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All Journal JURNAL SAINS PERTANIAN EQUATOR PREMISE LAW JURNAL JIKSI (Jurnal Ilmu Komputer dan Sistem Informasi) ELEMENTARY SCHOOL JOURNAL PGSD FIP UNIMED KOVALEN: Jurnal Riset Kimia Faktor Exacta JURNAL EDUCATION AND DEVELOPMENT Jurnal Serambi Engineering JURNAL GLOBAL EDUKASI Jurnal Teknik Sipil dan Teknologi Konstruksi Jurnal Ilmiah Lingkungan Kebumian Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Proceeding International Seminar of Islamic Studies THEOREMA : The Journal Education of Mathematics Gemilang: Jurnal Manajemen dan Akuntansi Teknologi dan Industri Pertanian Indonesia Jurnal Ilmiah Mahasiswa Pertanian

Darwin Darwin

Unknown Affiliation

Author-ID : 471973

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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PEMANFAATAN CANGKANG KEONG SAWAH SEBAGAI SUBSTITUSI SEBAHAGIAN SEMEN DAN AGREGAT HALUS TERHADAP KUAT TEKAN BETON Munirul Hady; Bunyamin Bunyamin; Darwin Darwin; Aulia Rahman; Andrisman Satria
Jurnal Teknik Sipil dan Teknologi Konstruksi Vol 8, No 1 (2022): Jurnal Teknik Sipil dan Teknologi Konstruksi
Publisher : Universitas Teuku Umar

AbstractConcrete is one of the choices as a structural material for construction in the construction sector, in this case, a concrete mixture is an object that is often used as research to obtain efficient construction methods and develop concrete constituent materials. The utilization of waste as a substitute for portland cement or additives is not a new thing. This research is expected to reduce rice snail waste that pollutes the environment and compare the compressive strength of normal concrete with concrete that uses rice snails as a partial substitute for cement and fine aggregate. This study refers to the ACI 211.1-91 and ASTM C-33/C33-08 methods. The rice snail waste was first crushed and filtered through a sieve that passed the ASTM No. 200 filter as a partial substitution of cement with substitution percentages of 0%, 5%, 10%, and 15% in the concrete mixture. The test object used is a cylinder with dimensions of 15 cm x 30 cm, totaling 40 specimens with a planned concrete quality of 17 MPa by the minimum requirements for structural concrete in SNI 2847-2019. Each percentage of 5 samples and testing will be carried out until the concrete is 28 days old in an immersion bath. The results show that the compressive strength using 0% snail shell variations was 17.35 MPa and 5%, 10%, and 15% variations were 15.74 MPa, 10.60 MPa, and 7.63 MPa. As well as the ratio of the density of the volume of concrete with mixed variations of 0%, 5%, 10% and 15%, namely 2344.4 kg/cm3, 2277.2 kg/cm3, 2170.4 kg/cm3 and 2103.7 kg/cm3. Keywords—Compressive Strength of Concrete, Rice Snail Waste, Substitution

ANALISA KASUS ATAS PUTUSAN MAHKAMAH AGUNG NOMOR 1134/PDT/2009 TENTANG KEPEMILIKAN HAK MILIK YANG KEMUDIAN SUBJEKNYA DIKETAHUI SEBAGAI WARGA NEGARA ASING ATAS DASAR WASIAT DARWIN DARWIN
PREMISE LAW JURNAL Vol 7 (2016): VOLUME VII TAHUN 2016
Publisher : PREMISE LAW JURNAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (287.918 KB)

A foreign citizens cannot be ignored to be an heir as stipulated in Article 26, paragraph 3, Article 30 paragraph 2, and Article 36 paragraph 2 of UUPA the legal consequence of violating it is that the ownership will be cancelled. The result of the Case of the Supreme Court’s Ruling No. 1134 K/Pdt/2009 research shows that the procedure if signing a will before a Notary for a foreign citizen in making a certificate should pay attention to the spa of time of the land rights by checking the identity of the foreign citizen and the other supporting documents. The list of data at the Sub-directorate of Estate in the Ministry of Law and Human Rights by giving the copy of the Will which has been made in Indonesia. The legal status of the Ownership certificate registered in the name of the defendant is recognized as the defendant’s since the land has been registered sporadically and transparent in the name of the defendant, based on the will and the man empowered to receive the will. It is also approved be the authorities such as Subdistrict Head, the National Land Board, and witnessed by the neighbors. Besides that, the defendant has changed his citizenship before the certificate is issued. The judge’s consideration in the Supreme Court’s Ruling No. 1134 K/Pdt/2009 does not give legal certainty in the administrative process of issuing the certificate. Keywords: Foreign Citizen, Ownership, Will

