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Journal of Hydrodynamics 2011年第2期23卷 224-233页

作者： wang Zhong lu xiao-ping College of Naval Architecture and Power Naval University of Engineering Wuhan 430033 China

Up to now, there are no satisfactory numerical methods for simulating wave resistance of trimarans, mainly due to the difficulty related with the strong nonlinear features of the piece hull wave making and their interference. This article proposes a numerical method for quick and effective calculation of wave resistance of trimarans to be used in engineering applications. Based on Wyatt＇s work, the nonlinear free surface boundary condition, the time domain concept, and the full nonlinear wave making theory, using the Rankine source Green function, the 3-D surface panel method is expanded to solve the trimaran wave making problems, with high order nonlinear factors being taken into account, such as the influence of the sinking and trim, transom, and ship wave immersed hull surface. And the software is successfully developed to implement the method, which is validated. Several trimaran models, including a practical trimaran with a sonar dome and the transom, are used as numerical calculation samples, their wave making resistance is calculated both by the present method and some other methods such as linear （Dawson） methods. Moreover, sample model resistance tests were carried out to provide data for comparison, validation and analysis. Through the validation by model experiments, it is concluded that present method can well predict the wave making resistance, sinking and trim, and the accuracy of wave making resistance calculation is significantly improved by taking the trim and sinking into account, especially at high speeds.

关键词： trimaran nonlinear wave making resistance surface panel method sinking trim ship model test

Effect of Waterlogged and Aerobic Incubation on Enzyme Activities in Paddy Soil

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Pedosphere 2006年第4期16卷 532-539页

作者： wang xiao-Chang lu Qin Department of Tea Science College of Agriculture and Biotechnology Zhejiang University Hangzhou 31002g （China） Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 （China）

An incubation experiment with soil water content treatments of 0.15 （W1）, 0.20 （W2）, and 0.40 （W3） g g^-1 soil was carried out for two months to investigate the activities of important enzymes involved in C, N, P, and S cycling in a paddy soil from the Taihu Lake region, China, under waterlogged and aerobic conditions. Compared with air-dried soil, waterlogging resulted in a significant decrease （P ≤ 0.05） of fluorescein diacetate （FDA） and /3-D-glucosidase activities, and this effect was enhanced with increasing waterlogging time. Waterlogging also significantly inhibited （P ≤ 0.05） arylsulfatase as well as alkaline and acid phosphatase activities, but did not decrease the activities with the increase in waterlogging time. Short-term waterlogging did not affect urease activity, but prolonged waterlogging decreased it markedly. In contrast, the aerobic incubation （W1 and W2 treatments） significantly increased （P ≤ 0.05） FDA, alkaline phosphatase, and /3-D-glucosidase activities. With aerobic treatments the activities of FDA and alkaline phosphatase increased with incubation time, whereas /3-D-glucosidase activity decreased. A significant difference （P ≤ 0.05） was usually observed between the W1 and W2 treatments for the activities of FDA as well as alkaline and acid phosphatase; however,/3-D-glucosidase and urease were usually not significant （P ≤ 0.05）. No activity differences were observed between waterlogging and aerobic incubation for arylsulfatase and urease.

关键词： aerobic incubation enzyme activity paddy soil waterlogging

Beta-Glucosidase Activity in Paddy Soils of the Taihu Lake Region, China

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Pedosphere 2006年第1期16卷 118-124页

作者： wang xiao-Chang lu Qin Department of Tea Science Zhejiang University Hangzhou 310029 （China）. Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 （China）

The profile distribution of β-gulcosidase activity in twelve typical paddy soil profiles with high productivity in the Taihu Lake region of China were investigated. Activities of β-gulcosidase in the plow layers were in the range of 52.68- 137.02μg PNP g^-1 soil h^-1 with a mean of 89.22μg PNP g^-1 soil h^-1. However, most plow layers ranged from 70 to 110 μg PNP g^-1 soil h^-1. The profile distribution of β-gulcosidase activity in the 12 soil profiles decreased rapidly with soil depth, with activity at the 60 cm depth only about 10% of that in the surface layers （0-15 cm or 0-20 cm）. In these soil profiles, β-gulcosidase activity was significantly positively correlated with soll organic carbon and arylsulphatase activity. Meanwhile, a significantly negative correlation was shown between β-gulcosidase activity and soil pH.

