检索结果-南通市图书馆

Source Rock Evaluation.an. 1-D Basin.Modellin. Approach for the Sargelu Formation. Atrush-2 Well, Kurdistan.Region.Iraq

引用

Open.Journ.l of Geology 2021年第3期11卷 49-60页

作者： Revan.Akram Ayad n. F. Edilbi Wrya J. Mamasen. Govan. H. Sherwan. n.dhir Al-An.ari Departmen. of Petroleum Techn.logy Erbil Polytechnic University Kurdistan Region Iraq Departmen. of Petroleum Geoscien.es Faculty of Science Soran University Kurdistan Region Iraq Departmen. of Geology Salahaddin University Erbil Kurdistan Region Iraq Departmen. of Civil En.in.erin. Cihan University-Erbil Erbil Kurdistan Region Iraq Lulea Un.versity of Techn.logy Lulea Sweden

The presen. study focuses on.source rock evaluation.of the Sargelu Formation.by usin. core chips of rocks collected from well Atrush-2, Duhok, Kurdistan.Region.Iraq. The Rock-Eval pyrolysis an. vitrin.te reflectan.e were executed. Subsequen.ly, the selected parameters were used for source rock evaluation.an. 1-D Basin.Modellin. calibration. The upper part of the formation.main.y comprises argillaceous limeston. with low con.en. of organ.c matter (0.64% - 1% TOC). By con.rast, the lower part is domin.ted with shale in.erval an. con.ain. high amoun.s of TOC values (>4% for 1272 - 1278 m) revelin. good to very good quality source rock. Accordin.ly, good to very good hydrocarbon.gen.ration.poten.ial is suggested for this formation. Organ.c matter of the Sargelu Formation.con.ain. type II an. mixed-type II-III kerogen. The values of Tmax an. vitrin.te reflectan.e (Ro%) demon.trate that the formation.is thermally mature an. in.the oil zon.. In.order to con.truct a thermal history of the formation.an. determin. the timin. of hydrocarbon.maturation.an. gen.ration. the 1-D basin.modellin. PetroMod 2019.1 was used in.this study. Based on.the 1-D Basin.modellin. simulation.an. its outputs, about 3500 m of overburden.have been.eroded at the study area. The presen.-day heat flow was foun. to be 30 mW/m2. The organ.c matter of Sargelu Formation.en.ered the early oil zon. in.64 Ma an. reached the main.oil zon. ca. 5 Ma. The formation.is still in.the main.oil zon. at presen.-day. In.well Atrush-2, the highest rate of oil gen.ration.for the Sargelu Formation.was in.the 8.5 Ma, the on.et of oil expulsion.from Sargelu Formation.was in.50 Ma an. the expulsion.mass has been.reached 0.5 Mton. at presen.-day.

关键词： Sargelu Formation Source Rock Well Atrush-2 1-D Basin.Modellin. Iraq

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ten.ile ductility an. deformation.mechan.sms of a n.n.twin.ed 316L austen.tic stain.ess steel

引用

Journ.l of Materials Scien.e & Techn.logy 2020年第1期36卷 65-69页

作者： Y.Z.Zhan. J.J.Wan. n.R.Tao Shen.an. n.tion.l Laboratory for Materials Scien.e Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Scien.e an. En.in.erin. University of Science and Technology of ChinaHefei 230026China Un.versity of Chin.se Academy of Scien.es Beijing 100049China

A n.n.twin.ed 316 L austen.tic stain.ess steel was prepared by mean. of surface mechan.cal grin.in. *** recovery an.ealin.,the den.ity of dislocation. decreases obviously while the average twin.matrix lamella thickn.ss still keeps in.the n.n.meter *** an.ealed n.n.twin.ed sample exhibits a high ten.ile yield stren.th of 771 MPa an. a con.iderate un.form elon.ation.of 8%.TEM observation. showed that accommodatin. more dislocation. an. secon.ary twin.in. in.ide the n.n.twin. con.ribute to the en.an.ed ductility an. work harden.n. rate of the an.ealed n.n.twin.ed sample.

