638 research outputs found

    Adjustment of the basin-scale circulation at 26 degrees N to variations in Gulf Stream, deep western boundary current and Ekman transports as observed by the Rapid array

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    The Rapid instrument array across the Atlantic Ocean along 26 degrees N provides unprecedented monitoring of the basin-scale circulation. A unique feature of the Rapid array is the combination of full-depth moorings with instruments measuring temperature, salinity, pressure time series at many depths with co-located bottom pressure measurements so that dynamic pressure can be measured from surface to bottom. Bottom pressure measurements show a zonally uniform rise (and fall) of bottom pressure of 0.015 dbar on a 5 to 10 day time scale, suggesting that the Atlantic basin is filling and draining on a short time scale. After removing the zonally uniform bottom pressure fluctuations, bottom pressure variations at 4000 m depth against the western boundary compensate instantaneously for baroclinic fluctuations in the strength and structure of the deep western boundary current so there is no basin-scale mass imbalance resulting from variations in the deep western boundary current. After removing the mass compensating bottom pressure, residual bottom pressure fluctuations at the western boundary just east of the Bahamas balance variations in Gulf Stream transport. Again the compensation appears to be especially confined close to the western boundary. Thus, fluctuations in either Gulf Stream or deep western boundary current transports are compensated in a depth independent (barotropic) manner very close to the continental slope off the Bahamas. In contrast, compensation for variations in wind-driven surface Ekman transport appears to involve fluctuations in both western basin and eastern basin bottom pressures, though the bottom pressure difference fluctuations appear to be a factor of 3 too large, perhaps due to an inability to resolve small bottom pressure fluctuations after removal of larger zonal average, baroclinic, and Gulf Stream pressure components. For 4 tall moorings where time series dynamic height (geostrophic pressure) profiles can be estimated from sea surface to ocean bottom and bottom pressure can be added, there is no general correlation between surface dynamic height and bottom pressure. Dynamic height on each mooring is strongly correlated with sea surface height from satellite observations and the variability in both dynamic height and satellite sea surface height decrease sharply as the western boundary is approached

    Studi Kelayakan Desain Kapal Hisap Tambang

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    Feasibility study menjadi salah satu langkah penting diawal perencanaan pembangunan kapal. Karena dengan melakukan feasibility study maka akan didapatkan perhiutngan awal gaya-gaya yang akan bekerja pada badan kapal. Pada paper ini feasibility study dilakukan pada kapal jenis Bore Hole Mining (BHM). Kapal BHM ini diharapkan mampu beroperasi pada kedalaman 60 m. Pada paper ini feasibility study yang dibahas adalah analisa stabilitas kapal BHM dan tegangan geser yang dialami kapal BHM kondisi Loadcase Departure, Loadcase Full Load, Loadcase Half Load dan Loadcase Arrival. Dari hasil dari feasibility study yang dilakukan, maka dapat diambil kesimpulan kapal BHM tidak memenuhi standart yang ditetapkan dalam hal stabilitas pada berbagai kondisi loadcase dimana Angle of Minimum GZ kurang dari yang disyaratkan IMO pada 25 deg. Sedangkan untuk shear stress pada berbagai kondisi loadcase masih memenuhi kreteria yang ditetapkan BKI yaitu kurang dari 100MPa

    Pemodelan Numerik Cfd pada Lambung Torpedo

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    Torpedo pada umumnya berbentuk tabung yang memiliki sistem penggerak sendiri. Torpedo yang dianalisa ini merupakan perpaduan dari desain torpedo jenis MK-44 dan MK-46 menjadi sebuah desain baru yang diharapkan dapat memperoleh performa yang lebih optimal. Dengan menggunakan perangkat lunak berbasis numerik CFD dapat dianalisa efek hidrodinamika yang timbul pada torpedo seperti: distribusi tekanan yang terjadi pada lambung torpedo, arah aliran fluida saat torpedo bergerak, streamline desain torped

    Analisa Bending Stress pada Submerged Floating Tunnel

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    Perhitungan dengan pemodelan Submerged Floating Tunnel (SFT) dengan menggunakan perangkat lunak berbasis metode elemen hingga. Analisa struktur terowongan apung menggunakan prinsip kerja dengan mendiskripsikan seluruh beban (force) pada SFT berupa beban internal dan eksternal yang bekerja akan diperoleh momen reaksi yang terjadi sepanjang badan SFT, dengan mengetahui luas penampang melintang SFT maka dapat diperoleh bending stress di seluruh badan SFT.Keywords : submerged floating tunnel (SFT), bending stress, structural analysi

    Peran Dewan Pengawas Syariah dalam Melakukan Pengawasan terhadap Pelaksanaan Akad pada Lembaga Pembiayaan Syariah (Studi terhadap Fif Syariah Cabang Pontianak)

