Jagtar Singh - Academia.edu (original) (raw)

IJCSIS Papers by Jagtar Singh

In this paper, a new hybrid minkowski shape fractal antenna is designed for C and X band applicat... more In this paper, a new hybrid minkowski shape fractal antenna is designed for C and X band applications. A simple and planner structure of proposed antenna fulfills the requirements of Radar, Native communication and networking and also the Space communication at a very low budget. The structure of proposed antenna is obtained by mixing two minkowski curves. Multiband behavior of antenna is achieved and better values of Gain (G), Voltage Standing Wave Ratio (VSWR) and Radiation pattern is achieved. The simulated and measured results of proposed antenna covers five resonant frequencies (6.30, 7.30, 7.40, 8.30, 8.60) GHz in C and X band. HFSS Simulation software is used to simulate the proposed antenna and MATLAB software is used to generate the scripting of proposed antenna

Papers by Jagtar Singh

With the increase in application of wireless communications including wireless LAN, wireless cabl... more With the increase in application of wireless communications including wireless LAN, wireless cable TV the demand for reliable digital transmission has been increased. Antennas are essential part of wireless communication system and antenna design affects the performance of link. An antenna is used to transform an RF signal traveling on a conductor, into electromagnetic waves in free space. The study of different types of linear antenna arrays such as broadside, binomial, Dolph-Tchebysheff arrays has been performed in this book. Then their comparison has been done on the basis of the currents flowing through the radiating elements, calculating the radiation pattern and plotting it to visualize it is one of the tasks of antenna analysis with the help of MATLAB. The rectangular antenna arrays are studied and are synthesized with the help of different commands available in the form of DSP tools. The rectangular array along with their array factor has been studied and on the basis of whi...

2015 Fifth International Conference on Advanced Computing & Communication Technologies, 2015

In this paper a compact rectangular and circular micro strip patch antenna array is designed usin... more In this paper a compact rectangular and circular micro strip patch antenna array is designed using series feed network for traffic speed detector application. Proposed antenna array has been designed using method of moment based IE3D software. Proposed antenna array operates at the resonant frequency 10.40GHz. Roger/RT duroid with dielectric constant 2.2 and height 1.588 mm has been used as a substrate material for the design of this antenna. RF power to the antenna patch has been fed by quarter wave transformer feeding method. Comparison of these antenna arrays have been done by demonstrating example of 8x1 antenna arrays. The different parameters such as return loss, gain, directivity, VSWR, antenna efficiency and radiation efficiency have been computed and compared using the IE3d simulator.

Journal of The Institution of Engineers (India): Series B, 2012

ABSTRACT In recent years the art of using artificial neural networks for wireless communication e... more ABSTRACT In recent years the art of using artificial neural networks for wireless communication engineers has been gaining momentum. In this paper a general procedure is suggested for estimating the resonant frequency of circular microstrip patch antenna using artificial neural networks. The method of moments (MOM) based IE3D software was used to generate data dictionary for training and validation set of ANN. The proposed technique uses multilayer feed-forward back-propagation artificial neural network with one hidden layers for estimating the resonant frequency of a circular microstrip antenna. A relative performance of the different training algorithms is carried out for estimating the resonant frequency with particular attention paid to the speed of computation and accuracy achieved. This type of performance comparison has not been attempted so far.

Uncertain Supply Chain Management, 2014

Int J Biol Macromol, 2011

Bacillus coagulans RCS3 isolated from hot water springs secreted five isozymes i.e. β-gal I–V of ... more Bacillus coagulans RCS3 isolated from hot water springs secreted five isozymes i.e. β-gal I–V of β-galactosidase. β-gal III isozyme was purified using DEAE cellulose and Sephadex G 100 column chromatography. Its molecular weight characterization showed a single band at 315 kD in Native PAGE, while two subunits of 50.1 and 53.7 kD in SDS PAGE. β-Gal III had pH optima in the range of 6–7 and temperature optima at 65 °C. It preferred nitro-aryl-β-d-galactoside as substrate having Km of 4.16 mM with ONPG. More than 85% and 80% hydrolysis of lactose (1–5%, w/v) was recorded within 48 h of incubation at 55 °C and 50 °C respectively and pH range of 6–7. About 78–86% hydrolysis of lactose in various brands of standardized milk was recorded at incubation temperature of 50 °C. These results marked the applications of β-gal III in processing of milk/whey industry.

International Journal of Pharmacy and Biological Sciences, 2012

Nutraceuticals are medicinal foods that enhance health, modulate immunity and thereby prevent and... more Nutraceuticals are medicinal foods that enhance health, modulate immunity and thereby prevent and cure specific diseases. They may range from natural diets, herbal products to genetically engineered foods and processed products such as cereals, soups and beverages. Biofortified crops have been considered as a complementary strategy for delivering nutrition to malnourished populations. Dairy products that contain probiotic organisms such as Lactobacillus and Bifidobacterium species represent a new research area which improves gut health by modulating gut microbial composition. The ability of nutraceuticals to influence chronic diseases like diabetes, different types of cancers, etc. should be recognized as an enormous opportunity in their treatment. They will play important role in future therapeutic developments. In this review, an attempt has been made to discuss history, classification, commercial products and regulations of nutraceuticals.

