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Identifying timing and risk factors for early recurrence of resectable rectal cancer: A single center retrospective study

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World Journal of Gastrointestinal Surgery 2024年第9期16卷 2842-2852页

作者： Tsung-Jung Tsai Kai-Jyun Syu Xuan-Yuan Huang Yu Shih Liu Chang-Wei Chen yen-hang wu Ching-Min Lin Yu-Yao Chang Division of Colon and Rectal Surgery Department of SurgeryChanghua Christian HospitalChanghua 50006TaiwanChina Department of Surgery Changhua Christian HospitalChanghua 50006TaiwanChina Department of Post-Baccalaureate Medicine College of MedicineNational Chung Hsing UniversityTaichung 402202TaiwanChina

BACKGROUND Colorectal cancer is a common malignancy and various methods have been introduced to decrease the possibility of *** recurrence(ER)is related to worse *** date,few observational studies have reported on the analysis of rectal ***,we reported on the timing and risk factors for the ER of resectable rectal cancer at our *** To analyze a cohort of patients with local and/or distant recurrence following the radical resection of the primary *** Data were retrospectively collected from the institutional database from March 2011 to January *** data at diagnosis,perioperative and postoperative data,and first recurrence were collected and *** was defined via receiver operating characteristic *** factors were evaluated using the Kaplan–Meier method and Cox proportional hazards *** We included 131 *** optimal cut off value of recurrence-free survival(RFS)to differentiate between ER(n=55,41.9%)and late recurrence(LR)(n=76,58.1%)was 8 *** median post-recurrence survival(PRS)of ER and LR was 1.4 mo and 2.9 mo,respectively(P=0.008)but PRS was not strongly associated with RFS(R^(2)=0.04).Risk factors included age≥70 years[hazard ratio(HR)=1.752,P=0.047],preoperative concurrent chemoradiotherapy(HR=3.683,P9 d(HR=0.441,P=0.006).CONCLUSION RFS of 8 mo was the optimal cut-off *** ER was not associated with PRS,it was still related to prognosis;thus,intense surveillance is recommended.

关键词： Rectal cancer Early recurrence Prognosis Post-recurrence survival

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The jet over a stretching wall with suction or injection

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Science China(Physics,Mechanics & Astronomy) 2011年第3期54卷 502-510页

作者： XU hang wu GuoXiong State Key Laboratory of Ocean Engineering School of Naval Architecture Ocean and Civil Engineering Shanghai Jiao Tong University Shanghai 200240 China Department of Mechanical Engineering University College London London WC1E7JE UK

The steady laminar wall jet over a stretching surface in the presence of lateral suction or injection is considered. Similarity solutions absent in previous publications are found in some new ranges of parameters in the governing equation. The accuracy and reliability of the solutions have been checked through detailed convergence study and compared with the solutions from the numerical method and analytic method, and excellent agreement has been found. This gives the strongest evidence that those solutions are indeed new ones.

关键词： wall jet stretching wall injection/suction similarity solution

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Quantification of photosynthetic inorganic carbon utilisation via a bidirectional stable carbon isotope tracer

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Acta Geochimica 2016年第2期35卷 130-147页

作者： Hongtao hang Yanyou wu State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of SciencesGuiyang 550081 China University of Chinese Academy of Sciences Beijing 100049China

The amount of bicarbonate utilised by plants is usually ignored because of limited measurement methods. Accordingly, this study quantified the photosynthetic assimilation of inorganic carbon （COe and HCO3-） by plants. The net photosynthetic COa assimilation （PN）, the photosynthetic assimilation of CO2 and bicarbonate （PN＇）, the proportion of increased leaf area （lEA） and the stable carbon isotope composition （δ13C） of Orychophragmus violaceus （Ov） and Brassica juncea （B j） under three bicarbonate levels （5, 10 and 15 mm NaHCO3） were examined to determine the relationship among PN, PN＇ and fLA. PN＇, not PN, changed synchronously with fLA. Moreover, the proportions of exogenous bicarbonate and total bicarbonate （including exogenous bicarbonate and dissolved CO2-generated bicarbonate） utilised by Ov were 2.27 % and 5.28 % at 5 mm bicarbonate, 7.06 % and 13.28 % at 10 mm bicarbonate, and 8.55 % and 17.31% at 15 mm bicarbonate, respectively. Meanwhile, the propor- tions of exogenous bicarbonate and total bicarbonate uti- lised by Bj were 1.77 % and 3.28 % at 5 mm bicarbonate, 2.11% and 3.10 % at 10 mm bicarbonate, and 2.36 % and 3.09 % at 15 mm bicarbonate, respectively. Therefore, the dissolved CO2-generated bicarbonate and exogenous bicarbonate are important sources of inorganic carbon for plants.

