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Dynamics of Soil Organic Carbon Under Uncertain Climate Change and Elevated Atmospheric CO_2

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Pedosphere 2012年第4期22卷 489-496页

作者： LIN zhong-bing ZHANG Ren-Duo Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology School of Environmental Science and EngineeringSun Yat-sen UniversityGuangzhou 510275(China)

Climate change and elevated atmospheric CO2 should affect the dynamics of soil organic carbon （SOC）. SOC dynamics under uncertain patterns of climate warming and elevated atmospheric CO2 as well as with different soil erosion extents at Nelson Farm during 1998-100 were simulated using stochastic modelling. Results based on numerous simulations showed that SOC decreased with elevated atmospheric temperature but increased with atmospheric CO2 concentration. Therefore, there was a counteract effect on SOC dynamics between climate warming and elevated CO2. For different soil erosion extents, warming 1℃ and elevated atmospheric CO2 resulted in SOC increase at least 15%, while warming 5 ℃ and elevated CO2 resulted in SOC decrease more than 29%. SOC predictions with uncertainty assessment were conducted for different scenarios of soil erosion, climate change, and elevated CO2. Statistically, SOC decreased linearly with the probability. SOC also decreased with time and the degree of soil erosion. For example, in 2100 with a probability of 50%, SOC was 1 617, 1 167, and 892 g m^-2, respectively, for no, minimum, and maximum soil erosion. Under climate warming 5 ℃ and elevated CO2, the soil carbon pools became a carbon source to the atmosphere （P 〉 95%）. The results suggested that stochastic modelling could be a useful tool to predict future SOC dynamics under uncertain climate change and elevated CO2.

关键词： atmospheric carbon dioxide climate warming soil carbon pools soil erosion stochastic modelling

Error analysis on heading determination via genetic algorithms

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Journal of Systems Engineering and Electronics 2006年第3期17卷 673-676页

作者： zhong bing Xu Jiangning Ma Heng Dept. of Electric Naval Univ. of Engineering Wuhan 430033 P. R. China

A new error analysis method is presented via genetic algorithms for high precise heading determination model based on two total positioning stations （TPSs）. The method has the ability to search all possible solution space by the genetic operators of elitist model and restriction. The result of analyzing the error of this model shows that the accuracy of this model is precise enough to meet the need of calibration for navigation systems on ship, and the search space is only 0. 03% of the total search space, and the precision of heading determination is 4＂ in a general dock.

关键词： heading determination SGA genetic algorithms.

Mechanism Underlying Antitumor Effects of Sinomenine

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Chinese Journal of Integrative Medicine 2019年第11期25卷 873-878页

作者： GAO Le-nyu zhong bing WANG Yong Department of Traditional Chinese Medicine Southwest Hospital the Third Military Medical University (Army Military Medical University)

Sinomenine(SIN) is a bioactive alkaloid compound extracted from a Chinese medicinal plant Sinomenium acutum. It is a multitarget antitumor natural substance. Various mechanisms have been proposed for the antitumor effects of SIN, such as direct cytotoxicity, induction of apoptosis, sensitization attenuating radiotherapy and chemotherapy, reversal of drug resistance, resistance to distant metastasis, and antiangiogenesis. SIN can be used as a tumor cell killer and an adjuvant to radiotherapy and chemotherapy. However, recent studies are mostly limited to the basic experimental stage; no systematic clinical studies have yet been reported. Therefore, this paper aimed to review the mechanism underlying the antitumor effects of SIN by consulting relevant domestic and foreign studies and to provide a relevant reference for further development, use, and exploration of SIN.

关键词： antitumor mechanism pharmacology sinomenine Chinese medicine

Seeing time-reversal transmission characteristics through kinetic anti-ferromagnetic Ising chain

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Chinese Physics B 2012年第2期21卷 419-424页

作者： Chen Ying-Ming Wang bing-zhong Institute of Applied Physics University of Electronic Science and Technology of ChinaChengdu 610054China School of Physics and Electronic Information Huaibei Normal UniversityHuaibei 235000China

As an example of our new approach to complex near-field （NF） scattering of electromagnetic waves, the timereversal （TR） transmission process on an NF current-element array is mapped to the statistical process on a kinetic Ising transmission chain. Equilibrium statistical mechanics and non-equilibrium Monte Carlo （MC） dynamics help us to find signal jamming, aging, annihilating, creating, and TR symmetry breaking on the chain with inevitable background noises; and these results are general in NF systems where complex electromagnetic scattering arises.

