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New approach to determine common weights in DEA efficiency evaluation model

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Journal of Systems Engineering and Electronics 2010年第4期21卷 609-615页

作者： Feng Yang Chenchen Yang liang liangc Shaofu du School of Management University of Science and Technology of China Hefei 230026 R R. China

Data envelopment analysis（DEA） is a mathematical programming approach to appraise the relative efficiencies of peer decision-making unit（DMU）,which is widely used in ranking ***,almost all DEA-related ranking approaches are based on the self-evaluation *** other words,each DMU chooses the weights it prefers to most,so the resulted efficiencies are not suitable to be used as ranking *** this paper proposes a new approach to determine a bundle of common weights in DEA efficiency evaluation model by introducing a multi-objective integer *** paper also gives the solving process of this multi-objective integer programming,and the solution is proven a Pareto efficient *** solving process ensures that the obtained common weight bundle is acceptable by a great number of *** a numeral example is given to demonstrate the approach.

关键词： data envelopment analysis(DEA) common weight ranking multi-objective programming.

INTEGRATION OF NON-UNIFORM RATIONAL B-SPLINES GEOMETRY AND RATIONAL ABSOLUTE NODAL COORDINATES FORMULATION FINITE ELEMENT ANALYSIS

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Acta Mechanica Solida Sinica 2014年第5期27卷 486-495页

作者： Peng Lan Zuqing Yu liang du Nianli Lu School of Mechatronic Engineering Harbin Institute of Technology

This investigation is intended to develop a computer procedure for the integration of NURBS geometry and the rational absolute nodal coordinate formulation （RANCF） finite element analysis. A linear transformation is given that can be used to convert the NURBS curve to RANCF cable element mesh retaining the same geometry and the same degree of continuity, including the discussion of continuity control and mesh refinement. The green strain tensor is used to establish the nonlinear dynamic equations with numerical examples to demonstrate the use of the procedure in the dynamic analysis of flexible bodies.

关键词： finite element method rational absolute nodal coordinate formulation (RANCF),NURBS mesh refinement

Research on cigarette during smoking based on reverse engineering and numerical simulation

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Chinese Journal of Chemical Engineering 2019年第10期27卷 2359-2375页

作者： Darong Tang JunzhangWu Jinsong Zeng Wenhua Gao liang du State Key Laboratory of Pulp and Paper Engineering Plant Micro/Nano Fiber Research CenterSouth China University of TechnologyGuangzhou 510640China China Tobacco Guangdong Industrial Co.Ltd. Guangzhou 510385China

The three-dimensional(3 D)model of cigarette was accurately constructed through reverse engineering as the research object of numerical *** combustion process of cigarette was studied with computational fluid dynamics(CFD).Standard Laminar models with species transport approach were applied,and numerical simulation of the cigarette was analyzed with semi-implicit method for pressure–velocity *** results showed that the model could predict velocity of cigarette smoke,the distributions of temperature and pressure at different *** order to verify the correctness of model,it was found that the relationship between the velocity of smoke and pressure according to Darcy’s law on z position(x=4 mm,y=0,0 mm≤z≤50.61 mm).

关键词： Cigarette Reverse engineering Computational fluid dynamics

Corepressor metastasis-associated protein 3 modulates epithelial-to-mesenchymal transition and metastasis

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Chinese Journal of Cancer 2017年第3期36卷 139-149页

作者： liang du Zhifeng Ning Fuxing Liu Hao Zhang Cancer Research Center Shantou University Medical College Basic Medicine College Hubei University of Science and Technology Department of Biotherapy Affiliated Cancer Hospital of Shantou University Medical College

Worldwide,metastasis is the leading cause of more than 90%of cancer-related ***,no specific therapies effectively impede *** processes are controlled by complex regulatory networks and transcriptional *** metastasis-associated protein 3(MTA3)has been confirmed as a novel component of nucleosome remodeling and histone deacetylation(NuRD).Increasing evidence supports the theory that,in the recruitment of transcription factors,coregulators function as master regulators rather than passive *** a master regulator,MTA3 governs the target selection for Nu RD and functions as a transcriptional ***3dysregulation is associated with tumor progression,invasion,and metastasis in various ***3 is also a key regulator of E-cadherin expression and epithelial-to-mesenchymal *** the functions of MTA3 might help to find additional therapeutic approaches for targeting components of NuRD.