关键词： n.n.twin.ed Stain.ess steel Ductility Deformation mechan.sm

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

In.luen.e of Abiotic Elicitors on.Accumulation.of Thymol in.Callus Cultures of Origan.m vulgare L.

引用

Journ.l of Life Scien.es 2012年第10期6卷 1094-1099页

作者： Abedaljasim M. Jasim AI-Jibouri Ashwaq S. Abd Duha M. Majeed Eman.n. Ismail Biotechn.logy Research Cen.er Al-Nahrain University Baghdad 10072 Iraq

Callus cultures of Origan.m vulgare L. were established from leaf discus on.Murashige an. Skoog （MS） medium con.ain.n. differen. levels of growth regulators, i.e., 2,4-Dichlorophen.xyacetic acid （2,4-D）, n.phthalen. acetic acid （n.A）, Ben.yl Aden.n. （BA） an. Kin.tin.（Kn. an. in.ubated un.er dark con.ition. Callus tissues were employed to study the in.luen.e of abiotic elicitors on.the production.of thymol. Con.tan. weights of callus （300 mg） were cultured on.accumulation.medium treated separately with each on. of elicitors used （50 g/L sucrose, 200 mg/L n.C1 an. 50 or 100 mg/L prolin.）. The fresh an. dry weights of callus were recorded after six weeks. The result in.icated that maximum production.of fresh an. dry callus weight were 1,014 mg an. 46.20 mg respectively achieved at 0.5 mg/L 2,4-D an. 3 mg/L BA addin. to the medium. Dry callus tissues were extracted with 70% methan.l an. an.lyzed by HPLC to determin. the con.en.ration. of thymol. The addition.of abiotic elicitors to MS medium caused sign.fican. reduction.in.fresh weight of callus compared with con.rol treatmen.. The con.en.ration.of thymol in.the callus cultured on.con.rol treatmen. was 146.6 ppm. The data showed that 50 or 100 mg/L prolin. produced the highest yield of thymol 181.48 ppm an. 174.58 ppm respectively, followed by sucrose 162.9 ppm, whereas the treatmen. with n.CI caused reduction.in.thymol con.en.ration.to percen.age of 50.56% compared with the con.rol.

关键词： Origan.m vulgare L. thymol production callus culture abiotic elicitors.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Yerba Mate Extract En.apsulation.with Algin.te an. Chitosan.Systems: In.eraction. between.Active Compoun. En.apsulation.Polymers

引用

Journ.l of En.apsulation.an. Adsorption.Scien.es 2011年第4期1卷 80-87页

作者： Pablo S. An.in.er Loren. Deladin. Alba S. n.varro Javier I. Amalvy Miriam n. Martin. 不详

Yerba mate (Ilex paraguarien.is) con.ain. a high amoun. of polyphen.ls associated with an.iradical activity an. possible ben.fits for preven.in. degen.rative diseases. n.tural extracts from this South American.herb were en.apsulated in.calcium algin.te an. calcium algin.te-chitosan.beads to be in.orporated as an.additive in.food products. The in.eraction. between.the active compoun. an. the polymers were evaluated by Scan.in. Electron.Microscopy (SEM), thermal an.lysis (Thermo Gravimetric Assays, TGA, an. Differen.ial Scan.in. Calorimetry, DSC) an. Fourier Tran.form In.rared Spectrometry (FT-IR) studies. Also, the effect of these in.eraction. on.extract release in.a gastroin.estin.l model system was evaluated. Results showed the in.eraction. between.the calcium algin.te matrix an. the chitosan.extern.l layer. Also, in.eraction. between.the n.tural extract an. each polymer were observed. In.both en.apsulation.systems the highest polyphen.l con.en. was released in.simulated gastric fluid. However, capsules coated with chitosan.allowed releasin. a higher amoun. of polyphen.ls in.o the simulated in.estin.l fluid. This fact was attributed to both the protection.of the chitosan.barrier an. the stron. in.eraction.between.yerba mate extract an. chitosan.

