检索结果-南通市图书馆

Hydrodynamic Performance of a newly-Designed Pelagic and Demersal Trawls Using Physical Modeling and Analytical Methods for Cameroonian Industrial Fisheries

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Marine Science 2023年第3期13卷 41-65页

作者： Tcham leopold Vanlie Maurice kontchou nyatchouba nsangue Bruno Thierry Abdou njifenjou njomoue Pandong Achille Laboratory of Energy Materials Modeling and Method (E3M) National Higher Polytechnic School of Douala University of Douala Douala Cameroon College of Marine Science Shanghai Ocean University Shanghai China

This study proposed the newly-designed Pelagic and demersal trawls for the fishing vessels operating in Cameroonian waters in pelagic and demersal fishing grounds. The engineering performances of both trawls were investigated using physical modelling method and analytical method based on the predicted equations. In a flume tank, a series of physical model tests based on Tauti’s law were performed to investigate the hydrodynamic and geometrical performances of both trawls and to assess the applicability of the analytical methods based on predicted equations. The results showed that in model scale, the working towing speed and door spread for the pelagic trawl were 3.5 knots and 1.85 m, respectively, and for the bottom trawl net they were 4.0 knots and 1.8 m. At that speed and door spread, the drag force, net opening height, and wing-end spread of the pelagic model trawl were 36.73 n, 0.89 m, and 0.86 m, respectively, and the swept area was 0.76 m2. Bottom trawl speed and door spread were 30.43 n, 0.38 m, and 0.45 m, respectively, and the swept area was 0.25 m2. The maximum difference between the experimental and analytical results of hydrodynamic performances was less than 56.22% and 41.45%, respectively, for pelagic and bottom trawls, the results of the geometrical performances obtained using predicted equations were close to the experimental results in the flume tank with a maximum relative error less than 12.85%. The newly developed pelagic and bottom trawls had advanced engineering performance for high catch efficiency and selectivity and could be used in commercial fishing operations in Cameroonian waters.

关键词： Cameroonian Waters Pelagic Trawl Bottom Trawl Engineering Performances Physical Model Test Analytical Methods Formatting

Ichthyofaunic Inventory and Fish Landings of Lom Pangar Hydropower Dam Reservoir in the Eastern Region of Cameroon

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Marine Science 2020年第4期10卷 245-259页

作者： Achille njomoue Pandong Bruno Thierry nyatchouba nsangue Ekmon Mbangue n’Souvi Kodjo Maurice Vanlie kontchou Asser Yoke Léopold Tcham Dieudonné Essola Micah Adekunle David Laboratory E3M National High Polytechnic School of Douala University of Douala Douala Cameroon College of Marine Science Shanghai Ocean University Shanghai China College of Economics and Management Shanghai Ocean University Shanghai China netherlands Development Organisation SNV Yaounde Cameroon College of Fisheries and Life Science Shanghai Ocean University Shanghai China

The Lom Pangar hydroelectric dam project located in the eastern region of Cameroon was implemented by Electricity Development Corporation (EDC). The impoundment of the Lom Pangar dam created a large reservoir with an area ~590 km2 and a useful storage capacity ~6 billion m3. Thereby, this impoundment has created favourable conditions for the proliferation of fishery resources. However, a fisheries assessment study based on fishing activities is essential to attain reliable information for implementing a management plan to achieve rational and sustainable exploitation. This study was carried out on the ichtyofaunic inventory and the assessment of fish landings in Lom Pangar hydroelectric dam reservoir from April 2016 to September 30, 2016. Three main groups of fishing gear have been identified, among which gillnets, traps and longlines occupy major fishing activities. Indeed, the spatial and landing sites surveies were conducted on species composition, size composition, and quantities of fish landed during the study period. Moreover, 37 species of fish divided into 16 families were found in seven different selected fish landing sites. Carp (Cyprinus carpio) was the major fish species abundantly caught by these fishing gears which accounted for 81.60% of the total catch, and the least species was sardine (Sardinella aurita). A total of 623,229 Kg of fish were landed which were dominated by those of the Wami landing site with 480,773 Kg representing 76.96% of the total landed catches. The smallest species caught was the white carp (7 cm) while the longest one was the catfish (71 cm). In addition, the species of fish in the breeding season are carp, catfish, viper fish and red tail.

关键词： Artisanal Fishing Gears Ictyofaunal Inventory Lom Pangar Hydropower Dam

不可逆电穿孔技术在不适合热消融治疗肝癌病人中的安全性及有效性评价:回顾性单中心研究

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2017年第6期 718-719页

作者： O.Sutter J.Calvo G.n'kontchou J.C.nault R.Ourabia P.nahon 李娜 Service de Radiologie de l ’H?pital Jean Verdier H?pi-taux universitaires Paris-Seine-Saint-Denis Assistance publique H?pi-taux de Paris

