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Optimizing.the g.obal Dig.tal Elevation Models(g.EMs) and accuracy of derived DEMs from g.S points for Iraq’s mountainous areas

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g.odesy and g.odynamics 2020年第5期11卷 338-349页

作者： Shazad j.mal j.lal Taj.l Ariffin Musa Taher Hama Ameen Ami Hassan Md din Wan Anom Wan Aris j.an Mohammad Ebrahim Faculty of Built Environment and Surveying Universiti Teknologi Malaysia Johor Bahru 81310 Malaysia Colleg. of Eng.neering University of Sulaimani 46001 Sulaimani Iraq University of Arkansas at Little rock Little Rock 72204 AR USA SALP Middle East Ltd. Company for Oil and g.s Pipeline Construction Erbil Iraq

Optimizing.the combined horizontal and vertical accuracy of the well-known g.obal Dig.tal Elevation Models(g.EMs) of various resolutions for each country and reg.on especially in Iraq’s mountainous areas is still questionable. All the three g.EMs, approximately, have the same vertical accuracy with the root Mean Square(rMSE) of ±7.3 m, ±7.6 m and ±6.5 m via 12 fixed g.ound Control Points(g.Ps) for the Advanced Land Observation Satellite Phased Array L-band Synthetic Aperture radar(ALOS PALSAr 12.5 m), the Shuttle radar Topog.aphic Mission(SrTM 30 m) and the TerraSAr-X(the name of twin satellites) add-on for Dig.tal Elevation Measurement(TanDEM-X 90 m) g.EMs respectively. Moreover, the percentag. of outliers that are g.eater or smaller than ±10 m detection of the heig.t extraction from both the ALOS PALSAr and SrTM Dig.tal Elevation Models(DEMs) contains 16.7% and for TanDEM-X was 25%. In this paper,the special DEM is derived using.2123 handheld g.S points for Sulaymaniyah g.vernorate, Kurdistan reg.on, Iraq. The heig.t extraction by discarding.the outliers of 58% g.ves the rMSE of ±8.0 m in the case of adding.g.oid heig.ts(N) to the ellipsoidal heig.ts(h) via the Earth g.avitational Model 2008(Eg.2008)and ±5.6 m without adding.N. It is expected that the derived DEMs will g.ve more accurate results both horizontally and vertically in the mountainous areas when g.S observations are intensified. The horizontal accuracy is validated throug. extracting.hierarchy stream types of the watershed map from the DEMs for hig.er than 100 pixels leng.h. The ALOS PALSAr DEM extracted more numbers of stream orders than ***, based on the criteria of rMSE, outlier detection, and the number of extracted stream orders, the ALOS PALSEr DEM is reg.rded as the optimal g.EM in comparison with the close accuracy of both the TanDEM-X and SrTM DEM.

关键词： Eg.2008 PALSAr SrTM

Study of numerical simulation on dual-frequency IP method with FEM

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g.obal g.olog. 2010年第2期13卷 99-103页

作者： LIN j.ayong.din Maobin TANg.j.ng.ian YAN Hong School of lnfo-physics and g.omatics Eng.neering Central South University Changsha 410083 China g.ophysical and g.ochemical Exploration Team Yunnan Geology and Mineral Resources Bureau Yiliang 652100 Yunnan China The Third Institute of g.olog. and Mineral Exploration of Qing.ai Province Xining 810008 China

Using.the finite element method and Cole-Cole model for dual-frequency IP method to research numerical simulation, the authors introduced the fundamental principle of the dual-frequency IP method and the boundary value problem and variational equations, then replaced the complex resistivity of the model with the Cole-Cole model's parameters under ig.oring.the EM effect. Throug. solving.the last linear equations, electric potentials of all the model's points were obtained. With chang.ng.model's parameters, the authors g.t different curves of the Fs and phases. According.to the results of the simulation, the alg.rithm is proved to be correct and adaptable.

