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2023 Guideline for the management of hypertension in the elderly population in china

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Journal of Geriatric Cardiology 2024年第6期21卷 589-630页

作者： Hypertension Branch of Chinese Geriatrics Society,Beijing Hypertension Association,National Clinical research center of the Geriatric Diseases Qi HUA Li FAN Zeng-Wu WANG Jing LI 不详 Xuanwu Hospital Capital Medical UniversityBeijingChina Chinese PLA General Hospital BeijingChina Fuwai Hospital Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina

Preamble Hypertension is one of the most common chronic diseases and the primary risk factor for stroke,myocardial infarction and even cardiovascular *** than half of the elderly population has high blood *** people are a unique group,and strategies for the prevention,diagnosis,evaluation,and treatment of hypertension in elderly individuals differ significantly from those in the general population.

关键词： hypertension prevention diagnosis

research on Methods of Ecological Security Assessment of the Middle and Lower Reaches of Liaohe River Based on GIS

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Chinese Journal of Population,Resources and Environment 2005年第4期3卷 20-25页

作者： Wang Geng 1,2 , Nie Baochi 3, Wang Lin 1 & Wu Wei 1 1. School of Environmental and Biological Science and technology, dalian university of technology, dalian 116024, china 2. Urban and Environmental School, Liaoning Normal university, dalian 116029, china 3. Shenyang Buraue of Water Resources, Shenyang 110013, china. School of Environmental and Biological Science and technology Oalian University of Technology Oalian 116024 China Urban and Environmental School Uaoning Nonnal University Oalian 116029 China Shenyang Buraue of Water Resources Shenyang 110013 China

Ecological security assessment and early warning research possess the attributes of spatiality, non-linearity and randomicity, so we must process much spatial information. Spatial analysis and data management are the advantages of GIS, which can define distribution trend and spatial relations of environmental factors, and show ecological security pattern graphically. Spatial differences of ecological security assessment based on GIS are discussed in this paper, of which the middle and lower reaches of the Liaohe River is taken as a study case. First, to work out pressure-state-response (P-S-R) assessment indicators system, and investigate in person and gather information; second, to digitize the watershed; third, to quantize and calculate by the fuzzy method; last, to construct GIS grid database, and expound spatial differences of ecological security by GIS interpolation and assembly analysis.

关键词： the middle and lower reaches of the Liaohe River ecological security assessment indicators system GIS spatial differences

Study on reservoir operation optimization of Ertan Hydropower Station considering GFS forecasted precipitation

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Science china(Technological Sciences) 2011年第S1期54卷 76-82页

作者： PENG Yong 1,WANG GuoLi 1,TANG GuoLei 1,ZHOU HuiCheng 1,WANG YaJun 2 & JIAN DePing 2 1 Institute of Water Resources and Flood control,dalian university of technology,dalian 116023,china 2 Ertan Hydropower Development Co.,Ltd.,Chengdu 610021,china Institute of Water Resources and Flood control Dalian University of Technology Dalian China Ertan Hydropower Development Co. Ltd. Chengdu China

The medium-term runoff forecasting provided new information for forecast of medium and long term runoff and optimal hydroelectric power *** to the actual runoff and hydropower generating characteristics of Ertan Hydropower Station,we studied the decade runoff quantitatively and grade forecast model based on Global Forecasting System(GFS) precipitation forecast information in wet season,then used the posteriori runoff transition probability and measurable probability of runoff forecast to research the uncertain runoff description based on runoff forecast;finally on the basis of the runoff description and the grading forecast accuracy of GFS-based next 10 days'total forecast precipitation,we studied the uncertain optimal operating model of Ertan Hydropower Station considering runoff *** results showed that the runoff forecast considering GFS forecast precipitation and uncertainty has significantly improved the existing runoff description and operating optimization model,and obviously raised the hydropower generation efficiency of Ertan Reservoir.