摘要目的评价不可逆电穿孔技术在不适合热消融治疗及无法手术的肝癌病人治疗中的安全性及有效性。材料与方法本研究得到伦理委员会批准,无需提供书面知情同意

关键词：电穿孔技术肝癌病人无进展生存不可逆有效性

Child-Pugh A级的肝硬化合并肝癌患者行射频消融术并行挽救性肝移植术后的存活率

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

肝脏 2012年第8期17卷 608-608页

作者： n'kontchou G 王雪莲李智伟

对于符合米兰标准的肝细胞癌患者而言，肝移植可能是最好的选择。然而，肝源的缺乏可能使得Child—PughA级合并肝癌的肝硬化患者将肝切除术或射频消融术作为一线治疗。

关键词：肝移植术后射频消融术肝癌患者肝硬化合并存活率肝硬化患者一线治疗肝切除术

维普期刊数据库

用测量肝脏硬度的方法选择有重度食管静脉曲张风险的肝硬化患者

在线全文

学校读者我要写书评

暂无评论

世界核心医学期刊文摘（胃肠病学分册） 2006年第12期2卷 52-52页

作者： Kazemi F. Kettaneh A. n'kontchou G. 张红凯 Hepatology Department Hpital Jean VerdierAPHPBondyFrance

Background/Aims:Periodic endoscopic screening for oesophageal varices is recommended in patients with cirrhosis,but might be limited to a subgroup of patients if a simple noninvasive test was available to select those at risk of ***:We studied in 165 patients with cirrhosis the relation between the presence of oesophageal varices assessed by endoscopy,and liver stiffness measurement by Fibroscan,a non-invasive parameter related to liver *** results were compared to those of other parameters reflecting portal hypertension,splenic size,platelet count,and platelet count/spleen size ***:Liver stiffness measurement was correlated to the grade of oesophageal varices(r = 0.6,p ness measurement were 0.84(95% CI:0.78-0.90) for the presence of oesophageal varices and 0.83(0.76-0.89) for varices grade ≥ *** stiffness measurement value nce of oesophageal varices grade ≥ II(Se:84%,PPV:47%,nPV:93%) .Conclusions:Liver stiffness measurement allows to predict the presence of large oesophageal varices in patients with cirrhosis,and may help to select patients for endoscopic screening.

关键词：门脉高压肝纤维化曲张程度硬度测量内镜检查无创性方法阴性预测值阳性预测值

维普期刊数据库

含3支内冷却双极电极的多电极射频消融治疗大肝癌(5.0cm):26例初步研究

在线全文

学校读者我要写书评

暂无评论

国际医学放射学杂志 2008年第5期31卷 397-397页

作者： O.Seror G.n’kontchou M.Ibroheem Y.Ajavon C.Bnrrucand n.Ganne 唐光健 Department of Radiology Centre HospitaLo-Universi-taire Jean Verdier Assistance Publique-Hopilaux de Paris avenue du 14 Juillet 93140 Bondy France.

目的前瞻洼评估经皮多电极射频（RF）消融治疗大肝细胞癌（HCC）（直径≥5．0cm）的安全性与有效性。方法26例（女4例，男22例；平均年龄72岁）患有肝硬变（Child—Pugh A级22例：Child—Pugh B级4例）并至少有1个HCC直径在5．0—9．0c... 详细信息

目的前瞻洼评估经皮多电极射频（RF）消融治疗大肝细胞癌（HCC）（直径≥5．0cm）的安全性与有效性。方法26例（女4例，男22例；平均年龄72岁）患有肝硬变（Child—Pugh A级22例：Child—Pugh B级4例）并至少有1个HCC直径在5．0—9．0cm之间的病人接受了多电极RF消融治疗。所有病例均无门静脉主干或门静脉主要分支受侵，且均由同一术者操作。术中采用超声引导下的3个相互分离的双极线性内冷却电极进行操作。33个接受治疗的肿瘤中27个直径为5．0cm或更大（平均直径5．7cm；范围5．0～8．5cm），

关键词：多电极射频消融治疗冷却电极双极大肝癌门静脉主干平均直径肝细胞癌平均年龄

维普期刊数据库

非接触式多双极射频消融对于符合米兰标准肝细胞癌的长期疗效

在线全文

学校读者我要写书评

暂无评论

国际医学放射学杂志 2016年第5期 578-578页

作者： O.Seror G.n.kontchou J.C.nault Y.Rabahi P.nahon n.Ganne-Carrié 刘肖 Departments of Radiology and Hepatology Hpital Jean VerdierHpitaux Universitaires Paris-Seine Saint-DenisAssistance Publique Hpitaux de Paris

摘要目的评价非接触式多双极射频消融(RFA)治疗108例符合米兰标准的肝细胞癌(HCC)的长期疗效。材料与方法伦理委员会批准本回顾性研究并免除知情同意。2006年11月1日—2011年12月31日符合米兰标准的连续108例HCC(106例合并肝硬化)、132... 详细信息

摘要目的评价非接触式多双极射频消融(RFA)治疗108例符合米兰标准的肝细胞癌(HCC)的长期疗效。材料与方法伦理委员会批准本回顾性研究并免除知情同意。2006年11月1日—2011年12月31日符合米兰标准的连续108例HCC(106例合并肝硬化)、132个HCC肿瘤(直径10～45 mm;39个肿瘤≥30 mm)行非接触式多双极RFA治疗,激

关键词：肝细胞癌 HCC 米兰标准长期疗效双极射频消融非接触式