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关键词： 纺织品   超疏水   耐久性  

摘要： 超疏水纺织品在服用及产业用等多个领域具有广阔的应用前景,但其在使用过程中存在耐磨、耐水洗、稳定性差等问题,严重阻碍其市场化应用。纺织品超疏水整理耐久性差,主要与其微观粗糙结构和低表面能物质的机械、化学稳定性差相关。目前,提高其耐久性的途径主要有3种,即提高超疏水层与织物之间的黏结强度、构筑分级粗糙结构抵御机械破坏、使用自修复性材料修复低表面能物质及结构损伤。对近几年纺织品超疏水整理耐久性能的研究进展进行了总结与展望。

关键词： coronary artery disease   proteomics   tumor necrosis factor receptor   CAD   coronary artery disease   DAVID   Database for Annotation, Visualization, and Integrated Discovery   GO   Gene Ontology   HDL   high-density lipoprotein   KEGG   Kyoto Encyclopedia of Genes and Genomes   MI   myocardial infarction   PPP   Pharma Proteomics Project   TNF   tumor necrosis factor   TNFR   tumor necrosis factor receptor   TNFRSF   tumor necrosis factor receptor superfamily   UKB   UK Biobank  

摘要： Despite optimization with lifestyle modifications and medications, complications of coronary artery disease (CAD) remain the leading cause of adult mortality worldwide.

关键词： CAM   CLIP   Image-level labels   WSSS  

摘要： Weakly supervised semantic segmentation (WSSS) using image-level labels aims to create pseudo-labels leveraging Class Activation Maps (CAM) to train a separate segmentation model. Recent methods that utilize Contrastive Language-Image Pre-training (CLIP) models have achieved significant advancements. These approaches take advantage of CLIP’s capability to identify various categories without requiring additional training. However, due to the limited local information of the final embedding layer, the CAM generated by the CLIP model is still a rough region with an under-activated or over-activated issue. Furthermore, the abundant multi-layer information of CLIP, which plays a vital role in dense prediction, has been ignored. In this paper, we proposed a LayerCLIP model for a fine-grained CAM generation via hierarchical features, which consists of two consecutive components: a dynamic hierarchical CAMs module and an adaptive affinity module. Specifically, the dynamic hierarchical CAMs module utilizes the hierarchical features to produce two complementary CAMs, along with a dynamic strategy to fuse these CAMs. Subsequently, the affinity based on multi-head self-attention is adaptively reweighted to refine CAM by the CAM itself in the adaptive affinity module. LayerCLIP significantly enhances the quality of CAM. Our method achieves a new state-of-the-art performance on PASCAL VOC 2012 (75.1 % mIoU) and MS COCO 2014 (46.9 % mIoU) through extensive benchmark experiments.

关键词： 宝石   纺织品   1919年   西域   研究   金属   矿物   波斯  

摘要： 古代中国与波斯的关系,对中国历史和人民生活有着广泛而深远的影响。先说说流入中国的波斯物产,或经波斯流入中国的西域其他地区物产。1919年美国东方学者劳费尔所著《中国伊朗篇》探讨的由波斯传到中国的栽培植物就达50余种,矿物、金属和宝石有十余种,纺织品若干种,中国传到波斯的物品有20余种。100多年来,这方面的研究取得了更多进展。可以看到,传入中国的波斯物产或经波斯传入中国的西域其他地区物产非常丰富,任何简单的介绍都会挂一漏万,因此仅举生活中常见的若干事物为例。

关键词： 2025年   产业用纺织品   经济运行  

摘要： 2025年,全球经济在关税冲击持续、贸易政策不确定性较高、保护主义措施不断升级、地缘政治紧张加剧等多重压力交织下,呈现出“脆弱韧性”的运行特征。我国经济面对国内外经济环境的复杂变化,展现出稳中有进的态势、向新向优的活力和顶压前行的韧性,呈现“总量向上、动能向新”的特征。我国产业用纺织品行业积极应对复杂的外部环境和激烈的行业内卷,加快转型升级步伐,继续保持了良好的发展态势。

关键词： arthroscopy   hemiarthroplasty   prosthesis   primary   glenohumeral   arthrosis   CAM  

