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A modified zone model for estimating equivalent room thermal capacity

Hua CHEN, Xiaolin WANG

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 351-357 doi: 10.1007/s11708-013-0254-x

Abstract: The zone model has been widely applied in control analysis of heating, ventilation and air conditioning (HVAC) systems to achieve a high building efficiency. This paper proposed a modified zone model which is much simpler in the HVAC system simulation and has the similar accuracy to the complicated simulation model. The proposed model took into consideration the effect of envelop heat reservoir on the room indoor temperature by introducing the thermal admittance of the inner surfaces of the building enclosure. The thermal admittance for the building enclosure was developed based on the building thermal network analytical theory and transfer function method. The efficacy of the proposed model was demonstrated by comparing it with the complicated model — heat balance method (HTB2 program). The predicted results from the proposed model well agreed with those from the complicated simulation. The proposed model can then make the HVAC system dynamic simulation much faster and more acceptable for control design due to its simplicity and efficiency.

Keywords： room model     thermal network analysis     transfer function     heating     ventilation and air conditioning (HVAC) system simulation    

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Distribution of background equivalent static wind load on high-rise buildings

Jianguo ZHANG , Ming GU ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 241-248 doi: 10.1007/s11709-009-0036-z

Abstract: gust load envelope (GLE) methods, are verified in terms of their accuracy in describing the background equivalentBased on the results, formulae of the distribution of background equivalent static load on high-rise

Keywords： high-rise buildings     along-wind     cross-wind     background equivalent static wind load     close formulae    

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A fractional-order multifunctionaln-step honeycomb RLC circuit network Article

Ling ZHOU, Zhi-zhong TAN, Qing-hua ZHANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 8,   Pages 1186-1196 doi: 10.1631/FITEE.1601560

Abstract: We derive two new formulae for equivalent resistance in the resistor network and equivalent impedanceFirst, we simplify the complex network into a simple equivalent model.Third, we construct an equivalent transformation method to obtain a general solution for the nonlinear

Keywords： Honeycomb network     Equivalent transformation     Fractional differential equation     Impedance characteristics    

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China’s new problems of food security revealed by the Food Equivalent Unit

Huilong LIN,Ruichao LI,Cangyu JIN,Chong WANG,Maohong WEI,Jizhou REN

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 1,   Pages 69-76 doi: 10.15302/J-FASE-2014023

Abstract: Thus, not only grain for human consumption, but also animal foods have been integrated into the Food Equivalent

Keywords： food security     nutrition security     food equivalent unit     grassland agriculture     China    

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Equivalent circuit and characteristic simulation of a brushless electrically excited synchronous wind

Hao WANG, Fengge ZHANG, Tao GUAN, Siyang YU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 420-426 doi: 10.1007/s11465-017-0439-9

Abstract: In view of this problem, the equivalent circuit and electromagnetic torque expression of the BEESG areThe generator is simulated and tested experimentally using the established equivalent circuit model.Results show the validity of the equivalent circuit model.

Keywords： wind power     brushless electrically excited synchronous generator     hybrid rotor     equivalent circuit    

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Fault classification and reconfiguration of distribution systems using equivalent capacity margin method

K. Sathish KUMAR, T. JAYABARATHI

Frontiers in Energy 2012, Volume 6, Issue 4,   Pages 394-402 doi: 10.1007/s11708-012-0211-0

Abstract: support vector machines (SVM) for prediction of fault classification and the use of the concept of equivalent

Keywords： support vector machines (SVM)     structural risk minimization (SRM)     equivalent capacity margin (ECM)     restoration    

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Transformation of triclosan by a novel cold-adapted laccase from

Yuanyuan Shi, Deyang Kong, Jiayang Liu, Junhe Lu, Xiaoming Yin, Quansuo Zhou

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 3, doi: 10.1007/s11783-017-0927-5

Abstract: This work investigated the transformation of triclosan (TCS) by laccase produced by a pathogen isolatedTransformation products of TCS were analyzed by mass spectrometry and it was revealed that TCS dimerswidely presented in natural environment, this study also revealed an important pathway involved in the transformation

Keywords： Laccase     Botrytis cinerea     Triclosan     Transformation     Kinetics    

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Numerical calculation for the equivalent surface source of the thermal neutron duct of in-hospital neutron

Zhu Yangni,Jiang Xinbiao,Zhao Zhumin,Zhang Liang,Zhou Yongmao

Strategic Study of CAE 2012, Volume 14, Issue 8,   Pages 56-59

Abstract:

Numerical calculation for the equivalent surface source of the thermalEquivalent neutron and γ surface sources for BNCT are built using equivalent surface source modelAnd these sources are reliable to calculate absorbed dose distribution in equivalent model of head quickly

Keywords： IHNI－1 reactor     thermal neutron duct     equivalent neutron surface source     equivalent γ surface source    

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Equivalent linearization method based on assessment area in the analysis-design of pressure vessels

Yin Yihui,Yu Shaorong

Strategic Study of CAE 2008, Volume 10, Issue 10,   Pages 31-35

Abstract:

Based on the analytical solutions of a spherical pressure vessel subjected to internal pressure, it points out that the results of membrane stress and bending stress are inaccurate obtained by the one-dimension integral along a line called assessment line in the direction of shell thickness recommended by some references and standards. Therefore, a more accurate method is presented in which the resorted stresses are obtained through two-dimension integral over a ring cross-section area called assessment area of the shell. As an example, an analysis based on the elastic analytical solutions of a thick-walled spherical shell bearing internal pressure shows that the method suggested by this paper can make analysis and design of pressure vessels more accurate.

