A5025944094- Analytical Chemistry and Chromatography
- Landslides and related hazards
- Geotechnical Engineering and Analysis
- Flood Risk Assessment and Management
- Hydrology and Sediment Transport Processes
- Chemical Synthesis and Analysis
- Hydraulic flow and structures
- Mass Spectrometry Techniques and Applications
- Soil erosion and sediment transport
- Water Quality and Pollution Assessment
- Analytical Methods in Pharmaceuticals
- Chemical Reaction Mechanisms
- Dam Engineering and Safety
- Hydrological Forecasting Using AI
- Inflammatory mediators and NSAID effects
- Metabolomics and Mass Spectrometry Studies
- Sensorless Control of Electric Motors
- Multilevel Inverters and Converters
- Geophysical and Geoelectrical Methods
- Molecular Sensors and Ion Detection
- earthquake and tectonic studies
- Chromatography in Natural Products
- Advanced Numerical Analysis Techniques
- Pharmacogenetics and Drug Metabolism
- Water resources management and optimization
Galgotias University
2025
CGIAR
2024
National Institute of Technology Hamirpur
2017-2023
Institute of Zoology
2018
Institute of Seismological Research
2017
Indian Institute of Technology Roorkee
1999-2015
National Institute of Technology Warangal
2010
City University of New York
1995
University of Delhi
1990
The present study examines the use of pier slots and collars for reducing local scour at bridge piers. efficacy slots, different lengths angles attack, was studied through experiments. reduction due to placement circular collars, sizes elevations, also investigated. Analysis data from experiments as well earlier studies led an equation maximum depth around piers fitted with collars. applies uniform-sized sediment in clear-water flow.
This article deals with the numerical simulation of cracked plate using extended isogeometric analysis (XIGA) under different loads and boundary conditions. The formulation is done first-order shear deformation theory. crack faces are modeled by Heaviside function, whereas singularity in stress field at tip enrichment functions. intensity factors for numerically computed a domain-based interaction integral. results obtained XIGA center edge compared finite element method and/or literature types
Flume experiments have been carried out under clear water scour conditions to analyze the maximum equilibrium depth and processes in armored streambeds. A total of 85 using different diameters circular piers non-uniform gravels. graphical approach for dimensionless condition around pier streambeds has developed. As per this curve, variation with armor particle size depends on densimetric Froude number (Frd50), decreasing rate decreases value Frd50.
The present investigation was conducted to study the water quality of river Ganga during Kanwar Mela 2017 with reference physico-chemical and microbiological characteristics at Haridwar city.Five sampling sites viz., Har ki Pauri (HKP), Vishnu Ghat (VG), Daksh Mandir (DM), Pul Jatwara (PJ) Bhimgoda Barrage (BGB as control) were selected for collection samples.The reseult revealed that among different sites, maximum values EC (0.164 dS m -1 ), TS (545 mg L TDS (320 TSS (225 pH (8.76), DO...
Abstract TLC and HPLC methods were developed for indirect chiral separation of penicillamine (3,3‐dimethylcysteine) enantiomers after derivatization with Marfey's reagent (FDNP‐Ala‐NH 2 ) two its structural variants, FDNP‐Phe‐NH FDNP‐Val‐NH . The binary mobile phase phenol–water (3:1 v/v) solvent combinations acetonitrile triethylamine phosphate buffer found to give the best in normal reversed‐phase TLC, respectively. diastereomers also resolved on a C18 column gradient elution 0.01 m...
Abstract A high‐performance liquid chromatographic (HPLC) method was developed for chiral assay of baclofen enantiomers in pharmaceutical formulations using an indirect approach. Baclofen were derivatized with Marfey's reagent (FDNP‐ l ‐Ala‐NH 2 ) and its structural variants FDNP‐ ‐Phe‐NH , ‐Val‐NH ‐Leu‐NH ‐Pro‐NH . The resultant diastereomers separated on RP‐TLC [triethylammonium phosphate buffer (pH 4.0, 50 m )–acetonitrile, 50:50] a C 18 column linear gradient (45 min) acetonitrile 0.01%...
Two new structural variants of Marfey's reagent (1-fluoro-2,4-dinitrophenyl-5-l-alaninamide, FDNP-l-Ala-NH2) were synthesized by nucleophilic substitution one fluorine atom in 1,5-difluoro-2,4-dinitrobenzene (DFDNB) l-methioninamide or d-phenylglycinamide. The FDNP-l-Met-NH2 and FDNP-d-Phg-NH2 characterized used for derivatization twenty-six α-amino acids. resulting diastereomeric derivatives separated on a reversed-phase C18 HPLC column using linear gradient acetonitrile aqueous...
IntroductionArtificial Intelligence (AI) can be defined as constructing computer programs that (i) are capable of exhibiting intelligence, (ii) exhibit intelligence by using processes used humans for the same tasks, and (iii) complementing or supplementing human (Simon, 1995). As Epstein said (2015), "Although original vision artificial
<title>Abstract</title> Groundwater irrigation supports over 40% of global crop production and stabilizes yields amidst climatic change. Yet, over-abstraction can cause water scarcity, disrupt ecosystems, increase greenhouse gas emissions. Governments international financial institutions have made significant investments in sustainable groundwater but require enhanced spatial targeting to impact. In response, this study employs an agro-hydrological machine-learning approach analyze patterns...
Sikkim, the smallest hilly state of Indian Union lies in Eastern Himalayas. Owing to altitudinal variation (300 8,400 metres) exhibits climate ranging from Sub-tropical Alpine. In addition variety environments, there is a large ethnic groups solely depending on nearby forests for their day needs. High population pressure and lack economic opportunities has led ‘over use’ environment by way lopping away few species sale markets. Illicit cutting trees become common feature meet firewood timber...
This paper proposed simple algorithm for direct flux and torque controlled three phase induction motor drive systems. Proposed method is based on control of decoupled between amplitude angle reference stator determining required voltage vector. The as well errors within the given sampling time are by vector which evaluated from flux. achieved generates instantaneous slip angular frequency rotor frequency. kept constant at rated value. technique gives better performance in than conventional...