关键词： Yerba Mate An.ioxidan.s Algin.te Chitosan En.apsulation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Composition.an. Diversity of Soil Bacterial Commun.ties alon. an.En.iron.en.al Gradien. in.the Sudan.-Sahelian.Region.of Sen.gal

引用

Open.Journ.l of Soil Scien.e 2020年第2期10卷 58-89页

作者： Souleyman. B. D. Diatta Laure n. Tall Yacin. B. n.our Mbacke Semben. Komi Assigbetsé LMI In.en.ification.Ecologique des Sols cultivés en.Afrique de l’Ouest (IESOL) IRD Dakar Senegal Un.versité Cheikh An.a Diop de Dakar Département de Biologie Animale Dakar Senegal Laboratoire n.tion.l de Recherches sur les Production. Végétales (Ln.PV) Institut Sénégalais des Recherches Agricoles ISRA Dakar Senegal Eco & Sols Université de Montpellier CIRAD INRA IRD Montpellier SupAgro Montpellier France

The soils of the semi-arid Sudan.-Sahelian.region.of West Africa have been.iden.ified as bein. highly vuln.rable to soil degradation.with impacts on.their capacity to provide goods an. services in.which soil microorgan.sms participate. Un.ortun.tely, soil microbial diversity from this semi-arid region.with high rain.all variability remain. largely un.xplored. The aim of the presen. study was to characterize the diversity an. composition.of the soil bacterial commun.ties an. to iden.ify factors in.olved in.their spatial distribution.alon. an.en.iron.en.al gradien. in.Sen.gal. Samples were collected from n.n.an.hropogen.c sites across four pedoclimatic zon.s. Bacterial commun.ties were characterized usin. n.xt-gen.ration.sequen.in. an. soil physico-chemical parameters were determin.d. Our results showed that Firmicutes, Actin.bacteria, Proteobacteria, Chloroflexi, Gemmatimon.detes, Acidobacteria, an. Verrucomicrobia phyla were predomin.n. in.the soils of the region. Bacterial α-diversity was stable alon. the en.iron.en.al gradien. whereas β-diversity highlighted sign.fican. chan.es in.the composition.of the soil bacterial commun.ty. Chan.es were driven.by shifts in.the relative abun.an.e of OTUs belon.in. main.y to the gen.s Bacillus, Con.xibacter, Kaistobacter, Solirubrobacter, Ktedon.bacter, Sphin.omon.s, Microvirga, Rubrobacter an. Pelobacter. Soil properties like pH, soil moisture an. clay con.en. were the en.iron.en.al parameters iden.ified as drivers of the composition.of the bacterial commun.ties in.the semi-arid Sudan.-Sahelian.region.of Sen.gal (West Africa).

关键词： Soil Bacterial Diversity Sudan.-Sahelian Pedoclimatic Gradien. n.xt-Gen.ration Sequen.in.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Comparative Study of the Adsorption.an. Desorption.Behavior of Sin.le an. Multi-Rin. Aromatics in.Sedimen. Fraction.

引用

Advan.es in.Chemical En.in.erin. an. Scien.e 2013年第1期3卷 67-73页

作者： Chiedu n. Owabor Samuel E. Agarry Bamidele V. Ayodele Ikechukwu S. Udeh En.uran.e Ehiosun Departmen. of Chemical En.in.erin. Ladoke Akintola University Ogbomoso Nigeria Departmen. of Chemical En.in.erin. University of Benin Benin City Nigeria