Uranium is natural radionuclides present at mBq/lto Bq/l concentrations in many aquifers worldwid... more Uranium is natural radionuclides present at mBq/lto Bq/l concentrations in many aquifers worldwidedue to leaching and transport mechanism from natural deposits. Human activities such as mill tailings, nuclear industry, coalcombustion and the use of phosphate fertilizers can also alter the natural composition of groundwater. Uranium through water transferred to the human food chain and its ingestion and inhalation causes many health problems. Manybioindicators are used to predict the path and durationof uranium remain in the body, which permits the risks calculation to specific tissues, organs as well as the whole body. So, a combination of both biological and non-biological methods seems to be the most promising way to efficiently remediate the uranium from groundwater.Hydrogeologists increasinglyrely on bioremediation of contaminated groundwaterbased on immobilization of the metal by bioreduction or biosorption. This review deals with the trafficking, prevention and possible remediation of uranium from groundwater.

International Journal of Applied Biology and Pharmaceutical Technology

Cancer originates from the abnormal expression or activation of positive regulators and functiona... more Cancer originates from the abnormal expression or activation of positive regulators and functional suppression of negative regulators. The World Health Organization (WHO) estimates that 84 million people will die of cancer between 2005 and 2015 without intervention. Research suggests that one-third of cancer deaths can be avoided through prevention. Major cancer treatment modalities are surgery, radiation therapy and chemotherapy. Radiation therapy is an important cancer treatment method and is used for approximately 50% of all cancer patients with varying success. Therapy uses high-energy waves or particles to destroy cancer cells. It can be used basically for three main reasons: to achieve high radiation dose into tumors; minimizing dose into surrounding normal tissues; to avoid complications as far as possible. The recent advances in this treatment method have led to the improvement in cancer death statistics. It can also be combined with surgery or chemotherapy for better results. This review covers general applications, various side effects/agents and factors affecting to get rid of these effects and strategies to improve radiation therapy.

Biotechnology and Applied Biochemistry

Research journal of biotechnology

J JS S1 1 S St tr ra ai in n i in n L Lo ow w C Co os st t A Ag gr ri ic cu ul lt tu ur re e W Wa... more J JS S1 1 S St tr ra ai in n i in n L Lo ow w C Co os st t A Ag gr ri ic cu ul lt tu ur re e W Wa as st te e M Me ed di iu um m Abstract Utilization of agriculture byproducts can contribute to efficient solid-waste management. Production of CMCase using different agricultural byproducts such as coconut seed meal, sesame seed meal, cotton seed meal, mustard seed meal, maize bran and wheat bran was studied with Bacillus sphaericus JS1 (MTCC Accession No 3243). It worked best at pH 7.0 in the presence of 12h seed culture of 6.0% (v/v) for the production of CMCase at 40 o C. ≥85% of relative activity of enzyme was produced in the range of pH 7-9. Coconut seed meal media worked best at all experimental concentrations (142, 158, 142, 158% relative activity at 0.25, 0.50, 0.75 and 1.0% w/v respectively) for the production of enzyme. Sesame seed meal media reported marginally higher production of enzyme (110, 135, 110, 105% relative activity at 0.25, 0.50, 0.75 and 1.0% w/v respectively) as compared to control. Cotton seed meal media observed higher production of CMCase (119, 131% relative activity at 0.50 and 0.75% w/v respectively). Coconut seed meal, cotton seed meal and sesame seed meal worked better for the production of CMCase than the branded chemicals/control media. Optimum production of JS1 CMCase can be achieved by utilizing agriculture byproducts at cost effective rates at large scale.

International Journal of Applied Biology and Pharmaceutical Technology

Ocimum sanctum, commonly known as the white holy basil herb belonging to Lamiaceae family is one ... more Ocimum sanctum, commonly known as the white holy basil herb belonging to Lamiaceae family is one of the oldest and popular medicinal plant rich in various phytonutrients and antioxidants. In this study, the comparative evaluation of flavonoids, phenolic content, and antioxidant capacity was carried out in methanolic extract prepared from O. sanctum leaves and seeds. The TAC, TPC, and the TFC were measured by ammonium molybdate, Folin-Ciocalteau and aluminum chloride method respectively. Antioxidant activity was also determined by using DPPH and FRAP assay. In response to the above assays, TACs of O. sanctum leaf and seed extracts were 25-248 and 0.011-0.109 µg AAE/10 mg of extract respectively. The TFC assay showed that leaf extract of O. sanctum (14-225 µg QE/10mg extract) had higher flavonoid content than the seed extract (0.009-0.119 µg QE/10 mg extract) and the TPC assay in the leaf extract (4.49-9.31 µg GAE/mg extract) was higher than those present in seed (4.10-9.05 µg GAE/mg extract). In DPPH assay, % inhibition in O. sanctum leaf extract was determined in the range 18-76% while in seed extract it was 6-29% and in FRAP assay, leaf extract displayed reducing power in range 0.48-5.50 µg FSE /mg extract while in seed extract it was 0.16-5.46 µg FSE /mg extract. It was observed that O. sanctum leaf extract had high total phenolic and flavonoid content in addition to antioxidant capacity as compared to its seed extract.

