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| 1 | Carbonyl emissions from heavy-duty diesel vehicle exhaust in China and the contribution to ozone formation potential显示文摘Fifteen heavy-duty diesel vehicles were tested on chassis dynamometer by using typical heavy duty driving cycle and fuel economy cycle. The air from the exhaust was sampled by 2,4-dinitrophenyhydrazine cartridge and 23 carbonyl compounds were analyzed by high performance liquid chromatography. The average emission factor of carbonyls was 97.2 mg/km, higher than that of light-duty diesel vehicles and gasoline-powered vehicles. Formaldehyde, acetaldehyde, acetone and propionaldehyde were the species with the highest emission factors. Main influencing factors for carbonyl emissions were vehicle type, average speed and regulated emission standard, and the impact of vehicle loading was not evident in this study. National emission of carbonyls from diesel vehicles exhaust was calculated for China, 2011, based on both vehicle miles traveled and fuel consumption. Carbonyl emission of diesel vehicle was estimated to be 45.8 Gg, and was comparable to gasolinepowered vehicles(58.4 Gg). The emissions of formaldehyde, acetaldehyde and acetone were 12.6, 6.9, 3.8 Gg, respectively. The ozone formation potential of carbonyls from diesel vehicles exhaust was 537 mg O3 /km, higher than 497 mg O3 /km of none-methane hydrocarbons emitted from diesel vehicles. | Dong Dong Min Shao Yue Li Sihua Lu Yanjun Wang Zhe Ji Dagang Tang | 2014 | Journal of Environmental Sciences2014，26，1： | 20 |
| 2 | Prediction of permafrost changes in Northeastern China under a changing climate显示文摘Northeastern China has the second largest expanse of permafrost in China,primarily known as Xing'an-Baikal permafrost.Located on the southeastern edges of the Eurasian cryolithozone,the permafrost is thermally unstable and ecologically sensitive to external changes.The combined impacts of climatic,environmental,and anthropogenic changes cause 3-dimensional degradation of the permafrost.To predict these changes on the southern limit and ground temperature of permafrost in Northeastern China,an equivalent latitude model (ELM) for the mean annual ground surface temperature (MAGSTs) was proposed,and further improved to take into account of the influences of vegetation and snow-cover based on observational data and using the SHAW model.Using the finite element method and assuming a climate warming rate of 0.048°C a-1,the ELM was combined with the unsteady-state heat conduction model to simulate permafrost temperatures at present,and to predict those after 50 and 100 a.The results indicate that at present,sporadic permafrost occurs in the zones with MAGSTs of 1.5°C or colder,and there would still be a significant presence of permafrost in the zones with the present MAGSTs of 0.5°C or colder after 50 a,and in those of-0.5°C or colder after 100 a.Furthermore,the total areal extent of permafrost would decrease from 2.57×105 km2 at present to 1.84×105 km2 after 50 a and to 1.29×105 km2 after 100 a,i.e.,a reduction of 28.4% and 49.8% in the permafrost area,respectively.Also the permafrost would degrade more substantially in the east than in the west.Regional warming and thinning of permafrost would also occur.The area of stable permafrost (mean annual ground temperature,or MAGT≤-1.0°C) would decrease from present 1.07×105 to 8.8×104 km2 after 50 a,and further decrease to 5.6×104 km2 after 100 a.As a result,the unstable permafrost and seasonally frozen ground would expand,and the southern limit of permafrost would shift significantly northwards.The changes in the permafrost environment may adversely affect on ecological environments and engineering infrastructures in cold regions.Avoidance of unnecessary anthropogenic changes in permafrost conditions is a practical approach to protect the permafrost environment. | WEI Zhi JIN HuiJun ZHANG JianMing YU ShaoPeng HAN XuJun JI YanJun HE RuiXia CHANG XiaoLi | 2011 | Science China Earth Sciences2011，54，6： | 15 |
