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Corrigendum to “Oscillation-free source term inversion of atmospheric radionuclide releases with joint model bias corrections and non-smooth competing priors” [J. Hazard. Mater. 440 (2022) 129806]

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Journal of Hazardous Materials 2023年 445卷

作者： Sheng Fang Xinwen Dong Shuhan Zhuang Zhijie Tian Tianfeng Chai Yuhan Xu Yungang Zhao Li Sheng Xuan Ye Wei Xiong Institute of Nuclear and New Energy Technology Collaborative Innovation Centre of Advanced Nuclear Energy Technology Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University Beijing 100084 China China Institute for Radiation Protection Taiyuan 030006 China NOAA Air Resources Laboratory (ARL) NOAA Center for Weather and Climate Prediction 5830 University Research Court College Park MD 20740 USA Cooperative Institute for Climate and Satellites University of Maryland College Park MD 20740 USA Key Laboratory of Beam Technology of Ministry of Education College of Nuclear Science and Technology Beijing Normal University Beijing 100875 China CTBT Beijing National Data Centre and Beijing Radionuclide Laboratory Beijing 100085 China CMA Earth System Modeling and Prediction Center (CEMC) Beijing 100081 China

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Photocatalytic C-H Silylation of Heteroarenes by Using Trialkylhydrosilanes

Photocatalytic C-H Silylation of Heteroarenes by Using Trial...

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中国化学会第二届全国有机自由基化学会议

作者：刘石惠张永强 State Key Laboratory of Bioengineering Reactor Shanghai Key Laboratory of New Drug Design and School of Pharmacy East China University of Science and Technology

芳杂基三烷基硅烷,是一类重要药物骨架和有机合成中间体。三烷基氢硅烷参与的芳杂环碳氢键硅化反应是合成此类结构最有效的方式。本研究,聚焦该类结构的绿色高效合成,将交叉去氢偶联反应技术扩展至碳硅键构建之中,发展了一类可见光催化... 详细信息

芳杂基三烷基硅烷,是一类重要药物骨架和有机合成中间体。三烷基氢硅烷参与的芳杂环碳氢键硅化反应是合成此类结构最有效的方式。本研究,聚焦该类结构的绿色高效合成,将交叉去氢偶联反应技术扩展至碳硅键构建之中,发展了一类可见光催化的芳杂环碳氢键硅化反应。该方法可有效兼容大体积三烷基氢硅烷;缺电子芳杂环,富电子芳杂环,以及氰基取代芳环都可有效参与反应;尤其需要指出的是,以三异丙基硅硫醇替代过氧化物,反应同样可以有效进行,显示出更优的区域选择性。拓展研究表明,这些含大位阻三烷基硅基的芳杂环,对各种基于碳硅键断裂的偶联反应显示出较高反应活性,为复杂生物活性分子高效合成和快速修饰提供了简洁高效的反应工具。

关键词：碳氢键偶联反应 Photocatalytic C-H Silylation of Heteroarenes by Using Trialkylhydrosilanes

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Synthesis of 2-Quinolinones via a Hypervalent Iodine(Ⅲ)-Mediated Intramolecular Decarboxylative Heck-Type Reaction at Room Temperature

Synthesis of 2-Quinolinones via a Hypervalent Iodine(Ⅲ)-Med...

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中国化学会第二届全国有机自由基化学会议

作者：樊化强张永强王卫 State Key Laboratory of Bioengineering Reactor Shanghai Key Laboratory of New Drug Design and School of Pharmacy East China University of Science and Technology

喹啉酮是一类重要的含氮杂环,表现出广泛的生物活性。邻烯基苯胺及其衍生物的内酰胺化是合成此类结构最为有效的方式之一。然而传统方法通常以剧毒的光气制品,一氧化碳或二氧化碳为羰基源,需要在高温条件下使用昂贵而具有毒性的过渡金... 详细信息

喹啉酮是一类重要的含氮杂环,表现出广泛的生物活性。邻烯基苯胺及其衍生物的内酰胺化是合成此类结构最为有效的方式之一。然而传统方法通常以剧毒的光气制品,一氧化碳或二氧化碳为羰基源,需要在高温条件下使用昂贵而具有毒性的过渡金属或强碱介导反应的进行,存在反应条件苛刻,官能团兼容性差的缺点,不利于进一步工业放大合成。鉴于此,以邻烯基苯草氨酸为原料,我们发展了一类三价碘介导的分子内脱羧Heck反应,通过内酰胺化的方式,在无金属条件下,实现了多样性喹啉-2(1H)-酮结构的高效构建。该反应体系绿色温和,以易于制备的草胺酸为羰基源,表现出优异的化学选择性和官能团兼容性。通过进一步研究,我们初步阐明了环张力诱导碘氧键断裂的自由基脱羧机制,为设计新的三价碘介导自由基脱羧偶联反应指明了方向。