关键词： time-reversal near-field scattering symmetry breaking temporal focusing

Effect of Co-solvent on the Palladium Catalyzed Alkoxycarbonylation of Allyl Bromide in Supercritical CO_2

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Chinese Chemical Letters 2002年第10期13卷 933-934页

作者： Rui Qi SONG Jian Qing ZENG bing zhong Guangzhou Institute of Chemistry Chinese Academy of SciencesGuangzhou 510650 State Key Laboratory of Coal Chemistry Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001 School of Chemistry and ChemicalEngineering zhongshan University Guangzhou 510275

The effect of cosolvent on the palladium catalyst which catalyze alkoxycarbonylation of allyl bromide in supercritical CO2 has been investigated. It was found that a small amount of cosolvent such as ethanol, CH2Cl2 and cyclohexane can affect both reaction yields and selectivities largely. Ethanol was the most favorable cosolvent for increasing the total yield of unsaturated esters and the selectivity of 3-butenoic acid ester. Using cosolvent ethanol and cocatalyst FeCl2 Simultaneously can lead to better reaction results.

关键词： Supercritical CO2 cosolvent alkoxycarbonylation palladium cocatalyst FeCl2.

Template Syntheses and Crystal Structures of Hexaaza Macrocyclic Complexes with C-Methyl Substituents

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Chinese Journal of Structural Chemistry 2005年第11期24卷 1259-1263页

作者： ZHANG bing KOU Hui-zhong CUI Ai-Li WANG Ru-Ji Department of Chemistry Tsinghua University Beijing 100084 China

Two new macrocyclic complexes with C-methyl substituents on the framework, namely, [CuL]（ClO4）2 （L = 5,12-dimethyl-1,8-dihydroxyethyl-1,3,6,8,10,13-hexaazacyclotetradecane） 1 and [NiL]（ClO4）2 2, have been synthesized and structurally characterized through X-ray diffraction analysis. Also, crystal structure of [CuL^1]（ClO4）2 （L^1 = 1,8-dimethyl- 1,3,6,8, [ 0,13- hexaazacyclotetradecane） 3 has been determined. Crystal data for 1： C14H32C12CuN6O10, Mr = 578.90, monoclinic, P2 1/n, α = 8.3529（11）, b = 10.8105（17）, c = 13.3709（17） ,A, β = 105.189（10）°, V= 1165.2（3） A3, Z = 2, Dc = 1.650 g/cm^3, F（000） = 602, λ（MoKct） = 0.71073 A,μ = 1.229 mm ^-1, R = 0.0474 and wR = 0.0895 for 2771 observed reflections （I 〉 2σ（Ⅰ））. Crystal data for 2： C14H32C12N6NiO10, Mr = 574.07, monoclinic, P2 1/c, a = 8.3636（12）, b = 12.997（2）, c = 10.764（2） A, β = 99.31（2）°, V = 1154.7（3） A^3, Z = 2, DC = 1.651 g/cm^3, F（000） = 600, λ（MoKa） = 0.71073 A,μ = 1. 134 mm^-1, R = 0.0380 and wR = 0.0796 for 2670 observed reflections （i 〉 2σ（Ⅰ））. Crystal data for 3： C 10H26Cl2CuN6O8, Mr = 492.81, monoclinic, P2 1/n, a = 8.4860（17）, b = 8.6320（17）, c = 12.662（3） ,A,β = 103.40（3）°, V = 902.2（3）A^3, Z = 2, Dc = 1.814 g/cm^3, F（000） = 510, λ（MoKa） = 0.71073A, μ = 1.562 mm^-1, R = 0.0505 and wR = 0.1061 for 1967 observed reflections （I〉 2σ（Ⅰ））. Complexes 1 and 2 are isostructural with the metal ions situated at the inversion center/Hydrogen bonds between O atoms of pendant and perchlorate anion give rise to a two-dimensional supramolecular layer. The Cu（Ⅱ） ions of compounds 1 and 3 adopt distorted axially-elongated octahedral coordinate geometry, and the nickel（Ⅱ） ion in complex 2 is four-coordinated with a square-planar configuration.

