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Real-Time Detection and Instance Segmentation of Strawberry in Unstructured Environment

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Computers, Materials & Continua 2024年第1期78卷 1481-1501页

作者： Chengjun Wang Fan Ding Yiwen Wang Renyuan Wu Xingyu Yao chengjie jiang Liuyi Ling School of Artificial Intelligence Anhui University of Science and TechnologyHuainan232001China School of Mechanical Engineering Anhui University of Science and TechnologyHuainan232001China

The real-time detection and instance segmentation of strawberries constitute fundamental components in the development of strawberry harvesting ***-time identification of strawberries in an unstructured envi-ronment is a challenging *** instance segmentation algorithms for strawberries suffer from issues such as poor real-time performance and low *** this end,the present study proposes an Efficient YOLACT(E-YOLACT)algorithm for strawberry detection and segmentation based on the YOLACT *** key enhancements of the E-YOLACT encompass the development of a lightweight attention mechanism,pyramid squeeze shuffle attention(PSSA),for efficient feature ***,an attention-guided context-feature pyramid network(AC-FPN)is employed instead of FPN to optimize the architecture’s ***,a feature-enhanced model(FEM)is introduced to enhance the prediction head’s capabilities,while efficient fast non-maximum suppression(EF-NMS)is devised to improve non-maximum *** experimental results demonstrate that the E-YOLACT achieves a Box-mAP and Mask-mAP of 77.9 and 76.6,respectively,on the custom ***,it exhibits an impressive category accuracy of 93.5%.Notably,the E-YOLACT also demonstrates a remarkable real-time detection capability with a speed of 34.8 *** method proposed in this article presents an efficient approach for the vision system of a strawberry-picking robot.

关键词： YOLACT real-time detection instance segmentation attention mechanism strawberry

Pressure Regulated Printing of Semiliquid Metal on Electrospinning Film Enables Breathable and Waterproof Wearable Electronics

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Advanced Fiber Materials 2024年第2期6卷 354-366页

作者： Rui Guo Tianyu Li chengjie jiang Hui Zong Xueting Li Chunxue Wan Haixia Yu Xian Huang Department of Biomedical Engineering Tianjin University92 Weijin RoadTianjin 300072China Flexible Wearable Technology Research Center Institute of Flexible Electronics Technology of Tsinghua906 Yatai RoadJiaxing 314033China Qiantang Science and Technology Innovation Center Institute of Wearable Technology and Bioelectronics100223Rd StreetHangzhou 310018China

Application of liquid metals and electrospun nanofibers offer a promising solution to insufficient resilience and human com-fort of wearable ***,a sustainable manufacturing process is hindered by the low surface tension of liquid metal,and it's poor attachment to the surface of the *** research reveals that tuning the pressure can control the adhesion of semiliquid metal(SLM)on substrates with varying roughness to achieve selective ***,a simple and rapid(30 s)fabrication method based on selective adhesion and low mobility of SLM is presented for preparing a multilayered monitoring device capable of measuring human body temperature and ECG signals for 24 *** device exhibits excellent air permeability of 311.1 g·m^(-2)·h^(-1),water resistance(washing for 120 min).Our novel approach can inspire the development of methods for printing liquid metal circuits on roughness substrates and enable the practical use of waterproof and breathable wearable electronic devices in the future.

关键词： Wearable electronics Liquid metal Air permeability Water resistance Multilayer circuits

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基础设施项目的投融资分析及风险控制研究

科技通报 2017年第3期33卷 252-257页

作者：蒋承杰对外经济贸易大学北京100029 浙江建设职业技术学院杭州311231

基础设施建设水平衡量一个国家综合实力,项目的投融资与风险控制对于基础设施建设发展具有重大意义。本文阐述了基础设施项目投融资面临的风险类型,建立了测度基础设施项目投融资风险的资产定价模型和失败故障树,得出我国目前基础设施... 详细信息

基础设施建设水平衡量一个国家综合实力,项目的投融资与风险控制对于基础设施建设发展具有重大意义。本文阐述了基础设施项目投融资面临的风险类型,建立了测度基础设施项目投融资风险的资产定价模型和失败故障树,得出我国目前基础设施投融资方式和风险控制方面存在的问题,进而提出改进投融资方式及风险控制的建议,旨在改善我国基础设施建设投融资环境、树立根据风险量化分析选择投融资模式的理念。

