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| 1 | Stability analysis of large-scale stope using stage subsequent fillingmining method in Sijiaying iron mine显示文摘To improve mining production capacity, a stage subsequent filling mining(SSFM) method is employed for Sijiaying iron mine. The height of the stage stope is approximately 100 m. As there are farmlands and villages on the surface of the mine, the surface deformation should be controlled when the ore is mined out for the purpose of stope stability and minimizing surface subsidence. In this paper, according to the site-specificgeological conditions, the self-stability of the stagefi lling body was analyzed, and the failure mechanism of back filling body was defined. Thus the relationship between the exposed height of filling body and the required strength was obtained. Next, the stability of back filling body and the characteristics of surface subsidence due to mining of 450 m level were analyzed using physical modeling.Finally, a three-dimensional numerical model was established using FLAC3 D, with which the surface subsidence and the stability of stope were achieved. The results show that the stope basically remains stable during the two-step recovery process. The maximum magnitude of the incline is 10.99 mm/m, a little larger than the permissible value of 10 mm/m, and the horizontal deformation is 5.9 mm/m,approaching the critical value of 6.0 mm/m, suggesting that the mine design is feasible for safety mining. | Zhiqiang Yang Shuhua Zhai Qian Gao Maohui Li | 2015 | 岩石力学与工程学报2015，34，1： | 15 |
| 2 | Physiological and subjective thermal responses to heat exposure in northern and southern Chinese people显示文摘When studying the thermal adaptation of building occupants,understanding the effects of different thermal experiences on adaptation is necessary,particularly for moderate and severe heat exposure.However,this area has seen limited research.Further,skin temperature,a common parameter for quantifying thermal sensation,may insufficiently reflect the automatic thermoregulation of the human body.This study investigates the effects of long-term heat exposure on the human body using multiple physiological and subjective indexes.Two heat exposure experiments were conducted on healthy male participants from northern and southern China.Participant responses,including skin temperature,heart rate,heart rate variability,blood volume pulse(BVP),subjective thermal comfort thermal sensation,thermal acceptability,and normalized high and low frequency values were collected and compared The results indicated that the subjective responses of northern and southern participants were not significantly different;however,the subjective physiological symptoms and self-reported discomfort of the latter were less than those of the former,indicating that the southern participants had superior heat tolerance.Additionally,the physiological responses of all the participants were largely similar.However,southern participants showed slightly higher normalized high frequency and BVP values,indicating that they have more active vagus nerves and better vasodilation.They also showed a wider acceptable temperature range and better acclimation to heat exposure.Notably,the mean skin temperature could not effectively predict thermal sensation during heat exposure;this was more accurately achieved using the rate of change of skin temperature.These findings suggest that long-term thermal experiences can affect building occupants’thermal adaptability. | Yufan Lin Liu Yang Maohui Luo | 2021 | Building Simulation2021，14，6： | 5 |
| 3 | Dynamic characteristics and comfort assessment of airflows in indoor environments: A review显示文摘During the past few decades, both positive and negative aspects of indoor air movement on human comfort perception have been studied. However, most research has focused on collecting empirical evidence to support the potential application of airflows in practice. In this context, numerous studies have encouraged the use of moving air to promote comfort in warm environments, especially with regard to the application of dynamic airflows. Through these studies, the effects of different airflow parameters(such as air velocity, turbulence intensity, and fluctuation frequency) on human comfort perception have gradually been identified and even quantified. This article aims to summarize the progress in the literature concerning dynamic characteristics and comfort assessment of airflows in four main sections: demand for indoor airflows, parameters of indoor airflows, comfort assessment of indoor airflows, and dynamic airflows and their application.This paper will hopefully aid the understanding of human perception of indoor airflows and guide future research. | Yingxin Zhu Maohui Luo Qin Ouyang Li Huang Bin Cao 侯恩哲 | 2015 | 建筑节能2015，43，9： | 5 |
