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All Journal Jurnal Teknik Mesin Jurnal Ekonomi KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan POSITRON Prosiding Semnastek Spektra: Jurnal Fisika dan Aplikasinya International Journal of Supply Chain Management Jurnal Manajemen Bisnis dan Kewirausahaan Jurnal Manajemen Munaddhomah: Jurnal Manajemen Pendidikan Islam Jurnal Kadesi : Jurnal Teologi dan Pendidikan Agama Kristen Jurnal Manajerial Dan Kewirausahaan Journal of Education Technology Information Social Sciences and Health International Journal of Application on Economics and Business Jurnal Ilmiah Riset Aplikasi Manajemen
Yanuar Yanuar
Departemen Teknik Mesin, Fakultas Teknik Universitas Indonesia, Depok
Religion Aerospace Engineering Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Neuroscience Nursing Physics Public Health Social Sciences Transportation Other

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Exploring the Link between Supply Chain Agility, Supply Chain Cost, Supply Chain Responsiveness, Global supply Chain Risk Management, and Contribution in Global Manufacturing: An Indonesian Perspective Arifin, Agus Zainul; Yanuar, Yanuar; M.N, Nuryasman
International Journal of Supply Chain Management Vol 7, No 5 (2018): International Journal of Supply Chain Management (IJSCM)
Publisher : International Journal of Supply Chain Management

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Abstract

During last decade, supply chain management has emerged as a key for sustainable completive advantages. Increasing globalization has given birth to new philosophies and businessman has started focusing on the new ways of occupying market share. However, the share of Indonesia in global production has decreased from 31.953% in the start of this year to 20% in 2017. Which shows a gradual decrease of 11% in 16 years. To address this issue, the ultimate objective of this study is to develop a framework to boost global manufacturing through supply chain activities. This objective was achieved by examining the effect of supply chain agility, effective supply chain cost, supply chain responsiveness and risk management practices. Survey questionnaires was used to collect the data and PLS SEM used to analyze the data. It is found that supply chain agility, effective supply chain cost and supply chain responsiveness has significant positive effect on global manufacturing. Moreover, risk management practices as a moderating variable strengthen this effect and enhances the global manufacturing activities. 
Transformasi Masyarakat Miskin Menjadi Entrepneur Melalui Kolaborasi Yanuar, Yanuar
Jurnal Manajemen Vol 15, No 1 (2011): February 2011
Publisher : Fakultas Ekonomi dan Bisnis, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jm.v15i1.407

Abstract

The poverty is one of the critical problems that a nation has because it will decrease the citizen living such as bad condition of their health, lack of nutrition, low level of ecucation, les productivity which affects on the national productivity.
PDB, Pertumbuhan dan Pembangunan Ekonomi Di Indonesia ., Yanuar
Jurnal Ekonomi Vol 15, No 2 (2010): July 2010
Publisher : Fakultas Ekonom dan Bisnis, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/je.v15i2.408

Abstract

Gross Domestic Product (GDP) of a country is calculated by using the production approach and influenced by the capital, human resources, natural resources, and entrepreneurship. Indonesia with the four most tremendous amounts of resources in the word has actually a potential to be a rich nation which is able to improve its people walfare. But seen from its GDP aspect, Indonesia is only at number 142 in the word.
Dampak Trasfer: Teknologi, Manajemen Dan Pemasaran Terhadap Produktivitas dan Biaya Produksi Produj Palm Sugar ( Studi Kasus Koperasi Ar-Ridho Nagari Simpang Tonang Kecamatan Duo Koto, Kabupaten Pasaman, Provinsi Sumatera Barat) ., Yanuar
Jurnal Ekonomi Vol 19, No 1 (2014): March 2014
Publisher : Fakultas Ekonom dan Bisnis, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/je.v19i1.409

Abstract

Limited funds, education and skill levels to make the productivit and quality of SME products in general difficult to complate in the free market. Help management, production technology, and marketing from University can improve the quality, productivity, and product marketing SMEs(coorperative). This sutdy compared the productivity and efficiency of palm sugar products Cooperative Ar-Ridho before after management assitance, technology, production and marketing by Tarumanagara University of Jakarta. The empirical findings of this study are increased productivity and improved efficiency of palm sugar products after the transfer technologycally,management,and marketing
Infrastruktur Dan Kebijakan Fiskal Di Indonesia ., Yanuar
Jurnal Ekonomi Vol 17, No 2 (2012): July 2012
Publisher : Fakultas Ekonom dan Bisnis, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/je.v17i2.410

