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| 1 | Ionic liquid mediated CO_2 activation for DMC synthesis显示文摘Promoted catalytic reaction between methanol and CO2 for dimethyl carbonate(DMC) synthesis is conducted over K2CO3/CH3 I catalyst in the presence of ionic liquid under microwave irradiation.The effect of ionic liquids incorporated with microwave irradiation on the yield of DMC is investigated.DMC was found to form at lower temperature in a relative short time,which indicated an enhanced catalytic process by ionic liquid.Among the ionic liquids used,1-butyl-3-methylimidazolium chloride is the most effective promoter.Density functional theory calculations indicate that CO2 bond lengths and angles changed due to the molecular interaction of ionic liquid and CO2,resulting in the activation of CO2 molecules and consequently the acceleration of reaction rate. | Jun Du Jing Shi Zhengfei Li Zuohua Liu Xing Fan Changyuan Tao | 2012 | Journal of Natural Gas Chemistry2012，21，4： | 7 |
| 2 | Short-chain fatty acids can improve lipid and glucose metabolism independently of the pig gut microbiota显示文摘Background:Previous studies have shown that exogenous short-chain fatty acids(SCFAs)introduction attenuated the body fat deposition in conventional mice and pigs.However,limited studies have evaluated the effects of exogenously introduced SCFAs on the lipid and glucose metabolism independently of the gut microbiota.This study was to investigate the effects of exogenous introduction of SCFAs on the lipid and glucose metabolism in a germ-free(GF)pig model.Methods:Twelve hysterectomy-derived newborn pigs were reared in six sterile isolators.All pigs were hand-fed with sterile milk powder for 21 d,then the sterile feed was introduced to pigs for another 21 d.In the second 21-d period,six pigs were orally administrated with 25 mL/kg sterile saline per day and considered as the GF group,while the other six pigs were orally administrated with 25 mL/kg SCFAs mixture(acetic,propionic,and butyric acids,45,15,and 11 mmol/L,respectively)per day and regarded as FA group.Results:Orally administrated with SCFAs tended to increase the adiponectin concentration in serum,enhance the CPT-1 activity in longissimus dorsi,and upregulate the ANGPTL4 mRNA expression level in colon(P<0.10).Meanwhile,the mRNA abundances of ACC,FAS,and SREBP-1C in liver and CD36 in longissimus dorsi of the FA group were decreased(P<0.05)compared with those in the GF group.Besides,the mRNA expression of PGC-1αin liver and LPL in longissimus dorsi tended to(P<0.10)upregulate and downregulate respectively in the FA group.Moreover,oral administration of SCFAs tended to increase the protein level of GPR43(P<0.10)and decrease the protein level of ACC(P<0.10)in liver.Also,oral administration of SCFAs upregulated the p-AMPK/AMPK ratio and the mRNA expressions of GLUT-2 and GYS2 in liver(P<0.05).In addition,the metabolic pathway associated with the biosynthesis of unsaturated fatty acids was most significantly promoted(P<0.05)by oral administration of SCFAs.Conclusions:Exogenous introduction of SCFAs might attenuate the fat deposition and to some extent improve the glucose control in the pig model,which occurred independently of the gut microbiota. | Hua Zhou Bing Yu Jing Sun Zuohua Liu Hong Chen Liangpeng Ge Daiwen Chen | 2021 | Journal of Animal Science and Biotechnology2021，12，4： | 5 |
| 3 | A novel method for extracting vanadium by low temperature sodium roasting from converter vanadium slag显示文摘Long-term high temperature in conventional vanadium extraction process would cause particles to be sintered and wrapped, thus reducing extraction efficiency of vanadium. Based on the purpose of directional conversion and process intensification, this work proposed a combination of low temperature sodium roasting and high efficiency selective oxidation leaching in vanadium extraction. The investigation of the reaction mechanism suggested that the structure of vanadium slag was changed by roasting, which also caused the fracture of spinel.The addition of MnO2 promoted the directional oxidation of low-valent vanadium into high valence. It also found that Na2S2O8 could oxidize low-valent vanadium effectively in leaching. The leaching efficiency of vanadium reached 87.74% under the optimum conditions, including a roasting temperature of 650 ℃, a roasting time of 2.0 h, a molar ratio of sodium-to-vanadium of 0.6, a MnO2(roasting additive) dosage of 5 wt% and a Na2S2O8(leaching oxidant) dosage of 5 wt%. This percentage is 7.18% higher than that of direct roasting-andleaching under the same conditions. | Rongrui Deng Hao Xiao Zhaoming Xie Zuohua Liu Qiang Yu Geng Chen Changyuan Tao | 2020 | Chinese Journal of Chemical Engineering2020，28，8： | 4 |
| 4 | Genome-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 | 2017 | Frontiers of Agricultural Science and Engineering2017，4，3： | 2 |
| 5 | Study 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 | 2023 | Chinese Journal of Chemical Engineering2023，55，3： | 2 |
| 6 | Hybrid MARTE statecharts显示文摘当模特儿和即时、嵌入的系统(MARTE ) 的分析的说明在即时、嵌入的系统的域是统一当模特儿的语言(UML ) 的扩展。尽管 MARTE 时间模型提供支持描述分离、稠密的钟,最大的努力到目前为止被放在分离 MARTE 模型的说明和分析上。探讨混合即时、嵌入的系统,我们建议用 MARTE 和混合自动机的理论扩大 statecharts。我们把这延期混血儿 MARTE 称为 statecharts。它在那在混合自动机上提供改进:逻辑时间变量和测时学的时间变量被统一。混合 MARTE statecharts 的正式句法和语义基于标记的转变系统和实时转变系统被给。作为案例研究,我们与混合 MARTE statecharts 为一个火车控制系统的行为建模表明利益。 | Jing LIU Ziwei LIU Jifeng HE Freederic MALLET Zuohua DING | 2013 | Frontiers of Computer Science2013，7，1： | 2 |
