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The virtual-real measurement of Chinese garden impression:A quantitative analysis of cognitive experience of Jiangnan gardens with virtual reality experiments

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Frontiers of Architectural Research 2024年第4期13卷 895-911页

作者： Chenhao Shen Chuanfei Yu School of Architecture Southeast UniversityNanjing 210096China

Traditional Jiangnan garden architecture in China offers distinct spatial impressions that hold significance in contemporary architectural ***,the understanding and analysis of these spaces have historically relied on subjective,sensory experiences,often lacking precise,quantitative ***,establishing clear logical connections between visual cognition and emotional perception within these spatial experiences has been a *** study introduces virtual reality spatial simulation and quantification techniques,summarizing key Jiangnan garden spatial characteristics and *** includes a series of virtual reality experiments focusing on cognitive experiences within Jiangnan garden spaces.A comprehensive analysis of isovisit quantitative data,questionnaires,and behavioral information explores the logical relationships between emotional perceptions(calmness,surprise,interest,confusion)and visual cognition qualities(openness,complexity,theatricality)in garden space *** research aims to reveal deeper connections between garden space qualities,visual cognition,and emotional experiences,offering valuable insights for the application of historical traditional spatial features in contemporary *** bridges the gap between sensory experiences and rational analysis,enhancing our understanding of the intricate spatial narratives within Jiangnan gardens.

关键词： Chinese Jiangnan gardens Virtual reality Spatial experience simulation experiment Quantitative analysis

experimental Research of Reinforced Concrete Buildings Struck by Debris Flow in Mountain Areas of Western China

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Wuhan University Journal of Natural Sciences 2007年第4期12卷 645-650页

作者： ZHANG Yu WEI Fangqiang WANG Qing Institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu 610041 Sichuan China School of Enviornment Resources Southwest University of Science and Technology Mianyang 621010 Sichuan China

It＇s very important to simulate impact load of debris flow effectively and to investigate dynamic response of architectures under dynamic impact of debris flow, which are necessary to design disaster mitigation construction. Firstly, reinforced concrete domestic architectures in mountain areas of western China had been chosen as main architecture style. The bearing load style and the destructed shape of reinforced flamed construction impacted by discontinuous viscous debris flow were studied systematically. Secondly, Jiangjia Ravine debris flow valley in Yunnan Province, China had been chosen as research region. Utilizing based data from fieldwork and practical survey, the authors simulated and calculated theoretically impact force of discontinuous viscous debris flow. Thirdly, an impact data collecting system （IMHE IDCS） was designed and developed to fulfill designed simulation experiments. Finally, a series of impact test of researched structure models had been fulfilled. During experiment, the destructed shape and course of models were observed and the dynamic displacement data and main natural frequency data of models were collected and analyzed.

关键词： debris flow impact load dynamic response simulation experiment architecture

experimentS ON SELF-PURIFICATION OF HEAVY METALPOLLUTANTS IN NATURAL RIVERS

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Journal of Hydrodynamics 1999年第1期11卷 20-32页

作者： Huang Sui-liang (Water Environment simulation Laboratory, State Key Joint Laboratory of Environmental simulation and Pollution Control, Beijing Normal University, Beijing 100875,P. R. China) Wan Zhao-hui (Deportment of Sedimentation Engineering, China Ins

This paper is concerned with the experiments of simulating self-purification of heavy metal pollutants in natural rivers, such as tributaries polluted by heavy metal polutants joining a main stream, or an uncontaminated tributary with much sediment entering a main stream polluted by heavy metal pollutants, and the experiments on the effect of sediment movement on the adsorption of heavy metal pollutants. Further-more, the effect of turbulence, sediment supply conditions and sediment motion patterns on the adsorption of heavy metal pollutants are studied in a device, in which turbulence is generated by a harmonically vibrating set of grids. The results indicate that sediment motion pattern has no effect on the characteristic parameters in the adsorption isotherm, such as the saturated adsorption content by unit weight of seidment and the constant of adsorption-desorption rate in the Langmuir adsorption isotherm, but it has significant effect on the coefficient of adsorption rate (or the coefficient of desorption rate). When the turbulent intensity of flow is low and all sediment exists as bottom mud, the coefficient of adsorption rate of sediment (or the coefficient of desorption rate of sediment) is very small, thus descending rate of concentration of dissolved heavy metal pollutant concentration is small, and when the turbulent intensity of flow is high, sediment supply condition, that is, whether sediment exists on the bed or not, influences greatly the variation of dissolved heavy metal pollutant concentration. When the sediment on the bed could be lifted up, descending rate of dissolved heavy metal pollutant concentration is large. In other wards, the coefficient of adsorption rate (or the coefficient of desorption rate) by unit weight of suspended sediment is much larger than that by unit weight of bottom mud.

关键词： simulation experiment sediment heavy metal pollutants natural rivers water-sediment-pollutant interaction

Study of Thermodynamics and Kinetics of CH_4-CaSO_4 and H_2S-Fe_2O_3 Systems

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Chinese Journal of Chemical Engineering 2003年第6期11卷 696-700页

作者：岳长涛李术元丁康乐钟宁宁 State Key Laboratory of Heavy Oil Processing University of PetroleumBeijing 102249China

The destruction of hydrocarbon in deep carbonate diagenetic environment is one of problems on the formation of oil and gas. Organic-inorganic reactions in the process of TSR(Thermochemical Sulfate Reduction) are the main reason to make disappearance of the hydrocarbons. The work in this field has often been the subject of much research work in recent years. In this paper, the thermodynamics of CH4-CaSO4 and H2S-Fe2O3 systems is discussed to investigate the possibility of reactions. It is found that these two reactions can proceed *** temperature is favorite for CH4-CaSO4 system but disfavorite for H2S-Fe2O3 system. Thermal simulation experiments were carried out using autoclave at high temperature and high pressure. The properties of the products were characterized by microcoulometry, FT-IR and XRD methods. On the basis of the experimental data, a reaction kinetic model is developed and kinetic parameters are determined.