Abstract

This article aims at analyzing (1) the condition of Indonesia infrastructure compared to ASEAN countries: Philippines, Vietnam, And Thailand which have the same GDP per capita as Indonesia thas is Lower middle income countries, (2)the financial sources(expenditures and revenues) which are used to develop and to improve quality of infrastructure from GDP an APBN (National Revenues and Expenditures Budget). Data used in the study wewe derives from a veriety of sourch: Finance Departement of RI, Word Bank, Asian Development Bank, and others. The data were analyzed by using descriptive method. The result revealed that the Indonesia infrastructures are left behind compared to treee ASEAN countries (Philippines, Vietnam, and Thailand). To improve the quality of Indonesia infrastrucktures, two ways should be done:a)reducing(or taking off) the subsidiary of duel oil for private cars, b)increasing tax ratio because it is lowe than the tax ration in the three ASEAN countries)
Disparitas Antar Wilayah Dan Provinsi Di Indonesia Sebelum dan Sesudah Otonomi Daerah ., Yanuar
Jurnal Ekonomi Vol 18, No 1 (2013): March 2013
Publisher : Fakultas Ekonom dan Bisnis, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/je.v18i1.411

Abstract

Since the application of local autonomy in Indonesia in 2001, there have been more opportunities for the local governments to organize and manage their regions. It is meant to achieve regional development targets in improving the people's welfare and quality of life in accordance with eac region's and provinces in Indonesia before and after the application of local autonomy. It used the descriptive mertod with secondary data from 1991 up to 2010, and the Gini coeffient analys. This survey has concluded that the application of local autonomy have remained high,both among the regional and provincial levels. During the period of conducting this research, the local autonomy has not signitificantly secceedeed in reducing the desparity levels among regions and provinces in Indonesia.
Pengurangan Hambatan Aliran pada Celah Silinder Koaksial Akibat Slip Yanuar .; Gunawan .; M. Baqi
Jurnal Teknik Mesin (Sinta 3) Vol. 12 No. 2 (2010): OCTOBER 2010
Publisher : Institute of Research and Community Outreach, Petra Christian University

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Abstract

Slip effect which occurs at the wall due to the layer of water repellent wall can reduce the pressure drop. The highly water repellent wall coating on the inside coaxial viscometer slip will be occur. The aim of experiment is proving drag reducing of the torque on the cylinder and the coefficient of velocity slip due to the water repellent coating on the wall. Teflon and wax materials are used to coat the surface of the wall. Contact angle of water droplets with a Teflon-coated walls and waxed each of about 110º and 130º into flat surface. The ratio of the radius of inner cylinder and outer cylinder are 0.932 and 0.676. Glycerin solution with concentration 60%, 70% and 80% wt used the test fluid. The maximum drag reduction occurred is 12% for 80% wt glycerin solution at the 0.932 ratio of the radius. The calculation analysis of the moment coefficient fit with experimental data.
Quantitative Caffeine Analysis in Robusta Coffee Utilizing Amperometric Biosensing Technology Rosandi, Vira Annisa; Umar, Lazuardi; Setiadi, Rahmondia Nanda; Rini, Ari Sulistyo; Erwin, Erwin; Yanuar, Yanuar; Linda, Tetty Marta
POSITRON Vol 13, No 2 (2023): Vol. 13 No. 2 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v13i2.70008

Abstract

Consuming caffeine in inappropriate amounts can disrupt various aspects, especially health. Controlling intake by knowing the caffeine levels in coffee is necessary to reduce the potential negative impacts. This research focuses on the detection of caffeine in Robusta coffee at two different concentrations (1:10 and 1:20 g/mL) and its relationship with yeast metabolism. An amperometric biosensor with a transimpedance amplifier to measure caffeine levels is used which has the advantages of sensitivity, cost-effectiveness, real time monitoring, biocompatibility, and reliable measurements. The data were statistically analyzed using ANOVA and visualized using Principal Component Analysis (PCA). The results revealed a concentration -dependent decrease in biosensor readings as caffeine levels increased (0.1, 0.5, 1, 1.5, and 2 mM), indicating caffeine's ability to inhibit yeast oxygen consumption and oxygen-dependent metabolic processes. The sensitivity of the biosensor in detecting caffeine is 36.66 mV/mM. PCA uncovered complex patterns, relationships, and variations within the caffeine data. PC1 and PC2, the first two principal components, collectively explained 86.3% of the data's variance. Eigenvalues for both PCs were greater than 1, highlighting their significance in understanding the dataset's complexity. This research enhances our understanding of caffeine content in Robusta coffee and its effects on yeast metabolism, providing valuable insights for the coffee industry. This use of yeast biosensors offers efficiency, and adaptability that make that biosensor valuable in a variety of scientific and industrial contexts.
Evaluating Wave Potential and Assessing the Economic Viability of Wave Energy Converters in the South Java Seas Waskito, Kurniawan Teguh; Yudho, Renaldi H; Yanuar, Yanuar; Rahardjo, Gema P
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 20, No 3 (2023): October
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v20i3.60005

