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Fracture prediction in the tight-oil reservoirs of the Triassic Yanchang Formation in the Ordos Basin,northern china

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Petroleum Science 2017年第1期14卷 1-23页

作者： wen-Tao Zhao Gui-ting Hou The Key Laboratory of Orogenic Belts and Crustal Evolution of Ministry of Education School of Earth and Space SciencesPeking UniversityBeijing 100871China china Huaneng Clean Energy Research Institute Beijing 102209China Petro china Research Institute of Petroleum Exploration and Development Beijing 100083China

It is important to predict the fracture distribution in the tight reservoirs of the Ordos Basin because fracturing is very crucial for the reconstruction of the low-permeability reservoirs. Three-dimensional finite element models are used to predict the fracture orientation and distribution of the Triassic Yanchang Formation in the Longdong area, southern Ordos Basin. The numerical modeling is based on the distribution of sand bodies in the Chang 7a and 72 members, and the different forces that have been exerted along each boundary of the basin in the Late Mesozoic and the Cenozoic. The calculated results demonstrate that the fracture orientations in the Late Mesozoic and the Ceno- zoic are NW-EW and NNE-ENE, respectively. In this paper, the two-factor method is applied to analyze the distribution of fracture density. The distribution maps of predicted fracture density in the Chang 71 and 72 members are obtained, indicating that the tectonic movement in the Late Mesozoic has a greater influence on the fracture development than that in the Cenozoic. The average fracture densities in the Chang 71 and 72 members are similar, but there are differences in their distributions. Compared with other geological elements, the lithology and the layer thickness are the primary factors that control the stress distribution in the study area, which further determine the fracture distribution in the stable Ordos Basin. The predicted fracture density and the two-factor method can be utilized to guide future exploration in the tight-sand reservoirs.

关键词： Ordos Basin - Yanchang Formation Fractureprediction Finite element modeling Two-factor methodTight-sand reservoirs

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In situ synthesis and hardness of TiC/Ti_5Si_3 composites on Ti-5Al-2.5Sn substrates by gas tungsten arc welding

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International Journal of Minerals,Metallurgy and Materials 2013年第3期20卷 284-289页

作者： wen-qing Yan Le Dai chi-bin Gui School of Mechanical and Automotive Engineering South China University of Technology School of Materials and Metallurgy Wuhan University of Science and Technology Military Representative Office of Navy 407 Factory College of Materials Science and Engineering Huazhong University of Science and Technology

TiC/TisSi3 composites were fabricated on Ti-5A1-2.5Sn substrates by gas tungsten arc welding （GTAW）. Identification of the phases was performed using X-ray diffraction （XRD）. The microstructures were analyzed using scanning electron microscopy （SEM） combined with energy-dispersive X-ray spectrometry （EDS） and optical microscopy （OM）. The Vickers hardness was measured with a micro-hardness tester. The TiC/TisSi3 composites were obtained in a double-layer track, and the Vickers hardness of the track increased by two to three times compared with the Ti-5A1-2.5Sn substrate.

关键词： titanium alloys surface modification gas tungsten arc welding (GTAW) microstructure hardness

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Improvement of Surface Ridging Resistance of an Ultra-purified Ferritic Stainless Steel by Optimizing Hot Rolling Condition

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Acta Metallurgica Sinica(English Letters) 2016年第6期29卷 561-567页

作者： chi Zhang Li-wen Zhang Zhen-Yu Liu School of Materials Science and Engineering Dalian University of Technology State Key Lab of Rolling Technologies and Automation Northeastern University

The effects of the finisher entry temperatures（FETs） on the surface ridging behavior for an ultra-purified21%Cr ferritic stainless steel have been investigated. The results indicate that decreasing the FET facilitates the formation of in-grain shear bands in the hot rolled slab. The in-grain shear bands supplied recrystallization nucleation sites in grains during subsequent annealing through coalescence of subgrains, which is beneficial to refine the microstructures and intensify the {111}//ND textures. This effect will evolve to the final cold rolled and annealed sheet. The micro-texture analysis indicates that the formation of grain colony in the final sheet is weakened by decreasing the FET. Then, the surface ridging resistance of FSS is enhanced due to the optimizing of micro-texture distribution.

