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Journal of Hydrodynamics 2008年第3期20卷 323-330页

作者： WANG Kai SUN Feng-zhong ZHAO yuan-bin gao ming SHI Yue-tao School of Energy and Power Engineering Shandong University Jinan 250061 China

A model for heat and mass transfer in a natural-draft wet cooling tower was established. Numerical simulation with the κ-ε turbulent model was conducted. Distribution rules of air inlet aerodynamic field were studied. Field experiments were done in a cooling tower in power plant, and the test data was compared with the related results. The definition of characteristic air velocity was proposed and its influencing factors, such as the cross-wind velocity and circumferential angle, were quantitatively studied. It can be used to evaluate the performance of cooling tower and to calculate the ventilation quantity and resistance of air inlet. It is also a theoretical basis for cooling tower design and performance optimization.

关键词： cooling tower flow field numerical simulation air inlet

Subway rail transit monitoring by built-in sensor platform of smartphone

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Frontiers of Information Technology & Electronic Engineering 2020年第8期21卷 1226-1238页

作者： Jian-li CONG ming-yuan gao yuan WANG Rong CHEN Ping WANG School of Civil Engineering Southwest Jiaotong UniversityChengdu 610031China Key Laboratory of High-speed Railway Engineering Ministry of EducationChengdu 610031China College of Engineering and Technology Southwest UniversityChongqing 400716China National&Local Joint Engineering Laboratory of Intelligent Transmission and Control Technology Chongqing 400716China School of System Design and Intelligent Manufacturing Southern University of Science and TechnologyShenzhen 518055China

Smartphone,as a smart device with multiple built-in sensors,can be used for collecting information(e.g.,vibration and location).In this paper,we propose an approach for using the smartphone as a sensing platform to obtain real-time data on vehicle acceleration,velocity,and location through the development of the corresponding application software and thereby achieve the green concept based monitoring of the track condition during subway rail *** tests are conducted to verify the accuracy of smartphones in terms of the obtained data’s standard deviation(SD),Sperling index(SI),and International Organization for Standardization(ISO)-2631 weighted acceleration index(WAI).A vehicle-positioning method,together with the coordinate alignment algorithm for a Global Positioning System(GPS)free tunnel environment,is *** the time-domain integration method,the relationship between the longitudinal acceleration of a vehicle and the subway location is established,and the distance between adjacent stations of the subway is calculated and compared with the actual *** effectiveness of the method is verified,and it is confirmed that this approach can be used in the GPS-free subway tunnel *** is also found that using the proposed vehicle-positioning method,the integral error of displacement of a single subway section can be controlled to within 5%.This study can make full use of smartphones and offer a smart and eco-friendly approach for human life in the field of intelligent transportation systems.

关键词： Acceleration signals Smart monitoring Embedded sensors Smartphones Subway

Apoptosis,proliferation and p53 gene expression of *** associated gastric epithelial lesions

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World Journal of Gastroenterology 2001年第6期7卷 779-782页

作者： Zhong Zhang~1 yuan yuan Hua gao ming Dong Lan Wang Yue-Hua Gong 1 Department of Pathology,Shenyang Medical College,Shenyang 110031 Liaoning Province,China Department of Pathology Shenyang Medical College Liaoning Province China.