关键词： beta-gulcosidase activity profile distribution paddy soil Taihu Lake region

Microstructure and mechanical properties of Al-10Si alloy modified with Al-5Ti

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China Foundry 2018年第6期15卷 405-410页

作者： Ya-ling Liu Chang-jun Wu Hao Tu xiao-wang lu Jian-hua wang Xu-ping Su Jiangsu Key Laboratory of Material Surface Science and Technology School of Materials Science and Engineering Changzhou University National Experimental Teaching Demonstration Center of Materials Science and Engineering Changzhou University Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou University

The microstructure, fracture morphology and mechanical properties of Al-10 Si alloy modified with Al-5 Ti were analyzed and tested by optical microscopy, scanning electron microscopy, and universal electronic testing machine. Compared with unmodified Al-10 Si alloy, the area fraction of α-Al phase in Al-10 Si alloy modified at 740 °C increased first and then decreased with the increase of added amounts of Al-5 Ti, and reached the maximum when the added amount of Al-5 Ti was 0.5 wt.%. When the modification temperature increased from 700 to 740 °C with Al-5 Ti being fixed at 0.5 wt.%, α-Al dendrites were refined obviously and the area fraction remarkably increased. Compared with unmodified Al-10 Si alloy, the ultimate tensile strength and elongation of the alloy modified at 740 °C with 0.5 wt.% Al-5 Ti increased by 9% and 49%, respectively. The fracture surface of modified alloy predominantly exhibited ductile fracture.

关键词： Al-10Si modification microstructure mechanical properties

TaABI19 positively regulates grain development in wheat

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Journal of Integrative Agriculture 2023年第1期22卷 41-51页

作者： LIU Yun-chuan wang xiao-lu HAO Chen-yang IRSHAD Ahsan LI Tian LIU Hong-xia HOU Jian ZHANG Xue-yong National Key Facility for Crop Gene Resources and Genetic Improvement Key Laboratory of Biology and Genetic Improvement of Triticeae CropsMinistry of Agriculture/Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081P.R.China State Key Laboratory of Plant Physiology and Biochemistry College of Biological SciencesChina Agricultural UniversityBeijing 100193P.R.China Institute of Cotton Research Chinese Academy of Agricultural SciencesAnyang 455000P.R.China National Key Facility for Crop Gene Resources and Genetic Improvement/National Center of Space Mutagenesis for Crop Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081P.R.China

Starch is the most important component in the endosperm, and its synthesis is regulated by multiple transcription factors(TFs) in cereals. However, whether the functions of these TFs are conserved among cereals remains unclear. In this study,we cloned a B3 family TF in wheat, named TaABI19, based on its orthologous sequence in maize(Zea mays L.). Alignment of the DNA and protein sequences showed that ABI19 is conserved in maize and wheat(Triticum aestivum L.). We found that TaABI19 is highly expressed in young spikes and developing grains, and encodes a nucleus-localized transcriptional activator in wheat. The taabi19-b1 null mutants obtained by EMS exhibited a down-regulation of starch synthesis, shorter grain length and lower thousand-grain weight(TGW). Furthermore, we proved that TaABI19 could bind to the promoters of TaPBF homologous genes and enhance their expression. Haplotype association showed that TaABI19-B1 is significantly associated with TGW. We found that Hap2 and Hap3 were favored and had undergone positive selection in China’s wheat breeding programs. Less than 50% of the modern cultivars convey the favored haplotypes, indicating that TaABI19 still can be considered as a target locus for marker-assisted selection breeding to increase TGW in China.

关键词： common wheat transcription factor haplotype thousand grain weight

Impressions of the 13^(th) Global Summit on Women

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International Understanding 2006年第3期 30-32页

作者： wang lu xiao Lan

On June 10, the annual Global Summit on Women opened in the ancient capital Cairo, Egypt. The Summit was long called the Davos Forum for Women. Nearly 900 representatives from political and business circles of 89 countries and regions participated in this year＇s summit,among whom there were outstanding women leaders and entrepreneurs such as Mrs. Suzanne Mubarak, First Lady of Egypt,Mme. My Truong Hoa,Vice President of Viet Nam,Ms. Henrietta Holsman Fore,Under Secretary of State of U.S. and Ms. Marilyn Johnson,Vice President of IBM. Mme.

关键词：第十三届全球妇女大会开罗中国妇女代表团 2006年11月阿拉伯妇女

Fasudil inhibits platelet-derived growth factor-induced human pulmonary artery smooth muscle cell proliferation by up-regulation of p27^kipl via the ERK signal pathway

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Chinese Medical Journal 2011年第19期124卷 3098-3104页

作者： LIU Ai-jun LING Feng wang Dong wang Qiang lu xiao-dong LIU Ying-long Department of Pediatric Cardiac Surgery Center Fuwai Hospital Chinese Academy of Medical Sciences ＆ Peking Union Medical College Beijing 100037 China

