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Spatio-temporal variations and influencing factors of energy-related carbon emissions for Xinjiang cities in China based on time-series nighttime light data

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Journal of Geographical Sciences 2022年第10期32卷 1886-1910页

作者： ZHANG Li LEI Jun WANG Changjian WANG Fei GENG zhifei zhou Xiaoli Xinjiang Institute of Ecology and Geography CASUrumqi 830011China University of Chinese Academy of Sciences Beijing 100049China Fujian Urban and Rural Planning&Design Institute Fuzhou 350003China Guangdong Provincial Key Laboratory of Remote Sensing and Geographical Information System Guangdong Open Laboratory of Geospatial Information Technology and ApplicationGuangzhou Institute of GeographyGuangdong Academy of SciencesGuangzhou 510070China School of Resources and Planning Guangzhou Xinhua UniversityGuangzhou 510520China Suzhou Honglan Data Technology Co. LtdSuzhou 215000JiangsuChina Urumqi Meteorological Satellite Ground Station Urumqi 830011China

This essay combines the Defense Meteorological Satellite Program Operational Linescan System(DMSP-OLS)nighttime light data and the Visible Infrared Imaging Radiometer Suite(VIIRS)nighttime light data into a“synthetic DMSP”dataset,from 1992 to 2020,to retrieve the spatio-temporal variations in energy-related carbon emissions in Xinjiang,***,this paper analyzes several influencing factors for spatial differentiation of carbon emissions in Xinjiang with the application of geographical detector *** reveal that(1)total carbon emissions continued to grow,while the growth rate slowed down in the past five years.(2)Large regional differences exist in total carbon emissions across various *** carbon emissions of these regions in descending order are the northern slope of the Tianshan(Mountains)>the southern slope of the Tianshan>the three prefectures in southern Xinjiang>the northern part of Xinjiang.(3)Economic growth,population size,and energy consumption intensity are the most important factors of spatial differentiation of carbon *** interaction between economic growth and population size as well as between economic growth and energy consumption intensity also enhances the explanatory power of carbon emissions’spatial *** paper aims to help formulate differentiated carbon reduction targets and strategies for cities in different economic development stages and those with different carbon intensities so as to achieve the carbon peak goals in different steps.

关键词： carbon emissions nighttime light data spatio-temporal variations influencing factors Xinjiang

Feature Fusion Multi_XMNet Convolution Neural Network for Clothing Image Classification

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Journal of Donghua University(English Edition) 2021年第6期38卷 519-526页

作者： zhou Honglei PENG zhifei TAO Ran ZHANG Lu College of Fashion and Design Donghua University Shanghai 200051 China School of Computer Science and Technology Donghua University Shanghai 201620 China

Faced with the massive amount of online shopping clothing images,how to classify them quickly and accurately is a challenging task in image *** this paper,we propose a novel method,named Multi_XMNet,to solve the clothing images classification *** proposed method mainly consists of two convolution neural network(CNN)*** branch extracts multiscale features from the whole expressional image by Multi_X which is designed by improving the Xception network,while the other extracts attention mechanism features from the whole expressional image by MobileNetV3-small *** multiscale and attention mechanism features are aggregated before making ***,in the training stage,global average pooling(GAP),convolutional layers,and softmax classifiers are used instead of the fully connected layer to classify the final features,which speed up model training and alleviate the problem of overfitting caused by too many *** comparisons are made in the public DeepFashion *** experimental results show that the classification accuracy of this method is 95.38%,which is better than InceptionV3,Xception and InceptionV3_Xception by 5.58%,3.32%,and 2.22%,*** proposed Multi_XMNet image classification model can help enterprises and researchers in the field of clothing e-commerce to automaticly,efficiently and accurately classify massive clothing images.

关键词： feature extraction feature fusion multiscale feature convolution neural network(CNN) clothing image classification

Role of calcium mobilization in the regulation of spontaneous transient outward currents in porcine coronary artery myocytes

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Science China(Life Sciences) 2007年第5期50卷 660-668页

作者： LI PengYun ZENG XiaoRong YANG Yan CAI Fang LIU zhifei LI MiaoLing PEI Jie zhou Wen Institute of Myocardial Electrophysiology Luzhou Medical College Luzhou 646000 China

