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991.
992.
Tetsuo Otani Michifumi Miyashita Masahiro Kurono Yuji Ishihara Tatsuji Tanaka Takashi Nakajima 《Electronics and Communications in Japan》2019,102(2):21-29
Maintenance support systems (MSS) monitoring conditions of facilities are indispensable for condition‐based maintenance. A sensor network is used to acquire maintenance data in the MSS, and installation of the sensor network should be simple and easy to execute maintenance tasks in a cost‐effective way. Therefore, this report sets a proposal of an autonomous configuration function of the systems that makes the installation simple and easy. This function is composed of wireless sensor networks, plug‐and‐play function configuring software modules, and cooperative procedure between them. This paper also shows evaluations of the proposed function that is feasible for practical maintenance work. The evaluations have been carried out using a prototype system implementing the elements of the proposed function. 相似文献
993.
Akira Morita Keiichi Honma Yasuhiro Watanabe Misaki Nakamura Tetsuo Yamashita 《JAPAN ARCHITECTURAL REVIEW》2020,3(1):77-89
When The Great East Japan Earthquake of 2011 occurred, long‐span structures such as gymnasium with long‐span steel ceiling supported by RC columns was damaged as the bearings, which connected the steel roof column and the RC columns, were damaged. In this study, two effective improvements to prevent the pull‐out of anchor bolts and crushing of base mortar are proposed. The first improvement is to add disk springs between the base plate and anchor bolt nuts, which prevents the pull‐out of anchor bolts. In the second improvement, an elastic rubber plate is inserted between the base plate and mortar to avoid mortar crushing. Based on test results, an evaluation method for rotational stiffness is proposed, which can be calculated from the stiffness corresponding to the pre‐stressed force, disk spring, anchor bolts, and rotational spring constant of the rubber. 相似文献
994.
Nobuhito Ohtsu Akihiko Hokugo Abel Titi Konno Pinheiro Jihyang Lee 《JAPAN ARCHITECTURAL REVIEW》2020,3(2):218-230
This study aims to analyze and compare the transportation feasibility of the following three tsunami evacuation support devices that carry vulnerable persons: (A) a rollator, (B) a transport chair, and (C) a wheelchair. Each of these supports was examined for its feasibility during transit along a steep slope, gentle slope, and flat land. The results indicated that the rollator was the most feasible tool, followed by the transport chair and the wheelchair; however, having the assistance of support personnel enabled the victims to flee faster and more effectively. Furthermore, the findings indicate that although wheelchairs are the most effective in evacuating vulnerable persons, all the studied tools can provide assistance. 相似文献
995.
本文以支承HDD主轴的自密封滑动轴承为对象,通过一个简化模型研究了因热膨胀导致的润滑液泄漏问题。分析表明,轴承的存油空间（包括间隙、油孔、油槽等）的容积膨胀率αT与润滑液的体膨胀系数αoil不匹配是造成温度变化时润滑液泄漏的重要原因。为减少泄漏,一方面应选用低膨胀液体作为润滑剂,另一方面应通过轴承设计以控制存油空间的膨胀率。控制αT的措施包括：（1）以线膨胀系数不同的材料制作滑动轴承摩擦副的不同零件（如轴套和外圈）;（2）根据轴承尺寸及材料、润滑液类型确定适当的轴承间隙比;（3）尽可能减少不油孔、油槽等除轴承间隙之外的存油空间。 相似文献
996.
