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Chinese Chemical Letters 2025年第1期36卷 344-348页

作者： Quanyou Guo Yue Yang Tingting Hu Hongqi Chu Lijun liao Xuepeng Wang Zhenzi Li Liping Guo Wei Zhou Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Chemical EngineeringQilu University of Technology(Shandong Academy of Sciences)Ji’nan 250353China

The high conductivity of electrocatalyst can eliminate the Schottky energy barrier at the interface of heterogeneous phases during an electrocatalytic reaction and accelerate the rapid electron transfer to the catalytic active ***,the electronic conductivity is a vital parameter for oxygen reduction reaction(ORR).Covalent triazine frameworks(CTFs)have shown great potential application as electrocatalysts in ORR with a merit of the diverse building ***,the intrinsic low conductivity and high impedance of CTFs could be significant setbacks in electrocatalytic ***,CTFs were constructed by introducing F and N co-modification for efficient 2e^(-)*** with the pristine CTF,the co-presence of F,N could increase the conductivity obviously by *** a result,F-N-CTF exhibits enhanced catalytic performance of H_(2)O_(2)generation and selectivity towards reaction *** work reveals the importance of conductivity optimization for CTFs and provides guidance for designing high conductivity non-metallic organic semiconductor catalysts for 2e^(-)ORR.

关键词： Covalent triazine frameworks Conductivity Co-modification Electrocatalysis Oxygen reduction reaction

Novel multi-waypoint planning methods based on intermediate state optimization

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Science China Technological Sciences 2025年第3期68卷 183-195页

作者： Xinyu QIN Guangbao ZHAO Zixuan liao Chao LIU Zhenhua XIONG State Key Laboratory of Mechanical System and Vibration School of Mechanical Engineering Shanghai Jiao Tong University

Multi-waypoint planning is essential for manipulators to execute complex tasks efficiently. It requires the manipulator to swiftly traverse designated waypoints while adhering to all the kinematic constraints. However, previous research has not fully exploited the kinematic capabilities of manipulators and has overlooked collision considerations. To address these problems, this paper presents two novel methods called recursive intermediate state optimization(RISO) and overall intermediate state optimization(OISO). RISO decomposes the multi-waypoint planning problem into a sequence of one-waypoint planning tasks, employing a recursive approach to generate feasible solutions efficiently. OISO utilizes an improved whale optimization algorithm(WOA), incorporating multiple iterative processes to perform secondary optimization in high-dimensional space based on the initial value, yielding better solutions. The proposed methods have been validated on a six-degree-of-freedom manipulator platform and compared with several traditional algorithms, as well as the state-of-the-art algorithm, Ruckig. The results show that RISO outperforms Ruckig in scenarios where computation time is critical, while OISO is better suited for scenarios where trajectory quality is prioritized over time. Furthermore, the proposed methods can also handle collisions, ensuring the generation of collision-free trajectories.

关键词： multi-waypoint planning intermediate state optimization aerial photography task

Influence of the Scandinavian Pattern on Summer Extreme Precipitation over the Eastern Slopes of the Tibetan Plateau

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Advances in Atmospheric Sciences 2025年第03期 438-452页

作者： Quanliang CHEN Ziqi ZHANG Yang LI Yujing liao Dandan DONG Plateau Atmospheric and Environment Key Laboratory of Sichuan Province School of Atmospheric ScienceChengdu University of Information Technology Shaoxing Yuecheng Meteorological Bureau Zhejiang Institute of Meteorological Sciences

The Scandinavian(SCA) pattern is an important climate signal in regulating the variability of summer extreme precipitation(SEP) over the eastern slopes of the Tibetan Plateau(ESTP). There is a strong negative correlation between the SCA pattern and SEP over the ESTP, with a correlation coefficient of -0.57. Moisture budget analysis showed that the dynamic component anomalies of both the zonal and vertical moisture advection induced by the SCA pattern play the dominant roles in extreme precipitation variability over the ESTP. These anomalies are solely linked to variations in zonal wind and vertical velocity. The anomalies of the SCA pattern propagate downstream through Rossby waves, leading to the formation of cyclonic circulations over northern East Asia and the Iranian Plateau. The westerlies on the southern side of these cyclonic circulations play a crucial role in influencing the development of significant anomalous westerlies over the ESTP. The anomalous westerlies bring climatologically moist air from the Tibetan Plateau(TP) to the ESTP, resulting in positive zonal moisture advection anomalies over the area. Furthermore, these anomalous westerlies transport climatologically warm air from the TP to the ESTP, leading to significant warm advection anomalies and vertical upward motion anomalies over the ESTP. The upward motion carries lower-tropospheric moisture upward, resulting in positive vertical moisture advection anomalies over the ESTP. The combination of these positive zonal and vertical moisture advection anomalies eventually leads to excessive SEP.