关键词： global forecasting system runoff forecasting runoff description uncertainty optimal operation

Er^(3+)-Yb^(3+) codoped borosilicate glass for optical thermometry

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Science china(Physics,Mechanics & Astronomy) 2010年第5期53卷 848-851页

作者： FENG ZhiQing1,BAI Lan2,CAO BaoSheng1,GONG LiDong3 & DONG Bin1,4 1 School of Science,dalian Nationalities university,dalian 116600,china 2 College of Electromechanical & information Engineering,dalian Nationalities university,dalian 116600,china 3 School of Chemistry and Chemical Engineering,dalian 116029,china 4 Institute of Physics,Chinese Academy of Sciences,Beijing 100190,china School of Science Dalian Nationalities University Dalian China College of Electromechanical & information Engineering Dalian Nationalities University Dalian China School of Chemistry and Chemical Engineering Dalian China Institute of Physics Chinese Academy of Sciences Beijing China

Infrared to green up-conversion emissions centered at the wavelengths of about 524 and 550 nm of the Er3+-Yb3+ codoped borosilicate glass are recorded,using a 978 nm semiconductor laser diode(LD) as an excitation *** fluorescence intensity ratio(FIR) of the green up-conversion emissions at about 524 and 550 nm in the Er3+-Yb3+ codoped borosilicate glass has been studied as a function of temperature over the temperature range of 295-873 *** maximum sensitivity and the temperature resolution derived from the FIR of the green up-conversion emissions are approximately 0.0038 K-1 and 0.2 K,*** is demonstrated that the prototype optical temperature sensor based on the FIR technique from the green up-conversion emissions in the Er3+-Yb3+ codoped borosilicate glass plays a major role in temperature measurement.

关键词： Er3+-Yb3+ codoped optical temperature sensor fluorescence intensity ratio

Microwave Disinfection in a Ventilation and Air-Conditioning System

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湖南大学学报（自然科学版） 2009年第S1期36卷 55-59页

作者： LU Zhen1,2,ZHANG Ji-li1,MA Liang-dong1,HE Juan3(1.School of Civil & Hydraulic Engineering,dalian university of technology,dalian,Liaoning 116023,china 2.Municipal and Environmental Engineering research center,Shenyang Jianzhu university,Shenyang,Liaoning 110168,china 3.School of Municipal & Environmental Engineering,Harbin Institute of technology,Harbin,Heilongjiang 150090,china) School of Civil and Hydraulic Engineering Dalian University of Technology Dalian 116023 China Municipal and Environmental Engineering research center Shenyang Jianzhu University Shenyang 110168 China School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin 150090 China

Because of its broad spectrum and high efficiency,the microwave disinfection was used to control the airborne microbial contaminates in VAC *** microwave disinfection devices were developed combined with air filter,the design and calculation method was presented,and the disinfection effects on White staphylococcus,Staphylococcus aureus,Bacillus Subtilis,Escherichi coli were *** results show that the major influence factors on disinfection effect are microwave power,water-content of filter material,disinfecting *** 15 min,the kill ratio is >90%,and the log value is >*** microwave field is uniform and the kill effect of bacteria on each surface of filter is the same,without statistically significant difference.

关键词： VAC system microwave disinfection airborne microbe microwave power kill ratio

DC dielectrophoresis separation of marine algae and particles in a microfluidic chip

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Science china Chemistry 2012年第4期55卷 524-530页

作者： SONG YongXin1, YANG JianDong1, SHI XiaoFei4, JIANG Hai3, WU YanBin1, PENG Ran1, WANG Qi5, GONG Ning2, PAN XinXiang1, SUN YeQing2 & LI DongQing1,31Department of Marine Engineering, dalian Maritime university, dalian 116026, china 2Institute of Environmental Systems Biology, dalian Maritime university, dalian 116026, china 3Department of Mechanical and Mechatronics Engineering, university of Waterloo, Waterloo, ON, N2L 3G1, Canada 4College of information Science and technology, dalian Maritime university, dalian 116026, china 5Department of Respiratory Medicine, the Second Hospital Affiliated to dalian Medical university, dalian 116026, china Department of Marine Engineering Dalian Maritime University Dalian China College of information Science and technology Dalian Maritime University Dalian China Department of Mechanical and Mechatronics Engineering University of Waterloo Waterloo Canada Department of Respiratory Medicine the Second Hospital Affiliated to Dalian Medical University Dalian China Institute of Environmental Systems Biology Dalian Maritime University Dalian China

