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FRANCIS QL ALGORITHM FOR FINDING THE EIGENVALUES OF ANTI-SYMMETRIC MATRICES

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Numerical Mathematics A Journal of Chinese Universities(English Series) 1994年第2期3卷 202-215页

作者：蒋尔雄 lam peter C.B. Department of Mathematics Fudan University Shanghai 200433 Department of Mathematics Hong Kong Baptist College Hong Kong.

In this paper,we demonstrate that the double-shift QL algorithm for an irreducible anti-symmetric iridiagonal matrix with the shifts being two eigenvalues of the 2×2 matrix in the left upper corner of this matrix is ... 详细信息

关键词： Convergence Francis QL algorithm

单样本率比较(单组目标值法)的样本量计算及其简便实现

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中国卫生统计 2018年第2期35卷 313-314页

作者：曾治宇林娜张明东 peter lam 波科国际医疗贸易上海有限公司医学部 100125 北京大学公共卫生学院中国医学科学院阜外医院心律失常诊治中心《中华心律失常学杂志》编辑部波士顿科学公司(美国)

样本量计算是临床研究设计阶段的主要工作之一，其重要性在国内日渐受到重视，为此在2015年还发表了一个《临床试验中样本量确定的统计学考虑》的专家共识。

关键词：样本率量计设计阶段临床研究临床试验统计学样本量

TWO KINDS OF SHIFT USING β2 IN QL ALGORITHM

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Numerical Mathematics(Theory,Methods and Applications) 1992年第1期 49-56页

作者：蒋尔雄,lam peter C. B. ,林子波 Department of Mathematics Fudan University Shanghai 200433 PRC. Department of Mathematics Hong Kong Baptist College Hong Kong.

In this paper we put forward two kinds of shift using β2 , for symmetric tridiagonal matrix QL algorithm. Both not only preserves global convergence, but also their asymptotic convergence. A method which possesses ab... 详细信息

关键词： Eigenvalue problem QL algorithm shift convergence the asymptotic converg ence rale.

我国首次将具信号肽和内含子的植物源性基因在蚕体中得到表达

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中国农业科学 1996年第1期 93-94页

作者：季平,张志芳,何家禄,吴祥甫,peter Hing-Yat lam 中国农业科学院蚕业研究所中国农业科学院蚕业研究所中国农业科学院蚕业研究所中国科学院上海生物化学研究所香港科技大学生化系江苏镇江 212018 江苏镇江 212018 江苏镇江 212018

昆虫表达系统是国际上80年代发展起来的一项生物工程新技术。它与细菌、酵母及哺乳动物细胞表达系统相比,具有表达量高、安全性好,且表达的外源产物在免疫性、免疫原性及其它生物活性上与

关键词：重组病毒家蚕桑蚕蚕体内含子基因

热湿存储环境下须状晶体的生长机理与影响因素

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热湿存储环境下须状晶体的生长机理与影响因素

多巴胺能药物对鼠垂体腺癌细胞系GH3雌激素受体的调节

2011年全国电子电镀及表面处理学术交流会

作者： Juergen Barthelmes Paolo Crema peter Kuehlkamp Patrick lam

＜正＞纯哑锡表面的晶须特性已经成为IC封装中无铅焊接工艺实施的主要影响因素之一.由于其它替代方法,例如预先在引脚上镀Ni/Pd/Au层,会导致成本无法预估以及可靠性下降等问题,因此,目前的关注点是进一步减少纯锡表面须状晶体的生长.iNE...

＜正＞纯哑锡表面的晶须特性已经成为IC封装中无铅焊接工艺实施的主要影响因素之一.由于其它替代方法,例如预先在引脚上镀Ni/Pd/Au层,会导致成本无法预估以及可靠性下降等问题,因此,目前的关注点是进一步减少纯锡表面须状晶体的生长.iNEMI/JEDEC推荐的热湿存储环境（55℃,85%RH条件下4000小时）,已经被认为是最易引起须

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中国病理生理杂志 1991年第1期 74-74页

作者：陆家齐,HING-YAT peter lam 军医进修学院304医院加拿大马尼托巴大学医学院癌中心细胞生物所

为了探讨多巴胺能药物对ER结合力的影响及其机制。我们用不同浓度的Dopamine,Bromocriptine,Sulpiride处理鼠垂体腺癌细胞系GH3。测定其胞浆ER与[3H]E2的结合力,并将胞浆液与32P-ER-mRNA探针

关键词：癌细胞系 ER 垂体腺胞浆细胞质多巴胺能药物药物处理结合力去卵巢 GH3

圈的推广Mycielski图的圆色数(英文)

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南京大学学报（数学半年刊） 2006年第2期23卷 232-241页

