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63篇 您的检索式:作者名="Zuohua Wang"
    题名 作者 年代 出处 被引量
1Measurement of laminar burning velocities and analysis of flame stabilities for hydrogen-air-diluent premixed mixtures显示文摘The laminar burning velocities and Markstein lengths of the hydrogen-air-diluent mixtures were meas-ured at different equivalence ratios (0.4―1.5), different diluents (N2, CO2 and 15%CO2+85%N2) and di-lution ratios (0, 0.05, 0.10 and 0.15) by using the outwardly expanding flame. The influences of flame stretch rate on the flame propagation characteristics were analyzed. The results show that both the laminar burning velocities and the Markstein lengths of the hydrogen-air-diluent mixtures decrease with the increase of dilution ratio. The decrease in Markstein lengths means that adding diluents into the hydrogen-air mixtures will decrease the diffusional-thermal instability of the flame front. For a specified dilution ratio, the laminar burning velocities give their maximum values at an equivalence ratio of 1.8. The Markstein lengths increase with the increase of the equivalence ratio monotonously regardless of the diluents. The study shows that CO2 as the diluent has a greater impact on the laminar flame speed and the flame front stability than N2 as the diluent.HU ErJiang HUANG ZuoHua HE JiaJia JIN Chun MIAO HaiYan WANG XiBin 2009Chinese Science Bulletin2009,54,5:4
2Experimental and analytical study on biodiesel and diesel spray characteristics under ultra-high injection pressure显示文摘Xiangang Wang Zuohua Huang Olawole Abiola Kuti Wu Zhang Keiya Nishida 2010International Journal of Heat and Fluid Flow2010,,4:3
3Genome-wide analysis reveals selection for Chinese Rongchang pigs显示文摘Livestock have undergone domestication and consequently strong selective pressure on genes or genomic regions that control desirable traits. To identify selection signatures in the genome of Chinese Rongchang pigs, we generated a total of about 170 Gb of DNA sequence data with about 6.4-fold coverage for each of six female individuals. By combining these data with the publically available genome data of 10 Asian wild boars,we identified 449 protein-coding genes with selection signatures in Rongchang pigs, which are mainly involved in growth and hormone binding, nervous system development, and drug metabolism. The accelerated evolution of these genes may contribute to the dramatic phenotypic differences between Rongchang pigs and Chinese wild boars. This study illustrated how domestication and subsequent artificial selection have shaped patterns of genetic variation in Rongchang pigs and provides valuable genetic resources that can enhance the use of pigs in agricultural production and biomedical studies.Lei CHEN Shilin TIAN Long JIN Zongyi GUO Dan ZHU Lan JING Tiandong CHE Qianzi TANG Siqing CHEN Liang ZHANG Tinghuan ZHANG Zuohua LIU Jinyong WANG Mingzhou LI 2017Frontiers of Agricultural Science and Engineering2017,4,3:2
4Shock tube study on auto-ignition characteristics of kerosene/air mixtures显示文摘Ignition delay times are obtained for kerosene/air mixtures behind the reflected shock waves at temperatures between 1445 and 1650 K,at a pressure of 0.11 MPa and an equivalence ratio of 1.0.A nebulization device with Laval nozzle is used to nebulize kerosene and form an aerosol phase,which evaporates and diffuses rapidly behind the incident shock waves.Mixtures auto-ignite behind the reflected shock waves.An ICCD is used to visualize the kerosene/air mixture's ignition characteristics.The mixture's ignition intensity increases with increase in initial temperature.Continuous and irregular flames exist below 1515 K while plane and discontinuous flames exist over 1560 K.Ignition delay times decrease with increase in initial temperature.Experimental data shows good agreement with results reported previously in the literature.A new surrogate (consisting of 10% toluene,10% ethylbenzene and 80% n-decane) is proposed for kerosene.Honnet et al.'s mechanism is used to simulate the ignition of kerosene with calculations agreeing well with the experimental data.The sensitivity of reaction H+O2 <=>OH+O,which shows the highest sensitivity to the ignition delay time,increases with an increase in temperature.The chain breaching reaction of CH3 with O2 accelerates the total reaction rate and the H-atom abstraction of n-decane controls the total reaction rate.The rate of production and instantaneous heat production indicate that two reactions,H+O2 <=>OH+O and O+H2 <=>OH+H,are the key reactions to the formation of OH radicals,as well as the main endothermic reaction.However,the reaction of R3 is the main heat release reaction during ignition.Flame structure analysis shows that initial pressure is increased slightly as CO and H2O will appear before main ignition.ZHANG YingJia HUANG ZuoHua WANG JinHua XU ShengLi 2011Chinese Science Bulletin2011,56,13:2
