Search Results - "Kumar, A Ashok"

Magnetic Levitation in Chemistry, Materials Science, and Biochemistry by Ge, Shencheng, Nemiroski, Alex, Mirica, Katherine A., Mace, Charles R., Hennek, Jonathan W., Kumar, Ashok A., Whitesides, George M.

“…All matter has density. The recorded uses of density to characterize matter date back to as early as ca. 250 BC, when Archimedes was believed to have solved…”
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Universal mobile electrochemical detector designed for use in resource-limited applications by Nemiroski, Alex, Christodouleas, Dionysios C., Hennek, Jonathan W., Kumar, Ashok A., Maxwell, E. Jane, Fernández-Abedul, Maria Teresa, Whitesides, George M.

“…This paper describes an inexpensive, handheld device that couples the most common forms of electrochemical analysis directly to “the cloud” using any mobile…”
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A Paper-Based “Pop-up” Electrochemical Device for Analysis of Beta-Hydroxybutyrate by Wang, Chien-Chung, Hennek, Jonathan W, Ainla, Alar, Kumar, Ashok A, Lan, Wen-Jie, Im, Judy, Smith, Barbara S, Zhao, Mengxia, Whitesides, George M

“…This paper describes the design and fabrication of a “pop-up” electrochemical paper-based analytical device (pop-up-EPAD) to measure beta-hydroxybutyrate…”
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Automatic tractor slip-draft embedded control system by Gupta, Chanchal, Tewari, V.K., Ashok Kumar, A., Shrivastava, Prateek

“…•A real time wheel slip measurement cum display unit is developed.•A real time draft force measurement cum display unit is developed.•A real time depth sensing…”
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A comprehensive review of DC microgrid in market segments and control technique by Ashok Kumar, A., Amutha Prabha, N.

“…DC- Microgrid has been widely developed for the distribution system. Energy utilizing device is easily integrated on DC – Microgrid to minimize losses in ease…”
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Density-based separation in multiphase systems provides a simple method to identify sickle cell disease by Kumar, Ashok A., Patton, Matthew R., Hennek, Jonathan W., Lee, Si Yi Ryan, D'Alesio-Spina, Gaetana, Yang, Xiaoxi, Kanter, Julie, Shevkoplyas, Sergey S., Brugnara, Carlo, Whitesides, George M.

“…Significance Red blood cells with a high density (ρ > 1.120 g/cm ³) are characteristic of sickle cell disease. This paper demonstrates a density-based…”
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Electrical, structural, morphological and photovoltaic properties of Au/n-Ge heterojunctions using V2O5 interfacial layer by Henry Thomas, G., Ashok Kumar, A., Kaleemulla, S., Rajagopal Reddy, V.

“…Influence of vanadium pentoxide (V 2 O 5 ) interfacial layer on electrical, structural, morphological and photovoltaic properties of the Au/V 2 O 5 /n-Ge…”
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Effect of ballasting on performance characteristics of bias and radial ply tyres with zero sinkage by Kumar, Sanjeev, Pandey, K.P., Kumar, Ranjeet, Ashok Kumar, A.

“…•Effect of ballasting on performance of different tyres were studied.•Observed results were compared with the existing prediction models.•Suggested best model…”
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Chemical States, Structural, Electrical and Current Phenomenon Properties of a Au/Cobalt Phthalocyanine/Undoped-InP MPS-Type Diode with a CoPc Interlayer by Usha Rani, A., Rajagopal Reddy, V., Venkata Prasad, C., Ashok Kumar, A.

“…This work reviews the impact of cobalt phthalocyanine (CoPc) interlayers on the electrical and current transport properties of Au/undoped-InP Schottky diodes…”
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Study of current–voltage–temperature ( I– V– T) and capacitance–voltage–temperature ( C– V– T) characteristics of molybdenum Schottky contacts on n-InP (1 0 0) by Janardhanam, V., Ashok Kumar, A., Rajagopal Reddy, V., Narasimha Reddy, P.

“…The variation in electrical characteristics of Mo/n-InP (1 0 0) Schottky contacts have been systematically investigated as a function of temperature using…”
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Analysis of suitable of traction model for sandy clay loam soils on farm use of tractor by Ashok Kumar, A., Tewari, V.K.

