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园艺与种苗 1990年第6期 49-50页

作者： S.P.Sharma j.shekhar 赵侠

印度的喜马偕尔邦的干燥温带是马铃薯种薯的主要生产区。在这一地区种植的作物生长期长达5个月。在陡坡上建成梯田,而作物的需水通过灌溉来满足。该处土壤粗糙,处于壤砂土和砂壤土之间。这类土壤易于侵蚀,导致所需营养的流失。由于氮损... 详细信息

印度的喜马偕尔邦的干燥温带是马铃薯种薯的主要生产区。在这一地区种植的作物生长期长达5个月。在陡坡上建成梯田,而作物的需水通过灌溉来满足。该处土壤粗糙,处于壤砂土和砂壤土之间。这类土壤易于侵蚀,导致所需营养的流失。由于氮损失较多,因此本研

关键词：马铃薯土豆茄属块茎地下茎产量

Apples to oranges:environmentally derived,dynamic regulation of serotonin neuron subpopulations in adulthood?

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Neural Regeneration Research 2025年第9期20卷 2596-2597页

作者： Christopher j.O’Connell Matthew j.Robson Department of Genetics College of MedicineHarvard UniversityBostonMAUSA james L.Winkle College of Pharmacy Division of Pharmaceutical SciencesUniversity of CincinnatiCincinnatiOHUSA Neuroscience Graduate Program College of MedicineUniversity of CincinnatiCincinnatiOHUSA

Traumatic brain injury(TBI)is a public health problem with an undue economic burden that impacts nearly every age,ethnic,and gender group across the globe(Capizzi et al.,2020).TBIs are often sustained during a dynamic range of exposures to energetic environmental forces and as such outcomes are typically heterogeneous regarding severity and pathology(Capizzi et al.,2020).

关键词： sustained orange dynamic

Gene therapy for spinal muscular atrophy:perspectives on the possibility of optimizing SMN1 delivery to correct all neurological and systemic perturbations

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Neural Regeneration Research 2025年第7期20卷 2011-2012页

作者： Sharon j.Brown Rafael j.Yáñez-Muñoz Heidi R.Fuller School of Pharmacy and Bioengineering Keele UniversityKeeleUK Wolfson Center for Inherited Neuromuscular Disease TORCH BuildingRJAH Orthopaedic HospitalOswestryUK *** Center of Gene and Cell TherapyDepartment of Biological SciencesSchool of Life Sciences and the EnvironmentRoyal Holloway University of LondonEghamUK

Spinal muscular atrophy(SMA)is a genetic condition that results in selective lower motor neuron loss with concomitant muscle weakness and *** genetic cause of SMA was understood in 1995 when loss or impairment of the survival motor neuron 1(SMN1)gene was identified as the main contributing factor(Lefebvre et al.,1995).This,in combination with the discovery that humans have a“back-up”gene,SMN2,which can produce low levels(approximately 10%)of the full-length functional SMN protein,has led to the generation of SMA-specific gene *** was traditionally classified according to age of symptom onset and developmental milestones achieved,with life expectancy and severity varying between ***,SMN2 copy number is used as a proxy for the prediction of disease severity,with higher SMN2 copy number typically being associated with reduced severity of SMA,although this relationship is not absolute:some individuals with low SMN2 copy number have less severe SMA phenotypes and vice ***,the etiology of SMA is further complicated by other factors,such as non-typical nucleotide variants and SMN2-independent modifiers of disease severity.

关键词： atrophy traditionally absolute

Laser additive manufacturing of aluminum-based stochastic and nonstochastic cellular materials

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journal of Materials Science & Technology 2024年第16期183卷 89-119页

作者： Anirban Changdar Shitanshu shekhar Chakraborty Yuncang Li Cuie Wen School of Engineering RMIT UniversityMelbourneVictoria 3001Australia Additive Manufacturing Research Group(AMRG) CSIR-Central Mechanical Engineering Research InstituteDurgapur 713209India Academy of Scientific and Innovative Research(AcSIR) Ghaziabad PIN-201002Uttar PradeshIndia

Cellular materials are gaining significant attention in product development due to their unique characteristics,offering superior mechanical performance and functionalities while minimizing material usage and environmental *** review article provides an overview of additive manufacturing(AM)technolo-gies for producing aluminum-based cellular materials,focusing on laser AM techniques including laser powder bed fusion and directed energy *** article explores the classification of cellular mate-rials into stochastic foams and nonstochastic lattice structures and discusses conventional manufacturing methods and their *** then examines the emergence of AM as a solution to these limitations,offering advantages such as design customization and optimization,shorter lead times,and the ability to manufacture complex *** article highlights the current research status on AM of cellular materials including lattice shapes,design methods,and AM *** further addresses the current status of AM of aluminum alloys,emphasizing the challenges and advances in producing aluminum-based cellular materials using AM.

