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钢铁企业降低信息化系统实施和维护费用的思考

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冶金管理 2011年第11期 47-49页

作者：顾泠竹 mr.j.rg hackmann 德国East Wind公司德国PSI Metals公司

从2001年开始，中国钢铁企业进入第一拨信息化建设的热潮，企业关注的的是ERP和MES软件供应商的资质、实施的步骤和不同系统之间的功能划分。经过10年的不懈尝试和努力．中国前30大钢铁企业或多或少都开始运用信息系统来管理企业的运作... 详细信息

从2001年开始，中国钢铁企业进入第一拨信息化建设的热潮，企业关注的的是ERP和MES软件供应商的资质、实施的步骤和不同系统之间的功能划分。经过10年的不懈尝试和努力．中国前30大钢铁企业或多或少都开始运用信息系统来管理企业的运作和组织工厂的生产。现在中国钢铁企业面临更深层面的问题：比如，如何通过计划系统协调计划，如何通过系统提高产成品质量。同时，高昂的系统扩展和维护费用也令处于市场低迷期的钢铁企业颇有捉襟见肘之感。

关键词：信息化系统钢铁企业维护费用 2001年信息化建设软件供应商管理企业信息系统

Insm1:orchestrating cellular mimicry in the thymus medulla

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Cellular & Molecular Immunology 2024年第4期21卷 414-416页

作者： K.D.james j.E.Cowan UCL Institute of Immunity and Transplantation The Pears BuildingRowland Hill StreetLondonNW32PPUK

The thymus is the primary production site for a functional and self-tolerant T-cell *** establishment of immune tolerance is mediated by the generation and presentation of tissue-restricted self-antigens(TRAs)by medullary thymic epithelial cells(mTECs),which screen T-cell receptors for self-reactivity to eliminate autoreactive T *** studies have extended our understanding of mTEC heterogeneity by examining the mechanisms by which mTECs mimic the peripheral self[1].

关键词： medullary eliminate restricted

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钢铁生产中质量问题的追溯

冶金管理 2012年第4期 57-60页

作者： mr.j.rg hackmann Dr.Harald Peters 顾泠竹德国PSIMetals公司德国East Wind公司

毫无疑问，钢铁企业想进入高端板材市场，质量是最重要的一块敲门砖。质量意味着：生产管理过程中管理质量：出现质量问题时最终源头追踪：基于质量分析闭环式的工序相关质量操作或参数调整，以达到最终产品质量的持续提升。质量管理，... 详细信息

毫无疑问，钢铁企业想进入高端板材市场，质量是最重要的一块敲门砖。质量意味着：生产管理过程中管理质量：出现质量问题时最终源头追踪：基于质量分析闭环式的工序相关质量操作或参数调整，以达到最终产品质量的持续提升。质量管理，其中包括质量问题源头追溯，已经越来越为钢铁企业所重视。特别是那些想打人高端市场、提供高附加值产品的企业。

关键词：质量问题钢铁生产钢铁企业生产管理过程高附加值产品板材市场参数调整质量分析

Multinuclear mr.and mr. study of lithium-ion cells using a variable field magnet and a fixed frequency RF probe

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Magnetic Resonance Letters 2024年第1期4卷 10-20页

作者： Andrés Ramírez Aguilera Florin Marica Kevin j.Sanders Md Al Raihan C.Adam Dyker Gillian R.Goward Bruce *** UNB mr. Centre Department of PhysicsUniversity of New BrunswickFrederictonNew BrunswickE3B 5A3Canada Department of Chemistry McMaster UniversityHamiltonOntarioL8S 4L8Canada Department of Chemistry University of New BrunswickFrederictonNew BrunswickE3B 5A3Canada

An exploratory multinuclear magnetic resonance(mr.and magnetic resonance imaging(mr.)study was performed on lithium-ion battery cells with ^(7)Li,^(19)F,and ^(1)H measurements.A variable field superconducting magnet with a fixed frequency parallel-plate radiofrequency(RF)probe was employed in the *** magnetic field was changed to set the resonance frequency of each nucleus to the fixed RF probe frequency of 33.7 *** cartridge-like lithium-ion cells,with graphite anodes and LiNi_(0.5)Mn_(0.3)Co_(0.2)O_(2)(NMC)cathodes,were *** cell was pristine,and one was charged to a cell voltage of 4.2 *** results presented demonstrate the great potential of the variable field magnet approach in multinuclear measurement of lithium-ion *** methods open the door for developing faster and simpler methods for detecting,quantifying,and interpreting mr.and mr. data from lithium-ion and other batteries.

