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实单位球上的面积积分算子
Area Integral Operator on the Real Unit Ball  [PDF]
王东方, 马柏林, 沈丹桂
Pure Mathematics (PM) , 2013, DOI: 10.12677/PM.2013.31010
Abstract:
本文通过Carleson boxes或者Tents的方式定义了实单位球上的Carleson测度，并建立了单位球上非切极大函数、Poisson积分和Carleson测度之间的联系。作为一个应用，我们引入一种\"\"与中单位球体上非负测度\"\"相关的面积积分算子\"\"，并用Carleson测度和其他方式刻画了这种使得\"\"从\"\"到\"\"或从\"\"到\"\"有界的非负测度\"\"。
In this paper, we introduce Carleson measures on the real unit ball in terms of Carleson boxes or tents, and establish relations among the non-tangential maximal function, Poisson integral and Carleson measures on the real unit ball. As an application, we introduce a certain area integral operator involving a nonnegative measure \"\"</span
小麦条锈菌毒性基因研究进展
Research Progress on Virulence Genes of Wheat Stripe Rust  [PDF]
卢晨, 卢涛, 尹军良, 马东方
Botanical Research (BR) , 2020, DOI: 10.12677/BR.2020.95057
Abstract:
小麦条锈病是由条形柄锈菌(Puccinia striiformis f.sp. tritici)引起的小麦上的重要病害，流行年份常常会造成小麦产量的减产，严重的时候会造成绝收，严重威胁我国的粮食生产。由于小麦条锈菌属于严格专性寄生菌，在分子水平上对小麦条锈菌基因进行的研究相对较少。本文总结了现已研究发现的条绣菌的毒性基因，为以后对小麦条绣菌的研究与防治打下理论基础。
Wheat stripe rust is a major disease on wheat caused by Puccinia striiformis f.sp. tritici. Popular years often result in a reduction in wheat output, and in severe cases, it will cause no harvest, which will seriously threaten my country’s grain production. Since the wheat stripe rust belongs to strictly obligate parasites, there are relatively few studies on the wheat stripe rust gene at the molecular level. This article summarizes the virulence genes of F. oxysporum that we have now studied, laying a theoretical foundation for the future research and prevention and cure of T. infestans.
新冠状病毒中SARS-CoV-2/Human/CHN/Bejing_BJ0613-12-HJ/2020毒株的分析
Analysis of SARS-CoV-2/Human/CHN/Bejing_BJ0613-12-HJ/2020 Strain among COVID-19  [PDF]
胡义锋, 夏鹏亮, 马东方
Hans Journal of Biomedicine (HJBM) , 2021, DOI: 10.12677/HJBM.2021.114028
Abstract: 生物信息学分析的方法被广泛用于多个物种的多个基因家族的分析。随着新冠病毒(SARS-CoV-2)的蔓延，导致感染肺炎的人数也越在与日俱增，对于已知的SARS-CoV-2序列的鉴定相继被报道。对于具体的SARS-CoV-2序列的分析可能有助于帮助分析其他新增SARS-CoV-2序列，为新增的新型冠状病毒的传播途径、分子诊断和临床治疗提供基础的信息。本研究选取北京新增的病毒株名为SARS-CoV-2/human/ CHN/Bejing_BJ0613-12-HJ/2020的SARS-CoV-2，采用生物信息学方法对系统发育、蛋白质特征进行分析，并预测了它们的蛋白模型。以期望为抗病毒药物的研发提供有效的依据或提供新的思路。
Bioinformatics analysis methods were used widely in the analysis of multiple gene families in different species. The number of people infected with pneumonia is increasing day by day because of the spread of the COVID-19 (SARS-CoV-2). Fortunately, the analysis of those reported and identified known SARS-CoV-2 sequences may help analyze other newly similar, and provide underlying information for the transmission route, molecular diagnosis, and clinical treatment of the novel coronavirus SARI. In this study, the newly-added virus strain (SARS-CoV-2/human/CHN/Bejing_BJ0613-12-HJ/2020, SARS-CoV-2 in Beijing) was selected and used the bioinformatics method to analyze the phylogeny and protein characteristics. Those protein models were analyzed and predicted for the expectation to provide a basis or new ideas for the development of antiviral drugs.