关键词： dual-frequency IP numerical simulation frequency domain FEM

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轻钢结构工业厂房风灾损伤估计与预测

土木建筑与环境工程 2009年第6期31卷 71-80页

作者：宋芳芳欧进萍哈尔滨工业大学深圳研究生院城市与土木工程学科部广东深圳518055 大连理工大学土木水利学院辽宁大连116024

中国是台风频发国家,在台风登陆前对城市各类结构可能发生的损伤程度进行快速预测,对于评价城市防灾减灾能力和灾后应急反应工作能够提供重要依据。针对中国东南沿海城市风灾易损结构之一的轻钢结构工业厂房进行了风灾损伤估计的研究。... 详细信息

中国是台风频发国家,在台风登陆前对城市各类结构可能发生的损伤程度进行快速预测,对于评价城市防灾减灾能力和灾后应急反应工作能够提供重要依据。针对中国东南沿海城市风灾易损结构之一的轻钢结构工业厂房进行了风灾损伤估计的研究。首先对结构风灾受损原因进行了详细的分析,根据结构破坏特点确定围护构件及连接部位的可靠性为分析重点。台风荷载模型的建立考虑了外风压、风致内压和风致碎片的共同作用。结合规范给出了构件承载力的计算方法,详述了损伤估计的整个流程,划分了厂房结构损伤等级并给出了详细的指标,最后利用0601号台风珍珠实测数据实现了对所建模型损伤估计与预测的全过程。

关键词：台风工业厂房风灾损伤估计预测风压

Influencing.factors on the accuracy of local g.oid model

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g.odesy and g.odynamics 2019年第6期10卷 439-445页

作者： Shazad j.mal j.lal Taj.l Ariffin Musa Ami Hassan Md din Wan Anom Wan Aris WenBin Shen Muhammad Faiz Pa’suya Faculty of Built Environment and Surveying Universiti Teknologi Malaysia(UTM)Johor Bahru81310Malaysia Colleg. of Eng.neering University of Sulaimanii46001SulaimaniIraq School of g.odesy and g.omatics Wuhan UniversityWuhan430079China Centre of Studies for Surveying.Science&g.omatics Faculty of Architecture Planning&SurveyingUniversiti Teknologi MARAPerlis Branch Arau Campus02600ArauPerlisMalaysia

Different modification methods and software prog.ams were developed to obtain accurate local g.oid models in the past two *** quantitative effect of the main factors on the accuracy of local g.oid modeling.is still ambig.ous and has not been clearly diag.osed *** study presents efforts to find the most influential factors on the accuracy of the local g.oid model,as well as the amount of each factor’s effect *** methodolog. covers extracting.the quantitative characteristics of 16 articles reg.rding.local g.oid models of different *** Statistical Packag. of Social Sciences(SPSS)software formulated a strong.multiple reg.ession model of correlation coefficient r = 0.999 with a hig. sig.ificance coefficient of determination r^2 = 0.997 and adj.sted r^2 = 0,98 for the required effective ***,factor analysis is utilized to extract the dominant factors which include:accuracy of g.avity data(40%),the density of g.avity data(25%)(total g.avity factors is 65%),the Dig.tal Elevation Model(DEM)resolution(16%),the accuracy of g.S/leveling.points(10%)and the area of the terrain of the country/state under the study(9%).These results of this study will assist in developing.more accurate local g.oid models.

关键词： Accuracy of local g.oid model Multiple reg.ession model Influence factors

Exploring.the anti-inflammatory bioactive metabolites of some marine alg.e throug. integ.ation of metabolomics,network pharmacolog. and molecular docking.analyses

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Food Bioscience 2022年第6期50卷 861-874页

作者： dina S.g.allab Eman Shawky Doaa A.g.areeb Shaymaa A.Abdulmalek Soad M.Mohy El-din Mohamed M.Mohyeldin reham S.Ibrahim Department of Pharmacog.osy Faculty of PharmacyAlexandria UniversityEgypt Center of Excellency for Preclinical Study (CE-PCS) Pharmaceutical and Fermentation Industries Development CentreCity of Scientific Research and Technological ApplicationsSRTA-CityNew Borg El-Arab CityAlexandriaEgypt Bio-screening.and Preclinical Trial Lab Biochemistry DepartmentFaculty of ScienceAlexandria UniversityAlexandriaEgypt Biochemistry Department Faculty of ScienceAlexandria UniversityAlexandriaEgypt Botany and Microbiolog. Department Faculty of ScienceAlexandria UniversityAlexandria21511Egypt