“…A mechatronic-based embedded system was used to measure and display the dynamic wheel axle torque and tractive force of different tractor-implement…”
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Electrical transport characteristics of Ni/Pd/n-GaN Schottky barrier diodes as a function of temperature by Siva Pratap Reddy, M., Ashok Kumar, A., Rajagopal Reddy, V.

“…The electrical transport properties of Ni/Pd/n-GaN Schottky barrier diodes (SBDs) have been investigated in the wide temperature range of 100–425K. An abnormal…”
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Using Magnetic Levitation to Separate Mixtures of Crystal Polymorphs by Atkinson, Manza B. J., Bwambok, David K., Chen, Jie, Chopade, Prashant D., Thuo, Martin M., Mace, Charles R., Mirica, Katherine A., Kumar, Ashok A., Myerson, Allan S., Whitesides, George M.

“…Magnetic levitation (MagLev) provides a simple method for the separation of crystal polymorphs that differ in density (Δρ) by greater than 0.001 g cm−3…”
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Effect of complete diets containing different dual-purpose sorghum stovers on nutrient utilization and growth performance in sheep by J., Raju, J., Narasimha, N., Nalini kumari, T., Raghunanadan, V., Chinni preetam, A., Ashok kumar, P., Ravikanth Reddy

“…•The nutrient composition varied with different dual purpose sorghum cultivars.•The digestibility coefficient of dry matter is higher in improved sorghum…”
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Evaluation of a density-based rapid diagnostic test for sickle cell disease in a clinical setting in Zambia by Kumar, Ashok A, Chunda-Liyoka, Catherine, Hennek, Jonathan W, Mantina, Hamakwa, Lee, S Y Ryan, Patton, Matthew R, Sambo, Pauline, Sinyangwe, Silvester, Kankasa, Chipepo, Chintu, Chifumbe, Brugnara, Carlo, Stossel, Thomas P, Whitesides, George M

“…Although simple and low-cost interventions for sickle cell disease (SCD) exist in many developing countries, child mortality associated with SCD remains high,…”
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Electrical properties of Pt/n-type Ge Schottky contact with PEDOT:PSS interlayer by Ashok Kumar, A., Rajagopal Reddy, V., Janardhanam, V., Yang, Hyun-Deok, Yun, Hyung-Joong, Choi, Chel-Jong

“…► PEDOT:PSS interlayer led to increase in Schottky barrier height of Pt/n-Ge Schottky diodes. ► Inhomogeneity of Schottky barrier heights across the contact…”
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Embedded digital drive wheel torque indicator for agricultural 2WD tractors by Ashok Kumar, A., Tewari, V.K., Nare, Brajesh, Chetan, C.R., Srivastava, Prateek, Prakash Kumar, Satya

“…•A special transducer is developed to sense the dynamic wheel axle torque of tractor.•An embedded system is developed for signal processing and logging the…”
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Assessing viability of bio-ethanol production from sweet sorghum in India by Basavaraj, G., Parthasarathy Rao, P., Basu, Kaushik, Reddy, Ch Ravinder, Kumar, A. Ashok, Srinivasa Rao, P., Reddy, B.V.S.

“…To meet the energy requirement for transport, blending automotive fuels with ethanol has been mandated in India like several other countries across the globe…”
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Polybenzoxazine–silica (PBZ–SiO2) hybrid nanocomposites through in situ sol–gel method by Devaraju, S., Vengatesan, M. R., Ashok Kumar, A., Alagar, M.

“…New type of Polybenzoxazine–silica (PBZ–SiO 2 ) hybrid nanocomposites was prepared through in situ sol–gel method. Benzoxazine was synthesized using…”
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Enabling the Development and Deployment of Next Generation Point-of-Care Diagnostics by Derda, Ratmir, Gitaka, Jesse, Klapperich, Catherine M, Mace, Charles R, Kumar, Ashok A, Lieberman, Marya, Linnes, Jacqueline C, Jores, Joerg, Nasimolo, Johnson, Ndung'u, Joseph, Taracha, Evans, Weaver, Abigail, Weibel, Douglas B, Kariuki, Thomas M, Yager, Paul

“…  African participants were affiliated with universities (41 from Nairobi, Kenyatta, Makerere, Egerton, Aga Khan, Strathmore, and others), hospitals and…”
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