The purpose of the present study was to further study the characteristics and regulation of spontaneous transient outward currents(STOCs)in freshly isolated porcine coronary artery smooth muscle cells(ASMCs).STOCs were recorded using the perforated whole-cell patch-clamp *** were voltage-dependent and superimposed stochastically onto whole-cell Ca^(2+)-activated-K+(BKCa)***(ChTX,200 nmol/L),a selective blocker of BKCa channels,completely inhibited STOCs within 10 *** activity was greatly suppressed when extracellular Ca^(2+)concentration decreased from 1.8 mmol/L to 200 nmol/L,further removal of Ca^(2+)abolished STOCs ***^(2+)ionophore A23187(10μmol/L)increased STOCs activity ***(20μmol/L)and CdCl2(200μmol/L),two kinds of organic L-type voltage-dependent Ca^(2+)channels(L-VDCCs)antagonists,had little effect on *** addition,the ryanodine receptors(RyRs)agonist caffeine(5 mmol/L)significantly activated *** of ryanodine(50μmol/L)to block RyRs abolished STOCs,subsequent washout of ryanodine or application of caffeine failed to reproduce STOCs *** of inositol 1,4,5-trisphosphate receptors(IP_(3)Rs)by 2APB(40μmol/L)greatly suppressed the activity of STOCs,application of caffeine(5 mmol/L)in the presence of 2APB caused a burst of outward currents followed by inhibition of *** results suggest that STOCs in porcine coronary ASMCs are mediated by BKCa *** Ca^(2+)is essential for STOCs activity,while Ca^(2+)entry through L-VDCCs has little effect on *** Ca^(2+)release induced by RyRs is responsible for the regulation of STOCs,whereas IP_(3)Rs might also be involved.

关键词： spontaneous transient outward currents inositol 1,4,5-trisphosphate coronary artery smooth muscle cells perforated patch-clamp tech-niques

De novo strategy with engineering a multifunctional bacterial cellulose-based dressing for rapid healing of infected wounds

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Bioactive Materials 2022年第7期7卷 212-222页

作者： Chen zhou zhifei Yang Xiaowei Xun Le Ma Zejing Chen Xiaoming Hu Xidong Wu Yizao Wan Haiyong Ao Jiangxi Key Laboratory of Nanobiomaterials&Institute of Advanced Materials East China Jiaotong UniversityNanchang330000China Department of Drug Safety Evaluation Jiangxi Testing Center of Medical DeviceNanchang330000China

The treatment and healing of infected skin lesions is one of the major challenges in *** solve this problem,collagen I(Col-I)and the antibacterial agent hydroxypropyltrimethyl ammonium chloride chitosan(HACC)were composited into the bacterial cellulose(BC)three-dimensional network structure by a novel membrane-liquid interface(MLI)culture,and a Col-I/HACC/BC(CHBC)multifunctional dressing was *** water absorption rate and water vapor transmission rate of the obtained CHBC dressing were 35.78±2.45 g/g and 3084±56 g m^(-2)⋅day^(-1),*** water retention of the CHBC dressing was significantly improved compared with the BC caused by the introduced Col-I and *** vitro results indicated that the combined advantages of HACC and Col-I confer on CHBC dressings not only have outstanding antibacterial properties against Staphylococcus aureus(***)compared with BC and CBC,but also exhibit better cytocompatibility than BC and HBC to promote the proliferation and spread of NIH3T3 cells and *** importantly,the results of in vivo animal tests demonstrated that the CHBC dressings fully promoted wound healing for 8 days and exhibited shorter healing times,especially in the case of wound *** skin regeneration effects and higher expression levels of collagen during infection were also shown in the CHBC *** believe that CHBC composites with favorable multifunctionality have potential applications as wound dressings to treat infected wounds.

关键词： Bacterial cellulose Quaternized chitosan Multifunctional dressing Antibacterial activity Healing promotion

Characteristics of Mumps Outbreaks in Four Fujian Province Schools

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Biomedical and Environmental Sciences 2024年第11期37卷 1324-1327页

作者： zhifei Chen Ruihong Wu Xiuhui Yang Yong zhou Weiyi Pan Dong Li Fujian Provincial Center for Disease Control and Prevention Fuzhou 350001FujianChina

Mumps is a prevalent respiratory infectious disease caused by the mumps virus and is characterized by swollen salivary glands,fever,and pain[1].The most effective preventive measure against this illness is vaccination with a live attenuated mumps-containing vaccine(MuCV).The globally preferred option is the trivalent measles,mumps,and rubella(MMR)vaccine,protecting against the mentioned diseases[2].Since 2008,China has incorporated MMR vaccination into its national immunization program;the Fujian Province implemented this strategy on April 1,2008,via introducing a one-dose MMR vaccination policy for children aged 18-24 *** initiative has significantly decreased the incidence of mumps in Fujian Province[3],with rates stabilizing at approximately 7.8-8.0 cases per 100,000 individuals between 2018 and 2019,which translates to roughly 3,000 cases reported annually.

关键词： annually Fujian mentioned

Empirical analysis of network measures for predicting high severity software faults

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Science China Earth Sciences 2016年第12期59卷 198-215页

作者： Lin CHEN Wanwangying MA Yuming zhou Lei XU Ziyuan WANG zhifei CHEN Baowen XU State Key Laboratory for Novel Software Technology Nanjing University School of Computer Science and Technology Nanjing University of Posts and Telecommunications

Network measures are useful for predicting fault-prone modules. However, existing work has not distinguished faults according to their severity. In practice, high severity faults cause serious problems and require further attention. In this study, we explored the utility of network measures in high severity faultproneness prediction. We constructed software source code networks for four open-source projects by extracting the dependencies between modules. We then used univariate logistic regression to investigate the associations between each network measure and fault-proneness at a high severity level. We built multivariate prediction models to examine their explanatory ability for fault-proneness, as well as evaluated their predictive effectiveness compared to code metrics under forward-release and cross-project predictions. The results revealed the following:(1) most network measures are significantly related to high severity fault-proneness;(2) network measures generally have comparable explanatory abilities and predictive powers to those of code metrics; and(3) network measures are very unstable for cross-project predictions. These results indicate that network measures are of practical value in high severity fault-proneness prediction.

