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Nuclear Science and Techniques 2016年第6期27卷 101-105页

作者： Ya Xu Mi Xu guang-fu wang Chen-Long Zheng Meng-Lin Qiu Ying-Jie Chu College of Nuclear Science and Technology Beijing Normal UniversityBeijing 100875China China Nuclear Power Engineering Co.Ltd. Beijing 100840China Beijing Radiation Center Beijing 100875China

In this study,we present a new method for the indirect integration of beam charges in external beam proton-induced X-ray emission and proton-induced c-ray emission(PIXE–PIGE) *** recorded proton spectra backscattered by a Kapton film extraction window in different sample situations and under different beam *** also simulated backscattering spectra using the simulation of backscattering spectra program(SIMNRA).We determined that in a specific geometrical arrangement,different sample situations did not significantly affect factor C_Q(the ratio between integral backscattering proton counts and integral beam charges).We also studied the reproducibility and beam current dependence of factor C_*** statistic factor of C_Q was28.95 ± 0.6 kilo counts/l C,with a relative standard deviation of 2.0 %.Significantly,in external beam PIXE–PIGE analysis,we were able to calculate beam charge integration from the integral backscattering proton counts in an energy region.

关键词：质子诱导样品提取背散射积分电荷窗口外照射质子激发X射线

Financial Derivatives Market and Storage Management

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厦门大学学报（自然科学版） 2002年第S1期41卷 284-285页

作者： CHEN guang-fu, wang Zhou-jing (Department of Automation, Xiamen University, Xiamen 361005, China)

It’s known to all that under ideal condition the s to rage cost is kept in lower level when storage management be arranged by Economic Order Quantity(EOQ).Does this mean that any companies should set up their own storing system in proportion to the scale of the commodities’ producing or sell ing furthermore, even if they manage storage in EOQ, because of different oper ation scale, geographical condition or ability borrowing money from financial ma rket, different companies pay unequal cost in storing the same *** thi s paper, except for supplying commodities from our own storage system, the autho rs have analyzed other two supplying ways without whole storage system, they are forward contracts and futures *** authors have discussed variable su pply cost for above different supply *** to the cost of each sup ply way, the managers can choose the most economical way in supplying the commod ity and predict the price of futures from storage management arranged by *** e summary content is as follow: 1. The comparing of supply cost between forward contracts and storing system a rranged by EOQ. (1) The supply cost from forward contracts (2) The supply cost from storage system arranged by Economic Order Quantity (3) The application example for comparing cost in different supply way *** comparing of supply cost between futures going physical and storing syst em arranged by Economic Order Quantity. (1) The supply cost from futures going physical (2) The correlation between futures contracts and storage management arranged b y EOQ (3) The application example for comparing cost in different supply way *** does storing system of scale economic affect the price of forward and fu tures contracts (1) How does the price of forward and futures contracts fluctuate (2) How do we calculate the price of a commodity at future point from the cost of scale economic storing (3) How do we operate efficiently in derivatives market by using the cost of s

关键词： Economic Order Quantity forward contracts futur es contracts storage management financial derivatives market

Effects of energy deposition on mechanical properties of sodium borosilicate glass irradiated by three heavy ions: P, Kr, and Xe

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Nuclear Science and Techniques 2019年第7期30卷 91-99页

作者： Xin Du Tian-Tian wang Bing-Huang Duan Xiao-Yang Zhang Feng-Fei Liu Chang-Lin Lan guang-fu wang Liang Chen Hai-Bo Peng Tie-Shan wang School of Nuclear Science and Technology Lanzhou University Lanzhou 730000 China Key Laboratory of Beam Technology and Material Modification of Ministry of Education Beijing Normal University Beijing 100875 China