KAJIAN EKSTRAKSI GELATIN DARI TULANG IKAN MUJAIR (Oreochromis mossambicus) Darwin Darwin; Ahmad Ridhay; Jaya Hardi
KOVALEN: Jurnal Riset Kimia Vol. 4 No. 1 (2018): Edisi April
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Penelitian ini bertujuan untuk mengetahui pengaruh waktu perendaman dan rasio antara berat tulang ikan mujair terhadap volume asam sitrat 9% (b/v) dalam menghasilkan gelatin dengan rendemen tertinggi dan mutu terbaik. Penelitian ini dilakukan menggunakan rancangan acak lengkap (RAL) dengan 5 taraf waktu kontak yaitu 24, 36, 48, 60,dan 72 jam dan 5 taraf rasio berat tulang ikan mujair: asam sitrat 1:2, 1:3, 1:4, 1:5 dan 1:6. Penentuan pengaruh waktu perendaman dan rasio dilakukan dengan menggunakan metode pembobotan berdasarkan hasil uji statistik dengan menggunakan 5 parameter pengujian yakni rendemen, kadar abu, kadar air, viskositas, dan kekuatan gel. Dari hasil penelitian menunjukkan bahwa pengaruh waktu perendaman dengan menggunakan 5 parameter tertinggi adalah 36 jam dan rasio adalah 1:6, dengan rendemen 9,439%, kadar abu 2,8%, kadar air 5,81%, viskositas 5,24 cP, dan kekuatan gel terbaik 38,1 mm/kg.sKata kunci : Gelatin, tulang ikan mujair, asam sitrat, viskositas, kekuatan gel

PEMBUATAN GAME PLATFORMER “NEO THE DEFENDER OF NATIVE LAND” PADA PLATFORM ANDROID Darwin Darwin; Jeanny Pragantha; Darius Andana Haris
Jurnal Ilmu Komputer dan Sistem Informasi Vol 7, No 1 (2019): JURNAL ILMU KOMPUTER DAN SISTEM INFORMASI
Publisher : Fakultas Teknologi Informasi Universitas Tarumanagara

“Neo The Defender Of Native Land” is a platformer game for Android. Where the player must save the world by killing the boss and save citizens. This game use two-dimensional graphics. The game uses a virtual button control to run, attacking. This game created by Unity game engine with C# as programming language and photoshop to use to make object, animation. Testing was done by the blackbox testing, alpha testing by lecturer, and beta testing by surveying 34 respondens. Test results show that most responden have played platformer games before. the test results show that the "neo the defender of native land" game is a pretty entertaining game.

Improvement of Midle Voltage Network Protection System at Kualanamu International Airport Suwarno Suwarno; Rohana Rohana; Darwin Darwin
Budapest International Research and Critics Institute (BIRCI-Journal): Humanities and Social Sciences Vol 4, No 3 (2021): Budapest International Research and Critics Institute August
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v4i3.2655

The electricity grid protection system at Kualanamu International Airport is urgently needed. The purpose of protection in addition to maintaining the reliability and stability of the electric power system also functions to detect disturbances, prevent damage to equipment (equipment & networks), protect humans and minimize outages in the event of a system disturbance. flight safety operations, services to passengers, operations, and equipment work at Kualanamu Airport. Safety or protection settings are based on the characteristics of the protection installed in the distribution system, which greatly affects working time, from the protection security area if there is a failure in the main protection. determine the setting of the overcurrent relay against overcurrent disturbances that may occur due to short circuit faults. To simplify the calculation of the disturbance analysis, it is simulated using the Electric Transient and Analysis Program (ETAP) Power Station12.6 software. The relay protection that is used and set is the overcurrent relay at the Kualanamu Airport Medium Voltage Network Sub Station. This relay functions to protect fault currents against ground-phase, ground-phase, ground-phase, and 3-phase. The protection relay setting refers to the provisions in force at PLN, namely for the interruption time of the 20 kV network disturbance at the substation from the time of a disturbance to the extinction of the electric arc by the opening of the power circuit breaker (PMT) the feeder is: less than or equal to 400 milliseconds and for ground-phase short circuit faults NGR12 maximum disconnection time of 500 milliseconds, NGR40 maximum disconnection time of 1000 milliseconds.