5Study on cavern evolution and performance of three mixers in agitation of yield-pseudoplastic fluids显示文摘The hydrodynamic performance of three mixers single shaft central mixer(SSC), single shaft off-centred mixer(SSO), dual shaft off-centred mixer(DSO), was investigated in the mixing of yield-pseudoplastic fluids(xanthan gum solutions) in the laminar regime. To explore and determine the efficiency of three mixers, both numerical and experimental approaches were adopted. The fluid rheology was described by the Herschel–Bulkley rheological model. Computational fluid dynamics was employed to simulate the apparent viscosity distribution, mixing time, and the flow pattern inside the stirred tank. The developed model was validated through experimentally measured torque. The influence mechanism of the rotational speed and fluid rheology on the cavern evolution was explored deeply. The performances of three mixers in this work were compared at the constant power input and fluid rheology with respect to the flow pattern, mixing time, and mixing efficiency. The results verify that the faster the rotating speed, the greater influence of the fluid rheology on the cavern evolution, and the more uniform apparent viscosity distribution. Moreover, the mixing time decreases continuously as the increasing power consumption per unit volume, and the dimensionless mixing time of DSO mixer was nearly 42.8% and 6.1% shorter than that of SSC and SCO mixer at the same Reynolds number, respectively. According to the mixing efficiency criteria, these data also revealed that DSO was more efficient than SSC and SSO.Songsong Wang Hong Li Changyuan Tao Renlong Liu Yundong Wang Zuohua Liu 2023Chinese Journal of Chemical Engineering2023,55,3:2
6An experimental study of premixed laminar methane/oxygen/argon flames doped with hydrogen at low pressure with synchrotron photoionization显示文摘Laminar premixed stoichiometric methane/hydrogen/oxygen/argon flames were investigated with tun- able synchrotron vacuum ultraviolet (VUV) photoionization and molecular-beam sampling mass spec- trometry techniques. The methane/hydrogen fuel blends with hydrogen volumetric fraction of 0, 20%, 40%, 60% and 80% were studied. All observed flame species, including stable intermediates and radi- cals in the flames, were detected by measuring photoionization mass spectra and photoionization effi- ciency (PIE) spectra. Mole fraction profiles of major species and intermediates were derived by scan- ning burner at some selected photon energies near ionization thresholds. The influence of hydrogen addition on mole fraction of major species and intermediates was analyzed. The results show that the major species mole fraction of CO, CO2 and CH4 decreases with the increase of hydrogen fraction. The mole fraction of intermediates measured in this experiment decreases remarkably with the increase of hydrogen fraction. This would be due to the increase of H and OH radicals by hydrogen addition and the high diffusivity and activity of H radical promoting the chemical reaction. In addition, the increase of H/C ratio with the increase of hydrogen fraction also leads to the decrease of the mole fraction of car- bon-related intermediates and contributes to the decrease of unburned and incomplete combustion products.WANG JinHua HU ErJiana HUANG ZuoHua MA ZhiHao TIAN ZhenYu WANG Jina LI YuYana 2008Chinese Science Bulletin2008,53,8:2
7Combustion behaviors of a compression-ignition engine fuelled with diesel/methanol blends under various fuel delivery advance angles显示文摘Zuohua Huang Hongbing Lu Deming Jiang Ke Zeng Bing Liu Junqiang Zhang Xibin Wang 2004Bioresource Technology2004,,3:2
8Characterization of spray and combustion processes of biodiesel fuel injected by diesel engine common rail system显示文摘Olawole Abiola Kuti Jingyu Zhu Keiya Nishida Xiangang Wang Zuohua Huang 2013Fuel2013,,:2
9Combustion behaviors of a direct-injection engine operating on various fractions of natural gas-hydrogen blends显示文摘Wang Jinhua Huang Zuohua Fang Yu 2007International Journal of Hydrogen Energy2007,32,15:1
10A review of engine application and fundamental study on turbulent premixed combustion of hydrogen enriched natural gas显示文摘The application and fundamental study on turbulent premixed combustion of hydrogen enriched natural gas is reviewed in this paper.Discussions include the combustion characteristics of direct injection engine fueled with hydrogen enriched natural gas,visualization study of direct injection combustion of hydrogen enriched natural gas using a constant volume vessel,and the fundamental study of turbulent premixed combustion of hydrogen enriched natural gas.The effect of additional hydrogen on the combustion process of natural gas engine is investigated from the fundamental view of the interaction between combustion reaction and turbulent flow.WANG JinHua WEI ZhiLong ZHANG Meng HUANG ZuoHua 2014Science China(Technological Sciences)2014,57,3:1
