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深厚软土且空间受限条件下桩板结构现浇梁支架方案设计

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价值工程 2025年第1期44卷 82-85页

作者：栗帅武中铁十七局集团(广州)建设有限公司广州510663

桩板结构具有结构简单、受力明确等优点,能够减少材料用量,降低工程造价,在跨越小面积的河流、道路或其他交通设施时,得到广泛使用。莲鹤大道项目与珠肇高铁并行段,设计采用桩板结构桥梁,共计3100m,地质条件复杂,淤泥质软土深厚,梁底距... 详细信息

桩板结构具有结构简单、受力明确等优点,能够减少材料用量,降低工程造价,在跨越小面积的河流、道路或其他交通设施时,得到广泛使用。莲鹤大道项目与珠肇高铁并行段,设计采用桩板结构桥梁,共计3100m,地质条件复杂,淤泥质软土深厚,梁底距离地面空间受限,现浇梁施工难度大。设计方建议采用贝雷梁+工字钢结构形式支架方案,由于部分梁底距离地面净空不足,该方案向下反开挖最多达3.0m,施工工效低,投入大。本文针对不同净空条件,研究了三种支架结构,满足共线段3.1km桩板结构现浇梁施工,提高了施工工效,降低了施工成本,为后续类似工程提供了参考。

关键词：桩板结构深厚软土空间受限支架现浇

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Distributed event region fault-tolerance based on weighted distance for wireless sensor networks

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Journal of Systems Engineering and Electronics 2009年第6期20卷 1351-1360页

作者： li Ping li Hong wu Min School of Information Science and Engineering Central South Univ. Changsha 410083 P. R. China

Event region detection is the important application for wireless sensor networks（WSNs）, where the existing faulty sensors would lead to drastic deterioration of network quality of *** single-moment nodes fault-tolerance, a novel distributed fault-tolerant detection algorithm named distributed fault-tolerance based on weighted distance（DFWD） is proposed, which exploits the spatial correlation among sensor nodes and their redundant *** sensor networks, neighborhood sensor nodes will be endowed with different relative weights respectively according to the distances between them and the central *** syncretized the weighted information of dual-neighborhood nodes appropriately, it is reasonable to decide the ultimate status of the central sensor ***, readings of faulty sensors would be corrected during this *** results demonstrate that the DFWD has a higher fault detection accuracy compared with other algorithms, and when the sensor fault probability is 10%, the DFWD can still correct more than 91% faulty sensor nodes, which significantly improves the performance of the whole sensor network.

关键词： event region detection weighted distance distributed fault-tolerance wireless sensor network.

UPPER BOUND FOR FINITE-TIME RUIN PROBABIliTY IN A MARKOV-MODULATED MARKET

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Journal of Systems Science & Complexity 2011年第2期24卷 308-316页

作者： Jinzhu li Rong wu School of Mathematical Sciences and LPMC Nankai University Tianjin 300071 China.

This paper studies the upper bound for finite-time ruin probability of an insurance company which invests its wealth in a stock and a bond. The authors assume that the interest rate of the bond and the volatility of the stock are modulated by a continuous-time stationary Markov chain with finite state. By a pure probabilistic method, the upper bound for the finite-time ruin probability is obtained.

关键词： Finite-time ruin probability jump-diffusion model Markov-modulated process.

Yb^(3+)-and Er^(3+)-doped Y_(2)O_(3) microcrystals for upconversion photoluminescence and energy transfer with enhancements of near-ultraviolet emission

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Rare Metals 2021年第1期40卷 123-127页

作者： Jin-Bo Zhao li-li wu School of Materials Science and Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China Key Laboratory for liquid-Solid Structural Evolution and Process of Materials(Ministry of Education) Shandong UniversityJinan 250061China School of Materials Science and Engineering Shandong UniversityJinan 250061China

Yb^(3+)and Er^(3+)were doped into Y_(2)O_(3) to form Y_(2)O_(3):Yb^(3+),Er^(3+)*** effect of doping concentration of Yb^(3+)was *** near-ultraviolet(UV)upconversion(UC)emission spectra of Y_(2)O_(3):Yb^(3+),Er^(3+)were studied under 1.55-μm *** near-UV UC emissions centered at 391 and 418 nm were enhanced by Yb^(3+)under 1.55-μm laser ***^(3+)generally acts as activator and is not used as sensitizer in the reference Er^(3+)-doped *** the present upconversion process under the 1.55-μm laser excitation,the energy transfer from Er^(3+)to Yb^(3+)and then Yb^(3+)to Er^(3+)was *** Er^(3+)acted as not only activator but also *** energy transfer between Er^(3+)and Yb^(3+)enhanced the near-UV UC emission of our materials.