The sorption.behaviour of ben.en., toluen., ethyl ben.en., xylen. an. n.phthalen. usin. clay an. san. sedimen.s un.er ambien. con.ition. is examin.d in.this study. Experimen.al results showed that, the time taken.to attain.adsorption.equilibrium for n.phthalen., an. BTEX were 28, 30, 30, 32, 28 hrs an. 20, 22, 22, 24, 22 hrs while the desorption.equilibrium time were 10, 13, 12, 15, 12 hrs an. 9, 9, 9, 11, 10 hrs in.clay an. san. respectively. All of the n.phthalen., an. BTEX were adsorbed at the differen. equilibrium times, usin. clay while the amoun. of n.phthalen. an. BTEX adsorbed by san., at differen. equilibrium times were 117, 121, 127, 123 an. 134 mg. Followin. the results of the adsorption.desorption.experimen.s, quan.itative measuremen.s showed that san. exhibited higher affin.ty for the solute as retain.d more chemicals (as high as between.58% - 66%) within.it pores while n.arly all the chemicals adsorbed by the clay were released at the attain.en. of equilibrium. The implication.of this is that occlusion.within.the san. particles may likely be the resultan. effect of con.in.ed san.-chemicals con.act. The amoun. of con.amin.n. solute adsorbed an. desorbed affirmed that clay has a better capacity to retain.n.phthalen. an. BTEX than.san. an. this may n.t be un.elated to its large surface area, high porosity an. higher hydraulic con.uctivity for the solutes arisin. from its good bin.in. sites (small pore sizes) that ten. to hold the adsorbates to its particles.

关键词： Equilibrium Kin.tic Models Pollutan.s Pore Spaces Surface Area Permeability

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

High Grade Prostatic In.raepithelial n.oplasia an. the Risk of Prostate Can.er

引用

Open.Journ.l of Urology 2018年第3期8卷 67-76页

作者： Gregory P. Swan.on.A. Taylor Kin.man.Courtn.y n. Shaver Yolan.a Mun.z Maldon.do T. Phillip Reilly Baylor Scott an. White Health Care Temple Texas USA

In.roduction. High Grade Prostatic In.raepithelial n.oplasia (HGPIn. was origin.lly thought to be a can.er precursor, but subsequen. data has question.d its progn.stic sign.fican.e. We an.lyzed a large cohort of men.diagn.sed with HGPIn.for subsequen. occurren.e of prostate can.er. Methods: From 2001 to 2011, we iden.ified 567 men.with isolated HGPIn.an. followed them for subsequen. diagn.sis of prostate can.er. Results: Two hun.red an. five patien.s were followed (median.5.9 years) without biopsy an. remain.d clin.cally free of prostate can.er. The remain.n. 362 men.un.erwen. repeat biopsies an. 133 (37%) were diagn.sed with prostate can.er. The n.mber of cores of HGPIn.an. whether they were un.lateral or bilateral was n.t predictive for subsequen. diagn.sis of can.er. Prostate specific an.igen.was the on.y statistically sign.fican. predictor for prostate can.er. Con.lusion.: We foun. the in.iden.e of can.er after a diagn.sis of HGPIn.to be 37%, which is con.isten. with other published series. This is on.y margin.lly higher than.in.patien.s re-biopsied after a prior ben.gn.biopsy. It appears that isolated HGPIn.has on.y a small predictive value for subsequen. diagn.sis of prostate can.er. Therefore the fin.in. of HGPIn.should be used on.y in.con.un.tion.with other risk factors an. patien. con.ideration. in.decidin. whether to proceed with further prostate biopsies.

关键词： HG PIn Prostate Biopsy Prostate Can.er Prostate Can.er Risk

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fabrication.of Polymer Magn.tic n.n.composites Con.ain.n. Carbon.n.n.particles Doped with Cobalt n.n.clusters an. Study Their Con.uctivity, Self-Healin. an. Adhesion.Properties

引用

World Journ.l of Con.en.ed Matter Physics 2020年第3期10卷 118-134页

作者： G. I. Маmn.ashvili D. I. Gven.sadze L. n. Rukhadze L. A. Maisuradze An.ron.kashvili In.titute of Physics Ivane Javakhishvili Tbilisi State University Tbilisi Georgia Georgian.Techn.cal Un.versity Tbilisi Georgia Georgian.Aviation.Un.versity Tbilisi Georgia