This paper reports a microfluidic method of continuous separation of marine algae and particles by DC dielectrophoresis. The locally non-uniform electric field is generated by an insulating PDMS triangle hurdle fabricated within a PDMS microchannel. Both the particles and algae are subject to negative DEP forces at the hurdle where the gradient of local electric-field strength is the strongest. The DEP force acting on the particle or the algae depends on particles' or algae's volume, shape and dielectric properties. Thus the moving particles and algae will be repelled to different streamlines when passing the hurdle. In this way, combined with the electroosmotic flow, continuous separation of algae of two different sizes, and continuous separation of polystyrene particles and algae with similar volume but different shape were achieved. This first demonstration of DC DEP separation of polystyrene particles and algae with similar sizes illustrates the great influence of dielectric properties on particle separation and potentials for sample pretreatment.

关键词： DC dielectrophoresis – marine algae – particle – microfluidic chip – permittivity difference

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频率管理系统在短波通信中的应用研究

系统工程与电子技术 2003年第10期25卷 1236-1238页

作者：丛蓉孙剑平李恺大连理工大学电子与信息技术学院海军大连舰艇学院指控系辽宁大连116018

短波通信是目前海上舰船实施远程通信的重要手段。为了克服各种因素对短波通信的干扰 ,保障岸台与海上舰船之间远程通信的实时畅通 ,提出了将频率管理系统运用于海上短波通信中 ,实现短波通信网络动态频率管理的新思路。通过对短波频率... 详细信息

短波通信是目前海上舰船实施远程通信的重要手段。为了克服各种因素对短波通信的干扰 ,保障岸台与海上舰船之间远程通信的实时畅通 ,提出了将频率管理系统运用于海上短波通信中 ,实现短波通信网络动态频率管理的新思路。通过对短波频率管理系统结构进行分析 ,阐述了短波通信动态频率管理中的关键实现技术。

关键词：短波通信频率管理动态管理

Automated 3D Scenes Reconstruction for Mobile Robots Using Laser Scanning

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Automated 3D Scenes Reconstruction for Mobile Robots Using L...

Sensing Time Optimization in Energy-Harvesting Cognitive Radio with Interference Rate control

2009中国控制与决策会议

作者： Zheng Keqiang,Zhuang Yan,Wang Wei research center of information and control,dalian university of technology,dalian 116024

＜正＞The fast reconstruction for 3D environment is a challenging work for autonomous mobile *** paper presents an automated 3D scenes reconstruction method based on ICP *** to the order relations of 3D laser scanning,an effective edge feature extraction method is proposed to extract the edge points in the 3D *** edge points instead of the initial points are used in pairs matching in the course of ICP registration,which can reduce the computational burden significantly.A 3D-grid-division method is adopted to reduce the redundant data points in the overlapping areas of multiple *** data points are distributed into small voxels and the point nearest to the center is extracted to reconstruct a new *** to the reduced points in the reconstructed scene,digitalization of 3D environment is implemented by using 3D grids and surface meshes.A series of experiment results and data analysis show the method’s validity and practicability.

关键词： mobile robots edge extraction scenes reeistration data reduction 3D scenes reconstruction

来源： cnki会议评论

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china Communications 2016年第1期13卷 47-56页

作者： DENG Zhian LIU Xin JIA Min LU Weidang School of information Science and technology Dalian Maritime University School of information and Communication Engineering Dalian University of Technology Communication research Centre Harbin Institute of Technology College of information Engineering Zhejiang University of Technology

In this paper,an energy-harvesting cognitive radio(CR) is considered,which allows the transmitter of the secondary user(SU) to harvest the primary signal energy from the transmitter of the primary user(PU) when the presence of the PU is *** the harvested energy is converted into the electrical power to supply the transmission of the SU at the detected absence of the *** adopting the periodic spectrum sensing,the average total transmission rate of the SU is maximized through optimizing the sensing time,subject to the constraints of the probabilities of false alarm and detection,the harvested energy and the interference rate *** simulation results show that there deed exists an optimal sensing time that maximizes the transmission rate,and the maximum transmission rate of the energy-harvesting CR can better approach to that of the traditional CR with the increasing of the detection probability.

关键词： cognitive radio spectrum sensing energy detection energy harvest transmission rate