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Frontiers of Environmental Science & Engineering 2021年第5期15卷 201-212页

作者： Qinxue Wen shuo yang Zhiqiang Chen State Key Laboratory of Urban Water Resource and Environment Harbin Institute of Technology(SKLUWREHIT)Harbin150090China School of Environment Harbin Institute of TechnologyHarbin150090China

The role of norfloxacin(NOR)and sulfamethoxazole(SMX)in mesophilic and thermophilic anaerobic digestion(AD)of pig manure,with respect to methane production and variations in the microbial community and resistance genes,including antibiotic resistance genes(ARGs),class I integrase(intIl),and heavy metal resistance genes(MRGs),was *** results indicated that NOR exerted little influence on the microbial community,whereas SMX negatively affected the acetoclastic *** abundance of two sulfonamide resistance genes(sul1 and sul2),three quinolone resistance genes(qnrS,parC,and aac(6′)-Ib-cr),and intI1 decreased by 2–3 orders of magnitude at the end of thermophilic *** contrast,mesophilic AD was generally ineffective in reducing the abundance of resistance *** to the results of redundancy analysis,the abundance of ARGs was affected primarily by microbial community dynamics(68.5%),rather than the selective pressure due to antibiotic addition(13.3%).Horizontal gene transfer(HGT)through intI1 contributed to 26.4%of the ARG *** archaeal community also influenced the changes in the resistance genes,and ARG reduction was significantly correlated with enhanced methane *** AD presented a higher methane production potential and greater reduction in resistance gene abundance.

关键词： Pig manure Antibiotics Anaerobic digestion Resistance genes Microbial community

Fatigue Crack Growth Rate of Ti-6Al-4V Considering the Effects of Fracture Toughness and Crack Closure

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Chinese Journal of Mechanical Engineering 2015年第2期28卷 409-415页

作者： ZHANG Junhong yang shuo LIN Jiewei State Key Laboratory of Engines Tianjin University

Fatigue fracture is one of the main failure modes of Ti-6A1-4V alloy,fracture toughness and crack closure have strong effects on the fatigue crack growth（FCG）rate of Ti-6A1-4V *** FCG rate of Ti-6A1-4V is investigated by using experimental and analytical *** effects of stress ratio,crack closure and fracture toughness on the FCG rate are studied and discussed.A modified prediction model of the FCG rate is proposed,and the relationship between the fracture toughness and the stress intensity factor（SIF）range is redefined by introducing a correcting *** plate fatigue tests（including the fracture toughness test and the FCG rate test）are conducted to investigate the influence of affecting factors on the FCG *** between the predicted results of the proposed model,the Paris model,the Walker model,the Sadananda model,and the experimental data show that the proposed model gives the best agreement with the test data particularly in the near-threshold region and the Paris region,and the corresponding calculated fatigue life is also accurate in the same *** considering the effects of fracture toughness and crack closure,the novel FCG rate prediction model not only improves the estimating accuracy,but also extends the adaptability of the FCG rate prediction model in engineering.

关键词： Ti-6Al-4V fatigue crack growth stress ratio crack closure fracture toughness life prediction

Numerical study on flow fields and aerodynamics of tilt rotor aircraft in conversion mode based on embedded grid and actuator model

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Chinese Journal of Aeronautics 2015年第1期28卷 93-102页

作者： Zhang Ying Ye Liang yang shuo Aviation Key Laboratory of Science and Technology on Aerodynamics of High Speed and High Reynolds Number AVIC Aerodynamics Research Institute

