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Application of the invasive weed optimization algorithm to economic dispatch problems

T. JAYABARATHI, Afshin YAZDANI, V. RAMESH

Frontiers in Energy 2012, Volume 6, Issue 3,   Pages 255-259 doi: 10.1007/s11708-012-0202-1

Abstract: Some involve prohibited operating zones, transmission losses and valve point loading.

Keywords: economic dispatch (ED)     invasive weed optimization     non-convexity     prohibited operating zones (POZ)     valve    

An improved chaotic hybrid differential evolution for the short-term hydrothermal scheduling problem considering practical constraints

Tahir Nadeem MALIK,Salman ZAFAR,Saaqib HAROON

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 5,   Pages 404-417 doi: 10.1631/FITEE.1400189

Abstract: The transmission line losses, prohibited discharge zones of hydel plants, and ramp rate limits of thermal

Keywords: Valve-point effect     Prohibited discharge zones     Differential evolution     Chaotic sequences     Constraint    

Hazard potential of zones of weakness in gravity dams under impact loading conditions

Herbert LINSBAUER

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 90-97 doi: 10.1007/s11709-010-0008-3

Abstract: These zones of weakness especially on the upstream side of the dam— exposed to high water pressure (static

Keywords: dam-reservoir     earthquake     impact     cracking     fracture mechanics    

Interactive effects of high-speed rail on nodal zones in a city: exploratory study on China

Guo LIU, Kunhui YE

Frontiers of Engineering Management 2019, Volume 6, Issue 3,   Pages 327-335 doi: 10.1007/s42524-019-0051-2

Abstract: The arrival of the high-speed rail (HSR) era has accelerated the pace of urban development, but its broad socioeconomic impact remains subject to intense debates. This research aims to propose a model for measuring the impact of HSR operation on HSR stations and the surrounding areas, which this research call the HSR-based nodal zone (HNZ). The proposed model is composed of two variables (i.e., transportation situation and vitality) and three subsystems (i.e., economic, societal, and environmental). Data were collected in China through questionnaire survey. Results indicate that the effects of HSR operation on HNZ are multidimensional, transportation vitality has an intermediary role in the effects, and the effects on the physical environment are negative. This study presents an early examination of the impact of HSR operation on the HSR stations and relevant areas and contributes new evidence to academic debates on the contribution of HSR to urban development. Accordingly, urban development policies should be built on the mechanism of HSR in driving the growth of HNZ.

Keywords: high-speed rail     nodal zone     interactive effects     sustainable urbanization     China    

Identification of abnormal operating conditions and intelligent decision system

Xiuliang LI, Junjie JIANG, Hongye SU, Jian CHU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 456-462 doi: 10.1007/s11465-011-0224-0

Abstract: state” is difficult to form using the soil dug in the capsule because it can cause three abnormal operatingThese abnormal operating conditions can, in turn, trigger failure in tunneling, cutter-device damage,This present paper effectively integrates the mechanism of abnormal operating conditions and knowledge

Keywords: earth pressure balance (EPB) shield machine     soil pressure cabin     abnormal operating condition     belief rule-base    

Analyzing and quantitatively evaluating the organic matter source at different ecologic zones of tidal

GAO Jianhua, YANG Guishan, OU Weixin

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 1,   Pages 81-88 doi: 10.1007/s11783-008-0016-x

Abstract: In order to explore the effect of different ecological zones and their above plants in the organic matterLastly, the organic matter sources of different ecologic zones in tidal salt marsh are evaluated, andthe organic matter accumulations in different ecologic zones induced by their plants are also comparedamount of TOC, organic matter and TN accumulated in the flat is more than that in other ecological zones

Experimental study on influence of operating parameters on tar components from corn straw gasification

Shuai GUO, Xiao WEI, Deyong CHE, Hongpeng LIU, Baizhong SUN

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 374-383 doi: 10.1007/s11708-020-0710-3