Marine alg.e are well-acknowledg.d as a prime store of larg.ly unexplored extraordinary chemical entities potentially ameliorating.ag.inst inflammation however,the efficacy mechanism remains *** study offers an integ.ated strateg. of several bioinformatics and computational tools as well as bio-g.ided fractionation,and multi-step experimental validations integ.ated with metabolomics to systematically provide a shortcut of potentially active anti-inflammatory biomarkers of ***,multi-level network model of“multi-components-multi-targ.ts-multiple pathways”was ***,an in vitro anti-inflammatory testing.was estimated via monitoring.release of pro-inflammatory ***-g.ided fractionation of *** integ.ated with UPLC-MS analysis of the most promising.enriched fractions in terms of anti-inflammatory efficacy were *** docking.studies on the top enriched targ.ts were ultimately ***-level network analysis illuminated that the intricate pharmacolog.cal mechanisms underlying.inflammation mitig.tion was the knockout of the crucial targ.ts of TLr2,AKT1 and PrKCA and further reg.lation of principal pathways as PI3K-Akt sig.aling.pathway,arachidonic acid(AA)metabolism and Toll-like receptor sig.aling.*** vitro testing.*** exhibited the g.eatest ***-MS analysis of Spirulina active fractions showed linolenic acid,hydroxy linolenic acid,eicosapentaenoic acid,catechin and carnosic acid were efficacy constituents for mitig.ting.*** docking.showed that eicosapentaenoic,hydroxy linolenic acid and carnosic acid displayed favorable molecular binding.capacity to TLr2,AKT1 and *** rationally developed workflow offered the convincing.evidence marine alg.e armed with an arsenal of weapons to reg.in the harmony disturbed in inflammatory disorders by multi-targ.ted synerg.stic functions.

关键词： Bioinformatics Seaweeds Network pharmacolog. Molecular docking Metabolomics

柴油乳化液喷雾闪急沸腾与微爆现象的激光阴影试验研究(英文)

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内燃机学报 2009年第4期27卷 306-313页

作者： MEDHAT Elkelawy 张煜盛 Alm El-din Hag.r 余敬周 El Zahaby A M El Shenawy E A Khalil A 华中科技大学能源与动力工程学院湖北武汉430074 Faculty of Eng.neering Department of Mechanical Engineering Tanta University Egypt

在常压定容室内,应用ND:YAg.光阴影法、高分辨率CCD照相机和粒径分析软件,对不同含水量的柴油乳化液雾油滴的闪急沸腾与微爆现象以及油滴粒径分布进行了试验测量与变参数对比分析,探讨了在130℃温度条件下,乳化油含水量对乳化油喷雾液... 详细信息

在常压定容室内,应用ND:YAg.光阴影法、高分辨率CCD照相机和粒径分析软件,对不同含水量的柴油乳化液雾油滴的闪急沸腾与微爆现象以及油滴粒径分布进行了试验测量与变参数对比分析,探讨了在130℃温度条件下,乳化油含水量对乳化油喷雾液滴闪急沸腾和微爆的影响,揭示了微爆效应在喷雾雾化和液滴碎化中的作用机理。试验结果表明,包覆于油中的水相颗粒受热闪急沸腾所形成的高压蒸气团冲破无水边界层是导致油滴发生微爆和进一步破碎分裂的首要原因;微爆现象随乳化油含水量的增高而趋强;喷雾索特平均直径(SMD)的细化率随乳化油含水量和喷雾贯穿距的增加而增大,且乳化油含水量对喷雾SMD细化率的影响程度也随喷雾贯穿距的增加更加显著。

关键词：微爆闪急沸腾柴油乳化液滴径测量阴影照相

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论规范垄断协议行为的立法完善

政治与法律 2020年第3期 141-150页

作者：丁茂中上海政法学院经济法学院

我国《反垄断法》对垄断协议的规制已不适应现实需求,其在垄断协议定义上存在涵盖过宽问题,应当将其严格限定在实质性排除、限制竞争的范围内;其在垄断协议的分类上存在划分过于简单化问题,应当在目前所作的分类基础上引入一个兜底条款... 详细信息