A method combining rotor actuator disk model and embedded grid technique is presented in this paper, aimed at predicting the flow fields and aerodynamic characteristics of tilt rotor aircraft in conversion mode more efficiently and effectively. In this method, rotor＇s influence is considered in terms of the momentum it impacts to the fluid around it; transformation matrixes among different coordinate systems are deduced to extend actuator method＇s utility to conversion mode flow fields＇ calculation. Meanwhile, an embedded grid system is designed, in which grids generated around fuselage and actuator disk are regarded as background grid and minor grid respectively, and a new method is presented for ‘donor searching＇ and ‘hole cutting＇ during grid assembling. Based on the above methods, flow fields of tilt rotor aircraft in conversion mode are simulated, with threedimensional Navier–Stokes equations discretized by a second-order upwind finite-volume scheme and an implicit lower–upper symmetric Gauss–Seidel（LU-SGS） time-stepping scheme. Numerical results demonstrate that the proposed CFD method is very effective in simulating the conversion mode flow fields of tilt rotor aircraft.

关键词： actuator aircraft rotor searching assembling symmetric coordinate donor stepping Stokes

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考虑双线相互干涉的铁路项目施工组织研究

山东理工大学学报（自然科学版） 2025年第1期39卷 52-59页

作者：周亦威杨烁郭锴上海理工大学管理学院上海200093 上海理工大学智慧应急管理学院上海200093

针对线状活动铁路工程施工场景,在双线相互干涉条件下,基于线性计划方法,对双线的空间表达以施工区段为单位进行重构,建立时间-施工区段模型,考虑时间、空间、施工资源等约束,构建线路内部约束条件,再以线路内部约束为基础,建立线路间... 详细信息

针对线状活动铁路工程施工场景,在双线相互干涉条件下,基于线性计划方法,对双线的空间表达以施工区段为单位进行重构,建立时间-施工区段模型,考虑时间、空间、施工资源等约束,构建线路内部约束条件,再以线路内部约束为基础,建立线路间约束条件。结合标准遗传算法,以各条线路各区段内施工资源配置情况为自变量,构建双线相互干涉条件下铁路工程施工进度计划工期优化算法,能够在算法中自动输出最优工期条件下的资源配置情况,根据算法输出的最优工期和资源配置情况制作对应的线性计划图。算例仿真结果表明,工期优化模型和算法能够高效获得最短工期下双线相互干涉的铁路项目施工进度计划,验证了本文模型的合理性和算法的有效性。

关键词：铁路施工进度管理线性计划方法遗传算法双线相互干涉

线粒体功能障碍与肌腱病:靶向线粒体治疗的可能性

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中国组织工程研究 2025年第20期29卷 4276-4285页

作者：杨朔张振白硕盛黎申亮孙青峰高蓓瑶葛瑞东江山西安交通大学第二附属医院康复医学科陕西省西安市710004 北京大望路急诊抢救医院康复医学科北京市100122 北京市朝阳区太阳宫社区卫生服务中心康复医学科北京市100028 北京体育大学运动医学与康复学院北京市100091 内蒙古赤峰市医院康复医学科内蒙古自治区赤峰市024000 中日友好医院康复医学科北京市100029

背景:临床上治疗肌腱病的多种策略的短期效果较好而长期效果不佳,研究证明线粒体与肌腱病的发生发展有密切关系,但目前尚未总结出线粒体与肌腱病之间的关系和靶向线粒体治疗肌腱病的策略,不利于专科从业者及相关领域学者了解研究近况。... 详细信息

