|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Relationship between the eating quality and the physico-chemical properties of high grain quality rice in China | CHEN Neng,ZHU Zhiwei,ZHANG Boping,ZHENG Youchuan,and Xie Lihong,CNRRI,Hangzhou 310006,China | 1997 | Chinese Rice Research Newsletter1997，5，1： | 4 |
| 2 | Changes in soil carbon sequestration and soil respiration following afforestation on paddy fields in north subtropical China显示文摘Aims Although many studies have reported net gains of soil organic carbon(SOC)after afforestation on croplands,this is uncertain for Chinese paddy rice croplands.Here,we aimed to evaluate the effects of affores-tation of paddy rice croplands on SOC sequestration and soil respiration(R).Such knowledge would improve our understanding of the efctive-ness of various land use options on greenhouse gas mitigation in China.Methods The investigation was conducted on the Chongming Island,north subtropical China.Field sites were reclaimed from coastal salt marshes in the 1960s,and soils were homogeneous with simple land use:histories.SOC stocks and R,levels were monitored over one year in a paddy rice cropland,an evergreen and a deciduous broad-leaved plantation established on previous paddy fields and a reference fal-low land site never cultivated.Laboratory incubation of soil under fast-changing temperatures was used to compare the temperature sensitivity(Q10)of SOC decomposition across land uses.Important Findings After 15-20 years of afforestation on paddy fields,SOC concentra-tion only slightly increased at the depth of 0--5 cm but decreased in deeper layers,which resulted in a net loss of SOC stock in the top 40cm.Seasonal increase of sOC was observed during the rice-growing period in croplands but not in afforested soils,suggest-ing a stronger SOC sequestration by paddy rice cropping.However,SOC sequestered under cropping was more labile,as indicated by its higher contents of dissolved organic carbon and microbial bio-mass.Also,paddy soils had higher annual R,than afforested soils;R,abruptly increased after paddy fields were drained and plowed and remained distinctively high throughout the dry farming period.Laboratory incubation revealed that paddy soils had a much higher Q10 of SOC decomposition than afforested soils.Given that tem-perature was the primary controller of R,in this region,it was con-cluded that despite the stronger SOC sequestration by paddy rice cropping,its SOC was less stable than in afforested systems and might be more easily released into the atmosphere under global warming. | Jun Cui Rongjuan Zhang Naishun Bu Huabin Zhang Boping Tang Zhaolei Li Lifeng Jiang Jiakuan Chen Changming Fang | 2013 | Journal of Plant Ecology2013，6，3： | 4 |
| 3 | Penumbral imaging and numerical evaluation of large area source neutron imaging system显示文摘The fusion neutron penumbral imaging system Monte Carlo model was established. The transfer functions of the two discrete units in the neutron source were obtained in two situations:Imaging in geometrical near-optical and real situation. The spatial resolutions of the imaging system in two situations were evaluated and compared. The penumbral images of four units in the source were obtained by means of 2-dimensional (2D) convolution and Monte Carlo simulation. The penumbral images were reconstructed with the same method of filter. The same results were confirmed. The encoding essence of penumbral imaging was revealed. With MCNP(Monte Carlo N-particle) simulation,the neutron penumbral images of the large area source (200 μm×200 μm) on scintillation fiber array were obtained. The improved Wiener filter method was used to reconstruct the penumbral image and the source image was obtained. The results agree with the preset neutron source image. The feasibility of the neutron imaging system was verified. | YueLei Wu HuaSi Hu BoPing Zhang LinBo Li Da Chen Qing Shan Jie Zhu | 2009 | Science China(Technological Sciences)2009，52，9： | 3 |
| 4 | Thermoelectric properties of Cu y Bi x Sb 2? x ? y Te 3 alloys fabricated by mechanical alloying and spark plasma sintering显示文摘 | Chen Chen Boping Zhang Dawei Liu Zhenhua Ge | 2012 | Intermetallics2012，，： | 1 |
| 5 | De novo as- sembly and characterization of root transcriptome using Illumina paired-end sequencing and development of cSSR markers in sweetpotato (lpomoea batatas)显示文摘 | Wang Zhangying Fang Boping Chen Jingyi | 2010 | BMC Genomics2010，11，： | 1 |
| 6 | Effects of Mg on Mechanical Properties of 35CrNi3MoV Steel显示文摘The effects of Mg on the mechanical properties of 35CrNi3MoV steel has been studied in this paper. The results show that Mg has less effect on the tensile properties and hardness of the steel at room temperature, but a right amount of Mg improves impact and fracture toughness and decreases the fracture-transition temperature considerably due to inclusions modification, as well as prolongs the notch stress rupture life dramatically through strengthening grain boundary and modifying boundary carbides. There is an optimum Mg content, which is about 0.0030% in the experimental 35CrNi3MoV | Yu, Yueguang Fu, Jie Wang, Anren Chen, Boping Sun, Wenshan | 1998 | Journal of Materials Science & Technology1998，14，2： | 1 |
| 7 | Modeling and simulation of borstar bimodal polyethylene process based on a rigorous PC-SAFT equation of state model显示文摘 | Keran Chen Zhou Tian Na Luo Boping Liu | 2014 | Industrial & Engineering Chemistry Research2014，53，19： | 1 |