关键词： Upconversion Photoluminescence Y_(2)O_(3):Yb^(3+)/Er^(3+) 1.55-μm excitation Optical materials and properties

Phenotypic Classification of Well-Differentiated Gastric Adenocarcinoma

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Chinese Journal of Cancer Research 2009年第4期21卷 278-289页

作者： Ying wu Zhong-wu li Ji-you li Key Laboratory of Carcinogenesis and Translational Research （Ministry of Education） Department ofPathology Peking University School of Oncology Beijing Cancer Hospital ＆ Institute Beijing 100142China

Objective： To investigate the genotypes of well-differentiated non-cardiac gastric adenocarcinoma and their clinicopathological significance. Methods： Sixty-four cases of well-differentiated non-cardiac gastric adenocarcinoma were included in this study. The expressions of intestinal phenotypic markers including CDX2, MUC2, li-cadherin, CD10, Hepatocyte（Hep） and Villin, and gastric phenotypic markers including MUC5AC and pS2 were detected immunohistochemically. Based on the expressions of phenotypic markers, 64 cases can be divided into four phenotypes. Cases only expressing intestinal phenotypic markers were classified as intestinal phenotype; cases only expressing gastric phenotypic markers as gastric phenotype; cases expressing both intestinal and gastric phenotypic markers as gastrointestinal phenotype; and cases expressing neither intestinal nor gastric phenotypic marker as null phenotype. The association of phenotype and clinic-pathological parameters was analyzed. We also detected the expressions of markers related to the development and progression of cancer, including Rb, P53, c-Met, MIF, TGF-β-RII, β-catenin, CD44v6 and E-cadherin. Results： Of 64 cases, 33（51.6%） were intestinal type, 3（4.7%） were gastric type, 25（39.1%） were gastrointestinal type and 3（4.7%） were null type. Fifty-eight cases were either intestinal or gastrointestinal type, which accounted for 90.6% of all the cases. In addition, there was an association between phenotype and biological behaviors （invasion or metastasis）. The biological behaviors of intestinal and gastrointestinal type were better than gastric type. Compared with intestinal, gastric and gastrointestinal types, the biological behaviors of null type were the most aggressive. The biological behaviors of gastric carcinoma tended to be better as the number of expression of intestinal markers increased. Expression of markers related to the development and progression of cancer was not significantly correlated with phenotypes a

关键词： Gastric carcinoma Phenotype Immunohistochemistry Biological behavior

An Experimental Study of Features Search under Visual Interference in Radar Situation-Interface

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Chinese Journal of Mechanical Engineering 2018年第3期31卷 144-157页

作者： Xiao-li wu Jing li Feng Zhou China College of Mechanical and Electrical Engineering Hohai University College of Furnishings and Industrial Design Nanjing Forestry University

As was found through information interface analysis of target search in fighter radar situation environment,there are many of visual attention problems caused by complex environment and features,which generate visual interfer?ence. This paper extracts the interference environment of situation interface and the feature of information matter as the major factors,also and adopts the interference environment,featured items and quantity as three variables to conduct the experimental study on simulation of the feature search fighter information identification. The experi?mental results showed that the information identification under low and high interference environments revealed to a significant di erence. Due to the high interference environment formed by various information presented in the radar situation?interface,only if being forcibly free from interference could the pilots be able to realize the information identification precisely. Three features,i.e.,regular shape?single color,irregular shape?single color and irregular shape?hybrid color,presented a trend of progressive increase of reaction time,which suggested that irregular shape?hybrid color was the di cult cognition and the long reaction time. The eye movement data also suggested that the target search under high interference environment displayed the longer fixation time,more saccade counts and longer scan path,than under low interference environment. In addition,the first saccade time,the total fixation time and saccade counts of featured items search presented an increasing trend,which is the same as reaction. Therefore,the colors and shapes of featured items exerted a remarkable influence to the judgment of objects target. In conclusion the interference environment and the information matter features both have played the important roles in influence of the information identification in the radar situation?interface. The environment and the features are the design fac?tors,which needed for consideration

