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Antibiotic resistome of : molecular determinants for the emergence of drug resistance
《医学前沿(英文)》 2021年 第15卷 第5期 页码 693-703 doi: 10.1007/s11684-020-0777-6
关键词: S. typhi antibiotic resistance mechanism resistome identification methods
Exergy analysis and simulation of a 30MW cogeneration cycle
Nikhil Dev, Samsher, S. S. Kachhwaha, Rajesh Attri
《机械工程前沿(英文)》 2013年 第8卷 第2期 页码 169-180 doi: 10.1007/s11465-013-0263-9
Cogeneration cycle is an efficient mean to recover the waste heat from the flue gases coming out of gas turbine. With the help of computer simulation, design parameters may be selected for the best performance of cogeneration cycle. In the present work a program is executed in software EES on the basis of mathematical modelling described in paper to study cogeneration cycle performance for different parameters. Results obtained are compared with the results available in literature and are found in good agreement with them. Real gas and water properties are inbuilt in the software. Results show that enthalpy of air entering the combustion chamber is higher than that of the flue gases at combustion chamber outlet. For different operative conditions, energy and exergy efficiencies follow similar trends; although, exergy efficiency values are always lower than the corresponding energy efficiency ones. From the results it is found that turbine outlet temperature (TIT) of 524°C is uniquely suited to efficient cogeneration cycle because it enables the transfer of heat from exhaust gas to the steam cycle to take place over a minimal temperature difference. This temperature range results in the maximum thermodynamic availability while operating with highest temperature and highest efficiency cogeneration cycle. Effect of cycle pressure ratio (CR), inlet air temperature (IAT) and water pressure at heat recovery steam generator (HRSG) inlet on the 30 MW cogeneration cycle is also studied.
关键词: Cogeneration cycle air compressor HRSG gas turbine regenerator CR IAT
香蕉假茎作为吸附剂用于水溶液中铅离子去除的条件优化、动力学与吸附平衡研究 Article
Shridhar S. Bagali, Bychapur S. Gowrishankar, Aashis S. Roy
《工程(英文)》 2017年 第3卷 第3期 页码 409-415 doi: 10.1016/J.ENG.2017.03.024
香蕉假茎粉末等天然吸附剂对于去除废水中的重金属元素具有非常重要的作用。现有的去除重金属元素的常规方法难以满足水资源循环和化学工业的需求。本文论证了利用天然物质处理废水的可能性。利用环境扫描电子显微镜(ESEM) 和傅里叶变换红外(FTIR) 光谱学分析方法,研究了香蕉假茎粉末吸附铅离子前后的变化。实验采用批处理方法研究了水溶液中铅离子去除的效果。通过改变初始pH 值、吸附剂用量、初始铅离子浓度、吸附时间等参数,研究了吸附动力学的影响。结果表明,在水溶液pH 值为5.5 时,香蕉假茎粉末达到零电荷点。采用吸附等温线和动力学模型分析实验数据,采用朗缪尔吸附等温式拟合铅离子在香蕉假茎粉末表面的吸附作用。实验表明,香蕉假茎粉末对铅离子的吸附量为34.21 mg·g−1,与拟二级动力学模型相匹配。此外,采用响应面分析法确定了铅离子吸附的最佳条件,铅离子的去除率高达89%。
Automated retrofit targeting of heat exchanger networks
Walmsley, Nathan S. Lal, Petar S. Varbanov, Jiří J. Klemeš
《化学科学与工程前沿(英文)》 2018年 第12卷 第4期 页码 630-642 doi: 10.1007/s11705-018-1747-2
The aim of this paper is to develop a novel heat exchanger network (HEN) retrofit method based on a new automated retrofit targeting (ART) algorithm. ART uses the heat surplus-deficit table (HSDT) in combination with the Bridge Retrofit concepts to generate retrofit bridges option, from which a retrofit design may be formulated. The HSDT is a tabular tool that shows potential for improved re-integration of heat source and sink streams within a HEN. Using the HSDT, retrofit bridges—a set of modifications that links a cooler to a heater to save energy—may be identified, quantified, and compared. The novel retrofit method including the ART algorithm has been successfully implemented in Microsoft ExcelTM to enable analysis of large-scale HENs. A refinery case study with 27 streams and 46 existing heat exchangers demonstrated the retrofit method’s potential. For the case study, the ART algorithm found 68903 feasible unique retrofit opportunities with a minimum 400 kW·unit−1 threshold for heat recovery divided by the number of new units. The most promising retrofit project required 3 new heat exchanger units to achieve a heat savings of 4.24 MW with a favorable annualised profit and a reasonable payback period.
关键词: process retrofit pinch analysis heat exchanger network heat recovery
Techno-economic evaluation of wind energy in southwest Nigeria
Muyiwa S. ADARAMOLA, Olarenwaju M. OYEWOLA, Olayinka S. OHUNAKIN, Rufus R. DINRIFO
《能源前沿(英文)》 2012年 第6卷 第4期 页码 366-378 doi: 10.1007/s11708-012-0205-y
关键词: mean wind speed Weibull distributions wind turbine techno-economic analysis southwest geopolitical region Nigeria
Estimation of power in low velocity vertical axis wind turbine
Sampath S. S.,Sawan SHETTY,Chithirai Pon Selvan M.
