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D-DeepOCSORT: multi-object tracking algorithm based on LiDAR and monocular camera

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Optoelectronics Letters 2025年

作者： he Xiao ReN Shuai LIU Chang SHI Lei School of Information engineering， Chang'an University School of Control of Robotic and Autonomous Systems， University of California Berkeley

Multi-object tracking is a fundamental problem in computer vision， and DeepOCSORT， due to its reliance on the 2D image position information of targets， tends to exhibit prediction drift. To enhance the tracking stability of DeepOCSORT， this paper proposes a novel multi-sensor data fusion-based multi-object tracking method. Specifically， we build upon the DeepOCSORT foundation and additionally integrate target velocity information directly measured by LiDAR. The introduction of this velocity information is conducted from three perspectives: firstly， during data association， a penalty term is constructed based on the differences in target velocities to constrain generating matches with consistent velocities; secondly， using LiDAR velocity for initialization and online updating of the velocity state within the tracker， making tracking predictions more stable; thirdly， controlling the degree of dependence on velocity information by adjusting the process noise covariance matrix. evaluation results on the KITTI dataset demonstrate that compared to the original DeepOCSORT， the proposed improved multi-source heterogeneous information fusion method significantly enhances tracking performance， with maximum improvements of 3.35， 3.26， and 3.71 on the HOTA， MOTA， and IDF1 metrics， respectively. This study provides an effective approach to building a more stable and accurate multi-object tracking system.

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基于OBe理念的农业信息数智化处理研究

农机化研究 2025年第4期47卷 197-202页

作者：何柳武汉商学院信息工程学院武汉430056

基于OBe理念,设计了农业信息系统。首先,基于ZigBee技术设计传感器网络,传感器检测数据通过ZigBee网络和运营商基站上传到农田信息服务器,对同类传感器数据进行融合后,得到同类传感器数据表征值;然后,对6类传感器的表征值进行融合,得到... 详细信息

基于OBe理念,设计了农业信息系统。首先,基于ZigBee技术设计传感器网络,传感器检测数据通过ZigBee网络和运营商基站上传到农田信息服务器,对同类传感器数据进行融合后,得到同类传感器数据表征值;然后,对6类传感器的表征值进行融合,得到农田环境综合评估结果。设计微信小程序,显示农田中6类传感器的表征值,进而显示农田环境综合评估结果。对传感器上传数据可靠性进行测试,与实地测试对比,误差区间为[0,0.3℃];对微信小程序显示效果进行验证,小程序可以清晰地将农田环境综合评估结果展示给用户。

关键词：农业信息数智化处理 OBe理念数据融合反向设计

乡村文化振兴促进农民精神生活共同富裕的优势、障碍与进路

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西北农林科技大学学报（社会科学版） 2025年第1期25卷 36-43页

作者：贺莉莉西安理工大学马克思主义学院西安710048

共同富裕是中国特色社会主义的本质要求,是人民群众的共同期盼。共同富裕旨在实现生活品质全面提升,不仅追求物质层面的富饶与充裕,而且强调精神世界的丰富与满足,即物质富足与精神充实和谐并进。随着中国特色社会主义迈向新发展阶段,... 详细信息

共同富裕是中国特色社会主义的本质要求,是人民群众的共同期盼。共同富裕旨在实现生活品质全面提升,不仅追求物质层面的富饶与充裕,而且强调精神世界的丰富与满足,即物质富足与精神充实和谐并进。随着中国特色社会主义迈向新发展阶段,积极培育并激发农民精神生活共同富裕,有助于提升农民文化底蕴与道德修养,为乡村文化振兴提供强大精神动力和智力支持,从而推动乡村社会全面发展与繁荣。乡村文化振兴是解决城乡人民精神文化生活发展不平衡问题的重要手段,是促进农民精神生活共同富裕的关键途径。乡村文化振兴具有统一思想认识、培育乡风文明、实现精神自强等显著优势,为农民精神生活共同富裕提供思想基础、文化资源和内生动力。然而,囿于农民综合素养不高、乡村文化价值在多元文化碰撞中日渐式微以及文化振兴载体建设不畅等现实障碍,农民精神生活共同富裕的任务任重而道远。为此,应通过强化宣传教育、推动乡村文化融入社会主义文化繁荣大局之中、建设乡村新时代文明实践中心等举措,充分发挥乡村文化振兴在促进农民精神生活共同富裕中的重要作用。

关键词：乡村文化振兴农民精神生活共同富裕

以文学的方式“重构”古代西域——读邱华栋《空城纪》

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当代文坛 2025年第1期 15-22页

作者：贺仲明暨南大学中文系

邱华栋的长篇小说《空城纪》以古西域历史为背景,虚实结合,讲述了多个古西域国度的故事。其涉及广阔的地域和漫长时代,塑造了大量生动的人物形象,对其地理、气候、环境和日常生活做了细致再现,是对历史的深度还原。同时,作品还表达了各... 详细信息

