세계 M&A 시장 새 강자로 떠오른 인도 ; 인도 기업들이 해외 M&A에서 두각을 나타내는 이유 -풍부한 자본조달, 높은 기업평가, 강한 협상기술 이점-

Harish H. V. 포스코경영연구원 2007 CHINDIA Plus Vol.8 No.-

Effective adsorption of lead and copper from aqueous solution by samaneasaman and banana stem

Harish, Narayana,Janardhan, Prashanth,Sangami, Sanjeev Techno-Press 2018 Advances in environmental research Vol.7 No.3

The sorption of metal ions with low-cost adsorbents plays an important role in sustainable development. In the present study, the efficacy of sugarcane bagasse, rain tree fruits (samaneasaman), banana stem and their mixtures, used as bio-sorbents, in the removal of Cu(II) and Pb(II) ions from aqueous solution is evaluated. Batch studies are conducted, and residual ions were measured using Inductively Coupled Plasma (ICP)-atomic spectrometer. Effect of pH, initial metal ion concentration, reaction time and adsorbent dosage are studied. The Pb(II) removal efficiency was observed to be 97.88%, 98.60% and 91.74% for rain tree fruits, banana stem and a mixture of adsorbents respectively. The highest Cu(II) ion removal was observed for sugarcane bagasse sorbent with an efficiency of 82.10% with a pH of 4.5 and a reaction time of 90 min. Finally, desorption studies were carried out to study the leaching potential of adsorbent, and it was found that the adsorbent is stable in water than the other leaching agents such as HCl, ammonium acetate, Sodium EDTA. Hence, these adsorbents can be effectively used for the removal of these heavy metals.

A novel generalized parametric directed divergence measure of intuitionistic fuzzy sets with its application

Harish Garg,Nikunj Aggarwal,Alka Tripathi 원광대학교 기초자연과학연구소 2017 ANNALS OF FUZZY MATHEMATICS AND INFORMATICS Vol.13 No.6

The theme of this work is to investigate a new generalized parametric directed divergence measure for intuitionistic fuzzy sets. For it, the entire paper is divided into two folds. Firstly, a new measure has been presented by incorporating the idea of convex linear combinations of the degree of their membership functions. Some desirable properties of the proposed measure have been also investigated. Secondly, divergence measure based method for solving the decision making problem has been presented. A ranking of the different attributes is based on the proposed generalized divergence measure and the sensitivity analysis on the ranking of the system has been done based on the decision-making parameters. An illustrative examples have been studied to show that the proposed function is more reasonable in the decision-making process than other existing functions.

Pharmacological Review of Caralluma R.Br. with Special Reference to Appetite Suppression and Anti-Obesity

Harish Chander Dutt,Surjeet Singh,Bharathi Avula,Ikhlas A. Khan,Yashbir S. Bedi 한국식품영양과학회 2012 Journal of medicinal food Vol.15 No.2

Caralluma fimbriata extract has received Generally Recognized As Safe (GRAS) status for use as a nutraceutical to combat the most serious public health concern (i.e., obesity). More than 260 species grouped under the genus Caralluma (Family Apocynaceae) are distributed in tropical Asia and Mediterranean regions of the globe. Ethnobotanically,some species have been used as traditional and modern dietary ingredients to suppress appetite. Many species of Caralluma are commonly used as traditional medicine for the treatment of rheumatism, diabetes, leprosy, paralysis, and inflammation and have antimalarial, antitrypanosomal, anti-ulcer, antioxidant, antinociceptive, and antiproliferative activities. The genus is known for compounds like pregnane glycosides, flavonoid glycoside, flavones, magastigmane glycosides, pregnane steroids,steroidal glycosides, saturated and unsaturated hydrocarbons, aromatic and nonaromatic volatile compounds, and b-sitosterol. An extract of C. fimbriata (Slimaluna, Gencor Nutrients, Anaheim, CA, USA) is used as an anti-obesity agent and appetite suppressor. It is also seen that the pregnane glycosides isolated and identified from African Hoodia are reported as anti-obesity and appetite-suppressant compounds. On reviewing the studies undertaken on the chemistry, pharmacology, and therapeutic potential of Caralluma, it is concluded that the genus is also composed of pregnane glycosides as one of the major constituents. Availability of pregnane glycosides in Caralluma is an indication of the appetite-suppressant property of this genus. This coupled with the GRAS status of the extract of C. fimbriata has opened the possibility of developing an anti-obesity/appetite-suppressant product from other species of Caralluma. The main objective of this article is to review the studies undertaken on the plant in light of further research for anti-obesity drugs and nutraceuticals from species of Caralluma.

