Articles

Desain Karakteristik Kapal Markas Untuk Operasi Pengamanan Perairan Perbatasan dan Dukungan Penanganan Pasca Bencana Alam Pada Masyarakat Pulau Terluar

Majalah Ilmiah Pengkajian Industri Vol 10, No 3 (2016): Majalah Ilmiah Pengkajian Industri
Publisher : BPPT

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Ditinjau dari segi kedaulatan dan pertahanan-keamanan nasional, keberadaan pulau-pulau terluar di perairan perbatasan di bagian utara Sulawesi Utara mempunyai arti strategis bagi Indonesia dan layak untuk diamankan. Di sisi lain. wilayah geografis Sulawesi Utara dengan beberapa gunung berapi dan perairan terbuka  menghadap ke samudra Pasifik, rawan terjadi bencana alam gempa dan Tsunami.  Secara konseptual strategis perlu dikaji kebutuhan sarana dukung transportasi - kapal untuk pengamanan pulau-pulau terluar serta untuk kesiagaan penanganan bencana alam bagi masyarakat wilayah perairan perbatasan. Karenanya pada kajian ini dilakukan studi disain prototip kapal markas yang dilengkapi bulbous-bow untuk mampu beroperasi sesuai karakteristik pada perairan perbatasan bergelombang tinggi, serta berfungsi sebagai sarana dukung operasional patroli pengamanan perairan perbatasan dan penanganan pasca bencana alam. Desain kapal markas panjang 66 m dengan daya 2x155 HP, kecepatan dinas 12,5 Knot telah diuji model di laboratorium hidrodinamika untuk kemampuan ship powering, maneuvring dan sea-keeping dengan hasil memenuhi ketentuan persyaratan  IMO

RELASI KEMAMPUAN BERPIKIR KRITIS DALAM KEMAMPUAN LITERASI SAINS PADA SISWA KELAS IV SEKOLAH DASAR

Sekolah Dasar: Kajian Teori dan Praktik Pendidikan Tahun 26 Nomor 1 Mei 2017
Publisher : Universitas Negeri Malang

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Abstract: This study aims at describing the effect of Creative Problem Solving (CPS) and Problem Posing method and the ability to think critically regarding science literacy. This research employed experimental treatment by the level of 2 x 2 design. The data of this research was analyzed using two paths the analysis of variance (ANOVA). The result of this research indicated four things, namely; (1) the ability of science literacy among groups of students who are taught using the CPS is higher than group of students taught using methods problem posing; (2) there is an interaction effect between the learning method and the critical thinking skills to the ability of science literacy; (3) the ability of scientific literacy among students with critical thinking skills CPS method is higher than students who treated using problem posing method; (4) the ability of scientific literacy among students with low critical thinking skills using CPS is lower than students using problem posing method. Keywords: CPS Method, Problem Posing, critical thinking, scientific literacy, elementary school.Abstrak: Penelitian ini bertujuan untuk mendeskripsikan pengaruh penerapan metode Creative Problem Solving (CPS) dan Problem Posing, serta kemampuan berpikir kritis terhadap literasi sains. Metode yang digunakan eksperimen dengan desain treatment by level 2 x 2. Teknik analsis varians dua jalur (ANAVA). Hasil dari penelitian ini terdiri dari empat hal yakni; (1) kemampuan literasi sains antar kelompok siswa yang diajar menggunakan metode CPS lebih tinggi dari kelompok siswayang diajar menggunakan metode problem posing; (2) terdapat pengaruh interaksi antara metode pembelajaran dengan kemampuan berpikir kritis terhadap kemampuan literasi sains; (3) kemampuan literasi sains antar siswa dengan kemampuan berpikir kritis tinggi yang diberikan metode CPS lebih tinggi dari siswa yang diperlakukan metode problem posing; (4) kemampuan literasi sains antar siswa dengan kemampuan berpikir kritis rendah yang diberikan CPS lebih rendah dari siswa yang diberikan perlakuan metode problem posing.Kata kunci: Metode CPS, Problem Posing,berpikir kritis, literasi sains, SD.

PEMANFAATAN KRIB UNTUK PENGGELONTORAN SEDIMEN PADA MUARA SUNGAI (STUDI KASUS MUARA SUNGAI JUWANA)

JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 4, Tahun 2013
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

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Sedimentation is often happen in low-ground area. Where the minimum slope of the river caused a low-velocity in river flow. A low-velocity flow made the particles of sand drownded to the river bed because of the gravity. Low-velocity flow also cause by the tide of sea. It is why sedimentation is happen in estuary.In Juwana river case, using SMS 8.1 software with RMA2 model, on the highest tide, with the quantity of river-flow is 100 m3/s gained 0,15 m/s of the river velocity. Based on Hjulstorm diagram (Sundborg modification), with this velocity of river flow, will cause a sediment of anykind sand-particle.  Placing 6 of 45x45 square piles, 2 m between each pile on formation and placed every 50 m along side the river and when the river quantity is 100 m3/s at the highest tide, give a significant additional speed. It will rising the velocity up between 0,14 to 0,17 m/s.  In other word, the velocity of Juwana river becomes 0,29 m/s to 0,32 m/s, which is high enough to flush a fine-sand sediment.