关键词： Aluminum foam Directed energy deposition(DED) Lattice structure processing parameter selective laser melting(SLM)

Women in visual neural regeneration research

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Neural Regeneration Research 2025年第2期20卷 489-490页

作者： Tonia S.Rex David j.Calkins Vanderbilt Eye Institute Vanderbilt University Medical CenterNashvilleTNUSA

The year 2024 marks the 60^(th)anniversary of Title IX and 25 years since the New York Times revealed bias against female faculty members at the Massachusetts Institute of *** take an opportunity here to examine the state of gender bias in a relatively new yet already prominent field,neural regeneration in the visual system,for which there is a well-defined context useful for this *** National Eye Institute(NEI)provided the first round of research funding for its Audacious Goals Initiative(AGI)on visual neural regeneration in 2013 and the last round in ***,we focus on this *** sources included PubMed,the National Science Foundation(NSF),the NEI,the Blue Ridge Institute for Medical Research and data from the major professional organization for eye and vision research,the Association for Research in Vision and Ophthalmology(ARVO).

关键词： neural visual Times

Generation of brain vascular heterogeneity:recent advances from the perspective of angiogenesis

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Neural Regeneration Research 2025年第7期20卷 2013-2014页

作者： Nathanael j.Lee Ryota L.Matsuoka Department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA Department of Molecular Medicine Cleveland Clinic Lerner College of MedicineCase Western Reserve UniversityClevelandOHUSA

Heterogeneous proper t i es of vascular endothelial cells in the brain:The brain displays large energy dynamics and consumption,and this high level of metabolic demands is fulfilled by a continuous supply of glucose and oxygen through its vascular *** vasculature consists of highly divergent blood vessel branches,giving rise to a dense network of capillaries that supply blood to all cells across the *** elaborated vascular network is thought to develop via angiogenesis,a process in which new blood vessels grow from pre-existing *** capillaries exhibit organotypic features distinct from other tissues and are formed primarily by two major endothelial cell(EC)types:those that form the semi-permeable blood-brain barrier(BBB)and those that develop highly permeable pores known as fenestrae(Matsuoka et al.,2022).The structural and functional differences between BBB and fenestrated vascular ECs represent a fundamental feature of brain vasculature and form the foundation for both brain function and homeostasis.

关键词： angiogenesis homeostasis network

Applicability of unique scarf joint configuration in friction stir welding of AA6061-T6:Analysis of torque,force,microstructure and mechanical properties

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Defence Technology（防务技术） 2022年第4期18卷 567-582页

作者： Durjyodhan Sethi Uttam Acharya Shashank shekhar Barnik Saha Roy Department of Mechanical Engineering National Institute of Technology AgartalaBarjalaJiraniaWest TripuraPin-799046India Department of Materials Science and Engineering Indian Institute of Technology KanpurKanpur208016India

The present research introduces a unique concept of scarf joint technique in friction stir welding(FSW) of aluminum alloy AA 6061-T6 plates and an investigation on weld quality.A new joint configuration with two distinct scarf angles(75°and 60°) was considered in this *** various aspects of welding were compared with contemporary simple square butt(SSB) joint *** was carried out at a constant tool rotation speed(TRS),tool traverse speed(TTS) and tool tilt angle of 1100 rpm,2 mm/s and2°,*** results are analyzed in terms of force and torque distribution,microstructure,macrostructure,and mechanical property perspective for different joint *** study reveals the minimum amount of force and torque at 60°scarf angle joint configuration compared to that of square butt joint *** study shows that all the joints were defect-free,and a prominent onion ring was present in the lower portion of the weld nugget(WN).Fine equiaxed grains with a minimum average grain size diameter of 6.82 μm were obtained in the WN of scarf joint configuration(SjC).The maximum ultimate tensile strength(UTS) and maximum average NZ hardness of 267 MPa and83.82 HV0.1were obtained in SjC3 at a scarf angle of 60°.It has been observed from the investigation that the joint efficiency increases from 72.5%(SSB) to 86%(SjC3) at a 60° scarf *** unique characteristic may lay an impetus on probable joint strength enhancement technique without increasing the production cost.