Review of functional materials for potential use as wearable infection sensors in limb prostheses

Harish Devaraj,Kean C. Aw,Andrew J. McDaid 대한의용생체공학회 2020 Biomedical Engineering Letters (BMEL) Vol.10 No.1

The fundamental goal of prosthesis is to achieve optimal levels of performance and enhance the quality of life of amputees. Socket type prostheses have been widely employed despite their known drawbacks. More recently, the advent of osseointegratedprostheses have demonstrated potential to be a better alternative to socket prosthesis eliminating most of thedrawbacks of the latter. However, both socket and osseointegrated limb prostheses are prone to superfi cial infections duringuse. Infection prone skin lesions from frictional rubbing of the socket against the soft tissue are a known problem of sockettype prosthesis. Osseointegration, on the other hand, results in an open wound at the implant-stump interface. The integrationof infection sensors in prostheses to detect and prevent infections is proposed to enhance quality of life of amputees. Pathogenic volatiles having been identifi ed to be a potent stimulus, this paper reviews the current techniques in the fi eldof infection sensing, specifi cally focusing on identifying portable and fl exible sensors with potential to be integrated intoprosthesis designs. Various sensor architectures including but not limited to sensors fabricated from conducting polymers,carbon polymer composites, metal oxide semiconductors, metal organic frameworks, hydrogels and synthetic oligomersare reviewed. The challenges and their potential integration pathways that can enhance the possibilities of integrating thesesensors into prosthesis designs are analysed.

Preparation and Characterization of Molecular Sieving Carbon by Methane and Benzene Cracking over Activated Carbon Spheres

Harish Chandra Joshi,Rajesh Kumar,Rohitashaw Kumar Singh,Darshan Lal 한국탄소학회 2007 Carbon Letters Vol.8 No.1

Molecular sieving carbon (MSC) for separating O2-N2 and CO2-CH4 has been prepared through chemical vapor deposition (CVD) of methane and benzene on activated carbon spheres (ACS) derived from polystyrene sulfonate beads. The validity of the material for assessment of molecular sieving behavior for O2-N2 and CO2-CH4 pair of gases was assessed by the kinetic adsorption of the corresponding gases at 25℃. It was observed that methane cracking on ACS lead to deposition of carbon mostly in whole length of pores rather than in pore entrance, resulting in a reduction in adsorption capacity. MSC showing good selectivity for CO2-CH4 and O2-N2 separation was obtained through benzene cracking on ACS with benzene entrantment of 0.40×10-4 g/ml at cracking temperature of 725℃ for a period of 90 minutes resulting in a selectivity of 3.31:1.00 for O2-N2 and 8.00:1.00 for CO2-CH4 pair of gases respectively.

Effect of diethyl ether and Al2O3 nano additives in diesel-biodiesel-ethanol blends: Performance, combustion and emission characteristics

Harish Venu,Venkataramanan Madhavan 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.1

The present experimental work is focused on improving the performance and emission characteristics of biofuel blend (diesel (40 %)-biodiesel (40 %)-ethanol (20 %)) (denoted as BE). Comparative analysis was done for addition of Diethyl ether (DEE) and alumina nanoparticle (Al 2 O 3 ) at various concentrations. The test fuels used are BE, BE with 25 ppm Al 2 O 3 (denoted as BN-1), BE with 50 ppm Al 2 O 3(denoted as BN-2), BE with 5 % DEE (denoted as BE-1) and BE with 10 % DEE (denoted as BE-2). Experimental results indicate that, DEE addition in BE results in increased HC (Hydrocarbon), CO (Carbon monoxide), CO 2 (Carbon dioxide) and BSFC (Brake specific fuel consumption) with lowered NOx (Oxides of nitrogen) and smoke emission. This is attributed to high latent heat evaporation of mixture and Low temperature combustion (LTC). Al 2 O 3 addition in BE resulted in increase in NOx and smoke with lowered HC, CO, CO 2and BSFC. This could be attributed to enhanced surface area to volume ratio of mixture during rapid combustion process, higher catalytic combustion and reduced evaporation. At higher engine loads, the peak pressure of BE-1 is highest and that of BE-2 is lowest. Peak heat release rate of BE is highest and BN-1 is lowest. BE blends with additives (Al 2 O 3 and DEE) resulted in higher Particulate matter (PM) formation, however BN-1 blend showed lowered PM at engine loads of 75 % and 100 %. Overall, BE-1 and BN-1 reflects better engine performance, combustion and emission characteristics.