The Influence of the Nagori-Owned Business Agency (BUMNag) Bah Lias on Community Income in Bah Lias Village, Kec. Bandar, Simalungun District Elidawaty Purba; Darwin Darwin; Taufik Parinduri
Budapest International Research and Critics Institute-Journal (BIRCI-Journal) Vol 4, No 2 (2021): Budapest International Research and Critics Institute May
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v4i2.1939

The village economy can increase if the income of the village community can increase, one of the efforts made by the order to increase the income of the rural community is through the Village Owned Enterprise or BUNDES. Nagori Bah Lias is one of the villages that has a village-owned enterprise called BUMNag BAH LIAS, the existence of BUMNAG Bah Lias has improved the economy of Nagori Bah Lias. Through BUMNAG Bah lias, 5 business units have been formed., from the The questionnaire was taken from 30 respondents, then analyzed using regression analysis, the contribution was still relatively small because the business unit was also still on a small scale. The results of the regression analysis show that the effect of BUMNag Bah Lias on ime is only 10.4% if there is an additional unit of labor. Based on the relationship between labor and opinion, it still shows low results, namely only 0.1 because the number of workers in BUMNag Bah Lias is relatively small and based on the coefficient of determination it is found that the effect of labor on BUMNaG Bah Lias is only 1%. From the research results it is suggested that the government invest in the potential of the village to add to other business units and, to socialize to the community the benefits of BUMNag. Thus, it is hoped that the presence of BUMNag Bah Lias will advance the economy of Nagori Bah Lias.

KEPEMIMPINAN BERBASIS DALIHAN NA TOLU DALAM SEKOLAH PENGGERAK: SEBUAH KAJIAN DESKRIPTIF Tobok Luhut Situmorang; Frans Hanaekan Rajagukguk; Darwin Darwin
Jurnal Education and Development Vol 10 No 2 (2022): Vol. 10 No. 2. 2022
Publisher : Institut Pendidikan Tapanuli Selatan

Tujuan dari penelitian ini adalah untuk memetakan persepsi guru-guru dan tenaga kependidikan mengenai model kepemimpinan yang berlandaskan kearifan lokal etnis Batak yakni Dalihan Na Tolu di sekolah penggerak. Penelitian dilakukan pada dua instansi pendidikan yakni UPTD SMP Negeri 1 Datuk Lima Puluh dan UPTD SMP Negeri 2 Medang Deras, Kabupaten Batu Bara, Sumatera Utara. Metode yang digunakan dalam penelitian ini adalah metode non eksperimen yaitu metode deskriptif dengan teknik survei. Terdapat 84 responden yang terdiri dari guru dan tenaga kependidikan dilibatkan dalam penelitian ini untuk memberikan persepsi mereka mengenai kepemimpinan kepala sekolah berbasis kearifan lokal Dalihan Na Tolu melalui angket tertutup. Hasil penelitian menunjukkan bahwa sebagian besar (lebih dari 85%) guru dan tenaga kependidikan memiliki respon yang positif terhadap kepemimpinan di kedua istansi tersebut. Kepala sekolah menerapkan prinsip-prinsip Dalihan Na Tolu dalam memimpin sekolah penggerak di Kabupaten Batubara. Persentase persepsi cenderung merata yang dinyatakan bahwa kepala sekolah merealisasikan prinsip Somba Marhula-hula, Elek Marboru, dan Manat Mardongan Tubu dalam kepemimpinan mereka di sekolah penggerak.

Pengembangan Metode Pemilah Kualitas Telur Bebek Berdasarkan Normal/Abnormal Berbasis Image Processing Nur Alam; Darwin darwin; usep firmansyah
Faktor Exacta Vol 11, No 4 (2018)
Publisher : LPPM

Abstrak. Hidup sehat merupakan salah satu program pemerintah untuk peningkatan taraf hidup masyarakat. Agar masyarakat hidup sehat maka salah satu program pemerintah adalah menjamin ketersediaan sumber gizi bagi masyarakat. Salah satu makanan yang bergizi tinggi adalah telur. Telur merupakan sumber protein yang banyak dikonsumsi masyarakat. Telur bebek merupakan jenis telur yang memiliki protein tinggi dan dapat dijadikan berbagai bahan dalam beberapa panganan dan juga obat. Telur bebek saat ini masih dibudidayakan dengan metode konvensional oleh petani. Oleh karena itu telur bebek perlu proses pemilahan kualitas secara cepat dan tepat. Metode yang tepat dalam pemilahan kualitas telur bebek berdasarkan normal/abnormal adalah dengan metode image processing. Dengan metode ini maka tidak perlu lagi telur bebek itu dilihat dengan cara tradisional yaitu diterawang dengan bantuan cahaya matahari atau lampu. Dengan metode image processing maka telur dapat dilihat dan dianalisa dengan bantuan kamera dan software. Metode ini memiliki tingkat keakuratan hingga 98%. Dari sepuluh sampel telur bebek yang diuji, didapat hasil bahwa antara hasil image processing dibandingkan dengan hasil dilihat langsung telur tersebut maka hasilnya sama dan akurat. Terdapat 8 butir telur bebek dengan kondisi normal dan 2 butir telur bebek abnormal. Dengan demikian proses pemilahan kualitas telur bebek dapat dilakukan dengan otomatis, cepat dan efektif.