关键词： Friction stir welding joint configuration Al alloys Force and torque Microstructure Mechanical property

User behaviour analysis using data analytics and machine learning to predict malicious user versus legitimate user

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High-Confidence Computing 2022年第1期2卷 9-18页

作者： Rohit Ranjan Shashi shekhar Kumar Thapar Institute of Engineering and Technology Thapar UniversityPatialaIndia Indian Institute of Information Technology Allahabad IIIT AllahabadPrayarajIndia

Research-based on user behavior analysis for authentication is the motivation for this *** move ahead using a behavioral approach to identify malicious users and legitimate *** this paper,we have explained how we have applied big data analytics to application-layer logs and predicted malicious users by employing a Machine Learning algorithm based on certain metrics explained later in the *** Learning would present a list of IP addresses or user identification tokens(UIT),deduced from live data which would be performing a malicious activity or are suspected of malicious activity based on their browsing *** have created an e-commerce web application and induced vulnerabilities intentionally for this *** have hosted our setup on LAMP[1]stack based on AWS cloud[2].This method has a huge potential as any organization can imply this to monitor probable attackers thus narrowing down on their efforts to safeguard their *** idea is based on the fact that the browsing pattern,as well as the access pattern of a genuine user,varies widely with that of a *** patterns would be used to sort out the incoming traffic from and list out IP addresses and UIT that are the most probable cases of hack attempts.

关键词： Application security Big data analytics Machine learning Random forest Behavioral analysis Prediction

An experimental and numerical approach-characterisation of power cartridge for water-jet application

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Defence Technology（防务技术） 2018年第6期14卷 683-690页

作者： Bhupesh Ambadas Parate Sunil Chandel Himanshu shekhar Armament Research&Development Establishment(ARDE) Dr.Homi Bhabha RoadPashanPune 411021India Defence Institute of Advanced Technology(DIAT) Giri NagarKhadakwasalaPune411025India High Energy Material Research Laboratory(HEMRL) SutarwadiPashanPune411021India

Power Cartridges are pyrotechnic devices where hot combustion gases utilized to do mechanical work for disruption of suspected Improvised Explosive Devices(IEDs). It plays a vital role either in destroying the suspicious object or making them non-functional by generating the gas pressure on burning of propellant against the water column inside the barrel, Present work is focused on characterisation,numerical solution such as deformation; strain; stress using FEM(Finite Element Method), design qualification, performance and evaluation of power cartridge for disruptor application. Experimental trials for pressure-time(P-t) measurement in closed vessel(CV), various electrical parameters like all fire current(AFC), no fire current(NFC) and ignition delay have been measured. Further, mechanical properties for brass material have been determined. An attempt has been made to characterise the power cartridge by FEM and carrying out the experiments for water-jet application.

关键词： All fire current Closed vessel Booster Characterisation Disruptor Finite element method Ignition delay Maximum pressure No fire current Power cartridge Propellant&water-jet

Neuroprotection by resveratrol-glucuronide and quercetin-glucuronide via binding to polyphenol-and glycosaminoglycan-binding sites in the laminin receptor

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Neural Regeneration Research 2025年第3期20卷 819-820页

作者： Rayudu Gopalakrishna jennifer Aguilar Emily Lee William j.Mack Department of Integrative Anatomical Sciences Keck School of MedicineUniversity of Southern CaliforniaLos AngelesCAUSA Department of Neurological Surgery Keck School of MedicineUniversity of Southern CaliforniaLos AngelesCAUSA

The dietary polyphenolic compounds resveratrol and quercetin prevent neurodegenerative diseases in experimental models;however, they reach the brain only in nanomolar concentrations in the glucuronidated and sulfated ... 详细信息

关键词： resveratrol molar dated