《机械工程前沿(英文)》 2015年 第10卷 第2期 页码 211-218 doi: 10.1007/s11465-015-0338-x
The present work involves in the construction of a vertical axis wind turbine and the determination of power. Various different types of turbine blades are considered and the optimum blade is selected. Mechanical components of the entire setup are built to obtain maximum rotation per minute. The mechanical energy is converted into the electrical energy by coupling coaxially between the shaft and the generator. This setup produces sufficient power for consumption of household purposes which is economic and easily available.
Dmitry S. STREBKOV
《农业科学与工程前沿(英文)》 2015年 第2卷 第1期 页码 1-12 doi: 10.15302/J-FASE-2015052
关键词: fossil fuels biofuels food security electric power solar energy
Orderly decorated nanostructural photoelectrodes with uniform spherical TiO
Bakhshayesh,S. S. Azadfar
《化学科学与工程前沿(英文)》 2015年 第9卷 第4期 页码 532-540 doi: 10.1007/s11705-015-1549-8
关键词: dye-sensitized solar cell uniform particles TiO2 gel process light harvesting
S. SAMANTA, S. S. NANTHAKUMAR, R. K. ANNABATTULA, X. ZHUANG
《结构与土木工程前沿(英文)》 2019年 第13卷 第3期 页码 542-556 doi: 10.1007/s11709-018-0496-0
关键词: piezoelectricity impedance curve mode shapes inverse problem flaw detection curve shifting
Microplastics pollution and reduction strategies
Wei-Min Wu,Jun Yang,Craig S. Criddle
《环境科学与工程前沿(英文)》 2017年 第11卷 第1期 doi: 10.1007/s11783-017-0897-7
关键词: microplastics plastic microbeads environmental pollution biodegradation
Soil health—useful terminology for communication or meaningless concept? Or both?
David S. POWLSON
《农业科学与工程前沿(英文)》 2020年 第7卷 第3期 页码 246-250 doi: 10.15302/J-FASE-2020326
Effect of lime on speciation of heavy metals during composting of water hyacinth
Jiwan SINGH,Ajay S. KALAMDHAD
《环境科学与工程前沿(英文)》 2016年 第10卷 第1期 页码 93-102 doi: 10.1007/s11783-014-0704-7
关键词: composting lime heavy metals bioavailability factor speciation
Influence of loading ratio on flat slab connections at elevated temperature: A numerical study
S. AL-HAMD, Martin GILLIE, Safaa Adnan MOHAMAD, Lee S. CUNNINGHAM
《结构与土木工程前沿(英文)》 2020年 第14卷 第3期 页码 664-674 doi: 10.1007/s11709-020-0620-9
关键词: concrete finite elements fire load-induced thermal strain punching shear
Cancer and the environment: Filling knowledge gaps together
Linda S. BIRNBAUM PhD, DABT, ATS,
《医学前沿(英文)》 2010年 第4卷 第2期 页码 131-133 doi: 10.1007/s11684-010-0044-3
关键词: environment genes environmental exposure environmental agent persistence chemicals inert ingredients low dose
Plated contacts for solar cells with superior adhesion strength to screen printed solar cells
CHEN,S. WANG,A. WENHAM,Z. SHI,T. YOUNG,J. JI,M. EDWARDS,A. SUGIANTO,L. MAI,S. WENHAM,C. CHONG
《能源前沿(英文)》 2017年 第11卷 第1期 页码 72-77 doi: 10.1007/s11708-016-0428-4
关键词: light-induced plating metal adhesion strength copper plating metal contacts solar cell durability silicon solar cells
标题 作者 时间 类型 操作
Exergy analysis and simulation of a 30MW cogeneration cycle
Nikhil Dev, Samsher, S. S. Kachhwaha, Rajesh Attri
期刊论文
香蕉假茎作为吸附剂用于水溶液中铅离子去除的条件优化、动力学与吸附平衡研究
Shridhar S. Bagali, Bychapur S. Gowrishankar, Aashis S. Roy
期刊论文
Automated retrofit targeting of heat exchanger networks
Walmsley, Nathan S. Lal, Petar S. Varbanov, Jiří J. Klemeš
期刊论文
Techno-economic evaluation of wind energy in southwest Nigeria
Muyiwa S. ADARAMOLA, Olarenwaju M. OYEWOLA, Olayinka S. OHUNAKIN, Rufus R. DINRIFO
期刊论文
Estimation of power in low velocity vertical axis wind turbine
Sampath S. S.,Sawan SHETTY,Chithirai Pon Selvan M.
期刊论文
Orderly decorated nanostructural photoelectrodes with uniform spherical TiO
Bakhshayesh,S. S. Azadfar
期刊论文
Detection of void and metallic inclusion in 2D piezoelectric cantilever beam using impedance measurements
S. SAMANTA, S. S. NANTHAKUMAR, R. K. ANNABATTULA, X. ZHUANG
期刊论文
Soil health—useful terminology for communication or meaningless concept? Or both?
David S. POWLSON
期刊论文
Effect of lime on speciation of heavy metals during composting of water hyacinth
Jiwan SINGH,Ajay S. KALAMDHAD
期刊论文
Influence of loading ratio on flat slab connections at elevated temperature: A numerical study
S. AL-HAMD, Martin GILLIE, Safaa Adnan MOHAMAD, Lee S. CUNNINGHAM
期刊论文