| 3 | An infectious disease of ducks caused by a newly emerged Tembusu virus strain in mainland China显示文摘 | Pixi Yan Youshu Zhao Xu Zhang Dawei Xu Xiaoguang Dai Qiaoyang Teng Liping Yan Jiewen Zhou Xiwen Ji Shumei Zhang Guangqing Liu Yanjun Zhou Yoshihiro Kawaoka Guangzhi Tong Zejun Li | 2011 | Virology2011，，1： | 5 |
| 4 | Two Ultraviolet Radiation Datasets that Cover China显示文摘Ultraviolet(UV) radiation has significant effects on ecosystems, environments, and human health, as well as atmospheric processes and climate change. Two ultraviolet radiation datasets are described in this paper. One contains hourly observations of UV radiation measured at 40 Chinese Ecosystem Research Network stations from 2005 to 2015. CUV3 broadband radiometers were used to observe the UV radiation, with an accuracy of 5%, which meets the World Meteorology Organization's measurement standards. The extremum method was used to control the quality of the measured datasets. The other dataset contains daily cumulative UV radiation estimates that were calculated using an all-sky estimation model combined with a hybrid model. The reconstructed daily UV radiation data span from 1961 to 2014. The mean absolute bias error and root-mean-square error are smaller than 30% at most stations, and most of the mean bias error values are negative, which indicates underestimation of the UV radiation intensity. These datasets can improve our basic knowledge of the spatial and temporal variations in UV radiation. Additionally, these datasets can be used in studies of potential ozone formation and atmospheric oxidation, as well as simulations of ecological processes. | Hui LIU Bo HU Yuesi WANG Guangren LIU Liqin TANG Dongsheng JI Yongfei BAI Weikai BAO Xin CHEN Yunming CHEN Weixin DING Xiaozeng HAN Fei HE Hui HUANG Zhenying HUANG Xinrong LI Yan LI Wenzhao LIU Luxiang LIN Zhu OUYANG Boqiang QIN Weijun SHEN Yanjun SHEN Hongxin SU Changchun SONG Bo SUN Song SUN Anzhi WANG Genxu WANG Huimin WANG Silong WANG Youshao WANG Wenxue WEI Ping XIE Zongqiang XIE Xiaoyuan YAN Fanjiang ZENG Fawei ZHANG Yangjian ZHANG Yiping ZHANG Chengyi ZHAO Wenzhi ZHAO Xueyong ZHAO Guoyi ZHOU Bo ZHU | 2017 | Advances in Atmospheric Sciences2017，34，7： | 2 |
| 5 | An improved condition for master-slave synchronization of Lur'e systems with time de- lay显示文摘 | Xiang Ji Li Yanjun Wei Wei | 2007 | Physics Letters A2007，362，23： | 1 |
| 6 | High harmonic exploring on different materials in dynamic atomic force microscopy显示文摘In atomic force microscopy(AFM), high-frequency components consisted in dynamic tip-sample interaction have been recently demonstrated as a promising technique for exploring more extensive material properties. Here we present an exploratory study of high harmonic atomic force microscopy by force-spectroscopy and high harmonic imaging. Since these components are very weak compared to the fundamental response, we firstly designed a high harmonic cantilever by tuning the second order flexural resonance frequency to an integer 6 times of its fundamental mode(i.e. ω_2=6ω_1). Moreover, it is verified that high harmonic can discern extra features than topographies on different samples with amplitude/frequency modulation(AM/FM) dynamic AFM mode. In AM mode, the first resonance amplitude and 6 th harmonic amplitude were discussed. The 6 th harmonic is more sensitive than the first order response. In FM mode, it is noted that the decaying rate of the 6 th harmonic frequency is approximately 6 multiples to the slope of the fundamental frequency shift when the tip approaches to the surface of sample. This non-destructive method was also adopted to investigate the local interlayer coupling and intercalation in the two-dimensional graphene films tentatively. | ZHENG ZhiYue XU Rui YE ShiLi HUSSAIN Sabir JI Wei CHENG Peng LI YanJun SUGAWARA Yasuhiro CHENG ZhiHai | 2018 | Science China(Technological Sciences)2018，61，3： | 1 |
| 7 | A computer of numerical methods for the analysis of concrete-filled steel tubular structures显示文摘 | Ji Jing Tian Xiaoxia Wang Yanjun | 2006 | Proceedings of 8th International Conference for ASCCS2006，，8： | 1 |
