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Erosion and transport mechanisms of mine waste along gullies

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Journal of Mountain Science 2019年第2期16卷 402-413页

作者： ZHU Xing-hua CUI Yi-fei PENG Jian-bing JIANG Cheng guo wei-long College of Geological Engineering and Surveying Chang'an University Key Laboratory of Western China ineral Resources and Geological Engineering Chang’an University Department of Civil and Environmental Engineering Hong Kong University of Science and Technology Shaanxi Institute of Engineering Prospecting Co.Ltd

Mine waste debris flows continue to occur in China, and the disaster prevention and mitigation of these flows faces severe challenges since the mechanisms determining erosion and transport of mine waste along gullies are not yet fully understood. The erosion and delivery process of mine waste heaps was reproduced through flume experiments with the method based on field survey data of the Daxicha mine waste debris flow gully in the Xiaoqinling gold mining area. The results showed that the erosion and movement of mine wastes could be divided into three modes: minimal sediment movement, sediment sorting and delivery, and a large amount of sediment transfer. Moreover, there was an obvious amplification effect on peak discharge along with the formation and failure of temporary landslide dams during the erosion process. The correlation between the coefficient of peak discharge amplification and three dimensionless influencing factors, flume gradient, dimensionless volume, and dimensionless particle size, were comprehensively analyzed. An empirical formula for the coefficient of peak discharge amplification was proposed and verified based on 16 sets of experimental data. These preliminary results can provide a scientific reference for future research on disaster prevention and mitigation of mine waste debris flows.

关键词： Mine waste Debris flow Erosion and transport Landslide dam Peak discharge amplification

Malignant form of hidroacanthoma simplex:A case report

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World Journal of Clinical Cases 2023年第24期11卷 5804-5810页

作者： Yi-Fei Yang Rong Wang Hui Xu wei-guo long Xiao-Hui Zhao Yu-Mei Li Department of Dermatology The Affiliated Hospital of Jiangsu UniversityZhenjiang 212001Jiangsu ProvinceChina Department of Pathology The Affiliated Hospital of Jiangsu UniversityZhenjiang 212001Jiangsu ProvinceChina

BACKGROUND This paper presents a case of malignant hidroacanthoma simplex(HAS)and review the literature of previous cases to summarize the histopathological and immunohistochemical features and display the dermoscopic features of malignant *** SUMMARY We present an 88-year-old Asian female with malignant *** diagnosis was made according to the histopathological and immunohistochemical results after *** case reports of malignant HAS were retrieved from PubMed to characterize the histopathological and immunohistochemical *** also display the dermoscopic features of malignant HAS that have not been *** Our findings demonstrate that prompt surgical treatment is an effective strategy for malignant *** and immunohistochemistry are valuable diagnostic *** is the first case report to display the dermoscopic features of malignant HAS,and we speculate that dermoscopy may contribute to the diagnosis of malignant HAS.

关键词： Malignant hidroacanthoma simplex Dermoscopy Immunohistochemistry Histopathology Diagnosis Case report

Epithelioid angiosarcoma of esophagus

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Chinese Medical Journal 2013年第9期126卷 1789-1791页

作者： XU wei ZHAN Na DONG wei-guo XIONG Cheng-long Department of Medicine Department of Pathology Department of Gastroenterology Department of General Surgery Renmin Hospital of Wuhan University Wuhan Hubei 430060 China

Epithelioid angiosarcomas （EAS） are very uncommon tumors accounting for less than 1% of all sarcomaand most frequently occur in the skin and subcuits. Primary angiosarcomas in alimentary tract are very rare, especially in esophagus and only one case has been reported in the Chinese literature.I Evidence-based advice regarding optimal management is lacking. Here, we reported a case of 54-year-old man who was found to have EAS in the esophagus.