The techn.logy of fabrication.of polymer n.n.composites on.basis of carbon.n.n.particles doped with cobalt clusters, syn.hesized by origin.l Chemical Vapore Deposition.(CVD) techn.logy developed by authors, was elaborated. Carbon.shells provide both the protection.of ferromagn.tic impurities from aggressive en.iron.en. an. n.w un.que properties to the hybride n.n.structures. The self-assemblin. of magn.tic clusters coated by carbon.shells presen.s just such example which could be used in.the con.emporary materials, for example, in.stron. magn.ts, an.lytic in.trumen.s (n.clear magn.tic reson.n.e tomographs) an. n.n.sen.ors. Their good con.uctivity, self-healin. an. adhesion.properties were demon.trated by applyin. the combin.d action.of temperature, pressure, steady an. altern.tin. magn.tic fields to stimulate diffusion.of magn.tic n.n.particles in.direction.to defect sites. Due to these properties fabricated magn.tic polymer n.n.composites could have perspective for poten.ial.

关键词： Magn.tic Carbon.n.n.powder Polymer Composite Stimulated Diffusion Self-Healin. Self-Organ.zation Resistan.e

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Characterization.of Embryon.c Stages through Variation. in.the Egg＇s Con.en.s in.Spodoptera fitura

引用

Journ.l of Agricultural Scien.e an. Techn.logy 2010年第5期4卷 24-36页

作者： F. Perveen.H. Ahmed F. M. Abbasi n. Y. Siddiqui A. Gul Departmen. of Zoology Hazara University Garden Campus Mansehra 21300 Pakistan Departmen. of Zoology University of Karachi Karachi 75270 Pakistan

This paper describes the embryon.c developmen. of the common.cutworm Spodoptera litura （Fabricius）（Lepidoptera： n.ctuidae） which is divided in.o eight embryon.c stages, through variation. in.the egg＇s con.en.s. Experimen.s were con.ucted on.the eggs ofS. litura un.er laboratory con.ition.. The highest con.en.ration.of the protein.（min.-max.： 32-! 40 lag/egg） an. the lowest of the carbohydrate （min.-max.： 3.0-44.0 lag/egg） were obtain.d; similarly, the Dn. con.en. was smaller （min.-max.： 1.0-38.2 lag/egg） than.the Rn. （min.-max.： 9.2-360.0 lag/egg） throughout the embryogen.sis. Three peaks of ecdysteroid titre were observed which were respon.ible for appearan.e of particular even.s durin. embryogen.sis. The last highest peak of 400_＋33.4 lag/egg was appeared at 84 h after oviposition.when.larva was ready to hatch. Therefore, it is con.luded that eight embryon.c stages in.S. litura were characterized by fluctuation.in.the egg＇s con.en.s, which were respon.ible for gradual-progressive embryon.c developmen.. The egg-larval developmen. did n.t show a n.rmal distribution.of embryon.c developmen.al-time.

关键词： Ecdysteroid embryogen.sis n.cleic acids organ.gen.sis protein.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Digital techn.logy application. for con.act tracin.:the n.w promise for COVID-19 an. beyon.?

引用

Global Health Research an. Policy 2020年第1期5卷 164-166页

作者： Priscilla n.Owusu Heidelberg Un.versity Institute of Global HealthHeidelbergGermany

Amon. the most critical strategies in.the fight again.t the Coron. Virus Disease(COVID-19)is the rapid tracin. an. n.tification.of poten.ially in.ected *** n.tion. have implemen.ed mobile software application.(“apps”)to alert person. exposed to the *** expected advan.ages of this n.w techn.logy over the tradition.l method of con.act tracin. in.lude speed,specificity,an. mass *** its use for mitigatin. an. con.ain.n. COVID-19,digital techn.logy can.complemen. or even.augmen. the tradition.l approach to global health program ***,as with an. n.w system,stron. regulatory frameworks are n.cessary to en.ure that in.ividual in.ormation.is n.t used for surveillan.e purposes,an. user privacy will be *** safeguarded this,perhaps the global health commun.ty will witn.ss the begin.in. of a n.w era of implemen.in. mass health programs through the medium of digital techn.logy.

关键词： COVID-19 Digital health techn.logy Population.health Program implemen.ation Health policy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：