OALib Journal期刊

ISSN: 2333-9721




2020 ( 70 )

2019 ( 226 )

2018 ( 300 )

2017 ( 273 )


匹配條件: “ V Kumar” ,找到相關結果約149640條。
Conceptual Model Fit for Career Planning and Development of Employees with Special Reference to Private Sector Banks by Using Structural Equation Model  [PDF]
V. Suresh Kumar, A. Manonmani, V. Ramesh Kumar
American Journal of Industrial and Business Management (AJIBM) , 2018, DOI: 10.4236/ajibm.2018.89132
Abstract: Powerful career planning of employees is reliant on viable execution administration, where administration considers correspondence and reconciliation as a wellspring of keeping employees relentlessly on their approach to objectives accomplishment. The focal point of this investigation, hence, was to survey whether there was career planning and development has its impact on worker inspiration, having a tendency to lose its performing employees work fulfillment and devotion. The present research is a survey on limited scale. It is on the other a descriptive-cum-analytical effort on the selected variables of the study. It is studied how and to what extent the independent variables make changes in the dependent variables. The researcher collected the data from 1000 employees and the sample size is adjusted and determined as 860 respondents to obtain more and clear information. The survey concludes that findings confirm that the model fit is absolutely suitable for this analysis.
Characterisation of Landscape with ForestFragmentation Dynamics  [PDF]
T. V. Ramachandra, Uttam Kumar
Journal of Geographic Information System (JGIS) , 2011, DOI: 10.4236/jgis.2011.33021
Abstract: Land cover (LC) and land use (LU) dynamics induced by human and natural processes play a major role in global as well as regional patterns of landscapes influencing biodiversity, hydrology, ecology and climate. Changes in LC features resulting in forest fragmentations have posed direct threats to biodiversity, endangering the sustainability of ecological goods and services. Habitat fragmentation is of added concern as the residual spatial patterns mitigate or exacerbate edge effects. LU dynamics are obtained by classifying temporal remotely sensed satellite imagery of different spatial and spectral resolutions. This paper reviews five different image classification algorithms using spatio-temporal data of a temperate watershed in Himachal Pradesh, India. Gaussian Maximum Likelihood classifier was found to be apt for analysing spatial pattern at regional scale based on accuracy assessment through error matrix and ROC (receiver operating characteristic) curves. The LU information thus derived was then used to assess spatial changes from temporal data using principal component analysis and correspondence analysis based image differencing. The forest area dynamics was further studied by analysing the different types of fragmentation through forest fragmentation models. The computed forest fragmentation and landscape metrics show a decline of interior intact forests with a substantial increase in patch forest during 1972-2007.
A Comparative Study on the Milling Speed for the Synthesis of Nano-Structured Al 6063 Alloy Powder by Mechanical Alloying  [PDF]
Hafeez Ahamed, V. Senthil Kumar
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2011, DOI: 10.4236/jmmce.2011.106038
Abstract: The present article reports on characterization studies performed on amorphized nanostructured Al 6063 alloy powder synthesized by mechanical alloying (MA). The as-milled powder was characterized by X-ray diffraction (XRD) for investigating the development of crystallite nature and determining the different phases of the materials present, scanning electron microscope (SEM) was used for in depth morphological study and High Resolution-transmission electron microscope (HR-TEM) was employed to ensure the development of a nano-structured nature of the Al 6063 matrix. In the present work alloyed powder was milled for 20 h and 40 h at 300 rpm; and 20 h at 700 rpm in a hardened stainless steel medium. Using Williamson-Hall equation; crystallite size, lattice strain and lattice parameter of Al 6063 nanostructure alloy powder was estimated with broadening of XRD peaks. XRD results showed that the crystallite size of Al 6063 alloy powder reached 32 and 53 nm after 20 h at 700 rpm and 40 h at 300 rpm respectively.
Effect of FCAW Process Parameters on Weld Bead Geometry in Stainless Steel Cladding  [PDF]
V. Vasantha Kumar, N. Murugan
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2011, DOI: 10.4236/jmmce.2011.109064
Abstract: Recently automated and / or robotic welding systems have received a great deal of attention because they are highly suitable not only to enhance production rate and quality, but also to decrease cost and time to manufacture for a given product. To get the desired quality welds it is essential to have complete control over the relevant process parameters in order to obtain the required bead geometry. Mathematical models need to be developed to have such control and to make effective use of automated and / or robotic arc welding process.
Void Aware Position Based Opportunistic Routing for QoS in Mobile Ad Hoc Networks  [PDF]
V. Raji, N. Mohan Kumar
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.78132
Abstract: The unique anywhere, anytime wireless communication support offers, tremendous potential for the next generation of applications in a Mobile Ad-hoc Network (MANET). The Quality of Service (QoS) has been the ever demanding task of wireless communication to satisfy the application requirements. Geographical routing employs a greedy forwarding technique to deliver the packets to the destination and to owe the communication void, it fails to render the expected level of QoS. Opportunistic routing technique effectively utilizes the advantages of broadcasting nature of thewireless medium and selects a set of forwarding candidates instead of relying on a greedy node.To improve the efficiency of QoS routing in sparse and highly dynamic network topology, this paper proposes the Void-Aware Position based Opportunistic Routing (VAPOR). The VAPOR maintains 2-hop neighbor information to take a routing decision, but it is limited to 1-hop informationwhen the node density is high. It efficiently balances the storage overhead and communicationdelay due to void and it increases the network throughput even under a sparse network. To provide a certain assurance level for packet reachability, VAPOR decides the potential forwardersbased on the forwarding probability that measures link stability, capacity, and connectivity factor. It adaptively favors a path that avoids frequent link failure and unreliable link usage. By limitingthe propagation area of duplicate packets, VAPOR reduces wastage of network resources, and ittakes the advantage of concurrent batch forwarding to avoid further duplication and unnecessary delay.
Kumar V*
International Journal of Pharmacy and Biological Sciences , 2011,
Abstract: Oral drug delivery is the most preferable route of drug administration due to ease of administration, patient compliance, flexibility in formulation etc. However in case of the oral route there are several challenges such as first pass metabolism and drug degradation in gastrointestinal environment and poor pharmacological response. Other routes of administration proposed are nasal, pulmonary, transdermal, buccal or rectal drug delivery. These routes offer advantages but they also require some development time. A candidate drug can enter into the development phase but there are problems in delivery of the drug. Drugs having low oral bioavailability show low plasma profile. The buccal mucosa is one of the administration sites that might provide an alternative for peroral administration. This review will provide an insight into this route of drug delivery and the formulations that are, or can be, used, and it will also describe the challenges or possibilities of this route of administration. There is novel drug delivery system like buccal drug delivery system in which drug enters directly in systemic circulation thereby by passing the first pass effect. Contact with digestive food of gastrointestinal tract is avoided which might be unsuitable for stability of many drugs. This is painless and without discomfort, precise dosage form and facilitates ease of removal without significant associated pain. Moreover it shows better stability, patient compliance; uniform and sustained drug release and above all easy and cheap methods of preparation which can be done with various commonly available biocompatible polymers.
Epidemiology of burns among married women in India.
Kumar V
Journal of Postgraduate Medicine , 2002,
A scanning electron microscope study of prevalence of accessory canals on the pulpal floor of deciduous molars
Kumar V
Journal of the Indian Society of Pedodontics and Preventive Dentistry , 2009,
Abstract: The present in vitro study was carried out on 60 extracted human maxillary and mandibular, first and second primary molars, which were distributed equally into four groups to determine the prevalence, size, shape, location, and number of accessory canals in the pulpal floor of primary molars. The specimens were observed under scanning electron microscope. Out of 60, 34 teeth showed accessory canals with 97 patent canals. It was observed that maxillary molars showed a greater number of accessory canals when compared to mandibular molars, but mandibular molars showed a greater dimension in the size of the accessory canals. Round and oval accessory canals were seen, with round being more predominant.
Trace Elemental Analysis in Epileptic Children  [PDF]
Sanjeev Kumar, V. Kumar, Reena Mittal, D. C. Jain
Open Journal of Applied Sciences (OJAppS) , 2013, DOI: 10.4236/ojapps.2013.38056

