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A review on radio based activity recognition

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Digital Communications and Networks 2015年第1期1卷 20-29页

作者： shuangquan Wang Gang zhou Computer science Department College of William and Mary McGlothlin-Street HallCollege of William and Mary Institute of Computing Technology Chinese Academy of SciencesNo. 6 Kexueyuan South Road Zhongguancun

Recognizing human activities in their daily living enables the development and widely usage of human-centric applications, such as health monitoring, assisted living, etc. Traditional activity recognition methods often rely on physical sensors(camera, accelerometer, gyroscope, etc.) to continuously collect sensor readings, and utilize pattern recognition algorithms to identify user's activities at an aggregator. Though traditional activity recognition methods have been demonstrated to be effective in previous work, they raise some concerns such as privacy,energy consumption and deployment cost. In recent years, a new activity recognition approach,which takes advantage of body attenuation and/or channel fading of wireless radio, has been proposed. Compared with traditional activity recognition methods, radio based methods utilize wireless transceivers in environments as infrastructure, exploit radio communication characters to achieve high recognition accuracy, reduce energy cost and preserve user's privacy. In this paper, we divide radio based methods into four categories: ZigBee radio based activity recognition, WiFi radio based activity recognition, RFID radio based activity recognition, and other radio based activity recognition. some existing work in each category is introduced and reviewed in detail. Then, we compare some representative methods to show their advantages and disadvantages. At last, we point out some future research directions of this new research topic.

关键词： Activity recognition Radio Zigbee WiFi RFID

Efficacy and safety of Duloxetine on Osteoarthritis Knee Pain:A Meta-analysis of Randomized Controlled Trials

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Efficacy and Safety of Duloxetine on Osteoarthritis Knee Pai...

Moisture Origins and Transport Processes for the 2020 yangtze River Valley Record-Breaking Mei-yu Rainfall

2016年广东省药师周大会

作者： Z.y.Wang s.y.shi s.J.Li F.Chen J H Zheng H.Z.Lin W zhou J.M.Lin Guangdong Province Key Laboratory for Biotechnology Drug Candidates School of Biosciences and BiopharmaceuticsGuangdong Pharmaceutical University Department of Pharmacy Zhujiang HospitalSouthern Medical University Department of Pharmacy Yue Bei people's HospitalShantou University Pharmaceutical Research & Development Zhujiang HospitalSouthern Medical University

Objectives:The aim of this meta-analysis was to evaluate the efficacy and safety of duloxetine for management of osteoarthritis knee(OAK) ***:A systematic literature search of articles for management of OAK using duloxetine were performed in Pub Med,EBsCO,EMBAsE,science Direct,MEDLINE,Clinical ***,Google scholar,and Cochrane Central Register of Controlled Trials from the available date of inception until the latest issue(October 2013).Potentially relevant randomized controlled trials(RCTs) regarding to comparison of efficacy and safety of duloxetine with placebo for managing OAK pain were ***,studies with specific data regarding to pain reductions and response rate,PGI-I,functional improvement,Western Ontario and Mc Master Osteoarthritis Index(WOMAC),adverse events,TEAEs,mortality were included and analyzed,and those with confounding conditions were *** were assessed for quality using the Jadad 5-point score for ***,a meta-analysis of all RCTs eligible for inclusion criteria was performed using Review Manager 5.1 meta-analysis ***:Three RCTs that enrolled 1,011 patients were included in our *** were statistically significant differences between patients taking duloxetine and those taking placebo with regard to the reductions in pain intensity [992 patients,mean difference(MD) =-0.88,95% confidence interval(CI)-1.11 to-0.65,p

关键词： duloxetine osteoarthritis knee pain meta-analysis randomized controlled trials

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Advances in Atmospheric sciences 2021年第12期38卷 2125-2136页

作者： Lixia ZHANG Dan ZHAO Tianjun zhou Dongdong PENG Chan XIAO state Key Laboratory of Numerical Modeling for Atmospheric sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China University of the Chinese Academy of sciences Beijing 100049China Institute of Tropical and Marine Meteorology China Meteorological AdministrationGuangzhou 510640China National Climate Center China Meteorological AdministrationBeijing 100081China

The summer of 2020 recorded a record-breaking flood due to excessive mei-yu rain falling over the yangtze River Valley(yRV).Using the Lagrangian model FLEXPART,this paper investigates moisture sources and transport processes behind this extreme *** on climate data from 1979 to 2019,the air-particle(an infinitesimally small air parcel)trajectories reaching the yRV show sectors that correspond to five main moisture sources:the Indian monsoon region(IND,27.5%of the total rainfall),the local evaporation(27.4%),the Western Pacific Ocean(WPO,21.3%),the Eurasian continent(8.5%)and Northeast Asia(4.4%).In the 2020 mei-yu season,moisture from all source regions was above normal except that from Northeast Asia.A record-breaking moisture source from the IND and WPO dominated this extreme mei-yu flood in 2020,which was 1.5 and 1.6 times greater than the climate mean,*** study reveals a significant relationship between the moisture source with three moisture transport processes,i.e.,trajectory density,moisture content,and moisture uptake of air-particles.A broad anomalous anticyclonic circulation over the Indo-Northwestern Pacific(Indo-NWP)provides a favorable environment to enhance the moisture transport from the IND and WPO into the *** the 2020 mei-yu season,a record-breaking Indo-NWP anomalous anticyclonic circulation contributed to a higher trajectory density as well as higher moisture content and moisture uptake of air-particles from the IND and WPO *** collectively resulted in unprecedented moisture transport from source origins,thus contributing to the mei-yu flood over the yRV in 2020.

