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Ashutosh Kumar
Indian Institute of Technology Roorkee
Supercritical fluidPathologyChemistryBiomassMedicine
17Publications
4H-index
83Citations
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Publications 17
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#1Shivam Thakur (IITR: Indian Institute of Technology Roorkee)
#2Ashutosh Kumar (IITR: Indian Institute of Technology Roorkee)H-Index: 4
Last. Sivamohan N. Reddy (IITR: Indian Institute of Technology Roorkee)H-Index: 12
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ABSTRACTThe effective disposal of industrial pharmaceutical waste waters with the desired quality has become a challenge. Supercritical water oxidation which involves water beyond critical point ha...
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#1Ashutosh Kumar (IITR: Indian Institute of Technology Roorkee)H-Index: 4
#2Sivamohan N. Reddy (IITR: Indian Institute of Technology Roorkee)H-Index: 12
Abstract Integration of metals into the biomass matrix has been found to be an alternate strategy to the conventional catalysts that are prone to deactivation. Different metals like Ni (0.98 mol/kg), Ru (0.76 mol/kg) and Fe (0.83 mol/kg) are separately impregnated into banana pseudo-stem to analyse their impact on H2 yields. In-situ gasification of metal impregnated biomass was conducted over sub/- and supercritical water range of 300–600 °C, with 1:10 biomass-to-water ratio for 60 min. X-ray di...
1 CitationsSource
#1Ashutosh Kumar (IITR: Indian Institute of Technology Roorkee)H-Index: 4
#2S.V. Prasad Mylapilli (IITR: Indian Institute of Technology Roorkee)H-Index: 1
Last. Sivamohan N. Reddy (IITR: Indian Institute of Technology Roorkee)H-Index: 12
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Abstract Pyrolysis/gasification have proved to be promising conversion techniques to convert biomass into fuels. The current research work focuses on impregnation of Ru and Fe into banana pseudo-stem to study kinetics, pyrolytic behaviour and their impact during pyrolysis through thermogravimetric analyser (TGA). Samples weight loss were analyzed by TGA at four different heating rates (5–20 °C min−1) over the temperature range of 30–900 °C. Isoconversional models such as Flynn-Wall-Ozawa (FWO), ...
1 CitationsSource
#1Ashutosh Kumar (IITR: Indian Institute of Technology Roorkee)H-Index: 4
#2Sivamohan N. Reddy (IITR: Indian Institute of Technology Roorkee)H-Index: 12
Nanocatalysts and their integration into biomass have gained importance over the past few years. This research gave insights on impregnation of Ni salts in bagasse and mosambi peels with the variation of pH at 30 °C for 48 h. The highest loading was attained at pH 6.5 for bagasse and 5.2 for mosambi peels. The impregnated metal biomass samples were subjected to in situ hydrothermal gasification over the temperature range 300–500 °C. The transition of Ni2+ to metal nickel nanoparticles during in ...
3 CitationsSource
#1Arjit AgarwalH-Index: 3
#2Ashutosh KumarH-Index: 4
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#1Kishore Debnath (National Institute of Technology, Meghalaya)H-Index: 4
#2Mohit Sisodia (IITR: Indian Institute of Technology Roorkee)H-Index: 1
Last. Inderdeep Singh (IITR: Indian Institute of Technology Roorkee)H-Index: 21
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Drilling is an inevitable machining technique that facilitates the assembly of composite parts. Drilling with the traditional tools causes significant damage to the composite parts. The forces that are produced during drilling are mostly accountable for the damage or rejection of the parts. Therefore, the main aim of the present investigation is to reduce the forces and subsequent damage that is induced during drilling operation. Thus, new tool geometry has been conceptualized, designed, develop...
7 CitationsSource
Background: Dengue fever (DF) is a viral hemorrhagic fever causing severe morbidity and mortality in affected patients. Aims: The purpose of our study was to evaluate the changing trends in radiological findings in DF, to find if ultrasound is useful in the diagnosis of DF during an epidemic in absence of serological tests, and also to investigate the effects of DF in pregnancy. Materials and Methods: A prospective study was conducted in 2013 comprising of 400 patients who were serologically pos...
1 CitationsSource
Background Abdominal tuberculosis (TB) is the sixth most common form of extra-pulmonary site of infection after lymphatic, genitourinary, bone and joint, miliary and meningeal TB with a rising incidence in recent years. TB can affect any part of the gastro-intestinal (GI) tract including anus, peritoneum and hepato-biliary system. The clinical manifestations of abdominal tuberculosis are non-specific and mimic various GI disorders and cause delay in diagnosis and management.
12 CitationsSource
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