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Science China(Information Sciences) 2025年第1期68卷 400-401页

作者： Chenyu LIU Yibo WANG Wenhui xU Shuqi HUANG Chunxiao YU Zeyu YANG xiaole JIA xiaoxi LI Bochang LI Zhengdong luo Cizhe FANG Yan LIU Tiangui YOU xin OU Genquan HAN School of Microelectronics Xidian University Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Hangzhou Institute of Technology Xidian University

Titanium/Gold （Ti/Au） metals have been widely employed as ohmic metal contacts on n+Ga2O3,exhibiting the specific contact resistance （ρc） of 10-5-10-6Ω·cm2[1].But previous studies have revealed the presence of a defective Ga2O3layer and reactive Ti-Ga2O3layer at the annealed Ti/*** an interfacial layer can afect the performance of ohmic contact,which may become more pronounced in power devices subjected to electrical stress and high-frequency ***,there have been no reports on the impact of bias stress effects and dynamic degradation of Ti/Au ohmic contacts on n+Ga2O3.

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Planning and Control of COP-Switch-Based Planar Biped Walking

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Journal of Bionic Engineering 2011年第1期8卷 33-48页

作者： x. luo W. Li C. Zhu School of Mechanical Engineering Southeast University Nanjing 210018 P. R. China Department of Systems Life Engineering Maebashi Institute of Technology Gunma Prefecture 371-0816 Japan

Efficient walking is one of the main goals of researches on biped robots. A feasible way is to translate the understanding from human walking into robot walking, for example, an artificial control approach on a human like walking structure. In this paper, a walking pattern based on Center of Pressure （COP） switched and modeled after human walking is introduced firstly. Then, a parameterization method for the proposed walking gait is presented. In view of the complication, a multi-space planning method which divides the whole planning task into three sub-spaces, including simplified model space, work space and joint space, is proposed. Furthermore, a finite-state-based control method is also developed to implement the proposed walking pattern. The state switches of this method are driven by sensor events. For convincing verification, a 2D simulation system with a 9-1ink planar biped robot is developed. The simulation results exhibit an efficient walking gait.

关键词： biped walking bio-inspired COP switch control multi-space planning simulation

Impact of ocean data assimilation on the seasonal forecast of the 2014/15 marine heatwave in the Northeast Pacific Ocean

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 24-31页

作者： Tiantian Tang Jiaying He Huihang Sun Jingjia luo Institute for Climate and Application Research(ICAR)/Key Laboratory of Meteorological Disaster Nanjing University of Information Science and TechnologyNanjingChina

A remarkable marine heatwave,known as the“Blob”,occurred in the Northeast Pacific Ocean from late 2013 to early 2016,which displayed strong warm anomalies extending from the surface to a depth of 300 *** study employed two assimilation schemes based on the global Climate Forecast System of Nanjing University of Information Science(NUIST-CFS 1.0)to investigate the impact of ocean data assimilation on the seasonal prediction of this extreme marine *** sea surface temperature(SST)nudging scheme assimilates SST only,while the deterministic ensemble Kalman filter(EnKF)scheme assimilates observations from the surface to the deep *** latter notably improves the forecasting skill for subsurface temperature anomalies,especially at the depth of 100-300 m(the lower layer),outperforming the SST nudging *** excels in predicting both horizontal and vertical heat transport in the lower layer,contributing to improved forecasts of the lower-layer warming during the *** improvements stem from the assimilation of subsurface observational data,which are important in predicting the upper-ocean *** results suggest that assimilating ocean data with the EnKF scheme significantly enhances the accuracy in predicting subsurface temperature anomalies during the Blob and offers better understanding of its underlying mechanisms.

关键词： Seasonal forecast Ocean data assimilation Marine heatwave Subsurface temperature

Engineering high-performance chemiluminescent probes via enzymatic pocket targeting: high-throughput screening for ultralong afterglow imaging of orthotopic hepatocellular carcinoma

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Science China Chemistry 2025年

作者： Shuai Huang Shuaige Bai Ting luo Bin Feng Min Liu Fan Zheng Shuang Huang Yanpeng Fang Dan Ding Wenbin Zeng xiangya School of Pharmaceutical Sciences Central South University College of Life Sciences Nankai University

