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炼钢领域新思维在jVSL的体现

炼钢领域新思维在JVSL的体现

中国金属学会2003中国钢铁年会

作者： j.K.Tandon j.p.n.lal p.Sasindran VVS.Raju IAK prakash jindal Vijayanagar Steels Limited ToranagalluKarnatakaINDIA jindal Vijayanagar Steels Limited ToranagalluKarnatakaINDIA jindal Vijayanagar Steels Limited ToranagalluKarnatakaINDIA jindal Vijayanagar Steels Limited ToranagalluKarnatakaINDIA jindal Vijayanagar Steels Limited ToranagalluKarnatakaINDIA

jindal Vijayanagar（jVSL）钢铁有限公司是一个采用Corex技术,年生产能力为160万t的钢铁联合企业。jVSL邻近高品质铁矿,具有良好的后勤保障体系,为了提高公司的整体运行水平采用了许多非常规手段。通过采用一些大刀阔斧的改革,jVSL公...

jindal Vijayanagar（jVSL）钢铁有限公司是一个采用Corex技术,年生产能力为160万t的钢铁联合企业。jVSL邻近高品质铁矿,具有良好的后勤保障体系,为了提高公司的整体运行水平采用了许多非常规手段。通过采用一些大刀阔斧的改革,jVSL公司在短短的4年间跃升到印度钢铁工业中令人羡慕的位置。炼钢厂拥有2座转炉和2台连铸机,年生产160万t钢,不久的将来年生产能力将达到250万t。全世界范围的废钢短缺迫使jVSL公司寻找可替代废钢的冷料,并在短期内完善了直接还原铁（DRI）在转炉炼钢中的应用技术。耐火材料供应商娴熟的管理能力与jVSL公司炼钢生产的密切配合创造了许多耐材管理领域的奇迹。jVSL开始了一个雄心勃勃的计划——提高转炉炉龄到5000炉次。目前jVSL公司转炉的金属收得率为90%,连铸生产的收得率为98.45%。公司内部的技术革新一直是公司不断进步的推动力。技术革新包括采用自动化操作,开发中间包升降自动调整,结晶器热成像技术等。随着对炼钢和铸造生产各方面最佳操作的持续探索,公司开发了质量预测保障计划,在铸造生产中任何引起不稳定生产的异常行为都将被检测并提请立即进行观察。为了与时俱进,jVSL在废料控制和利用方面采取了一系列措施。通过对转炉生产和连铸生产废料的利用,jVSL公司的废料利用率超过80%。

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jVSL球团厂的最佳操作实践

JVSL球团厂的最佳操作实践

中国金属学会2003中国钢铁年会

作者： j.K.Tandon j.p.n.lal L.D.Saralaya Gururaj prasad 高斌

jVSL是一个年产160万t的联合炼钢厂,其炼铁系统装备有高标准的COREX技术。jVSL球团厂是世界上惟一一家使用低发热值燃料——Corex煤气生产优质球团用于内需和出口。当地可利用的铁矿石基本属于高脉石含量的铁矿。用这种矿石生产球团是... 详细信息

jVSL是一个年产160万t的联合炼钢厂,其炼铁系统装备有高标准的COREX技术。jVSL球团厂是世界上惟一一家使用低发热值燃料——Corex煤气生产优质球团用于内需和出口。当地可利用的铁矿石基本属于高脉石含量的铁矿。用这种矿石生产球团是一个艰巨的任务。在jVSL,我们运用最佳操作,已经掌握了利用高脉石含量的铁矿生产优质球团的技术。