关键词： Karst Bicarbonate - Photosynthesis -Inorganic carbonic utilization Stable carbon isotopecomposition

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Boron nitride silicone rubber composite foam with low dielectric and high thermal conductivity

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Chinese Journal of Chemical Engineering 2024年第4期68卷 224-230页

作者： Shuilai Qiu hang wu Fukai Chu Lei Song College of Safety and Ocean Engineering China University of Petroleum-BeijingBeijing 102249China State Key Laboratory of Fire Science University of Science and Technology of ChinaHefei 230026China

Silicone rubber(SR)is widely used in the field of electronic packaging because of its low dielectric *** this work,the porosity of the SR was improved,and the dielectric constant of the SR foam was reduced by adding expanded microspheres(EM).Then,the thermal conductivity of the system was improved by combining the modified boron nitride(f-BN).The results showed that after the f-BN was added,the dielectric constant and dielectric loss were much lower than those of pure ***-sized modified boron nitride(f-mBN)improved the dielectric and thermal conductivity of the SR foam better than that of nano-sized modified boron nitride(f-nBN),but f-nBN improved the volume resistivity,tensile strength,and thermal stability of the SR better than *** the mass ratio of f-mBN and fnBN is 2:1,the thermal conductivity of the SR foam reaches the maximum value of 0.808 W·m^(-1)·K^(-1),which is 6.5 times that before the *** heat release rate and fire growth index are the lowest,and the improvement in flame retardancy is mainly attributed to the high thermal stability and physical barrier of f-BN.

关键词： Foam Composites Dielectric properties Thermal conductivity Mechanical properties Flame retardant

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Study of Pseudogap in Underdoped Cuprate

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Communications in Theoretical Physics 2001年第7期36卷 91-94页

作者： LOU Ping wu hang-Sheng Department of Physics Anhui University Hefei 230039 China Department of Physics University of Science and Technology of China Hefei 230026 China

A mean-field spin-density wave (SDW) analysis of pseudogap in the underdoped cuprates is proposed on the dependence of the energy gap which mimics the pseudogap near (π, 0) point at least. It implies that the pseudogap structure near (π, 0) is not sensitive to the long-range order and will survive leading to the pseudogap phenomenon in the underdoped metallic phase. On the other hand, in the long-range ordering antiferromagnetic region, the mean-field SDW theory holds and the pseudogap structure predicated by the theory should be observable experimentallyv. Then one prediction is that the pseudogap would smoothly extrapolate between itinerant antiferromagnetic phase and underdoped metallic phase.

关键词： high-temperature superconductors, pseudogap, underdoped cuprates, mean-field SDW analysis

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不同冷却方式下高温混凝土的动态力学特性

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爆炸与冲击 2025年第1期45卷 011001-1-011001-15页

作者：吴栩霆王振周航张国凯李硕标南京理工大学机械工程学院江苏南京210094

为了研究高温混凝土在不同冷却方式下的动态力学特性，通过\begin{document}$\varnothing $\end{document}74 mm大口径分离式霍普金森压杆对不同冷却方式处理下不同温度的C30圆柱形混凝土试样进行了动态力学性能试验，得到了其在热、水... 详细信息

为了研究高温混凝土在不同冷却方式下的动态力学特性，通过\begin{document}$\varnothing $\end{document}74 mm大口径分离式霍普金森压杆对不同冷却方式处理下不同温度的C30圆柱形混凝土试样进行了动态力学性能试验，得到了其在热、水、力联合作用下的力学特性，探究了冷却方式、温度和加载条件对平均应变率的影响，重点分析了高温混凝土在不同方式冷却后的动态应力-应变曲线，以及冷却方式、温度和加载速率对其破碎形态、动态抗压强度、弹性模量、峰值应变及一系列动态效应的影响。结果表明：水冷混凝土试样的平均应变率受温度的影响更明显，不同冷却方式下加载速度与平均应变率近似呈线性关系;当温度达到400 ℃及以上时，试样颜色发生明显改变，相同温度下，水冷试样比自然冷却试样的颜色更深，出现更多细微裂纹，骨料形态破坏更严重;不同冷却方式下混凝土的动态抗压强度均与加载速度成正比，与加热温度成反比;水冷混凝土试样的弹性模量损伤系数低于自然冷却试样;高温混凝土试样的峰值应变与加热温度成正比，与加载速度成反比，且水冷混凝土试样的峰值应变相对值要高于自然冷却试样;混凝土的动载荷增加因子与温度及加载速度均成正比，且温度越高，混凝土的应变率效应越明显;当温度在200 ℃时，混凝土耗能系数出现反弹现象。

关键词：冷却方式冲击高温混凝土分离式霍普金森压杆动态力学特性破坏形态

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A Low Complexity Algorithm for Subcarrier-and-Bit Allocation in OFDMA-Based LTE Systems

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Journal of Electronic Science and Technology 2016年第4期14卷 355-361页

作者： Wei-Chiang wu Chieh-yen Hsu the Department of Electrical Engineering Da-Yeh University

In this paper, we propose optimum and sub-optimum resource allocation and opportunistic scheduling solutions for orthogonal frequency division multiple access （OFDMA）-based multicellular systems. The applicability, complexity, and performance of the proposed algorithms are analyzed and numerically evaluated. In the initial setup, the fractional frequency reuse （FFR） technique for inter-cell interference cancellation is applied to classify the users into two groups, namely interior and exterior users. Adaptive modulation is then employed according to the channel state information （CSI） of each user to meet the symbol error rate （SER） requirement. There then, we develop subcarrier-and-bit allocation method, which maximizes the total system throughput subject to the constraints that each user has a minimum data rate requirement. The algorithm to achieve the optimum solution requires high computational complexity which hinders it from practicability. Toward this suboptimum method with the reduced to the order of O（NIO, the total number of subcarriers end, we complexity propose a extensively where N and K denote and users, respectively. Numerical results show that the proposed algorithm approaches the optimum solution, yet it enjoys the features of simplicity, dynamic cell configuration, adaptive subearrier-and-bit allocation, and spectral efficiency.