| 7 | Combustion 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 | 2004 | Bioresource Technology2004，，3： | 2 |
| 8 | Effects of water-cooled cover on physiological and production parameters of farrowing sows under hot and humid climates显示文摘The hot and humid climates,as encountered in the southern region of China with the open housing,can adversely impact the sows undergoing heat stress during the most vulnerable period at lactation.Hence,a water-cooled cover system(WCCs)for local cooling has essential practical value to improve productivity.The WCCs was developed for the sow crate of lactating sows separately,which performance was validated with the cooling efficiency in the sow occupied zone(SOZ)and physiological parameters.The results showed that the WCCs for the farrowing sows using aluminium plastic tubes connected in series could reach an appropriate cooling performance in adjacent units.The WCCs could decrease the SOZ air temperature by 3.0-4.5℃under the extremely hot climate when the indoor air temperature was 37℃,and maintain a suitable range(25-30℃)under the typical hot climate(<35℃).The respiration rate and skin temperature of farrowing sows had no significant difference between treatment group(WCC)and control group(sprinkle cooling)when the air temperature was below 30℃,but had a significant difference(p<0.05)when air temperature rose above 30℃.The control sows drank more during hot weather,and the feed intake was significantly lower than the sows with the WCCs(p<0.01).It was concluded that the WCCs could alleviate the heat stress of farrowing sows during typical hot climate. | Pang Zhenzhen Li Baoming Zheng Weichao Lin Baozhong Liu Zuohua | 2016 | International Journal of Agricultural and Biological Engineering2016，9，4： | 2 |
| 9 | Analysis 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 | 2021 | Journal of Advances in Medicine Science2021，4，2： | 1 |
| 10 | Experimental study on engine performance and emissions for an engine fueled with natural gas-hydrogen mixtures 显示文摘 | HUANG Zuohua LIU Bin ZENG Ke | 2006 | Energy & Fuels2006，20，5： | 1 |
| 11 | Combustion characteristics of a direct injection engine fueled with natural gas: Hydrogen mixtures显示文摘 | HUANG Zuohua WANG Jirthua LIU Bing | 2006 | Energy and Fuels2006，20，2： | 1 |
| 12 | Combustion 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 | 2007 | Fuel2007，86，3： | 1 |
| 13 | Experimental study on engine performance and emissions for an engine fueled with natural gas-hydrogen mixtures显示文摘 | Huang Zuohua Liu Bing Zeng Ke | 2006 | Energy and Fuels2006，20，5： | 1 |
| 14 | Experimental investigation on performance and emissions of a spark- ignition engine fuelled with natural gas-hydrogen blends combined with EGR 显示文摘 | Hu Erjiang Huang Zuohua Liu Bing | 2009 | International Journal of Hydro- gen Energy2009，34，1： | 1 |
| 15 | Experimental study on combustion characteristics of a spark-ignition engine fueled with natural gas-hydrogen blends combin- ing with EGR显示文摘 | Hu Erjiang Huang Zuohua Liu Bing | 2009 | International Journal of Hydrogen En- ergy2009，34，2： | 1 |
| 16 | Preparation of Na2CS3with ionic liquid显示文摘 | Changyuan Tao Yangsheng Zhang Zuohua Liu | 2007 | Journal of Central South University of Technology2007，14，3： | 1 |
| 17 | Experimental Study on Engine Performance and Emissions for an Engine fueled with Natural Gas-Hydrogen Mixtures 显示文摘 | Huang Zuohua Liu Bing Zeng Ke | 2006 | Energy and Fuels2006，20，5： | 1 |
| 18 | Experimental Study on Emissions of a Spark-Ignition Engine Fueled with Natural Gas-Hydrogen Blends显示文摘 | Liu Bing Huang Zuohua Zeng Ke | 2008 | Energy & Fuels2008，22，1： | 1 |
| 19 | Combustion characteristics of a direct-Injection natural gas engine under various fuel injection timings显示文摘 | Zeng Ke Huang Zuohua Liu Bing | 2006 | Applied Thermal Engineering2006，26，89： | 1 |
| 20 | Change of 3 Kinds of Enzyme Activity and Soluble Sugar in 3 Chinese Cabbage Varieties with Different Resistance Level During the Process of Plasmodiophora brassicae Infecting Their Roots显示文摘There are different levels of resistance in Chinese cabbage varieties against clubroot.The content of catalase(CAT),peroxidase(POD),phenylalanin ammonia-lyase(PAL),Super Oxide Dismutase(SOD)and soluble sugar activities of 3cultivars with different clubroot-resistant levelswere detected after inoculation in this study.The results suggest that the changing rates of CAT,PAL and SOD contents of resistance cultivars after inoculation were higher than those of susceptible cultivars(Baigengbaiye>Zaobaicaitai>Huangjinxiaobaicai);the POD activities of resistance cultivars reached a peak on an earlier day than those of susceptible cultivars;the increasing rate of soluble sugar of susceptible cultivars was higher than that of the resistance cultivars,and ended with two peaks.Therefore,the four enzymes(CAT,POD,PAL and SOD)and soluble sugar may be used as physiological and biochemical reference indexes for the resistance identification to clubroot after inoculation with P.brassicae. | Zuohua REN Hu ZHOU Xiaoli HUANG Qiong SONG Minjie LIU Erming LIU | 2015 | Agricultural Science & Technology2015，16，2： | 1 |
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