Sodium borosilicate glasses are candidate materials for high-level radioactive waste vitrification;therefore, understanding the irradiation effects in model borosilicate glass is crucial. Effects of electronic energy deposition and nuclear energy deposition induced by the impact of heavy ions on the hardness and Young’s modulus of sodium borosilicate glass were investigated. The work concentrates on sodium borosilicate glasses, henceforth termed NBS1 (60.0% SiO2, 15.0% B2O3, and 25.0% Na2O in mol%). The NBS1 glasses were irradiated by P, Kr, and Xe ions with 0.3 MeV, 4 MeV, and 5 MeV, respectively. The hardness and Young’s modulus of ion-irradiated NBS1 glasses were measured by nanoindentation tests. The relationships between the evolution of the hardness, the change in the Young’s modulus of the NBS1 glasses, and the energy deposition were investigated. With the increase in the nuclear energy deposition, both the hardness and Young’s modulus of NBS1 glasses dropped exponentially and then saturated. Regardless of the ion species, the nuclear energy depositions required for the saturation of hardness and Young’s modulus were apparent at approximately 1.2 × 10^20 keV/cm^3 and 1.8 × 10^20 keV/cm^3, respectively. The dose dependency of the hardness and Young’s modulus of NBS1 glasses was consistent with previous studies by Peuget et al. Moreover, the electronic energy loss is less than 4 keV/nm, and the electronic energy deposition is less than 3.0 × 10^22 keV/cm^3 in this work. Therefore, the evolution of hardness and Young’s modulus could have been primarily induced by nuclear energy deposition.

关键词： Borosilicate glass Hardness Young's modulus Irradiation Nuclear energy deposition

Identification of Immunodominant Th1-type T cell Epitopes from Schistosoma japonicum 28 kDa Glutathione-S-transferase,a Vaccine Candidate

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Acta Biochimica et Biophysica Sinica 2005年第11期37卷 751-758页

作者： guang-fu LI Yong wang Zhao-Song ZHANG Xin-Jun wang Min-Jun JI Xiang ZHU Feng LIU Xiao-Ping CAI Hai-Wei WU Guan-Ling WU Department of Pathogenic Biology,Nanjing Medical University,Nanjing 210029,China Department of Pathogenic Biology Nanjing Medical UniversityNanjing 210029 China

Th1-type cytokines produced by the stimulation of Th1-type epitopes derived from definedschistosome-associated antigens are correlated with the development of resistance to the parasite *** mansoni 28 kDa glutathione-S-transferase(Sm28GST),a major detoxification enzyme,hasbeen recognized as a vaccine candidate and a phase Ⅱ clinical trial has been carried *** immunizedwith recombinant Schistosoma japonicum 28GST(Sj28GST)have shown immune protection against theparasite *** the present study,six candidate peptides(P1,P2,P3,P4,P7 and P8)from Sj28GSTwere predicted,using software,to be T cell epitopes,and peptides P5 and P6 were designed by extendingfive amino acids at the N-terminal and C-terminal of P1,*** peptide 190-211 aa in Sj28GSTcorresponding to the Th1-type epitope(190-211 aa)identified from Sm28GST was selected and named *** nine candidate peptides were synthesized or produced as the fusion protein with thioredoxin in thepET32c(+)/BL21(DE3)*** capacity to induce a Th1-type response in vitro was measured usinglymphocyte proliferation,cytokine detection experiments and flow *** results showed that P6(73-86 aa)generated the strongest stimulation effect on T cells among the nine candidate peptides,and drovethe highest level of IFN-γ and ***,P6 is a functional Th1-type T cell epitope that is differentfrom that in Sm28GST,and will be useful for the development of effective vaccines which can triggeracquired immunity against ***,our strategy of identifying the Th1-type epitope by acombination of software prediction and experimental confirmation provides a convenient and cost-savingalternative approach to previous methods.

