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One-Step One Chemical Synthesis Process of Graphene from Rice Husk for Energy Storage Applications

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Graphene 2017年第3期6卷 61-71页

作者： Pushpendra singh Jitendra Bahadur Kaushik pal Centre of Nanotechnology Indian Institute of Technology Roorkee India Department of Mechanical and Industrial Engineering Indian Institute of Technology Roorkee India

Few layer graphene was synthesized using rice husk ash (RHA) and potassium hydroxide (KOH). This methodology demonstrates the utility of RHA as carbon source for graphene synthesis and as a protective barrier against oxidation of parent rice husk and KOH mixture. Oxidation may occur during synthesis process due to high temperature annealing of RHA and KOH mixture. Electrochemical characterization showed decent capacitance value 86 F·g-1 at 500 mV·s-1. XRD and Raman spectroscopy analysis confirmed the presence of graphitic structure. Transmission electron microscopy visually confirmed presence of few layer graphene. Novelty of this synthesis technique can be described as one-pot, one chemical synthesis technique. Use of natural precursor makes this technique highly cost effective for large scale production.

关键词： Rice Husk Graphene Silicon Dioxide Cyclic Voltammetry

Glimpses of the Lichen Flora of Achanakmar-Amarkantak Biosphere Reserve in Central India

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American Journal of Plant Sciences 2012年第6期3卷 697-708页

作者： Achuta Nand Shukla Krishna pal singh Botanical Survey of India Central Regional Centre Alla-habad India. Botanical Survey of India Northern Regional Centre Dehradun India

The present paper enumerates an account of the lichen flora in Achanakmar-Amarkantak Biosphere Reserve located in Central India which comprises 78 species belonging to 25 genera under nine families. Of these, twenty two species have been reported for the first time from Central India. All the species are enumerated with their correct original citation, basionyms if any, their places of occurrence in the reserve area, distributional range and exsiccata have been provided.

关键词： Lichen Contributions Achanakmar-Amarkantak Central India

A Combination of Antigen Retrieval Methods Significantly Enhances the Unmasking of Tedious Antigens of Lymphangiogenesis and Angiogenesis in Canine Mammary Tumour

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Journal of Biosciences and Medicines 2017年第12期5卷 44-55页

作者： Parmeet pal singh Naresh Kumar Sood Department of Veterinary Pathology College of Veterinary Science Guru Angad Dev Veterinary and Animal Sciences University Ludhiana India

The use of immunohistochemical techniques has enhanced the diagnostic intensities in pathology. The sensitivity and specificity of any immunohistochemical protocol mainly depends on the ability to unmask antigen from formalin fixed tissue. Various combinations of antigen retrieval protocols have been used to unmask antigen efficiently but none has been established as a flawless one. These protocols either have one or the other lacunae, lacking repeatability under same conditions. In our study, we tried to develop a standardized immunohistochemical protocol for the identification of blood and lymphatic vessels in tissue sections of canine mammary tumour (CMT) using recently identified markers. The combined effects of antigen retrieval (AR) methods including pH shock by Heat-induced epitope retrieval (HIER) and Protease-induced epitope retrieval (PIER) were found highly effective in retrieval of tedious antigens of lymphangiogenesis and angiogenesis. The use of combined antigen retrieval technique for the unmasking of antigens from over fixed, old formalin fixed paraffin embedded (FFPE) canine mammary tumour sections resulted in efficient unmasking of epitopes when compared with the individual antigen retrieval methods.

关键词： Angiogenesis Antigen Retrieval Canine Mammary Tumour Immunohistochemistry Lymphangiogenesis

Recognition of newspaper printed in Gurumukhi script

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Journal of Central South University 2019年第9期26卷 2495-2503页

作者： Rupinder pal Kaur Manish Kumar Jindal Munish Kumar Post Graduate Department of Computer Science Guru Nanak College for GirlsSri Muktsar SahibPunjabIndia Department of Computer Science&Applications Panjab University Regional CentreSri Muktsar SahibPunjabIndia Department of Computational Sciences Maharaja Ranjit Singh Punjab Technical UniversityBathindaPunjabIndia

In this work,a system for recognition of newspaper printed in Gurumukhi script is *** feature extraction techniques,namely,zoning features,diagonal features,parabola curve fitting based features,and power curve fitting based features are considered for extracting the statistical properties of the characters printed in the *** combinations of these features are also applied to improve the recognition *** recognition,four classification techniques,namely,k-NN,linear-SVM,decision tree,and random forest are used.A database for the experiments is collected from three major Gurumukhi script newspapers which are Ajit,Jagbani and Punjabi *** 5-fold cross validation and random forest classifier,a recognition accuracy of 96.19%with a combination of zoning features,diagonal features and parabola curve fitting based features has been reported.A recognition accuracy of 95.21%with a partitioning strategy of data set(70%data as training data and remaining 30%data as testing data)has been achieved.

关键词： newspaper recognition feature extraction classification Gurumukhi script random forest

The Economics of Reorganizing Otolaryngology Out-Patient Services for COVID-19 Pandemic in Low- and Middle-Income Countries

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International Journal of Otolaryngology and Head & Neck Surgery 2020年第5期9卷 180-184页

作者： Ravinder singh Nagi Satinder pal singh Prahlad Duggal Department of Otolaryngology & Head Neck Surgery Government Medical College Amritsar Punjab India Chief ENT & Head Neck Surgeon Swift Hospital Amritsar Punjab India

The Coronavirus 2019 (COVID-19) pandemic has widespread implications for clinical practice of otolaryngologists in clinics and hospitals. With various reports of otolaryngology practitioners catching infection, a profound structural reorganization of ENT services in the clinic is mandatory for protecting both patients and healthcare workers. The present study focused on quantifying the cost involved in reorganizing the otolaryngology out-patient services in a third world country during the ongoing Covid-19 pandemic. Though the pandemic has increased the cost of running of an otolaryngology practice world over, the impact is huge in India as penetration of health insurance/social security is minimal. As out of pocket expenditure forms a significant proportion of healthcare spending by majority in India, any transfer of additional cost incurred because of Covid-19 pandemic to the patient will burn a bigger hole in their pocket.