PERENCANAAN JARINGAN DISTRIBUSI AIR BERSIH PERUMNAS BANYUMANIK KOTA SEMARANG

JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 3, Tahun 2013
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

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With the increasing number of residents in the area Banyumanik, then the rank of the need for clean water needs of the population will also rise. Then the distribution network planning needs to be done to improve public services and Semarang in the current period and future. Development of water supply systems for the necessary existence of the concept of planning, designing, implementing, and operating a mature work by considering the social, economic, physical state area, and urban land use. This study aims to determine the water needs until 2021. Analysis of pressure and continuity performed with theoretical analysis and program Epanet as controls, customized to the needs of water every hour.mThe planning construction of water distribution networks in the form of the amount of data required and the conditions of residence as a basis for planning. Projections of future population growth can be calculated from the rate of population growth the last 5 years ie 2007 s / d 2011, obtained data from the Central Bureau and Statistics. And projected population growth is calculated using the geometric method, so that can be projected on the population in the city of Semarang Banyumanik Housing until 2021 amounted to 45.309 people. Need for clean water the planning criteria can be based on water table of DPU Human Settlements, the calculation of the population in 2021 Housing Banyumanik average - average of 98 liters / second and the need for clean water at the peak 147 liters / second. Analysis and planning of water distribution using the program Epanet 2.0. Results from analysis and planning, distribution network to run smoothly until the year 2021 it was replacement of existing piping system that is not enough with PVC pipe along the 715 m Ø250, Ø250 PVC pipe along the 610 m, pipe Ø250 PVC along 199 m. Total budget proposed for the development of water distribution networks in the National Housing Authority Banyumanik is Rp.1.028.000.000, 00. With long work for 24 weeks.

PERENCANAAN PEMBANGKIT LISTRIK TENAGA MINI HIDRO DI SUNGAI LOGAWA, KABUPATEN BANYUMAS

JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 2, Tahun 2013
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

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Electricity is a basic human need. Human activity will be disrupted if the availability of electrical energy is also affected. This condition is also currently being experienced by the people of Indonesia. There has been an energy crisis in some regions of Indonesia, particularly in Java - Bali where the area is the center of activity in Indonesia. This is indicated by the frequent occurrence of blackouts in rotation as in most cities in Indonesia. The crisis caused by an imbalance between  supply and demand of electricity usage. Meanwhile, the ability of the government, in this case the PLN in providing the electricity needs is very limited. Therefore, the government is encouraging private sectors and communities to participate in the production of alternative energy, one of which is the Mini Hydro Power Plant. Banyumas Regency has a potential river to build as Mini Hydro Power Plant. This mini hydro power plant will utilize the waterflow from the rivers. The electrical energy produced will be supplied to the Java – Bali interconnection network so that electricity supply can increase the Java – Bali capacity. In this  PLTMH  Logawa is planned to generate 616 kWh of power which can serve approximately 600 homes with the assumption that the usage of the power is about  900 watts per hours. It requires investment funds for the construction works amounting to Rp.25,265,787,700,-

ANALISIS KAPASITAS PENAMPANG BANJIR KANAL BARAT KOTA SEMARANG UNTUK PERENCANAAN PENGENDALIAN BANJIR

JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 1, Tahun 2013
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

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Overflow  in the West Floodway  is a natural event caused by inadequate river capacity to flow the existing discharge.Based on the analysis of hydrological West Floodway with the help of software HEC-HMS (Hydrologic Engineering Center-Hydrologic Modeling System) obtained discharge plan (Q50) of  951.9 m3/s.  The hydraulics analysis  was carried out by the help of software HEC-RAS (Hydrologic Engineering Center-River Analysis System)and the result is an overflow along the 8 km (WF 0-WF 97) in the West Floodway Region. To overcome these  problems, it is necessary to be taken a solution,  that is increasing river capacity. Based on existing field conditions  (limited space) then the plan is  using  2 type of river  profiles, there are at the downstream  river is used for single and double crosssection on the upstream, both is planning  using manning formula.

