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Co_(3)O_(4)/stainless steel catalyst with synergistic effect of oxygen vacancies and phosphorus doping for overall water splitting

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Tungsten 2023年第1期5卷 100-108页

作者： xiao-xiao Li xiao-Chao Liu Chao Liu Jin-Ming Zeng xiao-peng qi College of Rare Earth Jiangxi University of Science and TechnologyGanzhou 341000China Faculty of Materials Metallurgy and Chemistry Jiangxi University of Science and TechnologyGanzhou 341000China

The electrolysis of water into hydrogen and oxygen provides an effective means of storing electrical energy *** current challenge is to design an optimal catalyst that exhibits low overpotentials,long-term stability,universal availability,and only uses inexpensive ***,a Co3O4nanoflower/stainless steel(P-Ov-CO_(3)O_(4)/SS) catalyst with both oxygen vacancies(Ovs) and phosphorus doping was perfectly prepared via a simple three-step *** Ovs promoted charge transfer and accelerated the electrocatalysis,while P finely tuned the surface charge *** resulted in numerous active sites for catalysis,and the synergistic effect of phosphorus doping and oxygen vacancies was finely *** resultant electrocatalyst exhibited low hydrogen evolution overpotentials of 118 mV(-10 mA·cm^(-2)) and 242(-200 mA·cm^(-2)),as well as oxygen evolution overpotentials of 327 mV(100 mA·cm^(-2)) and 370 mV(200 mA·cm^(-2)),owing to the excellent synergistic effect of the Ovs and low-temperature ***,P-Ov-Co_(3)O_(4)/SS//P-Ov-Co_(3)O_(4)/SS exhibited a low water splitting voltage of 1.681 V at 20 *** findings will enable the synthesis of novel high-performance electrocatalysts for overall water splitting.

关键词： Oxygen vacancy Phosphorus doping P-Ov-Co_(3)O_(4)/SS Overall water splitting

Utilization of Alternative Polyadenylation Signals in the Novel Human Apoptosis-Inducing Gene hap

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Wuhan University Journal of Natural Sciences 2001年第4期6卷 867-872页

作者： Qu xiao-ling qi Yi-peng qi Bing Institute of Virology Wuhan University Wuhan China

hap, a novel human apoptosis-inducing gene which can interact with another newly discovered apoptosis-inducing geneASY, was identified, by cloning its cDNAs from human lung cell line (WI-38) cDNA library. Two major mRNA species (1.8 and 2.7 kb in length, respectively) were previously identified by Northern blot analysis of poly(A)+ RNA from human multiple tissues using partialhap cDNA as a probe. In the present work, the molecular mechanism accounting for the generation of the twohap transcripts were investigated. The rapid amplification of cDNA 3′-ends (3′-RACE) technique and the sequential Southern blot analysis, in conjunction with the sequencing analysis demonstrated that the twohap transcripts derive from the alternative polyadenylation site selection: a AATAAA signal at position 1 528–1 533 nt for the 1.8 kbhap mRNA: and a AATAAA signal at position 2 375–2 380 nt for the 2.7 kbhap mRNA. Furthermore, a number of regulatory elements withinhap 3′-untranslated region (3′-UTR) were also examined.

关键词： apoptosis-inducing genehap polyadenylation signal regulatory element 3′ untranslated region (3′-UTR)

Conceptual Model for Automatic Early Warning Information System of Infectious Diseases Based on Internet Reporting Surveillance System

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Biomedical and Environmental Sciences 2007年第3期20卷 208-211页

作者： JIA-qi MA LI-PING WANG xiao-peng qi xiao-MING SHI GONG-HUAN YANG National Center for Public Health Surveillance and Information Services Chinese Center for Disease Control and Prevention Beijing 100050 China

Objective To establish a conceptual model of automatic early warning of infectious diseases based on internet reporting surveillance system, with a view to realizing an automated warning system on a dally basis and timely identifying potential outbreaks of infectious diseases. Methods The statistic conceptual model was established using historic surveillance data with movable percentile method. Results Based on the infectious disease surveillance information platform, the conceptual model for early warning was established. The parameter, threshold, and revised sensitivity and specificity of early warning value were changed to realize dynamic alert of infectious diseases on a dally basis. Conclusion The instructive conceptual model of dynamic alert can be used as a validating tool in institutions of infectious disease surveillance in different districts.

