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以文学的方式“重构”古代西域——读邱华栋《空城纪》

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当代文坛 2025年第1期 15-22页

作者：贺仲明暨南大学中文系

邱华栋的长篇小说《空城纪》以古西域历史为背景,虚实结合,讲述了多个古西域国度的故事。其涉及广阔的地域和漫长时代,塑造了大量生动的人物形象,对其地理、气候、环境和日常生活做了细致再现,是对历史的深度还原。同时,作品还表达了各... 详细信息

邱华栋的长篇小说《空城纪》以古西域历史为背景,虚实结合,讲述了多个古西域国度的故事。其涉及广阔的地域和漫长时代,塑造了大量生动的人物形象,对其地理、气候、环境和日常生活做了细致再现,是对历史的深度还原。同时,作品还表达了各时代人们对爱和美的追求、对和平的向往,蕴含着民族和谐和文明发展的内在价值观念。作品建构于作者对地方的深厚感情和翔实资料的基础之上,也传达出现代的人文精神和思想理念,更呈现出过人的艺术想象力,是一次对古西域历史的卓越文学建构。

关键词：《空城纪》西域文学历史

Synthesis, Crystal Structure and Biological Activities of 3-[2-(4-Fluoro-phenyl)-ethyl]-5-methyl-4-hydroxyl-4-methyl-7-methylsulfanyl-3,4-dihydro-pyrido[4,3-d]pyrimidine-8-carbonitrile

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Chinese Journal of Structural Chemistry 2007年第2期26卷 172-176页

作者： MO Wen-Yan he hong-Wu College of Chemistry Central China Normal University Wuhan 430079 China

The title compound, 3-[2-（4-fluoro-phenyl）-ethyl]-5-methyl-4-hydroxyl-4-methyl- 7-methylsulfanyl-3,4-dihydro-pyrido[4,3-d]pyrimidine-8-carbonitrile, has been prepared and detemined by single-crystal X-ray diffraction. The crystal belongs to the triclinic system, space group P1 with a = 6.8754（8）, b = 10.2617（12）, c = 13.3491（16） A, α = 93.163（2）, β = 96.704（2）, γ = 102.421（2）°, V= 910.35（19）A^3, Z= 2, Mr= 370.44, Dc= 1.351 g/cm^3,μ = 0.203 mm^-1,F（000） = 388, the final R = 0.0573 and wR = 0.1497. X-ray analysis reveals that the pyridine and pyrimidine rings are almost coplanar.

关键词： pyrido[4,3-d]pyrimidine synthesis crystal structure biological activities

Can patients with mild non-neoplastic lesions diagnosed at baseline screening be safely exempt from surveillance: evidence from multicenter community-based cohorts

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Science China Life Sciences 2025年第1期 263-271页

作者： Siyi he Zhiyi Zhang Guohui Song Zhenhai Wang Chunyun Dai Shipeng Yan Kun Jiang Bingbing Song he Li Maomao Cao Dianqin Sun Fan Yang Xinxin Yan Shaoli Zhang Yi Teng Qianru Li Changfa Xia Wanqing Chen Office of Cancer Screening National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical College Department of Gastroenterology Gansu Wuwei Tumor Hospital Cixian Cancer Institute Linzhou Cancer Hospital Center for Disease Control and Prevention of Sheyang County Department of Cancer Prevention and Control Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of MedicineCentral South University Luoshan Center for Disease Control and Prevention Office for Cancer Control and Research Affiliated Cancer Hospital of Harbin Medical University