| 8 | Expression of the 78kD glucose-regulated protein is induced by endoplasmic reticulum stress in the development of hepatopulmonary syndrome显示文摘 | Huiying Zhang Minli Lv Jiantao Jia Zhongfu Zhao Lili Zhang Lina Lai Yanjun Wu Baohong Li Chen Li Yan Liu Xujiong Li Xiaoxia Tian Hui Pang Jianhong Guo Limin Wang Yimin Fan Cuiying Zhang Jingquan Ji Dewu Han Cheng Ji | 2013 | Gene2013，，： | 1 |
| 9 | Complex genetic architecture underlying the plasticity of maize agronomic traits显示文摘Phenotypic plasticity is the ability of a given genotype to produce multiple phenotypes in response to changing environmental conditions.Understanding the genetic basis of phenotypic plasticity and establishing a predictive model is highly relevant to future agriculture under a changing climate.Here we report findings on the genetic basis of phenotypic plasticity for 23 complex traits using a diverse maize population planted at five sites with distinct environmental conditions.We found that latituderelated environmental factors were the main drivers of across-site variation in flowering time traits but not in plant architecture or yield traits.For the 23 traits,we detected 109 quantitative trait loci(QTLs),29 for mean values,66 for plasticity,and 14 for both parameters,and 80%of the QTLs interacted with latitude.The effects of several QTLs changed in magnitude or sign,driving variation in phenotypic plasticity.We experimentally validated one plastic gene,ZmTPS14.1,whose effect was likely mediated by the compensation effect of ZmSPL6 from a downstream pathway.By integrating genetic diversity,environmental variation,and their interaction into a joint model,we could provide site-specific predictions with increased accuracy by as much as 9.9%,2.2%,and 2.6%for days to tassel,plant height,and ear weight,respectively.This study revealed a complex genetic architecture involving multiple alleles,pleiotropy,and genotype-byenvironment interaction that underlies variation in the mean and plasticity of maize complex traits.It provides novel insights into the dynamic genetic architecture of agronomic traits in response to changing environments,paving a practical way toward precision agriculture. | Minliang Jin Haijun Liu Xiangguo Liu Tingting Guo Jia Guo Yuejia Yin Yan Ji Zhenxian Li Jinhong Zhang Xiaqing Wang Feng Qiao Yingjie Xiao Yanjun Zan Jianbing Yan | 2023 | Plant Communications2023，4，3： | 1 |
| 10 | Low-cycle Fatigue Properties of an Ultrafine-grained Magnesium Alloy Processed by Equal-channel Angular Pressing显示文摘Magnesium alloy Mg-3%Al-1%Zn (AZ31) billets prepared from equal channel angular pressing (ECAP) were utilized in low-cycle fatigue tests in order to investigate their fatigue life. Fully reversed strain-controlled tension-compression fatigue tests were conducted at the frequency of 1 Hz in ambient air. The microstructures were examined by optical microscopy (OM) and scanning electron microscopy (SEM). The hysteresis loops of the ECAP processed and conventionally extruded samples display obviously different shapes in the total strain amplitude range from 0.2% to 0.6%. Accordingly, the low cycle fatigue lives of ECAP processed samples are found to be longer than those of extruded samples, which can be attributed to the different in the hysteresis energy incorporating tensile strain energy. | 朱荣 WU Yanjun JI Wenqing | 2012 | Journal of Wuhan University of Technology(Materials Science)2012，27，6： | 1 |
| 11 | Prevention and Control Measures of Citrus Huanglongbing and Application Ideas of Repellent Plants显示文摘Citrus huanglongbing is the most infectious and destructive disease in citrus production in the world.The essential characteristics,transmission routes and severity,and diagnosis of citrus huanglongbing,as well as control methods and effects of Diaphorina citri are summarized,and the application ideas of repellent plants is put forward. | Guo Yanjun Cui Tiecheng Hu Yibo Guo Liying Ji Qianhua Jiang Hui Zhang Aifang | 2021 | Plant Diseases and Pests2021，12，1： | 0 |
