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Hot forging of Mg-4Al-2Ba-2Ca(ABa X422) alloy and validation of processing map

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Transactions of Nonferrous Metals Society of China 2018年第8期28卷 1495-1503页

作者： k.SURESH k.p.rao Y.V.R.k.pRASAD N.HORT H.DIERINGA Department of mechanical and Biomedical Engineering City Uiliversity of Hong Kong Tat Chee Avenue Kowloon Hoilg Koilg China *** No. 2/B vinayaka Nagar Hebbal Bengalum 560024 India Helmholtz-zentrum Geesthacht institute of Materials ResearchMagnesium innovation Centre Max-Planck-StraBe 1 Geesthacht 21502 Germany

A cup-shaped component of Mg-4 Al-2 Ba-2 Ca（ABa X422） alloy was forged in the temperature range of 300-500 °C and at speeds in the range of 0.01-10 mm/s with a view to validate the processing map and study the microstructural development. The process was simulated through finite-element method to estimate the local and average strain rate ranges in the forging envelope. The processing map exhibited two domains in the following ranges：（1） 300-390 °C and 0.0003-0.001 s^-1, and（2） 400-500 °C and 0.0003-0.3 s^-1 and both represented dynamic recrystallization（DRX）. The map revealed a wide flow instability regime at higher strain rates and temperatures lower than 400 °C, in which flow localization occurred. Forgings produced under conditions of the above two domains were sound and symmetrical, and had finer grain sizes when being forged in the first domain. However, when being forged in the flow instability regimes, the alloy fractured before the final shape was reached. The experimental load-stroke curves for the conditions within the domains correlated well with the simulated ones, whereas the curves obtained in the instability regime were uneven.

关键词： magnesium alloy, processing map hot forging dynamic recrystallization

在印度的kOTTApATNAM,NELLOE地区ANDHRA pRADESH发现了中国古硬币

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西安金融 2004年第5期 59-60页

作者： k.p.rao Joe Cribb 荣艺华人民银行西安分行营业管理部邮编:710002

在印度发现中国的古硬币正在广为人知.在一些地方的发现已被记录和分析.在印度的这些发现是中国古硬币出口的较大规模的一部分.从所有的环印度洋周边地区和南中国海的国家,从肯尼亚和坦桑尼亚到阿曼、沙特阿拉伯和伊朗,从斯里兰卡和印... 详细信息

在印度发现中国的古硬币正在广为人知.在一些地方的发现已被记录和分析.在印度的这些发现是中国古硬币出口的较大规模的一部分.从所有的环印度洋周边地区和南中国海的国家,从肯尼亚和坦桑尼亚到阿曼、沙特阿拉伯和伊朗,从斯里兰卡和印度到印度尼西亚、马来西亚和泰国,中国的古硬币都有出土发现的记录.在中国的近邻越南、日本、朝鲜和中国与俄罗斯的塔克斯坦也发现了它们.

关键词：印度出口贸易硬币 kottapatnam

passive activity enhances residual control ability in patients with complete spinal cord injury

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Neural Regeneration Research 2025年第8期20卷 2337-2347页

作者： Yanqing Xiao Mingming Gao Zejia He Jia Zheng Hongming Bai Jia-Sheng rao Guiyun Song Wei Song Xiaoguang Li Beijing key Laboratory for Biomaterials and Neural Regeneration Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Biological Science and Medical EngineeringBeihang UniversityBeijingChina Department of Rehabilitation Evaluation China Rehabilitation Research CenterBeijingChina Cardiac Center Beijing Children’s HospitalCapital Medical UniversityBeijingChina The State key Laboratory of Virtual Reality Technology and Systems Beihang UniversityBeijingChina Department of Rehabilitation Engineering China Rehabilitation Science InstituteBeijingChina

