Portal E-Journal Politeknik Negeri Bengkalis
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    ANALISIS PERBANDINGAN PENGUJIAN TURNING CIRCLE ANTARA RUDDER KONVENSIONAL DENGAN RUDDER JENIS FISHTAIL PADA MODEL KAPAL BARGE DENGAN METODE OPEN FREE RUNNING MODEL TEST

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    Turning circle adalah salah satu uji yang harus dipenuhi oleh kapal dalam menentukan kemampuan manuvernya selama berlayar. Penelitian ini bertujuan untuk mengetahui perbandingan nilai tactical diameter  saat proses turning circle dari penggunaan model rudder konvensional dan rudder fishtail. Metode yang digunakan pada penelitian ini adalah open free running test. Untuk hal tersebut, dibuat sebuah model kapal yang dilengkapi dengan sistem propulsi dan GPS. Selama eksperimen, kapal dijalankan dengan putaran propulsi yang tetap dan dibelokan menggunakan rudder dengan sudut belok konstan sementara posisi kapal terus menerus disimpan menggunakan GPS. Metode yang digunakan yakni metode eksperimen dengan memvariasikan kecepatan yaitu sebesar 1 mph, 1,5 mph serta 2 mph dengan masing-masing dari kecepatan itu menggunakan  variasi sudut belok yang berbeda pula sebesar 10°, 15°, dan 35°. Turning circle dibuat menggunakan AutoCAD berdasarkan hasil test. Analisis menunjukan bahwa rudder fishtail memiliki tactical diameter yang lebih kecil, yaitu sekitar 18% lebih kecil dibandingkan rudder konvensional

    CODE MIXING USED BY THE TEACHERS OF LPAM ENGLISH COURSE

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    This research discuss about Code Mixing Used by Teacher of LPAM English Course in the Teaching Learning process. This research aims to  find out the type of code-mixing, and the reason of using code-mixing. The theory used is Hoffman‟s theory about Code Mixing. The data were analyzed using descriptive method. The researcher used observation and interview as the instruments to find out the data. The findings showed that there were three types of code-mixing used by the teachers, they were Intra Sentential Code-Mixing, intra lexical code mixing and Involving Change of Pronunciation, and the reason of using code-mixing were Quoting Somebody Else, Interjection, Repetition Used for Clarification and Real Lexical Need. Â

    Analysis of Millennial Purchase Intention Using Modified UTAUT2 in Yogyakarta City

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    The purpose of this study was to analyse the effect of hedonic motivation and online purchasing habits on online purchase intentions and the effect of habitual mediation on hedonic motivation and online purchase intentions by Millennial. The research method used the AMOS path analysis to 400 students at the Universitas Sarjanawiyata Tamansiswa, Yogyakarta. The results showed that all hypotheses were accepted except hedonic motivation towards online purchase intentions, while habitual mediation of hedonic motivation and online purchase intentions was accepted, thus strengthening this mediation relationship. Thus, it can be concluded that Millennial like the online shopping experience because it is considered fun and amusing and can lead to habitual behaviour. The implication for online purchasing application managers should not only prioritize short-term (momentary) relationships but prioritize long-term relationships therefore consumers become accustomed to using the application. The author's recommendation for managers is to always be creative and innovative, such as creating an attractive and profitable membership program. This research is limited to the number and distribution area of the sample and does not specifically refer to a particular application. Suggestions for further research include the impact of social relationships and the facilitating conditions applied to online purchase intentions

    Customers Awareness on Green-Based Practicess Empirical Study on Service Industries In Indonesia

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    Current research is aimed at exploring the consequences of green based implementation in service industries in Indonesia. This study postulated eight hypotheses. A-survey questionnaire-based was used to collect data from Indonesia services industries, this study use the information multi-sources, data such as opinions, ideas, attitude, experiences, individual and group characters are becoming research subjects.  Empirical model with five exogenous variables and one endogenous required 490 samples with 27 parameters. Determining sampling measurement, Proportional samples was taken on service industries in Indonesia. Purposive sampling with non-probability sampling or judgmental was deployed to gain the data. SEM With Amos 24 statistical software was used to analyze data. Statistical outputs demonstrated that seven hypotheses proposed were accepted but the impact of green image on green purchase intention was rejecte

    Perancangan dan Implementasi Website Logo Konseling Sebagai Media Konseling Bagi Mahasiswa