Background RhoA/ Rho kinase （ROCK） pathway is involved in pulmonary arterial hypertension （PAH） and pulmonary artery smooth muscle cell （PASMC） proliferation. Inhibition of ROCK has been proposed as a treatment for PAH. But the mechanism of RhoA/ROCK pathway and its downstream signaling in proliferation of human PASMCs is unclear. We investigated the effect of fasudil, a selective ROCK inhibitor, on platelet-derived growth factor （PDGF） induced human PASMC proliferation, and the possible association between RhoA/ROCK and extracellular signal-regulated kinase （ERK）,*** Human PASMCs were cultured with the stimulation of 10 ng/ml PDGF, and different concentrations of fasudil were added before the addition of mitogen. Cell viability and cell cycle were determined with MTT and flow cytometry respectively. ROCK activity, ERK activity and protein expression of proliferating cell nuclear angigen （PCNA） and p27Kip1 were measured by *** By MTT assay, PDGF significantly increased the OD value that represented human PASMC proliferation, and pretreatment with fasudil significantly reversed this effect in a dose-dependent manner. After PDGF stimulation, the percentage of cells in S phase increased dramatically from 15.6% to 24.3%, while the percentage in G0/G1 phase was reduced from 80.6% to 59%. And pretreatment with fasudil reversed the cell cycle effect of PDGF significantly in a dose-dependent manner. PDGF markedly induced ROCK activity and ERK activity with a peak at 15 minutes, which were significantly inhibited by fasudil. In addition, fasudil significantly inhibited PDGF-induced PCNA expression and fasudil also upregulated p27Kip1 expression in human PASMCs, which decreased after PDGF *** RhoA/ROCK is vital for PDFG-induced human PASMC proliferation, and fasudil effectively inhibited PDGF-induced human PASMC proliferation by up-regulation of p27Kip1, which may be associated with inhibition of ERK activity.

关键词： human pulmonary smooth muscle cell proliferation Rho-kinase fasudil extracellular signal-regulated kinase p27^kip1

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高温下GFRP筋力学性能的试验研究

华南理工大学学报（自然科学版） 2011年第9期39卷 75-81页

作者：王晓璐査晓雄哈尔滨工业大学深圳研究生院广东深圳518055

为了研究高温下纤维增强复合材料(FRP)筋的力学性能,对直径为8mm的玻璃纤维增强复合材料(GFRP)筋进行了高温下的拉伸试验,获得了10～500℃范围内随着温度升高GFRP筋的极限强度和弹性模量的衰减趋势;并结合材料TG/DSC热学试验结果提出了G... 详细信息

为了研究高温下纤维增强复合材料(FRP)筋的力学性能,对直径为8mm的玻璃纤维增强复合材料(GFRP)筋进行了高温下的拉伸试验,获得了10～500℃范围内随着温度升高GFRP筋的极限强度和弹性模量的衰减趋势;并结合材料TG/DSC热学试验结果提出了GFRP筋在高温下的拉伸本构模型.该三参数拉伸本构模型以纤维和树脂的热学性能为基础,可简化为由树脂玻璃化温度和纤维丝软化/氧化温度控制的二参数模型.经验证,该二参数模型与文中及相关文献中的FRP筋的高温拉伸试验结果相吻合,具有较强的通用性,可推广应用于其他树脂材料和纤维类型的FRP筋中.

关键词：玻璃纤维增强复合材料筋高温拉伸试验热化学分析本构模型

Educational Reform and Practice of Experimental Course in Architectural Environment and Equipment Engineering Profession

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Educational Reform and Practice of Experimental Course in Ar...

“构建人类命运共同体”理念的中国政治哲学阐释

2013年教育技术与管理科学国际会议

作者： wang xiao-lu Huang Da-yu Jinling Institute of Technology Mechanical Electrical Engineering Institute

Based on the present existing problems of experimental course in Architectural Environment and Equipment Engineering, the paper conducts the reform and innovation from the teaching mode, case teaching, interactive teaching etc. and introduces the scene experience type teaching mode combined with the research in the aspects of practical experience in recent years. The article constructs the "theoretical scene type teaching and practical experience and extracurricular interest team" trinity experiment teaching system, forms the teaching characteristics of basic knowledge reinforcement and experimental process are acted as guide, improves the students ability for analyzing and solving problems using the learned knowledge, and lay a foundation to further improve the quality and effectiveness of education.

关键词： experimental teaching scene experience educational reform

来源： cnki会议评论

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内蒙古社会科学 2022年第2期43卷 52-58页

作者：王小露南京邮电大学计算机学院/软件学院/网络空间安全学院江苏南京210023

构建“人类命运共同体”是习近平总书记针对世界新发展而给出的充满智慧的回应。当今世界由西方国家主义政治哲学所主宰,“以国家观世界”的视野消解了当代的“世界性”,“同一性”逻辑导致当代世界“多样性”的缺失,政治意义的消弭导... 详细信息

构建“人类命运共同体”是习近平总书记针对世界新发展而给出的充满智慧的回应。当今世界由西方国家主义政治哲学所主宰,“以国家观世界”的视野消解了当代的“世界性”,“同一性”逻辑导致当代世界“多样性”的缺失,政治意义的消弭导致当代世界治理的无序性与无效性。中国政治哲学的核心是“天下”思维,它不但彰显了“世界”在内容与形式上的一致性,还成为世界包容性治理的思想基础。“构建人类命运共同体”是在中国政治哲学“天下”思维指引下的世界治理方案,它继承了中华民族人类整体德性的传统理念,超越了传统政治哲学中的“差序世界观”,是应对世界百年变局的最佳实践方案。

关键词：人类命运共同体国家主义政治哲学天下思维中国政治哲学德性政治