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Creating Wheat Germplasm for High Quality Breeding by Monosomic Backcrossing

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Journal of Integrative Plant Biology 2006年第10期48卷 1210-1215页

作者： Yan-Mei Wang Jun ji Dao-wen Wang Zheng-Bin Zhang Ai-min Zhang Center for Agricultural Resources Research Institute of Genetic and Developmental Biology Academy of Sciences Shijiazhuang 050021 China National Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental Biology the Chinese Academy of Sciences Beijing 100101 China Graduate School of the Chinese Academy of Sciences Beijing 100049 China

By crossing bread wheat cultlvar GC8901 with the 1D monosonlc line of Xiaoyan No. 6 and backcrosslng the offsprlng with the Xlaoyan No. 6 1D monosonlc llne for 5 years, high-molecular-welght glutenin subunlts 1Dx5＋1Dy10 from GC8901 have been transferred Into wheat cultivar Xiaoyan No. 6. The BC5F1 offspring lines had been detected by using methods of cytology, marker, molecular marker and six elite single plants with high molecular-welght glutenin subunlts： lAx1, 1Bx14＋1 By15, 1Dx5＋1 Dy10 were Identified. Those lines have high-yleld potential with better agronomic characters and have been used In high quality wheat breeding processes as well.

关键词： germplasm for high quality breeding high-molecular-weight glutenin subunits monosomic backcrossing wheat

Artificial Generation of High Harmonics via Nonrelativistic Thomson Scattering in Metamaterial

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Research 2019年第1期2019卷 1155-1164页

作者： Yongzheng wen ji Zhou State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

High harmonic generation allows one to extend the frequency of laser to a much broader regime and to study the electron dynamics of ***,severely limited by the vague high-order process in natural material and the unfriendly state of the commonly applied gas and plasma media,the ambitious goal of custom-design high harmonics remains exceptionally ***,we demonstrate that high harmonics can be artifcially designed and tailored based on a metamaterial *** the localized reconstruction of magnetic feld in a metamaterial,the nonlinear Tomson scattering,a ubiquitous electromagnetic process which people used to believe that it only occurs with the relativistic velocity,can be stimulated in a nonrelativistic limit,which drives anharmonic oscillation of free electrons and generates high *** explicit physical model and the numerical simulations perfectly demonstrate the artifcial generation and tailoring of the high *** novel mechanism is entirely dominated by the artifcial structure instead of the natural nonlinear *** not only provides unprecedented design freedom to the high harmonic generation but breaks the rigorous prerequisite of the relativistic velocity of the nonlinear Tomson scattering process,which ofers fascinating possibilities to the development of new light source and ultrafast optics,and opens up exciting opportunities for the advanced understanding of electrodynamics in condensed matters.

关键词： relativistic harmonics harmonic

Liver injury in COVID-19:A minireview

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World Journal of Gastroenterology 2022年第47期28卷 6716-6731页

作者： wen-Shu Hu Fang-Ying jiang wen Shu Rong Zhao ji-min Cao De-Ping Wang Key Laboratory of Cellular Physiology at Shanxi Medical University Ministry of EducationShanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Department of Physiology Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina

Coronavirus disease 2019(COVID-19),caused by infection with the severe acute respiratory syndrome coronavirus-2(SARS-CoV-2),has escalated into a global tragedy afflicting human health,life,and social *** the increasing depth of research and a better understanding of this disease,it has been ascertained that,in addition to the lungs,SARS-CoV-2 can also induce injuries to other organs including the *** injury is a common clinical manifestation of COVID-19,particularly in severe cases,and is often associated with a poorer prognosis and higher severity of *** review focuses on the general existing information on liver injury caused by COVID-19,including risk factors and subpopulations of liver injury in COVID-19,the association between preexisting liver diseases and the severity of COVID-19,and the potential mechanisms by which SARS-CoV-2 affects the *** review may provide some useful information for the development of therapeutic and preventive strategies for COVID-19-associated liver injury.

关键词： Liver SARS-CoV-2 Angiotensin-converting enzyme 2 Transmembrane serine protease 2 Chronic liver disease

Insight into Vulcanization Mechanism of Novel Binary Accelerators for Natural Rubber

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Chinese Journal of Polymer Science 2014年第8期32卷 1077-1085页

作者： Shu-yan Yang 贾志欣 Lan Liu Wei-wen Fu De-min ji Yuan-fang Luo Chemical Industrial Cleaner Production and Green Chemical R&D Center of Guang Dong Universities Dongguan University of Technology College of Materials Science and Engineering South China University of Technology

