Study on hydrodynamics of fiberglass purse seiners made in several shipyards in North Sulawesi

2014 ◽  
Vol 2 (2) ◽  
pp. 48
Author(s):  
Melisa Masengi ◽  
K.W.A. Masengi ◽  
Heffry V. Dien
Keyword(s):  
Field Observation ◽  
Purse Seine ◽  
Hydrodynamic Characteristics ◽  
Observation Data ◽  
North Sulawesi ◽  
Field Observation Data ◽  
Technical Specifications ◽  
Descriptive Method ◽  
Bahasa Indonesia ◽  
Made In

Title (Bahasa Indonesia): Studi tentang hidrodinamis kapal pukat cincin fiberglass yang dibuat di beberapa galangan kapal di Sulawesi Utara Purse seiner, the technical specifications and movement of purse seine vessels affect the fishing operations, and therefore, both should be considered in purse seiner production. The purpose of this study was to compare the hydrodynamic characteristics of the fishing boats by using the application of Delftship software. This research used a descriptive method on the field observation data. The samples were three fiberglass purse seiners taken from several shipyards in North Sulawesi. Results found that the purse seiner from Tumumpa shipyard had good stability. Kapal Purse Seine, dengan karakter teknis dan model pergerakannya, mempengaruhi kegiatan operasi penangkapan ikan di laut. Karakter teknis dan pergerakan kapal ini hendaknya menjadi salah satu bahan pertimbangan dalam perencanaan pembuatan Purse Seiner. Tujuan penelitian ini adalah untuk membandingkan karakteristik hidrodinamis kapal pukat cincin dengan menggunakan aplikasi Delftship. Penelitian ini menggunakan metode deskriptif yang diperoleh dari pengambilan data langsung di lapangan. Sampel yang digunakan pada penelitian ini adalah tiga kapal pukat cincin fiberglass yang diambil pada beberapa galangan kapal di Sulawesi Utara. Hasil penelitian dari ketiga kapal yang dijadikan sampel ini menunjukkan bahwa kapal yang diambil di Tumumpa memiliki stabilitas yang baik.

scholarly journals ANALISIS TINGKAT PENDAPATAN MASYARAKAT NELAYAN SOMA PAJEKO DI KECAMATAN SALIBABU KABUPATEN KEPULAUAN TALAUD SULAWESI UTARA

2018 ◽  
Vol 6 (11) ◽  
Author(s):  
Siska Salatan ◽  
Victoria E.N. Manoppo ◽  
Suria Darwisito
Keyword(s):  
Secondary Data ◽  
Income Level ◽  
The Philippines ◽  
Economic Life ◽  
Purse Seine ◽  
Net Income ◽  
Community Group ◽  
North Sulawesi ◽  
Descriptive Method ◽  
Spatial Plan