美国政府信息资源公共获取及启示
东方
图书情报工作 , 2010,
Abstract: ？推进政府信息资源公共获取，是发挥政府信息化效益的需要。论述美国的政府信息资源公共获取积累较成功的经验，主要包括：较完备的法律、政策体系予以保障、充分利用先进的信息技术进行促进、严谨的实施机制加以推进。指出我国政府信息资源公共获取仍存在较多问题，应借鉴美国经验进行完善。
基于改进灰靶模型的水资源利用效率评价
Evaluation of Water Use Efficiency Based on Improved Grey Target Model  [PDF]
徐冬梅, 徐梦臣, 王文川, 马俊清, 高东方
Journal of Water Resources Research (JWRR) , 2019, DOI: 10.12677/JWRR.2019.84039
Abstract:
用水效率是实施最严格的水资源管理制度的关键一环，对其进行客观评价是开展用水效率控制工作的前提。本文在传统灰靶模型中引入了CRITIC权进行客观赋权，克服了传统模型中使用等权的不足，提出了基于CRITIC权的改进灰靶模型，同时利用障碍因子诊断模型剖析了影响水资源利用效率的主要障碍因素。以2017年郑州市各地区用水效率评价为例，通过与TOPSIS法进行比较，两种方法的评价结果有很好的一致性，表明了改进灰靶模型在水资源利用效率评价中有一定的应用价值。通过障碍度模型分析，生态环境用水指标是阻碍郑州市水资源利用效率提高的主要因素。
Water efficiency is a key part of implementing the most stringent water management system, and objective evaluation of it is the prerequisite for water efficiency control. In this paper, the CRITIC weight is introduced into the traditional gray target model for objective weighting, which overcomes the shortcomings of the use of equal weight in the traditional model. An improved gray target model based on CRITIC weight is proposed. At the same time, the obstacle factor diagnosis model is used to analyze the main obstacles affecting water use efficiency. Taking the water efficiency evaluation of various districts in Zhengzhou in 2017 as an example, the evaluation results of the two methods are in good agreement compared with the TOPSIS method, indicating that the improved gray target model has certain application in the evaluation of water use efficiency. Through the analysis of the obstacle degree model, the ecological environment water use index is the main factor hindering the improvement of water use efficiency in Zhengzhou City.
EAP项目施行现状及意愿分析
Analysis on the Implementation Status and Willingness of EAP Project  [PDF]
赵东方
Advances in Social Sciences (ASS) , 2020, DOI: 10.12677/ASS.2020.93039
Abstract:
本研究目的在于了解员工对现今员工援助计划(Employee Assistance Program, EAP)项目的评价，研究对象开展EAP的意愿和其所在公司EAP的施行状况等方面，为EAP项目的开展奠定基础。本次研究采取随机抽样法，使用自行编制的EAP调查问卷，对山东、山西等地区的企业中的688名员工及领导进行了调查。结果表明，67.2%的研究对象之前从未了解过EAP，了解并亲身体验过的研究对象仅占总人数的5.5%，这说明当前人们对EAP的了解度不够；93.0%的研究对象愿意去尝试EAP项目，37.8%的研究对象认为其会有很大的帮助，但仅有10.8%的研究对象所在的企业开展EAP服务，说明目前EAP服务的需求大，但真正开展该项目的企业却不多，即开发前景巨大。
The purpose of this study is to understand the implementation status of Employee Assistance Program (EAP) and employees’ evaluation of EAP, which establishes foundation to carry out EAP in enterprises. In this study, self-developed EAP questionnaire was adopted to measure the evaluation of EAP projects, the main problems facing at present and implementation status of EAP in the enterprises. A total of 688 employees and employers were recruited from Shandong and Shanxi province of China. The results showed that 67.2% of subjects had never known EAP before, and only 5.5% of the total population had known and experienced EAP, indicating that people do not know enough about EAP at present. 93.0% of the subjects were willing to participate in the EAP program, and 37.8% thought it would be very helpful, but only 10.8% of the subjects worked in enterprises that carried out EAP services, indicating that there is a great demand for EAP services at present and the development prospect is huge.
基于FLUENT的原油储罐浮球式自动切水器数值模拟
Numerical Simulation of Crude Oil Storage Tank Ball Float Type Automatic Dehydration Facility Based on FLUENT  [PDF]
姜东方
Journal of Oil and Gas Technology (JOGT) , 2021, DOI: 10.12677/JOGT.2021.432007
Abstract: 储罐原油切水是原油罐区的重要作业。原油储罐的切水设备在运行过程中应满足节能和环保的要求。本文以原油储罐自动切水器为研究对象，利用FLUENT软件建立了水力数学模型，对流经原油储罐和自动切水器的含水原油进行了流动状态的数值模拟，验证了自动切水器的设计参数，并确定自动切水器的安装数据，为原油储罐自动切水器的安装调试提供了经验。
The dehydration of crude oil is the important operation in the crude oil storage tank area. The dehydration facility during operation should try to meet the requirements of energy conservation and environmental protection. The automatic dehydration facility of crude oil storage tank is the object of study in this article. The hydraulic mathematical model is established by using FLUENT software. The flow state of water bearing crude oil passing through the crude oil storage tank and the automatic water cutter is numerically simulated. The design parameters of the automatic water cutter are verified, and the installation data of the automatic water cutter are determined, which provides experience for the installation and debugging of the automatic water cutter of crude oil storage tank.