| 12 | Heterostructuring noble-metal-free 1T'phase MoS_(2) with g-C_(3)N_(4) hollow nanocages to improve the photocatalytic H2 evolution activity显示文摘In this work,we report the preparation of 1T'-MoS_(2)/g-C_(3)N_(4) nanocage(NC)heterostructure by loading 2D semi-metal noble-metal-free 1T'-MoS_(2) on the g-C_(3)N_(4) nanocages(NCs).DFT calculation and experimental data have shown that the 1T'-MoS_(2)/g-C_(3)N_(4) NC heterostructure has a stronger light absorption capacity and larger specific surface area than pure g-C_(3)N_(4) NCs and g-C_(3)N_(4) nanosheets(NSs),and the presence of the co-catalysts 1T'-MoS_(2) can effectively inhibit the photoinduced carrier recombination.As a result,the 1T'-MoS_(2)/g-C_(3)N_(4) NC heterostructure with an optimum 1T'-MoS_(2) loading of 9 wt%displays a hydrogen evolution rate of 1949 mmol h^(-1) g^(-1),162.4,1.2,1.5,1.6 and 1.2 times than pure g-C_(3)N_(4) NCs(12 mmol h^(-1) g^(-1)),Pt/g-C_(3)N_(4) NCs(1615 mmol h^(-1) g^(-1))and Pt/g-C_(3)N_(4) nanosheets(NSs,1297 mmol h^(-1) g^(-1)),1T'-MoS_(2)/g-C_(3)N_(4) nanosheets(1216 mmol h^(-1) g^(-1))and 2H-MoS_(2)/g-C_(3)N_(4) nanocages(1573 mmol h^(-1) g^(-1)),respectively,and exhibits excellent cycle stability.Therefore,1T'-MoS_(2)/g-C_(3)N_(4) NC heterostructure is a suitable photocatalyst for green H_(2) production. | Yanjun Xue Yinghong Ji Xinyu Wang Huanli Wang Xiaobo Chen Xiaoli Zhang Jian Tian | 2023 | Green Energy & Environment2023，8，3： | 0 |
| 13 | The Pacific Ocean Is Wide Enough For All显示文摘The Pacific Region seems to be deteriorating into a high-risk area.Building an overarching Trans-Pacific Security Cooperation Architecture is the call of the hour.The aim is to fill the vacuum of a region-wide all-embracing arrangement to compensate for the deficiencies of existing multi-lateral mechanisms.Fortunately,the Pacific Ocean offers ample space to accommodate all players in their pursuit of shared peace and common development. | Ji Zhiye Yuan Peng Feng Yujun Du Yanjun Wang Honggang Sun Ru Chen Xiangyang Lou Chunhao Ma Zhongshi | 2014 | Contemporary International Relations2014，24，6： | 0 |
| 14 | Effects of Temperature and Humidity Changes inside and outside Insect-proof Net in the Spring on the Spring Shoot Growth of Citrus Shatangju显示文摘The experiment was mainly used to study the effect of insect-proof net mulching cultivation technology on the temperature and humidity of the greenhouse and the spring shoot growth of citrus Shatangju. The results showed that the 40-mesh translucent insect-proof net had a positive effect on the spring shoot growth of Shatangju in the spring from January to April. In the meantime,according to the change of the temperature and humidity inside and outside the insect-proof net and the change of quantity of Aleyrodidae,Tetranychidae and Phyllocnisidae,it was found that the role of insect-proof net in enhancing the spring shoot growth of Shatangju was possibly achieved by the regulation of citrus pests and the temperature and humidity inside the net. | Xiaofeng ZHANG Yanjun GUO Hui JIANG Liying GUO Xiqin ZHOU Yaping HU Qianhua JI | 2018 | Asian Agricultural Research2018，10，1： | 0 |
| 15 | Production Mode and Economic Benefit of Improved No-tillage Intercropping with Potato in New Mode Citrus Orchard显示文摘[Objectives]In terms of increasing the utilization of land in agriculture and the per unit area yield,intercropping is the most popular farming method.[Methods]Based on the climate and soil conditions in Zhaoqing,this experiment explored the improved mode of no-tillage intercropping winter potato with citrus in the new high-ridge,wide-row and dense-plant cultivation mode citrus orchard.Taking the conventional tillage and film-mulched intercropping as the control,it studied the adaptability of intercropping,evaluated the quality,and analyzed its economic benefits.