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基于价值链的中型房企业务财务体系研究

北方论丛 2024年第5期 81-95页

作者：陈振宁刘海生宋都基业投资股份有限公司杭州310016 浙江工商大学会计学院杭州310018

房地产业的良性循环和健康发展一直以来都是国内外宏观经济关注的重点。本文基于典型房地产企业价值链,将预算管理、成本管理、投融资管理、绩效管理和风险管理等管理会计工具与方法嵌入到房地产企业项目管理的各业务环节,构建了以拓展... 详细信息

房地产业的良性循环和健康发展一直以来都是国内外宏观经济关注的重点。本文基于典型房地产企业价值链,将预算管理、成本管理、投融资管理、绩效管理和风险管理等管理会计工具与方法嵌入到房地产企业项目管理的各业务环节,构建了以拓展财务、设计财务、建造财务和销售财务为内容的房地产企业业务财务体系。这一体系的构建,推进了房地产企业在业财融合的基础上更好地实现可持续发展目标,为加快构建房地产发展新模式奠定了坚实的微观基础。

关键词：价值链中型房企业务财务体系

东天山造山带黑尖山地区花岗闪长岩岩石成因及构造意义:来自岩石学、锆石U-Pb年代学、地球化学证据

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科学技术与工程 2024年第25期24卷 10620-10634页

作者：何碧赵振琯刘海生张文斌陈红旗甘肃省地质矿产勘查开发局第二地质矿产勘查院兰州730000

黑尖山花岗闪长岩位于东天山造山带晚古生代弧盆系之小热泉子—大南湖古生代残留弧内,通过分析其野外地质特征、岩相学、岩石地球化学以及锆石U-Pb年代学特征,探讨了其岩石成因、构造背景,为东天山地区古洋盆闭合、碰撞造山时限等洋-陆... 详细信息

黑尖山花岗闪长岩位于东天山造山带晚古生代弧盆系之小热泉子—大南湖古生代残留弧内,通过分析其野外地质特征、岩相学、岩石地球化学以及锆石U-Pb年代学特征,探讨了其岩石成因、构造背景,为东天山地区古洋盆闭合、碰撞造山时限等洋-陆构造格局及其演化研究提供新的基础信息。电感耦合等离子体质谱(inductively coupled plasma mass spectrometry,LA-ICP-MS)锆石U-Pb同位素定年结果显示黑尖山花岗闪长岩形成年龄为(373.0±3.0)Ma。岩石地球化学研究表明,花岗闪长岩具有高硅、准铝质、中-高钾钙碱性系列的I型花岗岩特征;稀土元素总量变化范围为112.82×10^(-6)~129.91×10^(-6),且轻/重稀土的比值变化范围为8.73~11.26(平均值为9.64),指示轻稀土相对重稀土富集,弱Eu负异常(δEu=0.77~0.85);样品富集大离子亲石元素(LILE,如Rb、Ba、K、U),亏损高场强元素(HFSE,如Ta、Nb和Ti)及P、Ta、Nb负异常明显;显示岛弧岩浆岩的特征,形成于板块俯冲的构造环境。综合区域地质特征、岩石地球化学和岩浆源区特征,黑尖山花岗闪长岩是东天山小热泉子—大南湖岛弧内晚古生代大规模中酸性岩浆侵入作用的同期产物,表明东天山黑尖山地区晚泥盆世花岗闪长岩是古大洋(古北天山洋)板片向北俯冲的岛弧背景产物;进一步说明东天山黑尖山地区泥盆纪晚期古大洋仍未闭合。

关键词：东天山造山带黑尖山地区花岗闪长岩地球化学锆石U-Pb年代学晚泥盆世

Investigation of Combining Plant Genotypic Values and Molecular Marker Information for Constructing Core Subsets

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Journal of Integrative Plant Biology 2006年第11期48卷 1371-1378页

作者： Jian-Cheng Wang Jin Hu Ning-Ning liu hai-Ming Xu sheng Zhang Department of Agronomy Zhejiang University Hangzhou 310029 China