关键词：废物利用修正 Corex 操作实践高铝矿优化过程参数

采用板坯热装热送生产工艺提高生产率及节约能源

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采用板坯热装热送生产工艺提高生产率及节约能源

中国金属学会2003中国钢铁年会

作者： j.K.Tandon j.p.n.lal A.K.Aggarwal p.Sasindran D.K Tripathi 魏军 jindal Vijay nagar Steel Limited INDIA

jVSL厂安装了热装热送生产线,以满足产品质量的不断提高、价格竞争的日趋激烈及按需供货的需求。2002年6月,自从该生产线在印度的,jindal nagar钢铁有限公司投入使用后,提高了生产率,降低了能源消耗。jVSL炼钢厂有两台连铸机,热轧带钢... 详细信息

jVSL厂安装了热装热送生产线,以满足产品质量的不断提高、价格竞争的日趋激烈及按需供货的需求。2002年6月,自从该生产线在印度的,jindal nagar钢铁有限公司投入使用后,提高了生产率,降低了能源消耗。jVSL炼钢厂有两台连铸机,热轧带钢厂有一座250t/h加热炉,一条长为80mtr辊道,两个可旋转90°的滚动辊道将连铸机生产的板坯运送到热装辊道。把板坯提升到热轧厂加热炉辊道和一个提升装置已经安装完毕。所有的设备运行良好,这篇文章介绍了设备的安装和优点。

关键词： hot charging slab turn table hot box elevator and hot charging table

Carbon farming by recarbonization of agroecosystems

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pedosphere 2023年第5期33卷 676-679页

作者： Rattan lal CFAES Rattan lal Center for Carbon Management and Sequestration The Ohio State UniversityColumbus OH 43210USA

Carbon(C)farming refers to deliberate adoption of restorative land use and site-specific best management practices which create a positive soil/ecosystem C budget and lead to sequestration of atmospheric carbon dioxide(CO_(2))in soil and biomass such that increase in soil/terrestrial C stock can generate another income stream for land ***-based C sequestration can be in biomass(above-and belowground)and increase in soil C *** latter comprises of soil inorganic C(SIC)and soil organic C(SOC)*** of C as SIC pool is through formation of secondary carbonates and leaching of bicarbonates with irrigation water.

关键词： soil income budget

Treating amyotrophic lateral sclerosis with allogeneic Schwann cell-derived exosomal vesicles: a case report

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neural Regeneration Research 2025年第4期20卷 1207-1216页

作者： pascal j.Goldschmidt-Clermont Aisha Khan George jimsheleishvili patricia Graham Adriana Brooks Risset Silvera Alexander j.p.Goldschmidt Damien D.pearse W.Dalton Dietrich Allan D.Levi james D.Guest Miller School of Medicine University of MiamiMiamiFLUSA Stem Cell Institute Miller School of MedicineUniversity of MiamiMiamiFLUSA The Miami project to Cure paralysis Miller School of MedicineUniversity of MiamiMiamiFLUSA Alzady International LLC MiamiFLUSA neurological Surgery Miller School of MedicineUniversity of MiamiMiamiFLUSA

Schwann cells are essential for the maintenance and function of motor neurons,axonal networks,and the neuromuscular *** amyotrophic lateral sclerosis,where motor neuron function is progressively lost,Schwann cell function may also be ***,important signaling and potential trophic activities of Schwann cell-derived exosomal vesicles have been *** case report describes the treatment of a patient with advanced amyotrophic lateral sclerosis using serial intravenous infusions of allogeneic Schwann cell-derived exosomal vesicles,marking,to our knowledge,the first instance of such *** 81-year-old male patient presented with a 1.5-year history of rapidly progressive amyotrophic lateral *** initial diagnosis,the patient underwent a combination of generic riluzole,sodium phenylbutyrate for the treatment of amyotrophic lateral sclerosis,and *** patient volunteered to participate in an FDA-approved single-patient expanded access treatment and received weekly intravenous infusions of allogeneic Schwann cell-derived exosomal vesicles to potentially restore impaired Schwann cell and motor neuron *** confirmed that cultured Schwann cells obtained from the amyotrophic lateral sclerosis patient via sural nerve biopsy appeared impaired(senescent)and that exposure of the patient’s Schwann cells to allogeneic Schwann cell-derived exosomal vesicles,cultured expanded from a cadaver donor improved their growth capacity in *** a period of observation lasting 10 weeks,during which amyotrophic lateral sclerosis Functional Rating Scale-Revised and pulmonary function were regularly monitored,the patient received weekly consecutive infusions of 1.54×1012(×2),and then consecutive infusions of 7.5×1012(×6)allogeneic Schwann cell-derived exosomal vesicles diluted in 40 mL of Dulbecco’s phosphate-buffered *** of the infusions were associated with adverse events such as infusion reactions(allergic or otherwise)or