关键词： Infectious disease Automated warning Information system

Frequency, Duration and Intensity of Dengue Fever Epidemic Risk in Townships in Pearl River Delta and Yunnan in China, 2013

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Biomedical and Environmental Sciences 2015年第5期28卷 388-395页

作者： CHEN qian qian MENG Yu Jie LI Yue qi xiao peng National Center for Public Health Surveillance and Information Services Chinese Center for Disease Control and Prevention

Dengue fever （DF）, one of the neglected tropical diseases also known as breakbone fever, is a mosquito-borne disease common in the tropics and subtropics. Dengue fever is transmitted primarily by ***, resulting in infection with any of four distinct but closely related virus serotypes. The majority of infected people experience a self-limiting clinical course. A small proportion of cases develop into life-threatening Dengue Hemorrhagic Fever or Dengue Shock Syndrome.

关键词： Duration and Intensity of Dengue Fever Epidemic Risk in Townships in Pearl River Delta and Yunnan in China Frequency

A comparison of core–shell Si/C and embedded structure Si/C composites as negative materials for lithium-ion batteries

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Rare Metals 2021年第9期40卷 2440-2446页

作者： Shuai-Jin Wu Zhao-Hui Wu Sheng Fang xiao-peng qi Bing Yu Juan-Yu Yang Grinm Group Co. Ltd.Beijing 100088China General Research Institute for Nonferrous Metals Beijing 100088China China Automotive Battery Research Institute Co. Ltd.Beijing 101407China

Silicon materials have attracted wide attention as negative materials due to exceptional gravimetric capacity and abundance. The strategy of using nano-silicon materials as structural units to construct nano/micro-structured silicon-based negative materials for lithium-ion batteries has come into sight in recent years. In order to provide guidance for the material structure design of micro-sized silicon-based negative materials in practical application, in this work, two commercialized nano/micro-structured silicon-based negative materials with a specific capacity of about 650 mAh·g^(-1) were investigated and compared in the aspects of material microstructure, electrochemical performance of half cells, and electrode morphological evolution during cycling. The cycling performance(with capacity retention ratio of about 17% higher after 100 cycles) and electrode structure maintenance of the embedded structure Si/C material are superior to those of core–shell Si/C material. This research can provide guidance on design and application of nano/micro-structured silicon-based negative materials.

关键词： Lithium-ion battery Negative materials Silicon-based materials Material structure

Impact of COVID-19 Pandemic on the Mental Health of Returning Employees in Labor-Intensive Companies:A Study Based on Repeated Surveys

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Biomedical and Environmental Sciences 2022年第6期35卷 568-572页

作者： LIU Yu WANG xiao Feng XI Jun Yan xiao qi peng HE Li Ping LU Ci Yong HE Ling School of Public health Xiangnan UniversityChenzhou 423001HunanChina Department of Medical Statistics School of Public HealthSun Yat-sen UniversityGuangzhou 510080GuangdongChina Department of Epidemiology School of Public HealthSun Yat-Sen UniversityGuangzhou 510080GuangdongChina School of Educational Sciences Xiangnan UniversityChenzhou 423001HunanChina School of Educational Sciences Hunan Normal UniversityChangsha 410081HunanChina

In December 2019,an outbreak of COVID-19 occurred in Wuhan City in Hubei Province of *** Hunan Province launched a Level 1 public health emergency response on January 24,*** City,located in the southernmost part of Hunan Province,bordering Guangdong Province and Jiangxi Province,has formed an agglomeration zone for processing trade and laborintensive *** the beginning of the outbreak,most businesses in this region suspended production,and they resumed production gradually after February 10,2020.

关键词： Hunan resume Impact

The homogenous growth of Co-based coordination compound on graphene nanosheet for high-performance K-organic battery and its reaction mechanism

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Rare Metals 2024年第4期43卷 1622-1634页

作者： qian-qian peng Yi-Ting Wang Shuo qi Yao xiao Yong Wang Shuang-qiang Chen School of Environmental and Chemical Engineering Shanghai UniversityShanghai200444China School of Chemistry and Materials Engineering Wenzhou UniversityWenzhou325035China