关键词： thermochemical sulfate reduction CH4-CaSO4 system H2S-Fe2O3 system simulation experiment kinetics

Multi-Strategy-Driven Salp Swarm Algorithm for Global Optimization

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Journal of Computer and Communications 2023年第7期11卷 88-117页

作者： Zhiwei Gao Bo Wang College of Science Shenyang University of Technology Shenyang China

In response to the shortcomings of the Salp Swarm Algorithm (SSA) such as low convergence accuracy and slow convergence speed, a Multi-Strategy-Driven Salp Swarm Algorithm (MSD-SSA) was proposed. First, food sources or random leaders were associated with the current bottle sea squirt at the beginning of the iteration, to which Levy flight random walk and crossover operators with small probability were added to improve the global search and ability to jump out of local optimum. Secondly, the position mean of the leader was used to establish a link with the followers, which effectively avoided the blind following of the followers and greatly improved the convergence speed of the algorithm. Finally, Brownian motion stochastic steps were introduced to improve the convergence accuracy of populations near food sources. The improved method switched under changes in the adaptive parameters, balancing the exploration and development of SSA. In the simulation experiments, the performance of the algorithm was examined using SSA and MSD-SSA on the commonly used CEC benchmark test functions and CEC2017-constrained optimization problems, and the effectiveness of MSD-SSA was verified by solving three real engineering problems. The results showed that MSD-SSA improved the convergence speed and convergence accuracy of the algorithm, and achieved good results in practical engineering problems.

关键词： Salp Swarm Algorithm (SSA) Levy Flight Brownian Motion Location Update simulation experiment

“Compression Dynamometamorphic Solid Bitmen” and Its Significance in Oil and Gas Exploration

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Wuhan University Journal of Natural Sciences 2000年第2期5卷 224-228页

作者： Gao Zhi-nong Chen Yuan-yin Niu Fei Chen Yi-fan College of Chemistry and Environmental Science Wuhan University Wuhan China College of Material Science and Chemical Engineering China University of Geosciences Wuhan China

There is natural occurrence of pressure-induced solid bitumen, here referred to as “compression dynamometamorphic solid bitumen”. It differs in physical properties and chemical structure from thermal metamorphic solid bitumen. Under a high pressure and moderate temperature, the solid bitumen forms crystals and its reflectance rises rapidly with increasing crystallization. Accordingly, its reflectance can reach a very high value without having been exposed to a high level of thermal stress. Laboratory simulation confirms the formation of pressure-induced solid bitumen at moderate temperatures. The revelation of this new bitumen type is very helpful in the accurate maturity determination of carbonate organic matter.

关键词： compression dynamometamorphic bitumen simulation experiment oil and gas exploration

Design of increasing controllability of braking vehicle

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Journal of Measurement Science and Instrumentation 2016年第3期7卷 272-278页

作者： Talkachou Dzianis 兰州交通大学自动化与电气工程学院兰州730030

The operating principle of an antilock braking system （ABS） is it compares current value of angular acceleration with the threshold value. The advantage of such system is that enough it has only the angular velocity sensors. The disadvantage is successive overshoot, i. e. successive transition from wheels locking mode to wheels rolling mode. So braking mechanism can’ t realize the maximum possible torque in the current road conditions. The idea of increasing the braking effectiveness is the intensity of rising pressure depends on the road conditions. The problem is the torque produced by braking mechanism, current road conditions and the value of traction coefficient is unknown For evaluation of these parameters built and training three neural networks. A simulator of random road condition＇s variation was built to test adequacy of the control unites operation in close to real conditions.

关键词： antilock braking system (ABS) model of braking vehicle parameter identification simulation experiment

Pyrolysis experiments of forest marsh peat samples with different maturities:An attempt to understand the isotopic fractionation of coalbed methane during staged accumulation

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Pyrolysis experiments of forest marsh peat samples with diff...

On Adaptive Control Applied to Speed Regulation of Marine Diesel Engine

中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： Yi Duan Tao Sun Yaorong Qian Jinxian He Xiaoli Zhang Li Xu Baoxiang Wu Key Laboratory of Petroleum Resources Research Institute of Geology and GeophysicsChinese Academy of Sciences Analytical Chemistry Branch BEAD/Office of Pesticide Programs US EPA 701 Mapes Rd.Fort MeadeMD 20755-5350United States

In order to understand the isotopic features of coalbed gas formed in staged accumulation processes,five starting materials with different maturity were prepared from a peat at temperatures of 250℃,300℃, 350℃,400℃and 450℃,***-system isothermal pyrolysis experiments were performed on these samples at various temperature *** carbon and hydrogen isotopic compositions of methane and ethane generated during the pyrolysis of the samples with different thermal maturities were *** results showed that the higher the initial thermal maturity of the starting sample, the heavier the carbon and hydrogen isotopic compositions of the generated methane and *** was observed that the carbon isotope compositions of the generated methane differed significantly depending on initial thermal maturity of the samples,whereas the hydrogen isotopic compositions did not differ as *** relationships of theδC andδD values of gases generated from the samples with maturity intervals of 0.8-4.8%,1.1-4.8%,1.9-4.8%,2.3-4.8%,3.1-4.8%R,respectively,were *** results may provide a basis for studying on the isotopic geochemistry of coalbed gas formed in staged accumulation processes.

关键词： Coalbed methane Staged gas accumulation Peat simulation experiment Carbon and hydrogen isotope

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On Adaptive Control Applied to Speed Regulation of Marine Di...