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数学杂志 2009年第5期29卷 587-594页

作者：钟玉泉攀枝花学院计算机学院

本文研究了可加稳定过程的重点问题.利用自相交局部时计算可加稳定过程多重时的Hausdorff维数,证明了在适当条件下可加稳定过程重点的存在性.

关键词：可加过程局部时自相交局部时重点

奥曲肽联合柴芍承气汤加减对中重度胰腺炎的疗效观察

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现代消化及介入诊疗 2017年第6期22卷 777-780页

作者： zhong yu-quan 钟玉全四川省内江市第一人民医院 641000

目的探讨奥曲肽联合柴芍承气汤加减对中重度急性胰腺炎(AP)患者临床疗效的影响。方法选取112例中重度AP患者为研究对象,随机分成观察组(n=56)和对照组(n=56)。对照组采用单纯静脉注射奥曲肽注射液方案,观察组采用奥曲肽静脉注射联合柴... 详细信息

目的探讨奥曲肽联合柴芍承气汤加减对中重度急性胰腺炎(AP)患者临床疗效的影响。方法选取112例中重度AP患者为研究对象,随机分成观察组(n=56)和对照组(n=56)。对照组采用单纯静脉注射奥曲肽注射液方案,观察组采用奥曲肽静脉注射联合柴芍承气汤鼻饲方案。比较两组患者临床疗效,记录其治疗前后中医症候评分、Ranson评分及Balthazar CT严重程度指数(CTSI)评估情况,对比其腹痛缓解时间、血淀粉酶恢复时间、首次排气时间、首次排便时间及总住院时间。结果 (1)观察组治疗后总有效率为91.1%,显著高于对照组的76.8%(P<0.05);(2)治疗1周后,两组患者中医证候评分、Ranson评分和Balthazar CTSI评分等均较治疗前显著降低(P<0.05),其中观察组降幅大于对照组(P<0.05);(3)观察组腹痛缓解时间、血淀粉酶恢复时间、首次排气时间、首次排便时间及总住院时间等指标均显著低于对照组(P<0.05)。结论将静脉注射奥曲肽联合鼻饲柴芍承气汤加减疗法应用于中重度AP患者的临床治疗中,临床治疗效果确切,对缓解相关症状、促进病情转归等有利。

关键词：奥曲肽柴芍承气汤中重度胰腺炎疗效

Dynamic Regulation of Hydrogen Bonding Networks and Solvation Structures for Synergistic Solar‑Thermal Desalination of Seawater and Catalytic Degradation of Organic Pollutants

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Nano-Micro Letters 2025年第2期17卷 548-565页

作者： Ming‑yuan yu Jing Wu Guang Yin Fan‑Zhen Jiao zhong‑Zhen yu Jin Qu Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical TechnologyBeijing 100029People’s Republic of China State Key Laboratory of Organic‑Inorganic Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029People’s Republic of China

Although solar steam generation strategy is efficient in desalinating seawater,it is still challenging to achieve continuous solar-thermal desalination of seawater and catalytic degradation of organic ***,dynamic regulations of hydrogen bonding networks and solvation structures are realized by designing an asymmetric bilayer membrane consisting of a bacterial cellulose/carbon nanotube/Co_(2)(OH)_(2)CO_(3)nanorod top layer and a bacterial cellulose/Co_(2)(OH)_(2)CO_(3)nanorod(BCH)bottom ***,the hydrogen bonding networks inside the membrane can be tuned by the rich surface–OH groups of the bacterial cellulose and Co_(2)(OH)_(2)CO_(3)as well as the ions and radicals in situ generated during the catalysis ***,both SO_(4)^(2−)and HSO_(5)−can regulate the solvation structure of Na^(+)and be adsorbed more preferentially on the evaporation surface than Cl^(−),thus hindering the de-solvation of the solvated Na^(+)and subsequent nucleation/growth of ***,the heat generated by the solar-thermal energy conversion can accelerate the reaction kinetics and enhance the catalytic degradation *** work provides a flow-bed water purification system with an asymmetric solar-thermal and catalytic membrane for synergistic solar thermal desalination of seawater/brine and catalytic degradation of organic pollutants.

关键词： Solar steam generation Seawater desalination Catalytic degradation Bacterial cellulose Cobalt hydroxycarbonate nanorods

Computer Controlled Polishing of the Off-axis Aspheric Mirrors

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光学精密工程 2001年第5期9卷 467-473页

作者： ZHANG Xue jun,WENG Zhi cheng,ZHANG zhong yu, WANG quan dou,ZHANG Feng (Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130022, China) 中科院长春光学精密机械与物理所吉林长春 1 30 0 2 2

In this paper, the manufacturing and testing procedures to make large off-axis aspherical mirrors are presented. The difficulties in polishing and testing for both circular aperture and rectangular aperture mirrors are previewed, and a possible solution is given. The two mirrors have been polished by means of CCOS, and the final accuracy is 25nm rms for 770mm×210mm rectangular mirror and 20nm rms for φ600mm circular mirror. These results just meet the optical tolerances specified by the designer, and the manufacturing and testing procedures presented here show good ability to make the large off-axis aspherical mirrors.

