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Development of multi-group Monte-Carlo transport and depletion coupling calculation method and verification with metal-fueled fast reactor

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Nuclear Science and Techniques 2023年第11期34卷 20-39页

作者： Hui Guo yi‑wei wu Qu‑Fei Song Yu‑Yang Shen Han‑Yang Gu School of Nuclear Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China

The accurate modeling of depletion,intricately tied to the solution of the neutron transport equation,is crucial for the design,analysis,and licensing of nuclear reactors and their fuel *** paper introduces a novel multi-group Monte-Carlo depletion calculation ***-group cross-sections(MGXS)are derived from both 3D whole-core model and 2D fuel subassembly model using the continuous-energy Monte-Carlo *** calculations employ the multi-group Monte-Carlo method,accommodating both homogeneous and specific local heterogeneous *** proposed method has been validated against the MET-1000 metal-fueled fast reactors,using both the OECD/NEA benchmark and a new refueling benchmark introduced in this *** findings suggest that microscopic MGXS,produced via the Monte-Carlo method,are viable for fast reactor depletion ***,the locally heterogeneous model with angular-dependent MGXS offers robust predictions for core reactivity,control rod value,sodium void value,Doppler constants,power distribution,and concentration levels.

关键词： Monte-Carlo Multi-group cross-section generation Depletion Fast reactors Metallic fuel

A Decision Framework for Automatic Guided Vehicle Routing Problem with Traffic Congestions

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Journal of the Operations Research Society of China 2020年第3期8卷 357-373页

作者： Lu Zhen yi-wei wu Si Zhang Qiu-Ji Sun Qi Yue School of Management Shanghai UniversityShanghai 200444China

Automatic guided vehicles are widely used in various types of warehouses including the automated container *** paper provides a decision framework for port managers to design and schedule automatic guided vehicle routing plans under time-varying traffic conditions.A large number of computational experiments on a grid graph are conducted to validate the efficiency of the proposed decision *** also proposed one efficient queueing rule in automatic guided vehicle routing *** the complexity of the problem is high,computational results show that our proposed decision framework can provide high quality solutions within a relatively short computation time.

关键词： Automatic guidedvehicle Multiple vehiclerouting Traffic congestions Decision framework

Plant Sensing and Signaling in Response to K＋-Deficiency

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Molecular Plant 2010年第2期3卷 280-287页

作者： yi Wang wei-Hua wu State Key Laboratory of Plant Physiology and Biochemistry (SKLPPB) National Plant Gene Research Centre (Beijing) College of Biological Sciences ChinaAgricultural University Beijing 100193 China

Potassium （K＋） is one of the essential macronutrients for plant growth and development. However, K＋ content in soils is usually limited so that the crop yields are restricted. Plants may adapt to K＋-deficient environment by adjusting their physiological and morphological status, indicating that plants may have evolved their sensing and signaling mechanisms in response to K＋-deficiency. This short review particularly discusses some components as possible sensors or signal transducers involved in plant sensing and signaling in response to K＋-deficiency, such as K＋ channels and transporters, H＋-ATPase, some cytoplasmic enzymes, etc. Possible involvement of Ca2＋ and ROS signals in plant responses to K＋-deficiency is also discussed.

关键词： K+-deficiency K+ channel K+ transporter Ca2+ signaling.

Bond-distorted Orbitals and Their Application to Benzene

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Chemical Research in Chinese Universities 1993年第4期9卷 335-338页

作者： MO yi-rong , wu wei and ZHANG Qian-er (Department of Chemistry, Xiamen University, Xiamen, 361005)

The present paper covers a kind of localized orbitals, namely bond-distorted or-bitals in the valence bond calculation. Test calculation on benzene is reported. The results indicate that Dewar structures are important... 详细信息

关键词： Ab initio Valence bond Bond-distorted orbital (EDO) Benzene

Assessment of tumor response to chemotherapy in patients with breast cancer using ^(18)F-FLT: a meta-analysis

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Chinese Journal of Cancer Research 2014年第5期26卷 517-524页

作者： Sheng-Ming Deng wei Zhang Bin Zhang yi-wei wu Department of Nuclear Medicine The First Affiliated Hospital of Soochow University School of Radiation Medicine and Protection Medical College of Soochow University Key Laboratory of Nuclear Medicine Ministry of HealthJiangsu Key Laboratory of Molecular Nuclear MedicineJiangsu Institute of Nuclear Medicine

Purpose： To determine the diagnostic performance of 3＇-deoxy-3＇-18F-fluorothymidine positron emission tomography/computed tomography（FLT PET/CT） and FLT PET for evaluating response to chemotherapy in patients with breast cancer.Methods： Databases such as Pub Med（MEDLINE included） and excerpta medica database（EMBASE）, were searched for relevant original articles. The included studies were assessed for methodological quality with quality assessment of diagnosis accuracy studies（QUADAS） score tool. Histopathological analysis and/or clinical and/or radiological follow-up for at least 6 months were used as the reference standard. The data were extracted by two reviewers independently to analyze the sensitivity, specificity, summary receiver operating characteristic（SROC） curve, area under the curve（AUC）, and heterogeneity.Results： The present study analyzed a total of 4 selected articles. The pool sensitivity was 0.773 [95% confidence interval（CI）： 0.594-0.900]. The pooled specificity was 0.685（95% CI： 0.479-0.849） on basis of FEM. The pooled LR^＋, LR^-, and DOR were 2.874（1.492-5.538）, 0.293（0.146-0.589）, and 14.891（3.238-68.475）, respectively. The AUC was 0.8636（±0.0655）, and the Q＊ index was 0.7942（±0.0636）.Conclusions： Our results indicate that 18^F-FLT PET/CT or PET is useful to predict chemotherapy response in breast cancer with reasonable sensitivity, specificity and DOR. However, future larger scale clinical trials will be needed to assess the regimen of 18^F-FLT PET/CT or PET in monitoring the response to chemotherapy in breast cancer patients.