| 4 | Reservoir history matching and inversion using an iterative ensemble Kalman filter with covariance localization显示文摘Reservoir inversion by production history matching is an important way to decrease the uncertainty of the reservoir description.Ensemble Kalman filter (EnKF) is a new data assimilation method.There are two problems have to be solved for the standard EnKF.One is the inconsistency between the updated model and the updated dynamical variables for nonlinear problems,another is the filter divergence caused by the small ensemble size.We improved the EnKF to overcome these two problems.We use the half iterative EnKF (HIEnKF) for reservoir inversion by doing history matching.During the HIEnKF process,the prediction data are obtained by rerunning the reservoir simulator using the updated model.This can guarantee that the updated dynamical variables are consistent with the updated model.The updated model can nonlinearly affect the prediction data.It is proved that HIEnKF is similar to the first iteration of the EnRML method.Covariance localization is introduced to alleviate filter divergence and spurious correlations caused by the small ensemble size.By defining the shape and size of the correlation area,spurious correlation between the gridblocks far apart is alleviated.More freedom of the model ensemble is preserved.The results of history matching and inverse problem obtained from the HIEnKF with covariance localization are improved.The results show that the model freedom increases with a decrease in the correlation length.Therefore the production data can be matched better.But too small a correlation length can lose some reservoir information and this would cause big errors in the reservoir model estimation. | Wang Yudou Li Maohui | 2011 | Petroleum Science2011，8，3： | 4 |
| 5 | Phase transition and heterogeneous strengthening mechanism in CoCrFeNiMn high-entropy alloy fabricated by laser-engineered net shaping via annealing at intermediate-temperature显示文摘High-entropy alloys(HEAs)have attracted tremendous attention owing to their controllable mechanical properties,whereas additive manufacturing(AM)is an efficient and flexible processing route for novel materials design.However,a profound appraisal of the fundamental material physics behind the strengthening of AM-printed HEAs upon low/intermediate-temperature annealing is essential.In this work,Co CrFe Ni Mn HEAs have been prepared using laser-engineered net shaping(LENS)and subsequently annealed at different temperatures.The Co Cr Fe Ni Mn HEA annealed at intermediate-temperature(873 K)exhibits a strong strain hardening capability,resulting in ultimate strength of 725 MPa and plasticity of 22%.A ternary heterogeneous strengthening mechanism is proposed to explain this phenomenon,in which equiaxed grains,columnar grains,andσprecipitates play different roles during tensile deformation.The resultant excellent strength and ductility can be ascribed to the heterostructure-induced mismatch.The equiaxed grains provide adequate grain boundaries(GBs),which induce dislocation plugging-up and entanglement;the columnar grains induce the onset and arrest of the dislocations for plastic deformation;and theσprecipitates hinder the movement of slip dislocations.The results provide new insights into overcoming the strength-ductility trade-off of LENS-printed HEAs with complex geometries. | Yunjian Bai Heng Jiang Kuo Yan Maohui Li Yanpeng Wei Kun Zhang Bingchen Wei | 2021 | Journal of Materials Science & Technology2021，，33： | 3 |