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Phase equilibria of slag systems“FeO”−SiO_(2)−CaO−Al_(2)O_(3)and“FeO”−SiO_(2)−CaO−MgO at 1200℃and p(O_(2))of 10^(−7)kPa

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Transactions of Nonferrous Metals Society of China 2025年第1期35卷 338-348页

作者： Sui XIE Qin-meng WANG Xue-yi GUO Chun-fa liao Bao-jun ZHAO Faculty of Materials Metallurgy and ChemistryJiangxi University of Science and TechnologyGanzhou 341000China National Rare Earth Functional Material Innovation Center Ganzhou 341000China School of Metallurgy and Environment Central South UniversityChangsha 410083China Sustainable Minerals Institute The University of QueenslandBrisbane 4072Australia

High-temperature experiments were carried out for the slag systems of“FeO”−SiO_(2)−CaO−Al_(2)O_(3)and“FeO”−SiO_(2)−CaO−MgO at 1200℃and p(O_(2))of 10^(−7)*** equilibrated samples were quenched,and the phase compositions were measured by electron probe microanalysis(EPMA).A series of pseudo-ternary and pseudo-binary phase diagrams are constructed to demonstrate their applications in copper smelting process and evaluation of the thermodynamic *** and tridymite are identified to be the major primary phases in the composition range related to the copper smelting *** is found that the operating window of the smelting slag is primarily determined by w_(Fe)/w_(SiO_(2))ratio in the *** MgO and Al_(2)O_(3)in the slag reduce the operating window which requires extra fluxing agent to keep the slag to be fully *** spinel solid solutions cause inaccurate predictions of the current thermodynamic database.

关键词： phase equilibrium “FeO”−SiO_(2)−CaO−Al_(2)O_(3)slag system “FeO”−SiO_(2)−CaO−MgO slag system oxygen partial pressure copper smelting slag FactSage

Design of Serially Concatenated Two-Level Polar Coded Modulation System with Low-Complexity

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China Communications 2025年第1期22卷 102-110页

作者： Zhou Lin liao Guojun Xu Lei An Ran Xie Xianzhong Wang Xi Xiamen Key Laboratory of Mobile Multimedia Communications College of Information Science and EngineeringHuaqiao UniversityXiamen 361021China College of Computer Science and Technology Chongqing University of Posts and TelecommunicationsChongqing 400065China China Mobile Communications Group Fujian Co. Ltd.FuzhouFujian 350003China

Multilevel coding(MLC)is a commonly used polar coded modulation scheme,but challenging to implement in engineering due to its high complexity and long decoding delay for high-order *** address these limitations,a novel two-level serially concatenated MLC scheme,in which the bitlevels with similar reliability are bundled and transmitted together,is *** proposed scheme hierarchically protects the two bit-level sets:the bitlevel sets at the higher level are sufficiently reliable and do not require excessive resources for protection,whereas only the bit-level sets at the lower level are encoded by polar *** proposed scheme has the advantages of low power consumption,low delay and high ***,an optimized constellation signal labeling rule that can enhance the performance is ***,the superiority of the proposed scheme is validated through the theoretical analysis and simulation *** with the bit interleaving coding modulation(BICM)scheme,under 256-quadrature amplitude modulation(QAM),the proposed scheme attains a performance gain of 1.0 dB while reducing the decoding complexity by 54.55%.

关键词： bit-interleaved coded modulation high-order modulation multilevel coding polar codes

A supramolecular nanoprodrug for prevention of gallstone formation

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Chinese Chemical Letters 2025年第2期36卷 354-359页

作者： Xiangjun Zhang Xiaodi Yang Yan Wang Zhongping Xu Sisi Yi Tao Guo Yue liao Xiyu Tang Jianxiang Zhang Ruibing Wang College of Pharmacy Chongqing Medical University Chongqing University Fuling Hospital Department of Pharmaceutics College of PharmacyThird Military Medical University (Army Medical University) Yu-Yue Pathology Scientific Research Center State Key Laboratory of Trauma and Chemical Poisoning Third Military Medical University (Army Medical University) State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of Macau