关键词： Metastasis associated proteins Coregulator NuRD complex Master regulator

1D Ferromagnetic Interaction of 2-Iodo Nitronyl Nitroxide Radical Confirmed by Spin Density Calculation

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Chemical Research in Chinese Universities 2012年第6期28卷 1066-1069页

作者： LIU Zhi-liang SONG Ye du Chun-fang College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China

A supramolecular 1D ferromagnetic system was studied experimentally as well as *** density functional theory（DFT） calculations were based on the X-ray *** results of DFT calculations and McConnell mechanism have contributed to the understanding of the factors governing the exchange coupling of magnetism in the crystal *** the experimental evidence and theoretical calculation indicate that spin density in 2-iodo nitronyl nitroxide（INN） radicals confirms 1D ferromagnetic chain with inter-chain antiferromagnetic interaction.

关键词： Supramolecular chemistry Density functional theory calculation Spin density Ferromagnetic chain

Low Surface Brightness Galaxies from BASS+MzLS with Machine Learning

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Research in Astronomy and Astrophysics 2024年第5期24卷 185-197页

作者： Peng-liang du Wei du Bing-Qing Zhang Zhen-Ping Yi Min He Hong Wu Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China School of Mechanical Electrical and Information EngineeringShandong UniversityWeihai 264209China

From ∼5000 deg^(2) of the combination of the Beijing–Arizona Sky Survey and Mayall z-band Legacy Survey which is also the northern sky region of the Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Surveys, we selected a sample of 31,825 candidates of low surface brightness galaxies (LSBGs) with the mean effective surface brightness 24.2 0.60) LSBGs. The blue LSBGs appear spiral, disk or irregular while the red LSBGs are spheroidal or elliptical and spatially clustered. This trend shows that the color has a strong correlation with galaxy morphology for LSBGs. In the spatial distribution, the blue LSBGs are more uniformly distributed while the red ones are highly clustered, indicating that red LSBGs preferentially populate a denser environment than the blue LSBGs. Besides, both populations have a consistent distribution of ellipticity (median ∈∼ 0.3), half-light radius (median r_(eff) ∼ 4″) and Sérsic index (median n=1), implying the dominance of the full sample by the round and disk galaxies. This sample has definitely extended the studies of LSBGs to a regime of lower surface brightness, fainter magnitude and broader other properties than the previously Sloan Digital Sky Survey-based samples.

关键词： catalogs-galaxies fundamental parameters-galaxies statistics-techniques photometric

Rapid Damage Prediction and Risk Assessment for Tropical Cyclones at a Fine Grid in Guangdong Province,South China

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International Journal of Disaster Risk Science 2023年第2期14卷 237-252页

作者： Yazhou Ning Xianwei Wang Qi Yu du liang Jianqing Zhai School of Geography and Planning Sun Yat-sen UniversityGuangzhou510275China Guangdong Provincial Engineering Research Center for Public Security and Disasters Guangzhou510275China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai519082China National Climate Center China Meteorological AdministrationBeijing100081China

Rapid damage prediction for wind disasters is significant in emergency response and disaster mitigation,although it faces many *** this study,a 1-km grid of wind speeds was simulated by the Holland model using the 6-h interval records of maximum wind speed(MWS) for tropical cyclones(TC) from 1949 to 2020 in South *** MWS during a TC transit was used to build damage rate curves for affected population and direct economic *** results show that the Holland model can efficiently simulate the grid-level MWS,which is comparable to the ground observations with R2 of0.71 to 0.93 and mean absolute errors(MAEs) of 3.3 to 7.5 m/*** estimated damage rates were in good agreement with the reported values with R^(2)=0.69-0.87 for affected population and R^(2)=0.65-0.84 for GDP *** coastal areas and the Guangdong-Hong Kong-Macao Greater Bay Area have the greatest risk of wind disasters,mainly due to the region’s high density of population and developed *** proposed method is suitable for rapid damage prediction and supporting emergency response and risk assessment at the community level for TCs in the coastal areas of China.

关键词： Damage prediction Holland model Risk assessment South China Tropical cyclones Wind disasters

Research progress of lncRNA and miRNA in hepatic ischemia-reperfusion injury

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Hepatobiliary & Pancreatic Diseases International 2023年第1期22卷 45-53页

作者： Shan-Fei Zhu Wei Yuan Yong-liang du Bai-Lin Wang Department of Hepatobiliary Surgery Guangzhou Red Cross Hospital of Jinan UniversityGuangzhou 510220China