邱华栋的长篇小说《空城纪》以古西域历史为背景,虚实结合,讲述了多个古西域国度的故事。其涉及广阔的地域和漫长时代,塑造了大量生动的人物形象,对其地理、气候、环境和日常生活做了细致再现,是对历史的深度还原。同时,作品还表达了各时代人们对爱和美的追求、对和平的向往,蕴含着民族和谐和文明发展的内在价值观念。作品建构于作者对地方的深厚感情和翔实资料的基础之上,也传达出现代的人文精神和思想理念,更呈现出过人的艺术想象力,是一次对古西域历史的卓越文学建构。

关键词：《空城纪》西域文学历史

Can patients with mild non-neoplastic lesions diagnosed at baseline screening be safely exempt from surveillance: evidence from multicenter community-based cohorts

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Science China Life Sciences 2025年第1期 263-271页

作者： Siyi he Zhiyi Zhang Guohui Song Zhenhai Wang Chunyun Dai Shipeng Yan Kun Jiang Bingbing Song he Li Maomao Cao Dianqin Sun Fan Yang Xinxin Yan Shaoli Zhang Yi Teng Qianru Li Changfa Xia Wanqing Chen Office of Cancer Screening National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical College Department of Gastroenterology Gansu Wuwei Tumor Hospital Cixian Cancer Institute Linzhou Cancer Hospital Center for Disease Control and Prevention of Sheyang County Department of Cancer Prevention and Control Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of MedicineCentral South University Luoshan Center for Disease Control and Prevention Office for Cancer Control and Research Affiliated Cancer Hospital of Harbin Medical University

Surveillance recommendations for gastric cancer（GC） in current guidelines focused on advanced precancerous lesions and were based on precise diagnosis of severity/extent of baseline lesions. We aimed to develop a less endoscopy-related equipment-dependent risk-stratification tool, and assessed whether mild-precursor-lesion patients can be safely exempt from surveillance. In the multicenter communitybased cohort, 75,051 participants receiving baseline endoscopy were enrolled during 2015–2017 and followed-up until 2021. Cumulative incidence rates（CIRs） of GC for precancerous-conditions were calculated by Kaplan-Meier method and compared by Log-rank tests. Mixedeffects Cox regression models were used to detect potential factors for progression towards GC. A risk score was calculated as counts of selected factors. An independent cohort, including 26,586 participants was used for external validation. During a median follow-up of 6.25 years, CIRs of GC were 0.302%, 0.436%, and 4.756% for normal group, non-neoplastic（atrophic gastritis/intestinal metaplasia） and neoplastic lesions（low-grade/high-grade dysplasia）, respectively(Ptrendedictors, including male, ≥60 years, smoking, and limited vegetable consumption, were selected for risk-stratification. High-risk patients（≥3 risk factors） with non-neoplastic lesions showed higher GC risks（adjusted HR=7.73, 95%CI: 4.29–13.92）, and their four-year CIR reached the one-year CIR of neoplastic lesions. Further categorizing non-neoplastic lesions by histological grade, both patients with moderate-to-severe lesions（aHR=3.07, 95%CI: 1.67–5.64） and high-risk patients with mild lesions（aHR=7.29, 95%CI: 3.58–14.86） showed higher risks. Consistent trends were observed in validation cohort. High-risk mild-precursor-lesion patients should receive surveillance within 3–5 years after baseline screening. Our study provides evidence on supplementing current guideline recommendations.

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Recent progress in metal-organic frameworks(Part II—material application)

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Science China Chemistry 2025年

作者： Jiandong Pang Wentao Jiang Xue-Wen Zhang Hao-Long Zhou Yuxiu Sun Wei Gong Bin Wang Fuyin Ma Linwei he Long Chen Qiang Chen he-Qi Zheng Yuanjing Cui Wen-Jie Shi Chao Zhang Mei Wang Yue-Biao Zhang Jie-Peng Zhang Chongli Zhong Yong Cui Shuao Wang Jian-Rong Li Guodong Qian Tong-Bu Lu Huan Pang Xian-he Bu Institute for New energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology School of Chemistry and Chemical engineering Yangzhou University School of Materials Science and engineering Nankai University School of Physical Science and Technology ShanghaiTech University MOe Key Laboratory of Bioinorganic and Synthetic Chemistry GBRCE for Functional Molecular Engineering School of Chemistry IGCMESun Yat-sen University Department of Chemistry Shantou University School of Chemical engineering and Technology Tiangong University School of Chemistry and Chemical engineering Shanghai Jiao Tong University State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences Soochow University College of Materials Science & engineering Beijing University of Technology State Key Laboratory of Silicon and Advanced Semiconductor Materials Cyrus Tang Center for Sensor Materials and ApplicationsSchool of Materials Science & Engineering Zhejiang University

As a class of functional crystalline porous materials, metal-organic frameworks(MOFs) gained rapid development in the past three decades and a large number of MOFs with ordered structures, high surface areas, and functionalized channels have been investigated. MOFs and MOF-derived/composite materials show great potential in many application fields. In this review, we discussed the main applications of MOFs and MOF-derived/composite materials in small molecule storage, separation, luminescence, sensing, multitype catalysis, and energy storage. In addition, challenges and problems in the future research of MOFsrelated fields are also discussed.

