加气混凝土砌块在建筑中的应用     

左军 《森林工程》2004,20(6):65-66

蒸压加气混凝土是一种新型的节能、环保墙体材料 ,它在基本建设中运用具有良好的综合经济效益和社会效益。这里以加气混凝土在建筑中的应用实例 ,从材料、施工、抹灰及存在的问题等方面论述了它的运用情况 ,可供有关设计和施工人员参考。  相似文献   

轻型木结构建筑覆板的集中静载性能   总被引：2，自引：1，他引：1  

王戈  费本华  林利民  唐伟  徐兰英 《木材工业》2005,19(4):9-11

介绍轻型木结构建筑覆板集中静载结构性能试验的装置、条件和方法,并进行国产人工林落叶松胶合板作轻型木结构覆板的集中静载性能研究.结果表明:与国外胶合板覆板具有相同厚度的国产落叶松屋面板和楼面板,其集中载荷性能均优于相关标准的要求.  相似文献   

木瓜剖分原理研究及新机型设计     

王晓光  彭斌  陈宏  陈明森 《农机化研究》2009,31(1)

针对我国目前对木瓜剖半设备研究较少,剖切方式不合理,切割效果差等问题,设计开发了新型木瓜剖半机。该机切割方式选用滑切切割的方式,由运料系统、切割系统、出料系统组成,设计合理,结构简单。为此,计算了滑切角、切割角等主要切割参数,并给出了新型剖半机的主要技术参数。试验表明:该机切割效果好,能够有效提高生产效率。  相似文献   

确定插齿刀廓形的方法及精度分析   总被引：1，自引：0，他引：1  

赵敬云  徐珂 《拖拉机与农用运输车》2006,33(6):90-91,96

论述了由插齿刀前锥面和螺旋面方程确定的母面廓形,提出了保证插齿刀原始廓形角的3个条件,由此推出了计算廓形角的3种方法,得出了廓形角及基圆半径的计算公式,然后对3种方法的误差进行分析,计算表明第3种方法误差较小,是一种较好方法。  相似文献   

轻钢结构抗震节能体系在“塞上农民新居”中的应用     

刘蕙兰  张建中 《安徽农业科学》2011,39(36):22457-22460

针对宁夏地区农民传统住宅抗震性差，建筑外围护结构保温性能差，采暖系统能源消耗量大，环境污染严重等问题，提出采用轻钢结构配以轻质保温板材的轻钢结构抗震节能体系，以期为宁夏农村住宅设计提供指导性建议。  相似文献   

棕床垫的创新设计与实践     

李扬  陈臻 《林产工业》2016,(8):37-39

将棕绷结构与弹簧结合,组成棕纤维床垫的中心缓冲层,再用不同的结构和材料形成多种类型的棕床垫。将这一创新设计应用于实践,生产出的产品得到市场的认可和欢迎,但受到规模量产的限制。  相似文献   

Evaluation of Dynamic Structural Disorders in the Upper Airways and Applied Rein Tension in Healthy Dressage Horses During Riding in Different Gaits and Head–Neck Positions     

《Journal of Equine Veterinary Science》2020

Flexion of the horse’s head and neck during dressage riding reduces the pharyngeal lumen with the risk of increased upper airway resistance and upper airway obstructions. According to the Fédération Equestre Internationale, hyperflexion is achieved through force, whereas the position low–deep–round is nonforced. The objectives of this study were to evaluate (1) applied rein tension and (2) dynamic structural disorders in the upper airways in dressage horses in different gaits and different head–neck positions (HNPs). Overground endoscopy (OGE) and rein tension were evaluated in 13 clinically healthy and high-performance Warmblood dressage horses while being ridden in a standardized program comprised of four different gaits (halt, walk, trot, and canter) and in four HNPs (unrestrained, competition frame, hyperflexion, and low–deep–round). All included horses were able to achieve the desired HNPs. The HNP low–deep–round showed significantly lower rein tension than competition frame (P < .001) and hyperflexion (P < .001). An association was found between dynamic structural disorders in the upper airway tract evaluated by OGE and head–neck flexion, but this association was not linked to the degree of flexion. The HNP hyperflexion was neither associated with greater rein tension nor severe dynamic structural disorders than the HNP competition frame. This study confirms that low–deep–round is a nonforced position, in contrast to hyperflexion. Further studies are needed to evaluate whether dynamic structural disorders are a result of flexion or if the degree of flexion has an impact.  相似文献   

单圆盘甘蔗切割器运动学仿真   总被引：1，自引：0，他引：1  

赵冰  陈国晶  袁长胜 《农业装备技术》2006,32(1):45-46

利用机械动力学仿真分析软件ADAMS对甘蔗切割器刀片刀刃上的单点运动轨迹进行了仿真分析研究,根据甘蔗收割机样机切割器的实际尺寸建立了甘蔗切割器的虚拟模型,并在此基础上进行分析,得出了刀片刀刃上单点的空间运动轨迹及其主视图、俯视图、侧视图。  相似文献   

INTERCONNERCTION BETWEEN SUPER-MINICOMPUTER ETHERNT E     

Li Hua Wu Zhongfu Chen Dazhi 《保鲜与加工》1989,(2):35-42

  相似文献   

Analysis of Application of Information in Mid - mini Enterprises on Condition of Mass- economy     

Liu GongPing  Tang Min 《保鲜与加工》2005,(3):116-119

The group of Mid - mini enterprises under mass - economy is the intermediate organization built up by specialized division of work and cooperation. This kind of organization is flexible in operation with high efficiency, but difficult in development of new technology. On the basis of analyzing the character and deficiency of the mid - mini enterprises, in this paper, through providing a framework of information service platform for the mid - mini enterprises to enhance their creative ability and complex competition. The construction and operational strategy of such platform are investigated. Finally a successful case study is given.  相似文献