Background:Hepatic ischemia-reperfusion injury(HIRI)is a common complication of liver surgeries,such as hepatectomy and liver *** recent years,several non-coding RNAs(nc RNAs)including long non-coding RNAs(lnc RNAs)and micro RNAs(mi RNAs)have been identified as factors involved in the pathological progression of *** this review,we summarized the latest research on lnc RNAs,mi RNAs and the lnc RNA-mi RNA regulatory networks in *** sources:The Pub Med and Web of Science databases were searched for articles published up to December 2021 using the following keywords:“hepatic ischemia-reperfusion injury”,“lnc RNA”,“long noncoding RNA”,“mi RNA”and“micro RNA”.The bibliography of the selected articles was manually screened to identify additional ***:The mechanism of HIRI is complex,and involves multiple lnc RNAs and mi *** roles of lnc RNAs such as AK139328,CCAT1,MALAT1,TUG1 and NEAT1 have been established in *** addition,numerous mi RNAs are associated with apoptosis,autophagy,oxidative stress and cellular inflammation that accompany HIRI *** on the literature,we conclude that four lnc RNA-mi RNA regulatory networks mediate the pathological progression of ***,the expression levels of some lnc RNAs and mi RNAs undergo significant changes during the progression of HIRI,and thus are potential prognostic markers and therapeutic ***:Complex lnc RNA-mi RNA-m RNA networks regulate HIRI progression through mutual activation and *** is necessary to screen for more HIRI-associated lnc RNAs and mi RNAs in order to identify novel therapeutic targets.

关键词： ncRNA lncRNA miRNA Hepatic ischemia-reperfusion injury Research progress

Myelotomy promotes locomotor recovery in rats subjected to spinal cord injury： a meta-analysis of six randomized controlled trials

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Neural Regeneration Research 2018年第6期13卷 1096-1106页

作者： Chuan Qin Wen-Hao Zhang De-Gang Yang Ming-liang Yang liang-Jie du Jian-Jun Li School of Rehabilitation Medicine. Capital Medical University Beijing China Department of Spinal and Neural Functional Reconstruction China Rehabilitation Research Center Beijing China Beijing Key Laboratory of Neural Injury and Rehabilitation Beijing China China Rehabilitation Science Institute Beijing China Center of Neural Injury and Repair Beijing Institute for Brain Disorders Beijing China

OBJECTIVE： To investigate the effects of myelotomy on locomotor recovery in rats subjected to spinal cord injury. DATA SOURCES： Electronic databases including Pub Med, Science Citation Index, Cochrane Library, China National Knowledge Infrastructure, Chinese Journals Full-text Database, China Biology Medicine disc, and Wanfang Database were searched to retrieve related studies published before September 2017. The Me SH terms（the Medical Subject Headings） such as ＂myelotomy＂, ＂spinal cord injuries＂, ＂rats＂, ＂randomized controlled trial＂ and all related entry terms were searched. DATA SELECTION： Randomized controlled trials using myelotomy for the treatment of acute spinal cord injury in rats were included. Basso, Beattie, and Bresnahan scores were adopted as the evaluation method. Rev Man Software（version 5.3） was used for data processing. The χ^2 and I^2 tests were used to assess heterogeneity. Using a random-effects model, a subgroup analysis was conducted to analyze the source of the heterogeneity. OUTCOME MEASURES： Basso, Beattie, and Bresnahan scores were observed 1–6 weeks after spinal cord ***： Six animal trials were included, using a total of 143 lab rats. The included trials were divided into two subgroups by injury degrees（moderate or severe）. The pooled results showed that, 1–6 weeks after spinal cord injury, the overall Basso, Beattie, and Bresnahan score was significantly higher in the myelotomy group than in the contusion group（weighted mean difference（WMD） = 0.60; 95% confidence interval（CI）： 0.23–0.97; P = 0.001; WMD = 2.10; 95% CI： 1.56–2.64; P 〈 0.001; WMD = 2.65; 95% CI： 1.73–3.57; P 〈 0.001; WMD = 1.66; 95% CI： 0.80–2.52; P 〈 0.001; WMD = 2.09; 95% CI： 0.92–3.26, P 〈 0.001; WMD = 2.25; 95% CI： 1.06–3.44, P 〈 0.001）. The overall heterogeneity was high（I^2 = 85%; I^2 = 95%; I^2 = 94%; I^2 = 88%; I^2 = 91%; I^2 = 89%）. The results in the moderate injury subgroup showed that Basso, Beattie, and Bresnahan scores were significantly higher in

关键词： nerve regeneration spinal cord injury myelotomy locomotor recovery rats rehabilitation moderate injury randomized controlled trials systematic review meta-analysis neural regeneration