关键词： network measures high severity fault-proneness fault prediction software metrics

Ultrasmall pH-responsive silicon phthalocyanine micelle for selective photodynamic therapy against tumo

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Journal of Innovative Optical Health Sciences 2022年第6期15卷 87-99页

作者： Yiming zhou Wenlong Zeng Mengxuan Wang Rui Li Xiuli Yue zhifei Dai Department of Biomedical Engineering College of Future Technology Peking UniversityBeijing 100871P.R.China School of Environment Harbin Institute of Technology Harbin 150001P.R.China

Targeted photodynamic therapy(TPDT)based on the photosensitizers responsive for tumor micr oenvironment is promising because of the better anti-tumor effect and less phototoxicity against normal tissue than the traditional *** based stimuli responsive photo-sensitizers have been widely explored for *** on the acidic microenvironments in solid tumors,an ultrasmall pH-responsive silicon phthalocyanine nanomicelle(PSN)(smaller than 10 nm)was designed for selective PDT of *** had high drug loading efficacy(more than 28%)and exhibited morphological transitions,enhanced fuorescence and improved singlet∞x-ygen yield under acidic *** was renal dlearable and could rapidly accumulate and be retained at tumor sites,achieving a tumor-inhibiting ffect better than phthalocyanine micelle without pH *** of mice treated with PSN for PDT were completely ablated without ***,we have developed a phthalocyanine-based pH responsive micelle with excellent tumor targeting ability,which is expected to realize the selective PDT of tumor.

关键词： Silicon phthalocyanine pH-responsive ultrasmall micelle tangeted photodynamic therapy

Effects of brain-derived neurotrophic factor on synapsin expression in rat spinal cord anterior horn neurons cultured in vitro

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Neural Regeneration Research 2010年第16期5卷 1243-1248页

作者： zhifei Wang Daguang Liao Changqi Li Department of Neurosurgery Third Xiangya Hospital Central South University Changsha 410013 Hunan Province China Department of Anatomy and Neurobiology Xiangya College of Medicine Central South University Changsha 410013 Hunan Province China

Brain-derived neurotrophic factor （BDNF） promotes synaptic formation and functional maturation by upregulating synapsin expression in cortical and hippocampal neurons. However, it remains controversial whether BDNF affects synapsin expression in spinal cord anterior horn neurons. Wistar rat spinal cord anterior horn neurons were cultured in serum-supplemented medium containing BDNF, BDNF antibody, and Hank＇s solution for 3 days, and then synapsin I and synaptophysin protein and mRNA expression was detected. Under serum-supplemented conditions the number of surviving neurons in the spinal cord anterior horn was similar among BDNF, anti-BDNF, and control groups （P 〉 0.05）. Synapsin I and synaptophysin protein and mRNA expressions were increased in BDNF-treated neurons, but decreased in BDNF antibody-treated neurons （P 〈 0.01）. These results indicated that BDNF significantly promotes synapsin I and synaptophysin expression in in vitro-cultured rat spinal cord anterior horn neurons.

关键词： brain-derived neurotrophic factor synapsin I synaptophysin cell culture spinal cord neurons rats neural regeneration

聚(甲基氢-间二乙炔基苯硅烷)树脂及其复合材料的制备及性能

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功能材料 2015年第11期46卷 11027-11031,11038页

作者：徐志飞周权倪礼忠华东理工大学材料科学与工程学院特种功能高分子材料及相关技术教育部重点实验室上海200237

采用格氏试剂法和氨解法,合成了一种新型耐高温聚(甲基氢-间二乙炔基苯硅烷)树脂(PMNS),利用FT-IR和DSC研究了树脂的固化行为,通过TGA考察了树脂固化物的耐热性能,并对复合材料的力学性能、断面形貌和耐水性能进行了研究。结果表明,PMN... 详细信息

采用格氏试剂法和氨解法,合成了一种新型耐高温聚(甲基氢-间二乙炔基苯硅烷)树脂(PMNS),利用FT-IR和DSC研究了树脂的固化行为,通过TGA考察了树脂固化物的耐热性能,并对复合材料的力学性能、断面形貌和耐水性能进行了研究。结果表明,PMNS树脂溶于大多数有机溶剂中,可在低温条件下固化,PMNS树脂固化物在氮气氛围下Td5(质量损失5%的温度)达到670℃,1 000℃的质量保留率为90.7%;常温下复合材料的弯曲强度达到412 MPa,玻璃化转变温度高于400℃,具有优异的热稳定性能和耐水性能。

关键词：固化行为合成复合材料力学性能