Produksi Asam Laktat dari Fermentasi Limbah Cair Olahan Kelapa dengan Variasi Konsentrasi Inokulum Lactobacillus acidophilus Ratna Ratna; Ulfa Triovanta; Darwin Darwin
Jurnal Serambi Engineering Vol 5, No 4 (2020)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v5i4.2334

The aim of this research is to study the fermentation technique of coconut processed liquid waste by varying the inoculum concentration of Lactobacillus acidophilus bacteria for lactic acid production. This research was carried out in several steps, namely the first step was the inoculum cultivation process of Lactobacillus acidophilus bacteria, the second step was the fermentation process of coconut water with variations in the concentration of Lactobacillus acidophilus bacteria inoculum, namely 5%, 10% and 20%. Analysis of lactic acid products, pH, glucose, Total Dissolved Solid (TDS), Total Suspended Solid (TSS) and Volatile Suspended Solid (VSS). The variation in the concentration of Lactobacillus acidophilus bacteria inoculum 20% is the most optimum to produce total lactic acid for batch and continuous systems. The results of the correlation analysis for inoculum variations of 5%, 10% and 20% had a strong relationship with lactic acid production, decreased pH and decreased glucose levels. The greater the inoculum concentration, the greater the decrease in the TDS, TSS and VSS content.

THE ROLE OF SHARIA E-MONEY IN TRANSACTIONS OF MICRO, SMALL AND MEDIUM ENTERPRISES (MSMES) Sukiman Sukiman; Sugianto Sugianto; Darwin Darwin
Proceeding International Seminar of Islamic Studies INSIS 3 (February 2022)
Publisher : Proceeding International Seminar of Islamic Studies

Show Abstract | Download Original | Original Source | Check in Google Scholar

This research is a literature study that discusses the role of Sharia E-Money in Transactions of Micro, Small and Medium Enterprises (MSMEs). Referring to some of the literature that has been discussed previously, it is concluded that Islamic sharia principles through non-cash transactions (e-money) play an important role in moving the wheels of the Indonesian economy through the development and empowerment of MSMEs. Where it can make it easier for users to make transactions, so as to be able to strengthen MSMEs in an Islamic economic perspective by implementing non-cash payments (e-money) this has a positive impact on both MSME actors and users because it can help save expenses and also increase income. In addition, the Indonesian people, whose majority are Muslims, Of course this is a big opportunity in the development of a sharia-based economy in Indonesia. Because sharia e-money is not limited to Muslim users, it can also be used for non-Muslim people. In the end, the development of sharia e-money will increase the convenience of the public in financial transactions.Keywords: Transactions, Actors, MSMEs, E-Money, Sharia

Co-Authors , Rahima Br Purba Adicita, Yosef Ahmad Ridhay Ancer Martati Ndraha Anshah Silmi Afifah Arwin Arwin Aulia Rahman Bunyamin Bunyamin Darius Andana Haris Doni Molana Frans Hanaekan Rajagukguk Gita Prajati H Sulaiman Hendri Syah Hotmaida Sidabutar Indah Nandayani Jaya Hardi Jeanny Pragantha Mega Mutiara Sari Munirul Hady Nasrun Nasrun Norce Rupiasa Nur Alam PURBA, ELIDAWATY Putri Enzelina Nababan Ratna Ratna Ratna Ratna Rohana Rohana Safarin Zurimi Saloma Banjarnahor Sanjaya Sanjaya Sugianto Sugianto Sujan Yadi Sukiman Sukiman Suryawan, I Wayan Koko Suwarno Suwarno Syawal Gultom Taufik Parinduri Tengku Sheila Chairunisa Tobok Luhut Situmorang Ulfa Triovanta usep firmansyah Yan Azhari Yati Tuasamu Yuniarto Mudji Susatyo Yuniarto Mudjisusatyo

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