Cholelithiasis affects approximately 10%-20% of the adult population globally. And cholesterol accumulation and nucleation of cholesterol crystals are commonly recognized as the primary process in the initiation and progression of gallstones. Hydroxypropyl-β-cyclodextrin(HPCD) is a supramolecular host compound that can solubilize cholesterol, potentially serving as a preventative or therapeutic agent for cholelithiasis. However, we found that the administration of HPCD treatment did not impede the formation of gallstones in mice, mainly attributed to the pre-complexation of its cavity during the transition process. Here we synthesized a prodrug of HPCD and prepared a HPCD nanoparticle(HPCD-NP), which can be transported efficiently to the gallbladder through the hepatobiliary system following an intravenous injection. In the bile, the HPCD-NP degraded into free HPCD, bound to cholesterol crystals and gallstones within the gallbladder and effectively increased cholesterol solubilization, leading to gallstones regression. Given the established safety of both HPCD and cyclodextrin-based nanoparticles in numerous animal and human studies, HPCD-NP shows considerable promise for the prevention and treatment of human cholelithiasis.

关键词： Gallstone Hepatobiliary transport Host-guest interaction Hydroxypropyl-β-cyclodextrin Solubilization

Fatigue Strength Analysis of Dissimilar Aluminum Alloy TIG Welds

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 265-274页

作者： liao Xiangyun WANG Ruijie LIU Guoshou ZHAO Pinglin Faculty of Mechanical and Electrical Engineering Kunming University of Science and TechnologyKunming 650500China Faculty of Civil Engineering and Mechanics Kunming University of Science and TechnologyKunming 650500China

The constant amplitude loading fatigue tests were carried out on the 6061/7075 aluminum alloy TIG fillet welded lap specimens in this study,and the weld seam cross-section hardness was *** experimental results show that most specimens mainly failed at the 7075 side weld toes even though the base material tensile strength of 7075 is higher than that of *** maximum stress-strain concentration in the two finite element models is located at the 7075 side weld toe,which is basically consistent with the actual fracture *** weld zone on the 7075 side experiences severe material softening,with a large ***,the Vickers hardness value on the 6061 side negligibly changes and fluctuates around 70 *** obvious defects are found on the fatigue fracture,but a large number of secondary cracks *** germinate from the weld toe and propagate in the direction of the plate *** reinforcement has a serious impact on fatigue *** life will decrease exponentially as the weld reinforcement increases under low *** is found that the notch stress method can give a better fatigue life prediction for TIG weldments,and the errors of the predicted results are within the range of two factors,while the prediction accuracy decreases under low *** equivalent structural stress method can also be used for fatigue life prediction of TIG weldments,but the errors of prediction results are within the range of three factors,and the accuracy decreases under high stress.

关键词： TIG welding notch stress method equivalent structural stress method fatigue life finite element analysis

Ultrasensitive Chemiresistive Gas Sensors Based on Dual-Mesoporous Zinc Stannate Composites for Room Temperature Rice Quality Monitoring

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Nano-Micro Letters 2025年第5期17卷 359-373页

作者： Jinyong Xu Xuxiong Fan kaichun Xu kaidi Wu Hanlin liao Chao Zhang College of Mechanical Engineering Yangzhou UniversityYangzhou 225127People’s Republic of China ICB UMR 6303 CNRSUniv.Bourgogne Franche-ComtéUTBM90010 BelfortFrance

The integration of dual-mesoporous structures,the construction of heterojunctions,and the incorporation of highly concentrated oxygen vacancies are pivotal for advancing metal oxide-based gas ***,achieving an optimal design that simultaneously combines mesoporous structures,precise heterojunction modulation,and controlled oxygen vacancies through a one-step process remains *** study proposes an innovative method for fabricating zinc stannate semiconductors featuring dual-mesoporous structures and tunable oxygen vacancies via a direct solution precursor plasma spray *** a proof of concept,the resulting zinc stannate-based coatings are applied to detect 2-undecanone,a key biomarker for rice ***,the zinc oxide/zinc stannate heterojunctions with a well-defined secondary pore structure exhibit exceptional gas-sensing performance for 2-undecanone at room ***,practical experiments indicate that the developed sensor effectively identifies adulteration in various rice *** results underscore the potential of this method for designing metal oxides with tailored properties for high-performance gas *** enhanced adsorption capacity and dual-mesoporous features of this semiconductor make it a promising candidate for sensing applications in agricultural food safety inspections.

