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Anti-control and Generalized Synchronization of Chaos for a Kind of n-Dimensional linear Differential System

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Communications in Theoretical Physics 2006年第3期45卷 461-472页

作者： zhang Xiao-dan li Zhi-Ping Applied Science School University of Science and Technology Beijing Beijing 100083 China

This paper introduces the finding of some chaotic attractors in a kind of n-dimensional autonomous hybrid system, which is realized via applying some discontinuous state feedback to a kind of n linear differential system. And a constructive theorem is proposed for generalized synchronization related to the above chaotic hybrid systems. Examples are presented for illustrating the methods.

关键词： chaos discontinuous state feedback generalized synchronization

他克莫司联合度普利尤单抗治疗中、重度特应性皮炎的临床研究

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中国现代医学杂志 2024年第4期34卷 72-77页

作者：田敏熊炜肖玉凤张磊张力丹贵阳市第二人民医院(贵州医科大学附属金阳医院)皮肤科贵州贵阳550081

目的分析他克莫司联合度普利尤单抗治疗中重度特应性皮炎(AD)的效果。方法前瞻性选取2018年2月—2023年2月贵阳市第二人民医院收治的102例中重度AD患者,按随机数字表法分为对照组、研究组,各51例。对照组给予度普利尤单抗,研究组给予... 详细信息

目的分析他克莫司联合度普利尤单抗治疗中重度特应性皮炎(AD)的效果。方法前瞻性选取2018年2月—2023年2月贵阳市第二人民医院收治的102例中重度AD患者,按随机数字表法分为对照组、研究组,各51例。对照组给予度普利尤单抗,研究组给予他克莫司联合度普利尤单抗治疗,持续治疗3个月观察效果。对比两组皮损、瘙痒、临床疗效、炎症相关因子、嗜酸性粒细胞(EOS)、免疫球蛋白E(IgE)及治疗期间不良反应情况。结果研究组治疗前后湿疹面积及严重程度指数评分、特应性皮炎积分指数评分的差值均高于对照组(P 0.05)。结论他克莫司联合度普利尤单抗治疗中重度AD疗效显著,可改善患者症状及炎症相关因子合成,降低EOS、IgE水平,安全可靠。

关键词：特应性皮炎他克莫司度普利尤单抗效果

Interface Engineering of Titanium Nitride Nanotube Composites for Excellent Microwave Absorption at Elevated Temperature

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Nano-Micro Letters 2024年第9期16卷 147-160页

作者： Cuiping li dan li Shuai zhang Long Ma Lei zhang Jingwei zhang Chunhong Gong College of Chemistry and Molecular Sciences Henan UniversityKaifeng 475004People’s Republic of China National and Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials Henan UniversityKaifeng 475004People’s Republic of China

Currently,the microwave absorbers usually suffer dreadful electromagnetic wave absorption(EMWA)performance damping at elevated temperature due to impedance mismatching induced by increased conduction ***,the development of high-performance EMWA materials with good impedance matching and strong loss ability in wide temperature spectrum has emerged as a top ***,due to the high melting point,good electrical conductivity,excellent environmental stability,EM coupling effect,and abundant interfaces of titanium nitride(TiN)nanotubes,they were designed based on the controlling kinetic diffusion procedure and Ostwald ripening *** from boosted heterogeneous interfaces between TiN nanotubes and polydimethylsiloxane(PDMS),enhanced polarization loss relaxations were created,which could not only improve the depletion efficiency of EMWA,but also contribute to the optimized impedance matching at elevated ***,the TiN nanotubes/PDMS composite showed excellent EMWA performances at varied temperature(298-573 K),while achieved an effective absorption bandwidth(EAB)value of 3.23 GHz and a minimum reflection loss(RLmin)value of−44.15 dB at 423 *** study not only clarifies the relationship between dielectric loss capacity(conduction loss and polarization loss)and temperature,but also breaks new ground for EM absorbers in wide temperature spectrum based on interface engineering.