关键词： Ferritic steels Surface ridging Micro-texture Electron backscattered diffraction(EBSD)

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Adipose Rheb deficiency promotes miR-182-5p expression via the cAMP/PPARγsignaling pathway

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Journal of Genetics and Genomics 2023年第1期50卷 20-26页

作者： Jie wen Jiangming Deng ting Xiao Yu Liu wen Meng Department of Nephrology Hunan Key Laboratory of Kidney Disease and Blood PurificationThe Second Xiangya Hospital of Central South UniversityChangshaHunan 410011China Metabolic Syndrome Research Center The Second Xiangya Hospital of Central South UniversityChangshaHunan 410011China

Dysregulation of microRNAs(miRNAs)in adipocytes plays a critical role in the pathogenesis of ***,the signaling mechanisms regulating miRNAs production in adipose tissue remain largely ***,we show that adipose tissue-specific knockout of Ras homolog enriched in brain(Rheb),a direct upstream activator of mTOR,increases miR-182-5p level in mouse subcutaneous white adipose ***,the inhibition of mTOR signaling by rapamycin has no effect on miR-182-5p level in primary subcutaneous white adipocytes,suggesting the presence of a mTOR-independent mechanism regulating Rheb-mediated miR-182-5p *** with this view,Rheb-ablation activates the cAMP/PPARγsignaling *** addition,treatment of white adipocytes with pioglitazone,a PPARγagonist,dramatically upregulates miR-182-5p *** study reveals a unique mechanism by which Rheb regulates miR-182-5p in *** that increasing miR-182-5p in adipose tissue promotes beige fat development,our study also suggests a unique mechanism by which Rheb promotes thermogenesis and energy expenditure.

关键词： Rheb miR-182-5p White adipocytes cAMP/PPARγpathway Adipose tissue

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Chemical Investigation of Potassium Methyl Siliconate as Deacidification and Strengthening Agent for Preservation of Aged Papers

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chinese Journal of Polymer Science 2015年第12期33卷 1672-1682页

作者： Shu-juan Zhang 张小岗 wen-ting Shang Department of Chemistry Renmin University of China

Potassium methyl siliconate （PMS） was investigated as a simple physicochemical modification in aged paper using silane coupling technique. The PMS-based solution was shown to favor penetration in the cellulose fibers on the paper with suitable uptakes being achieved at low concentrations. The studies of the physicochemical properties of the treated paper （mechanical strength and alkalinity） demonstrated that, besides the required deacidification feature and high level of alkali reserves, the immersion treatment by PMS allowed the enhancement of the mechanical intensities of paper arising from the interaction between Si--OH generated in hydrolysis of PMS and C--OH of cellulose on the paper. Adding ethanol into PMS solution could significantly improve mechanical properties of the aged paper treated by the formula apart from modifying the flatness of the paper. Optimized treatment process was achieved by altering the ratio of ethanol to water in PMS-based solutions. Contact angle measurements indicated the occurrence of hydrophobic character of the papers in immersion treatment with PMS-based solutions. The easy availability of the materials and simplicity of the method rendered it convenient for treatment for aged paper documents.

关键词： Potassium methyl siliconate Paper Deacidification Reinforcement Ageing.

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Fungal diversity notes 1–110:taxonomic and phylogenetic contributions to fungal species

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Fungal Diversity 2015年第3期72卷 1-197页