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    Federal International Finance Sharia (FIF Sharia) is a one of non-Islamic financial institutions which form of Limited Liability Company and in accordance with applicable regulations FIF Sharia is also have the Sharia Supervisory Board as well as the completeness of its operations to ensure the performance of Islamic finance company is run in accordance with Islamic principles . To view and to determine the extent the performance of the Sharia Supervisory Board in overseeing the implementation of the agreement in FIF Syaraiah, it is necessary to research on "SHARIA SUPERVISORY BOARD ROLE IN TAKING CONTROL OF IMPLEMENTATION OF ISLAMIC FINANCING INSTITUTIONS Akad (FIF Against Sharia Studies Branch Pontianak)".Two issues raised is how the role and what barriers Sharia Supervisory Board in monitoring the implementation of the agreement on financial institutions FIF Syariah.This study is specifically aimed to reveal and analyze the role and function of the Sharia Supervisory Board as well as to identify factors inhibiting the Sharia Supervisory Board in overseeing the implementation of the agreement on financial institutions FIF Sharia.The research method uses yuridical emperical, ie the method used to solve legal problems through secondary data first, then proceed to conduct primary research on the data by field research.The results of research on the role of the Sharia Supervisory Board in monitoring the implementation of the agreement on financial institutions FIF Sharia Branch Pontianak, that the Sharia Supervisory Board has been instrumental in monitoring the implementation of the agreement on the financing institutions FIF Sharia but supervision carried Sharia Supervisory Board is still less than optimal because only indirect supervision by studying the reports alone. Sharia Supervisory Board never went to the field as a result of the Sharia Supervisory Board can not monitor the actual implementation of the agreement on the ground.The obstacles faced by the Board in monitoring the implementation of the agreement on financial institutions FIF Sharia is, more due to the Sharia Supervisory Board personnel who have concurrent positions in several Islamic financial institutions, a very limited number of personnel and is in the central office, as well as the quality of the source human Sharia Supervisory Board and other devices are less understanding of Islamic economics because it is not derived from the sharia economic academia.2Increasing the role of the Sharia Supervisory Board should continue to be done and not merely perform monitoring tasks but also able to become an advisor in developing existing products FIF Sharia branch in Pontianak and regulations related parties of course is expected to facilitate the Sharia Supervisory Board in minimizing obstacles to supervise the implementation of the agreement in FIF Shari

    Oil Palm Empty Bunches Bioconversion Using Trichoderma sp. and Black Soldier Fly Larvae As Poultry Feed Composition

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    Empty Fruit Bunches (EFB) is palm oil industry waste which has very large volume compared with another commodity of agro-industry waste in Indonesia. Trichoderma sp. and Larva Black Soldier Fly (BSF) with bioconversion method can be used as probelem resolve of EFB. The EFB material was obtained from Palm Oil Factory in Banten. EFB was researched in Indonesian Ornamental Fish Culture Research Institute in Depok and the result test was taken at the Laboratory of Animal Science and Technology of Bogor Agricultural University. The percentage of Trichoderma sp. fermentation (5%, 10% and 20% ) affected EFB palatability of BSF larvae and the fermented EFB with 10 % of Trichoderma sp. has a feasibility to be used as medium of BSF larvae with yield of 73.28 gram on day 4 th from the initial weight of mini larvae BSF 5 grams. At the bioconversion stage using BSF larvae with a dose of 10% Trichoderma sp. (5 gram, 15 gram and 25 gram) was obtained significant result on the initial weight of mini larvae 5 gram to 230.34 gram from fermented EFB weight of 550 gram on day 8th  , so that the average yield of average larvae was obtained By 39%. Result of proximate test of larvae on dry condition 100% obtained crude protein content (PK) 35.40 - 42.31% and crude fats (LK) 3.33 – 36.41%. Therefore, by using this test result, it will be possible to be used as poultry feed ingredient candidate in the future

    Socioeconomic position, John Henryism, and incidence of acute myocardial infarction in Finnish men

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    Previous cross-sectional studies examining whether John Henryism (JH), or high-effort coping with socioeconomic adversity, potentiates the inverse association between socioeconomic position (SEP) and cardiovascular health have focused mainly on hypertension in African Americans. We conducted the first longitudinal test of this hypothesis on incident acute myocardial infarction (AMI) using data from the Kuopio Ischemic Heart Disease Risk Factor Study in Finland (N = 1405 men, 42-60 years). We hypothesized that the expected inverse gradient between SEP and AMI risk would be stronger for men scoring high on JH than for those scoring low. John Henryism was measured by a Finnish version of the JH Scale for Active Coping. Four different measures of SEP were used: childhood SEP, education, income, and occupation. AMI hazard ratios (HR) by SEP and JH were estimated using COX proportional hazard models, before and after adjustment for study covariates. 205 cases of AMI occurred over a median of 14.9 years. Men employed in lower rank (farmer, blue-collar) occupations who scored high on JH had significantly higher age-adjusted risks of AMI than men in higher rank (white-collar) occupations (HR = 3.14, 95% CI: 1.65-5.98 for blue collar; HR = 2.33, 95% Cl: 1.04-5.22 for farmers) who also scored high on JH. No socioeconomic differences in AMI were observed for men who scored low on JH (HR = 136, 95% CI: 0.74 2.47 for blue collar; HR = 0.93, 95% CI: 0.59-1.48 for farmers; p = 0.002 for the SEP x JH interaction). These findings persisted after adjustment for sociodemographic, behavioral, and biological factors. Results for other SEP measures were in the same direction, but did not reach statistical significance. Repetitive high-effort coping with adversity (John Henryism) was independently associated with increased risk for AMI in Finnish men, underscoring the potential relevance of the John Henryism hypothesis to CVD outcomes other than hypertension and to populations other than African Americans. (C) 2016 Published by Elsevier Ltd.Peer reviewe