Effect of nano additives (titanium and zirconium oxides) and diethyl ether on biodiesel-ethanol fuelled CI engine

Harish Venu,Venkataramanan Madhavan 대한기계학회 2016 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.30 No.5

The present work is dedicated to the comparative experimental study of biodiesel-ethanol blends in a compression ignition engine using TiO 2 (Titanium oxide) nanoparticle, ZrO 2 (Zirconium oxide) nanoparticle and DEE (Diethyl ether) additives. The test fuels used are a blend of biodiesel (80%) -ethanol (20%) (denoted as BE), a blend of BE with 25ppm Titanium oxide nanoparticle (denoted as BE-Ti), a blend of BE with 25ppm Zirconium oxide nanoparticle (denoted as BE-Zr) and a blend of BE with 50 ml Diethyl ether (denoted as BEDEE). Addition of nanoparticles increases the oxidation rate, reduces the light-off temperature and creates large contact surface area with the base fuel thereby enhancing the combustion with minimal emissions. Experimental results shown that addition of Titanium nanoparticles increased NOx, HC and smoke with lowered BSFC and CO. Whereas addition of Zirconium nanoparticles increases BSFC and HC emissions with lowered CO, CO 2 and smoke emissions in comparison with BE blends. DEE addition to BE blends improved the heat release rate and increased HC, CO emissions were observed with lowered BSFC, NOx and smoke. Simultaneous reduction of NOx and smoke indicates the effect of DEE on Low temperature combustion (LTC).

Evaluation of aflatoxin contamination in crude medicinal plants used for the preparation of herbal medicine

Harish Chandra,Pragati Kumari,Saurabh Yadav 경희대학교 융합한의과학연구소 2019 Oriental Pharmacy and Experimental Medicine Vol.19 No.2

The medical focus is now on phytofoods, drugs and the consumption of medicinal plants is expanding worldwide. Safety and quality of herbal preparations is of great concern. Quality determines reproducible efficacy of herbal drugs and also safety is a concern both for public and health authorities in many countries specially developing ones. The reason attributed is that many contaminants and microbes that may cause quality deterioration and directly harm to the consumers, find entry in the crude herbal materials during collection and storage. The safety of these products is partially compromised due to the microbial presence, especially toxigenic fungi. The present study was designed to investigate the microbiological quality after storage of locally sold raw medicinal plants that were supplied to different pharma units involved in the preparation of herbal and various formulations of ayurvedic drugs. Twenty samples of raw medicinal plants were stored at room temperature for a year and subjected to microbiological evaluation and found that most of the samples loaded with bacterial and fungal contents, do not comply with the FDA regulations. The presence of aflatoxin gave signals of aflatoxin producing fungi i.e. A. flavus and A. parasiticus. So, there is an urgent need of making strategy to control the microbes during pre-harvest and post-harvest procedures. This study is an attempt to emphasize the need for consistent quality assessment of crude herbal drugs for safe therapeutic products suitable for human beings. Our findings may help in instituting public health standards towards production and safety of herbal drugs worldwide.

Effect of clay as deleterious material on properties of normal-strength concrete

Harish R. Choudhary,Saha Dauji,Arham Siddiqui 아시아콘크리트학회 2020 Journal of Asian Concrete Federation Vol.6 No.1

Sustainability concerns prompted use of crushed aggregates in concrete, wherein deleterious materials might get inadvertently included. Some deleterious materials are allowed up to limiting values by most standards, which, however, are silent about the quantification of their effects on properties of concrete – which would be site specific. For an important Indian infrastructure, this study quantifies effects of clay fines as deleterious material in concrete, on workability (slump) and strength (cube compression; split tensile; flexural tensile tests) around the limit (1% of fine aggregates by weight) stipulated by the Indian standard. The novelty of the study is that, contrary to the literature in this domain, the effects are studied without alteration of the mix proportions – a different practical scenario. The limit of clay fines in concrete allowed by Indian standard was found to be adequate considering strength parameters, but for maintaining target workability, the limit would be revised to 0.5% of the fine aggregates. Generally, the variations of concrete properties with the increasing clay fines were: (1) the workability and split tensile strength reduced monotonically, in non-linear fashion; (2) compressive strength (beyond 7 days) and the flexural tensile strength (modulus of rupture) reduced monotonically in linear manner.