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    Fakta berbahaya yang memotivasi penelitian ini meliputi kekerasan fisik, psikis dan seksual pada mahasiswa Universitas Kristen Satya Wacana. Hal ini menyebabkan mahasiswa menjadi stress, depresi, berperilaku negatif dan merasa tidak layak dikasihi dan dicintai. Banyak mahasiswa yang tidak berani untuk melakukan konseling dikarenakan perasaan takut dan malu ketika bertemu tatap muka secara langsung dengan konselor. Penelitian ini menghasilkan situs www.logokonseling.com yang dikembangkan dari teknologi HTML5, yang terdiri dari fitur interaktif berupa layanan synchronous, asynchronous dan fitur non interaktif berupa layanan self help. Website konseling ini mencoba menjembatani ruang sehingga konseli dan konselor, baik dengan tatap muka secara online ataupun tidak dengan tatap muka. Hasil uji coba terhadap mahasiswa di Universitas Kristen Satya Wacana, membuktikan website logo konseling layak digunakan karena bermanfaat memperbaiki low spiritual self-esteem mahasiswa dari kepribadian yang buruk dan terpuruk ke perilaku positif dan konstruktif

    KLARIFIKASI KEMATANGAN BUAH NANAS DENGAN RUANG WARNA HUE SATURATION INTENSITY (HSI)

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    Pineapple fruit is included in the type of tropical fruit, which is quite popular because it contains a lot of Vitamin C, which is quite high. Pineapple is a local fruit in the Kampar area, this fruit can be consumed directly and become other local processed products. Therefore, the quality of pineapple ripeness must be maintained. The problem that occurs at this time is that the pineapple fruit selection process is still done manually, by looking at it visually, so mistakes can occur in the process of clarifying pineapple fruit identification according to standards. Therefore, it is necessary to research the ripeness of pineapples using the Color Space Algorithm Hue Saturation Intensity (HIS). The variables to be input are based on photos of ripe, half ripe, and raw pineapples using a smartphone camera or DSLR camera with a minimum resolution of 8 MP. Clarifying the results with image processing and Hue Saturation Intensity (HIS) transformation has an accuracy rate of 80% for the 20 image test data. So that the expected results can help pineapple farmers in detecting the level of maturity of pineapple fruit, which is difficult, can minimize errors in determining the ripeness of pineapple frui

    Perancangan Instalasi Listrik Hybrid Menggunakan Sumber Jaringan Listrik PLN dan Pembangkit Listrik Tenaga Surya Pada Bangunan Gedung Sekolah SMPN 7 Kota Tarakan

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    Perancangan instalasi listrik pada bangunan gedung sekolah SMPN 7 kota tarakan menghasilkan total daya dari bangunan lantai 1,2 dan 3 sebesar 53,219 kW dengan kapasitas MCCB utama pada panel MDP sebesar 125 A. Pada setiap lantai terdiri dari 3 fasa R,S,T yang terhubung pada panel pembagi beban SDP. Luas penampang kabel yang digunakan adalah 16  pada MCCB utama panel MDP, kemudian 4  ke panel SDP dan 2,5  dari panel SDP menuju ke masing-masing beban instalasi. Pada nilai grounding instalasi didapatkan hasil 2 ohm. Pada perancangan PLTS hybrid akan menanggung beban instalasi penerangan gedung lantai 1 2 dan 3 sebesar 23,376 kW. Dengan TCF array surya 98 % dan  seluas 200,88  dengan jumlah modul surya berkapasitas 340  sebanyak 104 modul dan daya yang dibangkitkan sebesar 35133,91 .Jumlah dan kapasitas SCC yang digunakan adalah 7 buah SCC 100 A. Sedangkan kapasitas dan jumlah baterai adalah 104 baterai ukuran 2 V 1000 Ah. Dengan kapasitas inverter sebesar 30 kW dan Kemiringan array surya pada lokasi penelitian didapatkan maksimum 20,45°

    Pemetaaan Durasi Injeksi Dengan Metode Maximum Best Torque (MBT) Pada Mesin Otto 1 Silinder 4 Langkah Berbahan Bakar Bioetanol 85% (E85)