AIM: To study the relationship between Helicobacter pylori (H. pylori) and gastric carcinoma and its possible pathogenesis by H. pylori. METHODS: DNEL technique and immunohistochemical technique were used to study the state of apoptosis, proliferation and p53 gene expression. A total of 100 gastric mucosal biopsy specimens, including 20 normal mucosa, 30 H. pylori-negative and 30 H. pylori-positive gastric precancerous lesions along with 20 gastric carcinomas were studied. RESULTS: There were several apoptotic cells in the superficial epithelium and a few proliferative cells within the neck of gastric glands, and no p53 protein expression in normal mucosa. In gastric carcinoma, there were few apoptotic cells, while there were a large number of proliferative cells, and expression of p53 protein significantly was increased. In the phase of metaplasia, the apoptotic index (AI, 4.36%+/-1.95%), proliferative index (PI, 19.11%+/-6.79%) and positivity of p53 expression (46.7%) in H. pylori-positive group were higher than those in normal mucosa (P<0.01). AI in H. pylori-positive group was higher than that in H. pylori-negative group (3.81%+/-1.76%), PI in H. pylori-positive group was higher than that in H. pylori-negative group (12.25%+/-5.63%, P<0.01). In the phase of dysplasia, AI (2.31%+/-1.10%) in H. pylori-positive group was lower (3.05%+/-1.29%) than that in H. pylori-negative group, but PI (33.89%+/-11.65%) was significantly higher (22.09+/-8018%, P<0.01). In phases of metaplasia, dysplasia and gastric cancer in the H. pylori-positive group, AIs had an evidently graduall decreasing trend (P<0.01), while PIs had an evidently gradual increasing trend (P<0.05 or P<0.01), and there was also a trend of gradual increase in the expression of p53 gene. CONCLUSION: In the course of the formation of gastric carcinoma, proliferation of gastric mucosa can be greatly increased by H. pylori, and H. pylori can induce apoptosis in the phase of metaplasia, but in th

关键词： Apoptosis Gene Expression Helicobacter pylori Cell Division Gastric Mucosa Genes, p53 Helicobacter Infections Humans Research Support, Non-U.S. Gov't Stomach Diseases

PREPARATION　AND　CHARACTERIZATION　OF　A　［C1TET－TTF］2C60　CHARGE－TRANSFER　COMPLEX

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Chinese Chemical Letters 1994年第5期 415-416页

作者： Yu Liang LI yuan ming gao Zi WU Feng Lian BAI Yong Fang LI Yi ming MO Hong Xian HAN and Dao ben ZHU (Institute of Chemistry Chinese Academy of Sciences. Beijing 100080)

ＰＲＥＰＡＲＡＴＩＯＮＡＮＤＣＨＡＲＡＣＴＥＲＩＺＡＴＩＯＮＯＦＡ［Ｃ１ＴＥＴ－ＴＴＦ］２Ｃ６０ＣＨＡＲＧＥ－ＴＲＡＮＳＦＥＲＣＯＭＰＬＥＸ￥ＹｕＬｉａｎｇＬＩ；ＹｕａｎＭｉｎｇＧＡＯ；ＺｉＷＵ；ＦｅｎｇＬｉａｎＢＡ... 详细信息

ＰＲＥＰＡＲＡＴＩＯＮＡＮＤＣＨＡＲＡＣＴＥＲＩＺＡＴＩＯＮＯＦＡ［Ｃ１ＴＥＴ－ＴＴＦ］２Ｃ６０ＣＨＡＲＧＥ－ＴＲＡＮＳＦＥＲＣＯＭＰＬＥＸ￥ＹｕＬｉａｎｇＬＩ；ＹｕａｎＭｉｎｇＧＡＯ；ＺｉＷＵ；ＦｅｎｇＬｉａｎＢＡＩ；ＹｏｎｇＦａｎｇＬＩ；?..

关键词： C1TET OF CHARACTERIZATION TTF AND

Constrained Path-Planning Control of Unmanned Surface Vessels via Ant-Colony Optimization

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Constrained Path-Planning Control of Unmanned Surface Vessel...

Investigation of bubbles escape behavior from low basicity mold flux for high-Mn high-Al steels using 3D X-ray microscope

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作者： ming-yuan gao Bin-Bin Hu Bin Liu Ning Qiu Hai-Tao Zhang School of Artificial Intelligence and Automation and State Key Lab of Digital Manufacturing Equipment and Technology Huazhong University of Science and Technology China-EU Institute for Clean and Renewable Energy Huazhong University of Science and Technology Chinese Acad Sci Chinese Acad Sci Key Lab Ocean & Marginal Sea GeoSouth China Sea Inst Oceanol

This paper proposes a constrained path-planning scheme for the unmanned surface vessel（USV） via ant-colony optimization. First, a multi-grid map is modeled and established along the kinematics of the USV body suffered by limited energy. A typical ant-colony optimization algorithm is afterwards designed to achieve the energy-saving path planning for narrow channels of water areas. Finally, real lake experiments with HUSTER-12 s USV are conducted to verify the effectiveness of the proposed path-planning algorithm.