作者：林文松林子波邵慰慈东南大学数学系南京210096 香港浸会大学数学系

Mycielski图是1955年由Mycielski提出来的．任给一个图G和一个非负整数m,G的推广Mycielski图μm(G)是G的Mycielski图的一个自然的推广．推广Mycielski图的性质以及它们的点色数、圆色数和分数色数等已有许多研究．本文研究圈的推广Mycie... 详细信息

Mycielski图是1955年由Mycielski提出来的．任给一个图G和一个非负整数m,G的推广Mycielski图μm(G)是G的Mycielski图的一个自然的推广．推广Mycielski图的性质以及它们的点色数、圆色数和分数色数等已有许多研究．本文研究圈的推广Mycielski图的圆色数．定义Cn为n个顶点的圈．对任意非负整数m和大于2的整数n,本文确定了图μm(Cn)的圆色数,同时还得到了图μm(Cn)-v的圆色数的一些结果．

关键词：圆色数推广Mycielski图圈奇围长临界图

X-ray diffraction investigation of amorphous calcium phosphate and hydroxyapatite under ultra-high hydrostatic pressure

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International Journal of Minerals,Metallurgy and Materials 2015年第11期22卷 1225-1231页

作者： Elisa lam Qinfen Gu peter J.Swedlund Sylvie Marchesseau Yacine Hemar School of Chemical Sciences The University of Auckland Australian Synchrotron Université Montpellier 2 UMR IATE Pl.E Bataillon34095 Montpellier cedex 5 France

The changes in the crystal structures of synthetically prepared amorphous calcium phosphate（ACP） and hydroxyapatite（HAP） in water（1：1 mass ratio） were studied by synchrotron X-ray diffraction（XRD） under ultra-high hydrostatic pressures as high as 2.34 GPa for ACP and 4 GPa for HAP. At ambient pressure, the XRD patterns of the ACP and HAP samples in capillary tubes and their environmental scanning electron micrographs indicated amorphous and crystalline characteristics for ACP and HAP, respectively. At pressures greater than 0.25 GPa, an additional broad peak was observed in the XRD pattern of the ACP phase, indicating a partial phase transition from an amorphous phase to a new high-pressure amorphous phase. The peak areas and positions of the ACP phase, as obtained through fitting of the experimental data, indicated that the ACP exhibited increased pseudo-crystalline behavior at pressures greater than 0.96 GPa. Conversely, no structural changes were observed for the HAP phase up to the highest applied pressure of 4 GPa. For HAP, a unit-cell reduction during compression was evidenced by a reduction in both refined lattice parameters a and c. Both ACP and HAP reverted to their original structures when the pressure was fully released to ambient pressure.

关键词： calcium phosphate hydroxyapatite high hydrostatic pressure X-ray diffraction

Toward Carbon-Neutral Water Systems:Insights from Global Cities

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Engineering 2022年第7期8卷 77-85页

作者： Ka Leung lam Gang Liu Anne Marieke Motelica-Wagenaar Jan peter van der Hoek Division of Natural and Applied Sciences Duke Kunshan UniversityKunshan 215316China Research Center for Eco-Environmental Sciences Chinese Academy of SciencesBeijing 100085China Waternet Amsterdam 1096 ACNetherlands Department of Water Management Delft University of TechnologyDelft 2628 CNNetherlands

Many cities have pledged to achieve carbon *** urban water industry can also contribute its share to a carbon-neutral *** a multi-city time-series analysis approach,this study aims to assess the progress and lessons learned from the greenhouse gas(GHG)emissions management of urban water systems in four global cities:Amsterdam,Melbourne,New York City,and *** cities are advanced in setting GHG emissions reduction targets and reporting GHG emissions in their water *** four cities have reduced the GHG emissions in their water industries,compared with those from more than a decade ago(i.e.,the latest three-year moving averages are 13%–32%lower),although the emissions have“rebounded”multiple times over the *** emissions reductions were mainly due to various engineering opportunities such as solar and mini-hydro power generation,biogas valorization,sludge digestion and incineration optimization,and aeration system *** cities have recognized the many challenges in reaching carbon-neutrality goals,which include fluctuating water demand and rainfall,more carbon-intensive flood-prevention and water-supply strategies,meeting new air and water quality standards,and revising GHG emissions accounting *** study has also shown that it is difficult for the water industry to achieve carbon neutrality on its own.A collaborative approach with other sectors is needed when aiming toward the city’s carbon-neutrality *** an approach involves expanding the usual system boundary of the water industry to externally tap into both engineering and non-engineering opportunities.

关键词： Urban water Greenhouse gas emissions Cities Climate change mitigation Carbon neutrality