关键词： TiN nanotubes Interface engineering Polarization loss Impedance matching Electromagnetic wave absorption performance

Flexible regulation engineering of titanium nitride nanofibrous membranes for efficient electromagnetic microwave absorption in wide temperature spectrum

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Nano Research 2024年第3期17卷 1666-1675页

作者： Cuiping li Lu zhang Shuai zhang Qiqi Yu dan li Lei zhang Chunhong Gong Jingwei zhang Institute of Functional Polymer Composites College of Chemistry and Molecular SciencesHenan UniversityKaifeng 475004China National&Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials Henan UniversityKaifeng 475004China

Simultaneous development of well impedance matching and strong loss capability has become a mainstream method for achieving outstanding electromagnetic microwave absorption(EMWA)performances over wide temperature ***,it is difficult to pursue both due to the mutual restraint of relationship between impedance matching and loss capability about ***,we propose a flexible regulation engineering of titanium nitride(TiN)nanofibrous membranes(NMs,TNMs),which could be distributed uniformly in the polydimethylsiloxane(PDMS)matrix and contributed to the formation of abundant local conductive networks,generating the local conductive loss and enhancing the loss ability of ***,when the TNMs are used as functional units and dispersed in the matrix,the corresponding composites exhibit an outstanding anti-reflection effect on *** hoped,under the precondition of good impedance matching,local conductive loss and polarization loss together improve the loss capacity at room temperature,and polarization loss can compensate the local conductive loss to acquire effective dielectric response at elevated *** from the reasonably synergistic loss ability caused by flexible regulation engineering,the corresponding composites exhibit the perfect EMWA performances in a wide temperature range from 298 to 573 *** work not only elaborates the ponderable insights of independent membrane in the composition-structure-function connection,but also provides a feasible tactic for resolving coexistence of well impedance matching and strong loss capability issues in wide temperature spectrum.

关键词： flexible titanium nitride nanofibrous membranes local conductive loss dielectric loss electromagnetic microwave absorption wide temperature spectrum

Synthesis of Novel Quaternary Selenide K_2CdSnSe_4

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Chemical Research in Chinese Universities 2010年第4期26卷 514-516页

作者： zhang li-dan HAN Chun-ying FENG Xiu-ling WEI Yong-ge GUO Hong-you College of Sciences Beoing University of Chemical Technology Beijing 100029 P. R. China Department of Chemistry Huaihua Institute Huaihua 418008 P. R. China College of Chemistry and Molecular Engineering Peking University Beoing 100871 P. R. China

A novel quaternary metal selenide, K2CdSnSe4, was synthesized via a molten-salt reaction at 550 ℃. The compound has a one-dimensional structure containing a chain of ∞^1[CdSnSe4]^2- anions separated by K^＋ cations. The crystal belongs to the space group I-4^-2m, with the unit cell parameters a=0.80298（11） nm, b=0.80298（11） nm, c=0.69217（14） nm, α=β=γ=90°. A reflectance spectroscopy study reveals the nature of the semiconductor with an energy gap of 1.7 eV for the compound and it has a strong optical absorotion in a range of 2--5 eV.

关键词： Quatemary metal selenide Solid state synthesis Crystal structure

A phase-field model for simulating the propagation behavior of mixed-mode cracks during the hydraulic fracturing process in fractured reservoirs

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Applied Mathematics and Mechanics(English Edition) 2024年第5期45卷 911-930页

作者： dan zhang liangping YI Zhaozhong YANG Jingqiang zhang Gang CHEN Ruoyu YANG Xiaogang li State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu 610500China State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of TechnologyChengdu 610059China Tarim Oilfield Company PetroChinaBayingolin Mongolian Autonomous Prefecture 841000Xinjiang Uygur Autonomous RegionChina Wuqi Oil Production Plant Shaanxi Yanchang PetroleumXi'an 716000China Exploration Division of PetroChina Southwest Oil and Gasfield Company Chengdu 610041China

A novel phase-field model for the propagation of mixed-mode hydraulic fractures,characterized by the formation of mixed-mode fractures due to the interactions between fluids and solids,is *** this model,the driving force for the phase field consists of both tensile and shear components,with the fluid contribution primarily manifesting in the tension driving *** displacement and pressure are solved simultaneously by an implicit *** numerical solution's iterative format is established by the finite element discretization and Newton-Raphson(NR)iterative *** correctness of the model is verified through the uniaxial compression physical experiments on fluid-pressurized rocks,and the limitations of the hydraulic fracture expansion phase-field model,which only considers mode I fractures,are *** addition,the influence of matrix mode II fracture toughness value,natural fracture mode II toughness value,and fracturing fluid injection rate on the hydraulic fracture propagation in porous media with natural fractures is studied.