| 6 | Dynamic tensile and failure behavior of bi-directional reinforced GFRP materials显示文摘In this paper,a series of static/dynamic tensile tests are performed for glass fiber reinforced plastic(GFRP)composites.Using the combination of high-speed photography and digital image correlation(DIC)technology,true stress-strain curves in different directions and strain rates are obtained.We also obtained the dynamic failure strain of the material in different directions,which are used to accurately describe the dynamic tensile and failure behavior of the material.The experimental results show that there is a stiffness change point N in three directions under different strain rate(10-3 s-1,10 s-1,100 s-1)tensile conditions.The stiffness before and after N point is recorded as Einitial and Echanged respectively.The values of Echanged in weft direction and warp direction are about 30%to 50%of Einitial,while Echanged in tilt direction is only about 10%of Einitial.The fiber has the highest strength in the weft direction and the tilt direction has the lowest strength.With the combination of high-speed photography and DIC technology,the dynamic failure parameters of different directions under the strain rate of 100 s-1 are obtained.The dynamic failure strains in three directions are 0.245,0.373 and 0.341,respectively.The parameters are verified by impact three-point bending test.These works can more accurately describe the dynamic mechanical behavior of glass fiber reinforced plastic(GFRP)composites and provide reference for the design of GFRP structures. | Zishang Liu Zhe Yang Yuchao Chen Yangyang Yu Yanpeng Wei Maohui Li Chenguang Huang | 2020 | Acta Mechanica Sinica2020，36，2： | 2 |
| 7 | Dynamic experimental studies of a6n01s-t5 aluminum alloy material and structure for high-speed train显示文摘In this study, we focus on the dynamic failure property of A6N01S-T5 aluminum alloyusing for high-speed train. The method of SHBT+3D DIC was put forward to figure out the dynamic mechanical properties and dynamic failure strain of A6N01S-T5 aluminum alloy,and on the basis of this, Johnson-Cook model constitutive parameters and dynamic failure strain parameters were obtained through a series of static and dynamic tests.An important character of this methodwas that the sandwich structure from the true high-speed train was used in penetration test,followed by the numerical calculation of the same working condition using LS-DYNA.Then we compare the experimental results with simulation results mentioned above in terms of failure morphology in structure and the bullet speed throughout the entire process to verifythe accuracyof the parameter. The experimental results provide a data basis for the crash simulation model of high-speed trains,in turn to optimize the structural design and whole efficiency. | Zishang Liu YangyangYu Zhe Yang Yanpeng Wei Junshuang Cai Maohui Li Chenguang Huang | 2019 | Acta Mechanica Sinica2019，35，4： | 2 |
| 8 | Energy and comfort performance of occupant-centric air conditioning strategy in office buildings with personal comfort devices显示文摘The personal comfort system(PCS)aims to meet individual thermal comfort demands efficiently to achieve higher thermal comfort satisfaction while reducing air conditioning energy consumption.To date,many PCS devices have been developed and evaluated from the perspective of thermal comfort.It will be useful for future PCS development if an approach to quantify the thermal comfort and energy performance of certain PCS devices and their combinations with consideration of user behaviors can be established.This study attempted to fill this gap by integrating thermal comfort experiments,occupancy simulations,usage behavior modeling,and building energy simulation technologies.First,human subject experiments were conducted to quantify the thermal comfort effects of the PCS.Then,the Markov chain model and conditional probability model were employed to describe the room occupancy and PCS usage behaviors.Finally,the extended comfort temperature range and user behavior models were imported into the building energy simulation tool to analyze the energy-saving potential of the PCS.The results show that the use of PCS can significantly improve occupants,thermal comfort and satisfaction rate under both warm and cool conditions.Using a cooling cushion and desktop fan can lift the upper limit of the comfortable temperature to 29.5℃while the heated cushion can extend the lower limit to 15℃.By increasing the air conditioning temperature setpoint by 2℃in summer and reducing by 2.5℃the heating temperature setpoint in winter,PCS devices can reduce heating and air conditioning energy consumption by 25%-40%while maintaining occupants’thermal comfort. | Jingsi Zhang Xiang Zhou Song Lei Maohui Luo | 2022 | Building Simulation2022，15，5： | 1 |
| 9 | A Compact Broadband Microstrip Bandpass Filter Using Folded Multiple-Mode Resonator显示文摘 | Qiao Liu Haoquan Hu Jun Xu Maohui Yang | | 0，，03： | 1 |
| 10 | A novel soft-template technique to synthesize metal Ag nanowire显示文摘 | Cuiying Wang Maohui Chen Guangming Zhu | 2001 | Journal of Colloid and Interface Science2001，243，2： | 1 |