Beiträge zur Klinik der Tuberkulose

International Journal of Applied Biology and Pharmaceutical Technology

ADAM33 is zinc-dependent metalloproteases comprised of seven domains and has range of single nucl... more ADAM33 is zinc-dependent metalloproteases comprised of seven domains and has range of single nucleotide polymorphisms. These polymorphisms were found to be genetically associated in bronchial hyperresponsiveness that accounts its involvement in asthma. A case-control study was conducted with 483 healthy controls and 481 asthma patients in the present study. DNA samples were extracted from blood and the genotyping was done using PCR-RFLP method. Statistical analysis revealed that ADAM33 V4C>G polymorphism show highly significant association towards asthma with significant OR=1.40, p=0.017 in CG genotype and two fold risk in mutant GG genotype (p=0.000). Furthermore, mutant allele G was also highly significant towards the disease with OR=1.39 and p=0.000. However, ADAM33 F+1G>A, rs511898 gene polymorphism was significantly associated with asthma in only male and female phenotypes. This study concludes that the ADAM33 gene polymorphism plays an important role in the pathogenesis of asthma in a North Indian population.

International Journal of Agriculture and Biology

A medium containing meat extract and fructose (1%) has been optimized for production of extra-cel... more A medium containing meat extract and fructose (1%) has been optimized for production of extra-cellular and alkaline αamylase from Bacillus sp. AB 04. The crude enzyme showed maximum activity at pH 8 with optimum temperature of 40 o C with more than 75% activity in range of 50 -80 o C. The enzyme retained more than 94% of activity after 5 h of incubation at optimum pH and stable in the pH range of 7 -10. Ca +2 and Co +2 act as strong activator of this enzyme. AB04 α-amylase rapidly hydrolyzed starch resulting in the formation of glucose, maltose and other oligosaccharides.

Galactosidase (EC 3.2.1.23) was produced from mesophilic bacterial strain Bacillus sp. NV1 from l... more Galactosidase (EC 3.2.1.23) was produced from mesophilic bacterial strain Bacillus sp. NV1 from local milk plant. The enzyme was partially purified using ammonium sulphate (20-70%). The optimum 0 temperature of β-galactosidase was 40 C and pH range was 6-7. The enzyme was quite stable and lost 40% 0 0 activity in 6 h at 50 C with t of 3 h at 55 C. The enzyme 1/2 3+ 2+ was slightly inhibited by Fe and Cu and activated by + + + + 2+ Na , Ni , Ca and Zn , Co with K of 20.83 mM and V m max of 204.08 U/ml. The partially purified enzyme hydrolyzed 98% of lactose (5%) within 12 h of incubation thereby making this enzyme useful for various industrial purposes. Introduction:

2015 Fifth International Conference on Advanced Computing & Communication Technologies, 2015

Journal of The Institution of Engineers (India): Series B, 2012

Uncertain Supply Chain Management, 2014

Int J Biol Macromol, 2011

International Journal of Pharmacy and Biological Sciences, 2012

International Journal of Applied Biology and Pharmaceutical Technology

Biotechnology and Applied Biochemistry

Research journal of biotechnology

International Journal of Applied Biology and Pharmaceutical Technology

Beiträge zur Klinik der Tuberkulose

International Journal of Applied Biology and Pharmaceutical Technology

International Journal of Agriculture and Biology

Biotechnology journal

Studies on the alpha-amylase-producing thermophilic bacterium isolated and identified from a hot ... more Studies on the alpha-amylase-producing thermophilic bacterium isolated and identified from a hot spring in Jordan and designated as Geobacillus stearothermophilus JT2 were carried out. The optimum conditions for growth and enzyme production were pH 7 and 55 degrees C. The study of the kinetics of cellular growth indicated a mu(max) of 0.22/h, a K(s) of 1.2 g/L, a tau(d) of 3.15 h and a Y(x/s) of 0.43 g cell/g starch. In addition, the activation energy for growth and death were estimated and found to be 30.5 and 210 J/mol, respectively. The effect of different carbon and nitrogen sources on the cellular growth was tested.