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All Journal IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Al-Kimia Jurnal Kartika Kimia Jurnal Ilmiah Wahana Pendidikan SAINSTECH: Jurnal Penelitian dan Pengkajian Sains dan Teknologi

Gun Gun Gumilar

Unknown Affiliation

Author-ID : 2672609

Religion Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Education Electrical & Electronics Engineering Engineering Environmental Science Mechanical Engineering Social Sciences Other

Published : 7 Documents Claim Missing Document

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Articles

Mechanism and inhibition efficiency of biomass Tetraselmis chuii sp. on carbon steel corrosion in the environment under the conditions of oil wells Yayan - Sunarya; Heli Siti H; Munawaroh Munawaroh; Gun Gun Gumilar
Al-Kimia Vol 8 No 1 (2020): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v8i1.7230

Corrosion control on petroleum pipe wells can only be done through the addition of corrosion inhibitors. In this study, the corrosion inhibitors studied were sourced from marine microorganisms, namely the type of microalgae Tetraselmis chuii sp. The aim to be achieved in this study was to determine the mechanism and efficiency of inhibition of the extraction of microalgae biomass in corrosion of carbon steel in an environment of petroleum conditions. To achieve this goal, a potentiodynamic polarization method (Tafel extrapolation) was used and the Electrochemistry Impedance Spectroscopy (EIS) method used the galvanostat-potentiostat device (Voltalab 40, PGZ 301). The results obtained from this study indicate that API 5L X65 carbon steel in the petroleum environment is very significantly corroded, caused by acidic media derived from acetic acid and dissolved CO2. The inhibition ability of the Tetraselmis chuii sp. Biomass extract. in line with the increasing extraction concentration reaching optimum at a concentration of 250 ppm with inhibition efficiency reaching 70%. The mechanism of inhibition takes place through the formation of a protective layer adsorbed on the surface of carbon steel. The protective membrane formed is uneven and tends to be porous.

Isolation of Piperin from The Fruit of Piper retrofractum Iqbal Musthapa; Gun Gun Gumilar
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 2, No 1 (2017): February 2017
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v2.i1.06

This paper will described the isolation of major compound from MeOH extract from the fruit of Piper retrofractum. Using several chromatography technique including liquid vacuum chromatography and thin layer chromatography, and further purification using re-cristalization technique, Piperine, an alkaloids compound, was isolated from this extract. The structure of this compound was determined using spectroscopic methods including FTIR, 1D-NMR and 2-D NMR.Keywords : P.retrofractum, alkaloids, piperine, structure elucidation

Implementasi Kebijakan Pemerintah Daerah Kabupaten Bekasi Dalam Pengentasan Kemiskinan Masyarakat Putri Suciana; Usep Dayat; Gun Gun Gumilar
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 7 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

This study aims to examine and analyze and determine the implementation of local government policies in Bekasi Regency in alleviating community poverty (descriptive study in Cipayung Village, East Cikarang District). This research is a descriptive qualitative type with data collection techniques carried out using triangulation which includes interviews, observations and documentation studies, then the data is analyzed by reducing, presenting and drawing conclusions. The theory used is Edwards III's Policy Implementation in Putra (2001:9) in which there are four dimensions, namely nature, organizational structure, communication and resources. The results of this study indicate that the policies made by the Bekasi Regency Government have not gone well because the communication between the Regional Government Apparatus and the Cipayung Village Government has not been coordinated and has not been implemented and has not been implemented by the regional government in implementing poverty alleviation policies against the Bekasi Regency Regional Regulations. Number 10 of 2012 concerning the organizational structure has not yet created characteristics that are able to encourage Small and Medium Micro Business actors to develop better.

Reformasi Birokrasi Dalam Rangka Meningkatkan Potensi dan Kompetensi Aparatur Pemerintah Daerah Guna Terwujudnya Good Governance Rahma Agnia Fauziah; Hanny Purnamasari; Gun Gun Gumilar
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 18 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

In carrying out bureaucratic reform, of course, it is necessary to have potential and competent government officials which are expected, with their presence, to create good governance. And, for the realization of all this, principles, principles and strategies must be applied by the government apparatus. Meanwhile, in reorganizing a bureaucracy, there are several models among which there are 3 (three) models, namely strengthening government regulations and policies, implementing e-government and e-governance, and collaborative governance.

Pengukuran Kualitas Layanan Pemesanan Tiket Online Dari Sudut Pandang Pengguna Jasa Pada Salah Satu Maskapai Penerbangan Nasional (Studi Kasus PT. XYZ) Gun Gun Gumilar; Rahadian Arifin
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 26 No 1 (2016): Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Abstrak --- Tujuan dari penelitian ini adalah mengukur kualitas layanan pemesanan tiket online pada PT. XYZ menggunakan metode WebQual dan E-S-Qual. Pengukuran dilakukan terhadap dimensi Usability, Information Quality dan System Availbility dari sudut pandang penguna jasa. Pengukuran dilakukan dengan membuat survey secara online yang disebarkan kepada pengguna jasa penerbangan PT. XYZ. Data yang di peroleh dari survey tersebut kemudian diolah untuk mendapatkan nilai index WebQual/WQI yang kemudian digunakan untuk menentukan nilai kualitas layanan pemesanan tiket online pada PT. XYZ.

Strategi Pemerintah Desa Dalam Menanggulangi Penyebaran Virus Covid-19 di Desa Sukaluyu Kecamatan Telukjambe Timur Kabupaten Karawang Liawati Liawati; Lukmanul Hakim; Gun Gun Gumilar
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 23 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

This study discusses the Village Government Strategy in Overcoming the Spread of the Covid-19 Virus in Sukaluyu Village, Karawang Regency. The purpose of this study is to find out and examine what kind of strategy the Sukaluyu Village Government is implementing in tackling the spread of the Covid-19 virus. This study uses a qualitative method with a descriptive approach. The author uses data collection techniques in the form of literature studies, observations, interviews, and documentation studies. This study was analyzed using the Theory of Strategic Management which was bought by Fred R. David (2017:4) with three indicators namely, strategy formulation, strategy implementation and strategy evaluation. The results of the research regarding the Village Government's Strategy in Overcoming the Spread of the Covid-19 Virus in Sukaluyu Village, Karawang Regency have not run optimally starting from the stages of strategy formulation, strategy implementation and strategy evaluation. This is due to the absence of a written vision and mission and the absence of village regulations in handling Covid-19 made by the village government as a supporting initial capital in developing strategies. The dissemination of socialization on prevention of Covid-19 was uneven and irrational, and the evaluations carried out did not produce constructive changes.

Alkilamida dari Buah Zanthoxyllum acanthopodium (Andaliman) Iqbal Musthapa; Vidia Afina Nuraini; Gun Gun Gumilar; Ristvi Humairo
Jurnal Kartika Kimia Vol 5 No 2 (2022): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v5i2.163

Senyawa alkilamida tidak jenuh yang dikenal sebagai ZP-amida F telah berhasil diisolasi dari buah tumbuhan andaliman (Zanthoxyllum acanthopodium). Penemuan senyawa ini adalah yang pertama kali pada tumbuhan ini. Penentuan struktur senyawa didasarkan pada data spektroskopi 1H-NMR dan perbandingan nilai geseran kimia dengan standar.

Co-Authors Gun Gun Gumilar Hanny Purnamasari Heli Siti Halimatul Iqbal Musthapa Liawati Liawati Lukmanul Hakim Munawaroh - Rahadian Arifin Rahma Agnia Fauziah Ristvi Humairo Sunarya, Yaya Usep Dayat Vidia Afina Nuraini

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