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Diabetes mellitus and hepatocellular carcinoma:Comparison of Chinese patients with and without HBV-related cirrhosis

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World Journal of Gastroenterology 2010年第35期16卷 4467-4475页

作者： Chun Gao Hong-chuan Zhao jing-Tao Li Shu-Kun Yao Graduate School Peking Union Medical College and Chinese Academy of Medical Sciences Beijing 100730 China Department of Gastroenterology China-Japan Friendship Hospital Ministry of Health Beijing 100029China

AIM:To determine the role of diabetes mellitus(DM) and other associated factors in Chinese hepatocellular carcinoma(HCC) patients with cirrhosis,compared with those HCC patients without cirrhosis,in the single setting of hepatitis B virus(HBV) infection,after other known concomitant diseases were ***:A total of 482 patients,treated at the China-Japan Friendship Hospital,Ministry of Health(Beijing,China),in the period January 2003 to June 2009,and with a hospital discharge diagnosis of HCC,were ***,clinical,laboratory,metabolic and instrumental features were ***:Of the total,310 patients were diagnosed with HBV infection and,following the inclusion and exclusion criteria,224 were analyzed,including 122 patients(54.5%) with cirrhosis(the case group) and 102 patients without cirrhosis(the control group).Twentyseven patients(12.1%) were diabetic,including 19 in the case group and 8 in the control group(19/122=15.6% vs 8/102=7.8%,P=0.077).Thirty-one possible relevant parameters were compared by univariate analysis,and 9 variables were selected for multivariable analysis,including DM(P=0.077),past history of HBV infection(P=0.005),total bilirubin(P<0.001),albumin level(P<0.001),international normalized ratio(INR)(P<0.001),alanine aminotransferase(P=0.050),platelet(P<0.001),total cholesterol(P= 0.047),and LDL cholesterol(P=0.002) *** showed a statistical difference by multivariable analysis [odds ratio(OR) 4.88,95% confidence interval(CI):1.08-21.99,P=0.039],although no significant difference was found in univariate *** addition,three cirrhosis-related parameters remained statistically different,including INR(OR 117.14,95% CI:4.19-3272.28,P=0.005),albumin(OR 0.89,95% CI:0.80-0.99,P=0.027),and platelet count(OR 0.992,95% CI:0.987-0.999,P=0.002).CONCLUSION:Besides the three cirrhosis-related parameters,DM was found to be the sole independent factor associated with HCC in patients with HBV-related cirrhosis,compar

关键词： Diabetes mellitus Hepatocellular carcinoma Hepatitis B virus Cirrhosis Chinese patients

Relevance between abutment pressure and fractal dimension of crack network induced by mining

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International Journal of Mining Science and Technology 2013年第6期23卷 925-930页

作者： Gao Mingzhong Jin Wencheng dai Zhixu Xie jing State Key Laboratory of Hydraulics and Mountain River Engineering Sichuan University College of Hydraulic and Hydropower Engineering Sichuan University Energy&Chemical Industry Research Institute Shenma Group of Pingdingshan Coal Group College of Architecture and Environment Sichuan University

Based on the geological conditions of coal mining face No.15-14120 at No.8 mine of Pingdingshan coal mining group,the real-time evolution of coal-roof crack network with working face advancing was collected with the help of intrinsically safe borehole video *** according to the geology of this working face,a discrete element model was calculated by *** in situ experimental data with numerical results,the relationship between the fractal dimension of boreholes'wall and the distribution of advanced abutment pressure was studied under the condition of mining *** results show that the variation tendency of fractal dimension and the abutment pressure has the same characteristic *** distance between working face and the peak value of the abutment pressure has a slight increasing trend with the advancing of *** the working face is set as the original point,the trend of fractal dimension from the far place to the origin can be divided into three phases:constant,steady increasing and *** the turning points of these phases are the max-influencing distance(50 m)and peak value(15 m)of abutment pressure.

