Assessment of building reliability in the Gedung Kuliah Bersama (GKB) of State Polytechnic Fakfak West Papua

The engineer must pay attention to strength, comfort, frugality, and impact on the environment in the building planning both in multi-storey or non-storey. Those aspects must be carefully planned and taken into a capable management system in it and to comply the comfort aspect in the building, hence disaster risk management such as fire prevention is needed. The purpose of this research is to evaluate the fire prevention and control system based on Minister of Public Works Regulation No.26/PRT/M/2008 and Indonesian National Standart 03-6574-2001, analyze the building reliability, and provide alternative solutions for the fire disaster control system in the college building of Fakfak State Polytechnic. The result of check list observation showed the average suitability was . The calculation result of Value of the Building Safety System Components using the Pd-T-11-2005-c guideline based on Analytical Hierarchy Process (AHP) was 64.23 % < 80%.  It  was classified into GOOD ENOUGH. From the results, alternative solution that can be proposed for college building at Fakfak State Polytechnic is to establish fire prevention

RANCANG BANGUN MESIN PENCAMPUR KEDELAI DENGAN KAPANG (RAGI TEMPE) PADA INDUSTRI RUMAHAN DI DAERAH KOTA MATARAM

Kekalik Jaya adalah salah satu sentra produksi bahan olahan berupa tempe di wilayah Mataram. Pada pengolahannya secara umum masih menggunakan metode tradisional.Proses pembuatan tempe yang memegang bagian penting penentu mutu tempe adalah proses peragian tempe dengan kapang.Kualitas tempe dinilai  berdasarkan warna tempe, tingkat kepadatan tempe, sebaran kapang yang tumbuh menyelimuti tempe.Sehingga untuk menjaga nilai mutu tersebut, pencampuran ragi dengan kedelai perlu pengerjaan yang optimal guna menjaga kualitas tempe. Untuk tetap mempertahankan mutu tempe, para produsen perlu untuk diberikan pengenalan teknologi sederhana dalam proses produksi tempe berupa mesin pencampur. Selain usaha tempe, masyarakat Mataram juga menekuni usaha pengrajin besi, yang berada didaerah sandubaya Mataram. Dengan adanya desain alat ini dapat membantu para pengrajin semakin memiliki hubungan yang erat dengan pengusaha tempe sehingga perekonomian Mataram semakin meningkat antar sektor industrinya. Desain mesin ini menggunakan motor sebagai sumber penggerak, sehingga tabung silinder berputar. Tenaga dari motor ditransmisikan ke silinder oleh vanbelt. Silinder berputar dengan kecepatan tertentu, dengan sirip dalam yang mampu membolak-balikkan bahan hingga tercampur rata seiring dengan berputarnya silinder. Kata kunci: mesin pencampur, rancang bangun, temp

Techno-Economic Aspects of Production, Storage and Distribution of Ammonia

The cost of green ammonia is determined primarily by its production cost, but it is also influenced by the cost of distribution and storage. Production costs are a function of plant location, size, and whether the plant is islanded or semi-islanded, that is whether the power source is variable renewable energy (VRE) or grid electricity. Capital costs for a green ammonia plant consist of equipment for the production of hydrogen (electrolyzer) and nitrogen (air separation), ammonia synthesis (Haber–Bosch, compressors and separators) and storage. Operating costs are mainly due to power consumption. The electrolyzer dominates both capital and operating costs in the manufacture of green ammonia. Ammonia is stored in either pressurized or refrigerated vessels with the latter preferred for large scale storage. Distribution of ammonia may involve several transport modes depending on the location of the production and consumption sites. Inland transport can involve pipelines, trains, and trucks, and offshore shipping is generally done with medium, large or very large gas carrier vessels with refrigerated tanks. A case study to supply a fleet of 36 ultralarge container vessels (ULCVs) operating between the ports of Shanghai and Rotterdam is used to exemplify the combination of production, storage and transportation costs

Artificial turf field with warming : A study of the utilization time for a turf field with warming with different tube placements