patients with complete spinal cord injury retain the potential for volitional muscle activity in muscles located below the spinal injury ***,because of prolonged inactivity,initial attempts to activate these muscles may not effectively engage any of the remaining neurons in the descending pathway.A previous study unexpectedly found that a brief clinical round of passive activity significantly increased volitional muscle activation,as measured by surface *** this study,we further explored the effect of passive activity on surface electromyographic signals during volitional control tasks among individuals with complete spinal cord *** patients with chronic complete thoracic spinal cord injury were *** electromyography data from eight major leg muscles were acquired and compared before and after the passive activity *** results indicated that the passive activity led to an increased number of activated volitional muscles and an increased frequency of *** the cumulative root mean square of surface electromyography amplitude for volitional control of movement showed a slight increase after passive activity,the difference was not statistically *** findings suggest that brief passive activity may enhance the ability to initiate volitional muscle activity during surface electromyography tasks and underscore the potential of passive activity for improving residual motor control among patients with motor complete spinal cord injury.

关键词： complete spinal cord injury cycle training epidural electrical stimulation motor training passive activity physiological state spinal cord circuit surface electromyography volitional control task

Implications for the lithospheric structure of Cambay rift zone,western India:Inferences from a magnetotelluric study

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Geoscience Frontiers 2020年第5期11卷 1743-1754页

作者： Nagarjuna Danda C.k.rao Amit kumar p.Rama rao p.B.V.Subba rao Dr.k.S.krishnan Geomagnetic Research Laboratory IIGAllahabad221505India Indian Institute of Geomagnetism New PanvelNavi Mumbai410218India Department of Geophysics Andhra UniversityVisakhapatnam530003India

Broad-band and long-period magnetotelluric(MT)data were acquired along an east-west trending traverse of nearly 200 km across the kachchh,Cambay rift basins,and Aravalli-Delhi fold belt(ADFB),western *** regional strike analysis of MT data indicated an approximate N59°E geoelectric strike direction under the traverse and it is in fair agreement with the predominant geological strike in the study *** decomposed transverse electric(TE)-and transverse magnetic(TM)-data modes were inverted using a nonlinear conjugate gradient algorithm to image the electrical lithospheric structure across the Cambay rift basin and its surrounding *** studies show a thick(~1-5 km)layer of conductive Tertiary-Mesozoic sediments beneath the kachchh and Cambay rift *** resistive blocks indicate presence of basic/ultrabasic volcanic intrusives,depleted mantle lithosphere,and different precambrian structural *** crustal conductor delineated within the ADFB indicates the presence of fluids within the fault zones,sulfide mineralization within polyphase metamorphic rocks,and/or Aravalli-Delhi sediments/*** observed conductive anomalies beneath the Cambay rift basin indicate the presence of basaltic underplating,volatile(CO2,H2 O)enriched melts and channelization of melt fractions/fluids into crustal depths that occurred due to plume-lithosphere *** variations in electrical resistivity observed across the profile indicate that the impact of Reunion plume on lithospheric structures of the Cambay rift basin is more dominant at western continental margin of India(WCMI)and thus support the hypothesis proposed by Campbell&Griffiths about the plume-lithosphere interactions.

关键词： Cambay rift Deccan basalts Magnetotellurics partial melt Reunion plume

Crimean-Congo hemorrhagic fever:pathogenesis,transmission and public health challenges

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World Journal of Virology 2025年第1期14卷 63-72页

作者： Sita kumari karanam kandra Nagvishnu praveen kumar Uppala Sandhya Edhi Srinivasa rao Varri Department of pharmaceutical Biotechnology Maharajah’s College of PharmacyVizianagaram 535002Andhra PradeshIndia Department of pharmacology Santhiram Medical College and General HospitalNandyal 518501Andhra PradeshIndia Department of pharmacology Santhiram Medical College and General HospitalNandyal 518501Andhra PradeshIndia Department of Pharmaceutical AnalysisMaharajah's College of PharmacyVizianagaram 535002Andhra PradeshIndia