Keywords： pressure vessel     analysis-design     stress assorting     equivalent linearization method    

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FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 1,   Pages 1-3 doi: 10.15302/J-FASE-2023491

Abstract: FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Keywords： TRANSFORMATION     SYSTEMS     FOOD     CONCEPTS     MECHANISMS    

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TRANSFORMATION OF FOOD SYSTEMS: HOW CAN IT BE FINANCED?

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 1,   Pages 109-123 doi: 10.15302/J-FASE-2023483

Abstract:

● The analysis of financing for the transformation of food systems

Keywords： financial markets     food systems     development financing     consumer expenditures     public budgets     Sustainable Development Goals    

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The transformation of PAHs in the sewage sludge incineration treatment

Hui ZHANG,Le XU,Yifei ZHANG,Mengchan JIANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 336-340 doi: 10.1007/s11783-014-0766-6

Abstract: The result indicates that the transformation may occurre between monomers of PAHs during their releaseThe possible transformation of Naphthalene to indeno(1, 2, 3-cd)pyrene was related to the temperatureHere, we showed that the output rate of transformation reactions for indeno(1, 2, 3-cd)pyrene is 94%

Keywords： release of monomers     transformation of monomers     PAHs     sewage sludge     incineration treatment    

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Design of damping valve for vehicle hydro pneumatic suspension

DONG Mingming, HUANG Hua, GU Lian

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 97-100 doi: 10.1007/s11465-008-0014-5

Abstract: optimum damping coefficient is worked out and the parameters of the damping valve are determined with the equivalent

Keywords： ability     pneumatic     necessity     flowrate     equivalent linearization    

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Strategic Updating of Internet Plus Considering Digital Transformation

He Wei,Zhang Weidong,Wang Chaoxian

Strategic Study of CAE 2020, Volume 22, Issue 4,   Pages 10-17 doi: 10.15302/J-SSCAE-2020.04.002

Abstract: These necessitate the construction of a new system and exploration of new paths for the transformationhave gradually improved, a new blueprint for the transformation has emerged, and the integration ofHowever, the digital transformation framework system needs to be reconstructed, the key elements of transformationecology, establish transformation and innovation networks, and upgrade the policy support system forthe Internet Plus initiative, thereby promoting the digital transformation of economy and society to

Keywords： technology industry transformation     digital transformation     Internet Plus     industry upgrade    

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Assessment indices for uniform and non-uniform thermal environments

ZHANG Yufeng, SUN Shufeng, ZHAO Rongyi

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 129-133 doi: 10.1007/s11708-008-0029-y

Abstract: The results show that these three assessment indices provide equivalent evaluations in uniform environments

Keywords： thermal sensation     proper assessment     relationship     equivalent     thermal acceptability    

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Title Author Date Type Operation

A modified zone model for estimating equivalent room thermal capacity

Hua CHEN, Xiaolin WANG

Journal Article

Distribution of background equivalent static wind load on high-rise buildings

Jianguo ZHANG , Ming GU ,

Journal Article

A fractional-order multifunctionaln-step honeycomb RLC circuit network

Ling ZHOU, Zhi-zhong TAN, Qing-hua ZHANG

Journal Article

China’s new problems of food security revealed by the Food Equivalent Unit

Huilong LIN,Ruichao LI,Cangyu JIN,Chong WANG,Maohong WEI,Jizhou REN

Journal Article

Equivalent circuit and characteristic simulation of a brushless electrically excited synchronous wind

Hao WANG, Fengge ZHANG, Tao GUAN, Siyang YU

Journal Article

Fault classification and reconfiguration of distribution systems using equivalent capacity margin method

K. Sathish KUMAR, T. JAYABARATHI

Journal Article

Transformation of triclosan by a novel cold-adapted laccase from

Yuanyuan Shi, Deyang Kong, Jiayang Liu, Junhe Lu, Xiaoming Yin, Quansuo Zhou

Journal Article

Numerical calculation for the equivalent surface source of the thermal neutron duct of in-hospital neutron

Zhu Yangni,Jiang Xinbiao,Zhao Zhumin,Zhang Liang,Zhou Yongmao

Journal Article

Equivalent linearization method based on assessment area in the analysis-design of pressure vessels

Yin Yihui,Yu Shaorong

Journal Article

FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Journal Article

TRANSFORMATION OF FOOD SYSTEMS: HOW CAN IT BE FINANCED?

Journal Article

The transformation of PAHs in the sewage sludge incineration treatment

Hui ZHANG,Le XU,Yifei ZHANG,Mengchan JIANG

Journal Article

Design of damping valve for vehicle hydro pneumatic suspension

DONG Mingming, HUANG Hua, GU Lian

Journal Article

Strategic Updating of Internet Plus Considering Digital Transformation

He Wei,Zhang Weidong,Wang Chaoxian

Journal Article

Assessment indices for uniform and non-uniform thermal environments

ZHANG Yufeng, SUN Shufeng, ZHAO Rongyi

Journal Article