关键词： epithelioid angiosarcoma esophagus neoplasms pathology immunohistochemisty

Novel video coding algorithmbased on 3D-binDCT

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Optoelectronics Letters 2005年第3期1卷 228-231页

作者： NI wei guo Bao-long YANG Liu Institute of Intelligent Control and Image Engineering Xidian University Xi＇an 710071 China

In this paper we propose a three dimensional multiplierless discrete cosine transform（DOT） with lifting scheme called 3D-binDCT. Based on 3D-binDCT, a novel video coding algorithm without motion estimation/compensation is proposed. It uses the 3D-binDCT to exploit spatial or temporal redundancy. The computation of binDOT only needs shift and addition operations, thus the computational complexity is minimized. DO coefficient prediction, modified scan mode and arithmetic coding techniques are also adopted. Extensive simulation results show that the proposed coding scheme provides higher coding efficiency and improves visual aualitv, and it is easy to be realized by software and hardware.

关键词：视频通信代码编译三维图象离散余弦传输

Amino acids essential for the interaction between cellular heat shock protein 90 and a Kaposi's sarcoma-associated herpesvirus-encoded protein kinase ORF36

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Virologica Sinica 2016年第6期31卷 509-512页

作者： Chao Wang Jingchao Wang wei guo Cong long Huan Wang Xiaoping Sun State Key laboratory of Virology Wuhan University Wuhan 430072 China.

Dear Editor,Protein-protein interactions（PPIs）often play important roles in biological processes（Zhang et al.,2016）.The split Renilla luciferase complementation assay（SRLCA）is one of the methods in studying *** is based on the complementation of the N-terminal domains of Renilla luciferase（LN）and C-terminal domains of Renilla luciferase （LC） non-functional halves of Renilla luciferase fused to possibly interacting proteins and emit luminescence （Deng et al., 2011; Jiang et al., 2010）（Supplementary Figure S1A）.

关键词： ORF LC Amino acids essential for the interaction between cellular heat shock protein 90 and a Kaposi’s sarcoma-associated herpesvirus-encoded protein kinase ORF36 LN

The complex effects of miR-146a in the pathogenesis of Alzheimer's disease

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Neural Regeneration Research 2025年第5期20卷 1309-1323页

作者： Yunfan long Jiajia Liu Yu Wang Haidong guo guohong Cui Department of Neurology Shanghai No.9 People’s HospitalShanghai Jiaotong University School of MedicineShanghaiChina Academy of Integrative Medicine Shanghai University of Traditional Chinese MedicineShanghaiChina School of Integrative Medicine Shanghai University of Traditional Chinese MedicineShanghaiChina Department of Neurology Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghaiChina

Alzheimer's disease is a neurodegenerative disorder characterized by cognitive dysfunction and behavioral *** plaques formed through the extracellular deposition of amyloid-βproteins,as well as neurofibrillary tangles formed by the intracellular deposition of hyperphosphorylated tau proteins,comprise two typical pathological features of Alzheimer's *** symptomatic treatment,there are no effective therapies for delaying Alzheimer's disease ***(miR)are small,non-coding RNAs that negatively regulate gene expression at the transcriptional and translational levels and play important roles in multiple physiological and pathological ***,miR-146a,a NF-κB-regulated gene,has been extensively implicated in the development of Alzheimer's disease through several *** has demonstrated substantial dysregulation of miR-146a both during the initial phases and throughout the progression of this *** R-146a is believed to reduce amyloid-βdeposition and tau protein hyperphosphorylation through the TLR/IRAK1/TRAF6 pathway;however,there is also evidence supporting that it can promote these processes through many other pathways,thus exacerbating the pathological manifestations of Alzheimer's *** has been widely reported that miR-146a mediates synaptic dysfunction,mitochondrial dysfunction,and neuronal death by targeting m RNAs encoding synapticrelated proteins,mitochondrial-related proteins,and membrane proteins,as well as other *** the impact on glial cells,miR-146a also exhibits differential *** one hand,it causes widespread and sustained inflammation through certain pathways,while on the other hand,it can reverse the polarization of astrocytes and microglia,alleviate neuroinflammation,and promote oligodendrocyte progenitor cell differentiation,thus maintaining the normal function of the myelin sheath and exerting a protective effect on *** this review,we provide a

关键词： Alzheimer's disease amyloid-β glial cells microRNAs miR-146a neuroinflammatory