摘要：

• Glenohumeral osteoarthritis (OA) is a disabling disease that leads to poor shoulder function and pain. Primary or idiopathic osteoarthritis occurs in previously intact joints without any inciting agent. Its precise incidence is not known. If conservative treatment fails, there are a variety of surgical procedures described in the literature.
• Total shoulder arthroplasty (TSA) is primarily indicated in patients above 60 years old with symptomatic glenohumeral OA and intact rotator cuff and failed conservative treatment. However, it is rarely recommended to young or active patients under the age of 50 due to its increased morbidity, limited lifespan, potential for revision surgeries, and difficulty achieving the same preoperative activity level, particularly in patients with high preoperative level of activity.
• Comprehensive arthroscopic management (CAM), hemiarthroplasty (HA), and TSA provide good results even in the long term for treatment of primary OA in properly selected young patients.
• A CAM procedure seems to be a reasonable option in case of conservative treatment failure, localized cartilage defect, tendinopathy of the long head of the biceps, stiffness, inferior osteophytes, and humeral head congruity.
• 跨境电商发展水平对中国省域纺织品出口贸易的影响研究

  赵青松 张红静 

  新疆财经大学国际经贸学院 830012

  来源 超星期刊 中国基础教育期刊库 中国学术期刊网络出版... 详细信息

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  • 超星期刊
  • 中国基础教育期刊库
  • 中国学术期刊网络出版总库

  关键词： 跨境电商   纺织品出口   省域   主成分分析   贸易引力模型  

  摘要： 跨境电商已成为推动中国纺织品出口的重要引擎。为进一步丰富相关研究视角并填补对中国省域纺织品出口受跨境电商发展影响的实证研究不足,文章基于2014—2023年中国31个省份面板数据,构建跨境电商发展水平指标体系,采用主成分分析法实证分析跨境电商发展水平对中国各地区纺织品出口贸易的影响。研究表明,跨境电商发展水平显著促进我国各地区纺织品出口贸易的增长,主要通过降低贸易成本与提升供应链响应能力来促进纺织品出口,该结论通过了稳健性检验;进一步的异质性分析表明,我国东部和西部省份的跨境电商发展水平对本地区纺织品出口的促进作用更强。为此,中国各地区应实施差异化的跨境电商发展策略,推动纺织产业数字化转型、加快纺织产业绿色化发展、建立复合型跨境电商人才培养体系。

关键词： 喷气织机   引纬   喷嘴   人机交互   梯形图   PLC   仿真   断头率  

摘要： 为了适应喷气织造系统的高精度工作要求,通过喷气引纬系统构成、工作原理分析与梯形图程序设计,开发基于TIA Portal V18组态软件的人机交互界面(HMI),同时结合西门子S7-1200 PLC模块和喷气引纬关键参数,对重要工艺环节、过程监控及故障处理等进行仿真。结果表明:该喷气引纬控制系统HMI可实现对主喷嘴、辅喷嘴、储纬器、探纬器、剪刀及故障处理等关键环节的联合仿真与实时监控,可有效提升喷气引纬控制系统的精确性与稳定性,以及现代喷气织机的生产管理水平。

关键词： Peg-shaped maxillary lateral incisors   Microdontia   Lithium disilicate ceramics   Minimally-invasive dental restorations   Digital dentistry   Computer-aided design/computer-assisted manufacturing (CAD/CAM)   Survival   Complications   CAD   computer-aided-design   CDA   California Dental association   CAD/CAM   computer-aided design/computer-assisted manufacturing   3D   three-dimensionally   CI   confidence interval  

摘要： To evaluate the medium-term clinical performance of digitally planned and fabricated minimally invasive lithium disilicate restorations veneered with feldspathic porcelain for the treatment of peg-shaped maxillary lateral incisors.

关键词： 废旧纺织品   智能分拣技术   近红外光谱   拉曼光谱   机器视觉   高光谱成像  

摘要： 随着全球纺织品消费量的不断增长,废旧纺织品的产生量也日益增多,对环境和资源造成了巨大压力。废旧纺织品的回收再利用成为解决这一问题的关键环节。智能分拣技术作为废旧纺织品回收利用过程中的重要组成部分,其发展水平直接关系到整个回收利用系统的效率和效益。综述了近年来废旧纺织品智能分拣技术的研究进展,重点介绍了近红外光谱识别、拉曼光谱识别、机器视觉识别及高光谱成像识别等主要智能分拣方法的原理、特点以及研究现状,对比了不同分拣方式在鉴别准确率、工作环境和识别速度等方面的优势和劣势,以期为我国废旧纺织品的高效回收及循环化利用提供参考。