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Optoelectronics Letters 2025年第3期21卷 188-192页

作者： YE Zhuang LIU Ruyu SUN Bo school of Information Engineering Chengdu Aviation Vocational and Technical College school of Computer Science and Engineering Hangzhou Normal University Quanzhou Institute of Equipment Manufacturing Haixi Institutes Chinese Academy of Sciences

In the field of optoelectronics, certain types of data may be difficult to accurately annotate, such as high-resolution optoelectronic imaging or imaging in certain special spectral ranges. Weakly supervised learning can provide a more reliable approach in these situations. Current popular approaches mainly adopt the classification-based class activation maps (CAM) as initial pseudo labels to solve the task.

关键词： A

On load dependence of detachment rate of kinesin motor

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Chinese Physics B 2025年第1期34卷 498-505页

作者： Xiao-Xuan Shi Yao Wang Yu-Ru Liu Ping Xie school of Pharmaceutical Engineering Chongqing Chemical Industry Vocational CollegeChongqing 401220China Laboratory of Soft Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China

Kinesin is an archetypal microtubule-based molecular motor that can generate force to transport cargo in cells. The load dependence of the detachment rate is an important factor of the kinesin motor, the determination of which is critically related to the chemomechanical coupling mechanism of the motor. Here, we use three models for the load dependence of the detachment rate of the kinesin motor to study theoretically and numerically the maximal force generated and microtubuleattachment duration of the motor. By comparing the theoretical and numerical results with the available experimental data,we show that only one model can explain well the available experimental data, indicating that only this model can be applicable to the kinesin motor.

关键词： kinesin detachment rate generated force chemomechanical coupling mechanism optical trapping

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A nitrogen-rich halogen-bonded organic framework (XOF) for efficient iodine capture and security printing

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Science China Chemistry 2025年第2期68卷 631-640页

作者： Qi Zhao Penghao Sun Guanfei Gong Yi Chen Lingzhi Luo Yongfei Yin Chunsheng Li Jike Wang Lu Wang Shigui Chen The Institute for Advanced Studies Wuhan UniversityWuhan 430072China Ningxia vocational technical College of Industry and Commerce Yinchuan 750100China Key Laboratory of Advanced Electrode Materials for Novel Solar Cells for Petroleum and Chemical Industry of China School of Chemistry and Life SciencesSuzhou University of Science and TechnologySuzhou 215009China

The escalating utilization of nuclear energy and nuclear medicine raises concerns about the environmental impact of radioactive iodine,necessitating the development of effective iodine adsorbents,especially under a real-world scenario with extremely low iodine concentration and elevated ***,we have presented the construction of a nitrogen-abundant two-dimensional(2D)halogen-bonded organic framework,XOF-TNP,characterized by exceptional crystallinity,thermal stability,and nitrogen-rich ***-TNP exhibits strong binding to iodine,thanks to the fact that iodine can be pre-enriched into the framework through N…I *** nitrogen-rich framework and I^(+) synergistically have extremely high binding force to iodine,enabling the rapid and efficient capture of iodine in both vapor and solution phases,with significant *** flow-through adsorption experiments using an XOF-TNP-packed column achieve 99%iodine removal from hexane and aqueous solutions,surpassing traditional activated *** highlights its potential for environmental *** enables the development of a novel rewritable security paper,utilizing its iodine adsorption properties to encrypt and decrypt QR *** research expands the application scope of halogen-bonded organic frameworks,providing insights into the design of materials for environmental remediation and security applications.

关键词： [N…I+…N]halogen bond halogen-bonded organic framework iodine capture security printing supramolecular assembly

Elastohydrodynamic Lubrication Performance of Curvilinear Cylindrical Gears Based on Finite Element Method

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Computer Modeling in Engineering & sciences 2025年第2期142卷 1585-1609页

作者： Xuegang Zhang Yingjie Dong Xian Wei Ruiqi Wang Qi Zhang school of Intelligent Manufacturing Panzhihua UniversityPanzhihua617000China Panzhihua Hangyu New Material Technology Co. Ltd.Panzhihua617000China school of Intelligent Manufacturing Chengdu Industrial Vocational Technical CollegeChengdu610218China

The fixed-setting face-milled curvilinear cylindrical gear features teeth that are arc-shaped along the longitudinal *** researchers hypothesize that this arc-tooth may enhance the lubrication conditions of the *** study focuses on this type of gear,employing both finite element analysis(FEA)and analytical methods to determine the input parameters required for elastohydrodynamic lubrication(EHL)*** effects of assembly errors,tooth surface modifications,load,and face-milling cutter radius on the lubrication performance of these gears are systematically *** finite element model(FEM)of the gear pair is utilized to calculate the coordinates of contact points on the tooth surface and the corresponding contact pressures at the tooth surface nodes throughout a meshing ***,the normal load on specific gear teeth is determined using a gradient-based *** speed,slip-to-roll ratio,and effective radius near the contact points on the tooth surface are derived through analytical *** data obtained from FEA serve as input parameters for EHL *** lubrication performance of the curvilinear cylindrical gear is evaluated through example *** findings indicate that using FEA to provide input parameters for EHL simulations can reveal the occurrence of edge contact phenomena during gear meshing,allowing for a more accurate representation of the gear’s lubrication *** lubrication performance of the curvilinear cylindrical gear is shown to be independent of the face-milling cutter radius but is significantly influenced by the size of the contact pattern on the tooth *** gears with larger contact patterns demonstrate superior lubrication performance.

