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Regeneration of vernacular architecture: new rammed earth houses on the upper reaches of the Yangtze River

Jiaping LIU, Rongrong HU, Liu YANG, Runshan WANG,

Frontiers in Energy 2010, Volume 4, Issue 1,   Pages 93-99 doi: 10.1007/s11708-010-0002-4

Abstract: In rural areas of western China, most of the vernacular architectures are made of earth. In the process of urbanization, few residents like to build their houses with earth because the old traditional earth house cannot meet their requirement for higher standard of living. As a result, much more energy will be consumed if industrial building materials are used instead of earth. The regeneration of the traditional earth house, therefore, becomes a challenge in new village construction. This paper briefly describes a project about creating a new prototype of earth house for the migrants along the upper reaches of the Yangtze River to shed light on finding an appropriate approach for regenerating the traditional earth houses with the concept of low-energy housing. It includes an investigation of the traditional earth house and the environment condition of the new settlement, the new house design process, and the quantitative evaluation of the living quality of the new house.

Keywords： earth house     low-energy housing     upper reaches of the Yangtze River     passive solar technique    

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A state-of-the-art review of solar passive building system for heating or cooling purpose

Arun Kumar NANDA,C K PANIGRAHI

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 347-354 doi: 10.1007/s11708-016-0403-0

Abstract: ., Trombe wall, solar chimney, unglazed transpired solar façade, and solar roof, are adopted for solarTherefore, an attempt has been made in this paper to compile the developments of solar heating and cooling

Keywords： HVAC     heating     cooling     solar heating     carbon dioxide (CO2) emissions    

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Experimental study on performance of passive and active solar stills in Indian coastal climatic condition

R. LALITHA NARAYANA, V. RAMACHANDRA RAJU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 105-113 doi: 10.1007/s11708-018-0536-4

Abstract: present work is aimed to examine the effect of mass flow rate on distillate output and performance of a solarAn attempt was also made earlier in passive mode to optimize the water depth for the same solar stillFor the passive still, it is observed that the capacity of heat storage and heat drop are significantIn the active solar still, with the optimum water depth, different flow rates of 0.5, 1 and 1.5 L/minThe enhanced yield of the active solar still is 57.55%, compared with that of the passive solar still

Keywords： distillation efficiency     solar still     heat transfer coefficient     water depth     optimum and mass flow rate    

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Joint compressed sensing imaging and phase adjustment via an iterative method for multistatic passive None

Jue WANG, Jun WANG

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 4,   Pages 557-568 doi: 10.1631/FITEE.1601423

Abstract: The resolution of the multistatic passive radar imaging system (MPRIS) is poor due to the narrow bandwidthThen the compressed sensing technique is extended to the MPRIS to realize high-resolution imaging.Furthermore, a phase correction technique is developed for compen-sating for phase errors in an MPRISThe technique is nonparametric and can be used to estimate phase errors of any form.The effectiveness and convergence of the technique are confirmed by numerical simulations.

Keywords： Multistatic passive radar     Compressed sensing     Phase adjustment     Fixed-point iteration technique    

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Simulation studies on metastable phase equilibria in the aqueous ternary systems (NaCl-MgCl

Tianlong DENG, Baojun ZHANG, Dongchan LI, Yafei GUO

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 172-175 doi: 10.1007/s11705-009-0048-1

Abstract: The solubilities and densities of the aqueous metastable ternary systems (NaCl-MgCl -H O) and (KCl-MgCl -H O) at 308.15 K were determined by the isothermal evaporation method. On the basis of the experimental results, the phase diagrams for those systems were plotted. It was found that the former system belongs to the hydrate-I type with one invariant point of (NaCl+ MgCl ?6H O), two univariant curves, and two crystallization regions corresponding to halite (NaCl) and bischofite (MgCl ·6H O); and the latter system belongs to the type of incongruent-double salts with two invariant points of (KCl+ KCl·MgCl ·6H O) and (MgCl ·6H O+ KCl·MgCl ·6H O), three univariant curves, and three crystallization regions corresponding to potassium chloride (KCl), carnallite (KCl·MgCl ·6H O) and bischofite (MgCl ·6H O). No solid solutions were found in both systems.