| 11 | A Novel Soft-Template Technique to Synthesize Metal Ag Nanawire显示文摘 | Cuiying Wang Maohui Chen Guangming Zhu | 2001 | Journal of Colloid and Interface Science2001，243，： | 1 |
| 12 | Room zonal location and activity intensity recognition model for residential occupant using passive-infrared sensors and machine learning显示文摘Given the importance of recognizing indoor occupant’s location and activity intensity to the control of intelligent homes,exploring approaches that can detect occupants’location and activity types while protecting occupants’privacy is helpful.In this study,occupants’zonal location and activity intensity recognition models were developed using passive infrared(PIR)sensors and machine learning algorithms.A PIR sensor array with 15 nodes was employed to monitor indoor occupant’s and cat’s behavior in a case residential building for 71 days.The output signals of PIR sensors varied with different locations and activity intensities.By analyzing the PIR data feature,models were established using six machine learning algorithms and two sets of data.After comparing model performance,the support vector machine(SVM)algorithm was selected to establish the final models.The model input was optimized by accumulating the PIR data.Taking PIR original counting values in 1-minute and 30-minute accumulated data as input features,the optimized SVM model can achieve 99.7%accuracy under the 10-fold cross-validation for the training data set,and 90.9%accuracy for the test data set.The cat’s activity intensity is much weaker than that of occupant,yielding much smaller PIR output,which helped the SVM model to distinguish cat’s activity from occupant’s with>90%accuracy.The model’s recognition accuracy decreases with the decrease of sensor numbers and nine sensors were necessary.The findings obtained in this study support the promising future of applying PIR sensors in smart homes. | Jingsi Zhang Ting Zhao Xiang Zhou Jilong Wang Xinyue Zhang Chaokui Qin Maohui Luo | 2022 | Building Simulation2022，15，6： | 1 |
| 13 | Association between the APC gene D1822V variant and the genetic susceptibilityof colorectal cancer显示文摘 | Maohui Feng Xiping Fang Qian Yang Gang Ouyang Daping Chen Xiang Ma Huachi Li Wei Xie | 2014 | Oncology Letters2014，，1： | 1 |
| 14 | An Exploration of Growth and Selenium Enrichment of Selenium-enriched Rice显示文摘[Objectives]To explore the effects of selenium fertilizer on rice growth and selenium enrichment.[Methods]Using high-quality rice varieties as experimental materials,exogenous selenium fertilizer was sprayed at two critical periods of tillering stage and full heading stage to explore the effects of different selenium treatments on rice agronomic traits,leaf SPAD value and yield.[Results]Spraying selenium fertilizer could promote the growth of rice,and the selenium enrichment effect in the aboveground parts of the plant was obvious.The selenium content of rice(milled rice)was 0.04-0.07 mg/kg.[Conclusions]This study lays a foundation for the promotion of suitable leaf fertilizers in Zhaoqing City,and is expected to promote the cultivation and promotion of selenium-enriched rice. | Maohui WANG Keqing LI Chunyan ZHONG Jinquan NIE | 2022 | Asian Agricultural Research2022，14，11： | 0 |
| 15 | Effect of Characteristic Spectral Lines on Rock Identification of LIBS显示文摘 | Ke ZhiQuan Wang YangEn Xu Yi Dong XiPu Zhou MaoHui | 2015 | Journal of Physical Science and Application2015，5，4： | 0 |
| 16 | A patient with glycogen storage disease type IA combined with hepatic adenoma: A case report显示文摘Glycogen storage disease(GSD)is a rare autosomal recessive disease by abnormal accumulation of intracellular glycogen.1 Mutations in genes encoding G-6-P or G-6-Pase lead to dysfunction of the body's glycogen metabolism.Without adequate metabolic treatment,patients with GSD can die during infancy or childhood from severe hypoglycemia and acidosis.The patient's symptoms generally achieve remission during adolescence,except in rare cases when cirrhosis of the liver or myopathy occurs.Once GSD is identified in adults,the patients are often accompanied by many complications,such as fasting hypoglycemia. | Maohui Yin Lei Chang Ping Jiang Zhiyong Yang Zhonglin Zhang Wanyu Zhang Zhisu Liu | 2023 | Genes & Diseases2023，10，3： | 0 |