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    Penggunaan bahan bakar bioethanol dalam kosentrasi tinggi membutuhkan modifiukasi pada beberapa parameter mesin. Karena bioethanol memliki perbedaan karakteristik yang cukup banyak dengan kuat dengan gasoline. Salah satu modifikasi yang bisa dilakukan adalah dengan menambah durasi injeksi bahan bakar. Tujuan penelitian ini adalah untuk mendapatkan durasi injeksi yang optimal pada setiap putaran mesin otto 1 silinder 4 langkah berbahan bakar E85 dengan metode maximum best torque (MBT) . Dari hasil penelitian didapatkan durasi injeksi yang optimal pada putaran mesin 2000 sampai 3000 RPM adalah 200%, pada putaran  mesin 5000 sampai 6000 RPM adalah 175%, dan pada putaran mesin 7000 sampai 8000 RPM adalah 150%.The use of bioethanol fuel in high concentrations requires modification of several engine parameters. Because bioethanol has quite a lot of characteristic differences with gasoline. One modification that can be done is to increase the duration of fuel injection. The purpose of this study was to obtain the optimal injection duration at each revolution of the otto 1 cylinder 4 stroke engine with E85 fuel with the maximum best torque (MBT) method. From the research results, the optimal injection duration at engine speed of 2000 to 3000 RPM is 200%, at engine speed of 5000 to 6000 RPM is 175%, and at engine speed of 7000 to 8000 RPM is 150%. Kata kunci:  E85, Bioetnaol 85%, Mesin Otto 1 silider

    Pendamping Teknis Dalam Mendirikan Pengelolaan Air Minum di Desan Bantan Tua

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    AbstrakAir memiliki manfaat lain yang sangat dibutuhkan untuk menunjang kehidupan bagi makhluk hidup. kualitas air dapat mempengaruhi kesehatan dan kehidupan sehari-hari. Berdasarkan kondisi fisik syarat air yang sehat dan layak konsumsi haruslah bening atau jernih, tidak meninggalkan endapan, tidak berbau, tidak berasa (tawar), dan memiliki suhu di bawah suhu udara luar atau suhu ruang, yakni antara 10-25 derajat Celcius. Dalam air pasti mengadung Power of hydrogen atau disingkat pH dimana pH adalah ukuran untuk menilai tingkat keasaman atau kebasaan suatu cairan. Skalanya dari angka 1 hingga 14. Standar pH air minum yang dinilai baik untuk kesehatan adalah antara 6,5 dan 8,5. Untuk menjamin kualitas air tesebut tim pelaksana pengabdian melakukan pengawasan terhadap komponen-komponen yang ada di tempat pengelolaan air minum di desa bantan tua. Pengawasan tersebut untuk menjamin bahwa semua peralatan dan perlengkapan sistem instalasi penyulingan air mulai dari sumber air menuju ke tangki penyulingan awal kemudian ke tempat penyulingan akhir hingga sampai ke tempat pengisian air ke gallon untuk di konsumsi oleh masyarakat. Kata Kunci:  Air, pH, sistem instalasiAbstract Water has other benefits that are needed to support life for living things. Water quality can affect health and daily life. Based on the physical conditions, water conditions that are healthy and fit for consumption must be clear, leave no sediment, odorless, tasteless  and have a temperature below the outside air temperature or room temperature, which is between 10-25 degrees Celsius. In water must contain Power of hydrogen or abbreviated as pH where pH is a measure to assess the level of acidity or alkalinity of a liquid. The scale is from 1 to 14. The standard pH for drinking water that is considered good for health is between 6.5 and 8.5. To ensure the quality of the water, the service implementing team supervises the components in the drinking water management area in Bantan Tua village. The supervision is to ensure that all equipment and supplies of the water distillation system, starting from the water source to the initial distillation tank, then to the final distillation site, to the point where water is filled to gallons for consumption by the public. Keywords:  Water, pH, Installation syste

    Pemodelan Matematis dari Sifat Fisis Aliran Fluida pada Saluran Pipa Menggunakan Metode Beda Hingga 2 Dimensi

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    The piping system is used as a fluid transfer that is in the form of gas or liquid. In fluid flow it depends on pressure and velocity. Mathematical depiction of fluid can be seen from a straight line pattern. These patterns will form a corresponding flow nets. As a depiction of fluid flow in accordance with the shape of the pipe in the piping system and its velocity, it can be done by several methods, one of which is the finite difference method, this method includes mathematical and physical methods, where mathematical modeling can explain the physical properties of a fluid in a pipe. From this research, two variations of pipe shape were obtained, namely the straight pipe shape and the widening pipe shape, from the results obtained. That the fluid flow equation can be visualized in a mathematical way from the physical equation in a fluid

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