关键词： Constrained path planning ant-colony optimization unmanned surface vessel(USV)

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 102-110页

作者： Qiang Liu Xiang Li Shen Du ming gao Yanbin Yin Jiongming Zhang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

During the continuous casting process of high-Mn high-Al steels,various types of gases such as Ar need to escape through the top of the *** which,the behavior of bubbles traversing the liquid slag serves as a restrictive link,closely associated with viscosity and the thickness of liquid *** contrast to two-dimensional surface observation,three-dimensional(3D)analysis method can offer a more intuitive,accurate,and comprehensive ***,this study employs a 3D X-ray microscope(3D-XRM)to obtained spatial distribution and 3D morphological characteristics of residual bubbles in mold flux under different basicity of liquid slag,different temperatures,and different holding *** results indicate that as basicity of slag increases from 0.52 to 1.03,temperature increases from 1423 to 1573 K,the viscosity of slag decreases,the floating rate of bubbles *** addition,when holding time increases from 10 to 30 s,the bubbles floating distance increases,and the volume fraction and average equivalent sphere diameter of the bubbles solidified in the mold flux gradually *** one word,increasing the basicity,temperature,and holding time leading to an increase in the removal rate of bubbles especially for the *** findings of bubbles escape behavior provide valuable insights into optimizing low basicity mold flux for high-Mn high-Al steels.

关键词： mold flux low basicity bubbles three-dimensional X-ray microscope viscosity

Hepatic veno-occlusive disease induced by Gymura segetum: report of two cases

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Hepatobiliary & Pancreatic Diseases International 2006年第3期5卷 406-408页

作者： Hui-Fen Dai, yuan gao, ming Yang, Chao-Hui Yu, Zhu-Ying Gu and Wei-Xing Chen Zhejiang University School of Medicine, Hangzhou 310031, China Department of Emergency Medicine and Department of Gastroenterology , First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China Zhejiang University School of Medicine Hangzhou 310003 China.

BACKGROUND: Hepatic veno-occlusive disease (VOD) or sinusoidal obstruction syndrome is associated with a high mortality because of its severity. Gymura segetum, a Chinese herbal medicine, is always used to cure injury and bleeding in rural areas in China. This study was undertaken to better understand VOD and its relations to the effect of Gymura segetum. METHODS: Between 2000 and 2002,two patients were admitted to our department because of VOD. Before admission, both of them had been injured and taken oral decoction of patent drug Gymura segetum. We analyzed the clinical manifestations, diagnosis and therapy of the two patients. RESULTS: Pyrrolizidine in Panax notginseng was proved to induce VOD. The diagnosis of VOD depended on hepatic biopsy. CONCLUSION: Gymura segetum can induce VOD. More attention should be paid to its unsuscepted side effects.

关键词： hepatic veno-occlusive disease ascites drugs, Chinese herbal liver transplantation

Dynamic Regulation of Hydrogen Bonding Networks and Solvation Structures for Synergistic Solar‑Thermal Desalination of Seawater and Catalytic Degradation of Organic Pollutants

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Nano-Micro Letters 2025年第2期17卷 548-565页

作者： ming‑yuan Yu Jing Wu Guang Yin Fan‑Zhen Jiao Zhong‑Zhen Yu Jin Qu Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical TechnologyBeijing 100029People’s Republic of China State Key Laboratory of Organic‑Inorganic Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029People’s Republic of China

Although solar steam generation strategy is efficient in desalinating seawater,it is still challenging to achieve continuous solar-thermal desalination of seawater and catalytic degradation of organic ***,dynamic regulations of hydrogen bonding networks and solvation structures are realized by designing an asymmetric bilayer membrane consisting of a bacterial cellulose/carbon nanotube/Co_(2)(OH)_(2)CO_(3)nanorod top layer and a bacterial cellulose/Co_(2)(OH)_(2)CO_(3)nanorod(BCH)bottom ***,the hydrogen bonding networks inside the membrane can be tuned by the rich surface–OH groups of the bacterial cellulose and Co_(2)(OH)_(2)CO_(3)as well as the ions and radicals in situ generated during the catalysis ***,both SO_(4)^(2−)and HSO_(5)−can regulate the solvation structure of Na^(+)and be adsorbed more preferentially on the evaporation surface than Cl^(−),thus hindering the de-solvation of the solvated Na^(+)and subsequent nucleation/growth of ***,the heat generated by the solar-thermal energy conversion can accelerate the reaction kinetics and enhance the catalytic degradation *** work provides a flow-bed water purification system with an asymmetric solar-thermal and catalytic membrane for synergistic solar thermal desalination of seawater/brine and catalytic degradation of organic pollutants.