For Skattkärr IF a turf field with warming has been projected to increase field’s utilization hours and to have a longer period for athletes to perform their activities outdoors. The technique chosen to heat the plan is a type of a geothermal heating system without a heat pump. The brine, which is water with 30% ethanol, collects heat from the borehole and discharges it to a coil in the field. There is at position 11 boreholes but it is planned to increase the number to 31, which is the design for the facility. The operating cost of the system consists of a pump. The heating cables, which are connected in parallel, consist of PVC tube and the total length is about 40 kilometers. The heating cables are 154 mm in plan, with a c/c distance of 200 mm. Forward and return line temperatures are 5.5°C and 2.5°C and the flow is 73m3/h. The purpose of this work is to explore how the placement of coils (laying depth and c/c distance) affect heat transport capability of the plan area, describe the utilization time that can be expected for the football field in Skattkärr and calculate the impact of the heating system on the football field utilization time . The goal of this work is to create a mathematical model using computer programs that describe the surface temperature over a year. For artificial turf pitch to be playable the surface temperature should be at least 0°C. The model whose task was to describe the surface temperature was built in the program Simulink, (a part of Matlab) and consisted of several descriptions of energy flows, amongst others: convection, radiation and evaporation. To describe the heat flow from the pipe to the surface, the program Comsol was used. Various heat transfer coefficients were calculated with different tube placements later used in Simulink. The results show that with the heating system, utilization hours increased from 4200 hours to 4800 hours per year. With a c/c distance of 150 mm and an installation depth of 100 mm, useful hours can be increased by another 400 hours. According to the model, a brine temperature of 40ºC is required to increase the utilization time up to 7000 hours per year, with a calculated electricity consumption of about 262 MWh/year. The sensitivity analysis performed on the material's thermal conductivity shows that the choice of material for similar heating systems is important and affects the heat flow from the pipe to the surface

Hubungan antara pengelolaan kelas dengan minat belajar siswa dalam bidangsetudi biologi di kelas lll Madrasah tsanawiah al-Ikhwaniyah Tangerang

Penelitian inil bertujuan untuk mendapatkan pengetahuan berdasarlcan data dan fakta yang benar dan dapat dipercaya tentang hubungan antara pengelolaan kelas dengan minat belajar siswa dalam bidang studi biologi. Metode yang dib'llllakan adalah metode survei dengan teknik korelasional Penelitian ini dilakukan di Madrasah Tsanawiyah AI-lkhwaniyah dengan mengambil populasi seluruh siswa kelas III. Teknik pengambilan sampeJ dalam penelitian uri menggunakan permtungan yang dikemukakan oleh Jalalludin Rahmat semngga diperoleh sampeI sebanyak 38 orang. Teknik pengumpulan dala diIakukan dengan menyebarkan angket yang terdiri dati dua variabel yaitu variabeI X (pengelolaan kelas) dan variabel Y (minat belajar siswa). Angket tersebut diberi skaring dan digunakau sebagai data kuantitatif. Masing-masing variabel dalam angket melllpakan pertanyaan yang telah valid dan reliabeI berdasarkan uji validitas item dan uji reabilitas. Teknik analisa data dalam penelitian Uri menggtmakan nunus korelasi product moment dan uji signifikartSi dengan menggunakan r label serta uji t. Sedangkan uji prasyarat penelitian mengb'llllakan uji nonnalitas dan uji homegenitas. Berdasarkan uji prasyarat analisa data diperoleh sampel yang berdistribusi normal dan sebaran sampel adalah homogen. Sedangkan melalJri teknik korelasi product moment diperoleh nilai fxy sebesar 0,566. setelall dikonsultasikan dengall tabel interpretasi sederhana diperoleh nilai hubungan yang cukup/sedang antara variabel X dengan variabel Y, sedangkan hasil konsultasi dengan r label dan Uji t temyata Ha diterima Ho ditolak. Hasil Penelitian yang penulis lakukan melluujukkan adanya hubuugan antara pengelolaan kelas dan minat belajar siswa dalam bidang studi biologi di kelas III Madrasah Tsanawiyah Al-lkhwaniyah, Tangerang

Stages of PPP and principal–agent conflicts : the Swedish water and sewerage sector

The focus of this article is on public–private partnerships (PPPs). The aim is to both theoretically and empirically illustrate PPP agency problems in four PPP stages, as well as to identify potentially relevant solutions to the agency problems. The study employed a longitudinal case study of one PPP in a municipality in southern Sweden. Through an analysis based on interviews, observations, and documents, the study illustrates a number of agency problems faced by PPPs and highlights the importance of resource allocation, stakeholder management, and the creation of a common identity in reducing these problems

PENGARUH PROMOSI DI MEDIA SOSIAL DAN GAYA HIDUP TERHADAP MINAT BELI DI TOKO ONLINE

This study aimed to examine the variable promotion on social media and lifestyle towards buying interest in online stores. The method of research used was associative research. The population in this study were all people who saw all respondents online shops in West Nusa Tenggara, the number of samples in this study was 100 respondents. The sampling technique used was the non-probability sampling method. The analysis used multiple linear regression analysis. The data analysis technique used the SPSS version 25,0 program. The results of this study indicated that the promotion variable on social media had no significant effect on consumer purchase interest with the t value smaller than the t table. That promotion on social media did not affect buying interest, lifestyle variables that had a significant and positive effect on buying interest in online indicated that lifestyle affected public buying interest in online stores.</jats:p