关键词： mixed-mode crack hydraulic fracturing poro-elasticity phase-field method(PFM)

A small D-A molecule with highly heat-resisting room temperature phosphorescence for white emission and anti-counterfeiting

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Bronchoalveolar lavage fluid assessment facilitates precision medicine for lung cancer

结构化学 2024年第3期43卷 3-9页

作者： Kun zhang Ni dan dan-dan Ren Ruo-Yu zhang Xiaoyan Lu Ya-Pan Wu li-Lei zhang Hong-Ru Fu Dong-Sheng li College of Materials and Chemical Engineering China Three Gorges UniversityYichang443002PR China College of Chemistry and Chemical Engineering Luoyang Normal UniversityLuoyang471934PR China College of Chemistry and Chemical Engineering Luoyang Normal UniversityLuoyang471934PR China College of Materials and Chemical Engineering China Three Gorges UniversityYichang443002PR China

Achieving high heat-resisting room temperature phosphorescence(RTP)performance and robust white emission from pure small molecules is a meaningful but challenging ***,a simple donor-acceptor(D-A)molecule,9-(1H-benzotriazol-1-ylmethyl)-9H-carbazole(CzBtrz),was *** simple molecule not only exhibits multiple emissions including white light,thermally activated delayed fluorescence(TADF)and ultralong RTP with a lifetime of 988.54 ms at 545 nm,but also shows superhigh heat-resisting phosphorescence property which can maintain stability in a large temperature region from 77 to 350 K(ΔT=273 K),exceeding those of other RTP ***,this molecule shows the time-evolved dynamic *** experimental and theoretical an-alyses from CzBtrz crystal demonstrate that the intramolecular charge transfer(ICT)interaction and molecular stacking play an important role in the generation of ***,this work provides an efficient strategy to design ultrahigh heat-resistant RTP,ultralong RTP and single-phased white-light emitting materials.

关键词： Ultralong RTP TADF D-A molecule Heat-resisting White light

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Cancer Biology & Medicine 2024年第3期21卷 230-251页

作者： Hantao zhang dan Deng Shujun li Jing Ren Wei Huang dan liu Weiya Wang Department of Pathology West China HospitalSichuan UniversityChengdu 610000China West China Biobank West China HospitalSichuan UniversityChengdu 610000China Department of Respiratory and Critical Care Medicine Clinical Research Center for Respiratory DiseaseWest China HospitalSichuan UniversityChengdu 610000China

Lung cancer is the most common and fatal malignant disease worldwide and has the highest mortality rate among tumor-related causes of *** diagnosis and precision medicine can significantly improve the survival rate and prognosis of lung cancer *** present,the clinical diagnosis of lung cancer is challenging due to a lack of effective non-invasive detection methods and biomarkers,and treatment is primarily hindered by drug resistance and high tumor *** biopsy is a method for detecting circulating biomarkers in the blood and other body fluids containing genetic information from primary tumor *** lavage fluid(BALF)is a potential liquid biopsy medium that is rich in a variety of bioactive substances and cell *** contains information on the key characteristics of tumors,including the tumor subtype,gene mutation type,and tumor environment,thus BALF may be used as a diagnostic supplement to lung *** this review,the current research on BALF in the diagnosis,treatment,and prognosis of lung cancer is *** advantages and disadvantages of different components of BALF,including cells,cell-free DNA,extracellular vesicles,and micro RNA are *** particular,the great potential of extracellular vesicles in precision diagnosis and detection of drug-resistant for lung cancer is *** addition,the performance of liquid biopsies with different body fluid sources in lung cancer detection are compared to facilitate more selective studies involving BALF,thereby promoting the application of BALF for precision medicine in lung cancer patients in the future.

关键词： Lung cancer bronchoalveolar lavage fluid extracellular vesicles liquid biopsy precision medicine

Weakly-supervised instance co-segmentation via tensor-based salient co-peak search

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Frontiers of Computer Science 2024年第2期18卷 83-92页

作者： Wuxiu QUAN Yu HU Tingting dan Junyu li Yue zhang Hongmin CAI School of Computer Science Guangdong Polytechnic Normal UniversityGuangzhou 510665China School of Computer Science and Engineering South China University of TechnologyGuangzhou 510006China

Instance co-segmentation aims to segment the co-occurrent instances among two *** task heavily relies on instance-related cues provided by co-peaks,which are generally estimated by exhaustively exploiting all paired candidates in point-to-point ***,such patterns could yield a high number of false-positive co-peaks,resulting in over-segmentation whenever there are mutual *** tackle with this issue,this paper proposes an instance co-segmentation method via tensor-based salient co-peak search(TSCPS-ICS).The proposed method explores high-order correlations via triple-to-triple matching among feature maps to find reliable co-peaks with the help of co-saliency *** proposed method is shown to capture more accurate intra-peaks and inter-peaks among feature maps,reducing the false-positive rate of co-peak *** having accurate co-peaks,one can efficiently infer responses of the targeted *** on four benchmark datasets validate the superior performance of the proposed method.

关键词： weakly-supervised co-segmentation co-peak tensormatching deep network instance segmentation