Keywords： green chemistry     solar pond technique     simulation     metastable phase equilibrium     solubility    

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Mechanistic insight into the biofilm formation and process performance of a passive aeration ditch (PAD

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1494-3

Abstract:

• A Passive Aeration Ditch was developed to treat decentralized wastewater

Keywords： Decentralized wastewater     Passive aeration ditch     Biofilm formation     C/N ratio     Salinity     Model simulation    

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Numerical modeling and performance evaluation of passive convergence-permeable reactive barrier (PC-PRB

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1731-z

Abstract:

● A 2D finite-element solute transport model, PRB-Trans, is developed.

Keywords： Passive convergence-permeable reactive barrier     Numerical modeling     Hydraulic behavior assessment     Pollutant    

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Parametric control of structural responses using an optimal passive tuned mass damper under stationary

Min-Ho CHEY, Jae-Ung KIM

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 267-280 doi: 10.1007/s11709-012-0170-x

Abstract: In this study, the structural control strategy utilizing a passive tuned mass damper (TMD) system asFor damped structures, a numerical searching technique is used to obtain the optimal parameters of the

Keywords： tuned mass damper     parametric optimization     passive control     white noise     earthquake excitation    

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Power maximization of variable-speed variable-pitch wind turbines using passive adaptive neural fault

Hamed HABIBI, Hamed RAHIMI NOHOOJI, Ian HOWARD

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 377-388 doi: 10.1007/s11465-017-0431-4

Abstract:

Power maximization has always been a practical consideration in wind turbines. The question of how to address optimal power capture, especially when the system dynamics are nonlinear and the actuators are subject to unknown faults, is significant. This paper studies the control methodology for variable-speed variable-pitch wind turbines including the effects of uncertain nonlinear dynamics, system fault uncertainties, and unknown external disturbances. The nonlinear model of the wind turbine is presented, and the problem of maximizing extracted energy is formulated by designing the optimal desired states. With the known system, a model-based nonlinear controller is designed; then, to handle uncertainties, the unknown nonlinearities of the wind turbine are estimated by utilizing radial basis function neural networks. The adaptive neural fault tolerant control is designed passively to be robust on model uncertainties, disturbances including wind speed and model noises, and completely unknown actuator faults including generator torque and pitch actuator torque. The Lyapunov direct method is employed to prove that the closed-loop system is uniformly bounded. Simulation studies are performed to verify the effectiveness of the proposed method.

Keywords： wind turbine nonlinear model     maximum power tracking     passive fault tolerant control     adaptive neural control    

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Recent developments in passive interconnected vehicle suspension

Wade A. SMITH, Nong ZHANG,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1,   Pages 1-18 doi: 10.1007/s11465-009-0092-z

Abstract: paper presents an overall review on the historical concept development and research advancement of passiveIt starts with an introduction to passive HIS systems and their various incarnations developed over manyindependently specify modal stiffness and damping parameters – a characteristic unique among passive

Keywords： interconnected suspensions     rollover prevention     vehicle dynamics     ride comfort     multibody system dynamics     hydraulic system dynamics    

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Moving target detection in the cepstrum domain for passive coherent location (PCL) radar

Ji-chuan LI,Xiao-de LU,Hui ZHANG,Peng-cheng YANG,Yu LIU,Mao-sheng XIANG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 9,   Pages 785-795 doi: 10.1631/FITEE.1500036

Abstract: A cepstrum moving target detection (CEPMTD) algorithm based on cepstrum techniques is proposed for passive

Keywords： Moving target detection     Cepstrum techniques     Cross ambiguity function (CAF)     Passive coherent location    

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A Survey of the Observability for Single Observer Passive Location

Deng Xinpu

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 54-62

Abstract:

A basic requirement for passive state estimation using single observer In this paper,  the state-observability problem for passive target tracking by angle measurements

Keywords： passive location     TMA     observability    

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study of primary and secondary side coupling natural convection heat transfer characteristics of the passive

Zhimin QIU, Daogang LU, Jingpin FU, Li FENG, Yuhao ZHANG

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 860-871 doi: 10.1007/s11708-021-0744-1

Abstract: Passive residual heat removal heat exchanger (PRHR HX), which is a newly designed equipment in the advancedThe primary and secondary side coupling heat transfer characteristics of the passive residual heat removal

