Simulation on position control of the Space Gravitational Wave Telescope DECIGO satellite

DECIGO (DECi-hertz Interferometer Gravitational wave Observatory) is a space gravitational wave antenna planned in Japan for the detection of gravitational waves in the 0.1-10 Hz frequency range.DECIGO\u27s key technologies are Formation Flight Control and Drag Free Control. These technologies enable DECIGO to counteract the effects of disturbances such as solar wind and solar radiation pressure. However, it is not possible to achieve all degrees of freedom on the ground. In this paper, simulations are performed to study the feasibility of thesontrols

GRAPH STRUCTURING FOR CORPORATE BUSINESS DOCUMENTS AND FEATURE WORD EXTRACTION FROM THE GRAPH USING GRAPH CONVOLUTIONAL NETWORKS

This study proposes a graph structuring and feature word extraction method for business information documents extracted from corporate websites for corporate and market trend research. The graphs created from business documents consist of a hierarchical structure graph reflecting the relationship between businesses and companies, and a dependency graph using the dependency relations of business documents. For feature word extraction, RGCNs were used for the dependency graph, and the F value was 0.33 for the business document graph consisting of a single company, and 0.37 for the business document graph consisting of multiple companies in a single industry

NECESSITY OF USING THE CONVERSION LENGTH DETERMINED BY THE FDTD-CW ANALYSIS IN THE DESIGN OF A WAVEGUIDE-TYPE POLARIZATION CONVERTER

A simple method for evaluating a waveguide-type polarization converter with an asymmetric cross-section has been studied with an emphasis on the conversion length. We introduce the conversion length L_c1 obtained with the FDTD-CW analysis instead of the conventional length L_c determined by the eigenmode analysis. We show the characteristics of L_c1/L_c as a function of wavelength and defect ratio. Two models are investigated, i.e., a completely buried type and a model loaded on a Si substrate. It is found that the introduction of L_c1 allows highly accurate evaluation of the wavelength response in terms of the extinction ratio and the insertion loss, confirming a good correlation with the FDTD results

Consideration of housing complexes as a Compact City

This paper examines the number of business facilities in housing complexes, which in the Tokyo Bay area have a population of 9,000 to 85,000. We obtained the numbers by using Google Map and defined the typical standard number of facilities for a population of 10,000. A mathematical model of a previous study supports the reliability of the values. Finally, we calculated the population required to maintain a business

自閉スペクトラム症の大学生・大学院生のレジリエンスに関する研究

博士(学術)法政大学 (Hosei University

Consideration on issues and future directions of multicultural coexistence policy in Osaka City

研究の概要(和文)：本研究は、自治体の多文化共生の取り組みに関する実態について把握することを目的に大阪市24区を対象にしたもので、本報では大阪市が抱える課題について大阪市において多文化共生を担っている大阪市市民局ダイバーシティ推進室人権企画課に対しインタビュー調査を実施し分析したものである。その結果、大阪市における近年増加する外国人在住者に対する課題として次の3つのことが分かった。①大阪市多文化共生指針（2020.12）に基づく行動計画（2021.2）の評価と外国人住民のニーズに合った取り組みが求められること、②自治体からの外国人住民に対する情報発信策（情報環境整備）が求められること、③日本人と外国人住民の相互理解（コミュニティ形成）の場の必要性があること。日本においては、大阪市のように短期間に多国籍化が進んだ地域が多数存在するが、大阪市において持続可能な多文化共生が実現されることによって、今後の在住外国人が集住する地域にとっても、多文化共生のモデルとなることが考えられる。研究の概要(英文)：This study was conducted in the 24 wards of Osaka City with the aim of grasping the actual situation regarding the efforts of local governments for multicultural coexistence, and this report conducted and analyzed the issues facing Osaka City by conducting an interview survey with the Human Rights Planning Division of the Diversity Promotion Office of the Osaka City Citizens’ Bureau, which is responsible for multicultural coexistence in Osaka City.As a result, the following three issues were identified as issues for the increasing number of foreign residents in Osaka City in recent years. （1） Evaluation of the action plan （February 2021） based on the Osaka City Multicultural Conviviality Guidelines （December 2020） and efforts to meet the needs of foreign residents are required （2） Measures to disseminate information to foreign residents （improvement of information environment） from local governments are required （3） There is a need for a place for mutual understanding （community formation） between Japan and foreign residents.In the Japan region, there are many regions such as Osaka City where multinationalization has progressed in a short period of time. If sustainable multicultural coexistence is realized in Osaka City, it will become a model for multicultural coexistence in areas where foreign residents will congregate in the future

Scale Estimation of Monocular Camera SLAM using a 2D Lidar

SLAM using a monocular camera has the problem that scale cannot be uniquely estimated, and scale drift occurs. This study uses 2D Lidar scan data to improve scale drift and enable scale estimation. Specifically, we improve scale estimation and scale drift by averaging the ratio of distances between the 3D point cloud reconstructed by monocular SLAM and the 2D Lidar point cloud by mapping the data based on the viewing direction. The accuracy is further improved by following the concept of M-estimation