Abstract: Gasification is a promising approach for converting solid fuel sources, including renewable ones like biomass, for use. The main problem in biomass gasification is the formation of condensable tars, including polycyclic aromatic hydrocarbons (PAHs). This paper investigated the conversion of tar components during corn straw gasification. It analyzed collected tar components using a gas chromatograph-mass spectrograph (GC-MS). Experimental results indicate that, with increasing temperature from 700°C to 900°C, the concentrations of benzene, indene, phenanthrene, naphthalene, acenaphthylene, fluorene, and pyrene increased whereas those of toluene, phenol, 1-methylnaphthalene, and 2-methylnaphthalene decreased. As the equivalence ratio (ER) increased from 0.21 to 0.34, the concentrations of indene and phenanthrene increased from 0.148% and 0.087% to 0.232% and 0.223%, respectively. Further, the phenol content increased as ER increased from 0.21 to 0.26 and then decreased as the ER increased further to 0.34. Other parameters like the steam/biomass (S/B) ratio and catalyst also played a critical role in tar reduction. This paper demonstrates the conversion of some tar components and elucidates their chemical properties during gasification.

Keywords: gasification     tar components     operating parameters    

Prevention of surgical site infection under different ventilation systems in operating room environment

Zhijian Liu, Haiyang Liu, Hang Yin, Rui Rong, Guoqing Cao, Qihong Deng

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1327-9

Abstract: Biological particles in the operating room (OR) air environment can cause surgical site infections (SSIseffective ventilation system among the four ventilation systems for ensuring air cleanliness in the operatingThis study also indicated that air cleanliness in the operating area depended not only on the airflow

Keywords: Operating room (OR)     Bacteria-carrying particles (BCPs)     Surgical site infections (SSIs)     Ventilation    

Effects of operating conditions on membrane charge property and nanofiltration

Li XU, Li-Shun DU, Jing HE

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 492-499 doi: 10.1007/s11705-011-1143-7

Abstract: The effects of the operating pressure, cross flow velocity, feed concentration, and temperature on theThe permeate flux and the retention rate under different nanofiltration operating conditions were alsoThe effects of the operating conditions on the permeate flux and the retention rate were explained by

Keywords: nanofiltration membrane     streaming potential     Zeta potential     permeate flux     retention rate    

Intelligent technologies help operating mobile cabin hospitals effectively cope with COVID-19

Ying ZHOU, Lingling WANG, Lieyun DING, Zhouping TANG

Frontiers of Engineering Management 2020, Volume 7, Issue 3,   Pages 459-460 doi: 10.1007/s42524-020-0113-5

Applying the multi-zone model in predicting the operating range of HCCI engines

Ming JIA, Maozhao XIE, Zhijun PENG,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 414-423 doi: 10.1007/s11708-010-0108-8

Abstract: In this paper, a multi-zone model is developed to predict the operating range of homogeneous charge compressionThe boundaries of the operating range were determined by knock (presented by ringing intensity), partialsatisfactory agreement with measurements made under different initial temperatures and equivalence ratios; the operatingFurthermore, the model was applied to predict the operating range of the HCCI engine under differentThe potential to extend the operating range of the HCCI engine through two strategies, i.e., variable

Keywords: homogeneous charge compression ignition (HCCI) engine     multi-zone     operating range    

Experimental investigations on operating characteristics of a closed loop pulsating heat pipe

Yu WANG

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 134-141 doi: 10.1007/s11708-015-0354-x

Abstract: The operating mechanism of the pulsating heat pipe (PHP) is not well understood and the present technologyThe operating characteristics were studied for the variation of heat input, filling ratio (FR) and inclination

Keywords: closed loop pulsating heat pipe     thermal performance     operation limit     thermography    

Piezoelectric inertial robot for operating in small pipelines based on stick-slip mechanism: modeling

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0697-z

Abstract: and the LuGre friction model, and the simulation analysis of the effect of system parameters on the operating

Keywords: pipeline robot     piezoelectric     inertial drive     stick-slip     large load capacity     dynamics model     small pipeline    

A rank-based multiple-choice secretary algorithm for minimising microgrid operating cost under uncertainties

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 198-210 doi: 10.1007/s11708-023-0874-8