背景:临床上治疗肌腱病的多种策略的短期效果较好而长期效果不佳,研究证明线粒体与肌腱病的发生发展有密切关系,但目前尚未总结出线粒体与肌腱病之间的关系和靶向线粒体治疗肌腱病的策略,不利于专科从业者及相关领域学者了解研究近况。目的:综述现有的临床或临床前原始研究,以期对线粒体功能障碍与肌腱病之间的关系、靶向线粒体治疗肌腱病的方法进行总结,并对未来线粒体在肌腱病中的评估和管理进行一定的展望。方法:检索PubMed、Web of Science、中国知网、万方和维普数据库中的相关文献。检索时限为2009年1月至2024年3月,英文检索词为“Tendinopathy,Tendons Injuries,Tendon,Tendons,Mitochondria,Mitochondria Dysfunction,Mitochondria Disease”;中文检索词为“肌腱,肌腱病,肌腱炎,线粒体,线粒体功能障碍,线粒体疾病”。根据纳排标准对检索结果进行筛选,最终纳入62篇文献进行综述。结果与结论:①在临床的肌腱病患者或是肌腱病模型中,普遍存在线粒体功能障碍,主要以活性氧过量产生、超氧化物歧化酶活性降低、嵴杂乱和线粒体数量减少为代表,这说明线粒体将会由于肌腱损伤而发生功能障碍,从而进一步恶化肌腱病,形成恶性循环。②当肌腱尚未损伤或肌腱病尚未发生时,线粒体功能会由于受到内外界各种因素的影响而发生功能障碍,从而诱发肌腱病,这说明正常肌腱将会由于线粒体的功能异常而被损害,发生病变甚至断裂。③机械拉伸应力、晚期糖基化终产物及衰老等内外界因素是导致线粒体功能发生障碍的主要原因,且这些因素将会通过细胞凋亡、炎症和呼吸链损害等分子机制,损害正常肌腱的生物活性与力学性能,诱发肌腱病的发生。④针对分子机制而归纳总结的靶向线粒体治疗方法主要包括线粒体转移/移植、移植及靶向抗氧化剂等。⑤文章主要针对具有肌腱病的临床患者或具有相似造模方式的动物模型,为临床上探讨肌腱病的发病机制以及靶向治疗肌腱病的方法提供新思路,但缺点在于纳入的研究以动物实验为主,需要更多临床试验加以验证。

关键词：线粒体线粒体疾病线粒体功能障碍肌腱病肌腱损伤肌腱炎氧化应激生物活性分子机制综述

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Towards Efficient Robotic Software Development by Reusing Behavior Tree Structures for Task Planning Paradigms

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Complex System Modeling and Simulation 2023年第4期3卷 357-380页

作者： shuo yang Qi Zhang College of Systems Engineering National University of Defense TechnologyChangsha 410072China

interaction pipelines while maintaining interfaces for task-specific *** Structural-BT framework supports the modular design of structure functionalities and allows easy extensibility of the inner planning flows between BT *** the Structural-BT framework,software engineers can develop robotic software by flexibly composing BT structures to formulate the skeleton software architecture and implement task-specific algorithms when *** the experiment,this paper develops robotic software for diverse task scenarios and selects the baseline approaches of Robot Operating System(ROS)and classical BT development frameworks for *** quantitatively measuring the reuse frequencies and ratios of BT structures,the Structural-BT framework has been shown to be more efficient than the baseline approaches for robotic software development.

关键词： robotic software modeling and development software architecture task planning paradigm behavior tree modeling

Dynamic generation of entangling wave packets in XY spin system with decaying long-range couplings

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Science China(Physics,Mechanics & Astronomy) 2008年第1期51卷 45-55页

作者： yang shuo SONG Zhi SUN ChangPu Department of Physics Nankai UniversityTianjin 300071China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100080China

The dynamic generation of spin entanglement between two distant sites in a XY model with 1/r 2 decay long-range couplings was *** to the linear dispersion relationε(k)~|k|of magnons in such a model,a well-located spin state can be dynamically split into two moving entangled local wave packets without changing their ***,when such two wave packets meet at the diametrically opposite site after the fast periodτ=Nπ/J,the initial well-located state is completely *** calculation was performed to confirm the analytical result even if the ring system of sizes N up to several thousands is *** truncation approximation for the coupling strengths was also *** simulation shows that the above conclusions still hold even if the range of the coupling strength is truncated to a relatively short scale compared with the size of the spin system.