We have measured trace elements in epileptic patients. Levels of trace elements are very fluctuating in comparison to the healthy controls. The levels of Zn, Fe and Cu are higher in comparison to healthy normal children about 64%, 55% and 33% respectively. The levels of Cu are just fifty percent to levels of Zn. The levels of Ca, K and Mg are higher about 10%, 9.027% and 4.2% in comparison to normal children. Sodium levels were very low in comparison to all the trace elements and are higher about 3.2% than controls. The multiple correlation coefficients between Na, K and Ca, i.e. (RNa.KCa) has a value 0.4993 in comparison to healthy children. Multiple correlation coefficients between Fe, Cu and Zn, i.e. (RFe.CuZn) has a value 0.4366. The multiple correlation coefficients RNa.Kca and?RFe.CuZn are found lower. These elements were strongly correlated with other. The multiple correlation coefficients such as RK.NaCa, RCa.K.Na, RMg.NaK, RNa.MgK, RK.MgNa, RCu.FeZn and RZn.FeCu were also evaluated and found on higher side from normal range. Trace elements may act as a catalytic agent for enzyme system of the cells. The minimum requirements of living objects for essential trace elements may be expressed in proportions or concentrations of the total dry food taken everyday. A tolerance of the human system may be fluctuated according to intake of these elements.

Effect of Heat Treatment on Tensile and Corrosion Properties of LM6 Hybrid Metal Matrix Composite Reinforced with Cenosphere and Red Mud  [PDF]
Ravi Kumar V., Suresh R., Prakash Rao C. R., Ravi Kumar D. V., Bharat V.
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2019, DOI: 10.4236/jmmce.2019.71001
Abstract: The increased expectation of automotive, aviation and marine industries pertaining to the enhanced properties and their use in elevated temperature conditions and also corrosive environments leads to the development of the newer material to meet the requirements. The requirements of the automobile and marine applications call for the increased mechanical properties and lower density accompanied with higher resistance to oxidation. Hence the present research work is aimed at the development of Hybrid metal matrix composites (HMMCs) using low-density base material and reinforcements. The aluminum of grade LM6 is preferred material in automobile industries, because it can be cast to any complex geometry and possess good machinability, further upon heat treatment, the properties of LM6 alloy can be enhanced to meet the industry requirements. However, requirements of automobile industries consist of increased mechanical properties, lower density and higher corrosion resistance. Hence, in the present research work, it is aimed to develop newer composite material using LM 6 grade Aluminum alloy as matrix material which is reinforced with varied percent Cenosphere and Red mud.

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