Abstract: multiple-choice secretary algorithm (RMSA) was proposed for microgrid management, to reduce the microgrid operatingThe RMSA enables a microgrid to reduce the operating cost by determining the best electricity purchase

Keywords: energy management systems     demand response     scheduling under uncertainty     renewable energy sources     multiple-choice secretary algorithm    

Performance and emission characteristics of a diesel engine operating on different water in diesel emulsion

Seyed Saeed HOSEINI, Mohammad Amin SOBATI

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 636-657 doi: 10.1007/s11708-019-0646-7

Abstract: The nitrogen oxide (NO ) release of diesel engines can be reduced using water in diesel emulsion fuel without any engine modification. In the present paper, different formulations of water in diesel emulsion fuels were prepared by ultrasonic irradiation. The water droplet size in the emulsion, polydisperisty index, and the stability of prepared fuel was examined, experimentally. Afterwards, the performance characteristics and exhaust emission of a single cylinder air-cooled diesel engine were investigated using different water in diesel emulsion fuels. The effect of water content (in the range of 5%–10% by volume), surfactant content (in the range of 0.5%–2% by volume), and hydrophilic-lipophilic balance (HLB) (in the range of 5–8) was examined using Box-Behnken design (BBD) as a subset of response surface methodology (RSM). Considering multi-objective optimization, the best formulation for the emulsion fuel was found to be 5% water, 2% surfactant, and HLB of 6.8. A comparison was made between the best emulsion fuel and the neat diesel fuel for engine performance and emission characteristics. A considerable decrease in the nitrogen oxide emission (–18.24%) was observed for the best emulsion fuel compared to neat diesel fuel.

Keywords: water in diesel emulsion fuel     hydrophilic-lipophilic balance (HLB)     response surface methodology (RSM)     emulsion stability     engine performance     exhaust emission    

Title Author Date Type Operation

Application of the invasive weed optimization algorithm to economic dispatch problems

T. JAYABARATHI, Afshin YAZDANI, V. RAMESH

Journal Article

An improved chaotic hybrid differential evolution for the short-term hydrothermal scheduling problem considering practical constraints

Tahir Nadeem MALIK,Salman ZAFAR,Saaqib HAROON

Journal Article

Hazard potential of zones of weakness in gravity dams under impact loading conditions

Herbert LINSBAUER

Journal Article

Interactive effects of high-speed rail on nodal zones in a city: exploratory study on China

Guo LIU, Kunhui YE

Journal Article

Identification of abnormal operating conditions and intelligent decision system

Xiuliang LI, Junjie JIANG, Hongye SU, Jian CHU

Journal Article

Analyzing and quantitatively evaluating the organic matter source at different ecologic zones of tidal

GAO Jianhua, YANG Guishan, OU Weixin

Journal Article

Experimental study on influence of operating parameters on tar components from corn straw gasification

Shuai GUO, Xiao WEI, Deyong CHE, Hongpeng LIU, Baizhong SUN

Journal Article

Prevention of surgical site infection under different ventilation systems in operating room environment

Zhijian Liu, Haiyang Liu, Hang Yin, Rui Rong, Guoqing Cao, Qihong Deng

Journal Article

Effects of operating conditions on membrane charge property and nanofiltration

Li XU, Li-Shun DU, Jing HE

Journal Article

Intelligent technologies help operating mobile cabin hospitals effectively cope with COVID-19

Ying ZHOU, Lingling WANG, Lieyun DING, Zhouping TANG

Journal Article

Applying the multi-zone model in predicting the operating range of HCCI engines

Ming JIA, Maozhao XIE, Zhijun PENG,

Journal Article

Experimental investigations on operating characteristics of a closed loop pulsating heat pipe

Yu WANG

Journal Article

Piezoelectric inertial robot for operating in small pipelines based on stick-slip mechanism: modeling

Journal Article

A rank-based multiple-choice secretary algorithm for minimising microgrid operating cost under uncertainties

Journal Article

Performance and emission characteristics of a diesel engine operating on different water in diesel emulsion

Seyed Saeed HOSEINI, Mohammad Amin SOBATI

Journal Article