The dangerous Crimean-Congo hemorrhagic fever virus(CCHFV),an encapsulated negative-sense RNA virus of the family Nairoviridae,is transmitted from person to person via *** a case fatality rate between 10%to 40%,the most common ways that the disease may spread to humans are via tick bites or coming into touch with infected animals'blood or ***,the transfer of bodily fluids between individuals is another potential route of *** is a wide range of symptoms experienced by patients throughout each stage,from myalgia and fever to extreme bruising and excess *** management measures include minimising the spread of ticks from one species to another and from people to animals via the use of protective clothing,repellents,and proper animal *** order to prevent the spread of illness,healthcare workers must adhere to stringent *** the lack of an authorised vaccine,the main components of treatment now consist of preventative measures and supportive care,which may include the antiviral medicine *** still don't know very much about the virus's mechanisms,even though advances in molecular virology and animal models have improved our understanding of the pathogenesis of CCHFV.A critical need for vaccination that is both safe and effective,as well as for quick diagnosis and efficient treatments to lessen the disease's impact in areas where it is most *** steps towards lowering Crimean-Congo hemorrhagic fever mortality and morbidity rates were to anticipatethe future availability of immunoglobulin products.

关键词： Crimean-congo haemorrhagic fever Tick-borne illness Immunoglobulins Viral hemorrhagic fever Antiviral therapy

Infiltration by monocytes of the central nervous system and its role in multiple sclerosis: reflections on therapeutic strategies

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Neural Regeneration Research 2025年第3期20卷 779-793页

作者： Guangyong Zhang Qing Yao Chubing Long pengcheng Yi Jiali Song Luojia Wu Wei Wan Xiuqin rao Yue Lin Gen Wei Jun Ying Fuzhou Hua Department of Anesthesiology the Second Affiliated Hospital of Nanchang UniversityNanchangJiangxi ProvinceChina key Laboratory of Anesthesiology of Jiangxi province NanchangJiangxi ProvinceChina

Mononuclear macrophage infiltration in the central nervous system is a prominent feature of neuroinflammation. Recent studies on the pathogenesis and progression of multiple sclerosis have highlighted the multiple roles of mononuclear macrophages in the neuroinflammatory process. Monocytes play a significant role in neuroinflammation, and managing neuroinflammation by manipulating peripheral monocytes stands out as an effective strategy for the treatment of multiple sclerosis, leading to improved patient outcomes. This review outlines the steps involved in the entry of myeloid monocytes into the central nervous system that are targets for effective intervention: the activation of bone marrow hematopoiesis, migration of monocytes in the blood, and penetration of the blood–brain barrier by monocytes. Finally, we summarize the different monocyte subpopulations and their effects on the central nervous system based on phenotypic differences. As activated microglia resemble monocyte-derived macrophages, it is important to accurately identify the role of monocyte-derived macrophages in disease. Depending on the roles played by monocyte-derived macrophages at different stages of the disease, several of these processes can be interrupted to limit neuroinflammation and improve patient prognosis. Here, we discuss possible strategies to target monocytes in neurological diseases, focusing on three key aspects of monocyte infiltration into the central nervous system, to provide new ideas for the treatment of neurodegenerative diseases.

关键词： blood–brain barrier macrophages monocytes multiple sclerosis neuroinflammation review therapy

Leptosririllumferrooxidans-sulfide mineral interactions with reference to bioflotation nad bioflocculation

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中国有色金属学会会刊：英文版 2008年第6期18卷 1403-1409页

作者： A. VILINSkA k. HANUMANTHA rao Division of Mineral processing Lulea University of Technology SE-971 87 LULEA Sweden

铁的离子的粘附黄铁矿和黄铜矿矿物质上的成年 Leptospirillum ferrooxidans 房间通过吸附，希腊语的第六个字母潜力和弥漫的反射英尺红外被调查大小。当絮凝行为被 Turbiscan 大小检验时，矿物质 floatability 上的细菌的种类的影响被 ... 详细信息

铁的离子的粘附黄铁矿和黄铜矿矿物质上的成年 Leptospirillum ferrooxidans 房间通过吸附，希腊语的第六个字母潜力和弥漫的反射英尺红外被调查大小。当絮凝行为被 Turbiscan 大小检验时，矿物质 floatability 上的细菌的种类的影响被 Hallimond 筹款测试决定。矿物质等电位的点(pH 6.5 ? 7.5 ) 在和细菌的房间的相互作用向房间转移了等电位的点以后(pH 3.3 ) ，在矿物质上显示房间吸附的化学性质出现。与细菌的房间对待的矿物质的英尺红外系列显示出所有房间的存在功能的组意味着房间吸附。黄铜矿上的细菌的房间吸附与黄铁矿相比是更高的，它同意了房间与黄铁矿比较的黄铜矿筹款和显著絮凝行为上的更大的萧条效果。