Surveillance recommendations for gastric cancer（GC） in current guidelines focused on advanced precancerous lesions and were based on precise diagnosis of severity/extent of baseline lesions. We aimed to develop a less endoscopy-related equipment-dependent risk-stratification tool, and assessed whether mild-precursor-lesion patients can be safely exempt from surveillance. In the multicenter communitybased cohort, 75,051 participants receiving baseline endoscopy were enrolled during 2015–2017 and followed-up until 2021. Cumulative incidence rates（CIRs） of GC for precancerous-conditions were calculated by Kaplan-Meier method and compared by Log-rank tests. Mixedeffects Cox regression models were used to detect potential factors for progression towards GC. A risk score was calculated as counts of selected factors. An independent cohort, including 26,586 participants was used for external validation. During a median follow-up of 6.25 years, CIRs of GC were 0.302%, 0.436%, and 4.756% for normal group, non-neoplastic（atrophic gastritis/intestinal metaplasia） and neoplastic lesions（low-grade/high-grade dysplasia）, respectively(Ptrendher GC risks（adjusted HR=7.73, 95%CI: 4.29–13.92）, and their four-year CIR reached the one-year CIR of neoplastic lesions. Further categorizing non-neoplastic lesions by histological grade, both patients with moderate-to-severe lesions（aHR=3.07, 95%CI: 1.67–5.64） and high-risk patients with mild lesions（aHR=7.29, 95%CI: 3.58–14.86） showed higher risks. Consistent trends were observed in validation cohort. High-risk mild-precursor-lesion patients should receive surveillance within 3–5 years after baseline screening. Our study provides evidence on supplementing current guideline recommendations.

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Capacity and failure mechanism of laterally loaded jet-grouting reinforced piles: Field and numerical investigation

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Science China(Technological Sciences) 2016年第5期59卷 763-776页

作者： he Ben WANG Li Zhong hong Yi College of Civil Engineering and Architecture Zhejiang University

This study presents the results of field and numerical investigations of lateral stiffness, capacity, and failure mechanisms for plain piles and reinforced concrete piles in soft clay. A plastic-damage model is used to simulate concrete piles and jet-grouting in the numerical analyses. The field study and numerical investigations show that by applying jet-grouting sur- rounding the upper 7.5D （D = pile diameter） of a pile, lateral stiffness and beating capacity of the pile are increased by about 110% and 100%, respectively. This is partially because the jet-grouting increases the apparent diameter of the pile, so as to en- large the extent of failure wedge and hence passive resistance in front of the reinforced pile. Moreover, the jet-grouting pro- vides a circumferential confinement to the concrete pile, which suppresses development of tensile stress in the pile. Corre- spondingly, tension-induced plastic damage in the concrete pile is reduced, causing less degradation of stiffness and strength of the pile than that of a plain pile. Effectiveness of the circumferential confinement provided by the jet-grouting, however, diminishes once the grouting cracks because of the significant vertical and circumferential tensile stress near its mid-depth. The lateral capacity of the jet-grouting reinforced pile is, therefore, governed by mobilized passive resistance of soil and plastic damage of jet-grouting.

关键词： jet-grouting reinforced cast-in-place piles field test finite element analysis lateral bearing capacity lateral stiffness plastic damage failure mechanism

Localizing base stations with measured data:a concatenated image-based deep learning approach

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Science China(Information Sciences) 2025年

作者： Yang CheN Ziyuan LIU Feng JIANG hong SheN Wei XU Mengyu LI Ritao CheNG National Mobile Communications Research Laboratory Southeast University China Mobile Group Design Institute Co. Ltd.

Localization has become an indispensable function of modern cellular communication systems[1]. In a cloud radio access network （C-RAN）, the remote radio head （RRH） is the actual signal transmitter, whose location ...

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Mechanical Behaviors of Soft Elastomers Filled with LowMelting Alloys

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Acta Mechanica Solida Sinica 2023年第2期36卷 221-229页

作者： Zilu he hong Zhang Rui Xiao Shaoxing Qu Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province Department of Engineering MechanicsZhejiang UniversityHangzhou 310027China