关键词： mei-yu flood FLEXPART moisture tracking extreme moisture transport

Two Inhibitors Against the 3C-Like Proteases of swine Coronavirus and Feline Coronavirus

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Virologica sinica 2021年第6期36卷 1421-1430页

作者： Mengxin zhou yutong Han Mengxia Li Gang ye Guiqing Peng state Key Laboratory of Agricultural Microbiology College of Veterinary MedicineHuazhong Agricultural UniversityWuhan430070China Key Laboratory of Preventive Veterinary Medicine in Hubei Province The Cooperative Innovation Center for Sustainable Pig ProductionWuhan430070China

Coronaviruses(CoVs)are important human and animal pathogens that cause respiratory and gastrointestinal *** epidemic diarrhoea(PED),characterized by severe diarrhoea and vomiting in pigs,is a highly lethal disease caused by porcine epidemic diarrhoea virus(PEDV)and causes substantial losses in the swine industry ***,currently available commercial drugs have not shown great therapeutic *** this study,a fluorescence resonance energy transfer(FRET)-based assay was applied to screen a library containing 1,590 compounds and identified two compounds,3-(aminocarbonyl)-1-phenylpyridinium and 2,3-dichloronaphthoquinone,that target the 3C-like protease(3CL^(pro))of *** compounds are of low molecular weight(MW)and greatly inhibited the activity of this enzyme(IC_(50) values were obtained in this study).Furthermore,these compounds exhibited antiviral capacity against another member of the CoV family,feline infectious peritonitis virus(FIPV).Here,the inhibitory effects of these compounds against CoVs on Vero cells and feline kidney cells were identified(with EC_(50) values)and cell viability assays were *** results of putative molecular docking models indicate that these compounds,labeled compound 1 and compound 2,contact the conserved active sites(Cys144,Glu165,Gln191)of 3CL^(pro) via hydrogen *** findings provide insight into the antiviral activities of compounds 1 and 2 that may facilitate future research on anti-CoV drugs.

关键词： Coronavirus(CoVs) Inhibitor 3C-like Protease Porcine epidemic diarrhoea virus(PEDV) Feline infectious peritonitis virus(FIPV)

Thermoelectric transport properties of Pb-sn-Te-se system

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Rare Metals 2018年第4期37卷 343-350页

作者： Bing-Chao Qin yu Xiao yi-Ming zhou Li-Dong Zhao school of Materials science and Engineering Beihang University Beijing 100191 China

IV-VI compounds are considered as promising thermoelectric materials, and high thermoelectric performance was achieved in IV-VI solid solutions. In this work, the thermoelectric properties of Pb-sn-Te-se-based solid solutions were systematically investigated. Among these solid solutions, it is found that a figure of merit （ZT） peak value of 1.0 at 873 K can be obtained in （PbTe）0.5（snTe）o.5, on account of the combination of superior electrical properties in snTe and low thermal conductivity in PbTe. Furthermore, we investigated and summarized the thermoelectric transport properties and proposed the thermoelectric performance maps for the IV- VI solid solutions in Pb-sn-Te-se system. This comprehensive investigation on Pb-sn-Te-se-based solid solutions can effectively guide and scan thermoelectric performance for a given unknown composition and enhance the thermoelectric properties in IV-VI compounds.

关键词： Thermoelectric materials Electricalconductivity Thermal conductivity Pb-sn-Te-se system solid solutions

Applications of scale-adaptive simulation technique based on one-equation turbulence model

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Applied Mathematics and Mechanics(English Edition) 2015年第1期36卷 121-130页

作者： Chang-yue XU Tao zhou Cong-lei WANG Jian-hong sUN College of Aerospace Engineering Nanjing University of Aeronautics & Astronautics

A modified scale-adaptive simulation （sAs） technique based on the spalart- Allmaras （sA） model is proposed. To clarify its capability in prediction of the complex turbulent flow, two typical cases are carried out, i.e., the subcritical flow past a circular cylinder and the transonic flow over a hemisphere cylinder. For comparison, the same cases are calculated by the detached-eddy simulation （DEs）, the delayed-detached eddy simulation （DDEs）, and the Xy-sAs approaches. some typical results including the mean pressure coefficient, velocity, and Reynolds stress profiles are obtained and compared with the experiments. Extensive calculations show that the proposed sAs technique can give better prediction of the massively separated flow and shock/turbulent-boundary-layer interaction than the DEs and DDEs methods. Furthermore, by the comparison of the Xy-sAs model with the present sAs model, some improvements can be obtained.