AbstractTalaud Islands Regency includes maritime territory, 94.6% of which is waters directly adjacent to the Philippines and holds a variety of high economic living resources. In North Sulawesi Provincial Regulation Numbered 1/2017, article 12 concerning Zoning Plan of Coastal Zone and Small Islands of North Sulawesi Province 2017-2037, Talaud Islands Regency is designated as Integrated Marine and Fisheries Center Location of Talaud. It is located in Salibabu district, where Regional Regulation of Spatial Plan Numbered 1/2014 concerning Spatial Plan of Talaud Islands Regency for 2014-2034, Salibabu District is prioritized for Fishing Fisheries Regional Development and Management since its unutilized fisheries potential is still about 23,104 tons/year. In 2017, Salibabu district occupies the highest order for total fisheries production in Talaud Islands District. It was 702.3 tons or 11.79% of that in Talaud Islands Regency, 46.23% of which were gained from purse seines. Majority of the purse seine fishermen are those whose main livelihoods are fishermen and do not have other jobs. Fishing community is, in general, a relatively lagging community group socially, economically and culturally when compared with other community groups. The purse seine fishermen community in Salibabu district, in fact, still has mean income far below the minimum wage of Kabupaten Talaud, IDR. 1,500,000, -. The purse seine fisherman community in Salibabu district is still chained with poverty and backwardness. Therefore, there are needs for external intervention as an incentive to empower them in order to get out of the situation. This study used descriptive method, a method of studying the recent status of human groups, an object, a set of condition, a system of thinking or a class of events. Data collection consisted of primary and secondary data. It was done through in-depth interviews, filling questionnaires and literature studies. Respondents were purse seine fishermen communities in Salibabu district. Data analysis used descriptive method to know the socio-economic life of the communities and income formula to analyze the income level of fishermen purse seine. Results showed that mean net income in Salibabu district was approximately IDR 86,784,000/year for the purse seine owner and IDR.10,608,840/year for fishing crews, respectively, with main catches of skipjack tuna, mackerels, and scads. Keywords: Purse seine fisherman, Salibabu District and Income level of Fisherman AbstrakKabupaten Kepulauan Talaud termasuk wilayah bahari dimana 94,6% wilayahnya adalah perairan yang berbatasan langsung dengan negara Philipina dan memiliki sumberdaya hayati yang bernilai ekonomis tinggi. Dalam Peraturan Daerah Provinsi Sulawesi Utara No. 1 tahun 2017 pasal 12 tentang Rencana Zonasi Wilayah Pesisir dan Pulau-Pulau Kecil Provinsi Sulawesi Utara tahun 2017-2037, Kabupaten Kepulauan Talaud ditetapkan sebagai lokasi Sentra Kelautan dan Perikanan Terpadu. Lokasi tersebut terletak di Kecamatan Salibabu, dimana pada Perda RTRW (Rencana Tata Ruang Wilayah) No. 1 Tahun 2014 tentang Rencana Tata Ruang Wilayah Kab. Kepulauan Talaud Tahun 2014-2034, Kecamatan Salibabu diprioritaskan untuk Pengembangan dan Pengelolaan Kawasan Perikanan Tangkap karena potensi perikanan yang belum termanfaatkan ± 23.104 Ton/Tahun. Tahun 2017, Kecamatan Salibabu menempati urutan tertinggi untuk total produksi perikanan di Kabupaten Kepulauan Talaud. Total produksi perikanan Kecamatan Salibabu sebesar 702,3 ton atau 11,79 % dari keseluruhan produksi perikanan di Kabupaten Talaud. Dari total produksi tesebut 46,23 merupakan hasil produksi usaha soma pajeko. Mayoritas nelayan soma pajeko merupakan nelayan penuh yang mata pencaharian utamanya sebagai nelayan dan tidak memiliki pekerjaan lain. Masyarakat nelayan pada umumnya merupakan kelompok masyarakat yang relatif tertinggal secara sosial, ekonomi dan budaya bila dibandingkan dengan kelompok masyarakat lainnya. Demikian juga berlaku untuk masyarakat nelayan soma pajeko di Kecamatan Salibabu dimana penghasilan nelayan dibawah upah minimum Kabupaten kepulauan Talaud sebesar Rp. 1.500.000,-. Masyarkat nelayan soma pajeko di Kecamatan Salibabu masih terbelenggu oleh kemiskinan. Oleh karena itu dengan maksud bisa keluar dari kondisi tersebut perlu ada intervensi ekternal sebagai suatu dorongan untuk memberdayakan mereka.Penelitian ini menggunakan metode deskriptif, yaitu suatu metode dalam meneliti sekelompok manusia, suatu objek, suatu set kondisi, suatu system pemikiran ataupun suatu kelas peristiwa pada masa sekarang. Jenis data yang dikumpulkan terdiri dari data primer dan data sekunder. Pengumpulan data dilakukan melalui wawancara secara mendalam terhadap responden, pengisian kuesioner dan studi kepustakaan. Responden terdiri dari masyarakat nelayan soma pajeko di Kecamatan Salibabu. Analisis data menggunakan metode deskriptif untuk mengetahui kehidupan sosial ekonomi masyarakat dan analisis mengunakan rumus pendapatan digunakan untuk menganalisis tingkat pendapatan masyarakat nelayan soma pajeko.Hasil penelitian menunjukkan bahwa pendapatan bersih juragan soma pajeko di Kecamatan Salibabu rata- rata berkisar Rp86.784.000,-/tahun dan Rp. 10.608.840,-/tahun untuk pendapatan bersih masanae dengan hasil tangkapan utama berupa ikan Cakalang, Ikan Layang dan Ikan Tongkol.Kata kunci: Nelayan Soma Pajeko , Kecamatan Salibabu dan Tingkat Pendapatan

scholarly journals Developing a Reliability Model of CNC System under Limited Sample Data Based on Multisource Information Fusion