关键词： synthesis crystal structure macrocycle C-methyl substituent copper nickel synthesis crystal structure macrocycle C-methyl substituent copper nickel

Identification and Phylogenetic Analysis of an Orf Virus Isolated from an Outbreak in Boer Goat in Shanxi Province

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Agricultural Sciences in China 2011年第6期10卷 946-953页

作者： GU Shao-peng SHI Xin-tao SHI zhong-yong WANG zhong-bing ZHENG Ming-xue College of Animal Science and Veterinary Medicine Shanxi Agricultural University Taigu 030801 P.R.China Genetically Modified Testing Center Ministry of Agriculture/College of Life Science Shanxi Agricultural Universit Taigu 030801 P.R. China Center for Animal Disease Control and Prevention of Shanxi Province Taiyuan 030024 P.R.China

To identify and analyze the Orf virus in Shanxi Province, China, an Orf virus strain was successfully isolated from crust materials of boer goat with clinical sore mouth symptom from a goat farm of Shanxi Province by passaging in lamb testis （LT）. The Orf virus was identified by enzyme linked immunosorbent assay （ELISA） test, recurrent infection test, transmission electron microscopy, and PCR. The nucleotide and amino acid sequences of two genes of the Orf virus were analyzed. The results showed that under the electron microscopy the virus had a presence of typical parapoxvirus virions and there were many eosinophilic intracytoplasmic inclusions observed by hematoxylin-eosin （H＆E） stain. In ELISA test, optical density （OD） readings of the sample showed a positive result, and the rabbits infected with the virus showed a typically Orf virus-infected appearance. All these findings proved that the sample was an Orf virus. The phylogenetic studies of Orf B2L and Orf F1L genes showed that the virus clustered in different branches and were closer to the Orf virus Nantou （DQ904351） and the OV-SA00 isolates （AY386264）. Furthermore, the above results may provide some insight into the genotype of the etiological agent responsible for the Orf outbreak in Shanxi Province, and could also provide a comparative view of the B2L and F1L genes of parapoxvirus.

关键词： Orf virus boer goat identification phylogenetic analysis B2L F1L

Nonequilibrium reservoir engineering of a biased coherent conductor for hybrid energy transport in nanojunctions

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Chinese Physics B 2020年第12期29卷 44-49页

作者： bing-zhong Hu Lei-Lei Nian Jing-Tao Lü School of Physics and Wuhan National High Magnetic Field Center Huazhong University of Science and TechnologyWuhan 430074China

We show that a current-carrying coherent electron conductor can be treated as an effective bosonic energy reservoir involving different types of electron–hole pair *** weak electron–boson coupling,hybrid energy transport between nonequilibrium electrons and bosons can be described by a Landauer-like *** allows for unified account of a variety of heat transport problems in hybrid electron–boson *** applications,we study the non-reciprocal heat transport between electrons and bosons,thermoelectric current from a cold-spot,and electronic cooling of the *** unified framework provides an intuitive way of understanding hybrid energy transport between electrons and bosons in their weak coupling *** opens the way of nonequilibrium reservoir engineering for efficient energy control between different quasi-particles at the nanoscale.

关键词： electron–hole pair hybrid energy transport nanojunction electron–phonon interaction

Advances in Modern EAF Steelmaking Technology of China

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Journal of Iron and Steel Research International 2004年第4期11卷 1-9页

作者： FU Jie WANG zhong-bing WANG Xing-jiang MAO Xin-ping UniversityofScienceandTechnologyBeijing Beijing100083China GuangzhouZhujiangSteelCoLtd Guangzhou510730China AnyangIronandSteelCoLtd Anyang455004China

Municipal waste disposal system by high temperature smelting has the following characteristics: ① The smelting temperature is as high as 1 700-1 800 ℃; ② The dioxin is hardly produced; ③ The secondary pollution can be avoided because of the absence of heavy metals in the flux; ④ The metals and flux after disposal can be reused for construction materials. If outdated, the idle or discarded medium and small blast furnaces can be reconstructed into a waste resource system with high temperature smelting technique, and it is possible to make full use of their existing functions to reduce the investment and exploit their social function of environmental protection. In addition, a new waste disposal system with high temperature smelting was designed based on the recycling municipal waste technology abroad.

关键词： waste smelting high temperature dioxin heavy metal

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