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排序方式: 共有148条查询结果,搜索用时 43 毫秒
1.
Moges Abebe Barik Chitta Ranjan Purohit Sukumar Goud Vaibhav V. 《Food science and biotechnology》2021,30(12):1555-1569
Food Science and Biotechnology - The physico-chemical, polyphenols, antioxidant and antibacterial properties of berries and mixture of male and female leaves of Hippophae salicifolia were... 相似文献
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T. Gassmann B. Arambhadiya B. Beaumont U.K. Baruah T. Bonicelli C. Darbos D. Purohit H. Decamps F. Albajar F. Gandini M. Henderson F. Kazarian P.U. Lamalle T. Omori D. Parmar A. Patel D. Rathi N.P. Singh 《Fusion Engineering and Design》2011,86(6-8):884-887
The RF heating and current drive (H&CD) systems to be installed for the ITER fusion machine are the electron cyclotron (EC), ion cyclotron (IC) and, although not in the first phase of the project, lower hybrid (LH). These systems require high voltage, high current power supplies (HVPS) in CW operation.These HVPS should deliver around 50 MW electrical power to each of the RF H&CD systems with stringent requirements in terms of accuracy, voltage ripple, response time, turn off time and fault energy. The PSM (Pulse Step Modulation) technology has demonstrated over the past 20 years its ability to fulfill these requirements in many industrial facilities and other fusion reactors and has therefore been chosen as reference design for the IC and EC HVPS systems.This paper describes the technical specifications, including interfaces, the resulting constraints on the design, the conceptual design proposed for ITER EC and IC HVPS systems and the current status. 相似文献
4.
Effect of Operational Parameters on Determination of Oxidative Stability Measured by Rancimat Method
Nilkanth Pawar Akash Purohit Kamal Gandhi R.R.B. Singh 《International Journal of Food Properties》2013,16(9):2082-2088
Operational parameters of Rancimat, including sample weight (3, 6, 9 g), airflow rate (10, 15, 20 L/h) and temperature (110, 120, 130°C) were evaluated to determine their effects on oxidative stability index, temperature coefficient, Q10 number, and shelf life prediction of ghee (anhydrous milk fat). These parameters showed statistically significant effects on the oxidative stability index. It was observed that when the sample weight and airflow rate at a given temperature were at saturated air condition, the oxidative stability indexes showed no significant differences (p < 0). As the temperature increased, oxidative stability index decreased and average coefficient of variation was minimal at 120°C. The conditions under which the ghee sample was saturated with air and had a relatively lower oxidative stability index, was with sample weight of 6 g, temperature at 120°C and an airflow rate of 15 L/h. Temperature coefficient and Q10 number were independent of sample weight and air flow rate, however, they had a significant effect on shelf life prediction of ghee. 相似文献
5.
Narayan Purohit 《世界电子元器件》2012,(8):34-36
汽车工业正在寻找保护驾驶员和乘客安全的创新方法,从一些小幅度地增强安全性能开始,最终目标是创建完全的自主型汽车。汽车工业在防抱死制动系统、电子稳定性控制、多个安全气囊以及最近出现的后视摄像头系统等安全功能应用方面出现了高速增长。 相似文献
6.
G. Purohit Vinod PatidarK.K. Sud 《Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms》2011,269(8):745-751
We report the distorted wave Born approximation results of triple differential cross section of Ar (3p) by positron and electron impact. We compare the results of our calculations with the recent available experimental and theoretical results. We also provide a comparison of our positron impact ionization results with the electron impact ionization results to understand the effect of projectile charge on the projectile-target interaction. 相似文献
7.
In gyrotron, there is the chance of generation and excitation of unwanted RF modes (parasite oscillations). These modes may
interact with electron beam and consequently degrade the beam quality. This paper presents the improved design of the beam
tunnel to reduce the parasite oscillations and the effect of beam tunnel geometry on the electron beam parameters. The design
optimization of the beam tunnel has been done with the help of 3-D simulation software CST-Microwave Studio and the effect
of beam tunnel geometry on the electron beam parameters has been analyzed by EGUN code. 相似文献
8.
The Jawaharlal Nehru National Solar Mission (JNNSM) of the recently announced National Action Plan on Climate Change (NAPCC) by the Government of India aims to promote the development and use of solar energy for power generation and other uses with the ultimate objective of making solar competitive with fossil-based energy options. The plan includes specific goals to (a) create an enabling policy framework for the deployment of 20,000 MW of solar power by 2022; (b) create favourable conditions for solar manufacturing capability, particularly solar thermal for indigenous production and market leadership; (c) promote programmes for off grid applications, reaching 1000 MW by 2017 and 2000 MW by 2022, (d) achieve 15 million m2 solar thermal collector area by 2017 and 20 million by 2022, and (e) deploy 20 million solar lighting systems for rural areas by 2022. The installed capacity of grid interactive solar power projects were 6 MW until October 2009 that is far below from their respective potential. 相似文献
9.
Mixed microbial cultures (MMCs) based on 11 isolates belonging to Bacillus spp. (Firmicutes), Bordetella avium, Enterobacter aerogenes and Proteus mirabilis (Proteobacteria) were employed to produce hydrogen (H2) under dark fermentative conditions. Under daily fed culture conditions (hydraulic retention time of 2 days), MMC6 and MMC4, immobilized on ligno-cellulosic wastes – banana leaves and coconut coir evolved 300–330 mL H2/day. Here, H2 constituted 58–62% of the total biogas evolved. It amounted to a H2 yield of 1.54–1.65 mol/mol glucose utilized over a period of 60 days of fermentation. The involvement of various Bacillus spp. – Bacillus sp., Bacillus cereus, Bacillus megaterium, Bacillus pumilus and Bacillus thuringiensis as components of the defined MMCs for H2 production has been reported here for the first time. 相似文献
10.
The Clean Development Mechanism (CDM) provides industrialized countries with an incentive to invest in emission reduction projects in developing countries to achieve a reduction in CO2 emissions at lowest cost that also promotes sustainable development in the host country. Solar water heating systems (SWHs) could be of interest under the CDM because they directly displace greenhouse gas emissions while contributing to sustainable development by reducing local pollutants. However, there are only three solar water heating projects under the CDM so far. An attempt has been made to estimate the CDM potential of SWHs in India in this study. Our estimates indicate that there is a vast theoretical potential of CO2 mitigation by the use of SWHs in India. The annual CER potential of SWHs in India could theoretically reach 27 million tonnes. Under more realistic assumptions about diffusion of SWHs based on past experiences with the government-run programmes, annual CER volumes by 2012 could reach 4–9 million and 15–22 million by 2020. This would require that the government sets the subsidy level for SWHs at a level that allows them to become viable with the CER revenue. From a macro-economic point of view this makes sense if the sustainability benefits are deemed sufficiently high to warrant promotion of this project type. 相似文献