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Chong Peng ◽  
Yuzhen Cai ◽  
Guangpeng Liu ◽  
T. W. Liao
Keyword(s):  
Information Fusion ◽  
Field Observation ◽  
Prior Information ◽  
Small Sample ◽  
Numerical Control ◽  
Observation Data ◽  
Reliability Model ◽  
Cnc System ◽  
Reliability Models ◽  
Field Observation Data

The reliability of the computer numerical control (CNC) system affects its processing performance and is a major concern in the manufacturing industry today. However, existing reliability models to assess the reliability of the CNC system often exhibit relatively large errors due to inadequate treatment of small samples. In order to get around the constraint of limited lifetime failure data and take full advantage of existing reliability parameters in traditional reliability models, a multisource information fusion-based reliability model grounded on Bayesian inference is proposed to deal with the small sample size. The prior distributions are derived by using the probability encoding method and conjugate distribution based on the idea of multisource information fusion. Then, using the Jensen–Shannon divergence (JSD) to measure the similarity between prior information and field observation data, a constrained optimization problem is established to determine the respective weight of prior information and field observation data. Finally, by conducting the reliability analysis of repairable CNC systems, the validity of the proposed model and its prior distribution derivation method are verified.

scholarly journals Soil Mapping in Chongwe, Zambia by Digital Analysis of Landsat Data

2016 ◽  
Vol 8 (9) ◽  
pp. 152
Author(s):  
Chizumba Shepande ◽  
Marvin Bauer ◽  
Jay Bell ◽  
Victor Shitumbanuma
Keyword(s):  
Field Observation ◽  
Landsat Imagery ◽  
Soil Types ◽  
Observation Data ◽  
Digital Analysis ◽  
Landsat Data ◽  
Reasonable Accuracy ◽  
Landsat 7 ◽  
Field Observation Data ◽  
Semi Arid Region

<p>Designing a methodology for mapping and studying soils in a quick and inexpensive way is critical especially in developing countries like Zambia, which lack detailed soil surveys. Therefore, this study was conducted to determine the potential of Landsat 7 ETM+ data (Enhanced Thematic Mapper plus) in mapping soils in Chongwe, a semi-arid region in Zambia. In addition, the study attempted to establish how accurate spectral soil maps produced by digital analysis of Landsat data can be and how such maps compared with field observation data. Also, in situations where there was poor agreement between Landsat data and field observation data, possible causes of such discrepancies where determined.</p><p>A soil inventory of the Chongwe region of Zambia was prepared using computer-aided digital analysis of two Landsat 7 ETM+ satellite images acquired in the dry and rainy seasons to investigate the hypothesis that there is a relationship between Landsat spectral reflectance and certain soil types and that this relationship can be used to map soils with reasonable accuracy.</p><p>The study revealed that digital analysis of Landsat 7 ETM images has the capacity to map and delineate soil patterns with reasonable accuracy, especially when acquired during the dry season when there are long periods of cloud free skies, low soil moisture and minimal vegetation cover. The overall agreement between the Landsat classification and reference data was 72%, indicating a definite relationship between Landsat imagery and soil types.</p><p>In terms of soilscape boundary delineation, the Landsat derived map was had a higher level of agreement with field observations than the conventional soil map. In addition, the study showed that overall, upland areas have a better agreement with Landsat spectral data compared to lowland areas, probably due to the diverse origin of sediments and low spatial extent of most landforms in lowland areas.</p>

scholarly journals Impacts of the 2011 East Japan tsunami in the Papua region, Indonesia: field observation data and numerical analyses

2013 ◽  
Vol 194 (3) ◽  
pp. 1625-1639 ◽  
Author(s):  
Subandono Diposaptono ◽  
Abdul Muhari ◽  
Fumihiko Imamura ◽  
Shunichi Koshimura ◽  
Hideaki Yanagisawa
Keyword(s):  
Field Observation ◽  
Numerical Analyses ◽  
Observation Data ◽  
Field Observation Data

scholarly journals STUDY ON OFFSHORE WIND CHARACTERISTICS IN JAPANESE COASTAL REGION BASED ON FIELD OBSERVATION DATA

2011 ◽  
Vol 67 (2) ◽  
pp. I_961-I_966
Author(s):  
Toshihiko NAGAI ◽  
Koji KAWAGUCHI ◽  
YUTAKA YOSHIMURA ◽  
Kaiin MEIYO ◽  
Ryoichi TANIKAWA ◽  
...  
Keyword(s):  
Field Observation ◽  
Coastal Region ◽  
Offshore Wind ◽  
Observation Data ◽  
Field Observation Data ◽  
Wind Characteristics