In the present study, a strategy was proposed for constructing plant core subsets by clusters based on the combination of continuous data for genotypic values and discrete data for molecular marker InformaUon. A mixed linear model approach was used to predict genotyplc values for eliminating the environment effect. The ＂mixed genetic distance＂ was designed to solve the difficult problem of combining continuous and discrete data to construct a core subset by cluster. Four commonly used genetic distances for continuous data （Euclidean distance, standardized Euclidean distance, city block distance, and Mahalanobls distance） were used to assess the validity of the conUnuous data part of the mixed genetic distance; three commonly used genetic distances for discrete data （cosine distance, correlaUon distance, and Jaccard distance） were used to assess the validity of the discrete data part of the mixed genetic distance, A rice germplasm group with eight quantitative traits and information for 60 molecular markers was used to evaluate the validity of the new strategy. The results suggest that the validity of both parts of the mixed geneUc distance are equal to or higher than the common geneUc distance. The core subset constructed on the basis of a combination of data for genotyplc values and molecular marker information was more representative than that constructed on the basis of data from genotypic values or molecular marker informaUon alone. Moreover, the strategy of using combined data was able to treat dominant marker informaUon and could combine any other continuous data and discrete data together to perform cluster to construct a plant core subset.

关键词： cluster core subset genotypic value mixed linear model molecular marker information

补肾活血汤促进骨质疏松性骨折愈合的主要活性成分及网络药理机制研究

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广州中医药大学学报 2024年第7期41卷 1845-1850页

作者：刘盛海王梓合王梦威王斌刘亚梅广州中医药大学第三临床医学院广东广州510405 广州中医药大学第三附属医院广东广州510378 广州中医药大学中医诊断学教研室广东广州510405

【目的】利用网络药理学方法探讨补肾活血汤治疗骨质疏松性骨折的主要活性成分及药理作用机制。【方法】从中药系统药理学数据库与分析平台(TCMSP)中收集补肾活血汤的化学成分。通过DisGeNET数据库收集骨质疏松症的疾病靶点。通过韦恩... 详细信息

【目的】利用网络药理学方法探讨补肾活血汤治疗骨质疏松性骨折的主要活性成分及药理作用机制。【方法】从中药系统药理学数据库与分析平台(TCMSP)中收集补肾活血汤的化学成分。通过DisGeNET数据库收集骨质疏松症的疾病靶点。通过韦恩图筛选出补肾活血汤治疗骨质疏松症的预测作用靶点。通过基因本体论(GO)功能和京都基因与基因组百科全书(KEGG)通路富集分析获得补肾活血汤治疗骨质疏松性骨折的生物过程和信号通路。采用Cytoscape 3.9.1软件构建“中药成分-疾病靶点-通路”网络图,并通过拓扑参数分析,以度值作为考察,获得补肾活血汤治疗骨质疏松性骨折的主要活性成分。通过在线String 11.5软件构建蛋白-蛋白相互作用(PPI)网络,并通过拓扑参数分析补肾活血汤治疗骨质疏松性骨折在蛋白分子水平上的药理机制。【结果】共筛选出1 236个化学成分,其中包含了72个预测作用靶点,涉及DNA的转录、翻译甚至酶与酶之间的结合等生物过程,与糖尿病、动脉粥样硬化、癌症等KEGG信号通路有交集。【结论】补肾活血汤主要是通过脱氢二甘醇4、Yangambin、阿托品、花生四烯酸、鞣花酸、豆甾醇、异鼠李素等主要成分调控核转录因子p65、丝裂原活化蛋白激酶、雌激素受体、肿瘤坏死因子、细胞肿瘤抗原等蛋白分子发挥促进骨质疏松性骨折愈合的作用。

关键词：补肾活血汤骨质疏松骨折网络药理学

Fractal model of spontaneous imbibition in low-permeability reservoirs coupled with heterogeneity of pore seepage channels and threshold pressure

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Petroleum Science 2024年第2期21卷 1002-1017页

作者： Ming-sheng Zuo Hao Chen Xi-Liang liu hai-Peng liu Yi Wu Xin-Yu Qi National Key Laboratory of Petroleum Resources and Engineering China University of Petroleum(Beijing)Beijing102249China College of Safety and Ocean Engineering China University of Petroleum(Beijing)Beijing102249China

