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关键词： 微塑料   纺织品   检测标准  

摘要： 微塑料作为新型环境污染物已对全球生态安全和人类健康构成重大威胁。纺织品,尤其是合成纤维,是微塑料污染的主要来源之一。系统梳理了纺织品中微塑料的存在情况,其对人类健康的潜在影响,以及不同国家采用的检测标准。通过综合最新研究发现并对国际标准进行比较分析,通过整合多学科交叉研究成果,提出纺织品微塑料污染防控的标准化框架,为行业绿色转型提供科学依据。

关键词： 观影   中国轮胎循环利用协会党支部   主题党日活动   得闲谨制  

摘要： 为深入推进党史学习教育常态化,丰富主题党日活动形式,2026年1月23日,中国轮胎循环利用协会党支部组织全体党员、入党积极分子集中观看抗战题材影片《得闲谨制》,以光影为媒,上了一堂生动的党性教育课。

关键词： 圆机织物   横档   疵点   染整   原料  

摘要： 横档是针织物的典型疵点之一,严重影响织物质量。圆机织物布面横档的成因复杂,分析与判断难度较大。对圆机针织品横条缺陷的表现、影响、成因以及防治对策等进行深入研究。旨在深入理解和掌握针织横条缺陷的形成机理和掌握检测手段,这对于各个生产环节的质量控制管理极为重要,能有效减少横条缺陷布料的生成,预防不必要的经济损失。

关键词： natural biomass   polysaccharide   flexible wearable devices   smart textiles  

摘要： Driven by rapid advancements in science and technology,public demand for textiles is undergoing a notable shift—moving beyond traditional fundamental functions such as warmth and aesthetics towards intelligent and functional *** biomass-derived polysaccharides are identified as critical materials for next-gen flexible wearable smart textiles due to their biocompatibility,biodegradability,renewability,and unique chemical ***,this review presents an overview of some common natural biomass-derived polysaccharide materials for preparing flexible wearable smart *** also introduces the basic structural features of common natural biomass-derived polysaccharides and discusses relevant modification ***,current preparation methods of natural biomass-derived polysaccharide materials for flexible wearable smart textiles are systematically summarized,and an in-depth exploration is carried out to dissect their respective advantages and inherent *** review also summarizes the performance characteristics,action mechanisms,and applicable scenarios of flexible wearable smart textiles based on natural polysaccharide ***,it discusses and analyzes the applications of flexible wearable smart textiles based on natural polysaccharide materials in healthcare,motion tracking,smart clothing,and energy storage and ***,existing challenges and potential directions in the field of natural polysaccharide materials-integrated smart textile systems are comprehensively summarized and ***,such insights are expected to steer the development of more efficient green flexible wearable devices based on these smart textiles.

关键词： 透气性   纺织品检测   能力验证   标准  

摘要： 通过验证纺织品透气性检测的能力,了解实验室对GB/T 5453—1997《纺织品织物透气性的测定》标准的理解和掌握程度。拟订作业指导书并评价样品的均匀性及稳定性,采用经典统计方法分析并确定指定值和能力评定标准差。结果显示:能力验证样品可满足均匀性和稳定性要求,参加实验室共33家,结果满意30家,不满意3家。不满意实验室对于标准理解和设备操作的掌握不足,须做好分析及整改,提升能力水平。

关键词： CABG   coronary   mortality   race   sex   trend   CABG   coronary artery bypass grafting   CAD   coronary artery disease   DCI   Distressed Communities Index   LOS   length of stay   OR   odds ratio   PROM   Predicted Risk of Mortality   STS   Society of Thoracic Surgeons  

摘要： Despite declining mortality after coronary artery bypass grafting, it is unclear if Black or female patients similarly benefit. We hypothesized differences in outcomes persist and disproportionately affect Black women.

关键词： Endocrown   CAD-CAM   3D printing   Fracture resistance  

摘要： Introduction This study aimed to compare the fracture resistance of leucite reinforced glass ceramic (LRC), resin nanoceramic (RNC), lithium disilicate ceramic (LDS) blocks, and printable resin (PRM) used in the production of ferrulated and non-ferrulated endocrowns for mandibular molars. Methods A total of 108 extracted mandibular molars with homogeneous dimensions and free of fractures, cracks, or caries were included. Root canal treatment was performed using the ProTaper Next rotary file system, and canals were obturated with gutta-percha and epoxy resin sealer by the lateral compaction technique. Specimens were divided into ferrule (F;1-mm ferrule height), non-ferrule (NF), and control groups. Digital impressions were obtained with an intraoral scanner (Cerec Primescan), and restorations were designed in CAD software (inLab CAD SW 22.4). Based on restorative materials, groups were classified as follows: LRC, RNC, LDS, and PRM for both F and NF groups, in addition to a control group of intact teeth. Restorations were fabricated either by milling (LRC, RNC, LDS) or 3D printing (PRM), and surface conditioning was performed according to manufacturers' instructions. All restorations were cemented using a universal adhesive system and dual-cure resin *** resistance was tested in a universal testing machine (Instron, USA) at a crosshead speed of 1 mm/min until fracture occurred, and failure modes were classified as Type I (restoration fracture), Type II (restorable fracture involving tooth and restoration), or Type III (non-restorable fracture of tooth structure). Statistical analyses were performed using SPSS v23, with significance set at P < .05. Results Fracture resistance values varied significantly among restorative materials (P < .05);intact teeth exhibited the highest resistance, while LRC restorations showed the lowest. PRM, RNC, and LDS restorations demonstrated significantly higher resistance than LRC, and all endocrown groups exceeded maximum mas

关键词： Dissection   Stroke   Risk Factors  

关键词： 3D printing   bonding   CAD/CAM   denture base   denture tooth   milling  

摘要： Objective: This in-vitro study examined the bond between denture teeth (milled, printed, and prefabricated) and milled, printed, and autopolymerized denture bases. Method and materials: In total, 88 specimens (11 groups, n = 8 per group) of denture teeth and denture base resins were fabricated using systems of three different manufacturers (Vita Zahnfabrik, Ivoclar Vivadent, and Formlabs). The groups consisted of combinations of six different teeth, five different denture base materials, and four different adhesive bonding options. Teeth were either printed, milled, or prefabricated, while denture bases were either conventionally polymerized, milled, or printed. In addition, two dentures were milled from industrially pre-polymerized blocks. After 24 hours of storage in distilled water, all specimens were loaded to failure to determine fracture forces. The fracture pattern was classified according to adhesive, cohesive, and mixed failures. Statistical analysis was performed using one-way analysis of variance and the Bonferroni test for post-hoc analysis. The level of significance (a) was set to .05. Results: Mean fracture forces ranged between 34.6 N and 649.3 N. The monobloc dentures Formlabs (459.0 +/- 82.5 N) and Ivoclar (649.3 +/- 32.3 N) featured the significantly highest fracture forces (P < .001). For adhesively luted teeth, the conventional base-conventional tooth group showed the highest bond strength (289.5 +/- 44.3 N), while the printed base-printed tooth group had the lowest (34.6 +/- 12.7 N). The milled base group showed intermediate values (236.5 +/- 56.4 N). Conclusion: Bond strength between denture teeth and denture base depends on the fabrication process. Monolithic systems demonstrated optimal bond strength. Among all other combinations, the conventionally polymerized denture base combined with prefabricated teeth showed the best results. Prefabricated teeth and milled teeth in combination with milled denture bases showed similarly good results. Pri

关键词： Dissection   Aneurysms   Stroke