关键词： allogeneic amyotrophic lateral sclerosis exosomes infusion neuromuscular junction Schwann cell

Soaking Induced Changes in Chemical Composition, Glycemic Index and Starch Characteristics of Basmati Rice

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Rice science 2015年第5期22卷 227-236页

作者： S.j.KALE S.K.jHA G.K.jHA j.p.SInHA S.B.lal Division of Food Science and post Harvest Technology Indian Agricultural Research Institute Division of Agricultural Economics Indian Agricultural Research Institute Division of Agricultural Engineering Indian Agricultural Research Institute Division of Computer Applications Indian Agricultural Research Institute

An attempt was made to determine the qualitative changes in basmati rice （pusa Basmati 1121, pBl121） during soaking at 40 ℃ to 80 ℃. Soaking temperature had significant effect （a = 0.01） on chemical composition, glycemic index and starch characteristics of rice. Starch content, apparent amylose content, crude protein content and crude fat content in un-soaked rice were found to be 73.24%, 27.26%, 8.79% and 2.56%, respectively, but differences in these traits were observed after soaking. Amylose to amylopectin ratio （Am/Ap） decreased from 0.59 to 0.52 （soaked at 80 ℃）. Crude fibre and crude ash contents increased after soaking. The mineral composition （K, p, S, Ca, Mg, Mn, Fe, Cu and Zn） in soaked rice was found to be 16.46% higher than un-soaked rice at the same degree of polishing. Glycemic index of un-soaked rice was found to be 58.41, but decreased to 54.31 after soaking at 80 ℃. pasting properties, scanning electron microscope images, and X-ray diffractograms suggested partial gelatinization of starch in the temperature range of 60 ℃ to 80 ℃. Based on qualitative changes in rice （apparent amylose content, Am/Ap ratio and crystallinity rate）, it was concluded that intermediate soakincl temperatures （60 ℃ to 70 ℃） would be useful for soaking of pB1121.

关键词： basmati rice soaking glycemic index starch characteristic temperature chemicalcomposition crystallinity

neurobehavioral Biomarkers of Aging: Influence of Genotype and Dietary Restriction

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Biomedical and Environmental Sciences 1991年第1期4卷 144-165页

作者： MICHAEL j.FORSTER HARBAnS lal Department of pharmacology Texas College of Osteopathic Medicine 3500 Camp Bowie Boulevard Fort Worth Texas 76107Department of Pharmacology Texas College of Osteopathic Medicine 3500 Camp Bowie Boulevard Fort Worth Texas 76107 University of North Texas Denton Texas 76203University of North Texas Denton Texas 76203

Because of the importance of central nervous system (CnS) functions to productive capacity and quality of life, biomarkers of these functions will play a key role in evaluating the success of interventions targeting aging processes. The CnS biomarkers may also be useful for predicting aging in other systems and in the organism as a whole. Age-related behavioral changes, the products of CnS aging, have content and predictive validity with respect to human functional capacities and may, therefore, represent important 'neurobehavioral' markers of functional aging. This article presents a discussion of some behavioral paradigms which are currently being considered as neurobehavioral biomarkers of aging in mice and the experimental approaches being employed in the assessment of their validity. Studies conducted in the authors' laboratory using dietary restriction and genetic comparisons to evaluate the validity of neurobehavioral biomarkers have revealed several methodological concerns, and hypothetical and empirical examples of these pitfalls are described and discussed. In spite of those concerns, it is concluded that approaches to validity using genetic comparisons and dietary restriction can be successfully implemented and should ultimately lead to identification of valid and useful neurobehavioral biomarkers of aging.