A novel TU derivative, N-phenyl-N＇-（γ-triethoxysilane）-propyl thiourea （STU）, is prepared and its binary accelerator system is investigated in detail. Compared to the control references, the optimum curing time of NR compounds with STU is the shortest, indicating a more nucleophilic reaction occurs. The Py-GC/MS results present that the phenyl iso- thiocyanate fragment still remains in the NPUSTU compounds with or without extracting treatment, but no silane segment can be found in the vulcanizate with extracting treatment. Vibrations of C=S, NH and aromatic ring in FTIR experiments and a new methyne carbon peak, as well as the peaks of phenyl group of STU, in the solid state 13C-NMR experiments are found in the NR/STU vulcanizate with extracting treatment. Moreover, the crosslinking density of vulcanizates with STU evolves to lower level, indicating the sulfur atom of STU does not contribute to the sulfur crosslinking. Therefore, a new vulcanization kinetic mechanism of STU is propounded that the thiourea groups can graft to the rubber main chains as pendant groups by chemical bonds during the vulcanization process, which is in accordance with the experimental observations quite well.

关键词： Vulcanization mechanism Thiourea Natural rubber Binary accelerators.

Electrochemical Detection of Superoxide Anion Released by Living Cells by Manganese(Ⅲ) Tetraphenyl Porphine as Superoxide Dismutase Mimic

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Chemical Research in Chinese Universities 2020年第5期36卷 774-780页

作者： CUI min REN Jujie wen Xiaofang LI Na XING Yifei ZHANG Cong HAN Yuanyuan ji Xueping Department of Chemistry School of SciencesHebei University of Science and TechnologyShijiazhuang050018P.R.China Department of Medical Chemistry Hebei Medical UniversityShijiazhuang 050017P.R.China

Superoxide anion,one of the most active reactive oxygen species,is associated with the development of many *** monitoring superoxide anion in living cells is of great significance for the pathological research of many *** this work,a new non-enzymatic sensor tor the detection of superoxide anion(O^·-2)was developed,which was iabricated by the nanocomposites composed of manganese(Ⅲ)tetraphenyl porphine(MnTPP)as superoxide dismutase mimic and electrochemical reduced graphene oxide(ERGO)as electrode support material to modify the glassy carbon electrode(GCE).The electrochemical behavior of the fabricated electrode(MiiTPP/ERGO/GCE)was performed by electrochemical impedance spectroscopy(EIS)and cyclic voltammetry(CV),which revealed that MnTPP/ERGO/GCE possessed good catalytic ability to theelectrochemical reduction of O^·-*** MnTPP/ERGO/GCE showed excellent electroanalysis perfonnance towards O^·-2 using the technique of diflerential pulse voltanimetry(DPV)with a linear relationship in the range of 0.2—110.0μmol/L,a sensitivity of 445 μA· L·mmol^-1·cm^- 2 and a detection limit of 0.039 μmol/L(S/N=3).The real-time monitoring of O^·-2 from MCF-7 breast cancer cells stimulated by zymosan was realized in this work,which indicates that the MnTPP/ERGO/GCE hold potential application for electrochemical quantification of superoxide anions in biological applications.

关键词： Superoxide anion Electrochemical sensor Manganese(Ⅲ)tetraphenyl porphine:Electrochemical reduced graphene oxide MCF-7 breast cancer cell

Mechanism of improved magnetizing roasting of siderite–hematite iron ore using a synergistic CO–H2 mixture

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Journal of Iron and Steel Research International 2020年第1期27卷 12-21页

作者： Qiang Zhao ji-lai Xue wen Chen School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China Changsha Research Institute of mining and Metallurgy Co. Ltd.Changsha 410083HunanChina

A fluidized-bed magnetizing roasting-magnetic separation process was selected to treat this type of *** transformations and microstructural changes in the product resulting from magnetizing roasting under different reducing gases(CO,H2,CO+H2)were clarified by vibrating sample magnetometry,X-ray diffraction,scanning electron microscopy,and energy-dispersive X-ray *** results indicated that the conversion ratio and saturation magnetization of samples roasted in a mixed gas of CO and H2 were higher than those of samples produced under CO or H2 *** indicated that synergy of the combined CO and H2 gas had a positive effect on the fluidized-bed magnetizing roasting *** mechanism and kinetics of the improved magnetizing roasting of a siderite-hematite iron ore mixture under this synergistic CO-H2 system were investigated under isothermal *** results indicated that the apparent activation energies of the reactions of the iron oxides decreased from 37.7 and 17.9 to 15.9 kJ/moI when the roasting atmosphere was changed from pure H2 or CO to a gas mixture of CO and H2,*** mixed CO-H2 gas promoted the conversion ratio of hematite and siderite to magnetite,thereby improving the conversion ratio in the fluidized-bed magnetizing roasting process.

