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Development of an Interactive Device Using Sensor Gloves
Get PDFapplication/pdfEven if the speech handicapped know human sign languages, it is impossible to communicate with
a person who doesn’t know them. Therefore, to assist the speech handicapped, we have developed
such a speech synthesis system as the texts can be provided by a pair of sensor gloves. The sensor
gloves have ten binary outputs which indicate whether each finger is bending or not, and that digital
code can be converted to the Roman alphabet. Our design strategy has been accomplished by the
H3048F, one of the cheapest microprocessors available.
In this paper we have examined the feasibility of the proposed device concerning such as input
speed, facility and portability.departmental bulletin pape
An Algorithm Visualization System for C Language Program
Get PDFapplication/pdfIt is important to understand the operation process of the algorithm when a program is studied and
debugged. We can use a debugger for this purpose. However, it is not easy to understand the
operation process of the algorithm intuitively, by getting numerical information obtained from the
debugger. On the other hand, when we understand the algorithm from using diagram such as
flowchart, it is difficult to grasp the states of variables.
In this paper, we developed an all-purpose visualization system of algorithm to support the
debugging and the study of beginner’s programming;we can easily visualize the operation process of
the algorithm and grasp the states of variables. We proposed some devices to visualize easily the
operation process of the algorithm:to display a tree-structure among functions,to indicate compactly
the flowchart by a case, and to make a graph of the states of variables.departmental bulletin pape
Earthquake-Resistance Improvement Using Strengthened Sub-Frame against Exterior Walls for a Conventional Wooden Framed House
Get PDFapplication/pdfThe improvement of earthquake-proof performance of wooden houses is one of the most important disaster prevention measures for urban area against earthquakes. The purpose of this research is to investigate the earthquake-proof performance of the inside sub-frame by using the polypropylene material processing as the strengthened exterior wall. The test results are as follows. (1) The wall area index of the proposed inside-frame shows about 0.5 at 1/120 rad of story-deformation angle. (2) The ultimate bearing force of the proposed inside-frame is over 2 or 3 times against the strength at 1/120 rad; therefore the sufficient safety ratio can be maintained. (3) The rupture of the proposed inside-frame occurred due to the breakage of the joint part fastened by screw nails between the inside-frame and the supporting stud. Thus it will be better to improve resistance property of the joint part.departmental bulletin pape
クラスタリングによる系統構成候補削減に関する一考察
Get PDFapplication/pdf筆者らは，実規模の常時系統から供給信頼度を維持した作業系統候補を生成する手法をこれまでに提案してきた。探索範囲を限定する工夫をしてもそれらは数百万オーダーの規模に及ぶため，何らかの削減方法が必要となった。本研究では，大規模データに対応したクラスタリング手法を適用することで，供給信頼度指標をパラメータにした分類法の検討を行ったのでこれについて報告する。conference pape
簡易ウェーブレットを用いた単眼視による距離計測法
Get PDFapplication/pdfマルチベースラインステレオ法で得られた単眼視撮影画像に、簡易ウェーブレット変換を行うことによる新規簡便距離計測法を提案する。 本方法により、低コスト、省スペース、簡易処理を実現でき、移動ロボットの視覚としての有用性を高めることができる。本報告で新規提案する単眼視による距離計測法は、ロボットの移動で時々変化する画像の差分画像に簡易ウェーブレット変換を施した画像中の空間周波数分布が、そのまま距離画像として表示できることにもとづくものである。 移動ロボットの実用ロボットアイとしては、距離抽出に最適なマザーウェーブレットの選定、測定精度などが課題であり、今後検討していく。conference pape
二層構造非線形光ファイバアレイの光波結合ダイナミクス
Get PDFapplication/pdfWe investigate coupling dynamics between two optical fiber arrays by use of the discrete coupled wave equations. The calculations are performed with various optical excitation conditions, and by varying the number of coupled fibers between the two arrays and values of the nonlinear coefficients. The results show that when the one array is excited, an efficient power transfer between the two arrays is realized with appropriate coupling conditions. Furthermore, even when the two arrays are equally excited, the all optical power can be localized in one of the arrays by choosing the phase difference of the excited optical fields of the two arrays. The phenomena shown in this report can be used to fabricate optical dividers and optical combiners.この論文で吉田博行氏に電子情報通信学会から奨励賞が授与されましたconference pape
Restoring Force Characteristics of Steel Framed Structure Strengthened by Non-compression Brace
Get PDFapplication/pdfIn this paper, horizontal loading tests of rigid frames with braces attached by high-strength bolts were carried out in order to examine the applicability of the non-compression braces to rehabilitation of existing structures. The K-shaped braces as well as the X-shaped ones were employed to clarify the deformation behavior of strengthened frames and the cyclic characteristics of the frames showed spindle-shaped. The following conclusions were drawn from the experimental results. 1) No buckling phenomenon happens. 2) No slip phenomenon due to plastic deformation of the brace happens. 3) The restoring force characteristics show spindle-shaped curves.departmental bulletin pape
Flow Boiling Heat Transfer of Tap Water in Micro-Channel
Get PDFapplication/pdfAn experiment was conducted to investigate heat transfer characteristics of tap water in micro-channels. The tested channels were rectangular channels with 12mm breadth. They were a straight channel and two curved channels having a curvature radius of 64mm and 32mm, and the channel height was changed from 1.0mmt to 3.0mm. The experimental results can be summarized as follows. 1) Heat transfer coefficient in a subcooled region increases rapidly with decreasing the degree of subcooling. 2) Heat transfer coefficient in a saturated region first decreases and then turns to increase. 3) Heat transfer coefficient in a saturated region increases with decreasing heat flux and increasing mass flux for all experimental conditions. 4) Heat transfer coefficient in a curved channel is smaller than that in a straight channel having the same channel height for narrower channels, but this tendency is reversed for higher channels. 5) Dryout occurs with smaller vapor quality with smaller channel height smaller curvature radius, smaller mass flux and larger heat flux.departmental bulletin pape
Cyclic Loading Test on Angle Steel Brace with Bonding CFRP Plates
Get PDFapplication/pdfTo enhance the usage life of existing building a tensile force strengthening method with bonding carbon fiber reinforced plastic (CFRP) plate has been developed by the authors. To enhance the strength and deformation of steel structure member, a rehabilitation technique for cyclic force strengthening as well as tensile force strengthening. This paper reports the result of cyclic loading tests on an angle steel brace before and after rehabilitation using bonding CFRP plates. These results show enhanced compressive force carrying capacity and deformation capacity by bonding CFRP plates.departmental bulletin pape
Safety Management of Experiment and Shop Practice for Students in a Seminar of Production Engineering
Get PDFapplication/pdfSafety management of the students who are studying in a seminar of production engineering is described in this paper. Undergraduate students who are studying in the above seminar very often operate machine tools, cutting tools or many measuring instruments. They also sometimes have the experience of welding, heat treatment or other operation in high temperature environment. Although the students are well instructed and trained in the lectures of Shop Practice in their second year at college, they are easy to forget many important matters to keep the safety. This report shows some specific important examples of safety management when they study in the experimental room of production engineering seminar.departmental bulletin pape