PERENCANAAN SISTEM DRAINASE PASAR JOHAR SEMARANG

JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 2, Tahun 2013
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

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As trade area which is located in the north of the Semarang City, Johar is an area prone to flood. Thats because the drainage canal superficiality clog due to garbage, the channel capacity is not large enough and the pump capacity is not sufficient. Johar is at a height that is almost equal to the sea surface which land subsidence periodically, so as to Johar area, water flows through a drainage pump with Kali Semarang as an elongated catch. The method we used to handle the flood of Pasar Johar is by calculating the flood discharge, isolate the area around the elevation of the road which serves as a dike, enlarge the channel that is not enough, enlarge the channel that is not enough and made sluice in preparation if the pump can not operated. From the calculation, some channels have increased flow capacity. Type of partner channels with bony concrete / precast planned to increase the capacity of Existing stream channel is the channel type C with a width of 1000 mm and 1000 mm high channels. There are 5 channel capacity should be increased. To remove the water from the drainage channel used pumps which located in the drainage pump house. Pump house planned 3 units main pump installed and 1 unit reserved. Maximum discharge for each pump is  0.35 m3/second. Drainage channels connected to the house by using the channel pump. When only light rain occurred, simply lit one pump only. While in the event of heavy rain, so can lit two or three pumps. Thus the application of more efficient pump. Time waster channels streamed to Semarang with waste pipe from the pump drainage. Waste pipe is made with galvanized materials with elements lighter than steel and stainless steel. Based on the calculations, the total cost for the Design of  Johar Drainage System  is 8,471,009,500.00 rupiah.

PERENCANAAN SISTEM JARINGAN TAMBAK GARAM DI PEMONGKONG KABUPATEN LOMBOK TIMUR

JURNAL KARYA TEKNIK SIPIL Volume 3, Nomor 1, Tahun 2014
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Jerowaru Pemongkong village district of East Lombok, West Nusa Tenggara is one of the salt producing areas. Water systems that do not meet the technical standards causing the low production of salt. In efforts to increase production and quality, a need to increase salt production system by using a standard technical planning. In this plan, the planning standards used are salt production system in Korea is the ratio of the reservoir : evaporation area : crystallization area = 55 : 30 : 15, a water supply system with pumping and other buildings such as intake planning, channel and floodgates that refer to the Technical Irrigation Planning Standards. At the beginning of the planning is done making salt ponds plot layout, plan continued with dimensions and elevation intake structure, reservoir, evaporation area, crystallization area and the channel of a water carrier, so that the water supply can be guaranteed. From the study sites were sampled an area of 10.79 ha, gained 5.39 ha of reservoir, 3.24 ha of evaporation area and 1.62 ha of crystallization area. According to the criteria of the salt pond water depth according to the Ministry of Marine Affairs and Fisheries of the Republic of Indonesia, the water level in the reservoir is 50 cm, the water level in evaporation area is 30 cm, and the water level in crystallization area is 5 cm. The discharge of primary channel is 0,526 m3/sec, obtained from the analysis of the primary channel dimensions B = 1.50 m,  H = 0.75 m, while the discharge of secondary channel is 0.213 m3/sec, obtained from the analysis of channel dimensions secondary B = 1.00 m, H = 0.50 m. Discharge plan on the culvert at 0.669 m3/sec, obtained from the analysis of the culvert dimensions 1.50 m x 1.50 m. To maintain water supply continuity water pumps were used with capacity of 98.57 liters/sec. By using this system is expected to increase the productivity of salt + 90 tons/ha/year to + 150 tons/ha/year. The cost of manufacture new salt ponds in this area ranges from + Rp . 165,000,000.00 / ha.

Rehabilitasi Desain Bendung Tukuman Kali Dengkeng Cawas Kabupaten Klaten– Jawa Tengah

JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 1, Tahun 2013
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

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Tukuman Weir is a weir of Dengkeng Cawas River, Klaten Regency, Central Java. This weir got a severe damage due to the excessive discharge in December 1989. This caused the people around the weir irrigated their field by free intake. The problems discussed in this paper are 1) the damage of the weir overflow, and 2) the damage of the tail water. The aim of the research is to maximize the flow of water into the irrigation network that the need of irrigation water can be met properly to increase the income of farmers each year. This research uses the latest data which then is processed by using hydrological analysis as the basic of the next planning. Watershed (DAS) of Dengkeng River is 101, 157 km2 in large, with three rain stations: Gantiwarno, Kemudo and Ngelo. The calculation of flood discharge plan uses several methods. The chosen discharge is the result of the calculation using HSS Gama I method with return period of 100 years, then continued with Qdesign=110 m3/sec. The large of the irrigation area of Tukuman weir is 150 hectares, with 0.22 m3/sec water need. From the result of the balance sheet analysis, the need of water irrigation is fulfilled, even it is a surplus. The rehabilitation concept is combining the fixed and barrage, but keeping the elevation of the old weir overflow. The redesign of the weir dimension with the fixed weir, the elevation height of the overflow is +102.02 m.dpl, rounded overflow with effective width of 7.75 m. While for the motion overflow, the overflow elevation is +99.7 m.dpl as planned, with 5 doors and effective width of each is 2.5 m. the length of the floor to the weir face is 10.5 m as planned, and the tail water of USBR type III is chosen. The cost of the weir rehabilitation is Rp. 3,241,000,000 with time estimation is 20 weeks. Based on the calculation, it is obtained that there is surplus on the water need that might be considered using it for other needs, for instance, enlarging the irrigation area or fulfilling drinking water needs.