作者： Jian Kui Liu Kevin D.Hyde E.B.Gareth Jones Hiran A.Ariyawansa Darbhe J.Bhat Saranyaphat Boonmee Sajeewa S.N.Maharachchikumbura Eric H.C.McKenzie Rungtiwa Phookamsak Chayanard Phukhamsakda Belle Damodara Shenoy Mohamed A,Abdel-Wahab Bart Buyck Jie Chen K.W.Thilini Chethana Chonticha Singtripop Dong Qin Dai Yu Cheng Dai Dinushani ADaranagama Asha J.Dissanayake Mingkwan Doilom Melvina J.D’souza Xin Lei Fan Ishani DGoonasekara Kazuyuki Hirayama Sinang Hongsanan Subashini C.Jayasiri Ruvishika S.Jayawardena Samantha C.Karunarathna wen Jing Li Ausana Mapook Chada Norphanphoun Ka Lai Pang Rekhani H.Perera Derek Peršoh Umpava Pinruan Indunil CSenanayake Sayanh Somrithipol Satinee Suetrong Kazuaki Tanaka Kasun M.Thambugala Qing Tian Saowaluck Tibpromma Danushka Udayanga Nalin N.Wijayawardene Dhanuska Wanasinghe Komsit Wisitrassameewong Xiang Yu Zeng Faten AAbdel-Aziz Slavomir Adamčík Ali H.Bahkali Nattawut Boonyuen Timur Bulgakov Philippe Callac Putarak Chomnunti Katrin Greiner Akira Hashimoto Valerie Hofstetter Ji Chuan Kang David Lewis Xing Hong Li Xing Zhong Liu Zuo Yi Liu Misato Matsumura Peter E.Mortimer Gerhard Rambold Emile Randrianjohany Genki Sato Veera Sri-Indrasutdhi Cheng Ming Tian Annemieke Verbeken Wolfgang von Brackel Yong Wang ting chi wen Jian Chu Xu Ji Ye Yan Rui Lin Zhao Erio Camporesi Guizhou Key Laboratory of Agricultural Biotechnology Guizhou Academy of Agricultural SciencesGuiyang 550006GuizhouChina Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming 650201YunnanChina Institute of Excellence in Fungal Research and School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Department of Botany and Microbiology King Saudi UniversityRiyadhSaudi Arabia Manaaki Whenua Landcare Research Private Bag 92170AucklandNew Zealand Formerly Department of Botany Goa UniversityGoaIndia No.128/1–J Azad Housing SocietyCurcaGoa VelhaIndia Muséum national d’histoire naturelle Dépt.Systématique etévolutionUMR 720575005 ParisFrance Institute of Microbiology&Beijing Key Laboratory for Forest Pest Control Beijing Forestry UniversityPO Box 61Beijing 100083China Institute of Plant and Environment Protection Beijing Academy of Agriculture and Forestry SciencesNo.9 of Shu Guang Hua Yuan Zhong LuHaidian DistrictBeijing 10097China The Key Laboratory for Silviculture and Conservation of Ministry of Education Beijing Forestry UniversityBeijing 100083China Mycology University of BayreuthUniversitätsstraße 3095440 BayreuthGermany The United Graduate School of Agricultural Sciences Iwate University18-8 Ueda 3 chomeMorioka 020-8550Japan Apple Experiment Station Aomori Prefectural Agriculture and Forestry Research Center24 FukutamiBotandairaKuroishiAomori 036-0332Japan Department of Plant Protection Agroscope Changins-Wadenswil Research Station ACWRte de Duiller1260 NyonSwitzerland Department of Botany and Microbiology College of ScienceKing Saud UniversityP.O.Box:2455Riyadh 1145Saudi Arabia Department of Botany Faculty of ScienceSohag UniversitySohagEgypt Institute of Botany Slovak Academy of SciencesDúbravskácesta 984523 BratislavaSlovakia Hirosaki University Bleakwood262 CR 3062NewtonTexas 75966USA Faculty of Agriculture and Life Sciences Hirosaki University3 Bunkyo-choHirosakiAomori

