizations need to explicitly manage their resources and intellectual abilities.. Keywords:Knowledge management, leadership and organizational culture

Keywords
Knowledge management, leadership and organizational culture

Topic
Sustainability Reporting

Link: https://ifory.id/abstract/gXKhYdDum3Ca

Corresponding Author
Nadira Rahmandani

Institutions
Universitas Airlangga

Abstract
The relationship between energy consumption and financial development is still uncertain. This study aim to analyses the correlation between energy consumption, financial development, and energy price. This study will use regression model, ordinary least square (OLS) with time series data from 2002-2014. The result show that the regression model is statistically significant, but only energy price that significantly determine the model.

Keywords
Financial development, Energy Consumption, Energy Price

Topic
Energy Economics

Link: https://ifory.id/abstract/nKy4HFMRCJec

Corresponding Author
Roni Padliansyah

Institutions
Fakultas Ekonomi, Universitas Borneo Tarakan
Jalan Amal Lama No.01, Tarakan 77123, Kalimantan Utara
*ronipadliansyah[at]gmail.com

Abstract
Penelitian ini bertujuan untuk mengetahui korelasi jangka panjang dan jangka pendek antara harga logam mulia yang terdiri dari emas, perak, platinum, paladium, dan Jakarta Islamic Stock Index (JKII). Data yang digunakan adalah data harian periode tanggal 2/2/2014 sampai dengan tanggal 29/4/2019. Data JKII di peroleh dari YahooFinance, dan untuk harga logam mulia dari Taiwan Economic Journal (TEJ) database. Uji Ko-integrasi Johanson (Johanson co-integration test), uji kausalitas Granger (Granger causality test), respos impuls (Impulse response analysis), dan Variance decomposition method digunakan untuk mengklarifikasi korelasi jangka panjang dan jangka pendek antara kelima variable. Berdasarkan hasil uji akar unit (unit root test) yang dilakukan memperlihatkan bahwa seluruh variable stasioner pada diferensial orde pertama. Uji ko-integrasi Johansen menunjukkan tidak satupun variable yang berkointegrasi dalam periode jangka panjang. Uji kausalitas Granger menunjukan bahwa emas dan paladium menunjukan hubungan kausalitas dua arah dengan indeks saham syariah, sedangkan untuk perak dan platinum hanya menunjukan hubungan kausalitas satu arah yang berarti setiap perubahan index saham syariah akan berpengaruh terhadap harga perak dan platinum. Hasil analisis impulse respons, dan Variance decomposition method menunjukkan effek dari setiap variable terhadap variable lainnya hanya terdapat pada periode 1 sampai dengan 5 dan menghilang pada periode selanjutnya atau hanya hubungan jangka pendek.

Keywords
Logam Mulia, Jakarta Islamic Stock Index, Time-Series Model

Topic
Manajemen Keuangan

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

Corresponding Author
Fadillahnur Syafira

Institutions
Universitas Airlangga

Abstract
Abstract Purpose This study examines whether the value of the environmental performance and the value of disclosure of the companys greenhouse gas emissions affect the price of ISSI-company shares listed in the ISSI (Indonesian Sharia Stock Index). Methodology This study uses a quantitative method, the sample is selected using a purposive sampling method, namely the method of sampling based on certain considerations with sample criteria are companies listed in the ISSI (Indonesian Islamic Stock Index) and include PROPER value (Programme for Environmental Performance Rating) owned Indonesian Ministry of Environment on the website or company annual report from 2017 to 2018. Findings The findings show that the value of the environmental performance does not affect ISSI stock prices meanwhile the value of disclosure of the companys greenhouse gas emissions affecting the price of ISSI-company shares listed in the ISSI (Indonesian Sharia Stock Index), it means here are still many capital market players who do not pay attention to the environmetal performance (PROPER) ranking information issued by the Ministry of Environment regarding the companys environmental performance.

Keywords
Company greenhouse emissions, Stock prices, environmental performances

Topic
Environmental Impact Assessment

Link: https://ifory.id/abstract/yvhaAwG2XEPr

Corresponding Author
Risky Angga Pramuja

Institutions
University of Muhammadiyah Malang
Airlangga University

Abstract
Every country uses an open economic system or an open economy. The state adheres to an open economic system characterized by international trade and bilateral and multilateral interactions. Each country carries out production and specializes in selling its products to benefit from international trade. The financial sector such as investment. Exchange rates also have an important role in increasing a countrys production capacity. While the purchasing power parity of the community reflects the ability of the community to buy the products produced by the factory. The purpose of this research is to find out the investment performance, purchasing power, and exchange rate, towards factory goods exports in ASEAN-5. The results of the study indicate that investment has a significant, meaning that any increase in investment will directly reduce exports to ASEAN-5 countries in 2010-2016. Likewise, the Power Purchase Parity has a significant but negative effect, this illustrates that every occurrence of increasing public purchasing power, it will reduce the export of goods, which means that peoples appetite for consuming tends to choose domestically produced goods. While the exchange rate does not have a significant effect, meaning that changes in prices that occur globally do not affect the export of goods.