关键词：基础设施投融资风险

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建筑固体废弃物资源化利用及可行性技术

科技通报 2013年第3期29卷 212-216页

作者：姜健蒋承杰蒋学浙江建设职业技术学院杭州311231

阐述了我国建筑固体废弃物生产和资源化利用的基本情况;介绍了我国建筑固体废弃物处理的现状,主要有填埋、焚烧、堆肥、回收利用、循环再生等5种方式,分析了这5种方式的优缺点、发展趋势和对环境的影响;探讨了在建筑施工过程及房屋拆除... 详细信息

阐述了我国建筑固体废弃物生产和资源化利用的基本情况;介绍了我国建筑固体废弃物处理的现状,主要有填埋、焚烧、堆肥、回收利用、循环再生等5种方式,分析了这5种方式的优缺点、发展趋势和对环境的影响;探讨了在建筑施工过程及房屋拆除过程中可能产生的7类固体废弃物,包括废旧混凝土、碎砖瓦、废钢筋、废竹木、废玻璃、废弃土、废沥青等的处理技术和再生产品。

关键词：建筑固体废弃物资源化利用可行性技术

Semi-liquid metal-based highly permeable and adhesive electronic skin inspired by spider web

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Science Bulletin 2024年第17期69卷 2723-2734页

作者： Rui Guo Xiaoqing Li Yingtong Zhou Yuqi Zhang chengjie jiang Yang Yu Qingting Tan Wenbo Ding Hongzhang Wang School of Precision Instrument and Opto-Electronics Engineering The State Key Laboratory of Precision Measuring Technology and InstrumentsTianjin UniversityTianjin 300072China Institute of Materials Research&Center of Double Helix Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China DREAM Ink Technologies Co.Ltd. Beijing 100083China Department of Ultrasound Beijing Tsinghua Changgung HospitalSchool of Clinical MedicineTsinghua UniversityBeijing 102218China

Soft and stretchable electronics have garnered significant attention in various fields, such as wearable electronics, electronic skins, and soft robotics. However, current wearable electronics made from materials like conductive elastomers, hydrogels, and liquid metals face limitations, including low permeability, poor adhesion, inadequate conductivity, and limited stretchability. These issues hinder their effectiveness in long-term healthcare monitoring and exercise monitoring. To address these challenges,we introduce a novel design of web-droplet-like electronics featuring a semi-liquid metal coating for wearable applications. This innovative design offers high permeability, excellent stretchability, strong adhesion, and good conductivity for the electronic skin. The unique structure, inspired by the architecture of a spider web, significantly enhances air permeability compared to commercial breathable ***, the distribution of polyborosiloxane mimics the adhesive properties of spider web mucus,while the use of semi-liquid metals in this design results in remarkable conductivity(9 × 10^(6)S/m) and tensile performance(up to 850% strain). This advanced electronic skin technology enables long-term monitoring of various physiological parameters and supports machine learning recognition functions with unparalleled advantages. This web-droplet structure design strategy holds great promise for commercial applications in medical health monitoring and disease diagnosis.

关键词： Wearable electronics Web-droplet structure Semi-liquid metal High permeability Strong adhesion Long-term monitoring

代词的形态句法特征在汉语话题回指中的作用——基于多项指标的汇流证据

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现代外语 2021年第6期44卷 742-753页

作者：姜承杰徐晓东南京师范大学南京师范大学外国语学院江苏省南京市210097

代词的回指解读是语言学研究中的热点议题,但现有研究往往更侧重于先行语和先行语所在的小句。代词作为被加工的主体,其本身的形态句法特征如何对回指产生影响,获得的关注却相对较少。本研究以汉语话题结构为研究对象,通过语料库研究、... 详细信息

代词的回指解读是语言学研究中的热点议题,但现有研究往往更侧重于先行语和先行语所在的小句。代词作为被加工的主体,其本身的形态句法特征如何对回指产生影响,获得的关注却相对较少。本研究以汉语话题结构为研究对象,通过语料库研究、可接受度测试和自定义步速阅读实验,分别从语言产出和理解两个维度,考察了代词的回指形式(显性vs.零形回指)和语法角色(主vs.宾语)在汉语话题回指中的作用,以及上述作用如何受到先行语生命性(生命体vs.非生命体)的制约。结果显示,先行语生命性能分别对代词回指形式的选择和语法角色的指派产生制约:先行语为非生命体时,对应的代词更倾向于以零形出现,且更倾向于充当宾语。本研究采用实验的方法验证了生命性在汉语回指加工中的重要作用,也证实了汉语回指解读受到代词本身形态句法特征的影响,为研究回指提供了新的证据。

关键词：汉语话题结构回指解读回指形式语法角色生命性