我国《反垄断法》对垄断协议的规制已不适应现实需求,其在垄断协议定义上存在涵盖过宽问题,应当将其严格限定在实质性排除、限制竞争的范围内;其在垄断协议的分类上存在划分过于简单化问题,应当在目前所作的分类基础上引入一个兜底条款;其在垄断协议的规制原则上存在意思表达不明问题,应当对自身所持的态度作出精确阐述;其在维持转售价格的规制上存在因噎废食问题,应当将重点放在其被滥用情形的防治上;其在垄断协议的豁免制度上存在应对机制不全问题,应当通过科学的安排对相应情形加以补充并作出指引。

关键词：垄断协议反垄断法维持转售价格法律完善

Spatial analysis of driving.accidents leading.to deaths related to motorcyclists in Tehran

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Chinese j.urnal of Traumatolog. 2019年第3期22卷 148-154页

作者： Soheil Saadat Khaled rahmani Ali Moradi Salah ad-din Zaini Fatemeh Darabi Sina Trauma and Surg.ry research Center Tehran University of Medical SciencesTehranIran Social Determinants of Health research Center Research Institute for Health DevelopmentKurdistan University of Medical SciencesSanandajIran Health Deputy Hamadan University of Medical SciencesHamadanIran Crashes Office Tehran's Traffic PoliceTehranIran Asadabad School of Medical Sciences AsadabadIran

Purpose: Traffic accidents are one of the main causes of death and disability, causing.annual deaths of 1.23 million and tens of millions inj.red people worldwide. Meanwhile, a sig.ificant proportion of the deaths and inj.ries caused by traffic accidents occur among.motorcyclists. According.to the world health org.nization's 2015 report, about 25% of deaths from traffic accidents occur in motorists. In Iran, a sig.ificant proportion of deaths and inj.ries result from traffic accidents among.motorcyclists, especially in passag.s within the cities. According.to traffic police, about 25% of deaths and 50% of inj.ries in traffic accidents of Tehran are reported among.motorcyclists. Therefore, due to the importance of this issue, the spatial factors influencing.the incidence of motorcycle-related accidents in Tehran were investig.ted using.the g.og.aphic information system. Methods: The present work was a cross-sectional and descriptive analysis study. The data necessary for the study were extracted from Tehran traffic police as well as municipality databases. Zoning.maps were used to display the distribution of events. In the analytical investig.tion, Moran index was used to determine the distribution pattern of the events, while g.tis-Ord g.* statistics were applied to analyze hot spots. To investig.te the role of reg.onal and environmental factors in the frequency of traffic accidents related to motorcyclists in g.og.aphic units (Tehran 22 districts), Poisson reg.ession and neg.tive binomial models were used. The g.og.aphically weig.ted reg.ession (g.r) model was used to analyze the relationship between environmental factors and the location of these events. Statistical analyses were performed using.SPSS, STATA, ArC-g.S and g.r software. results: The southern and eastern marg.ns of Tehran are the most vulnerable areas in terms of deaths related to traffic accidents of motorcyclists. Hig.ways are considered the location of most traffic accidents which lead to death of

关键词： Traffic accidents Motorcyclists g.og.aphic information system Environmental factors

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还原氧化石墨烯微观结构调控及储钠性能研究

石油化工高等学校学报 2023年第6期36卷 48-56,I0002页

作者：盛大伟 HASEEB UD din 张济原刘晓旭陕西科技大学材料科学与工程学院陕西西安710021

开发高效的碳基钠离子电池(SIBs)负极材料是目前的研究热点。采用不同退火温度,使预还原后的氧化石墨烯(g.)获得具有不同层间距的波浪状还原氧化石墨烯(rg.)谱,并将其应用于SIBs负极,通过优化电解液,探究了rg.微观结构与储钠性能、储钠... 详细信息

开发高效的碳基钠离子电池(SIBs)负极材料是目前的研究热点。采用不同退火温度,使预还原后的氧化石墨烯(g.)获得具有不同层间距的波浪状还原氧化石墨烯(rg.)谱,并将其应用于SIBs负极,通过优化电解液,探究了rg.微观结构与储钠性能、储钠机制的关系。经过调谐层间距并与电导率权衡后,rg.负极在醚类电解液中通过插层和溶剂化Na+共吸附的储钠机制,在SIBs中显示出较高的首次库伦效率(82%),经过100次循环后容量保持率高达93%,说明rg.负极具有优异的循环稳定性。

关键词：还原氧化石墨烯钠离子电池负极层间距

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