关键词：官能团 Mediated Intramolecular Decarboxylative Heck-Type Reaction at Room Temperature Synthesis of 2-Quinolinones via a Hypervalent Iodine

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Unified Rendering Array Driver Runtime Optimization for Graphic Application 6

Unified Rendering Array Driver Runtime Optimization for Grap...

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6th Annual 2018 International Conference on Geo-Spatial Knowledge and Intelligence, GSKI 2018

作者： Ma, Chengcheng Tian, Ze Liu, Honghong Nie, Zhao China Aeronautical Computing Research Institute China Aviation Key Laboratory of Science and Technology on Integrated Circuit and Micro-System Design P.O. Box 710068 China Xiangteng Microelectronics Technology Co. LTD P.O. Box 710068 China

As the core of GPU processing, the performance of Unified rendering array is directly affected by the shader driver. On the basis of research the structure of Unified rendering array processing, this paper proposes a runtime Unified rendering array driver optimization method for graphical application, can according to different graphics application scenario runtime to generate optimized Unified rendering array driver, testing on graphics processors FPGA verification environment, driven by the runtime optimization compared with the traditional full function driver, performance increased by 55% - 270%. © Published under licence by IOP Publishing Ltd.

关键词： Array processing

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Synergistic biotechnological co-processing of wastewater and external sludge for partial energy autarky

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Chemical Engineering Journal 2025年

作者： Fangzhai Zhang Hongying Lu Shouyou Gao Dan Qu Yujing Zhang Ziyi Du Jiahui Wang Yongzhen Peng National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology Engineering Research Center of Beijing Beijing University of Technology Beijing 100124 China Beijing General Municipal Engineering Design & Research Institute Beijing 100082 China Beijing Key Laboratory for Source Control Technology of Water Pollution College of Environmental Science and Engineering Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China Engineering Research Center for Water Pollution Source Control & Eco-remediation College of Environmental Science and Engineering Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China

Harnessing bioenergy from waste activated sludge (WAS) is crucial for sustainable development in wastewater treatment field; however, traditional anaerobic digestion with pretreatment is energy-intensive. We developed a novel, partially energy-autonomous biotechnology that synergistically co-processes wastewater and WAS using a self-generated biocatalyst (ppm-level FNA) without any external energy or chemical input. This self-sustained FNA-centric system simultaneously enables rapid organic resource recovery, sludge disintegration, and denitrification within only 20.5 h, representing a major advancement over traditional multi-day anaerobic processes. The multifunctional process recovered 3264.7 mg/L of net organics, reduced sludge by 7.92 kg/m 3 ·d, and removed nitrogen at a rate of 0.71 kg N/m 3 ·d with 92.5 % efficiency. A 58.4 % decrease in cell membrane thickness (from 10.42 nm to 4.7 nm) and significant perforation were observed under biocatalyst treatment. Comprehensive analysis, including cell surface morphology, microorganism survival status, organic resource dynamic, and proteins spatial distribution, underscore organic resource recovery from sludge relying on multifaceted biocatalytic and stress effects. Consequently, even after biocatalyst completed consumption, organic release rate remained constant at 87.7–122 mg COD/h. Furthermore, unlike the detrimental effects on biodiversity, specific microbial communities were selectively enriched, remarkable enhancing in glycolysis, fatty acid synthesis, and denitrification functionalities. Results demonstrate feasibility of partial energy self-sufficiency, contributing to achievement of carbon neutrality in wastewater and WAS management.

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Research on Stress-Relaxation Property of Different Layers ment under Compression 16

Research on Stress-Relaxation Property of Different Layers m...