Spontaneous imbibition(SI)is an important mechanism for enhancing oil recovery in low-permeability *** to the strong heterogeneity,and the non-Darcy flow,the construction of SI model for lowpermeability reservoirs is extremely ***,traditional SI models based on single or averaged capillary tortuosity ignore the influence of heterogeneity of pore seepage channels and the threshold pressure(TP)on ***,in this work,based on capillary model and fractal theory,a mathematical model of characterizing SI considering heterogeneity of pore seepage channels is *** this basis,the threshold pressure was introduced to determine the pore radius at which the wetted phase can displace *** proposed new SI model was verified by imbibition experimental *** study shows that for weakly heterogeneous cores with permeability of 0-1 m D,the traditional SI model can characterize the imbibition process relatively accurately,and the new imbibition model can increase the coefficient of determination by 1.05 ***,traditional model has serious deviations in predicting the imbibition recovery for cores with permeability of 10-50 m *** new SI model coupling with heterogeneity of pore seepage channels and threshold pressure effectively solves this problem,and the determination coefficient is increased from 0.344 to 0.922,which is increased by2.68 *** low-permeability reservoirs,the production of the oil in transitional pores(0.01-0.1μm)and mesopores(0.1-1μm)significantly affects the imbibition recovery,as the research shows that when the heterogeneity of pore seepage channels is ignored,the oil recovery in transitional pores and mesopores decreases by 7.54%and 4.26%,*** analysis shows that increasing interfacial tension,decreasing contact angle,oil-water viscosity ratio and threshold pressure will increase imbibition *** addition,there are critical values for the influence of these factors o

关键词： Spontaneous imbibition Low-permeability reservoir Fractal model Threshold pressure Capillary tube

基于铝离子敏化牡丹提取物(丹皮酚)荧光法定量分析Al^(3+)的研究

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菏泽学院学报 2024年第2期46卷 104-109页

作者：刘海生崔开瑞陈长坤吴红松菏泽学院农业与生物工程学院山东菏泽274015

饮用水是人体铝元素的主要摄入来源.微量铝离子可对人体健康造成很大危害.WHO(世界卫生组织)规定,饮用水中允许的最高铝离子浓度为200μg/L(7.41μmol/L).因此铝离子的高灵敏检测显得尤为重要.目前常用的铝离子检测方法存在操作麻烦,周... 详细信息

饮用水是人体铝元素的主要摄入来源.微量铝离子可对人体健康造成很大危害.WHO(世界卫生组织)规定,饮用水中允许的最高铝离子浓度为200μg/L(7.41μmol/L).因此铝离子的高灵敏检测显得尤为重要.目前常用的铝离子检测方法存在操作麻烦,周期长等缺点,所以构建一种简便、快捷的铝离子检测方法尤为重要.丹皮酚是一种提取自牡丹皮的有机化合物,其与Al^(3+)结合后荧光会数倍增强.基于丹皮酚与铝离子结合产生荧光增强现象,建立了一种检测铝离子的荧光分析方法.此方法只需常温反应5 min,并且检测限为0.5μmol/L(线性范围:0~100μmol/L),构建的检测方法具有快速、低成本、简单、高特异性和高灵敏等优点,有很好的应用前景.

关键词：荧光增敏法丹皮酚 Al^(3+) 低成本快速检测

A novel real-time RT-PCR with TaqM an-MGB probes and its application in detecting BVDV infections in dairy farms

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Journal of Integrative Agriculture 2015年第8期14卷 1637-1643页

作者： ZHANG Yong-qiang liu hai-sheng WU Xiao-dong WANG Xiao-zhen LI Jin-ming ZHAO Yong-gang Lü Yan REN Wei-jie GE sheng-qiang WANG Zhi-liang China Animal Health and Epidemiology Center Beijing Dabeinong Technology Group Co. Ltd.

