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全文: "笹島町"
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  • 呉 凝, 鈴木 充
    日本建築学会計画系論文集
    1995年 60 巻 470 号 251-260
    発行日: 1995/04/30
    公開日: 2017/01/27
    ジャーナル フリー
    In the process of city modernization, the modernization of urban transportation systems is an indispensable condition. The present paper is a comparison study about the effect of the introduction of streetcar on the course of city modernization between Japan and China. During the initial period of city modernization in Japan, the streetcar is introduced as a transportation tool linking populous urban regions and railway stations as well as harbors. However, it soon developed the popular urban transportation and had a significant influence on the city modernization. For example, the development of streetcar railway networks coupled with the road broadening played an important role in the city modernization of Osaka and Kyoto. In China, the introduction of streetcar was only limited to Beijing and the concession cities, Shanghai and Tianjin, besides some colonized cities in northeast China. While most cities, even some prosperous cities such as Guangzhou, did not have the streetcar system. Therefore, the introduction of streetcar in the early stage did not play an important role in the city modernization in China.
  • 岡田 茂, 藪亀 淳夫, 大根 義男
    農業土木研究
    1962年 30 巻 4 号 185-190
    発行日: 1962/12/25
    公開日: 2011/03/09
    ジャーナル フリー
  • コパル光機製作所設計部
    精密機械
    1961年 27 巻 322 号 713-718
    発行日: 1961/11/05
    公開日: 2009/06/30
    ジャーナル フリー
  • 北浦 弥三郎, 三輪 敏夫
    精密機械
    1961年 27 巻 314 号 137-141
    発行日: 1961/03/05
    公開日: 2009/06/30
    ジャーナル フリー
  • 角田 馨
    精密機械
    1960年 26 巻 305 号 318-322
    発行日: 1960/06/05
    公開日: 2010/02/16
    ジャーナル フリー
    When the work is continuously ground with an automatic internal grinder, there is a tendency of dimensional error occurring according to a specific trend.
    The causes for this, in most cases, are attributable to the automatic dressing of grinding wheel and to the mechanism whereon the stop position varies whenever the work head is dressed. Thus, the author interprets that the error occurring from continuous operation is due to the function of the respective relative positions of the centers of the work and the grinding wheel spindle and, also, of the diamond cutting edge.
  • 本田 肇
    精密機械
    1954年 20 巻 231 号 217-220
    発行日: 1954/06/05
    公開日: 2009/06/30
    ジャーナル フリー
    In order to express the surface roughness of the known characteristic, it is quite advisable to use the maximum range-peak-to-valley height. According to JIS, the uncommon peak or valley, which appears only once or twice among the standard length must be eliminated in measuring "peak-to-valley height." But the statistical survey shows how these directions throw research workers into confusion.
    By measuring the real "peak-to-valley height" of several samples, . the estimates of surface roughness are obtained.
    After the characteristic of surface roughness is determined, standard deviation of the surface roughness can be estimated through "peak-to-valley height, " because there exists the significant correlation between them.
    In measuring surface smocithness, the object of the measurement must be made clear. Sample size should be decided to fill the purpose of the experiment. The meaning of the "peak-to-valley height" is treated here.
  • 宇野 義幸, 津和 秀夫
    精密機械
    1976年 42 巻 496 号 358-363
    発行日: 1976/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    In the transitional cutting process such as milling or grinding, there exist transient regions (elastic deformation region and plastic deformation region) in the initial part of contact between tool and workpiece. These regions are left in the finished surface and affect the surface generation mechanism. From the above point of view, a model experiment is conducted to account for the mutual interference state between tool and workpiece. Variations of cutting forces and various residual stocks in the elastic, plastic and cutting region in the initial part of contact are analyzed experimentally. Furthermore, the effects of different machining conditions on the sliding phenomenon of a cutting edge are investigated. The results show that the sliding length decreases with an increase of the interference angle, and that plastic deformation and cutting begin at respective constant depth. It is also found that the sliding length increases with an increase of the width of cut and the nose radius of a cutting edge, while the sliding length decreases with an increase of the system stiffness.