基于Logistic曲线的交通流速度-密度关系建模
马晓龙, 马东方, 王殿海, 林杉
中国公路学报 , 2015,
Abstract: ？为了解析交通流速度与密度关系,推导出了一组交通流参数物理意义明确且符合交通流特性的通用Logistic模型。从Logistic模型本质出发,讨论速度变化率的表达形式,结合交通流实际情况修正速度变化率并引入速度上确界概念,建立了一系列Logistic模型;通过改变取值,给出了模型参数变化对Logistic速度-密度曲线的影响,并细致讨论了参数的物理意义及获取方法;最后分别采集区段和断面的全交通状态数据进行模型验证。结果表明:模型3对2组数据的拟合优度分别为0.9313和0.9704,该模型能够很好地描述不同状态下的交通流特性。
采用递归有序聚类的信号控制时段划分方法
李文婧,孙锋,李茜瑶,马东方
- , 2018, DOI: 10.3785/j.issn.1008-973X.2018.06.014
Abstract: 为了弥补传统聚类思想下的信号控制时段划分算法忽略了交通流量序列的时间特性的缺点，引入有序聚类建立智能化的交通控制时段划分方法.针对特定分割数目下的任意一种可能划分方案，用类表示特定时段内部的数据序列集合，以直径为参数测算类内样本差异性，以所有类内直径总和作为指标衡量划分结果损失值及方案优劣性.为了降低传统有序聚类时间复杂度，引入动态递归策略，建立特定分割数目下最佳方案的快速求解方法，通过识别不同分割个数下最小损失值突变点，获取最佳分割数和最优方案.基于该方法得到的最优划分在实际交通规划中对比常用方法，交通运行效率得到了显著提升.
Abstract: An intelligent partition method for the traffic flow time series data was proposed based on order clustering to compensate for the technical defects of traditional methods which neglect time characteristic of traffic flow for traffic time-of-day (TOD) breakpoints optimization. The parameter of diameter was selected with fixed number of each cluster to measure the difference between any two samples within one cluster. The sum of the diameters was the loss value for this cluster. A fast solution method for seeking the optimal plan among all possible scenarios with known number of cluster was advanced based on dynamic recurrence algorithm in order to reduce the time complexity of the original method. The optimal number of clusters and the TOD plan was determined by identifying the elbow point in the change pattern of the minimum loss values with different numbers of clusters. The optimal partition used in the actual traffic planning can significantly improve the efficiency of traffic operation.
华山新麦草易位系9020-17-25-6抗条锈病遗传分析及细胞学鉴定
Cytological characterization and resistance inheritance of wheat Psathyrostachys huashanica translocation line 9020-17-25-6
马东方,刘署艳,方正武,等
- , 2015,
Abstract: 【目的】通过对华山新麦草与7182远缘杂交获得的抗条锈病新种质系9020-17-25-6进行抗条锈病鉴定和遗传分析，明确9020-17-25-6含有的抗病基因以及细胞学特性。【方法】在温室内以9020-17-25-6、感病对照铭贤169及其杂交后代F1、F2、F3和BC1群体为材料，采用我国目前流行的条锈菌生理小种CYR29、CYR30、CYR31、CYR32和CYR33对供试群体进行苗期抗条锈性鉴定，分析抗病基因的遗传规律，并利用基因组原位杂交(GISH)技术对9020-17-25-6含有的外源染色体片段进行鉴定。【结果】9020-17-25-6在苗期对5个条锈菌生理小种均表现免疫或近免疫，其抗性可能来源于华山新麦草。9020-17-25-6对CYR32和CYR33的抗病性都是由1对显性基因控制。GISH分析表明，9020-17-25-6含有来自华山新麦草的染色体或大的染色体片段，是一个普通小麦-华山新麦草易位系。【结论】华山新麦草易位系9020-17-25-6对我国目前流行的小麦条锈菌生理小种具有良好的抗病性，可以作为抗源在我国小麦抗锈育种中应用。
【Objective】The research was to study the inheritance of resistance to stripe rust in 9020-17-25-6,a wheat Psathyrostachys huashanica translocation germplasm line previously obtained from the interspecific hybridization of wheat genotype 7182 and Psathyrostachys huashanica.【Method】Five different races of Puccinia striiformis f.sp.tritici (Pst),CYR29,CYR30,CYR31,CYR32 and CYR33,were selected to test the F1,F2,F3,and BC1 progenies derived from 9020-17-25-6/Mingxian 169 at seedling stage in greenhouse.Genomic in situ hybridization (GISH) was applied to identify P.huashanica chromosomes in 9020-17-25-6.【Result】9020-17-25-6 was resistant to all tested Chinese races at seedling stage.Genetic analysis revealed that the resistance to CYR32 and CYR33 was controlled by a single dominant gene.A pair of signals was detected when using genomic P.huashanica DNA as a probe in the GISH experiment,and the translocation alien chromatin in this line was very long and cytologically detectable,further indicating that 9020-17-25-6 was a wheat-translocation line.【Conclusion】As a novel resistance resource,9020-17-25-6 had good resistance against popular rusts in China and it can be applied in wheat breeding for rust resistance
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