关键词： Siderite Hematite Mixed iron ore Fluidized-bed magnetizing roasting Kinetics Magnetite

EXTRACAPSULAR SPREAD IN IPSILATERAL NECK METASTASIS:AN IMPORTANT PROGNOSTIC FACTOR IN LARYNGEAL CANCER

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Chinese Medical Sciences Journal 2006年第2期21卷 86-89页

作者： Bin Liu Chao Guan wen-yue ji Zi-min Pan Department of Otolaryngology the First Affiliated Hospital China Medical University Shenyang 110001

Objective To evaluate the impact of extracapsular spread （ECS） in ipsilateral neck metastasis on prognosis and its related factors in laryngeal cancer. Methods The study included 184 patients who underwent laryngectomy and simultaneous radical or modified radical neck dissection between January 1994 and December 1997 for laryngeal cancer. All of them had a complete 5-year follow-up. We used transparent lymph node detection and continuous slicing method on all neck dissection specimens. Kaplan-Meier model was used for survival analysis and the log-rank test was used to assess significance. Reults We found pathological neck metastases in 80 patients. Among them, 26 cases （32. 5% ） had ECS in ipsilateral neck. ECS incidence increased with advanced pathological N （pN） stages （pNl 3.7%, pN2a 25.0%, pN2b 50. 0%, and pN2c 55.6% ; P =0. 001）. ECS incidence also increased with number of positive nodes （1 positive node 8.6%, 2 positive nodes 33.3%, 3 and more positive nodes 66. 7% ; P 〈0. 001 ）. Incidences of contralateral neck metastases and ipsilateral neck recurrence in patients with ECS were higher than those in patients without ECS （46.2% vs. 24. 1%, P=0.046; 34.6% vs. 7.4%, P =0.002）. The 5-year survival rate of patients with ECS was significantly lower than that of patients without ECS （23.1% vs. 57.4%, P =0. 013）. Conclution ECS is an important prognostic factor in laryngeal cancer. Patients with ECS have a higher incidence of contralateral neck metastasis, so bilateral neck dissection should be selected.

关键词： laryngeal neoplasms lymphatic metastasis extracapsular spread prognosis

Reconstruction of Smoke Plume Concentration Peaks Based on Modified MAX-DOAS Tomography

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Chinese Journal of Chemical Physics 2015年第6期28卷 -页

作者： min-hong Wei min-ming Tong Su-wen Li School of Physics and Electronic Information Huaibei Normal University Huaibei 235000 ChinaSchool of Information and Electrical Engineering China University of Mining and Technology Xuzhou 221116 China School of Information and Electrical Engineering China University of Mining and Technology Xuzhou 221116 China School of Physics and Electronic Information Huaibei Normal University Huaibei 235000 China

Optical tomography system based on modified simultaneous iterative reconstruction technique is designed to real-time monitor spatial distribution and diffusion process of smoke plume in a power plant. Concentration profiles, rather than just a point value, of smoke plume concentrations are the goal of this method, and the tomography algorithm is analyzed. According to incomplete projection data in the process of reconstruction and exiting noise interference, the modified simultaneous iterative reconstruction technique (SIRT) is adopted to extract the information of the trace gas concentration by a fan beam scanning and is compared to the conventional SIRT. Three evaluation indexes show that the reconstruction effect is the best by choosing proper relaxation factor, which reduces the index d to 0.044 from 0.435 and reduces the index r to 0.044 from 0.376 for 5500 iterations. Hence, the modified algorithm performs better in estimating the shape of the plume, this method is used to process the measured spectra in field campaign, the reconstruction results and the measured data are basically consistent, which is further confirmed by the experimental results.

关键词： Reconstruction DOAS tomography Retrieval Modified simultaneous iterative reconstruction technique

Nickel-carbonate nanowire array： An efficient and durable electrocatalyst for water oxidation under nearly neutral conditions

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Frontiers of Chemical Science and Engineering 2018年第3期12卷 467-472页

作者： Yuyao ji min Ma Xuqiang ji Xiaoli Xiong Xuping Sun College of Chemistry and Materials Science Sichuan Normal University Chengdu 610068 China College of Chemistry Sichuan University Chengdu 610064 China Key Lab of Process Analysis and Cont ol of Sichuan Universities Yibin University Yibin 644000 China

It is highly attractive but still remains a great challenge to develop an efficient electrocatalyst for oxygen evolution reaction under nearly neutral conditions. In this work, we report the transformation of Ni3S2 nanowire array on nickel foam into the amorphous nickel carbonate nanowire array on nickel foam （NiCO3/NF）. The resulting NiCO3/NF shows high electrocatalytic activity towards water oxidation and affords current density of 50 mA. cm-2 at overpotential of 395 mV in 1.0 mol·L^-1 KHCO3. Moreover, this NiCO3/NF is also durable with a long-term electrochemical durability of 60 h. This catalyst electrode achieves a high turnover frequency of 0.21 mol O2·s^-1 at the overpotential of 500 mV.

关键词： water oxidation NiCO3/NF nearly neutral conditions superior activity electocatalyst