关键词： turbulence detached-eddy simulation scale-adaptive simulation cylinder

Debranching enzymes decomposed corn arabinoxylan into xylooligosaccharides and achieved prebiotic regulation of gut microbiota in broiler chickens

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Journal of Animal science and Biotechnology 2023年第4期14卷 1485-1500页

作者： Wei Wu Huajin zhou yanhong Chen yuming Guo Jianmin yuan state Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural University2 Yuanmingyuan West RoadHaidian DistrictBeijing 100193PR China

Background Corn arabinoxylan(AX)is a complicated and multibranched antinutritional factor,thereby proving the use of endo-xylanase(EX)to be marginally *** study focused on specific types of AX-degrading enzymes(ADEs)to exert the synergy of debranching enzymes and track the prebiotic potential of enzymatic *** study investigated the effects of ADEs on the growth performance,intestinal histomorphology,absorption functions,changes in polysaccharide components,fermentation,and gut microbiota of broiler *** hundred seventysix five-day-old Arbor Acres male broiler chickens were randomly allocated into eight treatments with six replicates *** basal diets supplemented with or without enzymes were fed for a 21-day period,specifically including EX,its compatible use with arabinofuranosidase(EXA)or ferulic acid esterase(EXF),and compound groups with the above three enzymes(XAF).Results specific ADEs stimulated the jejunal villus height and goblet cell number and evidently decreased the crypt depth(Ps height to crypt depth was significantly increased in EXF(Pse activities of ileal mucosa in XAF groups were extremely enhanced(Psted the activity of Na+-K+ATPase in the small intestine(Psoluble AX concentrations comparatively lessened,thereby notably raising the sundry xylooligosaccharide(XOs)yield in the ileal chyme(Ps dominant in xylobiose and *** in the abundance and diversity of ileal microbial communities within the EXA,EXF,and XAF treatments were observed(Psitive correlations between microbiota and XOs were revealed,with xylobiose and xylotriose being critical for ten beneficial bacteria(Psed the BWG and FCR of broiler chickens in this phase(Ps attributed to the thriving networks modified by *** intracecal contents of acetic acid,butyric acid,and propionic acid were greatly

关键词： Arabinoxylan Corn Prebiotic specific xylanase Xylooligosaccharide

The raphe nuclei are the early lesion site of gastric α-synuclein propagation to the substantia nigra

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Acta Pharmaceutica sinica B 2024年第5期14卷 2057-2076页

作者： Chenglu Zhang Ruxue Bo Tiantian zhou Naihong Chen yuhe yuan state Key Laboratory of Bioactive substances and Functions of Natural Medicines Chinese Academy of Medical Sciences&Peking Union Medical College Institute of Materia MedicaBeijing 100050China

Parkinson's disease(PD)is a neurodegeneration disease withα-synuclein accumulated in the substantia nigra pars compacta(sNpc)and most of the dopaminergic neurons are lost in sNpc while patients are diagnosed with *** the pathology at an early stage contributes to the development of the disease-modifying *** the“gut–brain”hypothesis is proposed to explain the underlying mechanism,where the earlier lesioned site in the brain of gastricα-synuclein and howα-synuclein further spreads are not fully *** we report that caudal raphe nuclei(CRN)are the early lesion site of gastricα-synuclein propagating through the spinal cord,while locus coeruleus(LC)and substantia nigra pars compacta(sNpc)were further affected over a time frame of 7 ***α-synuclein propagation via CRN leads to neuron loss and disordered neuron activity,accompanied by abnormal motor and non-motor *** neuron circuits are observed among CRN,LC,and sNpc,which contribute to the venerability of dopaminergic neurons in *** results show that CRN is the key region for the gastricα-synuclein spread to the *** study provides valuable details for the“gut–brain”hypothesis and proposes a valuable PD model for future research on early PD intervention.

关键词： Raphe nuclei α-synuclein Gastrointestinal tract Electrophysiology Locus coeruleus substantia nigra pars compacta Parkinson's disease spinal cord

A Corpus-Based Explanation of Metaphors in A House Divided

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Language and semiotic studies 2019年第4期5卷 108-127页

作者： Xia Zhao Wen zhou Jiangsu University of science and Technology China

since Lakoff and Johnson proposed conceptual metaphors in 1980,an increasing number of metaphor studies have occurred in different disciplines,however,few of them are found in literary works from a corpus *** this account,the study aims at revealing how meanings are constructed through conceptual metaphors in a *** selected the text version of A House Divided as the research data,which is one of the most important representative works of American writer Pearl ***,the winner of the Nobel Prize for *** the help of Word smith Tools 6.0 to retrieve them,we find that conceptual metaphors are pervasive in it and,among them,ontological metaphors occur most,followed by structural metaphors and orientation metaphors which occur *** ***’s cognitive contexts,as well as the Chinese social context in the 1930 s,may the key factors of her choice of metaphors in the writing.

关键词： A House Divided Corpus conceptual metaphor context