| 17 | Molecular Reactivity and Interface Stability Modification in In-Situ Gel Electrolyte for High Performance Quasi-Solid-State Lithium Metal Batteries显示文摘Quasi-solid-state lithium metal battery is a promising candidate for next generation high energy density and high safety power supply.Despite intensive efforts on electrolytes,uncontrolled interfacial reactions on lithium with electrolyte and patchy interfacial contacts still hinder its practical process.Herein,we bring in rationally designed F contained groups into polymer skeleton via in-situ gelation for the first time to establish quasi-solid-state battery.This method achieves a capacity retention of 90%after 1000 cycles at 0.5C with LiFePO_(4)cathodes.The interface constructed by polymer skeleton and reaction with–CF_(3)lead to the predicted solid electrolyte interface species with high stability.Furthermore,we optimize molecular reactivity and interface stability with regulating F contained end groups in the polymer.Comparisons on different structures reveal that high performance solid stable lithium metal batteries rely on chemical modification as well as stable polymer skeleton,which is more critical to construct robust and steady SEI with uniform lithium deposition.New approach with functional groups regulation proposes a more stable cycling process with a capacity retention of 94.2%at 0.5C and 87.6%at 1C after 1000 cycles with LiFePO_(4) cathodes,providing new insights for the practical development of quasi-solid-state lithium metal battery. | Qiyu Wang Xiangqun Xu Bo Hong Maohui Bai Jie Li Zhian Zhang Yanqing Lai | 2023 | Energy & Environmental Materials2023，6，3： | 0 |
| 18 | Development of data-driven thermal sensation prediction model using quality-controlled databases显示文摘Predicting the thermal sensations of building occupants is challenging,but useful for indoor environment conditioning.In this study,a data-driven thermal sensation prediction model was developed using three quality-controlled thermal comfort databases.Different machine-learning algorithms were compared in terms of prediction accuracy and rationality.The model was further improved by adding categorical inputs,and building submodels and general models for different contexts.A comprehensive data-driven thermal sensation prediction model was established.The results indicate that the multilayer perceptron(MLP)algorithm achieves higher prediction accuracy and more rational results than the other four algorithms in this specific case.Labeling AC and NV scenarios,climate zones,and cooling and heating seasons can improve model performance.Establishing submodels for specific scenarios can result in better thermal sensation vote(TSV)predictions than using general models with or without labels.With 11 submodels corresponding to 11 scenarios,and three general models without labels,the final TSV prediction model achieved higher prediction accuracy,with 64.7%–90.7%fewer prediction errors(reducing SSE by 3.2–4.9)than the predicted mean vote(PMV).Possible applications of the new model are discussed.The findings of this study can help in development of simple,accurate,and rational thermal sensation prediction tools. | Xiang Zhou Ling Xu Jingsi Zhang Lie Ma Mingzheng Zhang Maohui Luo | 2022 | Building Simulation2022，15，12： | 0 |
| 19 | Hainan,a Rising Star on the Chinese Economic Horizon显示文摘IN April 2018,China announced the plan to build Hainan Province into a pilot free trade zone,gradually exploring and steadily promoting the establishment of a free trade port with Chinese characteristics.While embracing its new mission,the largest special economic zone in China welcomed historic opportunities.Since then,Hainan,has been advancing reforms revolved around institutional innovation,keeping itself aligned with international economic and trade rules,and taking initiative in opening more sectors to foreign investors. | WU MAOHUI ZHOU HUIMIN | 2020 | China Today2020，69，6： | 0 |
| 20 | Extrapolation Method for Cauchy Principal Value Integral with Classical Rectangle Rule on Interval显示文摘In this paper,the classical composite middle rectangle rule for the computation of Cauchy principal value integral(the singular kernel 1=(x-s))is discussed.With the density function approximated only while the singular kernel is calculated analysis,then the error functional of asymptotic expansion is obtained.We construct a series to approach the singular point.An extrapolation algorithm is presented and the convergence rate of extrapolation algorithm is proved.At last,some numerical results are presented to confirm the theoretical results and show the efficiency of the algorithms. | Maohui Xia Jin Li | 2018 | Computer Modeling in Engineering & Sciences2018，，6： | 0 |
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