关键词： Multinuclear mr.mr. Variable field magnet Lithium-ion battery Parallel-plate rf probe

Nitrate reductase activity in high-mountain plants:a test across species,growth form and habitat type

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journal of Plant Ecology 2019年第3期12卷 519-530页

作者： Adam Rajsz Bronisław Wojtuń Lucyna mr.z Ludwik Żołnierz Alexander j.Kempers Department of Ecology Biogeochemistry and Environmental ProtectionWrocław Universityul.Kanonia 6/850-328 WrocławPoland Department of Botany and Plant Ecology University of Environmental and Life Sciences.Pl.Grunwaldzki 24a50-363 WrocławPoland Radboud University Nijmegen Institute for Water and Wetland ResearchDepartment of Environmental ScienceHeyendaalseweg 1356525 AJ NijmegenThe Netherlands

Aims For many terrestrial plants,nitrate is the most important form of available soil nitrogen for ***,many plant species,which grow on acidic,ammonium-dominated soils,exhibit a con-stantly low level of nitrate reductase activity(NRA).Little is known about NRA in high-mountain vascular plants in similar *** tested the hypothesis that high-mountain vascular plants in acidic and ammonium-dominated habitats have low levels of *** Twenty-six plant species of the families Asteraceae,Ericaceae,Poaceae,Polygonaceae,Salicaceae,Pinaceae,Ranunculaceae,Woodsiaceae,Cyperaceae,juncaceae,Rosaceae and Urticaceae representing different growth forms were investigated in seven native and anthropogenic habitats of subalpine and alpine belts of the Karkonosze(Hercynian middle-mountains,Central Europe),with respect to leaf NRA and mineral nitrogen forms in *** was measured by an in vivo assay for the first time directly in the field using portable water *** Findings An NRA study of vascular plants from high mountains is presented for the first time,and most of the studied subalpine and alpine species were subjected to field measurements for the first time *** among species,families,growth forms and habitats for NRA were *** differences reflected mainly the taxonomical position and in part ecological *** analysis confirmed that variance component showed that enzyme activities were mostly explained by plant species and ***,the subalpine and alpine species from their native habitats are characterized by very low and low ability for nitrate *** also compared NRA with Ellenberg’s N val-ues for the studied *** a regression equation,N values of some species were calculated for the first time and corrected for the others.

关键词： nitrate reductase subalpine and alpine habitats Ellenberg's N values the Karkonosze Hercynian middle-mountains

Strategy of preparing SmCo based films with high coercivity and remanence ratio achieved by temperature and chemical optimization

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journal of Rare Earths 2024年第7期42卷 1289-1297,I0004页

作者： Yansong Gong Zhaoguo Qiu Sizhe Liang Xinrui Zheng Hongxia Meng Zhigang Zheng Deyang Chen Shengfu Yuan Weixing Xia Dechang Zeng j.P.Liu School of Materials Science and Engineering South China University of TechnologyGuangzhou510640China Zhongshan R&D Center for Materials Surface and Thin Films Technology of the South China University of Technology Gent Materials Surface Technology(Guangdong)Co.Ltd.Zhongshan528437China Institute for Advanced Materials South China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou510006China Yangjiang Branch Guangdong Laboratory Materials Science and Technology Yangjiang Advanced Alloys LaboratoryYangjiang529500China Laboratory of Rare-Earth Magnetic Functional Materials Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingbo315201China Department of Physics University of Texas at ArlingtonArlingtonTX76019USA

SmCo based films with excellent intrinsic magnetic properties have promising applications in micro-electro-mechanical system(MEMS).However,due to the complexity of phase composition and uncontrollable crystallization degree of SmCo hard magnetic phase in the film,both the coercivity(Hc)and remanence(mr.of films are difficult to enhance *** this paper,SmCo based films were deposited with a Cr underlayer and capping layer on single crystal Si substrates via magnetron sputtering *** effects of annealing parameters and Sm/Co atomic ratio on the phase structure and coercivity of films are *** adjusting the Sm/Co atomic ratio from 1:5 to 1:4,Co soft magnetic phase disappears and the single phase SmCo5 is obtained,leading to the increase of coercivity of the films from 30 to 34 *** influence of deposition temperature and Cu doping on magnetic properties of SmCo based films was *** the deposition temperature increases from room temperature to 250℃,the coercivity will further increase from 34 to 51 ***,a severe kink is observed in the demagnetization curves due to the poor exchanged *** analysis of transmission electron microscopy(TEM)confirms that the average size of non-hard magnetic amorphous phase exceeds the effective exchanged coupling length of SmCo5,which contributes to the decoupling and low remanence ***,doping Cu and applying a post-annealing process can significantly improve the crystallization degree of the *** the coercivity and the remanence ratio of the demagnetization curves are greatly *** propose a plausible strategy to prepare the SmCo based films with high coercivity and remanence ratio by temperature and chemical optimization,which can be utilized in high performed MEMS devices.