关键词： Schistosoma japonicum epitope Sj28GST Th1 epitope IFN-γ

Calibration of CR-39 solid-state track detectors for study of laser-driven nuclear reactions

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Nuclear Science and Techniques 2020年第4期31卷 118-122页

作者： Yang-Fan He Xiao-Feng Xi Shi-Lun Guo Bing Guo Chuang-Ye He fu-Long Liu Di Wu Ji-Hong Wei Wan-Sha Yang Luo-Huan wang Dong-Hai Zhang Meng-Lin Qiu guang-fu wang Chao-Yang Li Xiao-Fei Lan School of Physics and Space Sciences China West Normal UniversityNanchong 637002China China Institute of Atomic Energy Beijing 102413China College of Nuclear Science and Technology Beijing Normal UniversityBeijing 100875China School of Physics and Information Engineering Shanxi Normal UniversityLinfen 041004China

It is of particular interest to investigate nuclear fusion reactions generated by high-intensity lasers in plasma environments that are similar to real astrophysical *** have experimentally investigated2H(d,p)3H,one of the most crucial reactions in big bang nucleosynthesis models,at the Shenguang-Ⅱlaser *** this work,we present a new calibration of CR-39 solidstate track detectors,which are widely employed as the main diagnostics in this type of fusion reaction *** measure the dependence of the track diameter on the proton *** is found that the track diameters of protons with different energies are likely to be *** propose that in this case,the energy of the reaction products can be obtained by considering both the diameters and gray levels of these *** present results would be very helpful for analyzing the2 H(d,p)3H reaction products recorded with the same batch of CR-39 solid-state track detectors.

关键词： Big bang nucleosynthesis Laser-driven nuclear reactions CR-39 detectors Gray levels

In situ luminescence measurement of 6H-SiC at low temperature

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Chinese Physics B 2020年第4期29卷 77-81页

作者： Meng-Lin Qiu Peng Yin guang-fu wang Ji-Gao Song Chang-Wei Luo Ting-Shun wang Guo-Qiang Zhao Sha-Sha Lv Feng-Shou Zhang Bin Liao Key Laboratory of Beam Technology of Ministry of Education College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China Beijing Radiation Center Beijing 100875China

To understand the evolution of defects in SiC during irradiation and the influence of temperature,in situ luminescence measurements of 6H-SiC crystal samples were carried out by ion beam induced luminescence(IBIL)measurement under2 MeV H^+ at 100 K,150 K,200 K,250 K,and 300 K.A wide band(400-1000 nm)was found in the spectra at all temperatures,and the intensity of the IBIL spectra was highest at 150 K among the five temperatures.A small peak from 400 nm to 500 nm was only observed at 100 K,related with the D1 defect as a donor-acceptor pair(D-A)*** further understanding the luminescent centers and their evolution,the orange band(1.79 eV)and the green band(2.14 eV)in the energy spectrum were analyzed by Gaussian decomposition,maybe due to the donor-deep defect/conduction band-deep defect transitions and Ti related bound excition,***,a single exponential fit showed that when the temperature exceeded 150 K,the two luminescence centers’resistance to radiation was reduced.

关键词： ion beam induced luminescence 6H-SiC temperature

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多信号叠加在随机共振系统中的研究

系统仿真学报 2009年第13期21卷 4190-4193页

作者：张光璐王辅忠天津工业大学理学院天津300160

在随机共振理论的基础上建立了双稳态随机共振系统的仿真模型,调节参数将系统在单路信号上产生的随机共振效应扩展到多路叠加信号上,并讨论了参数调节对系统的影响和系统中多路信号叠加的局限性。在此基础上定义了随机共振系统的通道及... 详细信息

在随机共振理论的基础上建立了双稳态随机共振系统的仿真模型,调节参数将系统在单路信号上产生的随机共振效应扩展到多路叠加信号上,并讨论了参数调节对系统的影响和系统中多路信号叠加的局限性。在此基础上定义了随机共振系统的通道及其容量。最后仿真了系统在较高频率的应用,并举出了实例。扩展了随机共振系统处理信号的容量、速度及效率,在信号处理的应用中具有新的意义。

关键词：随机共振仿真多路信号参数调节

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塔中地区石炭系主要断层的侧向封闭性

新疆石油地质 1998年第5期19卷 362-365页

作者：付广王朋岩付晓飞大庆石油学院

在研究塔中地区断裂发育特征的基础上，根据泥岩涂抹系数定义，对研究区几条主要断层在石炭系中的泥岩涂抹系数进行了计算，结果表明，除Ｆ２断层泥岩涂抹系数大于４，所形成的泥岩涂抹层空间分布连续性相对较差，侧向封闭性不好，不利... 详细信息