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干旱荒漠区天然砂砾路基填料压实特性分析

中国公路学报 2017年第2期30卷 18-24页

作者：包卫星郭小龙杨万精交通运输部公路科学研究院北京100088 清华大学土木工程系北京100083 新疆交通建设管理局新疆乌鲁木齐830049 北京交通大学土木建筑工程学院北京100044 西安市城乡建设委员会陕西西安710003

为研究天然砂砾路基填料的振动压实特性,首先采用筛分法对干旱荒漠地区多条在建高速公路的天然砂砾路基填料进行颗粒组成分析,其次进行表面振动压实试验,采用湿土法分析含水量对天然砂砾干密度的影响,采用干土法分析含石量、级配特性和... 详细信息

为研究天然砂砾路基填料的振动压实特性,首先采用筛分法对干旱荒漠地区多条在建高速公路的天然砂砾路基填料进行颗粒组成分析,其次进行表面振动压实试验,采用湿土法分析含水量对天然砂砾干密度的影响,采用干土法分析含石量、级配特性和振动时间对天然砂砾压实效果的影响。基于不同粗颗粒组含量下的最大干密度结果,拟合了天然砂砾最大干密度与粗颗粒中各粒组含量之间的关系式,并利用粗颗粒粒组含量确定天然砂砾的最大干密度。研究结果表明:新疆干旱荒漠区天然砂砾路基填料为不均匀土,级配不良的主要原因为曲率系数较小,填料中细粒含量较少;天然砂砾的干密度随着含水量增大会有谷值与峰值,与黏性土的单峰值变化有明显区别;天然砂砾含石量对最大干密度有显著影响,其最大干密度随含石量的变化分为明显的3个阶段,当含石量为60%时,可以得到最大干密度的最大值;不同级配的天然砂砾的干密度对振动时间的敏感性有明显区别。

关键词：道路工程压实特性振动压实天然砂砾含石量最大干密度

Ni-catalyzed cross-electrophile alkyl-alkyl coupling reactions

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Science China Chemistry 2025年

作者： Li-Xu You Lan Tian Chun-Ling guo Shun-Xi Li Yu-Cheng Liu Yu-long Li wei Shu College of Chemistry and Environmental Engineering Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan Sichuan University of Science and Engineering Guangming Advanced Research Institute Shenzhen Grubbs Institute Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology

Introducing saturated carbon-carbon bonds into organic molecules significantly increases the three-dimensional configuration,thus altering the physical and chemical properties as well as the functions of molecules. Transition-metal-catalyzed carboncarbon cross-couplings represent one of the most straightforward, efficient and modular alternatives to build saturation in a single step. However, the efficient construction of alkyl-alkyl bonds remains a formidable challenge due to the precise manipulation of multiple alkyl metallic intermediates as well as associated competitive side reactions and selectivity control. Over the past years, Ni-catalyzed cross-coupling under reductive conditions has gained more and more attention for alkyl-alkyl crosscoupling partially attributing to the low-valent state of metal centers under reducing conditions, which suppresses the competitive β-hydride elimination process, thus facilitating the formation of alkyl-alkyl bonds. In this review, the initiative and progress of Ni-catalyzed cross-electrophile alkyl-alkyl cross-coupling, including the efforts in racemic and enantioselective formation of alkyl-alkyl bonds, have been summarized and discussed. Moreover, the challenges and further opportunities in this area have also been discussed.

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Novel video coding algorithmbased on 3D-binDCT

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Optoelectronics Letters 2005年第3期 74-77页

作者： NI wei~(**), guo Bao-long, and YANG LiuInstitute of Intelligent Control and Image Engineering,Xidian University, Xi′an 710071,China

In this paper we propose a three dimensional multiplierless discrete cosine transform(DCT) with lifting scheme called *** on 3D-binDCT,a novel video coding algorithm without motion estimation/compensation is *** uses the 3D-binDCT to exploit spatial or temporal *** computation of binDCT only needs shift and addition operations,thus the computational complexity is *** coefficient prediction,modified scan mode and arithmetic coding techniques are also *** simulation results show that the proposed coding scheme provides higher coding efficiency and improves visual quality, and it is easy to be realized by software and hardware.

关键词： CABAC Novel video coding algorithmbased on 3D-binDCT IEEE