Metal coordination compounds(MCCs)are gaining popularity for potassium-ion batteries(PIBs)owing to their tuneable structure,multiple reaction sites,low cost and unique ***,they are generally subjected to intrinsic features of the sluggish ionic diffusion coefficient,low electronic conductivity and slow ***,a new MCC material of cobalt-1,3,5-trioxy-2,4,6-triamino-benzo(Co-TB)coordination compound was synthesized and homogenously grown on the surface of graphene nanosheets(GNS),forming a Co-TB@GNS composite with enhanced electronic conductivity and flexible *** from the overall enhanced conductivity,high surface area and abundant activated K-storage sites,Co-TB@GNS electrodes have exhibited superior cycling performance with high reversible capacities(312 mAh·g^(-1)after 100 cycles at 100 mA·g^(-1),224 mAh·g^(-1)after 500 cycles at 1 A·g^(-1))and better rate performances compared with the pure Co-TB compound when served as PIB's ***,multiple in-situ measurement techniques have jointly confirmed that the organic functional groups(C=O,C=N and C=C of benzene rings)and Co^(2+)in Co-TB are the main reversible K-storage sites,including in-situ Fourier transform infrared spectroscopy(FTIR)and X-ray diffraction(XRD),and partial capacity contribution is originated from GNS by the apparent K-storage behavior in the in-situ XRD pattern,proving the possibility of K-storage for metal-organic materials.

关键词： Metal coordination compounds Potassiumion battery Cobalt coordination compound K-storage mechanism

CrossLinkNet: An Explainable and Trustworthy AI Framework for Whole-Slide Images Segmentation

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Computers, Materials & Continua 2024年第6期79卷 4703-4724页

作者： peng xiao qi Zhong Jingxue Chen Dongyuan Wu Zhen qin Erqiang Zhou Network and Data Security Key Laboratory of Sichuan Province University of Electronic Science and Technology of ChinaChengdu610054China Faculty of Data Science City University of MacaoMacao999078China

In the intelligent medical diagnosis area,Artificial Intelligence(AI)’s trustworthiness,reliability,and interpretability are critical,especially in cancer *** neural networks,while excellent at processing natural images,often lack interpretability and adaptability when processing high-resolution digital pathological *** limitation is particularly evident in pathological diagnosis,which is the gold standard of cancer diagnosis and relies on a pathologist’s careful examination and analysis of digital pathological slides to identify the features and progression of the ***,the integration of interpretable AI into smart medical diagnosis is not only an inevitable technological trend but also a key to improving diagnostic accuracy and *** this paper,we introduce an innovative Multi-Scale Multi-Branch Feature Encoder(MSBE)and present the design of the CrossLinkNet *** MSBE enhances the network’s capability for feature extraction by allowing the adjustment of hyperparameters to configure the number of branches and *** CrossLinkNet Framework,serving as a versatile image segmentation network architecture,employs cross-layer encoder-decoder connections for multi-level feature fusion,thereby enhancing feature integration and segmentation *** quantitative and qualitative experiments on two datasets demonstrate that CrossLinkNet,equipped with the MSBE encoder,not only achieves accurate segmentation results but is also adaptable to various tumor segmentation tasks and scenarios by replacing different feature ***,CrossLinkNet emphasizes the interpretability of the AI model,a crucial aspect for medical professionals,providing an in-depth understanding of the model’s decisions and thereby enhancing trust and reliability in AI-assisted diagnostics.

关键词： Explainable AI security trustworthy CrossLinkNet whole slide images

Assessment of the Benefits of Targeted Interventions for Pandemic Control in China Based on Machine Learning Method and Web Service for COVID-19 Policy Simulation

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Biomedical and Environmental Sciences 2022年第5期35卷 412-418页

作者： WU Jie Wen JIAO xiao Kang DU Xin Hui JIAO Zeng Tao LIANG Zuo Ru PANG Ming Fan JI Han Ran CHENG Zhi Da CAI Kang Ning qi xiao peng Center for Global Public Health Chinese Center for Disease Control and PreventionBeijing 102206China Yidu Cloud(Beijing)Technology Co. Ltd.Beijing 100083China

Taking the Chinese city of Xiamen as an example,simulation and quantitative analysis were performed on the transmissions of the Coronavirus Disease 2019(COVID-19)and the influence of intervention combinations to assist policymakers in the preparation of targeted response measures.A machine learning model was built to estimate the effectiveness of interventions and simulate transmission in different *** comparison was conducted between simulated and real cases in Xiamen.A web interface with adjustable parameters,including choice of intervention measures,intervention weights,vaccination,and viral variants,was designed for users to run the *** total case number was set as the *** cumulative number was 4,614,641 without restrictions and 78 under the strictest intervention *** with the parameters closest to the real situation of the Xiamen outbreak was performed to verify the accuracy and reliability of the *** simulation model generated a duration of 52 days before the daily cases dropped to zero and the final cumulative case number of 200,which were 25 more days and 36 fewer cases than the real situation,*** interventions could benefit the prevention and control of COVID-19 outbreak while safeguarding public health and mitigating impacts on people’s livelihood.

关键词： COVID-19 Intervention policy simulation Machine learning Compartment model