11Analysis of the Role of General Practitioners Services in Rural Areas during the COVID-19 Epidemic显示文摘Since the outbreak of the COVID-19,various regions of China have been rapidly deployed under the leadership of the Central Committee of the Party to actively prevent and control the COVID-19.The rural areas of my country have weak links to the prevention and management of public health emergencies.Problems include lack of medical and health resources and farmers’low awareness of epidemic prevention.Situations that correspond to the prevention and management of the COVID-19 are more serious.As the patient’s first contact and“gatekeeper”in the fight against the epidemic,the general practitioner is responsible for the“first visit-subsequent ongoing intervention”.This article is about the prevention and control of the COVID-19 epidemics and epidemic prevention in terms of dissemination of knowledge,informed crowd control,joint prevention and control,and standardized management of people.This is a summary of the efforts of general practitioners.Quarantine at home,interactive referrals to medical consortiums,special care for contracted families.The function during the management period aims to analyze the role played by general practitioners during the epidemic and to provide new ideas for the prevention and management of the epidemic.Provide more targeted general practitioner-style services in rural areas to promote the implementation and improvement of health and poverty alleviation.The health level of the rural population provides a theoretical standard.Zuohua Liu Feiya Li Zihan Liu Qiuxia Wu Xiangyu Li Qiang Wang 2021Journal of Advances in Medicine Science2021,4,2:1
12Combustion characteristics of a direct injection engine fueled with natural gas: Hydrogen mixtures显示文摘HUANG Zuohua WANG Jirthua LIU Bing 2006Energy and Fuels2006,20,2:1
13Combustion characteristics of a direct-injection engine fueled with natural gas: Hydrogen blends under different ignition timings显示文摘HUANG Zuohua WANG Jirthua LIU Bing 2007Fuel2007,86,3:1
14Experimental and Analytical Study on Biodiesel and Diesel Spray Characteristics Under Ultra-High Injection Pressure 显示文摘Wang Xiangang Huang Zuohua Kuti O A 2010International Journal of Heat and Fluid Flow2010,31,:1
15Combustion and emission characteristics of a diesel engine fuelled with diesel–propane blends显示文摘Zhihao Ma Zuohua Huang Chongxiao Li Xinbin Wang Haiyan Miao 2007Fuel2007,,8:1
16Numerical study on combustion of diluted methanol-air premixed mixtures显示文摘The effect of nitrogen dilution on the premixed combustion characteristics and flame structure of laminar premixed methanol-air-nitrogen mixtures are analyzed numerically based on an extended methanol oxidation mechanism. The laminar burning velocities, the mass burning fluxes, the adiabatic flame temperature, the global activation temperature, the Zeldovich number, the effective Lewis number and the laminar flame structure of the methanol-air-nitrogen mixtures are obtained under different nitrogen dilution ratios. Comparison between experiments and numerical simulations show that the extended methanol oxidation mechanism can well reproduce the laminar burning velocities for lean and near stoichiometric methanol-air-nitrogen mixtures. The laminar burning velocities and the mass burning fluxes decrease with the increase of nitrogen dilution ratio and the effect is more obvious for the lean mixture. The effective Lewis number of the mixture increases with the increase of nitrogen dilution ratio, and the diffusive-thermal instability of the flame front is decreased by the nitrogen addition. Nitrogen addition can suppress the hydrodynamic instability of methanol-air-nitrogen flames. The decrease of the mole fraction of OH and H is mainly responsible for the suppressed effect of nitrogen diluent on the chemical reaction in the methanol-air-nitrogen laminar premixed flames, and the NOx and formaldehyde emissions are decreased by the nitrogen addition.Zheng JianJun Zhang ZhiYuan Huang ZuoHua Hu ErJiang Tang ChengLong Wang JinHua 2010Chinese Science Bulletin2010,55,9:1
17Measurement of laminar burning velocity of dimethyl ether-air premixed mixtures 显示文摘HUANG Zuohua WANG Qian YU Jinrong 2007Fuel2007,86,15:1
18Experimental and modeling study of the effects of adding oxygenated fuels to premixed n -heptane flames显示文摘Gen Chen Wu Yu Jin Fu Jun Mo Zuohua Huang Jiuzhong Yang Zhandong Wang Hanfeng Jin Fei Qi 2012Combustion and Flame2012,,7:1
19Study on dimethyl ether-air premixed mixture com- bustion with a constant volume vessel 显示文摘HUANG Zuohua WANG Qian MIAO Haiyan 2007Energy and Fuels2007,21,4:1
20Measurement of laminar burning velocity of dimethyl ether-air premixed mixtures 显示文摘HUANG Zuohua WANG Qian YU Jinrong 2007Fuel2007,86,15:1
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