    Implementasi pembelajaran PAI dan dampaknya terhadap sikap spiritual dan sosial peserta didik sekolah menengah pertama : Penelitian di SMP PGII 1 dan 2 Kota Bandung

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    Tujuan Pendidikan Agama Islam di Sekolah Menengah Pertama untuk menumbuhkan dan meningkatkan keimanan, ketakwaan, serta ahlak mulia melalui pemberian pengetahuan, penghayatan, pengalaman, dan pengamalan ajaran Islam sehingga menjadi muslim yang terus berkembang dalam kehidupan pribadi, bermasyarakat, berbangsa dan bernegara. Dalam mencapai tujuan tersebut dibutuhkan proses pembelajaran yang efektif dan efesien. Pencapaian tujuan tersebut salah satunya melaui implementasi pembelajaran PAI yang membutuhkan proses secara konsisten. SMP PGII 1 dan 2 Kota Bandung merupakan lembaga pendidikan yang dalam proses pembelajarannya menanamkan sikap spiritual dan sosial untuk memperkuat aqidah pada peserta didik. Penelitian ini bertujuan untuk mengidentifikasi implementasi pembelajaran PAI dan dampaknya dalam membina sikap spiritual dan sosial peserta didik, secara kualitatif maupun kuantitatif. Pendekatan yang digunakan dalam penelitian ini adalah Mixed Methods Research yakni penelitian yang mengkombinasikan antara metode penelitian kuantitatif dan kualitatif, dengan model concurrent embedded (kombinasi campuran tidak berimbang). Desain ini mengkombinasikan penggunaan metode penelitian kualitatif dan kuantitatif secara simultan, tetapi presentase metodenya berbeda. Pada model ini, ada metode primer (untuk memperoleh data utama) dan skunder (untuk mendukung data yang diperoleh dari metode primer). Responden penelitian adalah peserta didik SMP PGII 1 dan 2 sebanyak 142 orang. Hasil penelitian menunjukkan bahwa: (1) Program pembelajarn PAI untuk membina peserta didik di SMP PGII 1 dan 2 Kota Bandung mencakup; kegiatan tahunan, semesteran, bulanan, mingguan, harian, dan pembiasaan. (2) Proses pembelajaran dilaksanakan melalui kegiatan intrakurikuler dan ekstrakurikuler, (3) Evaluasi pembelajaran dilakukan berdasarkan standar Kemendikbud, yaitu; a) penilaian autentik, b) penilaian acuan kriteria, dan c) pelaporan hasil pembelajaran. (4) Implementasi pembelajaran SMP PGII 1 lebih baik dibandingkan dengan SMP PGII 2 berdasarkan rataan skor atau nilai yang diperoleh peserta didik. (5) Dampak implementasi pembelajaran menunjukkan semakin meningkatnya semangat peserta didik dalam melaksanaan ibadah wajib maupun sunnah, membaiknya akhlak pada saat di kelas, dilingkungan sekolah dan di masyarakat. (6) Faktor pendukung; pendidik yang berlatarbelakang PAI, sikap peserta didik yang antusias dalam belajar, format penilaian sudah tersedia untuk melakukan evaluasi, sekolah mengadakan pelatihan tentang penilaian sikap spiritual dan sosial. Faktor pengahambat; waktu yang tersedia dalam pembelajaran PAI sangat terbatas, belum ada laboratorium dan instrument evaluasi terlalu banyak

    Perbandingan Metode Regresi Logistik Biner Dan Metode Backpropagation Dalam Menentukan Model Terbaik Untuk Klasifikasi Pengguna Program Keluarga Berencana

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    Indonesia is one of the highest population density in the world has high birth level. One of the regulation to get the population density lower than before that is used by Government is Family Planning Program. On the reality, not all of the productive age join this program. The method is Binary Logistic Regression and Backpropagation. The predictor variables that is researched are husband's age, wife's age, age of the last child, count of children, husband's education, wife's education, husband's job, wife's job and the level of family prosperity. The aim of the research is to compare the classification accuracy between Binary Logistic Regression and Backpropagation. The result of the research by binary logistic regression method, shows the variables that affect the status of KB user is age of the last child and wife's education with the classification accuracy are 66.98%, and the classification accuracy of Backpropagation are 67,30%. The conclution based on the research that is the Backpropagation is better than Binary Logistic Regression when classification the status of KB user in Semarang on March 2013 until Januari 2014
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