PERENCANAAN BANGUNAN PENGENDALI SEDIMEN DAERAH ALIRAN SUNGAI KREO KOTA SEMARANG

JURNAL KARYA TEKNIK SIPIL Volume 3, Nomor 2, Tahun 2014
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

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Kreo River is the part of Garang River which located in Semarang City and the area of this river is 61,059 km2. Kreo River is one of sedimentation contributor for Jatibarang Dam,  an estimated 387,33 Ton/Ha/Years sedimentation which enter in Jatibarang Dam are come from this river. One of the solution for the sedimentation and erosion problem in river is by developing building controller sedimentation or similar called check dam. From the calculation, check dam planned to have physical like as follows : the peak elevation of spillway  main dam in the elevation + 187,419 m with highly effective is  4 m and deepness of foundation is  2 m, wide of spillway main dam  obtained 45 m, with Q plan return period 100 years  to 216,475 m3/s, high of wings main dam  is 3 m at elevation  + 190,419 m with highly of  surveillance is 0,8 m, main dam construction use rubble stone masonry, elevation of peak spillway sub at + 185,419 m with highly obtained 2 m and deepness foundation until 2 m, sub dam construction use rubble stone masonry, the elevation of protection floor at +183,419 m with thickness until 1 m, the construction use rubble stone masonry.

Co-Authors Adi Setyo Christanto Aditya Yoga Kusuma Al Falah Ansar Ansar Anwar Eko Yulianto Apriadi Ali Ramadhan Arie Al Asyari Arif Wicaksono Arvie Narayana Aslina, Aslina Bachtiar Khoirom W., Bachtiar Khoirom Bachtiar Khoironi Wibowo Bahtiar Bahtiar Beni Cahyadi, Beni Dauly, Sayed Muhammad Dwi Kurniani Dwirgo Sahlinal, Dwirgo Dyah Mustika, Dyah Efrianti, Kumara Eka Savitri Gina Giftia Azmiana, Gina Giftia Gunawan Gunawan Gustav A Wattimena, Gustav A Hadiningsih, Chintriany Hardjo, Marhaen hardjono, Soegeng Hari Budieny Hari Nugroho Heri Kusmanto, Heri Hidayati, Wiwik Ika Mariska Insap Santoso, Insap Isnaini Isnaini Jati Widhiasmoro Jauhar, ST juliani dan, juliani Junaid, Muhammad Kodrat, Linda Koko Mulyanto Angkat, Koko Limardjo, Arief Monalisa Gherardini, Monalisa Muhammad Basri Munawir Munawir Novlentina Pasi, Novlentina Nur Intan, Nur Nurrahmat Nurrahmat Oktaviana Putri, Aisyah Paulus Insap Santosa Perdana Gutomo Putra Perkasa, Fajar Priyo Nugroho Parmantoro Pungky Dwi Saputra Rano Adiyoso Reza Juan Prakasa Ricky Darmawan Ridho Anggoro Rio Dessika Finanda Riskiana Djamin Rizky Amaliyah, Wa Ode Rodi Rodi, Rodi s, Sartini s, Syahrijuita Saefudin Nurhuda Salamun Salamun Saleh, Djuliati Samudro, Samudro Sedjawidada R Sedjawidada, Raden Senggo, Senggo Sirojuzilam, Sirjuzilam SUHARYANTO SUHARYANTO Surjono H Sutjahjo, Surjono H Sutarto Edhisono Suyono Suyono Tandi, Rahman Teguh Bharata Adji Ucu Cahyana, Ucu Vieka Aprilya Intanny, Vieka Aprilya Wahyu Dwi Wijayanto Wahyu, Wahyuni Wedy Jhonson Simanjuntak, Wedy Jhonson Yamin, Muh Nur Yuningsih Yuningsih Yunus Jonatan