[Results]The early emergence rate of improved no-tillage intercropping cultivation was slightly higher than that of conventional tillage and film-mulched intercropping,but the difference of final emergence rate was not significant,indicating that improved no-tillage intercropping cultivation could provide excellent potato emergence environment.Under the conventional tillage and improved no-tillage intercropping cultivation mode,the change trend of the potato's plant height,main stem thickness,crown diameter and number of leaflet is the same.The change rule of the crown diameter of the film-mulched intercropping cultivation method is similar to that of the plant height,both have a large increase in the late growth stage.The potato yield of improved no-tillage intercropping cultivation were 22747.5 kg/ha,and the proportions of potatoes of each grade were 11.85%,35.61%,37.63%and 14.91%,respectively.The content of dry matter,Vc,soluble protein,starch and amino acid in the main nutrients of the potato under the improved no-tillage intercropping mode is not significantly different from that of the film-mulched intercropping cultivation.The changing trend of reducing sugar content showed that the reducing sugar content of no-tillage intercropping cultivation was the highest(0.466%).Through evaluating the eating characteristics of potatoes from the flavor,taste,texture and appearance after chewing,the three cultivation methods have little difference.In the no-tillage intercropping cultivation technology,the growth of potatoes consumes part of the nutrients in the soil between the rows of the citrus orchard,but it does not exerts a significant impact on the surrounding citrus trees.Compared with the film-mulched intercropping cultivation,the improved no-tillage intercropping cultivation method does not require the expense of mulched,the cost of fertilizer is low,and labor costs are saved,so a net income of 27075 yuan/ha can be obtained.[Conclusions]From the perspective of orchard intercropping,it has achieved the effect of improving soil utilization and increasing output without reducing the edible quality of potatoes. | Yanjun GUO Yibo HU Qianhua JI Liying GUO Hui JIANG Fengmei YANG Xianwei CAO | 2020 | Asian Agricultural Research2020，12，9： | 0 |
| 16 | Evaluation and Exploration of Citrus Germplasm Resources in the Origin of Shatangju(Citrus flamea Hort.ex Tseng Shiyueju)显示文摘[Objectives]To protect the local rare citrus germplasm resources and further develop and cultivate new citrus varieties.[Methods]The germplasm resources of Shatangju(Citrus flamea Hort.Ex Tseng Shiyueju)in Sihui City of Guangdong Province and other 8 citrus varieties from the same origin were evaluated.The appearance characteristics of tree shape,the length and thickness of shoot at each shoot stage,the appearance characteristics of leaves and the fruit quality of each variety were investigated.[Results]Through the comparison of various citrus varieties grafted with sour mandarin,the results showed that the overall advantages of the length and thickness of the shoots of Shatang tangerine in summer and autumn were more prominent,which was conducive to fruit setting.The sprouting time of the three shoots of each variety was different,and there were sporadic sprouting phenomena in different seasons,so the growth was different,and the length and thickness of the shoots were different in different seasons.There were significant differences in shoot length and diameter among different varieties in the same season.The coefficient of variation of Shatangju's leaves was low,and the traits were stable;leaf shape,leaf base shape,leaf margin and other indicators among the three shoots of the same variety and the differences among the same shoots of different varieties were compared.All varieties had strong flavor,separately sweet and sour,sweet and sweet taste.Shatangju has many segments,orange pericarp,rough texture,easy peeling,and high oblate fruit shape.The orange pericarp was favored by the participants,while the rough and thick peel was not favored by the participants.