关键词： Radar situation?interface Goal?seeking Visual interference Interference environment Information matter features Target identification Visual displays

On the Compactness of Grunsky Differential Operators

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Chinese Annals of Mathematics,Series B 2020年第4期41卷 559-572页

作者： li wu Yuliang SHEN Department of Mathematics Soochow UniversitySuzhou 215006JiangsuChina.

Grunsky operators play an important role in classical geometric function theory and in the study of Teichmüller *** Grunsky map is known to be holomorphic on the universal Teichmüller *** this paper the authors deal with the compactness of a Grunsky differential *** will give upper and lower estimates of the essential norm of a Grunsky differential operator and discuss when a Grunsky differential operator is a p-Schatten class operator.

关键词： Universal Teichmüller space Beltrami coefficient Grunsky operator Compact operator p-Schatten class operator Essential norm

Correlation between mechanical and thermodynamic properties for La-Ce-Ni-Cu-Al high-entropy metallic glasses

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Journal of Iron and Steel Research International 2018年第6期25卷 658-665页

作者： lin wu Yong Zhao Jun-jun li Ji-li wu Bo Zhang Institute of Amorphous Matter Science and School ofMaterials Science and Engineering Hefei University of Technology Hefei 230009 Anhui China

The mechanical properties, thermodynamic features and their correlation were studied for La-Ce-Ni-Cu-Al high-entropy bulk metallic glasses （HE-BMGs）. Compressive testing indicated that the HE-BMGs are ductile on a microscopic scale but brittle on a macroscopic scale, because of the low fragility index rn of the HE-BMGs. In the non-isothermal process, the activation energies for glass transition for these HE-BMGs are the lowest of the known HE-BMGs. Large values of the Avrami exponent n imply that the crystallization process proceeded through three-dimensional growth and with an increasing nucleation rate. The activation energy for glass transition （Eg） is almost proportional to the HE-BMG fracture strength, because a higher Eg is required to dislodge the molecules from the glassy configuration for the HE-BMGs with a high strength. The findings provide unambiguous evidence for the correlation between the mechanical and thermodynamic properties.

关键词： High-entropy bulk metallic glass Fracture mechanism Crystallization Avrami exponent Glass-transitionactivation energy

Kimura's disease in soft palate with clinical and histopathological presentation: A case report

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World Journal of Clinical Cases 2022年第12期10卷 3842-3848页

作者： wu li Department of Head and Neck Surgery Hunan Cancer Hospital&the Affiliated Cancer Hospital of Xiangya School of MedicineCentral South UniversityChangsha 410000Hunan ProvinceChina

BACKGROUND Kimura’s disease is an inflammatory disease that is usually found in the deep lymph nodes of the head and *** rare,It is most frequently seen in young *** oral cavity and salivary glands may also be *** are no reports on tumor occurring in soft *** have encountered a case of Kimura’s disease in the soft palate of an elderly *** SUMMARY A 63-year-old elderly Chinese woman with a slowly growing mass in the upper jaw was referred to our service.A biopsy to the mass was taken after the patient was referred to our *** tumor was diagnosed as *** performed cervical lymph node puncture and partial surgical excision of the *** tumor,which showed signs of marked follicular hyperplasia with follicles surrounded by eosinophils and lymphocytes,was located within the soft ***’s disease was diagnosed after histopathologic examination of the resected *** etiology of Kimura’s disease is not fully *** current model includes T-cells involvement with cytokines also playing a *** patient was without evidence for recurrence of partially resected area 6 mo *** report shows that Kimura’s disease is not limited to the head,neck,and salivary gland lymph *** present a case of a tumor in soft *** location adds another possible site for consideration during the differential diagnoses of a slowly growing *** The present case illustrates a characteristic description of Kimura’s *** case highlights the main differences between Kimura’s disease and angiolymphoid hyperplasia with eosinophilia.

关键词： Kimura's disease Soft palate Clinical manifestations Histopathological presentation Case report