This paper is a compilation of notes on 110 fungal taxa,including one new family,10 new genera,and 76 new species,representing a wide taxonomic and geographic *** new family,Paradictyoarthriniaceae is introduced based on its distinct lineage in Dothideomycetes and its unique *** family is sister to Biatriosporaceae and *** new genera are Allophaeosphaeria(Phaeosphaeriaceae),Amphibambusa(Amphisphaeriaceae),Brunneomycosphaerella(Capnodiales genera incertae cedis),Chaetocapnodium(Capnodiaceae),Flammeascoma(Anteagloniaceae),Multiseptospora(Pleosporales genera incertae cedis),Neogaeumannomyces(Magnaporthaceae),Palmiascoma(Bambusicolaceae),Paralecia(Squamarinaceae)and Sarimanas(Melanommataceae).The newly described species are the Ascomycota Aliquandostipite manochii,Allophaeosphaeria dactylidis,***,Alternaria cesenica,Amphibambusa bambusicola,Amphisphaeria sorbi,Annulohypoxylon thailandicum,Atrotorquata spartii,Brunneomycosphaerella laburni,Byssosphaeria musae,Camarosporium aborescentis,***,***,Chaetocapnodium siamensis,Chaetothyrium agathis,Colletotrichum sedi,Conicomyces pseudotransvaalensis,Cytospora berberidis,***,Diaporthe thunbergiicola,Diatrype palmicola,Dictyosporium aquaticum,***,***,Didymella cirsii,Dinemasporium nelloi,Flammeascoma bambusae,Kalmusia italica,***,Keissleriella sparticola,Lauriomyces synnematicus,Leptosphaeria ebuli,Lophiostoma pseudodictyosporium,***,Lophiotrema eburnoides,Montagnula graminicola,Multiseptospora thailandica,Myrothecium macrosporum,Natantispora unipolaris,Neogaeumannomyces bambusicola,Neosetophoma clematidis,***,Oxydothis atypica,Palmiascoma gregariascomum,Paraconiothyrium nelloi,***,Paradictyoarthrinium tectonicola,Paralecia pratorum,Paraphaeosphaeria spartii,Pestalotiopsis digitalis,***,***,Phaeoisaria pseudoclematidis,Phragmocapnias philippinensis,Pseudocamarosporium cotinae,Pseudocercospora tam

关键词： Ascomycota Basidiomycota Global Taxonomy Initiative Phylogeny Taxonomy

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Rise of the ethylene biosynthesis machinery from the Cβ-S lyase

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Molecular Plant 2022年第5期15卷 784-787页

作者： Mengchen Tong chi-Kuang wen National Key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China

1-aminocyclopropane-1-carboxylic acid(ACC),produced from S-adenosyl-methionine(SAM)by ACC synthase(ACS),is oxidized by ACC oxidase(ACO)to produce the gaseous plant hormone ethylene in seed plants(Kende,1993).

关键词： oxidized machinery gaseous

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基于结构动力学的EGFR罕见突变型(S768I)致NSCLC分子机制研究

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原子与分子物理学报 2025年第1期42卷 41-48页

作者：王雨婷刘梦婷王妍雯侯清梅杨力权桑鹏大理大学农学与生物科学学院大理671003 大理大学云南省教育厅生物信息与计算生物学重点实验室大理671003

表皮生长因子受体(EGFR)基因突变是导致非小细胞肺癌(NSCLC)的重要诱因.S768I点突变作为EGFR的一种罕见突变,目前尚无标准的靶向治疗方法,因此详细了解EGFR S768I突变体与野生型的结构差异对于开发相关药物至关重要.为了探究S768I突变在... 详细信息

表皮生长因子受体(EGFR)基因突变是导致非小细胞肺癌(NSCLC)的重要诱因.S768I点突变作为EGFR的一种罕见突变,目前尚无标准的靶向治疗方法,因此详细了解EGFR S768I突变体与野生型的结构差异对于开发相关药物至关重要.为了探究S768I突变在NSCLC中的作用,对WT-EGFR和S768I-EGFR进行分子动力学(MD)模拟、本质动力学(ED)分析和自由能图谱(FEL)重构.MD模拟表明S768I突变增加了EGFR的全局和局部柔性;ED分析得出的大尺度协同运动表明,区分活性状态和非活性状态的两个重要结构元件A-loop和αC-helix在S768I-EGFR中比在WT-EGFR中具有更明显的过渡到活动状态的趋势;自由能计算显示S768I-EGFR的FEL比WT-EGFR的更粗糙更复杂,这意味着S768I突变体具有更丰富的构象多样性.研究结果为S768I突变导致NSCLC提供了合理的分子机理解释,并为开发针对S768I突变患者的新靶向治疗药物提供帮助.