关键词： FEM EHL curvilinear cylindrical gear lubrication performance analysis

Selective activation of dioxygen to singlet oxygen over La-Si co-doped TiO_(2)microspheres for photocatalytic degradation of formaldehyde

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Journal of Environmental sciences 2025年第5期151卷 594-607页

作者： Shuaitao Li Haodi Liu Xun Hu Yanfen Fang Xiaofeng Cao Qifeng Chen school of Materials Science&Engineering University of JinanJinan 250022China College of Biological and Pharmaceutical sciences China Three Gorges UniversityYichang 443002China technical Institute of Physics and Chemistry Chinese Academy of SciencesBeijing 100190China

Volatile Organic Compounds(VOCs)are highly harmful to human beings and other organisms,and thus the elimination of VOCs is extremely ***,La-Si co-doped TiO_(2)microsphere photocatalysts,which were prepared by a hydrothermal method,exhibited high photocatalytic activity in the decomposition of formaldehyde compared with TiO_(2).The improved activity can be attributed to the promoted separation efficiency and density of the charge carriers,as verified by the electrochemical results in combination with density functional theory *** addition,the Si dopant changed the microstructure and surface acidity,while the addition of La promoted the separation efficiency of charge *** interestingly,it was found that singlet oxygen was the key species in the activation of molecular dioxygen,and it played a pivotal role in the photocatalytic decomposition of *** work provides a novel strategy for the selective activation of dioxygen for use in the decomposition of formaldehyde.

关键词： Dioxygen molecular activation La-Si co-doped TiO_(2)microspheres Formaldehyde degradation Photocatalysis

Glial cell line-derived neurotrophic factor improves impaired colonic motility in experimental colitis mice through connexin 43

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World Journal of Gastroenterology 2025年第8期31卷 82-95页

作者： Wei Yang Rui Liu Feng Xu Department of Gastroenterology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina Medical school Xiangyang Vocational and Technical CollegeXiangyang 441021Hubei ProvinceChina

BACKGROUND Colonic motility dysfunction is a common symptom of ulcerative colitis(UC),significantly affecting patients’quality of *** suggests that glial cell line-derived neurotrophic factor(GDNF)plays a role in restoring colonic *** To investigate whether GDNF enhances aberrant colonic motility in mice with experimental colitis via connexin 43(Cx43).METHODS An experimental colitis model was induced in male C57BL/6 mice using dextran sodium sulfate(DSS).The measurement of colonic transit time was conducted,and colon tissues were evaluated through transmission electron microscopy and hematoxylin and eosin *** mice were treated with exogenous GDNF and Gap 19,a selective Cx43 *** Cx43 and GDNF levels were detected via immunofluorescence,immunohistochemistry,and real-time polymerase chain *** levels of inflammatory markers,including interleukin-1β,tumor necrosis factor-α,interleukin-6,and C-reactive protein,were quantified using enzyme-linked immunosorbent *** Experimental colitis was successfully induced using DSS,and the findings exhibited that the colonic transit time was significantly delayed in colitis mice relative to the UC group(P<0.01).GDNF treatment improved colonic transit time and alleviated intestinal inflammation in DSS-induced colitis mice(P<0.05).In the UC+Gap19+GDNF group,colitis symptoms,colonic transit time,and inflammatory marker levels remained comparable to those in the UC group,indicating that the therapeutic effects of GDNF in UC mice were blocked by Gap *** GDNF improves colonic motility in mice with experimental colitis through a partially Cx43-mediated *** holds promise as a therapeutic option for improving colonic motility in patients with colitis.

关键词： Glial cell line-derived neurotrophic factor Ulcerative colitis Colonic motility Connexin 43 Dextran sodium sulfate model

Reversible phase transition poly(benzyl methacrylate)/ionic liquid electrolytes for effective overheating protection in lithium batteries

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Journal of Energy Chemistry 2025年第2期101卷 76-86页

作者： Qian Yu Wei Sun Jialing Zhu Haoxiang Li Shuai Wang Longqing Huang Qian Qiu Haoran Tian He Miao Fu Wang Chunfei Zhang Jinliang Yuan Lan Xia Ningbo Innovation Team on New Energies and Marine Applications Faculty of Maritime and Transportation Ningbo University technical University of Munich TUM School of Natural Sciences Department of Physics Chair for Functional Materials

