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1Differences in changes of potential evaporation in the mountainous and oasis regions of the Tarim basin, northwest China显示文摘Data from eleven meteorological stations in the Tianshan mountains and the north slope of west Kunlun mountains, and eighteen meteorological stations in the Kaidu-Kongque river, Akesu river, Kashiger river and Yankant river oases were examined to assess the differences in changes in potential evaporation from 1960 to 2006 in the mountainous and oasis regions of the Tarim basin and the relationships of these changes to meteorological factors. The decreasing trends in potential evaporation were primarily due to the decrease in the aerodynamic terms in both the mountainous and oasis regions, but the trends in the oasis regions were more pronounced. Based on the complementary relationship between potential and actual evaporation, the decreasing trends in potential evaporation appeared to be related to the increasing trends in precipitation in the mountainous regions and the increasing trends in water consumption in the oasis regions, thus reflecting the different impacts of natural changes and anthropogenic influences.HAN SongJun HU HePing YANG DaWen LIU QunChang 2009Science China(Technological Sciences)2009,52,7:9
2One-pot hydrothermal fabrication of α-Fe_2O_3@C nanocomposites for electrochemical energy storage显示文摘A facile hydrothermal method was developed for the preparation of Fe_2O_3@C nanocomposites using FeCl_3·6H_2O as iron source and glucose as carbon source under alkaline condition. The morphology and structure of the as-prepared product were identified by transmission electron microscopy(TEM), high resolution transmission electron microscopy(HRTEM), field-emission scanning electron microscopy(FESEM),X-ray diffraction(XRD), Raman spectroscopy, Fourier Transform infrared spectroscopy(FTIR), and thermogravimetric analysis(TGA). The as-prepare α-Fe_2O_3@C nanocomposites were employed for supercapacitor electrode material. The synergistic combination of carbon electrical double-layer capacitance and α-Fe_2O_3 pseudo-capacitance established such nanocomposites as versatile platform for high performance supercapacitors. The synthesis method developed here is expected to obtain other metal oxide/carbon composite.Maiyong Zhu Jiarui Kan Jianmei Pan Wenjie Tong Qi Chen Jiacheng Wang Songjun Li 2019Journal of Energy Chemistry2019,28,1:9
3Acclimatization of in Vitro-derived Dendrobium显示文摘The successful ex vitro establishment of Dendrobium plantlets raised in vitro determines the quality of the end product(cut flowers or potted plants) in commercial production for economic gain. When in vitro Dendrobium plantlets are transplanted from the culture room to greenhouse conditions, they may desiccate or wilt rapidly and can die as a result of changes in the environment, unless substantial precautions are taken to adapt plantlets to a new environment. The acclimatization of in vitro-grown Dendrobium plantlets to an ex vitro environment by gradually weaning them towards ambient relative humidity and light levels facilitates better survival of young and physiologically sensitive plantlets.Dendrobium plantlets raised in vitro must thus undergo a period of acclimatization or transitional development to correct anatomical abnormalities and to enhance their physiological performance to ensure survival under ex vitro conditions. The most common approach to improve the survival of Dendrobium plantlets upon transfer to an ex vitro environment is their gradual adaptation to that environment. Under such conditions, plants convert rapidly from a heterotrophic or photomixotrophic state to an autotrophic growth, develop a fully functional root system,and better control their stomatal and cuticular transpiration. Gradual adaptation is carried out in a greenhouse by decreasing relative humidity using fog or mist chambers and by increasing light intensity using shading techniques. This review details the acclimatization and ex vitro survival of Dendrobium plants produced in vitro. This advice is also useful for other orchids.Jaime A.Teixeira da Silva Mohammad Musharof Hossain Madhu Sharma Judit Dobránszki Jean Carlos Cardoso ZENG Songjun 2017Horticultural Plant Journal2017,3,3:4
4Spatio-temporal association analysis of county potential in the Pearl River Delta during 1990-2009显示文摘According to the highway data and some socioeconomic data of 1990, 1994, 2000, 2005 and 2009 of county units in the Pearl River Delta, this paper measured urban integrated power of different counties in different years by factor analysis, and estimated each county's potential in each year by means of expanded potential model. Based on that, the spatio-temporal association patterns and evolution of county potential were analyzed using spatio-temporal autocorrelation methods, and the validity of spatio-temporal association patterns was verified by comparing with spatial association patterns and cross-correlation function. The main results are shown as follows:(1) The global spatio-temporal association of county potential showed a positive effect during the study period. But this positive effect was not strong, and it had been slowly strengthened during 1994–2005 and decayed during 2005–2009. The local spatio-temporal association characteristics of most counties' potential kept relatively stable and focused on a positive autocorrelation, however, there were obvious transformations in some counties among four types of local spatio-temporal association(i.e., HH, LL, HL and LH).