关键词： Breast cancer 18 ^F-FLT PET chemotherapy meta-analysis

Ⅱ conjugation in the butadiene

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Chinese Journal of Chemistry 1995年第1期13卷 27-32页

作者： MO, yi-Rong wu, wei ZHANG, Qian-ErDepartment of Chemistry, Xiamen University, Xiamen, Fujian 361005, China

The π electronic delocalization in trans-C4H6 and cis-C4H6 has been investigated in the frame of ab initio valence bond theory with 6-31G basis set. The result shows that the Csp2-Csp2 single bond length (1.506 A) is only about 0.024 A shorter than the Csp3-Csp3 bond, thus the central bond length shortening would be mainly due to π conjugation. The theoretical resonance energies of the trans-C4H6 and cis-C4H6 are 8.48 and 7.44 kcal/mol, respectively.

关键词： Butadiene valence bond delocalization.

Advances in nonpharmacologic interventions for operative puncture pain in children

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Nursing Communications 2024年第3期8卷 1-5页

作者： Fei-Fei yin Xue Wang wei-yi wu Department of Emergency Medicine Jiangdu People's Hospital affiliated with Yangzhou UniversityYangzhou 225200China

Venipuncture is an indispensable nursing procedure for intravenous infusion,but it is also an invasive procedure that is highly resisted by hospitalised children due to pain or ***-pharmacological interventions are widely used in clinical practice due to their low cost,low risk and *** article provides a review with the aim of providing a reference for the selection of optimal analgesic interventions in the future.

关键词： children operative pain nonpharmacological interventions review

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压力下铁砷基化合物的超导电性研究

物理学报 2017年第3期66卷 172-185页

作者：衣玮吴奇孙力玲中国科学院物理研究所北京100190 中国科学院大学北京100190

随着高压实验设备与技术的不断发展,压力作为对物质状态调控的独立变量在凝聚态物理研究中得到了越来越广泛的应用.高压研究对发现新材料、新现象、新规律及对其形成机理的理解和对相关理论的验证起到了不可替代的重要作用,近年来在对... 详细信息

随着高压实验设备与技术的不断发展,压力作为对物质状态调控的独立变量在凝聚态物理研究中得到了越来越广泛的应用.高压研究对发现新材料、新现象、新规律及对其形成机理的理解和对相关理论的验证起到了不可替代的重要作用,近年来在对铁基超导体超导电性的高压研究中取得的诸多重要研究进展充分说明了这一点.本文简要介绍了在压力下铁砷基超导体中呈现出的一些有趣的物理现象及其所反映出的物理内涵,例如,压力下对1111体系超导电性的研究在指导常压下用小离子半径元素替代获得最高超导转变温度的铁砷基超导体和推测铁砷基超导体超导转变温度上限等方面起到了重要作用;压力可抑制122体系母相的磁有序进而诱发超导电性,并揭示出Eu-122体系中Eu离子插层的磁有序与FeAs层超导电性的关系;在新型铁砷基超导体Ca_(0.73)La_(0.27)FeAs_2中发现的压致双临界点现象等.希望本文能对读者了解铁砷基超导体的高压研究进展情况有所帮助.

关键词：高压超导电性铁砷基超导体

Expression of G3BP and RhoC in esophageal squamous carcinoma and their effect on prognosis

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World Journal of Gastroenterology 2007年第30期13卷 4126-4130页

作者： Hui-Zhong Zhang Jin-Geng Liu yi-Ping wei Cheng wu Yong-Ke Cao Mei Wang Department of Cardiothoracic Surgery The Second Affiliated Hospital Sun Yat-Sen University 107 Yan- Jiang Road Guangzhou 510120 Guangdong Province China

AIM: To investigate the expression and significance of G3BP and RhoC proteins in esophageal squamous carcinoma (ESC). METHODS: The expression of G3BP and Rhoc proteins in 80 cases of ESC was detected by immunohistochemistry. The relationship was studied between the expression of the two proteins and tumor size, differentiation degree, TNM stage, lymph node metastasis and prognosis of ESC. RESULTS: The positive expression rate of G3BP in ESC was 71.25%; and the rate in the lymph node metastasis group was significantly higher than that in the non- lymph node metastasis group (Z = -2.283, P = 0.022), but no relations were found between G3BP expression and tumor size, differentiation degree and TNM stage (P > 0.05). The group with G3BP positive expression had shorter survival time than the group with G3BP negative expression (P = 0.000). The positive expression rate of RhoC in ESC was 66.25%; and the rate in the lymph node metastasis group was significantly higher than that in the non-lymph node metastasis group (Z = -2.115, P 0.05). The RhoC positive expression group had a shorter survival time than the RhoC negative expression group (P < 0.001. The expression of G3BP protein correlated positively with the expression of RhoC in ESC tissues (rs = 0.656, P < 0.001). CONCLUSION: The expression of G3BP and RhoC protein is closely related to the lymph node metastasis and survival in ESC patients. G3BP and RhoC proteins can be considered as predictors of prognosis in ESC patients.

关键词： Esophageal neoplasm G3BP RhoC Immunohistochemistry Lymph node metastasis Prognosis