Browsing Year-2011 by Title

Now showing items 14-33 of 53

A fan-beam radiator using waveguide's narrow wall for horizontal polarization and high power

Devarapalli, N.R.; Baum, C.E.; Christodoulou, C.G.; Schamiloglu, E. (2016-11-28)

A configuration for a narrow-band rugged highpower antenna with a horizontally polarized fan-beam radiation pattern is proposed. This antenna is a longitudinal aperture array in the narrow wall of an air-filled rectangular ...
Fine tuning of a solvatochromic fluorophore for selective determination of Fe3+: a new type of benzimidazole-based anthracene-coupled receptor

Lee, D.Y.; Singh, N.; Jang, D.O. (2016-05-13)

We synthesized a novel benzimidazole-based, anthracene-coupled fluorescent receptor capable of recognizing and estimating the concentrations of Fe3+ in semi-aqueous solution by ratiometric estimation. Our sensor can be ...
Flank wear and machining performance of cryogenically treated tungsten carbide inserts

Gill, S. S.; Singh, H.; Singh, R.; Singh, J. (2021-09-02)

Cryogenic treatment has been accredited as a means of enhancing the cutting life of tungsten carbide turning inserts. Most of the research conducted till date has been limited to evaluate the percentage improvement in ...
High temperature corrosion behaviour of HVOF-sprayed Ni-20Cr coating on boiler steel in molten salt environment at 900°C

Kaushal, G.; Singh, H.; Prakash, S. (2021-09-15)

Ni-20Cr coating was deposited on a commonly used boiler steel ASTM A213 347H by high-velocity oxy-fuel (HVOF) thermal spray process to enhance its high-temperature corrosion resistance. High temperature corrosion behaviour ...
High-temperature erosion-corrosion performance of high-velocity oxy-fuel sprayed Ni-20 Cr coating in actual boiler environment

Kaushal, G.; Singh, H.; Prakash, S. (2016-11-28)

The high-velocity oxy-fuel (HVOF) spray technique was used to deposit Ni-20Cr coating on a commonly used boiler steel ASTM A213 347H. The specimens with and without coating were exposed to the super heater zone of a thermal ...
Influence of superheat on microstructure and mechanical properties of ductile Cu 47.5Zr 47.5Al 5 bulk metallic glass-matrix composite

Antonysamy, A. A.; Pauly, S.; Dhindaw, B. K.; Eckert, J. (2021-09-02)

Generally bulk metallic glasses (BMGs) posses very less ductility and toughness at room temperature. Over the recent past years to improve up on these properties in many alloy system BMG composites have been developed. ...
Investigation on wear behaviour of cryogenically treated TiAlN coated tungsten carbide inserts in turning

Gill, S.S.; Singh, J.; Singh, H.; Singh, R. (2016-05-13)

Cryogenic treatment has been ascribed as a way of improving the cutting life of tungsten carbide turning inserts. Most of the research conducted till date has not reported any effort to excavate the effect of cryogenic ...
Light interaction of a nanoparticle embedded tissue towards a novel hyperthermia treatment

Soni, S.; Tyagi, H.; Kumar, A. (2021-09-16)

Light interaction of nanoparticles embedded in a tissue decides the amount of thermal energy absorbed, which is key to plasmonic photothermal therapy, a recent concept for treatment of cancer. The light interaction ...
Mathematica simulation of peristaltic pumping with double-diffusive convection in nanofluids: a bio-nanoengineering model

Be´g, O. A.; Tripathi, D. (2021-09-20)

A theoretical study is presented to examine the peristaltic pumping with double-diffusive (thermal and concentration diffusive) convection in nanofluids through a deformable channel. The model is motivated by the need to ...
Metallurgical principles of cryogenically treated tool steels - A review on the current state of science

Gill, S.S.; Singh, J.; Singh, R.; Singh, H. (2016-11-28)

The cryogenic treatment of tool steels has transformed over centuries from black art to science, but the metallurgical principles responsible for increase in wear resistance, tensile strength, toughness, and stability ...
Modelling human preference in evolutionary art

Ek´art, A.; Sharma, D.; Chalakov, S. (2021-09-20)

Creative activities including arts are characteristic to humankind. Our understanding of creativity is limited, yet there is substantial research trying to mimic human creativity in artificial systems and in particular ...
Morphological controlled synthesis of micro-/nano-polyaniline

Prathap, M. U. A.; Srivastava, R. (2021-09-02)

A novel, highly efficient and economical route is developed for the synthesis of polyaniline micro-/nanostructure. Materials were characterized by a complementary combination of X-ray diffraction, Scanning electron ...
Morphologically controlled synthesis of copper oxides and their catalytic applications in the synthesis of propargylamine and oxidative degradation of methylene blue

Srivastava, R.; Anuprathap, M.U.; Kore, R. (2016-05-13)

Alcohol/nonionic polymeric surfactant assisted, morphologically controlled synthesis is developed for micro-/nanostructured crystalline copper oxide. Materials were characterized by a complementary combination of X-ray ...
New tripodal and dipodal colorimetric sensors for anions based on tris/bis-urea/thiourea moieties

Bhardwaj, V.K.; Sharma, S.; Singh, N.; Hundal, M.S.; Hunda, G. (2019-05-08)

Seven neutral tripodal and dipodal receptors having mesitylene/triethylbenzene as core moiety, urea/thiourea as binding groups and p-nitrobenzene as signalling unit have been reported. The receptors act as selective ...
Numerical study on creeping flow of Burgers' fluids through a peristaltic tube

Tripathi, D. (2016-11-28)

Motivated by the objective of improving an understanding of the complex rheological fluid dynamics in fluid engineering and biomedical engineering, we consider the creeping flow of Burgers’ fluid with a fractional model ...
An overview of slurry erosion control by the application of high velocity oxy fuel sprayed coatings

Goyal, D. K.; Singh, H.; Kumar, H. (2021-09-16)

Slurry erosion of turbine components is a serious problem in most of the hydraulic power plants all around the world. Although some counter measures such as catchment area treatment to reduce the amount of sand particles ...
Peristaltic flow of couple-stress conducting fluids through a porous channel: applications to blood flow in the micro-circulatory system

Tripathi, D. (2021-09-20)

The present investigation is devoted to study a theoretical investigation of the peristaltic flow of a couple-stress conducting fluids in a porous channel under the influence of slip boundary condition. This study is ...
Piezoelectric transducer based devices for development of a sustainable machining system - A review

Joshi, R.S.; Singh, H. (2016-11-28)

Sustainability in production is to develop a system that reduces usage of resources for converting raw material into useful product; Moreover, it could produce waste that can be directly used by another production system. ...
Prediction of wrinkling and determination of minimum blankholding pressure in multistage deep drawing

Agrawal, A.; Reddy, N. V.; Dixit, P. M. (2021-09-02)

Wrinkling in the flange region has been observed during redrawing operation by a few researchers. In the present work an analysis methodology, based on a combination of upper bound and energy approaches, is proposed for ...
Quantum dot based chemosensors: selective estimation of Cu2+ in Semi-aqueous medium

Sheoran, V.; Saluja, P.; Singh, N.; Kaur, N. (2021-09-16)

Quantum dots are the semiconducting nanocrystals whose exicitons are restricted in all the three dimensions within a range of 2-10 nm. Due to the phenomenon called quantum confinement they have unique optical and ...

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