关键词： Boreholes Coal mines Cracks Finite difference method Fractal dimension

Determination of particle size distribution by multi-scale analysis of acoustic emission signals in gas-solid fluidized bed

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第4期12卷 260-267页

作者： Cong-jing REN jing-dai WANG Di SONG Bin-bo JIANG Zu-wei LIAO Yong-rong YANG State Key Laboratory of Chemical Engineering Department of Chemical and Biochemical Engineering Zhejiang University Hangzhou 310027 China

Particle size distribution(PSD) is an important parameter in the process of fluidization,and it always plays a crucial role in a gas-solid fluidized system.A PSD model for on-line PSD determination based on acoustic emission(AE) measurement was developed according to the mechanism of particle collision with the inner wall of the cylinder and multi-scale wavelet decomposition *** PSD model illuminates the quantitative relationship between the energy percentage of AE signals for different scales and the PSD,which indicates the feasibility of the application of the PSD *** were undertaken both in lab and plant gas-solid fluidized setup with polyethylene particles,and the parameters of the PSD model were calibrated and *** experimental conditions and results proved that the PSD model was suitable for on-line measurement and was sufficiently sensible and *** agglomeration,the PSD model also showed exact serviceability on detecting the onset of agglomeration by abnormal PSD,and the result agreed with that from the radiation ***,AE measurement was found to be a reliable and credible means for understanding the PSD information that affects the behavior of a system,which can provide valuable guidance for practical applications.

关键词： Particle size distribution(PSD) Acoustic emission(AE) Fluidized bed Multi-scale Agglomeration

Study on wave energy resource assessing method based on altimeter data——A case study in Northwest Pacific

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Acta Oceanologica Sinica 2016年第3期35卷 117-129页

作者： WAN Yong ZHANG Jie MENG Junmin WANG jing dai Yongshou College of Information and Control Engineering China University of Petroleum The First Institute of Oceanography State Oceanic Administration College of Information Science and Engineering Ocean University of China

Wave energy resource is a very important ocean renewable energy. A reliable assessment of wave energy resources must be performed before they can be exploited. Compared with wave model, altimeter can provide more accurate in situ observations for ocean wave which can be as a novel method for wave energy *** advantage of altimeter data is to provide accurate significant wave height observations for wave. In order to develop characteristic and advantage of altimeter data and apply altimeter data to wave energy assessment, in this study, we established an assessing method for wave energy in local sea area which is dedicated to altimeter *** method includes three parts including data selection and processing, establishment of evaluation indexes system and criterion of regional division. Then a case study of Northwest Pacific was performed to discuss specific application for this method. The results show that assessing method in this paper can assess reserves and temporal and spatial distribution effectively and provide scientific references for the siting of wave power plants and the design of wave energy convertors.

关键词： altimeter data wave energy resources assessment assessing method Northwest Pacific wave power density

Location-based instant satellite image service: concept and system design

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International Journal of Digital Earth 2015年第2期8卷 91-101页

作者： Jianbo Liu Jin Yang Fu Chen Qin dai jing Zhang Institute of Remote Sensing and Digital Earth Chinese Academy of SciencesBeijingChina

This paper presents various limitations of the current remote sensing data distribution models and proposes a new concept called the location-based instant satellite image service for a new generation of remote sensing image distribution *** essential feature of the service is that customers can subscribe to data based on the location of interest and satellite image data received by antenna will be distributed to customer’s terminal devices instantly after imaging over the subscribed *** workflow,architecture,and key technologies of the new generation data distribution system are *** system is composed of four parts:data comprehensive processing component,data management component,product distribution component,and data display *** on this,a prototype system is developed,which demonstrates the promising service model with great potential for increased usage in many applications.

关键词： remote sensing data distribution model location-based service instant service

Lightweight Network Ensemble Architecture for Environmental Perception on the Autonomous System

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Computer Modeling in Engineering & Sciences 2023年第1期134卷 135-156页

作者： Yingpeng dai Junzheng Wang jing Li Lingfeng Meng Songfeng Wang School of Automation Beijing Institute of TechnologyBeijing100081China Institute of Tobacco Research of CAAS Qingdao266000China

It is important for the autonomous system to understand environmental *** the autonomous system,it is desirable to have a strong generalization ability to deal with different complex environmental information,as well as have high accuracy and quick inference *** ensemble architecture is a good choice to improve network ***,it is unsuitable for real-time applications on the autonomous *** tackle this problem,a new neural network ensemble named partial-shared ensemble network(PSENet)is *** changes network ensemble architecture from parallel architecture to scatter architecture and merges multiple component networks together to accelerate the inference *** make component networks independent of each other,a training method is designed to train the network ensemble *** on Camvid and CIFAR-10 reveal that PSENet achieves quick inference speed while maintaining the ability of ensemble *** the real world,PSENet is deployed on the unmanned system and deals with vision tasks such as semantic segmentation and environmental prediction in different fields.

