bose debajyoti (111 risultati)

Condizione: as new. Wie neu/Like new.

Condizione: New.

Condizione: New.

Condizione: New.

Paperback. Condizione: New.

Condizione: New.

Condizione: New.

Taschenbuch. Condizione: Neu. Neuware -Project Report from the year 2016 in the subject Energy Sciences, grade: 8, University of Petroleum and Energy Studies, language: English, abstract: The Indian subcontinent is blessed with an ample amount of sunlight almost all through the year. There is an urgent need of switching over to a perennial source of energy as an alternative to replace all the quickly depleting fossil fuels. There is much interest in non-conventional energy nowadays, so as to tap energy from unassuming but promising quarters like Solar, Wind and Tidal energy. Of those, tapping the heat and infra-red rays from the sun, using air and water as appropriate mediums, separately and together as a whole, is the most easiest and versatile way of energy capture.This book is concerned with the designing of an efficient solar parabolic collector to trap the solar heat in the receiver through the combination of concave mirrors. A small scale parabolic dish was fabricated with locally available material like stainless steel for the boiler, and painting it black to increase the absorption. As a matter of application of the project, a solar desalination system was integrated with the project to test the feasibility of the research. The desalination system worked successfully in conjunction with the experimental setup and a reduction in the TDS level of the feed water was observed at the condensation end. Thus, the project is feasible for cleaning or purifying the water by renewable sources. 60 pp. Englisch.

Condizione: New.

Paperback. Condizione: New.

Condizione: New. In English.

Paperback. Condizione: New.

Paperback. Condizione: Brand New. 76 pages. 8.66x5.91x0.18 inches. In Stock.

Condizione: New. pp. 72.

Taschenbuch. Condizione: Neu. Druck auf Anfrage Neuware - Printed after ordering - Project Report from the year 2014 in the subject Biology - Micro- and Molecular Biology, grade: PDF, , course: Personal Research Project, language: English, abstract: Ancient rocks and natural oils are rich with abundant and hidden information of ancient organic matters responsible for earth formation, including molecular and isotopic signatures of the organisms that existed at the time the organic matter was formed. Considering the above facts of astrobiology, research study was carried out on screening of oil indicating microorganisms from oil contaminated sites of major geo-political zones of Yobe State, Nigeria including Damaturu, Gashua, Potiskum and Nguru local Government areas. Serial dilution was performed for all soil samples collected from the oil contaminated sites of mentioned local government areas followed by culture isolation and identification techniques for bacterial samples only. Nutrient agar was used for the isolation of the bacteria from the soil samples and mixed cultures were obtained. These bacterial cultures were inoculated in petroleum in order to see their oil utilizing capability. Two types of culture showed positive results among all isolated colonies. Rhizoid shaped gram positive rods isolated from soils of Damaturu, Gashua, Potiskum and Nguru & yellow pigmented gram negative bacterial colony isolated from soils of Potiskum and Nguru showed oil utilizing ability by positive growth in the refined crude oil (Petroleum, Diesel, etc.). The oil utilizing ability of those specific bacteria shows their potentiality in detecting the presence of oil and acting as potential oil indicators in Sub-Saharan region of African Continent caring a long history of bio-geo sciences. Findings from the present research work may create an opening for encouraging the geo-biological potentials of West African Countries in astrobiological aspects.

Taschenbuch. Condizione: Neu. Druck auf Anfrage Neuware - Printed after ordering - Project Report from the year 2014 in the subject Biology - Micro- and Molecular Biology, , course: Personal Research Project, language: English, abstract: The aim of the present research work was to study a low-cost production of Lactic acid by fermentation of a non-conventional medium e.g. cheese whey, while considering milk medium as a standard using Lactococcus lactics.The effect of different process parameters such as pH of the medium, temperature, inoculums size, age of inoculums and incubation time was monitored to enhance the lactose conversion in cheese whey to lactic acid. Fermentations were performed without any pH control. The optimization of the fermentation conditions resulted in a significant decrease in fermentation time, besides an increase in lactose conversion to lactic acid. The optimized process conditions resulted in high lactose conversion to lactic acid production (0.539%) after an incubation period of 72 hrs at 37°C.The maximum lactic acid production was 0.767% which was observed when milk media (0.767%) was used as the standard fermentation medium, whereas non-conventional cheese whey medium showed 0.539% lactic acid production at pH 5.5.

Taschenbuch. Condizione: Neu. Druck auf Anfrage Neuware - Printed after ordering - Project Report from the year 2016 in the subject Energy Sciences, grade: 8, University of Petroleum and Energy Studies, language: English, abstract: The Indian subcontinent is blessed with an ample amount of sunlight almost all through the year. There is an urgent need of switching over to a perennial source of energy as an alternative to replace all the quickly depleting fossil fuels. There is much interest in non-conventional energy nowadays, so as to tap energy from unassuming but promising quarters like Solar, Wind and Tidal energy. Of those, tapping the heat and infra-red rays from the sun, using air and water as appropriate mediums, separately and together as a whole, is the most easiest and versatile way of energy capture.This book is concerned with the designing of an efficient solar parabolic collector to trap the solar heat in the receiver through the combination of concave mirrors. A small scale parabolic dish was fabricated with locally available material like stainless steel for the boiler, and painting it black to increase the absorption. As a matter of application of the project, a solar desalination system was integrated with the project to test the feasibility of the research. The desalination system worked successfully in conjunction with the experimental setup and a reduction in the TDS level of the feed water was observed at the condensation end. Thus, the project is feasible for cleaning or purifying the water by renewable sources.