关键词： Rare earths SmCo based films Phase composition Crystallization conditions Coercivity Remanence ratio

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PSImetals一体化计划系统简介

冶金管理 2012年第1期 53-57页

作者：顾泠竹 mr. j.rg hackmann 德国East Wind公司德国PSIMetals公司

2011年11月的“冶金管理”杂志．PSI的专家载文指出经过10年信息化建设，中国钢铁企业现在面临新的挑战：挑战之一就是现有系统的不断延伸和功能完善。事实上，中国钢铁企业现在开始考虑一体化计划．据我们所知首钢现在在做一体化计划... 详细信息

2011年11月的“冶金管理”杂志．PSI的专家载文指出经过10年信息化建设，中国钢铁企业现在面临新的挑战：挑战之一就是现有系统的不断延伸和功能完善。事实上，中国钢铁企业现在开始考虑一体化计划．据我们所知首钢现在在做一体化计划系统．鞍钢也对一体化计划表达出了浓厚的兴趣．太钢也在考虑建立跨厂的计划系统，越来越多的已经实施了MES系统的钢铁企业正在考虑建立计划系统。

关键词：计划系统一体化简介钢铁企业信息化建设 MES系统功能完善 PSI

Transcutaneous perianal sonography:A sensitive method for the detection of perianal inflammatory lesions in Crohn's disease

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World journal of Gastroenterology 2004年第19期10卷 2859-2863页

作者： jochen Wedemeyer Timm Kirchhoff Gernot Sellge Oliver Bachmann joachim Lotz Michael Galanski Michael P.Manns Michael j.Gebel j.rg S.Bleck Department of Gastroenterology Hepatology and EndocrinologyMedical School of HannoverCarl Neuberg Str.130623 HannoverGermany M.D. Department of Diagnostic Radiology Medical School of HannoverCarl Neuberg Str.130623 HannoverGermany Department of Gastroenterology Hepatology and EndocrinologyMedical School of HannoverCarl Neuberg Str.130623 HannoverGermany

AIM:Pelvic magnetic resonance imaging(mr.)and endoanal ultrasound which are established imaging methods for perianal inflammatory lesions in patients with Crohn's disease require expensive specialized equipments and *** investigated the feasibility and sensitivity of transcutaneous perianal ultrasound(PAUS)using regular ultrasound probes in the imaging of perianal inflammatory *** sonographic findings were correlated to pelvic mr.-scans. METHODS:We performed PAUS in 25 patients with Crohn's disease and clinical signs of perianal inflammatory disease. Wibhin a median of 10 d(range 0-75)these patients underwent mr. of the *** convex and linear high resolution probes were used for *** sonographic findings were correlated to the mr. findings by blinded investigators. RESULTS:The sonographic investigations were well tolerated by all *** typically presented as hypoechoic ***-nine fistulae were detected in 22 *** were detected in 7 patients and presented as hypo-or anechoic ***-six of 29 fistulae and 6 of 7 abscesses could be confirmed by *** statistics showed an excellent agreement (kappa>0.83)between the two imaging methods. CONCLUSION:PAUS is a simple,painless,feasible,real- time method that can be performed without specific patient preparation which is comparable in its sensitivity to pelvic mr. in the detection of perianal fistulae and/or abscesses. PAUS can especially be recommended as a screening tool in acute perianal disorders such as perianal abscess and for follow-up studies of perianal inflammatory disease.

关键词： Anal Canal histology Anus Diseases Crohn Disease Humans Inflammation Ultrasonography, Doppler, Color

Effect of rolling friction on wall pressure,discharge velocity and outflow of granular material from a flat-bottomed bin

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Particuology 2012年第6期10卷 672-682页

作者： R.Baleviius I.Sielamowicz Z.mr.z R.Kaianauskas Department of Reinforced Concrete and Masonry Structures Vilnius Gediminas Technical Universityav.Sauletekio 11LT-10223 VilniusLithuania Composite Silo Systems ORCHIDEA st.J.Matejki 815-196 BialystokPoland Institute of Fundamental Technological Research Polish Academy of Sciencesst.Pawin'skiego 5b02-106 WarsawPoland Institute of Mechanics Vilnius Gediminas Technical Universityst.J.Basanaviiaus.28LT-10223 VilniusLithuania

The present paper provides both experimental and DEM analyses of the filling and discharge of pea grains from a 3D flat-bottomed bin. In the DEM model, the fixed mean values of the experimentally determined single particle data, such as the particle density, Young＇s modulus, Poisson＇s ratio as well as the sliding and rolling friction coefficients were incorporated to analyse their effects on the macroscale indicators, such as the wall pressure, discharge velocities and material outflow parameters. The effect of rolling friction was studied based on the experimentally measured single particle rolling friction coefficient. This analysis is aimed at the quantitative prediction of flow parameters as related to the identification of material parameters.

关键词： Visco-elastic granular materia Discrete element method Rolling friction Wall pressure Material velocityOutflow mass Outflow rateBiosystems Pea grains