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玉米免耕播种机振动特性分析与优化

农机化研究 2025年第4期47卷 122-126页

作者：何俊艺何家盼湖南汽车工程职业学院湖南株洲412001

玉米免耕播种机在作业时会产生振动,影响播种机的工作效率和生产质量,故对其振动特性进行分析和优化非常重要。为此,对玉米免耕播种机振动特性进行了分析与优化。首先,通过试验测试和有限元模拟确定了播种机的振动特性,包括自然频率、... 详细信息

玉米免耕播种机在作业时会产生振动,影响播种机的工作效率和生产质量,故对其振动特性进行分析和优化非常重要。为此,对玉米免耕播种机振动特性进行了分析与优化。首先,通过试验测试和有限元模拟确定了播种机的振动特性,包括自然频率、振型等;然后,针对振动特性中存在的问题,采用了多种优化方法(如结构优化、材料优化等),以改善播种机的振动性能;最后,通过试验和仿真模拟验证了优化后的播种机性能。研究结果表明:通过优化设计,可以有效地降低播种机的振动幅值,提高工作效率和生产质量。

关键词：玉米免耕播种机振动特性自然频率振型振幅结构优化

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efficient and Stable Photoassisted Lithium‑Ion Battery enabled by Photocathode with Synergistically Boosted Carriers Dynamics

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Nano-Micro Letters 2025年第3期17卷 440-454页

作者： Zelin Ma Shiyao Wang Zhuangzhuang Ma Juan Li Luomeng Zhao Zhihuan Li Shiyuan Wang Yazhou Shuang Jiulong Wang Fang Wang Weiwei Xia Jie Jian Yibo he Junjie Wang Pengfei Guo Hongqiang Wang State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU)Xi’an 710072People’s Republic of China State Key Laboratory of Solidification Processing School of Materials Science and Engineering DepartmentNorthwestern Polytechnical UniversityXi’an 710072People’s Republic of China State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072People’s Republic of China Research and Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen 518063People’s Republic of China Key Laboratory of Applied Surface and Colloid Chemistry Shaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringNational Ministry of EducationShaanxi Normal UniversityXi’an 710119People’s Republic of China

efficient and stable photocathodes with versatility are of significance in photoassisted lithium-ion batteries(PLIBs),while there is always a request on fast carrier transport in electrochemical active *** work proposes a general approach of creating bulk heterojunction to boost the carrier mobility of photocathodes by simply laser assisted embedding of plasmonic *** employed in PLIBs,it was found effective for synchronously enhanced photocharge separation and transport in light charging ***,experimental photon spectroscopy,finite difference time domain method simulation and theoretical analyses demonstrate that the improved carrier dynamics are driven by the plasmonic-induced hot electron injection from metal to TiO_(2),as well as the enhanced conductivity in TiO2 matrix due to the formation of oxygen vacancies after Schottky *** from these merits,several benchmark values in performance of TiO2-based photocathode applied in PLIBs are set,including the capacity of 276 mAh g^(−1)at 0.2 A g^(−1)under illumination,photoconversion efficiency of 1.276%at 3 A g^(−1),less capacity and Columbic efficiency loss even through 200 *** results exemplify the potential of the bulk heterojunction strategy in developing highly efficient and stable photoassisted energy storage systems.

关键词： Photoassisted lithium-ion batteries Bulk heterojunction Carrier dynamics TiO2 nanofiber Plasmonic metal nanocrystals

从中国式现代化实践的沃土中长出理论——华中乡土派的研究方法论

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武汉大学学报（哲学社会科学版） 2025年第1期78卷 28-42页

作者：贺雪峰武汉大学社会学院湖北武汉430072

最近20多年来,华中村治研究群体坚持田野调研,做从土地中长出理论的学问,被学界称为华中乡土派。大量研究表明,当前中国社会科学研究存在的一个问题是过于强调小循环的对话式研究,而在对话式的研究中,中国式现代化的实践变成支离破碎的... 详细信息

最近20多年来,华中村治研究群体坚持田野调研,做从土地中长出理论的学问,被学界称为华中乡土派。大量研究表明,当前中国社会科学研究存在的一个问题是过于强调小循环的对话式研究,而在对话式的研究中,中国式现代化的实践变成支离破碎的经验片段,中国经验的完整性无法呈现,社会科学研究既无法回应中国式现代化实践中需要解答的问题,又无法从中国实践中形成一般化的理论。要改变中国社会科学研究的这一困境,必须强调中国社会科学的主体性,建立从中国式现代化实践中提出问题并回到实践中去接受检验的社会科学研究大循环。只有真正扎根田野,通过饱和经验训练,形成研究者经验质感,具备在研究中的想事能力,从伟大的中国式现代化实践中吸取理论营养,才能真正建立有主体性的中国社会科学。

关键词：中国式现代化中国自主知识体系经验质感饱和经验法