关键词： Solar steam generation Seawater desalination Catalytic degradation Bacterial cellulose Cobalt hydroxycarbonate nanorods

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“针刀三部曲”治疗膝关节骨性关节炎68例

针灸临床杂志 2011年第2期27卷 36-38页

作者：袁高明范伏元张谨湖南中医药大学湖南长沙410007 湖南中医药大学第一附属医院湖南长沙410007 广州军体医院针刀疼痛治疗中心广东广州510610

目的:阐述在生物力学原理指导下针刀治疗膝关节骨关节炎的思路与方法,并进行临床疗效观察。方法:对68例膝关节骨性关节炎患者采用"三步针刀法"解除腰部臀部肌肉张力,松解膝关节周围软组织的粘连以恢复膝关节功能。结果:有效率达97.06%,... 详细信息

目的:阐述在生物力学原理指导下针刀治疗膝关节骨关节炎的思路与方法,并进行临床疗效观察。方法:对68例膝关节骨性关节炎患者采用"三步针刀法"解除腰部臀部肌肉张力,松解膝关节周围软组织的粘连以恢复膝关节功能。结果:有效率达97.06%,治疗前后膝关节综合功能评测差异显著(P<0.01)。结论:针刀三步疗法治疗膝骨关节炎疗效显著,安全可靠,是值得推荐的理想方法。

关键词：膝骨关节炎针刀疗法临床观察

白刺幼苗芽库及枝系构型对不同氮添加水平的响应

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林业科学研究 2018年第3期31卷 158-166页

作者：张俊菲李清河王林龙高明远孙高洁邢磊中国林业科学研究院林业研究所国家林业局林木培育重点实验室北京100091 中国林业科学研究院林业科技信息研究所北京100091

[目的]研究不同氮添加梯度下白刺幼苗芽库组成及空间结构的差异,探讨了幼苗的养分限制、氮素利用以及根系和插穗的品质与芽库的关联,阐明了白刺芽库响应氮素有效性所采取的适应性策略。[方法]本研究通过盆栽控制实验,对唐古特白刺幼苗... 详细信息

[目的]研究不同氮添加梯度下白刺幼苗芽库组成及空间结构的差异,探讨了幼苗的养分限制、氮素利用以及根系和插穗的品质与芽库的关联,阐明了白刺芽库响应氮素有效性所采取的适应性策略。[方法]本研究通过盆栽控制实验,对唐古特白刺幼苗的芽库特征进行了测量分析。[结果]氮添加显著增加了白刺幼苗芽和营养枝数量,显著降低了休眠芽和休眠枝数量,并对二级枝和三级枝出芽率具有明显促进作用;随着氮添加量的递增,营养枝有从基部向顶端移动趋势;氮平衡指数与白刺幼苗出芽强度、分枝强度、二级枝和三级枝出芽率均呈二次非线性正相关关系;植株氮含量、氮积累量和地下部分形态特征分别与芽和营养枝数量呈正相关关系,与休眠芽和休眠枝数量呈负相关关系。[结论]氮添加影响幼苗芽库容量。随着氮添加水平的提高,各指标多数在N3和N4处理达到最大值后逐渐降低,因此6个氮添加水平中36 mmol·L-1和48 mmol·L-1是白刺幼苗最适氮添加量。氮添加对幼苗芽库内组分的相对位置产生了不同影响趋势,所以白刺幼苗可以通过改变芽库容量和空间分布来响应养分有效性变化。

关键词：唐古特白刺氮添加芽库氮平衡指数氮积累量