Hepatocellular carcinoma （HCC） is a highly aggressive liver malignancy and the main form of liver cancer. Early diagnosis and treatment of HCC can effectively reduce mortality. Carboxylesterase （CE）-specific detection and imaging can be used for early diagnosis and image-guided surgical of HCC. However, traditional optical probes suffer from poor selectivity and low imaging signal-to-noise ratio. Here, we have constructed a series of chemiluminescent probes for carboxylesterase detection based on the strategy of enzymatic pocket-oriented steric tailoring techniques. The probes with different unique and excellent properties have been obtained through the structure-based steric hindrance adjustment on the recognition site. Here, CE-2 has been successfully used for high-throughput screening of rapid carboxylesterase inhibitors due to its extremely low detection limit (2.5×10-4U mL-1) and fast recognition ability. CE-3 has been successfully used for image-guided surgery of orthotopic hepatocellular carcinoma due to its ultra-long chemiluminescence imaging （over 12 h） of hepatocellular carcinoma. This study may promote advances in the rapid detection and screening of inhibitory drugs for CE and the field of surgical navigation in HCC.

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Optimization of CZTSSe thin film solar cell performance using PbS back surface field layer

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Optoelectronics Letters 2025年

作者： WENJING luo ZHIJIAN BAI YUMING xUE luoxIN WANG YANHONG DING HONGLI DAI Tianjin Key Laboratory of Film Electronic & Communication Devices， School of Electronics Information Engineering， Tianjin University of Technology School of Materials Science and Engineering ，Jilin University

CZTSSe is an Earth-abundant， environmentally friendly， and low-cost material， with a current record power conversion efficiency of 14.9%， This result is well below the prediction of the Shockley-Queisser limit. To improve the performance of solar cells， a layer of PbS (BSF) was added to the CZTSSe， which was simulated using the SCAPS-1D software. The optimal photovoltaic performance of AZO/ZnO/CdS/CZTSSe/PbS/Mo was studied by changing the parameters of the CZTSSe absorption layer and PbS layer. Studies have shown that the efficiency can be increased to 20.86% after using PbS.

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RELATIONSHIP　BETWEEN　STRUCTURE　AND　SHAPE　MEMORY　EFFECT　OF　SEGMENTED　POLYURETHANES

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Chinese Chemical Letters 1996年第8期7卷 756-758页

作者： Li, FK Zhang, x xu, M luo, xL ACAD SINICA INST CHEMPOLYMER PHYS LABBEIJING 100080PEOPLES R CHINA UNIV SCI & TECHNOL CHINA DEPT MAT SCIHEFEI 230026PEOPLES R CHINA

The shape memory behavior of a series of PCL/MEI/BDO segmentedpolyurethanes of different composition is presented. The molecular weight of the PCLdids is in the range of 1600-7000. It is found that the shape memory effect ofsegmented polyurethanes is really related with the crystallinity of the soft segmentregions and the formation of stable hard segment domains as predicted by the modelproposed in our previous papers.

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宁夏地区地震视应力时空变化特征分析

地震工程学报 2025年第1期47卷 178-188,198页

作者：罗恒之曾宪伟李文君罗国富宁夏回族自治区地震局宁夏银川750001

选取2010年以来宁夏及邻区300余次M L≥2.5地震,计算这些地震的视应力值和相关震源参数,扣除震级对视应力的影响后,得到宁夏四个不同区域的地震视应力结果,并分析该区域视应力与地震活动水平的相关关系。结果表明:(1)宁夏与内蒙古交界... 详细信息

选取2010年以来宁夏及邻区300余次M L≥2.5地震,计算这些地震的视应力值和相关震源参数,扣除震级对视应力的影响后,得到宁夏四个不同区域的地震视应力结果,并分析该区域视应力与地震活动水平的相关关系。结果表明:(1)宁夏与内蒙古交界地区和香山至天景山地区视应力整体偏低,地震前后视应力无显著异常,分析其原因可能与该区域地震活动水平整体偏低有关;(2)吴忠至灵武地区M L2.5~2.9震级档视应力在2016—2020年期间出现上升-下降异常,该异常可能与2021年灵武M L3.6震群和M L4.5地震有关;(3)海原至六盘山地区M L≥2.5地震视应力在2015—2020年期间出现上升-下降异常,差视应力在2016—2017年期间出现高值异常,该异常可能与2017年固原M L4.9地震有关;(4)宁夏地区视应力高值异常在空间上整体呈北东向分布,与青藏块体东北缘北东向挤压方向一致,表现出相邻区域地震活动水平交替活跃现象,即海原至六盘山地区地震活动水平偏高,相邻的香山至天景山地区地震活动水平偏低,吴忠至灵武地区地震活动水平偏高,相邻的宁夏与内蒙古交界地区地震活动水平偏低;(5)通过研究地震视应力与地震活动的相关关系,可以进一步了解宁夏地区地震活动特点和区域应力状态。