关键词： Adaptive modulation fractional frequency reuse multiuser subcarrier-and-bit allocation,opportunistic scheduling orthogonal frequency division multiple access.

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A framework for the fusion of visual and tactile modalities for improving robot perception

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Science China(Information Sciences) 2017年第1期60卷 145-156页

作者： Wenchang Zhang Fuchun SUN hang wu Haolin YANG The State Key Laboratory of Intelligent Technology and Systems Tsinghua University

Robots should ideally perceive objects using human-like multi-modal sensing such as vision, tactile feedback, smell, and hearing. However, the features presentations are different for each modal sensor. Moreover,the extracted feature methods for each modal are not the same. Some modal features such as vision, which presents a spatial property, are static while features such as tactile feedback, which presents temporal pattern,are dynamic. It is difficult to fuse these data at the feature level for robot perception. In this study, we propose a framework for the fusion of visual and tactile modal features, which includes the extraction of features, feature vector normalization and generation based on bag-of-system(BoS), and coding by robust multi-modal joint sparse representation(RM-JSR) and classification, thereby enabling robot perception to solve the problem of diverse modal data fusion at the feature level. Finally, comparative experiments are carried out to demonstrate the performance of this framework.

关键词： multi-modal fusion robot perception vision tactile classification

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Classical Theory of Hot-Electron Transport in Electric and Magnetic Fields

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Communications in Theoretical Physics 2002年第3期38卷 370-374页

作者： WENG Ming-Qi wu hang-Sheng Department of Physics University of Science and Technology of China Hefei 230026 China Department of Physics University of Science and Technology of China Hefei 230026 China

Balance equation approach to the hot-electron transport in electric and magnetic fields is *** balance equations are re-derived from the Boltzmann equation. A new expression for the distribution function isreported in the present paper. It is homogeneous steady solution of the Boltzmann equation in constant relaxation timeapproximation. It holds when ωocτ < i or ωc < Te. As an example, the mobility of 2D electron gas in the GaAs-AlGaAsheterojunction is computed as a function of electric field and magnetic field.

关键词： hot-electron transport, balance equation, Boltzmann equation, mobility

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Ag-modified hydrogen titanate nanowire arrays for stable lithium metal anode in a carbonate-based electrolyte

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Journal of Energy Chemistry 2021年第3期30卷 282-290页

作者： Zhipeng Wen Dongzheng wu hang Li Yingxin Lin hang Li Yang Yang Jinbao Zhao State Key Lab of Physical Chemistry of Solid Surfaces Collaborative fnnovation Centre of Chemistry for Energy MaterialsState-Province JointEngineering Laboratory of Power Source Technology for New Energy VehicleEngineering Research Center of Electrochemical TechnologyMinistiy of EducationCollege of Chemistiy and Chemical EnginesringXiamen UniversityXiamen 361005FujianChina College of Energy&School of Energy Research Xiamen University Xiamen 361102FujianChina School of Chemical Engineering cmd Light Industry Guangdong University of TechnologyGuangzhou 510006CuangdongChina

In the investigation of the next-generation battery anode,Li metal has attracted increasing attention owing to its ultrahigh specific capacity and low reduction ***,its low columbic efficiency,limited cycling life,and serious safety hazards have hindered the practical application of rechargeable Li metal *** several strategies have been proposed to enhance the electrochemical performance of Li metal anodes,most are centered around ether-based electrolytes,which are volatile and do not provide a sufficiently large voltage ***,we aimed to attain stable Li deposition/stripping in a commercial carbonate-based ***,we have successfully synthesized hydrogen titanate(HTO)nanowire arrays decorated with homogenous Ag nanoparticles(NPs)(Ag@HTO)via simple hydrothermal and silver mirror *** 3 D cross-linked array structure with Ag NPs provides preferable nucleation sites for uniform Li deposition,and most importantly,when assembled with the commercial LiNi_(0.5)Co0.2Mn_(0.3)O_(2) cathode material,the Ag@HTO could maintain a capacity retention ratio of 81.2% at 1 C after 200 cycles,however the pristine Ti foil failed to do so after only 60 *** research therefore reveals a new way of designing current collectors paired with commercial high voltage cathodes that can create high energy density Li metal batteries.

关键词： Hydrogen titanate nanowire arrays Ag nanoparticles Li metal anode Carbonate-based electrolyte

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