(2) The distribution difference and its change of local spatio-temporal association types of county potential were obvious. Spatio-temporal HH type units were located in the central zone and Shenzhen-Dongguan region of the eastern zone, but the central spatio-temporal HH area shrunk to the Guangzhou-Foshan core metropolitan region only after 2000; the spatio-temporal LL area in the western zone kept relatively stable with a surface-shaped continuous distribution pattern, new LL type units emerged in the south-central zone since 2005, the eastern LL area expanded during 1994–2000, but then gradually shrunk and scattered at the eastern edge in 2009; the spatio-temporal HL and LH areas varied significantly.(3) The local spatio-temporal association patterns of county potential among the three zones presented significant disparity, and obvious difference between the eastern and central zones tended to decrease, whereas that between the western zone and the central and eastern zones further expanded.(4) Spatio-temporal autocorrelation methods can efficiently mine the spatio-temporal association patterns of county potential, and can better reveal the complicated spatio-temporal interaction between counties than ESDA methods.MEI Zhixiong XU Songjun OUYANG Jun 2015Journal of Geographical Sciences2015,25,3:2
5Deep Residual Joint Transfer Strategy for Cross-Condition Fault Diagnosis of Rolling Bearings显示文摘Rolling bearings are key components of the drivetrain in wind turbines,and their health is critical to wind turbine operation.In practical diagnosis tasks,the vibration signal is usually interspersed with many disturbing components,and the variation of operating conditions leads to unbalanced data distribution among different conditions.Although intelligent diagnosis methods based on deep learning have been intensively studied,it is still challenging to diagnose rolling bearing faults with small amounts of samples.To address the above issue,we introduce the deep residual joint transfer strategy method for the cross-condition fault diagnosis of rolling bearings.One-dimensional vibration signals are pre-processed by overlapping feature extraction techniques to fully extract fault characteristics.The deep residual network is trained in training tasks with sufficient samples,for fault pattern classification.Subsequently,three transfer strategies are used to explore the generalizability and adaptability of the pre-trained models to the data distribution in target tasks.Among them,the feature transferability between different tasks is explored by model transfer,and it is validated that minimizing data differences of tasks through a dual-stream adaptation structure helps to enhance generalization of the models to the target tasks.In the experiments of rolling bearing faults with unbalanced data conditions,localized faults of motor bearings and planet bearings are successfully identified,and good fault classification results are achieved,which provide guidance for the cross-condition fault diagnosis of rolling bearings with small amounts of training data.Songjun Han Zhipeng Feng 2023Journal of Dynamics, Monitoring and Diagnostics2023,2,1:1
6Adsorption of BSA onto sulfonated microsphere显示文摘HU Jie LI Songjun LIU Bailing 2005Biochem Eng J2005,23,:1
7Carbon isotope analysis for source identification of atmospheric formaldehyde and acetaldehyde in Dinghushan Biosphere Reserve in South China 显示文摘GUO Songjun WEN Sheng WANG Xinming 2009Atmos Environ2009,43,2223:1
8Seasonal and diurnal variations of carbonyl compounds in the urban atmosphere of Guangzhou, China显示文摘Huixiong Quan-Ying Cai Sheng Wen Yuguang Chi Songjun Guo Guoying Sheng Jiamo Fu 2010Science of the Total Environment2010,,17:1
9A study on the adsorption of bovine serume albumin onto electrostatic microspheres:role of surface groups显示文摘Wuke L Songjun L 2007Colloids and surfaces A:Physicochemical and Engineering Aspects2007,295,:1
10The Lp-curvature images of convex bodies and Lp-projection bodies 显示文摘LV Songjun LENG Gangsong 2008Proc Indian Acad Sci2008,118,3:1
11Molecular Recognition and Catalysis by Molecularly Imprinted Polymer Catalysts: Thermodynamic and Kinetic Surveys on the Specific Behaviors显示文摘Kejun Tong Shan Xiao Songjun Li Jing Wang 2008Journal of Inorganic and Organometallic Polymers and Materials2008,,3:1
12Characteristics of atmospheric non-methane hydrocarbons during high PM 10 episodes and normal days in Foshan, China显示文摘Songjun Guo Jihua Tan Yongliang Ma Fumo Yang Yongchan Yu Jiewen Wang 2011Atmospheric Research2011,,3:1
13Symmetry-adapted spherical harmonics method for high- resolution 3D single particle reconstructions显示文摘Liu Hongrong Cheng Lingpeng Zeng Songjun 2008Journal of Structural Biology2008,161,1:1
14The effects of cyclodextrins on polymer preparation显示文摘Hu Jie Zhen Tao Li Songjun 0,,23:1
15Intense blue photo-luminescence of the Tm3+/Yb3+co-doped single-crystallinehexagonal phase NaYF4nanorods?显示文摘Zeng Songjun Ren Guozhong Xu Changfu 2011J Alloy Compd2011,509,5:1
16Intense blue photoluminescence of the Tm 3+ /Yb 3+ co-doped single-crystalline hexagonal phase NaYF 4 nanorods显示文摘Songjun Zeng Guozhong Ren Changfu Xu 2010Journal of Alloys and Compounds2010,,5:1
17A study on the adsorption of bovine serum albumin onto electrostatic microspheres: Role of surface groups 显示文摘Wuke L Songjun L 2007Colloids and Surfaces A: Physicochem Eng Aspects2007,295,:1
18Photoinitiator grafted styrene-butadiene-styrene triblock copolymer显示文摘Guoliang Wu Songjun Zeng Encai Ou 2010Materials Science and Engineering:C2010,30,:1
19Performanceof a Controllable Premixed Combustion Engine Fueled withDimethyl Ether显示文摘SONGJUN HUANG ZHEN’QIAO XINQI’ 2004Energy Conversion and Management2004,45,:1
20Upconversion luminescence and magnetic properties of ligand-free monodisperse lanthanide doped BaGdF 5 nanocrystals显示文摘Changfu Xu Mo Ma Liwen Yang Songjun Zeng Qibin Yang 2011Journal of Luminescence2011,,12:1
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