第九届世界胃肠病大会(World Congresses of Gastroenterology)于1990年8月26日~31日在澳大利亚悉尼市召开,会议组织了一个由7人组成的专家工作小组,包括J. J.Misiewicz(英国)、G. N. Tytgat(荷兰)、C. S.Goodwin(阿联酋)、A. B. Price...第九届世界胃肠病大会(World Congresses of Gastroenterology)于1990年8月26日~31日在澳大利亚悉尼市召开,会议组织了一个由7人组成的专家工作小组,包括J. J.Misiewicz(英国)、G. N. Tytgat(荷兰)、C. S.Goodwin(阿联酋)、A. B. Price(英国)、P. Sipponen(芬兰)、R. G. Strickland(美国)、R. Cheli(意大利)。经广泛收集资料和各方面意见。展开更多
本研究旨在以悉尼系统为基础,利用常规内镜下活检取材,探讨除菌前后 Hp 感染或残留与胃粘膜炎症的关系,为 Hp感染胃粘膜的观察提出一种规范化评价方法.通过对1237例内镜活检及316例除菌治疗后复检病例的观察,表明该分级系统标准易于掌握...本研究旨在以悉尼系统为基础,利用常规内镜下活检取材,探讨除菌前后 Hp 感染或残留与胃粘膜炎症的关系,为 Hp感染胃粘膜的观察提出一种规范化评价方法.通过对1237例内镜活检及316例除菌治疗后复检病例的观察,表明该分级系统标准易于掌握,能客观反映 Hp 感染后胃粘膜生物学特性,特别适合于 Hp 感染后胃粘膜炎症程度的判断和除菌治疗效果的评价,适于临床推广.进一步的研究表明由于胃窦、胃角或胃体部位取材,Hp 的检出率及定植量并无明显的差异,因此临床内镜活检中,无需强调多点或多部位取材.展开更多
针对须通过专用软件才能提取悉尼协调自适应交通控制系统(SCATS)中交通数据的问题,开发一种SCATS数据采集软件系统,通过SCATS提供的ITS接口采集交通数据,存储于SQL Server 2000数据库中。结果证明,该系统能成功采集数据并存储,实现了直...针对须通过专用软件才能提取悉尼协调自适应交通控制系统(SCATS)中交通数据的问题,开发一种SCATS数据采集软件系统,通过SCATS提供的ITS接口采集交通数据,存储于SQL Server 2000数据库中。结果证明,该系统能成功采集数据并存储,实现了直接从数据库中提取SCATS数据的目标。展开更多
This paper assesses 4 years of operation of a 1.75 kW roof top solar PV system installed in a Sydney suburban house. The system consists of 10 PV panels, a DC/AC inverter, and a grid connected gross meter. Solar elect...This paper assesses 4 years of operation of a 1.75 kW roof top solar PV system installed in a Sydney suburban house. The system consists of 10 PV panels, a DC/AC inverter, and a grid connected gross meter. Solar electricity delivered to grid is verified with the results from a computer simulation package (PVSYST) by adopting the installed component specifications, operation conditions, and weather data of the site. The results show high consistency between the values of energy delivered to the grid measured by the energy company and the energy estimated by system simulation. New system performance indicator is developed and called the optimum performance compliance ratio (PCR). It is a measure of the compliance of the output of the designed PV system with the output which would be produced by the same system with a solar tracker. This indicator provides system designers, contractors and energy providers with the actual capacity of the system that they can offer the end-users.展开更多
文摘第九届世界胃肠病大会(World Congresses of Gastroenterology)于1990年8月26日~31日在澳大利亚悉尼市召开,会议组织了一个由7人组成的专家工作小组,包括J. J.Misiewicz(英国)、G. N. Tytgat(荷兰)、C. S.Goodwin(阿联酋)、A. B. Price(英国)、P. Sipponen(芬兰)、R. G. Strickland(美国)、R. Cheli(意大利)。经广泛收集资料和各方面意见。
文摘本研究旨在以悉尼系统为基础,利用常规内镜下活检取材,探讨除菌前后 Hp 感染或残留与胃粘膜炎症的关系,为 Hp感染胃粘膜的观察提出一种规范化评价方法.通过对1237例内镜活检及316例除菌治疗后复检病例的观察,表明该分级系统标准易于掌握,能客观反映 Hp 感染后胃粘膜生物学特性,特别适合于 Hp 感染后胃粘膜炎症程度的判断和除菌治疗效果的评价,适于临床推广.进一步的研究表明由于胃窦、胃角或胃体部位取材,Hp 的检出率及定植量并无明显的差异,因此临床内镜活检中,无需强调多点或多部位取材.
文摘为了改善利用SCATS交通数据估计路段行程时间的效果,通过分析SCATS实际交通数据获取时间间隔不一致的特征,构建了SCATS交通数据虚拟时间序列,将利用因子分析法提取的累计贡献率在85%以上的主因子作为交通模式特征向量的构成要素,用欧氏距离作为当前交通模式特征向量和历史交通模式特征向量相似性的测度指标,以路段行程时间估计误差最小为目标选取当前交通模式的近邻数,对交通模式之间距离的倒数进行归一化处理,确定了相似交通模式的行程时间权重,设计了基于SCATS交通数据的路段行程时间估计方法.实例结果表明:与多元线性回归方法相比,本文方法估计的路段行程时间平均绝对误差、平均绝对百分比误差和均方根误差分别平均减少了9.68 s、8.07%和4.5 s.
文摘This paper assesses 4 years of operation of a 1.75 kW roof top solar PV system installed in a Sydney suburban house. The system consists of 10 PV panels, a DC/AC inverter, and a grid connected gross meter. Solar electricity delivered to grid is verified with the results from a computer simulation package (PVSYST) by adopting the installed component specifications, operation conditions, and weather data of the site. The results show high consistency between the values of energy delivered to the grid measured by the energy company and the energy estimated by system simulation. New system performance indicator is developed and called the optimum performance compliance ratio (PCR). It is a measure of the compliance of the output of the designed PV system with the output which would be produced by the same system with a solar tracker. This indicator provides system designers, contractors and energy providers with the actual capacity of the system that they can offer the end-users.