关键词： asphere computer-controlled polishing optical testing

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高速远程滑坡裹气流态化模型试验研究

岩土力学 2014年第10期35卷 2775-2786页

作者：王玉峰程谦恭张柯宏仲昱全罗忠旭西南交通大学地质工程系成都610031

为分析高速远程滑坡运动过程中碎屑流的裹气流态化特性，以汶川地震触发的谢家店子滑坡为原型，运用自行设计的流化床试验装置，开展了一系列高速远程滑坡碎屑流裹气流态化特性的试验研究。结果表明：（1）对于颗粒粒径变化范围广（0.1... 详细信息

为分析高速远程滑坡运动过程中碎屑流的裹气流态化特性，以汶川地震触发的谢家店子滑坡为原型，运用自行设计的流化床试验装置，开展了一系列高速远程滑坡碎屑流裹气流态化特性的试验研究。结果表明：（1）对于颗粒粒径变化范围广（0.1～7 mm者均有）、颗粒形状极不规则、且底部细颗粒含量高的类滑坡碎屑，其床层压降随着供风量的增加并非呈线性增长趋势，而是表现出明显的气泡控制性特征，随堆积体内部气泡和气垫层位置的不同，堆积体各部位床层压降相差较大；（2）当供风量较低时，碎屑堆积体整体稳定性较好，在堆积体表面仅可见有限气体逸散孔的分布；当供风量达到一定值后，堆积体内部流态化特性增强，可见砂质密云、气孔、纵向脊等一系列与高速远程滑坡实例中相类似现象的出现；（3）对于滑坡类不规则颗粒，其间容易形成架桥现象，增强碎屑流整体稳定性，使气流不易扩散，在堆积体下方形成高压气垫层，产生空气擎托现象。

关键词：高速远程滑坡流化床石英颗粒供风量床层压降流态化

MXene Hybridized Polymer with Enhanced Electromagnetic Energy Harvest for Sensitized Microwave Actuation and Self‑Powered Motion Sensing

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Nano-Micro Letters 2025年第3期17卷 265-279页

作者： yu‑Ze Wang yu‑Chang Wang Ting‑Ting Liu quan‑Liang Zhao Chen‑Sha Li Mao‑Sheng Cao School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081People’s Republic of China School of Materials Science and Engineering Peking UniversityBeijing 100871People’s Republic of China School of Mechanical and Material Engineering North China University of TechnologyBeijing 100144People’s Republic of China Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People’s Republic of ChinaHeilongjiang UniversityHarbin 150080People’s Republic of China

Polymeric microwave actuators combining tissue-like softness with programmablemicrowave-responsive deformation hold great promise for mobile intelligentdevices and bionic soft robots. However, their application is challenged by restricted electromagneticsensitivity and intricate sensing coupling. In this study, a sensitized polymericmicrowave actuator is fabricated by hybridizing a liquid crystal polymer with Ti3C2Tx(MXene). Compared to the initial counterpart, the hybrid polymer exhibits unique spacechargepolarization and interfacial polarization, resulting in significant improvements of230% in the dielectric loss factor and 830% in the apparent efficiency of electromagneticenergy harvest. The sensitized microwave actuation demonstrates as the shortenedresponse time of nearly 10 s, which is merely 13% of that for the initial shape memory polymer. Moreover, the ultra-low content of MXene (upto 0.15 wt%) benefits for maintaining the actuation potential of the hybrid polymer. An innovative self-powered sensing prototype that combinesdriving and piezoelectric polymers is developed, which generates real-time electric potential feedback (open-circuit potential of ~ 3 mV) duringactuation. The polarization-dominant energy conversion mechanism observed in the MXene-polymer hybrid structure furnishes a new approachfor developing efficient electromagnetic dissipative structures and shows potential for advancing polymeric electromagnetic intelligent devices.

关键词： Microwave absorption Electromagnetic response Energy harvest Self-sensing Soft actuator

基于肋骨信息的CT图像肺区疑似粘连肿瘤检测

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计算机工程与应用 2008年第3期44卷 202-204页

作者：喻忠全张建州四川大学计算机学院成都610065

在计算机辅助CT图像肺部肿瘤诊断系统中,当肺区内部存在较大粘连肿瘤时,将导致分割出来的肺区存在较大的缺陷,因而在肺区内部就无法识别粘连肿瘤。利用肋骨轮廓与肺区轮廓形状相似的特性,先用三次立方样条曲线拟合出肋骨的内部轮廓,然... 详细信息

在计算机辅助CT图像肺部肿瘤诊断系统中,当肺区内部存在较大粘连肿瘤时,将导致分割出来的肺区存在较大的缺陷,因而在肺区内部就无法识别粘连肿瘤。利用肋骨轮廓与肺区轮廓形状相似的特性,先用三次立方样条曲线拟合出肋骨的内部轮廓,然后根据肋骨轮廓图与肺区轮廓图找出可疑粘连肿瘤的种子点,最后将肋骨轮廓图与肺区图相结合进行区域生长找到疑似粘连肿瘤。实验结果表明该方法能有效的从CT图像中分割出疑似粘连肿瘤。