A real-time RT-PCR assay using Taq Man-MGB probes was developed to detect and type the bovine viral diarrhea virus（BVDV） in *** primers and Taq Man-MGB probes were designed from the 5′-untranslated region of known pestiviral *** to optimizing the assay, c RNAs were transcribed in vitro from the BVDV 1 and BVDV 2 RTPCR products to make standard *** detection limit of the assay was 1.72×102 copies for BVDV 1 and 2.14×102copies for BVDV *** specificity of the assay evaluated on several BVDV strains including bovine herpesvirus 1（BHV 1）, foot and mouth disease virus（FMDV） and several classical swine fever virus（CSFV） strains showed specific detection of the positive virus over 40 *** assay was highly reproducible with the coefficient of variance ranging from 1.04 to 1.33% for BVDV 1 and from 0.83 to 1.48% for BVDV 2, *** this method, we tested a total of 2 327 cattle from three dairy farms for the presence of BVDV persistently infected（PI） *** this assay, each RT-PCR template contained a mixture of ten samples from different *** occurrence rate of PI cattle in three farms ranging from 0.9 to 2.54% could represent partly the PI rates in cattle farm in *** conclusion, using our real-time PCR assay, we could effectively detect and type BVDV and identify PI cattle in a rapid and cost-effective manner.

关键词： bovine viral diarrhea virus(BVDV) real-time RT-PCR persistently infected(PI) animals Taq Man-MGB occurrence rate of PI cattle

Improving mathematical model of burden distribution and correcting chute angle to cope with fluctuation of stock line

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Journal of Iron and Steel Research International 2024年第2期31卷 342-356页

作者： Jian-sheng Chen Wen-guo liu Hao Guo Wang Ding Qing-guo Xue Jing-song Wang hai-bin Zuo State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing100083China MCC Capital Engineering&Research Incorporation Limited Beijing100176China Hunan Valin Xiangtan Iron and Steel Co. Ltd.Xiangtan411101HunanChina

Accurate evaluations of the burden distribution are of critical importance to stabilize the operation of blast *** mathematical model and discrete element method(DEM)are two attractive methods for predicting burden *** on DEM,the initial velocities of the pellet,sinter,and coke were calculated,and the velocity attenuations of the above three particles between the burden and the chute were *** initial velocity and velocity attenuation were applied to a mathematical model for improving the ***,based on the improved model,a scheme for rectifying the chute angles was proposed to address the fluctuation of the stock line and maintain a stable burden *** validity of the scheme was confirmed via a stable burden distribution under different stock *** mathematical model has been successfully applied to evaluate the online burden distribution and cope with the fluctuation of the stock line.

关键词： Burden distribution Mathematical model Discrete element method Velocity attenuation Stock line fluctuation

Snowpack variations and their hazardous effects under climate warming in the central Tianshan Mountains

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Advances in Climate Change Research 2024年第3期15卷 442-451页

作者： Jian-sheng HAO Yan WANG Lan-hai LI Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of Sciences(CAS)Beijing 100101China Xinjiang Key Laboratory of Water Cycle and Utilization in Arid Zone Urumqi 830011China State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China Tianshan Snowcover and Avalanche Observation and Research Station of Xinjiang Xinyuan 835800China CAS Research Center for Ecology and Environment of Central Asia Urumqi 830011China

Climate change alters snowpack evolution,which in turn influences the likelihood of snow avalanches and flood *** lack of systemic observational data on key snow characteristics in high mountains remains a scientific challenge in terms of systematically elucidating the dynamic chain of variations in climate-snowpack-snow *** restricts our understanding and poses challenges in the prediction of snow-related disaster *** such,this study analysed the variations of temperature and snowfall and the physical characteristics of snowpacks based on ground-based observations from the Kunse River Valley situated in the Tianshan Mountains from 1967 to *** results reveal that the temperature increased significantly by 0.32°C per decade(p<0.01)during the snow season,along with more extreme snowfall *** snow-cover duration was observed to have been shortened by 4.77 d per decade(p<0.01)from 1967 to 2021,which is characterised by later snow-cover onset and earlier ***,average and maximum snow depths increased along with an increase in peak snow water equivalent,thus indicating a higher frequency of extremely scarce or abundant snow *** low snowpack temperature gradient and earlier snowmelt dates in spring lead to earlier occurrences of snowmelt floods and wet *** the risks of these events increase,they pose greater threats to farmlands,road transportation,water-electricity infrastructure and several other human ***,these insights are critical for providing vital information that can deepen our understanding of the impact of climate change on snowpack characteristics and improve management strategies for snow-related disaster prevention and mitigation.

关键词： Climate change Snowpack variations Snow-related disaster Tianshan Mountains