This paper describes the model test and the virtual simulation respectively for the VLCC class FPSO hookup, as well as addresses their different applications to the mating operation between the FPSO and the soft yoke ...This paper describes the model test and the virtual simulation respectively for the VLCC class FPSO hookup, as well as addresses their different applications to the mating operation between the FPSO and the soft yoke mooring system （SYMS） in extremely shallow water. The scope of the model test and the virtual simulation covers various installation stages including a series of positioning trials, positioning keeping and temporary mooring to the pre-installed SYMS mooring tower, pendulum mating, and yoke ballasting to storm-safe. The model test is to accurately verify bollard pull capacity to keep the FPSO in position and assess motion responses and mooring loads for the FPSO and installation vessels during various installation stages. The virtual simulation is to provide a virtual-reality environment, thus realistically replicating the hookup operation at the Simulation Test Center （STC） facility and identifying any deficiencies in key installation personnel, execution plan, or operation procedures. The methodologies of the model test and the virtual simulation addressed here can be easily extended to the deepwater applications such as positioning and installation operations of various floating systems.展开更多
目的观察急性下肢深静脉血栓形成患者治疗前、后静脉功能不全的流行病学和经济研究(Venous Insufficiency Epidemiological and Economic Studies,VEINES)-生活质量(the quality of life,QOL)/症状(symptom,Sym)调查问卷评分水平变化。...目的观察急性下肢深静脉血栓形成患者治疗前、后静脉功能不全的流行病学和经济研究(Venous Insufficiency Epidemiological and Economic Studies,VEINES)-生活质量(the quality of life,QOL)/症状(symptom,Sym)调查问卷评分水平变化。方法急性下肢深静脉血栓形成患者56例,均给予低分子肝素+尿激酶+华法林治疗,比较治疗前及经治疗华法林用量稳定后VEINES-QOL/Sym问卷评分。结果治疗前、后VEINES-QOL评分分别为(38.23±1.48),(85.14±1.73)分,差异有统计学意义(t=-21.99,P<0.01);治疗前、后VEINES-Sym评分分别为(19.55±0.78),(40.64±0.86)分,差异有统计学意义(t=-17.51,P<0.01)。结论 VEINES-QOL/Sym评分可用于评估急性下肢深静脉血栓患者的治疗效果。展开更多
By focusing on the vulnerability of the structure of marine equipments, together with considering the randomness of meta-ocean load in statistics, a kind of analytical method of fatigue characteristics of marine struc...By focusing on the vulnerability of the structure of marine equipments, together with considering the randomness of meta-ocean load in statistics, a kind of analytical method of fatigue characteristics of marine structure based on full- scale and actual measurement of prototype is proposed. On the basis of short-term field measurement results of structural response, research is carried out on the fatigue analysis of hinge joints at the upper part of the Soft Yoke single point Mooring System （SYMS） by simultaneously monitoring the environmental load and considering the design criteria of offshore structure. Through analysis of finite element modeling, the time-histories of typical stress response are obtained, and then the assessment of fatigue damage at key hinge joints is conducted. The simulation results indicate that the proposed method can accurately analyze the fatigue damage of offshore engineering structure caused by the effect of wave load. The present analytical method of fatigue characteristics can be extended on other offshore engineering structures subjected to meta-ocean load.展开更多
This essay put emphasis on the analysis T.S. Eliot's The Waste Land, pointing the masterpiece can be interpreted by three- levels, the person, the society and human race. Eliot also indicated two kinds of people, ...This essay put emphasis on the analysis T.S. Eliot's The Waste Land, pointing the masterpiece can be interpreted by three- levels, the person, the society and human race. Eliot also indicated two kinds of people, the one is just secularized, and the other one is lack of faith in The Waste Land. We can analyze the feeling of protagonist is afraid to live new life, but afraid of death, the important theme is corruption of sex.展开更多
基金Supported by the Fund from COPC PL19-3 FPSO Project
文摘This paper describes the model test and the virtual simulation respectively for the VLCC class FPSO hookup, as well as addresses their different applications to the mating operation between the FPSO and the soft yoke mooring system （SYMS） in extremely shallow water. The scope of the model test and the virtual simulation covers various installation stages including a series of positioning trials, positioning keeping and temporary mooring to the pre-installed SYMS mooring tower, pendulum mating, and yoke ballasting to storm-safe. The model test is to accurately verify bollard pull capacity to keep the FPSO in position and assess motion responses and mooring loads for the FPSO and installation vessels during various installation stages. The virtual simulation is to provide a virtual-reality environment, thus realistically replicating the hookup operation at the Simulation Test Center （STC） facility and identifying any deficiencies in key installation personnel, execution plan, or operation procedures. The methodologies of the model test and the virtual simulation addressed here can be easily extended to the deepwater applications such as positioning and installation operations of various floating systems.
文摘目的观察急性下肢深静脉血栓形成患者治疗前、后静脉功能不全的流行病学和经济研究(Venous Insufficiency Epidemiological and Economic Studies,VEINES)-生活质量(the quality of life,QOL)/症状(symptom,Sym)调查问卷评分水平变化。方法急性下肢深静脉血栓形成患者56例,均给予低分子肝素+尿激酶+华法林治疗,比较治疗前及经治疗华法林用量稳定后VEINES-QOL/Sym问卷评分。结果治疗前、后VEINES-QOL评分分别为(38.23±1.48),(85.14±1.73)分,差异有统计学意义(t=-21.99,P<0.01);治疗前、后VEINES-Sym评分分别为(19.55±0.78),(40.64±0.86)分,差异有统计学意义(t=-17.51,P<0.01)。结论 VEINES-QOL/Sym评分可用于评估急性下肢深静脉血栓患者的治疗效果。
基金financially supported by the National Natural Science Foundation of China(Grant No.15572072)the National Key Basic Research and Development Program(Grant Nos.2014CB046803 and 2016ZX05028-002-005)
文摘By focusing on the vulnerability of the structure of marine equipments, together with considering the randomness of meta-ocean load in statistics, a kind of analytical method of fatigue characteristics of marine structure based on full- scale and actual measurement of prototype is proposed. On the basis of short-term field measurement results of structural response, research is carried out on the fatigue analysis of hinge joints at the upper part of the Soft Yoke single point Mooring System （SYMS） by simultaneously monitoring the environmental load and considering the design criteria of offshore structure. Through analysis of finite element modeling, the time-histories of typical stress response are obtained, and then the assessment of fatigue damage at key hinge joints is conducted. The simulation results indicate that the proposed method can accurately analyze the fatigue damage of offshore engineering structure caused by the effect of wave load. The present analytical method of fatigue characteristics can be extended on other offshore engineering structures subjected to meta-ocean load.
文摘This essay put emphasis on the analysis T.S. Eliot's The Waste Land, pointing the masterpiece can be interpreted by three- levels, the person, the society and human race. Eliot also indicated two kinds of people, the one is just secularized, and the other one is lack of faith in The Waste Land. We can analyze the feeling of protagonist is afraid to live new life, but afraid of death, the important theme is corruption of sex.