Battery safety is influenced by various factors,with thermal runaway being one of the most significant *** most studies have concentrated on developing one-time,self-activating mechanism for thermal protection,such as temperature-responsive electrodes,and thermal-shutdown separators,these methods only provide irreversible ***,reversible temperature-sensitive electrolytes have emerged as promising alternatives,offering both thermo-reversibility and self-protective ***,further research is crucial to fully understand these thermal-shutdown *** this study,we propose lower critical solution temperature(LCST) phase behavior poly(benzyl methacrylate)/imidazolium-based ionic liquid mixtures to prepare temperature-sensitive electrolytes that provide reversible thermal shutdown protection of *** electrolyte features an appropriate protection temperature(～105℃) and responds quickly within a 1 min at 105℃,causing cells to hardly discharge as the voltage suddenly drops to 3.38 V,and providing efficient thermal shutdown protection within 30 *** cooling back to room temperature,the battery regains its original ***,the electrolyte exhibits excellent cycling stability with the capacity retention of the battery is 91.6% after 500 *** work provides a viable solution for preventing batteries from thermal runaway triggered by overheating.

关键词： Ionic liquid Lithium-ion battery Lower critical solution temperature Overheating Safety Thermal runaway

Advances in phytochemistry, ananlysis methods and pharmacology of Eleutherococcus trifoliatus:A promising medicinal and edible resource with development value

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Chinese Herbal Medicines 2025年第1期17卷 19-30页

作者： Maofang Lu Bin Wang Ling Dai Jian Wu Jiao Luo Changsoo Yook Xiangqian Liu school of Pharmacy Hunan University of Chinese Medicine school of Pharmacy Hunan Vocational College of Science and Technology Instrumental Analysis Center Shanghai Institute of Organic Chemistry Chinese Academy of Sciences school of Pharmacy Kyung Hee University

Eleutherococcus trifoliatus(Araliaceae) is called Baile or Lecai in *** is a medicinal and edible plant widely used in folk *** a TCM,the dried herb of this species can remove damp heat and detoxicity,cure rheumatism,remove blood stasis,relieve pain,and alleviate cough and asthma *** chemical compounds have been reported including diterpenoids,triterpenoids,phenylpropanoids,flavonoids,lignans,caffeoyl quinic acids,steroids,essential oils,etc.,in which flavonoids,saponins,and caffeoyl quinic acids are the most bioactive *** vitro and in vivo pharmacological experiments demonstrated that *** has anti-inflammatory,hypoglycemic,anticancer,antioxidant,antibacterial,anti-hyperalgesic,anti-fatigue,analgesic,and hemostatic *** we reviewed *** in phytochemistry,analysis methods,and pharmacology.

关键词： Acanthopanax Miq. analysis methods anti-inflammatory Eleutherococcus trifoliatus (L.) S. Y. Hu pharmacology phytochemistry toxicity

Effect of solid waste materials on properties of magnesium matrix composites-A systematic review

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Journal of Magnesium and Alloys 2022年第10期10卷 2673-2698页

作者： Fatih Aydin tobb technical sciences vocational school Karabuk UniversityTurkey

The need for light and high specific strength materials in many fields such as automotive and aerospace is increasing day by ***(Mg)-based materials have become attractive for many industries thanks to their high specific strength, good vibration damping ability, and recyclability. However, Mg’s low strength and wear resistance are important barriers limiting its industrial use. Researchers are developing Mg matrix composites using various reinforcements and expanding the use of Mg-based materials. The conventional reinforcements are Al2O3, SiC, B4C, TiB2, CNT, and GNPs for the production of Mg matrix composites. Researchers have been trying to reduce the cost of Mg matrix composites in recent years by using cheaper and environmentally friendly reinforcements. These reinforcements are solid wastes such as eggshell, fly ash, red mud, and waste glass, and their use in composite systems is becoming more common day by day. This review focuses on the Mg matrix composites reinforced with solid waste particles and the changes in wear, mechanical, corrosion, and thermal properties with the addition of these reinforcements.

关键词： Mg matrix composites Solid waste reinforcements Wear Corrosion Mechanical properties

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Fabrication and Mechano-sensing Characteristics of Bending Polypyrrole Actuator

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 240-245页

作者： CHEN Jinyou HU Wei school of Automotive Engineering Hunan Financial&Industrial Vocational-technical CollegeHengyang 421002China College of Mechanical and Electrical Engineering Hunan Agricultural UniversityChangsha 410128China

To prepare a conductive polymer actuator with decent performance,a self-built experimental platform for the preparation of polypyrrole film is *** of the essential goals is to examine the mechanical characteristics of the actuator in the presence of various combinations of process parameters,combined with the orthogonal test method of"four factors and three levels".The bending and sensing characteristics of actuators of various sizes are methodically examined using a self-made bending polypyrrole *** functional relationship between the bending displacement and the output voltage signal is established by studying the characteristics of the actuator sensor subjected to various degrees of *** experimental results reveal that the bending displacement of the actuator tip almost exhibits a linear variation as a function of length and *** the voltage reaches 0.8 V,the bending speed of the actuator tends to be ***,the mechanical properties of the self-assembled polypyrrole actuator are verified by the design and fabrication of the microgripper.

关键词： conductive polymer polypyrrole mechanical characteristics actuators sensing characteristics

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