关键词： CT图像肺区疑似粘连肿瘤肋骨轮廓样条拟合

Recent Advances in Artificial Sensory Neurons:Biological Fundamentals,Devices,Applications,and Challenges

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Nano-Micro Letters 2025年第3期17卷 168-216页

作者： Shuai zhong Lirou Su Mingkun Xu Desmond Loke Bin yu Yishu Zhang Rong Zhao Guangdong Institute of Intelligence Science and Technology HengqinZhuhai 519031People’s Republic of China College of Integrated Circuits Zhejiang UniversityHangzhou 3112000People’s Republic of China ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 310027People’s Republic of China Department of Science Mathematics and TechnologySingapore University of Technology and DesignSingapore 487372Singapore Department of Precision Instruments Tsinghua UniversityBeijing 100084People’s Republic of China Center for Brain‑Inspired Computing Research Tsinghua UniversityBeijing 100084People’s Republic of China IDG/McGovern Institute for Brain Research Tsinghua UniversityBeijing 100084People’s Republic of China

Spike-based neural networks,which use spikes or action potentialsto represent information,have gained a lot of attention because of their high energyefficiency and low power *** fully leverage its advantages,convertingthe external analog signals to spikes is an essential *** including analog-to-digital converters or ring oscillators,and sensorssuffer from high power and area *** efforts are devoted to constructingartificial sensory neurons based on emerging devices inspired by the biologicalsensory *** can simultaneously perform sensing and spike conversion,overcoming the deficiencies of traditional sensory *** review summarizesand benchmarks the recent progress of artificial sensory *** starts with thepresentation of various mechanisms of biological signal transduction,followed bythe systematic introduction of the emerging devices employed for artificial ***,the implementations with different perceptual capabilitiesare briefly outlined and the key metrics and potential applications are also ***,we highlight the challenges and perspectives for the future development of artificial sensory neurons.

关键词： Artificial intelligence Emerging devices Artificial sensory neurons Spiking neural networks Neuromorphic sensing

Local Time of Additive Levy Process

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Wuhan University Journal of Natural Sciences 2000年第1期5卷 7-12页

作者： zhong yu-quan HU Di-he ( College of Mathematics and Computer Science, Wuhan University, Wuhan 430072, China Department of Base, Panzhihua University, Sichuan 617000, China) Wuhan University College of Mathematics and Computer Science Wuhan China (GRID:grid.49470.3e) (ISNI:***) Panzhihua University Department of Base Sichuan China (GRID:grid.443521.5) Wuhan University College of Mathematics and Computer Science Wuhan China (GRID:grid.49470.3e) (ISNI:***)

We studied the problem of existence of jointly continuous local time for an additive process. Here, 'local time' is understood in the sence of occupation density, and by an additive Levy process we mean a process X = {X(t), t ∈ R^d_+ ) } which has the decomposition X= X_1, X_2 ... X_N. We prove that if the product of it slower index and N is greater than d, then a jointly continuous local time can he obtained via Berman's method.

关键词： additive Levy process local time Levy process isotropic stable process

Multicomponent polymerization of elemental sulfur,difluoromethylene phosphobetaine and aryl silyl ethers toward aromatic poly(O,O′-monothiocarbonate)s

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Science China Chemistry 2025年

作者： Yongjiang yu Rongrong Hu Ben zhong Tang State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates South China University of Technology School of Science and Engineering Shenzhen Institute of Aggregate Science and Technology The Chinese University of Hong Kong AIE Institute

Polythiocarbonates with similar structures to polycarbonates, have emerged as a group of promising sulfur-containing polymers with a range of practical applications, taking advantages of their excellent optical properties, good thermal stability and filmforming ability, and so on. However, the synthesis of polythiocarbonates generally suffered from mixed isomeric structures of repeating units, and hazardous sulfur-containing reagents. In this work, an efficient multicomponent reaction of elemental sulfur,difluoromethylene phosphobetaine（PDFA）, and aryl silyl ethers was designed with the assistance of organic base 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene（MTBD） to produce 12 kinds of O,O′-monothiocarbonate compounds in up to 93% yields,taking advantages of the unique chemical property of difluorocarbene, and the deprotection of silyl group by F-generated from PDFA. Most importantly, the MTBD-assisted multicomponent polymerization of bis（aryl silyl ether）s, elemental sulfur, and PDFA was developed, affording 12 kinds of poly（O,O′-monothiocarbonate）s with well-defined structures, high Mws of up to16900 g/mol and high yields（up to 99%）. These poly（O,O′-monothiocarbonate）s possessed good film-forming properties and thermal stability, high light refractive indices and transmittance. The facile synthesis of these polymonothiocarbonates might pave the way for the development of promising sulfur-containing polymer materials.

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