关键词：视应力地震活动水平宁夏及邻区

欧盟转基因食品强制标识制度相关立法及其启示

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食品科学 2025年第2期46卷 290-298页

作者：张晶罗佼妮西南交通大学公共管理学院四川成都610031

转基因食品标识管理是保障食品安全的重要环节。欧盟对转基因食品强制标识的审慎监管为控制安全风险提供了新的路径选择,其通过不断扩大转基因食品标识范围、降低标识风险阈值、建立全过程追溯以及转基因成分检测体系,持续优化转基因食... 详细信息

转基因食品标识管理是保障食品安全的重要环节。欧盟对转基因食品强制标识的审慎监管为控制安全风险提供了新的路径选择,其通过不断扩大转基因食品标识范围、降低标识风险阈值、建立全过程追溯以及转基因成分检测体系,持续优化转基因食品标识制度并构建了完善的法律体系,呈现出转基因食品安全监管的强制性特色。本文通过回顾欧盟转基因食品强制标识制度的历史沿革,总结出其主要立法内容和法律体系的显著特征,提出完善我国转基因食品标识制度的3项立法建议以及建立追溯、检测和惩罚救济的配套措施等,以期为解决我国转基因食品标识制度所存在的问题提供创新思路。

关键词：欧盟转基因食品强制标识可追溯

Unveiling phosphofructokinase as the key target: an innovative strategy combining pull-down assays with optical imaging for snail-killing mechanism exploration

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Science China Chemistry 2025年

作者： Yuxun Lu Weisi Wang Le Yu Yuqiang Zhao Ying Chen Yunhai Guo Bingrong luo Yuhua Liu Shizhu Li Liping Duan Ying Zhou Yunnan Characteristic Plant Extraction Laboratory College of Chemical Science and Technology Yunnan University College of Biological and Chemical Engineering Guangxi University of Science and Technology National Institute of Parasitic Diseases Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research)NHC Key Laboratory of Parasite and Vector Biology WHO Collaborating Centre for Tropical Diseases National Center for International Research on Tropical Diseases School of Chemistry and Environment Yunnan Minzu University Dali Institute of Schistosomiasis Control

The Pomacea canaliculata, also known as apple snail, is an invasive species in China, posing a serious threat to agricultural production and public health. To prevent its rampant infestation, we developed a highly efficient snail-killing lead compound, 1-(4-chlorophenyl)-3-(pyridin-3-yl)urea (PBQ). However, the killing mechanism of PBQ remains unclear. To elucidate this, two novel compounds, B-PBQ and J-PBQ, were developed through structural modification of PBQ and were used, through both protein pull-down assay and confocal laser scanning microscopy imaging, to identify and confirm that phosphofructokinase(PFK) in the apple snail is the primary target protein of PBQ. Further studies revealed that PBQ successfully inhibits the activity,content, and expression of PFK in apple snail, disrupting the glycolysis pathway and leading to abnormal energy *** disruptions impair the snail’s tolerance to low oxygen, resulting in its efficient eradication. These findings offer a promising direction for developing next-generation PFK-targeted snail-killing pesticides. Furthermore, the strategy of combining pull-down assays with optical imaging used in this work provides a novel approach for the exploration of mechanisms of other pesticide candidates.

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基于古代汉语实践思维的大棚温室无线控制系统

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农机化研究 2025年第4期47卷 218-223页

作者：罗杨胡士强宜宾学院四川宜宾644000 红河学院云南红河661100

为了实现对大棚温室内环境的实时监测和控制,提高农作物的生长质量和产量,将古代汉语实践思维注重实际应用和实践操作、强调“知行合一”的理念,应用到大棚温室无线控制系统的设计中,注重系统的实际应用,通过设计无线采集子模块、无线... 详细信息

为了实现对大棚温室内环境的实时监测和控制,提高农作物的生长质量和产量,将古代汉语实践思维注重实际应用和实践操作、强调“知行合一”的理念,应用到大棚温室无线控制系统的设计中,注重系统的实际应用,通过设计无线采集子模块、无线控制子模块、供电网络子模块和各个子电路,实现了整个系统。测试结果表明:系统采集温度的差值为±0.2℃,相对湿度差值为±2%RH,且与系统预设的温湿度值基本一致,准确性较高,符合设计需求。

关键词：大棚无线控制农作物古代汉语实验思维

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