关键词：表皮生长因子受体(EGFR) S768I 分子动力学模拟本质动力学自由能图谱

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Effect of BaO and MgO on structure and properties of aluminate slag with various CaO/Al_(2)0_(3)ratios

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Journal of Iron and Steel Research International 2024年第1期31卷 204-214页

作者： Yu-qi Kong ting Wu wen-zhi Xia wen Yang Hai-chuan Wang School of Metallurgical Engineering Anhui University of TechnologyMa’anshan243032AnhuiChina Key Laboratory of Metallurgical Emission Reduction and Resource Recycling(Ministry of Education) Anhui University of TechnologyMa’anshan243002AnhuiChina

To provide theoretical guidance for performance stability control of low-reactive mold fluxes,the effects of BaO and MgO on the structure and properties of aluminate slag with various CaO/Al_(2)0_(3)(C/A)ratios were investigated using the Fourier transform infrared spectrometer,Raman spectroscope,hemispherical melting point instrument,rotational viscometer and X-ray *** results indicated that with BaO and MgO addition,the structure polymerization was first weakened and then enhanced at C/A of 1.1,and the transition contents corresponded to 8 wt.%BaO and 2 wt.%MgO,respectively,while the structure polymerization decreased continuously at C/A of *** the viscosity change was well consistent with the structure evolution,the polymerization degree played a more prominent role in the slag viscosity than superheat degree when the melting temperature difference was within 40℃.The break temperature decreased initially and then increased with augment of BaO and MgO at C/A of 1.1,while it manifested a decrease trend with BaO addition,and it decreased obviously but then turned to increase with MgO increment at C/A of *** crystallization phase and crystallization ratio kept stable with BaO increment,while the crystallization ratio rose greatly with MgO promoting LiAlO_(2)precipitation at C/A of *** crystal types of all experimental slags were mainly Ca_(12)Al_(14)O_(33)and CaF_(2)at C/A of 1.3,and the precipitation of crystalline phase BaAl2O4 demonstrated a rising trend,while that of Ca_(12)Al_(14)O_(33)gradually declined with BaO augment.

关键词： Aluminate slag Structure MgO BaO Viscosity Property

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Effect of Hf and Zr Contents on Stress-rupture and Fatigue Crack Growth Rate Performances in FGH96PM Superalloy

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Journal of Iron and Steel Research International 2014年第3期21卷 382-388页

作者： Tian XIA Yi-wen ZHANG Yue chi High Temperature Materials Research Institute Central Iron and Steel Research Institute Beijing Key Laboratory of Advanced High Temperature Materials

Four experimental FGH96 alloys with various contents of Hf and Zr （0 and 0.04%, 0.3% and 0.04%, 0.6% and 0. 04%, 0. 3% and 0.06%, respectively） were produced using PREP （plasma rotating electrode process）＋ HIP （hot isostatic pressing） route. The unnotched and notched stress-rupture properties and fatigue crack growth rate （FCGR） of all the experimental alloys were investigated to study the effect of Hf and Zr. Relevant fracture morphol ogy and microstructure were observed by scanning electron microscopy and transmission electron microscopy. The results revealed that appropriate content of Hf could lengthen stress-rupture life, eliminate notch sensitivity and slo wer FCGR. Microstructure analysis showed that the amount of ＂f phase should be increased or decreased by adjusting Hf and Zr contents, and MC carbide and oxide coupled growth should be increased by adding Hf content, which caused oxycarbide to precipitate along grain boundary and strengthen the alloy. It was found that excessive Zr in Hf- containing FGH96 alloy had certain deleterious effects on stress-rupture property because there was strong Zr segre- gation at prior particle boundary, leaving a long chain of large-size oxides along the boundary. The optimal content of Hf and Zr in FGH96 alloy was 0.6% and 0. 04%, respectively.

关键词： PM superalloy FGH96 HI Zr stress rupture carbide oxide

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