  • 中島 利勝, 岡村 健二郎, 木下 輝一
    精密機械
    1974年 40 巻 470 号 256-262
    発行日: 1974/03/05
    公開日: 2009/06/30
    ジャーナル フリー
    The accumulation phenomena originate in grinding, because a cutting process of an abrasive grain is transitional and then various kinds of stock remain unremoved due to the difference of the radius reduction of workpiece from the interference depth of wheel. The accumulation phenomena result in the existence of three distinct grinding states in a cycle of cylindrical plunge grinding, a transient, a steady and a spark-out grinding state. The purpose of this study is to get a foundation for scientific understanding of grinding by analyzing transient characteristics in grinding. In this report the size generation process in cylindrical plunge grinding is discussed by analyzing the size generation curve, stock removal and various kinds of stock unremoved in the three grinding states.
  • 西村 源六郎, 高橋 浩一
    精密機械
    1964年 30 巻 355 号 629-636
    発行日: 1964/08/05
    公開日: 2009/10/08
    ジャーナル フリー
    In this paper, are studied both of the properties and the generation mechanism of the sound produced by a dental point grinding operation.
    As work-pieces to be operated, we take up the three kinds of pieces such as glass, iron and aluminium. (The glass piece has a homogeneous enamellike property of tooth and the elastic properties of both iron and aluminium become almost equal to that of glass.) The experimental results obtained are as follows.
    (1) The grinding sound are caused by both the vibration of the work-piece and that of the dental point.
    (2) For the case of glass glinding, the power of the sound generated from the work-piece vibration becomes larger than that generated from the dental point vibration, but for both cases of iron and aluminium grindings the sound power relation-becomes reverse to the case of glass grinding.
    (3) The power of the grinding sound has no relation with the magnitude of the depth of cut of the dental point and it becomes proportional to the grinding efficiency defined by the cut volume in unit time in the grinding operation.
    In this paper, the sound generation mechanism is also treated theoretically by using the property of the cutting abrasives distributed at random on the surface of the dental point and moreover by putting some simple assumptions on both the vibration and the sound radiation conditions of the work-piece.
  • 横山 武人, 橋本 文雄, 田中 示
    精密機械
    1961年 27 巻 320 号 605-611
    発行日: 1961/09/05
    公開日: 2010/02/16
    ジャーナル フリー
    This paper presents the results of an investigation of the frictional effect on cutting forces in metal cutting. What is called the coefficient of friction especially in the case of metal cutting is actually the apparent coefficient of friction.
    The real coefficient of friction is nearly constant, or independent of the rake angle of a tool at least. And it depends on the properties of the material, the condition of the tool surface, and the temperature of the contact surface, etc.
    The theory of these phenomena is discussed in term of basic variables in chip formation. The fundamentals of chip formation are largely affected by the accuracy in measurement of cutting force under normal cutting conditions.
    The primary requirement for the dynamometer is sufficient stiffness, and the second is high sensibility.
    For this purpose, the authors made a three-dimentional tool dynamometer with a tubular tool holder. For measurement of interface temperature, a compensating circuit Is used to minimize the effect of parasitic electro motive force, induced by use of a lead dissimilar in composition to the carbide tip.
    These results are shown graphically in Fig.5-10, then the considerations or discussions on the friction in metal cutting.
    From these analyses, it can be concluded that the apparent coefficient of friction (μ) is defined by the real coefficient of friction (μ0) and a function of the rake angle (α), as shown Eq. (5), (6).
  • 西山 卯二郎, 井上 卓, 田中 示
    精密機械
    1960年 26 巻 310 号 667-673
    発行日: 1960/11/05
    公開日: 2009/06/30
    ジャーナル フリー
    Recently, the explosive metal forming has begun to drau considerable attention of the public.
    The main reasons are the following :
    1. Larger or more complicated shapes than ever can be formed easily with explosives.
    2. Some new great-strength, high-temperature resistant metals can be formed only by ex plosive forming. in this report are included fundamental experiment about the under water explosive metal forming. That is, the relation between peak explosive pressure and weight of explosive, or distance from explosive, or depth from water level are ob tained by copper cylinder-type pressure gauge. Then, cylindrical cups of 50 mm dia, 20, 30, 40 mm depth, have been formed under several conditions and the formablity of explosive forming are estimated from these results.