Abstract

As an archipelagic nation, Indonesia holds substantial potential for wave energy as a renewable resource. Certain coastlines of islands facing the Indian Ocean, particularly in the western and southern regions, exhibit significant wave energy throughout the year. To identify suitable locations for Wave Energy Converter (WEC) installation, it is essential to assess wave hindcast data. This study utilizes NOAA and ERA5 reanalysis wave data to analyze wave characteristics in Indonesia from 2008 to 2018. Data processing with Ocean Data View is employed to estimate key wave parameters at various locations, including significant wave height, mean wave period, and mean wave direction. Two locations in the South Java seas were identified for WEC installation based on this research. The average values for the period 2008 to 2018 indicate a significant wave height of around 2m, with a maximum height of 5m, a wave period of 10–14s, and a wave direction of 195–210 degrees. Notably, NOAA data suggests a higher estimation of significant wave height compared to ERA5 data. The average annual wave power potential based on ERA5 and NOAA is 164.43 MW/m and 252.15 MW/m, respectively. Furthermore, this study incorporates an economic simulation for the construction of a multi-point absorber WEC. The objective is to offer insights into the Levelized Cost of Electricity (LCOE) and compare it with other WEC technologies. Assuming a WEC capacity of 130 kW, the total construction cost is estimated at $2,093,725, resulting in a Levelized Cost of Energy (LCOE) of $91/MWh.
CHARACTERIZATION OF ENERGY BAND GAP THIN FILM BaTiO3 – BaZr0.5Ti0.5O3 USING DIFUSION REFLECTANCE SPECTROSCOPY (DRS) METHOD Dewi, Rahmi; Manalu, Wesly Arianto; Asrinaldo, Brian Noval; Rini, Ari Sulistyo; Yanuar, Yanuar
Spektra: Jurnal Fisika dan Aplikasinya Vol. 8 No. 1 (2023): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 8 Issue 1, April 2023
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.081.02

Abstract

Ferroelectric material is a dielectric material that has a high dielectric constant value so that it can be made in the form of thin films. Its application is based on electro-optical properties, one of which is the infrared thermal switch. This paper aims to determine the bandgap energy (Eg) of a 0.3BaTiO3 – 0.7BaZr0.5Ti0.5O3 thin film. The 0.3BaTiO3 – 0.7BaZr0.5Ti0.5O3 thin film is a semiconductor material with the valence band and conduction band separated by an energy bandgap (Eg). Thin films of 0.3BaTiO3 – 0.7BaZr0.5Ti0.5O3 were grown on FTO substrates using the sol-gel method. The films of 0.3BaTiO3 – 0.7BaZr0.5Ti0.5O3 were annealed at different temperatures of 700°C, 750°C and 800°C within 1 hour. Characterization was carried out using Ultra Violet Visible (UV-Vis) spectroscopy to determine Eg using the Diffusion Reflectance Spectroscopy (DRS) method. The DRS method was found to be better for solid materials considering the scattering component. The UV-Vis characterization results show that an increase in annealing temperature causes a decrease in Eg. For example the values ​​at 700°C, 750°C and 800°C are 3.5 ± 0.01 eV; 3.3±0.01 eV and 3.2±0.01 eV. The decrease in Eg is related to the diffusion of Barium Titanate (BaTiO3) ions into the Barium Zirconium Titanate (BZT) lattice forming a new sub-gap which in turn gives BT-BZT the ability to absorb lower light. Lower light absorption means more capable optics for multilayer systems.
Co-Authors . Zulfan Agus Wibowo Ahmal, Ahmal Arifin, Agus Zainul Asrinaldo, Brian Noval Awalia, Fellin Yunita Aznandy, Ilham Akbar Caesar, Ignatius Julio Chandra, Davin Octavianus Dedih Sapjah, Dedih Desvita, Yenny Erwin Erwin Fakhriyah, Finna Fathorrahman Fatin, Chika Callista Gumara, Reza Yudha Gunadi, Miguel Tristan Gunawan . Gunawan Gunawan Heri Sulistyo Budhi, Heri Iskandar, Oktavia Lazuardi Umar Lie, Charles Agatha M. Baqi Maharani, Risqi Putri Malau, Yohana Febri Yanti Manalu, Wesly Arianto Merry Merry MN, Nuryasman Mujiono, John Gershom Pane, I.Z Permatasari, Sherly Prajoko, Prastiyo Siswo Putrandi, Rifqi Mulia Rabuana, Ni Kadek Dwi Ningsih Rahardjo, Gema P Rahmi Dewi Rahmondia N. Setiadi Rini, Ari Sulistyo Rosandi, Vira Annisa Rumapea, Valentine Steven Steven Sugeng Supriadi, Sugeng Suseno, Kevin Tetty Marta Linda Theresia Pradiani Valentina, Febiola Waskito, Kurniawan Teguh Widhiadnyani, Gusti Ayu Sinta Wijaya, Mishell Anita Yudho, Renaldi H