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16th IEEE International Conference on Mechatronics and Automation, ICMA 2019

作者： Zhou, Jinlai Song, Yang Shi, Xue Xu, Chenguang Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control Tianjin University of Technology School of Mechanical Engineering Tianjin University of Technology Tianjin300384 China National Demonstration Center for Experimental Mechanical and Electrical Engineering Education Tianjin University of Technology China Periodontitis Department Tianjin Stomatological Hospital Tianjin300041 China

ISBN: (纸本)9781728116983

As a connective tissue connecting teeth and alveolar bone, periodontal ligament (PDL) has the mechanical properties of nonlinearity, viscoelasticity, anisotropy. In this paper, the pig mandibular central incisors were taken as subjects, a loading machine(CARE-MI00) was used to perform compression tests and the PDL stress-relaxation characteristics under different strain conditions were obtained. The stress-time curves and the relaxation modulus curves were obtained. The three-parameters Zener model and five-parameter generalized Maxwell model proposed by the author were used to fit the data. The experimental results show that the elastic modulus of PDL decreases gradually in the apex(ranges from 2.64 to 3.06 MPa), cervical margin(ranges from 1.44 to 1.76 MPa) and midroot (ranges from 1.03 to 1. 06MPa). Zener model has a relatively high fitting degree, and the squared correction coefficient is about 0.98, however, the adjusted R square of the five-parameter model was above 0.99. Compared with the Zener model, the five-parameter model can better reflect the sudden drop of relaxation modulus at the initial stage, which is more suitable for describing stress-relaxation in viscoelastic behavior of PDL. The advantage of this paper is to compare the descriptive ability of three-parameter and five-parameter generalized Maxwell equation to the mechanical properties of PDL and to provide an effective procedure for the preparation of PDL specimens. © 2019 IEEE.

关键词： Elastic moduli

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Prediction of monolayered ferromagnetic CrMnI6 as an intrinsic high-temperature quantum anomalous Hall system

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Physical Review B 2020年第11期102卷 115413-115413页

作者： Huisheng Zhang Wenjia Yang Ping Cui Xiaohong Xu Zhenyu Zhang Key Laboratory of Magnetic Molecules and Magnetic Information Materials of the Ministry of Education and Research Institute of Materials Science Shanxi Normal University Linfen 041004 China International Center for Quantum Design of Functional Materials (ICQD) Hefei National Laboratory for Physical Sciences at Microscale and CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of China Hefei Anhui 230026 China Key Laboratory of Strongly-Coupled Quantum Matter Physics Chinese Academy of Sciences School of Physical Sciences University of Science and Technology of China Hefei Anhui 230026 China

Quantized Hall conductance without an external magnetic field, known as the quantum anomalous Hall effect (QAHE), may have important applications in dissipationless spintronics, yet to date, it has only been realized in magnetically doped topological insulators and at very low temperatures. Here we design a physically realistic system for realizing QAHE by expanding the recently discovered two-dimensional ferromagnetic insulators as a new class of candidate materials. Based on first-principles calculations, we predict that a CrMnI6 monolayer is energetically stable and can be readily exfoliated. This system is further shown to be a ferromagnetic insulator, with a transition temperature of ∼87K, higher than that of CrI3. Most strikingly, such a monolayer is characterized as an intrinsic QAHE system with a high Chern number of C = 2, and the underlying mechanism for the nontrivial topology is attributed to the two inequivalent subset sites of the Cr and Mn atoms. The present study thus provides an ideal platform for realizing high-temperature QAHE beyond the prevailing materials class of magnetically doped topological insulators.

关键词： First-principles calculations Topological materials 2-dimensional systems Ferromagnets Density functional theory Wannier function methods k dot p method

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Optimization of Manufacturing Process and Experimental Verification of Vulnerable Part in reactor

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IOP Conference Series: Earth and Environmental science 2020年第1期585卷

作者： Yang Bo Science and Technology on Reactor System Design Technology Laboratory Nuclear Power Institution of China Sichuan ChengDu 610041

The technical requirements of the control rod driving mechanism of the third generation PWR nuclear power plant are higher. The latch parts are designed with double tooth structure and welded on the wear-resistant surface by cobalt-based alloy surfacing. According to the structural characteristics and manufacturing process difficulties, a special welding device is developed. According to the test and finite element simulation, the related process parameters are optimized. The trial production of the parts was completed, and the parts were tested by metallography, liquid permeation test, hardness test and thermal life test. The results show that the latch parts have high hardness and wear resistance, and meet the requirements of the driving mechanism operation life of the third generation PWR nuclear power plant.