关键词： quantum information entanglement spin model

Reliability analysis of aero-engine blades considering nonlinear strength degeneration

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Chinese Journal of Aeronautics 2013年第3期26卷 631-637页

作者： Lin Jiewei Zhang Junhong yang shuo Bi Fengrong State Key Laboratory of Engines Tianjin University

To comprehensively consider the effects of strength degeneration and failure correlation, an improved stress–strength interference （SSI） model is proposed to analyze the reliability of aeroengine blades with the fatigue failure mode. Two types of TC4 alloy experiments are conducted for the study on the damage accumulation law. All the parameters in the nonlinear damage model are obtained by the tension–compression fatigue tests, and the accuracy of the nonlinear damage model is verified by the damage tests. The strength degeneration model is put forward on the basis of the Chaboche nonlinear damage theory and the Griffith fracture criterion, and determined by measuring the fatigue toughness during the tests. From the comparison of two kinds of degeneration models based on the Miner’s linear law and the nonlinear damage model respectively, the nonlinear model has a significant advantage on prediction accuracy especially in the later period of life. A time-dependent SSI reliability model is established. By computing the stress distribution using the finite element （FE） technique, the reliability of a single blade during the whole service life is obtained. Considering the failure correlation of components, a modified reliability model of aero-engine blades with common cause failure （CCF） is presented. It shows a closer and more reasonable process with the actual working condition. The improved reliability model is illustrated to be applied to aero-engine blades well, and the approach purposed in this paper is suitable for any actual machinery component of aero-engine rotor systems.

关键词： Blade Fatigue Nonlinear strength degeneration Reliability Stress–strength interference

Numerical investigation of frictional drag reduction with an air layer concept on the hull of a ship

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Journal of Hydrodynamics 2020年第3期32卷 591-604页

作者： Jun Zhang shuo yang Jing Liu College of Aerospace Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China Energy Research Institute@NTU Nanyang Technological UniversitySingapore

A novel air bubble lubrication method using the winged air induction pipe (WAIP) device is used to reduce the frictional drag of the hull of the ship and hence increase the efficiency of the propulsion system. This bubble lubrication technique utilizes the negative pressure region above the upper surface of the hydrofoil as the ship moves forward to drive air to the skin of the hull. In the present study, the reduction rate of the drag by applying the WAIP device is numerically investigated with the open source toolbox OpenFOAM. The generated air layer and the bubbles are observed. The numerical results indicate that the reduction rate of the drag closely depends on the depth of the submergence of the hydrofoil, the angle of attack of the hydrofoil, and the pressure in the air inlet. It is also proportional to the air flow rate. The underlying physics of the fluid dynamics is explored.

关键词： Winged air induction pipe(WAIP) drag reduction frictional resistance reduction hull of ship OpenFOAM

Olfactory responses of Aphidius gifuensis to odors of host plants and aphid-plant complexes

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Insect Science 2009年第6期16卷 503-510页

作者： Song yang Rui Xu shuo-Yuan yang Rong-Ping Kuang Key Laboratory of Forest Disaster Warning and Control in Yunnan Province Southwest Forestry University Kunming Life Sciences School Yunnan University Kunming Yuxi Tobacco Co. Ltd. Yuxi Yunnan Province China

The olfactory responses ofAphidius gifuensis to odors from two host plants （Nicotiana tabacum and Brassica napus ssp.） and their complexes with different infestation levels of two host aphids （Myzuspersicae and Lipaphis erysimi） were respectively examined in an olfactometer. The results showed that female A. gifuensis did not respond to odors of undamaged or mechanically damaged host plants, but significantly responded to odors of aphid/plant complexes. Moreover, A. gifuensis responded significantly to odors of both M. persicae and L. erysimi/plant complexes when host plants were infested by high levels of aphids, suggesting that quantity of aphid-induced volatiles could be important for attracting A. gifuensis. When tested between aphid/plant complexes, .4. gifuensis did not show its preference for either complex. The efficiency of.4. gifuensis against aphids in open fields potentially could be improved by using its olfactory response to aphid/plant complexes.

关键词： Aphidius gifuensis host location Lipaphis erysimi Myzus persicae olfaction plant odor