Soft elastomers with mechanical properties similar to biological tissues have shown encouraging potential in applications of biomedical devices and stretchable *** the ability to enhance electric and thermal conductivity,embedding low melting alloys into soft elastomer matrix has received considerable attention in recent ***,the mechanical properties,especially the fatigue behaviors of these soft composites,have not been extensively ***,we fabricate two silicone elastomers filled with eutectic gallium-indium,a liquid metal alloy,which has a melting temperature around room *** cyclic loading–unloading tests are first performed on the composites with low melting alloys in either solid or fluid *** results show that the modulus and energy dissipation density of the composite increase with the ratio of the alloys when the deformation temperature is below the melting temperature,while these properties decrease with the ratio of alloys when they are in the fluid *** contrast,the failure strain shows an opposite *** tests are further performed on specimens with a precut to measure the fracture energy and fatigue *** is demonstrated that both fracture energy and fatigue threshold are significantly enhanced in the presence of low melting alloys regardless of their ***,we apply a continuum damage model to describe the Mullins effect of the soft composites observed in the loading–unloading cycles,which further reveals the change of mechanical properties with deformation for different compositions of soft composites.

关键词： Soft elastomer Low melting alloy Mullins effect Fatigue

Size and temperature effects on band gaps in periodic fluid-filled micropipes

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Applied Mathematics and Mechanics(English Edition) 2021年第9期42卷 1219-1232页

作者： Jun hong Zhuangzhuang he Gongye ZHANG Changwen MI Jiangsu Key Laboratory of Engineering Mechanics School of Civil EngineeringSoutheast UniversityNanjing 210096China

A new model is proposed for determining the band gaps of flexural wave propagation in periodic fluid-filled micropipes with circular and square thin-wall cross-sectional shapes, which incorporates temperature, microstructure, and surface energy effects. The band gaps depend on the thin-wall cross-sectional shape, the microstructure and surface elastic material constants, the pipe wall thickness, the unit cell length, the volume fraction, the fluid velocity in the pipe, the temperature change,and the thermal expansion coefficient. A systematic parametric study is conducted to quantitatively illustrate these factors. The numerical results show that the band gap frequencies of the current non-classical model with both circular and square thin-wall cross-sectional shapes are always higher than those of the classical model. In addition,the band gap size and frequency decrease with the increase of the unit cell length according to all the cases. Moreover, the large band gaps can be obtained by tailoring these factors.

关键词： band gap couple stress surface energy size effect conveying fluid thermal load

Review on synergistic damage effect of irradiation and corrosion on reactor structural alloys

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Nuclear Science and Techniques 2024年第3期35卷 109-141页

作者： Hui Liu Guan-hong Lei he-Fei Huang Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China

The synergistic damage effect of irradiation and corrosion of reactor structural materials has been a prominent research *** paper provides a comprehensive review of the synergistic effects on the third-and fourth-generation fission nuclear energy structural materials used in pressurized water reactors and molten salt *** competitive mechanisms of multiple influencing factors,such as the irradiation dose,corrosion type,and environmental temperature,are summarized in this *** approaches are proposed to alleviate the synergistic damage caused by irradiation and corrosion,thereby promoting in-depth research in the future and solving this key challenge for the structural materials used in reactors.

关键词： Irradiation and corrosion Synergistic effect Austenitic stainless steels Nickel-based alloys Reactors

Topological Equivalence Theorem and Double-Copy for Chern-Simons Scattering Amplitudes

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Research 2023年第2期2023卷 43-51页

作者： Yan-Feng Hang hong-Jjan he Cong Shen Tsung-Dao Lee Institute and School of Physics and Astronomy Key Laboratory for Particle Astrophysics and Cosmology(MOE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai Jiao Tong UniversityShanghaiChina Department of Physics and Institute of Modern Physics Tsinghua UniversityBejingChina Center for High Energy Physics Peking UniversityBeijingChina Fields and Strings Laboratory Institute of PhysicsEcole Polytechnique Federale de LausanneLausanneSwitzerland

We study the mechanism of topological mass generation for 3-dimensional Chern-Simons gauge theories and propose a brand-new topological equivalence theorem to connect scattering amplitudes of the physical gauge boson ... 详细信息

关键词： expansion gauge topological