在研究塔中地区断裂发育特征的基础上，根据泥岩涂抹系数定义，对研究区几条主要断层在石炭系中的泥岩涂抹系数进行了计算，结果表明，除Ｆ２断层泥岩涂抹系数大于４，所形成的泥岩涂抹层空间分布连续性相对较差，侧向封闭性不好，不利于油气聚集成藏外，其余几条断层（Ｆ３、Ｆ４、Ｆ５）泥岩涂抹系数均小于４，所形成的泥岩涂抹层空间分布的连续性相对较好，侧向封闭性好，为塔中地区石炭系油气聚集成藏起到了重要作用。

关键词：塔里木盆地石炭纪断层泥岩封闭压力油气藏

油气成藏期断层古侧向封闭性预测方法及其应用

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地球科学（中国地质大学学报） 2017年第10期42卷 1787-1801页

作者：王超吕延防付广王有功刘哲孙同文胡欣蕾东北石油大学地球科学学院黑龙江大庆163318

油气成藏期断层古侧向封闭能力的强弱对于油气的聚集和分布有着重要的影响,目前尚无有效的评价方法用于定量分析断层古侧向封闭性,并且在利用断层侧向封闭油气SGR(Shale Gouge Ratio)下限方法预测油柱高度过程中,发现断层侧向封闭油气... 详细信息

油气成藏期断层古侧向封闭能力的强弱对于油气的聚集和分布有着重要的影响,目前尚无有效的评价方法用于定量分析断层古侧向封闭性,并且在利用断层侧向封闭油气SGR(Shale Gouge Ratio)下限方法预测油柱高度过程中,发现断层侧向封闭油气能力与油气分布呈现部分不吻合现象,即井在预测范围之内,但是该井却不含油气.经过深入研究表明:这种现象可能是由于在油气成藏期断层古侧向封闭能力弱(达不到侧向封闭油气下限)造成的.因此,在断层侧向封闭油气SGR下限方法的基础上,通过恢复油气成藏期的古地层厚度、断层古断距、古泥质含量曲线,建立一套断层古侧向封闭性的评价方法,并以冀中坳陷文安斜坡文13断圈为例,利用断层古侧向封闭性评价法对断圈的古侧向封闭能力进行定量评价.结果表明:文13断圈在油气成藏期侧向封闭油气高度为0m,与井试油结论相吻合,表明该方法用于定量评价断层古侧向封闭性是可行的,对于准确评价断圈封闭油气能力、降低断圈油气钻探风险以及丰富和完善断层侧向封闭理论均具有实践和理论意义.

关键词：断层古侧向封闭性评价方法油气古地层厚度古断距古泥质含量定量分析石油地质

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地层剥蚀对天然气扩散散失影响的定量研究

新疆石油地质 2002年第1期23卷 32-34页

作者：付广王朋岩杨勉大庆石油学院勘探系黑龙江安达151400

在深入研究天然气在地下岩石中扩散机理及其模型的基础上,分析了地层剥蚀对天然气扩散散失的影响,建立了地层剥蚀对天然气扩散散失影响的地质模型及数学模型。模拟计算结果表明,地层剥蚀使天然气扩散散失量减小。随地层剥蚀量增加,天然... 详细信息

在深入研究天然气在地下岩石中扩散机理及其模型的基础上,分析了地层剥蚀对天然气扩散散失的影响,建立了地层剥蚀对天然气扩散散失影响的地质模型及数学模型。模拟计算结果表明,地层剥蚀使天然气扩散散失量减小。随地层剥蚀量增加,天然气扩散散失量开始明显减小,达到一定程度后减小速度变缓,这一结果符合影响天然气扩散散失各因素随埋藏深度的变化情况。

关键词：天然气气体扩散定量研究侵蚀作用地层剥蚀数学模型地质模型