关键词： COVID-19 Pandemic Otolaryngology Out-Patients Economics Low- and Middle-Income Countries

Pichia as yeast cell factory for production of industrially important bio-products:Current trends,challenges,and future prospects

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生物质资源与工程(英文) 2023年第2期8卷 108-124页

作者： Akansha Shrivastava Mamta pal Rakesh Kumar Sharma Department of Biosciences Manipal University JaipurJaipur 303007India Sardar Swaran singh National Institute of Bio-Energy Jalandhar 144601India

Yeast has been used as a cell factory for thousands of years to produce a wide variety of com-plex biofuels,bioproducts,biochemicals,food ingredients,and *** a variety of biotechnological production hosts,a few specific genera of yeast have proven *** developments in metabolic engineering and synthetic biology provide a workable long-term supply solution for these *** this review,we have covered recent advances in the design of yeast cell factories for the synthesis of terpenoids,alkaloids,phenylpropanoids,and other natural chemicals,primarily focusing on Pichia ***-edge solutions involving genetic and process engineering have also been ***,the review summarized recent advancements and challenges in synthetic and systems biology,as well as initiatives in metabolic engineering aimed at commercializing non-conventional yeasts like *** processes used in non-traditional yeasts to produce enzymes,therapeutic proteins,lipids,and metabolic products for industrial applications were thoroughly elaborated.

关键词： Natural product Pichia Non-conventional yeast Biosynthesis System biology Synthetic biology

Analysis of macro and micro nutrients in some Indian medicinal herbs grown in Jaunpur (u.p.) soil

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Natural Science 2011年第7期3卷 551-555页

作者： Arun Kumar Ram Prakash singh Narendra pal singh 不详

Concept of trace elements being “the Inorganic Switches” has evolved during the last several decades. Ayurveda, the traditional Indian medicinal system also emphasises the importance of minor and trace elements in human health and disease. To evaluate elemental contents of some commonly used as health promoter and fever, 5 medicine herbs (stems) namely Guduchi, Vach, Mulahati, Joytishmati and Vidhara have been analyzed for four minor (Na, K, Mg and Ca) and eight trace elements (Cr, Mn, Fe, Co, Ni, Cu, Zn and Cd) by atomic absorption spectrometry and flame photometry. Their accuracy was measured by replicate analyses. In general, elemental contents were found in varying amounts with large range. It is observed that many of medicinal herbs are enriched in one or more elements. Since these elements are bioavailable in natural form, probably in combination with organic constituents, these are likely to be easily assimilated by human bodies. Besides them, two toxic elements Ni and Cd were also found in insignificant amounts as these are likely to have originated from environmental contamination.

关键词： Sample Used as Health Promoter and Fever Medicinal Herbs in Jaunpur

Analysis of nutritional elements in Indian medicinal herbs used to cure general weakness

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Natural Science 2012年第4期4卷 211-215页

作者： Arun Kumar Ram Prakash singh Narendra pal singh Department of Chemistry Hindu P.G. College Zamania Ghazipur India Department of Chemistry Hindu P.G. College Zamania Ghazipur India Institute of Pharmacy V.B.S. Purvanchal University Jaunpur India

Concept of trace elements being “the Inorganic Switches” has evolved during last several decades. Ayurveda, the traditional Indian medicinal system also emphasises the importance of minor and trace elements in human health and disease. To evaluate elemental contents of some commonly used to cure general weakness, 3 medicine herbs namely Beezband (seeds), Gok-shur (fruit) and Talmakhana (seeds) have been analyzed for four minor (Na, K, Mg and Ca) and eight trace elements (Cr, Mn, Fe, Co, Ni, Cu, Zn and Cd) by atomic absorption spectrometry and flame photometry. Their accuracy was measured by replicate analyses. In general, elemental contents were found in varying amounts with large range. It is observed that many of medicinal herbs are enriched in one or more elements. Since these elements are bioavailable in natural form, probably in combination with organic constituents, these are likely to be easily assimilated by human Bodies. Besides them, two toxic elements Ni and Cd were also found in insignificant amounts as these are likely to have originated from environmental contamination.

关键词： Nutritional Elements Herbs for General Problem

Secure Spread-Spectrum Watermarking for Telemedicine Applications

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Journal of Information Security 2011年第2期2卷 91-98页

作者： Basant Kumar Harsh Vikram singh Surya pal singh Anand Mohan Motilal Nehru National Institute of Technology Kamla Nehru Institute of Technology Institute of Technology Banaras Hindu University

This paper presents a secure spread-spectrum watermarking algorithm for digital images in discrete wavelet transform (DWT) domain. The algorithm is applied for embedding watermarks like patient identification /source identification or doctors signature in binary image format into host digital radiological image for potential telemedicine applications. Performance of the algorithm is analysed by varying the gain factor, subband decomposition levels, size of watermark, wavelet filters and medical image modalities. Simulation results show that the proposed method achieves higher security and robustness against various attacks.

关键词： Watermarking Spread-Spectrum Discrete Wavelet Transform Telemedicine