Keywords： passive residual heat removal heat exchanger (PRHR HX)     C-shape tube     revised heat transfer correlations    

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Impacts of solar multiple on the performance of direct steam generation solar power tower plant with

Yan LUO, Xiaoze DU, Lijun YANG, Chao XU, Muhammad AMJAD

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 461-471 doi: 10.1007/s11708-017-0503-5

Abstract: Solar multiple (SM) and thermal storage capacity are two key design parameters for revealing the performanceof direct steam generation (DSG) solar power tower plant.Taking the dual-receiver DSG solar power tower plant with a given size of solar field equivalent electricityThe influence of the size of solar field equivalent electricity is studied as well.The minimum LCOE decreases with the size of solar field, while the optimal SM and thermal storage capacity

Keywords： direct steam generation     solar power tower     solar multiple     thermal energy storage capacity     levelized cost    

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Imposing Active Sources during High-Frequency Passive Surface-Wave Measurement Article

Feng Cheng,Jianghai Xia,Chao Shen,Yue Hu,Zongbo Xu,Binbin Mi

Engineering 2018, Volume 4, Issue 5,   Pages 685-693 doi: 10.1016/j.eng.2018.08.003

Abstract: margin:0cm 0cm 0.0001pt">PassiveIn general, passive surface-wave methods cannot provide phase velocities up to several tens of hertz;To reduce the amount of field work, we propose a strategy for a high-frequency passive surface-wave surveythat imposes active sources during continuous passive surface-wave observation; we call our strategyThe spatial autocorrelation (SPAC) method and the multichannel analysis of passive surface waves (MAPS

Keywords： Passive surface wave     Active surface wave     High frequency     Mixed-source surface wave     Spatial autocorrelation     Multichannel analysis of passive surface waves    

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Title Author Date Type Operation

Regeneration of vernacular architecture: new rammed earth houses on the upper reaches of the Yangtze River

Jiaping LIU, Rongrong HU, Liu YANG, Runshan WANG,

Journal Article

A state-of-the-art review of solar passive building system for heating or cooling purpose

Arun Kumar NANDA,C K PANIGRAHI

Journal Article

Experimental study on performance of passive and active solar stills in Indian coastal climatic condition

R. LALITHA NARAYANA, V. RAMACHANDRA RAJU

Journal Article

Joint compressed sensing imaging and phase adjustment via an iterative method for multistatic passive

Jue WANG, Jun WANG

Journal Article

Simulation studies on metastable phase equilibria in the aqueous ternary systems (NaCl-MgCl

Tianlong DENG, Baojun ZHANG, Dongchan LI, Yafei GUO

Journal Article

Mechanistic insight into the biofilm formation and process performance of a passive aeration ditch (PAD

Journal Article

Numerical modeling and performance evaluation of passive convergence-permeable reactive barrier (PC-PRB

Journal Article

Parametric control of structural responses using an optimal passive tuned mass damper under stationary

Min-Ho CHEY, Jae-Ung KIM

Journal Article

Power maximization of variable-speed variable-pitch wind turbines using passive adaptive neural fault

Hamed HABIBI, Hamed RAHIMI NOHOOJI, Ian HOWARD

Journal Article

Recent developments in passive interconnected vehicle suspension

Wade A. SMITH, Nong ZHANG,

Journal Article

Moving target detection in the cepstrum domain for passive coherent location (PCL) radar

Ji-chuan LI,Xiao-de LU,Hui ZHANG,Peng-cheng YANG,Yu LIU,Mao-sheng XIANG

Journal Article

A Survey of the Observability for Single Observer Passive Location

Deng Xinpu

Journal Article

study of primary and secondary side coupling natural convection heat transfer characteristics of the passive

Zhimin QIU, Daogang LU, Jingpin FU, Li FENG, Yuhao ZHANG

Journal Article

Impacts of solar multiple on the performance of direct steam generation solar power tower plant with

Yan LUO, Xiaoze DU, Lijun YANG, Chao XU, Muhammad AMJAD

Journal Article

Imposing Active Sources during High-Frequency Passive Surface-Wave Measurement

Feng Cheng,Jianghai Xia,Chao Shen,Yue Hu,Zongbo Xu,Binbin Mi

Journal Article