Bicycle Safety Analysis at Intersections from Crowdsourced Data

2019 ◽  
Vol 2673 (4) ◽  
pp. 1-14 ◽  
Author(s):  
Moatz Saad ◽  
Mohamed Abdel-Aty ◽  
Jaeyoung Lee ◽  
Qing Cai
Keyword(s):  
Field Observation ◽  
Negative Binomial ◽  
Population Distribution ◽  
Safety Performance ◽  
Observation Data ◽  
Major Step ◽  
Bicycle Safety ◽  
Safety Performance Functions ◽  
Crowdsourced Data ◽  
Field Observation Data

Cycling is encouraged in countries around the world as an economic, energy efficient, and sustainable mode of transportation. Although there are many studies focusing on analyzing bicycle safety, they have limitations because of the shortage of bicycle exposure data. This study represents a major step forward in estimating safety performance functions for bicycle crashes at intersections by using crowdsourced data from STRAVA. Several adjustments in respect of the population distribution and field observations were made to overcome the disproportionate representation of the STRAVA data. The adjusted STRAVA data which include bicycle exposure information were used as input to develop safety performance functions. The functions are negative binomial models aimed at predicting frequencies of bicycle crashes at intersections. The developed model was compared with three counterparts: the model using the unadjusted STRAVA data, the model using the STRAVA data with field observation data adjustments only, and the model using the STRAVA data with adjusted population. The results revealed that the case of STRAVA data with both population and field observation data adjustments had the best performance in bicycle crash modeling. The results also addressed several key factors (e.g., signal control system, intersection size, bike lanes) which are associated with bicycle safety at intersections. Additionally, the safety-in-numbers effect was acknowledged when bicycle crash rates decreased as bicycle activities increased. The study concluded that crowdsourced data are a reliable source for exploring bicycle safety after the appropriate adjustments.

Optimizing the use of the docks in Ocean Fishing Port Bitung, North Sulawesi, Indonesia

2016 ◽  
Vol 4 (1) ◽  
pp. 17
Author(s):  
Iwan Hakim ◽  
K.W.A. Masengi ◽  
Alfret Luasunaung
Keyword(s):  
Good Condition ◽  
Reclaimed Land ◽  
North Sulawesi ◽  
Literature Reviews ◽  
Operational Criteria ◽  
Descriptive Method ◽  
Bahasa Indonesia

Title (Bahasa Indonesia): Pengoptimalan penggunaan dermaga di Pelabuhan Perikanan Samudera Bitung, Sulawesi Utara, Indonesia. This study was aimed to determine the basic and functional facilities conditions in the ocean fishing port of Bitung and analyze the level of utilization of basic and functional facilities. This research used a descriptive method, in which data were collected through observation, interviews, documentation, and literature reviews. Results indicated that the basic facilities, such as port, reclaimed land, docks 1 and 2, and the complex, were in good condition. The functional facilities were also good, so that the the fishing port of Bitung has met the requirements of technical and operational criteria for fisheries activities. Tujuan penelitian ini adalah untuk mengetahui kondisi fasilitas dasar dan fungsional yang ada di Pelabuhan Perikanan Samudera (PPS) Bitung dan menganalisis tingkat pemanfaatan fasilitas dasar dan fungsional yang ada di PPS Bitung. Penelitian ini menggunakan metode deskriptif di mana data dikumpulkan melalui observasi, wawancara, dokumentasi, dan studi pustaka. Dari hasil penelitian ini menunjukkan, bahwa fasilitas pokok yang terdiri dari lahan pelabuhan, lahan reklamasi, dermaga 1 dan 2, serta jalan komplek dalam kondisi baik dan fasilitas fungsional di PPS Bitung juga dalam kondisi baik, sehingga PPS Bitung sudah sesuai dengan kriteria teknis dan operasional dalam kegiatan perikanan.

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