| 8 | Analysis of grey model between seawater environmentalessential factors and phytoplankon dynamics in the Dapeng Bay, the South China Sea显示文摘The relation between the dynamics of phytoplankton and essential environmental factors of seawater has been studied. According to the comparison between environmental factors of seawater. and on the basis of mathematical space theory and the four principles of normalization, even symmetry, globality and proximity, smoothing discrete function, the grey derivative and the grey differential equation have been defined, the grey models and relation to the factors (the seawater physical and chemical factors) were estimated. The calculation results indicate that zooplankton,Mn, Fe and dissolved oxygen are the moot important factors. | Huang Weijian Qi Yuzao Han Boping and Chen Shurong | 1999 | Acta Oceanologica Sinica1999，18，1： | 1 |
| 9 | Short-chain branching distribution oriented model development for borstar bimodal polyethylene process and its correlation with product performance of slow crack growth显示文摘 | Tian Zhou Chen Keran Liu Boping | 2015 | Chemical Engineering Science2015，130，： | 1 |
| 10 | Repetitive DNA Sequences from the X Chromosome of the Spiny Eel (Mastacembelus aculeatus)显示文摘To investigate the characters of repetitive DNA se-quence in the sex chromosomes of the spiny eel (Mastacembelus aculeatus), the X chromosomal library was screened and a family of repetitive sequence, consisting of Ma 1-Ma 6, was isolated. The fluorescence in situ hybridization (FISH) result confirmed that Ma 1- Ma 5 dispersed over sex chromosomes and all autosomes, whereas, Ma 6 is sex chromosome-specific and distributed only on the C-band positive regions of X chromosome, and Ma 6 maybe the main components of the heterochromatic regions of X chro-mosome. This study provides additional information about the evolution of sex chromosomes in lower vertebrates such as fish. | ZHAO Gang YU Qixing CHEN Ji WANG Boping ZANG Yating LIU Jiangdong | 2009 | Wuhan University Journal of Natural Sciences2009，14，2： | 0 |
| 11 | Kinetics of Nitrogen Removal from Molten Steel under Vacuum and Gas-Blowing Conditions显示文摘The kinetics of nitrogen removal from molten steel under vacuum and gas-blowing conditions has beenstudied during the VIM process. The experimental results indicated that vacuum affected the kinetics of nitrogenremoval in the range of 67-5 360 Pa. At 67 Pa, the rate of nitrogen removal is controlled by the liquid phase masstransfer of nitrogen in molten steel. At 2 680Pa, the limited step for nitrogen removal from molten steel is the chemical reaction at the metal/gas interface. Under the present experimental conditions, the type (Ar, CO, CO2) and quantity of gas flowed have no evident influences on the rate of nitrogen removal. The ratio of nitrogen removal of gasbubbles is less than 3 %. Based on the experimental results, the mechanism of nitrogen removal during the VDprocess with argon blowing and the other melting or secondary refining processes with carbon-oxygen reaction havebeen discussed. Some new viewpoints are proposed. | Jie Fu Heming Chang Shixiang Zhou Boping Chen (Metallurgy Engineering School, University of Science and Technology Beijing, Beijing 100083, China) | 1998 | International Journal of Minerals,Metallurgy and Materials1998，12，1： | 0 |
| 12 | Identification of a Novel Universal Potential Epitope on the Cytoplasmic Tail of H7N9 Virus Hemagglutinin显示文摘Dear Editor,H7N9 is a recently identified subtype of influenza A virus that caused a major outbreak in humans in China in 2013.According to the latest data provided by the Chinese Center for Disease Control and Prevention(http://gffzz2e50c3a1f8a741bahfvofb56u990k6x6c.ffgz.tsg.suse.edu.cn/zwgk/yqbb3/ejlist.shtml,updated on October 31,2018),the mortality rate of H7N9 infections in China amounts to 39.7%(611/1536).Thus,H7N9 poses a serious public health threat. | Xi Liu Li Ding Jing Yuan Jian Liao Lian Duan Wenfei Wang Weiguo Tan Weiye Yu Boping Zhou Xinchun Chen Zheng Yang | 2019 | Virologica Sinica2019，34，3： | 0 |
| 13 | Demulsification Behavior, Characteristics, and Performance of Surfactant Stabilized Oil-in-Water Emulsion under Bidirectional Pulsed Electric Field显示文摘As a novel electric demulsification method,bidirectional pulsed electric field(BPEF)was employed to demulsify the surfactant stabilized oil-in-water(SSO/W)emulsion for oil/water separation in this work.The demulsification behavior,characteristics,and stages under BPEF were explored.It was discovered that BPEF drove SSO/W emulsion to move and form vortexes,during which the oil droplets aggregated and accumulated to generate an oil droplet layer(ODL).ODL subsequently transformed into a continuous oil layer(COL)leading to the demulsification and separation of SSO/W emulsion.The conversion rate of ODL to COL was defined and used to evaluate the demulsification process and reflect the coalescence ability and transformation efficiency of dispersed oil droplets into COL.Furthermore,the effects of BPEF voltage,frequency,duty cycle,ratio of pulse output time,and surfactant type and content on the demulsification performance were examined.The optimal values of BPEF parameters for demulsification operation were 400 V,25 Hz,50%,and 4:1.O/W emulsion containing anionic surfactant was apt to be demulsified by BPEF,nonionic surfactant took the second place and cationic surfactant was the most difficult.A high surfactant content was not conducive to the BPEF demulsification.This work is anticipated to provide useful guidance for oil/water separation and oil recovery from actual emulsified oily wastewater by BPEF. | Ren Boping Kang Yong Zhang Xianming Gong Haifeng Chen Ling Liu Yunqi | 2023 | China Petroleum Processing & Petrochemical Technology2023，25，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员