关键词： neurobehavioral Biomarkers of Aging

Sustainable intensification of China's agroecosystems by conservation agriculture

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International Soil and Water Conservation Research 2018年第1期6卷 1-12页

作者： Rattan lal Carbon Management and Sequestration Center The Ohio State University Columbus OH 43210 USA

Agriculture in China started about 8000 BCE with cultivation of millet and rice. Thus, China's modern agriculture is rooted in a long evolutionary history of agricultural practices. China's population of 211 million in 1700 increased to 295 million in 1800, 400 million in 1900, 1266 million in 2000, and is 1409 million in 2017. Thus, China has to feed 18.5% of the world population on merely 7% of the world's arable land and with even scarcer water resources. Yet, between 1950 and 2017, the grain production in China increased at a faster rate than that of the population. Total grain production (million ton or Tg) was 113 in 1949, 305 in 1970, 462 in 2000, and 603 in 2015. The high agricultural productivity is attributed to high consumption of fertilizers (58.8 Tg in 2015), pesticides (1.81 Tg in 2014), and irrigation (65.7 Mha in 2014). However, the high production is also associated with the severe problems of soil degradation (erosion), water contamination and air pollution. It is estimated that ~40% of China's arable land is degraded to some degree. Thus, there is a strong need for a paradigm shift of sustaining high productivity while restoring quality of natural resources of soil, water and air. In this context, conversion to a systembased conservation agriculture (CA) may be an important strategy of sustainable intensification of agroecosystems for advancing and sustaining high production while restoring soil health, purifying water and air and improving the environment. The CA has been practiced in China since 1990s and was adopted on ~8.0 Mha in 2015. The available literature shows that conversion to CA increases soil organic C (SOC) concentration and stocks mostly in the surface layer while also producing an equivalent agronomic yield. Therefore, a widespread adoption of CA in China would necessitate a deeper understanding of its ecological underpinnings. To be effective, site-specific CA practices must reduce risks of soil erosion under dry land farming, ac

关键词： soil conservation food security water scarcity ancient agriculture environmental pollution

Densities, Ultrasonic Speeds, Viscosities and Refractive Indices of Binary Mixtures of Benzene with Benzyl Alcohol,Benzonitrile, Benzoyl Chloride and Chlorobenzene at 303.15 K

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Chinese journal of Chemistry 2005年第4期23卷 377-385页

作者： ALI,A. pAnDEY,j.D. SOnI,n.K. nAIn,A.K. lal,B. CHAnD,D. DepartmentofChemistry JamiaMilliaIslamia(CentralUniversity)NewDelhi110025India DepartmentofChemistry UniversityofAllahabadAllahabad211002U.P.India

Densities, ρ, ultrasonic speeds, u, viscosities, η , and refractive indices, n, of pure benzene, benzyl alcohol (BA), benzonitrile (Bn), benzoyl chloride (BC), chlorobenzene (CB) and their thirty six binary mixtures, with benzene as common component, were measured at 303.15 K over the entire mole fraction range. From these experimental data the values of deviations in ultrasonic speed, Δu, isentropic compressibility, Δks, excess acoustic impedance, ZE, deviation in viscosity, Δη, and excess Gibbs free energy of activation of viscous flow, G*E, and partial molar isentropic compressibility, of BA, Bn, BC and CB in benzene were computed. The variation of these derived functions with composition of the mixtures suggested the increased cohesion (molecular order) in the solution and that interaction (A-B)>(A-A) or (B-B). Moreover, theoretical prediction of ultrasonic speed, viscosity and refractive index of all the four binary mixtures was made on the basis of empirical and semi-empirical relations by using the experimental values of the pure components. Comparison of theoretical results with the experimental values was made in order to assess the suitability of these relations in reproducing the experimental values of u, η and n. Also, molecular radii of pure liquids and the average molecular radii of binary mixtures were evaluated using the corresponding refractive indices of pure liquids and binary mixtures. The average molecular radii of binary mixtures were found to be additive with respect to mole fraction of the pure component.

关键词： binary mixture excess function density ultrasonic speed viscosity refractive index