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摘要： Digital workflows integrating computer-aided design and computer-aided manufacturing (CAD-CAM) have improved precision in implant-supported prostheses. This article describes a step-by-step technique for guided mandibular implant placement and the CAD-CAM fabrication of a patient-specific titanium bar based on cone beam computed tomography (CBCT) segmentation, anatomic reconstruction, and a functional digital waxing. The workflow combines prosthetically driven planning with anatomic reference alignment to enhance bar adaptation and prosthetic accuracy. The digital sequence allows clinicians and dental laboratory technicians to virtually design and verify the bar on a 3-dimensionally printed mandibular model before clinical application, minimizing chairside adjustments and improving interdisciplinary communication when providing complex complete arch implant-supported prostheses.

关键词： 动画场景   色彩体系   家用纺织品   面料设计  

摘要： 动画艺术是数字时代典型的视觉文化形态,其场景色彩体系需经专业化艺术加工,才能形成自洽的色彩叙事逻辑与独特的情感表达风格。家用纺织品作为居住空间中承载情感功能的软装节点,若面料设计长期陷入同质化困境,往往难以满足消费者的多元需求。本文提出将光影织造理念融入家纺面料设计过程,探索动画场景色彩体系在家纺设计中的转译路径,构建包含光谱对应法、肌理转译法、层次重构法、情感映射法的完整应用框架,以期为家纺设计提供丰富参考。

关键词： Full-arch implant prosthesis   digital workflow   CAD   multi-source data integration   precision matching   time efficiency  

摘要： In contemporary dental laboratories, leveraging advanced digital technologies is transforming the production of full-arch implant prostheses.

关键词： 共轭凸轮   MATLAB程序   参数化   快速设计  

摘要： 为了实现凸轮的参数化设计,以共轭凸轮为例,将凸轮轮廓曲线设计方法集成在MATLAB程序中,通过将常用的凸轮机构搭建成为独立的运动模块,针对不同的模块编写相关的凸轮参数化设计程序,根据不同的设计相位要求,仅需修改模块中的相关参数,即可快速设计出新的凸轮。最后根据MATLAB软件产生的参数,利用Parametric 2.0软件建立了凸轮机构的三维模型,并对其进行运动学仿真,验证了凸轮设计的正确性。

关键词： Delirium   Intensive care units   Nursing   Sensitivity and specificity   Clinical assessment tools  

摘要： Analizar la concordancia entre las escalas NU-DESC y CAM-ICU en la detección de delirio hiperactivo e hipoactivo en pacientes adultos de un hospital de tercer nivel, validando la hipótesis de concordancia significativa (HA).

关键词： 肺血管发育畸形   异常体循环动脉供血正常肺组织   肺隔离症   介入治疗  

摘要： 异常体循环动脉供血肺组织是一种少见的先天性肺部血管发育畸形的疾病。在1946年Pryce[1]首次提出根据供血动脉与隔离肺组织的关系将其分为3种类型:Ⅰ型为异常动脉供血正常肺组织,无隔离肺组织;Ⅱ型为异常动脉供应隔离肺组织及部分周围正常肺组织;Ⅲ型为异常动脉仅供应隔离的肺组织。其中Ⅰ型最为罕见,主要表现为只有异常体循环动脉供血,无隔离肺,相应肺组织具有正常支气管肺解剖结构和肺功能,又称为肺功能正常的肺异常体循环动脉供血或异常体循环动脉供血正常肺组织[2-4]。

关键词： 户外功能性纺织品   行业发展状况   核心挑战   发展建议  

摘要： 户外功能性纺织品能够有效隔绝户外环境对人体的不良影响,在适配户外复杂环境方面具有独特的优势,受到了广大户外运动爱好者青睐。文章围绕户外功能性纺织品的技术研发、产业发展及市场应用状况,剖析其在发展过程中所面临的挑战,并结合户外功能性纺织品的行业发展趋势提出了针对性建议,以期为该领域的可持续发展提供参考。

关键词： CAD/CAM   Short fiber composites   Hardness   Sorption   Solubility   Acidity  

摘要： This study investigates hardness and mass changes, sorption, and solubility of CAD/CAM resin composites reinforced with short fibers, woven fibers, or filler particles after storage in three buffer solutions for up to 60 days. Plate-shaped specimens were prepared from three resin composite blocks: the experimental short-fiber-reinforced composite (SFRC), TRINIA (TR), and Lava Ultimate (LU). For sorption and solubility measurements, specimens were immersed in three buffer solutions (pH 4, 7, and 10) for 60 days, weighed at intervals, then dried for a further 90 days at 37 +/- 1 degrees C. Measurements included Vickers hardness and mass changes over 1, 7, 30, and 60 days of storage and SEM images. SFRC and LU were significantly harder than TR (p = 0.001). The average percentage hardness decrease after 60 days of immersion was comparable across the three materials (overall range: 26.8-32.88%), regardless of the acidity of the solution. SFRC showed minimal decreases in hardness and mass change across the study groups. The solubility range was between - 1.0 and 1.7 mu g/mm. LU exhibited the highest sorption (p = 0.001). The experimental short fiber-reinforced composite (SFRC) exhibited relatively favorable outcomes more than the nanoceramic resin composite (LU) and greater stability than the woven fiber-reinforced composite (TR) after storage in aggressive acidic solutions over 60 days. The experimental short fiber-reinforced CAD/CAM resin composite exhibited relative mechanical stability among the studied materials and aging conditions. Generally, the studied materials were most greatly affected by alkaline storage compared to the other two buffer solutions.

关键词： 纺织品   磷系阻燃剂   检测技术   热裂解-气相色谱-质谱法  

摘要： 阐述了纺织品中磷系阻燃剂的应用背景及开展检测工作的必要性,综述了当前主要的检测技术。重点分析了热裂解-气相色谱-质谱法(Py-GC/MS)的技术特点。该方法无需化学试剂萃取,显著简化了样品前处理流程,兼具快速性与环保性,被视为磷系阻燃剂检测技术的重要发展方向。

关键词： 空间凸轮   NURBS   凸轮曲线   权因子   多目标优化  

摘要： [目的]针对现有凸轮曲线在不同工况下综合性能表现不足的问题,提出采用非均匀有理B样条(Non-UniformRationalB-Spline,NURBS)曲线表示凸轮曲线。[方法]首先,基于多目标优化理论,协调不同特性值之间的影响,构建基于权重分配的归一化评价函数作为优化方法;然后,将权因子和控制点作为优化变量,以修正正弦(ModifiedSine,MS)曲线的特性值为参考值进行优化,并将结果与MS曲线进行对比分析。[结果]结果表明,采用多目标优化的NURBS凸轮曲线的综合性能优于MS曲线,验证了所提评价及优化方法的有效性。