关键词： Zinc stannate Semiconductors Dual-mesoporous structure Gas sensor Biomarker sensing

Bone marrow mesenchymal stem cells promote uterine healing by activating the PI3K/AKT pathway and modulating inflammation in rat models

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World Journal of Stem Cells 2025年第1期17卷 22-39页

作者： Jing Yang Jun Yuan Yan-Qing Wen Li Wu Jiu-Jiang liao Hong-Bo Qi Women and Children’s Hospital of Chongqing Medical University Chongqing 401147China Chongqing Key Laboratory of Maternal and Fetal Medicine Chongqing Medical UniversityChongqing 400016China Obstetrics and Gynecology Guizhou Provincial People’s HospitalGuiyang 557300Guizhou ProvinceChina Research Laboratory of Reproduction and Development of Chinese Ministry of Education Chongqing Medical UniversityChongqing 400016China

BACKGROUND Uterine injury can cause uterine scarring,leading to a series of complications that threaten women’s *** healing is a complex process,and there are currently no effective *** our previous studies have shown that bone marrow mesenchymal stem cells(BMSCs)promote uterine damage repair,the underlying mechanisms remain ***,exploring the specific regulatory roles of BMSCs in uterine injury treatment is crucial for further understanding their functions and enhancing therapeutic *** To investigate the underlying mechanism by which BMSCs promote the process of uterine *** In in vivo experiments,we established a model of full-thickness uterine injury and injected BMSCs into the uterine *** sequencing was per-formed to determine the enrichment of differentially expressed genes at the wound *** in vitro experiments,we isolated rat uterine smooth muscle cells(USMCs)and cocultured them with BMSCs to observe the interaction between BMSCs and USMCs in the *** We found that the differentially expressed genes were mainly related to cell growth,tissue repair,and angiogenesis,while the phosphoinositide 3-kinase(PI3K)/protein kinase B(AKT)pathway was highly *** reverse-transcription polymerase chain reaction was used to validate differentially expressed genes,and the results demonstrated that BMSCs can upregulate genes related to regeneration and downregulate genes related to *** BMSCs promoted the migration and proliferation of USMCs,and the USMC microenvironment promoted the myogenic differentiation of ***,we validated the PI3K/AKT pathway in tissues and cells and showed that BMSCs activate the PI3K/AKT pathway to promote the regeneration of uterine smooth muscle both in vivo and in *** BMSCs upregulated uterine wound regeneration and anti-inflammatory factors and enhanced uterine smooth muscle proliferation throu

关键词： Uterine injury Bone marrow mesenchymal stem cells Uterine smooth muscle cells Phosphoinositide 3-kinase/protein kinase B pathway Cell-cell interactions Cell proliferation Immune regulation Wound regeneration

New insights into the phylogeny and infrageneric taxonomy of Saussurea based on hybrid capture phylogenomics(Hyb-Seq)

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Plant Diversity 2025年第1期47卷 21-33页

作者： Liansheng Xu Zhuqiu Song Tian Li Zichao Jin Buyun Zhang Siyi Du Shuyuan liao Xingjie Zhong Yousheng Chen Plant Science Research Center South China Botanical GardenChinese Academy of SciencesGuangzhou 510650China Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China Guangzhou 510650China University of the Chinese Academy of Sciences Beijing 100049China Central-Southern Safety and Environment Technology Institute Co. LTDWuhan 430064China

Saussurea is one of the largest and most rapidly evolving genera within the Asteraceae,comprising approximately 520 species from the Northern Hemisphere.A comprehensive infrageneric classification,supported by robust phylogenetic trees and corroborated by morphological and other data,has not yet been *** the first time,we recovered a well-resolved nuclear phylogeny of Saussurea consisting of four main clades,which was also supported by morphological *** analyses show that ancient hybridization is the most likely source of deep cytoplasmic-nuclear conflict in Saussurea,and a phylogeny based on nuclear data is more suitable than one based on chloroplast data for exploring the infrageneric classification of *** on the nuclear phylogeny obtained and morphological characters,we proposed a revised infrageneric taxonomy of Saussurea,which includes four subgenera and 13 ***,1)***,***,***,and *** were moved from *** to ***,2)*** was moved from *** to ***,and 3)*** was moved from *** to ***.

关键词： Asteraceae Morphology Next-generation sequencing Phylogenomics Subgenus