Taschenbuch. Condizione: Neu. Neuware -Chitosan has received much attention as a functional biopolymer for diverse applications, especially in pharmaceutics and medicine. Chitosan is a positively charged natural biodegradable and biocompatible polymer.In this study,3 different fungal strains Aspergillus niger NCIM1045, Aspergillus oryzae NCIM645 and Mucor indicus MTCC3318 were used for the production of chitosan. The produced chitosan was characterized by determining degree of deacetylation.Chitosan nanoparticles were prepared by ionic cross-linking with tripolyphosphate (TPP). The major effect on encapsulation and release of protein (e.g. enzyme diastase) in chitosan-TPP nanoparticles was investigated in order to control the loading and release efficiency. It was noted that the chitosan loading and releasing efficiency as a nanocapsule, obtained from different fungal sources was almost near to initial enzyme activity(12011 U/ml) with a negligible loss. Based upon these initial experiments, studies were also carried out on modification of chitosan based nanocapsules incorporated with physiologically important enzymes and nutraceuticals for target delivery.Books on Demand GmbH, Überseering 33, 22297 Hamburg 68 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Cinnamon (Cinnamomum zeylanicum), is one of the highly prized fragrant spice that has been in use since biblical times for its medicinal and culinary properties.This novel spice is native to Sri Lanka but also found in many other countries. It is the bark of the tree from where aromatic essential oil (makes up 0.5% to 1% of its composition) is extracted.Cinnamon or Dalchini or Kirfa has antimicrobial, anti-clotting, anti-inflammatory, antispasmodic, diuretic, and aphrodisiac properties.In addition, cinnamon oil has astringent, antiseptic and carminative qualities. Considering the above facts our study was carried out to observe & evaluate the effect of extracts from cinnamon bark against microbial population considering both bacterial & fungal forms. Cinnamon extracts using dichloromethane, ethanol, acetone and ethyl acetate as solvents were obtained using Soxhlet apparatus and considered for tests against Escherichia coli, Staphylococcus aureus, Aspergillus niger, Penicillium notatum, Mucor indicus and Trichoderma viride. Observations showed positive results by appearance of clear zone of inhibition on cultured petri plates for bacteria and fungi in case of polar solvents.Books on Demand GmbH, Überseering 33, 22297 Hamburg 76 pp. Englisch.

Paperback. Condizione: Like New. Like New. book.

Paperback. Condizione: New. New. book.

Condizione: New.

Taschenbuch. Condizione: Neu. Potentials of Cinnamon in Microbial Control | Antimicrobial Activity of Cinnamon | Debajyoti Bose | Taschenbuch | 76 S. | Englisch | 2017 | LAP LAMBERT Academic Publishing | EAN 9783659834189 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

Taschenbuch. Condizione: Neu. Screening of Thermophiles from Rajasthan | Screening of Economically Important Thermophilic Bacteria from Soils of Rajasthan | Debajyoti Bose | Taschenbuch | 56 S. | Englisch | 2013 | LAP LAMBERT Academic Publishing | EAN 9783659383304 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

Paperback. Condizione: Brand New. 104 pages. 8.66x5.91x0.24 inches. In Stock.

Paperback. Condizione: New.

Paperback. Condizione: New.

Paperback. Condizione: Like New. LIKE NEW. SHIPS FROM MULTIPLE LOCATIONS. book.

Paperback. Condizione: Like New. Like New. book.

Taschenbuch. Condizione: Neu. Neuware -La canela (Cinnamomum zeylanicum) es una de las especias aromáticas más apreciadas que se ha utilizado desde tiempos bíblicos por sus propiedades medicinales y culinarias. Esta novedosa especia es originaria de Sri Lanka, pero también se encuentra en muchos otros países. De la corteza del árbol se extrae el aceite esencial aromático (que constituye entre el 0,5% y el 1% de su composición).La canela o Dalchini o Kirfa tiene propiedades antimicrobianas, anticoagulantes, antiinflamatorias, antiespasmódicas, diuréticas y afrodisíacas.Además, el aceite de canela tiene cualidades astringentes, antisépticas y carminativas. Teniendo en cuenta los hechos anteriores, nuestro estudio se llevó a cabo para observar y evaluar el efecto de los extractos de corteza de canela contra la población microbiana, considerando tanto las formas bacterianas como fúngicas. Se obtuvieron extractos de canela utilizando diclorometano, etanol, acetona y acetato de etilo como disolventes mediante el aparato Soxhlet y se sometieron a pruebas contra Escherichia coli, Staphylococcus aureus, Aspergillus niger, Penicillium notatum, Mucor indicus y Trichoderma viride. Las observaciones mostraron resultados positivos por la aparición de una zona clara de inhibición en placas de Petri cultivadas para bacterias y hongos en el caso de los disolventes polares.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 64 pp. Spanisch.