Kizuku Ohwada Takumi Konno Takayuki Kohno Masaya Nakano Tsuyoshi Ohkuni Ryo Miyata Takuya Kakuki Masuo Kondoh Kenichi Takano Takashi Kojima 《International journal of molecular sciences》2021,22(16)
The airway epithelium of the human nasal mucosa acts as a physical barrier that protects against inhaled substances and pathogens via bicellular and tricellular tight junctions (bTJs and tTJs) including claudins, angulin-1/LSR and tricellulin. High mobility group box-1 (HMGB1) increased by TGF-β1 is involved in the induction of nasal inflammation and injury in patients with allergic rhinitis, chronic rhinosinusitis, and eosinophilic chronic rhinosinusitis. However, the detailed mechanisms by which this occurs remain unknown. In the present study, to investigate how HMGB1 affects the barrier of normal human nasal epithelial cells, 2D and 2.5D Matrigel culture of primary cultured human nasal epithelial cells were pretreated with TGF-β type I receptor kinase inhibitor EW-7197 before treatment with HMGB1. Knockdown of angulin-1/LSR downregulated the epithelial barrier. Treatment with EW-7197 decreased angulin-1/LSR and concentrated the expression at tTJs from bTJs and increased the epithelial barrier. Treatment with a binder to angulin-1/LSR angubindin-1 decreased angulin-1/LSR and the epithelial barrier. Treatment with HMGB1 decreased angulin-1/LSR and the epithelial barrier. In 2.5D Matrigel culture, treatment with HMGB1 induced permeability of FITC-dextran (FD-4) into the lumen. Pretreatment with EW-7197 prevented the effects of HMGB1. HMGB1 disrupted the angulin-1/LSR-dependent epithelial permeability barriers of HNECs via TGF-β signaling in HNECs. 相似文献
997.
998.
Soo-Hyun Joo Jae Wung Bae Won-Young Park Yusuke Shimada Takeshi Wada Hyoung Seop Kim Akira Takeuchi Toyohiko J. Konno Hidemi Kato Ilya V. Okulov 《Advanced materials (Deerfield Beach, Fla.)》2020,32(6):1906160
Controlling the feature sizes of 3D bicontinuous nanoporous (3DNP) materials is essential for their advanced applications in catalysis, sensing, energy systems, etc., requiring high specific surface area. However, the intrinsic coarsening of nanoporous materials naturally reduces their surface energy leading to the deterioration of physical properties over time, even at ambient temperatures. A novel 3DNP material beating the universal relationship of thermal coarsening is reported via high-entropy alloy (HEA) design. In newly developed TiVNbMoTa 3DNP HEAs, the nanoporous structure is constructed by very fine nanoscale ligaments of a solid-solution phase due to enhanced phase stability by maximizing the configuration entropy and suppressed surface diffusion. The smallest size of 3DNP HEA synthesized at 873 K is about 10 nm, which is one order of magnitude smaller than that of conventional porous materials. More importantly, the yield strength of ligament in 3DNP HEA approaches its theoretical strength of G/2π of the corresponding HEA alloy even after thermal exposure. This finding signifies the key benefit of high-entropy design in nanoporous materials—exceptional stability of size-related physical properties. This high-entropy strategy should thus open new opportunities for developing ultrastable nanomaterials against its environment. 相似文献
999.
我国已建立以颁发"两证一书"为主要内容的开发控制体系,既往研究指出现有开发控制体系存在制度约束力不足、行政人员罔置规划和随意调整规划指标等问题。但是,这些研究主要采用理论辨析、经验总结和个案分析方法,其研究结果是否能够反映现有开发控制体系的整体运行效果仍值得质疑。本文以制度主义"结构—参与者"模型为基本分析框架,以北京市朝阳区住宅开发项目为例,通过定量分析得出现有开发控制体系中,房地产开发企业所拥有的政治和经济资源会影响其获取住宅用地的开发权,但对开发过程中规划指标调整的作用并不明显,与住宅项目"两证一书"审批过程确定性相关的主要因素为土地出让方式、单位面积土地出让金和颁发项目选址意见书与用地规划许可证的间隔时间。 相似文献
1000.
This paper describes a decision model for an autonomous agent that provides an inhabitant with comfort based on information
network technologies that connect home electric appliances with household equipment. The inhabitant enjoys the benefit of
comfort, while he pays the cost for keeping that comfort. The autonomous agent should decide and control household equipment
considering that cost from the inhabitant’s viewpoint. Thus, we utilized a representation scheme called an “influence diagram”
that enabled us to model the decision-making process of the agent from the inhabitant’s point of view. First, decision modeling
using the influence diagram is presented via an example. The presented model consists of three information-processing modules:
a module for estimating the situation of an inhabitant based on information from home networks, a module for evaluating comfort
of the inhabitant, and a module for making decisions that maximize the utility of the inhabitant from both the viewpoints
of comfort and the cost paid for that comfort. Next, an experiment for verifying whether the presented model is effective
or not, and its results are described. Finally, our model of the agent is discussed in relation to social intelligence design
by investigating the interactive processes between the agent and the inhabitant. 相似文献