Keywords
: Export, investment, exchange rate, purchasing power, random effect model

Topic
Sustainable Development

Link: https://ifory.id/abstract/rcVvjNDJ8RzU

Corresponding Author
Iman Harymawan

Institutions
Universitas Airlangga

Abstract
The purpose of this study is to investigate the extent to which telecommunications sector companies in Indonesia and Malaysia disclose CSR reports in their sustainability reports.This research was conducted by comparing between the GRI G4 standard and the GRI G4 content index on the companys sustainability report for the three periods from 2014 to 2016.This study found that the level of CSR disclosure by companies in both countries are at the middle level. The major difference between the two countries is in the Specific Standard Disclosures, which shows that companies disclosures in Indonesia are relatively higher on the Economic Category, but tend to be lower in the Environmental Category, Product Responsibility Sub-Category, and especially in the Human Rights Sub-Category compared to companies in Malaysia. This study has implications for CSR disclosure in the sustainability reports of the telecommunications sector in Indonesia and Malaysia.

Keywords
CSR Disclosure; Sustainability Report; Global Reporting Initiative; Telecommunications Sector

Topic
Enviromental Accounting

Link: https://ifory.id/abstract/eGT72kyCXPMa

Corresponding Author
Latifa Hapsari

Institutions
Durham University
Airlangga University

Abstract
A movement to redeem unfriendly economics and business practices have been exercised in different part of the world in the light of tackling global climate change issue and turning such practices sustainable oriented. In finance, such initiative has been expanded in public financing practices whereby new products were introduces in line with sustainability focus. One of the highlighted sustainable driven product is environmentally-friendly public financing product. As one of the largest forestry and highly potential of renewable energy country, the involvement of Indonesia in Sustainable Development Goals (SDGs) could have significant impact in climate change resilient. On the stage of shifting paradigm into sustainability, the current authorized body is assessing diversified sharia-based financing in the Sustainable Finance Roadmap called Green Sukuk. Green Sukuk itself is a subset of Sukuk that finances green assets. In case of Indonesia, it is a potential instrument for financing targeted project on National Energy Plan which requires new renewable energy up to 23% in the national energy mix in upcoming 2025. In general, ethical-based product was induced with the expectation to be not only ethical, which is in this case being environmentally aware, but also being commercially viable and attractive. The latest 5 years oversubscribed experience of retail sukuk in Indonesia is also mainly emphasizing the potential market of sharia-based financial instruments. However, structuring green sukuk would also add more layers in screening criteria as consideration for the investors. This paper aims to identify and map the possibility of Green Sukuk issuance in Indonesia as well as examine potential individual investor-s perspective towards preference in investing in sukuk, what is happening, what are the contributing factors, and to propose the structure to address it. This also includes 109 upper-middle class respondents to properly address the market demand perspective.

Keywords
environment, economic development, green sukuk, sustainability.

Topic
Environmental Economics

Link: https://ifory.id/abstract/JcyRAp2VYe8X

Corresponding Author
Sulistya Rusgianto

Institutions
a) Center for Islamic Social Finance Intelligence, Faculty of Economics and Business, Universitas Airlangga
* sulistya[at]feb.unair.ac.id
b) Islamic Economics Study Program, Faculty of Economics and Business, Universitas Airlangga
c) Faculty of Economics and Muamalat, Universiti Sains Islam Malaysia

Abstract
The Indonesian government has taken the initiative to gradually convert fossil based diesel fuels into biodiesel. This initiative aims to save the state budget as well as to encourage the use of renewable and environmentally friendly alternative energy. This study aims to analyze the effectiveness of the initiatives through investigating the effect of crude oil prices and implementation of the initiative on the price of crude palm oil as the raw material of biodiesel. The results of the study revealed that the crude palm oil increase as the crude oil price increase and the initiative in force, but not as much as the increase in the crude oil. The results imply that the initiative, at a certain level, able to save the state budget.

Keywords
Biodiesel, CPO, Crude Oil, State Budget, Energy Economics

Topic
Energy Economics

Link: https://ifory.id/abstract/M67KWqabcgUY