[Conclusions]Based on the improvement of local varieties,it is recommended to improve the smoothness of pericarp,reducing the thickness of pericarp and improving the flavor of fruit will be conducive to increasing sales.In the cultivation process of various quality resources,especially in the period of fruit growth and development,the plan of nutrition and fertilization should be formulated according to the rules of fruit growth and development,the rules of yield formation and the rules of quality composition,so as to establish the integrated nutrient management system of various varieties. | Yanjun GUO Qianhua JI Liying GUO Guochan HUANG Bingwa FANG Liujian HUANG Hui JIANG Fengmei YANG Yaping HU | 2023 | Asian Agricultural Research2023，15，10： | 0 |
| 17 | Direct incorporation of paraffin wax as phase change material into mass concrete for temperature control: mechanical and thermal properties显示文摘Taking advantage of heat absorbing and releasing capability of phase change material(PCM),Paraffin wax-based concrete was prepared to assess its automatic temperature control performance.The mechanical properties of PCM concrete with eight different Paraffin wax contents were tested by the cube compression test and four-point bending test.The more Paraffin wax incorporated,the greater loss of the compressive strength and bending strength.Based on the mechanical results,four contents of Paraffin wax were chosen for studying PCM concrete's thermal properties,including thermal conductivity,thermal diffusivity,specific heat capacity,thermal expansion coefficient and adiabatic temperature rise.When the Paraffin wax content increases from 10%to 20%,the thermal conductivity and the thermal diffusivity decrease from 7.31 kJ/(m·h·°C)to 7.10 kJ/(m·h·°C)and from 3.03×10−3 m2/h to 2.44×10−3 m2/h,respectively.Meanwhile the specific heat capacity and thermal expansion coefficient rise from 5.38×10−1 kJ/(kg·°C)to 5.76×10−1 kJ/(kg·°C)and from 9.63×10−6/°C to 14.02×10−6/°C,respectively.The adiabatic temperature rise is found to decrease with an increasing Paraffin wax content.Considering both the mechanical and thermal properties,15%of Paraffin wax was elected for the mass concrete model test,and the model test results confirm the effect of Paraffin wax in automatic mass concrete temperature control. | Tao Luo JuanJuan Ma Fang Liu MingYi Zhang ChaoWei Sun YanJun Ji XiaoSa Yuan | 2021 | Research in Cold and Arid Regions2021，13，1： | 0 |
| 18 | Urine biomarkers discovery by metabolomics and machine learning for Parkinson’s disease diagnoses显示文摘Parkinson’s disease(PD)is a complex neurological disorder that typically worsens with age.A wide range of pathologies makes PD a very heterogeneous condition,and there are currently no reliable diagnostic tests for this disease.The application of metabolomics to the study of PD has the potential to identify disease biomarkers through the systematic evaluation of metabolites.In this study,urine metabolic profiles of 215 urine samples from 104 PD patients and 111 healthy individuals were assessed based on liquid chromatography-mass spectrometry.The urine metabolic profile was first evaluated with partial leastsquares discriminant analysis,and then we integrated the metabolomic data with ensemble machine learning techniques using the voting strategy to achieve better predictive performance.A combination of 8-metabolite predictive panel performed well with an accuracy of over 90.7%.Compared to control subjects,PD patients had higher levels of 3-methoxytyramine,N-acetyl-l-tyrosine,orotic acid,uric acid,vanillic acid,and xanthine,and lower levels of 3,3-dimethylglutaric acid and imidazolelactic acid in their urine.The multi-metabolite prediction model developed in this study can serve as an initial point for future clinical studies. | Xiaoxiao Wang Xinran Hao Jie Yan Ji Xu Dandan Hu Fenfen Ji Ting Zeng Fuyue Wang Bolun Wang Jiacheng Fang Jing Ji Hemi Luan Yanjun Hong Yanhao Zhang Jinyao Chen Min Li Zhu Yang Doudou Zhang Wenlan Liu Xiaodong Cai Zongwei Cai | 2023 | Chinese Chemical Letters2023，34，10： | 0 |
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