关键词： Neural network ensemble real-time application classification semantic segmentation

Fabrication of nano-sized Ca(OH)_2 with excellent adsorption ability for N_2O_4

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Particuology 2012年第6期10卷 737-743页

作者： Yucheng Du Qi Meng Ruiqin Hou jing Yan Hongxing dai Tong Zhang Key Lab of Advanced Functional Materials Ministry of Education of ChinaCollege of Materials Science and EngineeringBeijing University of Technology Beijing Special Engineering Design and Research Institute Laboratory of Catalysis Chemistry and Nanoscience Department of Chemistry and Chemical EngineeringCollege of Environmental and Energy EngineeringBeijing University of Technology

Uniform nano-sized calcium hydroxide （Ca（OH）2） monocrystal powder was synthesized from calcium oxide in a surfactant solution via a digestion method by decreasing the surface tension of the reaction system to control the growth of crystalline Ca（OH）2. The Ca（OH）2 monocrystal powder samples were characterized by means of scanning electron microscopy （SEM）, transmission electron microscopy （TEM）, high resolution transmission electron microscopy （HRTEM）, X-ray diffraction （XRD）, Brunauer-Emmett-Teller （BET）, and Fourier transform-infrared spectroscopy （FT-IR）. The NOx adsorption ability of the samples was evaluated, and the influence of various types and concentrations of surfactants on powder agglomeration and then the specific surface area in the precipitation process were studied. The specific surface area of the samples was found as high as 58 m2/g and 92 m2/g and the particle size, 300-400 nm and 200-300 nm in the presence of 10 wt% PEG600 and 0.086 mL/L SDS at a reaction time of 5 h, respectively. The product has an exceptionally strong adsorption ability for NOx, which makes it a highly promising adsorbent for emission control and air purification.

关键词： Nano-sized Ca(OH)2 Surfactant Digestion method NOx collecting

High-resolution Absorption Spectra of Acetylene in 142.8-152.3 nm

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Chinese Journal of Chemical Physics 2008年第5期21卷 415-420页

作者： Ya-hua Hu Chen Zhen jing-hua dai Xiao-guo Zhou Shi-lin Liu Hefei National Laboratory for Physical Sciences at Microscale Department of Chemical Physics University of Science and Technology of China Hefei 230026 China

The absorption spectra of acetylene molecules was measured under jet-cooled conditions in the wavelength range of 142.8-152.3 nm, with a tunable and highly resolved vacuum ultraviolet （VUV） laser generated by two-photon resonant four wave difference frequency mixing processes. Due to the sufficient vibrational and rotational cooling effect of the molecular beam and the higher resolution VUV laser, the observed absorption spectra exhibit more distinct spectral features than the previous works measured at room temperature. The major three vibrational bands are assigned as a C-C symmetry stretching vibrational progress （v2=0.2） of the C^1Πu state of acetylene. The observed shoulder peak at 148,2 nm is assigned to the first overtone band of the trans-bending mode V4 of the C^1Πu state of acetylene. Additionally, the two components, 4^20（μ^1Π） and 4^20（k^1Πu）, are suggested to exhibit in the present absorption spectra, due to their Renner-Teller effect and transition selection rule. All band origins and bandwidths are obtained subsequently, and it is found that bandwidths are broadened and lifetimes decrease gradually with the excitation of vibration.

关键词： Acetylene Vacuum ultraviolet Absorption spectrum

Liquid-phase Exfoliated WS2-Graphene Composite Anodes for Potassium-ion Batteries

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Chinese Journal of Structural Chemistry 2020年第3期39卷 493-499,378页

作者： WANG Wei BAO jing-Ze SUN chuan-Fu CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese Academy of Sciences Beijing 100190China

Tungsten disulfide(WS2) has been recognized as a promising anode material for rechargeable potassium-ion batteries(PIBs). However, its K-ion intercalation capacity is limited to ~60 mAh·g^(-1). Here, we report a WS2-graphene composite anode which is fabricated through simple filtration of liquid-phase exfoliated WS2 and graphene nanosheet delivers a significantly improved specific capacity of 137 mAh·g^(-1) at a current density of 10 mA·g^(-1). The composite anodes also exhibit remarkable rate capability and long-term cyclability over 500 cycles. These results highlight the WS2-graphene composite structure as a promising anode material for long lifespan rechargeable potassium-ion batteries.

关键词： tungsten disulfide liquid-phase exfoliation K-ion battery grapheme