关键词：细菌硫矿絮凝浮选

Effect of bisphenol A and co-administration of bisphenol Aand vitamin C on epididymis of adult rats:A histological and biochemical study

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Asian Journal of Andrology 2003年第3期5卷 203-208页

作者： k.C.Chitra k.Ramachandra rao p.p.Mathur School of Life Sciences Pondicherry University Pondicherry 605 014 IndiaDepartment of Anatomy Jawaharlal Institute of Postgraduate Medical Education and Research Pondicherry 605 006 IndiaSchool of Life Sciences Pondicherry University Pondicherry 605014 India

Aim: To study the effect of bisphenol A on the epididymis and epididymal sperm of rats and the possible amelioration action of co-administration with vitamin C. Methods: Male Wistar rats were orally administered bisphenol A (0.2 μg·kg-1·day-1, 2 μg·kg-1·day-1 and 20 μg·kg-1·day-1) and 0.2 μg, 2μg and 20 μg bisphenol A + 40 mg vitamin C·kg-1·day-1 for 60 days. On day 61, rats were killed with anesthetic ether and sperm collected from epididymis were used for assessment of sperm count, motility and viability and biochemical studies. A 1 % homogenate of epididymis was prepared and used for biochemical estimations. Caput, corpus and cauda epididymis were fixed in Bouin's fixative for histological studies. Results: Administration of bisphenol A caused a reduction in the epididymal sperm motility and count and the sperm viability remained unchanged. The activities of superoxide dismutase and glu-tathione peroxidase decreased, while the levels of lipid peroxidation increased in epididymal sperm and epididymis at all doses. Co-administration with vitamin C reversed the effect of bisphenol A-induced oxidative stress in epididymal sperm and epididymis. A complete degeneration of epididymal epithelium in caput, corpus and cauda regions with reduction in the number of sperms were observed at all doses of bisphenol A-treated rats. Conclusion: Bisphenol A induced oxidative stress in epididymis and caused degeneration of the epididymal epithelium of rats. Co-administration with vitamin C had a protective effect against the bisphenol A-induced toxicity in epididymal sperm and epididymis.

关键词： bisphenol A epididymis spermatozoa ascorbic acid antioxidant enzymes lipid peroxidation reactive oxygen species oxidative stress

An ecofriendly approach for corrosion control of 6061 Al-15%(v)SiC(p)composite and its base alloy

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Chinese Journal of Chemical Engineering 2017年第3期25卷 363-372页

作者： Charitha B.p. padmalatha rao Department of chemistry Manipal Institute of TechnologyManipalUdupiKamatakaIndia

Corrosion inhibition characteristics of bio polymer dextran was studied for the corrosion control of 6061 Al-15%_((v)) SiC_((p)) composite and its base alloy in 1 mol·L^(-1) HCl. Standard electrochemical techniques such as potentiodynamic polarization(pDp) measurements and electrochemical impedance spectroscopy(EIS) method were adopted for corrosion rate measurement. Surface morphology was studied by scanning electron microscopy(SEM) and elemental mapping was done by energy dispersive X-ray(EDX) analysis. Suitable mechanism was proposed for corrosion and inhibition process. Results indicated that dextran acts as an excellent anticorrosive agent for the corrosion control of 6061 Al-15%_((v)) SiC_((p)) composite, with maximum inhibition efficiency of 91% for the concentration of 0.4 g·L^(-1) at 303 k. Dextran acted as a mixed type of inhibitor, and got physically adsorbed both on composite and base alloy by obeying Langmuir adsorption isotherm. Dextran is proved to be a green inhibitor with environmental and economic benefits.

关键词： 6061 Al-15%(v) SiC(p) composite Green inhibitor Biopolymer Electrochemical studies SEM–EDX