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Gradient piezoelectric composites for ultrasonic transducer design and imaging applications

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Journal of Materiomics 2025年第6期11卷

作者： Chenxue Hou Zhaoxi Li Chunlong Fei Qibo Lin Xiaofei Luo Xiongwei Wei Yiheng Yang Qi Lu Yi Quan Guangzhi Dong Zeyu Chen Xiaozhou Lü Weimin Bao Yintang Yang Shaanxi Provincial Key Laboratory of Integrated Circuit and System Integration Faculty of Integrated Circuit Xidian University Xi'an 710071 China The State Key Laboratory of Analog and Mixed-Signal VLSl Institute of Microelectronics University of Macau Macao 999078 China School of Aerospace Science and Technology Xidian University Xi'an 710071 China State Key Laboratory of Precision Manufacturing for Extreme Service Performance College of Mechanical and Electrical Engineering Central South University Changsha 410083 China College of Automotive and Mechanical Engineering Changsha University of Science and Technology Changsha 410114 China Hunan Province University Key Laboratory of Intelligent Testing and Control Technology for Engineering Equipment Changsha 410114 China School of Advanced Materials and Nanotechnology Xidian University Xi'an 710126 China Furong Laboratory (Precision Medicine) Changsha 410008 China National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology Xiangya Hospital Central South University Changsha 410008 China Hunan Engineering Research Center of Skin Health and Disease Xiangya Hospital Central South University Changsha 410008 China

Ultrasonic imaging technology has advanced rapidly, the escalating demand for imaging quality has driven the continuous development of ultrasonic transducers featuring high-performance. Among them, the crucial factors constraining the further enhancement of imaging quality are the frequency of the device and the intensity of the echo signal. Piezoelectric composites have become a hotspot for ultrasonic transducers and imaging applications due to their excellent properties. However, due to the limitations of the accuracy of the cutting process, the development of piezoelectric/polymer composites is often undermined by undesirable pseudo-vibrations, especially in high-frequency applications, which will significantly reduce energy conversion efficiency. In this study, a novel design method of 1–3 piezoelectric composites with gradient nanoparticle doped polymer is proposed to eliminate the undesired lateral vibrations. Based on the optimized composites, a high-performance composite ultrasonic transducer with a center frequency of 8.51 MHz is prepared. Compared with the traditional composite transducer, the optimized transducer improves the echo voltage amplitude significantly, reaching nearly 3 times. The above advantages are further verified in high-quality ultrasound and photoacoustic imaging. The optimization method has valuable guidance for the design of high-frequency composite transducers, which have great potential in ultrasonic and photoacoustic imaging applications.

关键词： Piezoelectric composites Ultrasonic transducer Imaging applications Lateral vibration Finite element analysis

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Coordinate Control,Motion Optimization and Sea Experiment of a Fleet of Petrel-Ⅱ Gliders

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Chinese Journal of Mechanical Engineering 2018年第1期31卷 127-141页

作者： Dong-Yang Xue Zhi-Liang Wu Yan-Hui Wang Shu-Xin Wang Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education Tianjin University School of Mechanical Engineering Tianjin University The Joint Laboratory of Ocean Observing and Detecting Qingdao National Laboratory for Marine Science and Technology

The formation of hybrid underwater gliders has advantages in sustained ocean observation with high resolution and more adaptation for complicated ocean tasks. However, the current work mostly focused on the traditional gliders and *** research on control strategy and energy consumption minimization for the hybrid gliders is necessary both in methodology and experiment. A multi-layer coordinate control strategy is developed for the fleet of hybrid underwater gliders to control the gliders’ motion and formation geometry with optimized energy consumption. The inner layer integrated in the onboard controller and the outer layer integrated in the ground control center or the deck controller are designed. A coordinate control model is proposed based on multibody theory through adoption of artificial potential fields. Considering the existence of ocean flow, a hybrid motion energy consumption model is constructed and an optimization method is designed to obtain the heading angle, net buoyancy, gliding angle and the rotate speed of screw propeller to minimize the motion energy with consideration of the ocean flow. The feasibility of the coordinate control system and motion optimization method has been verified both by simulation and sea trials. Simulation results show the regularity of energy consumption with the control variables. The fleet of three Petrel-Ⅱ gliders developed by Tianjin University is deployed in the South China Sea. The trajectory error of each glider is less than 2.5 km, the formation shape error between each glider is less than 2 km, and the difference between actual energy consumption and the simulated energy consumption is less than 24% actual energy. The results of simulation and the sea trial prove the feasibility of the proposed coordinate control strategy and energy optimization method. In conclusion, a coordinate control system and a motion optimization method is studied, which can be used for reference in theoretical research and practical f

关键词： Underwater glider Petrel-Ⅱ Coordinate control Path planning Artificial potential fields(APFs) Energy consumption

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