  • 井上 潔
    精密機械
    1957年 23 巻 272 号 475-480
    発行日: 1957年
    公開日: 2009/06/30
    ジャーナル フリー
  • 大日本窯業協會雑誌
    1915年 23 巻 270 号 294-301
    発行日: 1915年
    公開日: 2010/04/30
    ジャーナル フリー
  • 太田 明, 兼田 敏之
    日本建築学会計画系論文集
    2015年 80 巻 712 号 1365-1372
    発行日: 2015年
    公開日: 2015/07/11
    ジャーナル フリー
     The purpose of this research is to clarify usefulness of Space Syntax (SS) measures quantifying street network in factor analysis for prosperity.
     1. We focus Nagoya CBD between 1935 and 1965 that the city planning projects include war damage revival planning were executed, and analyze land price indicators by multiple regression analysis using the distance to streetcar stop, commercial and office use intensity, street width and SS measures in two times.
     2. We compare the two estimated models focusing on change of the factor variables rank. As a result, we point out the implication concerning influence of city planning project.
  • 鏡味 完二
    地理学評論
    1939年 15 巻 1 号 35-63
    発行日: 1939/01/01
    公開日: 2008/12/24
    ジャーナル フリー
    Taking 4124 factories and stores that pay more than 30 yen in business tax annually, the author drew absolute distribution maps (for exampse Fig4A. and reproduced them into isopleth maps as shown in Figs. 1-10. The isopleth lines were obtained by summing up the index numbers of the quotients of every 500 meter square, the sum of the busines tax of each factory and store divided by 30 yen givin the above quotient-s. Figs. 1-8 show the distribution arranged according to the products and goods, which are further treated in Figs. 9 and 10, representing production and sale respectavely.
    As to the last two maps the following points should be noted:
    (1) Production and sales are distributed almost all over the city.
    (2) Many of the productive centers are separated from one another, except, however, one near a very large sales center (The greatest value of the former being 1071, and of the latter 1330).
    (3) The sales center in the heart of the city has a production area exeeding index number 100 in its neighbourhood.
    (4) Obvious difference in distribution between the centres of sales and industry and the rest.
    (5) Low production and sales, outside centres, that are below 100.
    (6) The largest facilites for communication, such as railways, cannals, and roads are in the districts of production and sales.
    Furthermore the author, drawing Figs. 11 and 12, considers the subject of demarcation of districts from the vriew point of municipal functions, Fig. ll shows the center districts in which lines of circles represent production, and the solid dot lines the sales. A slight division can be made between the sales. and production districts, the formerbeing encircled by the latter. The largest center of sales lies in the northan part of the city, and that of production in the southern part.
    In the case of the sales center, however, the various minor centres described are clustered almost in one area.
    Retail-ratio. The percentage of retail business to total sales, is shown in Fig. 12. Its zone runs from east to west, whereas the wholesale zone lies at the center of the city.
  • 渡辺 新三
    土木学会論文集
    1989年 1989 巻 407 号 1-10
    発行日: 1989/07/20
    公開日: 2010/08/24
    ジャーナル フリー
  • 清水 茂
    日本文学
    1972年 21 巻 4 号 32-39
    発行日: 1972/04/01
    公開日: 2017/08/01
    ジャーナル フリー
  • 井沢 実, 野崎 卓二
    精密機械
    1975年 41 巻 484 号 453-460
    発行日: 1975/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    There are many studies concerning the oscillating conveyor, however they have discussed about each conveyance operation when the motion of single line, circular and elliptical is used as the oscillation type of the plate. In this study, the conveyance action was investigated regarding the combined type oscillating conveyor equipped two plates which operate the line type oscillation by the different frequencies and amplitudes respectively. The purpose of it is that if the effects of frequency and amplitude, etc. which influence on the conveyance velocity can be combined effectively by means of the two oscillating plates, it will be able to expect the effects on the excellent feed action of the material and on the supplementary operations such as selection and arrangement of the material. As the first step of the study, the conveyance velocity of various conveying materials i. e. steel, aluminium, brass, lead and bakelite using the constant ratios of frequencies and amplitudes between two plates was analyzed theoretically and confirmed by many experiments, moreover the paths of motion of the various materials recorded experimentally were also ascertained comparing with that calculated analytically.
  • 水内 俊雄
    人文地理
    1984年 36 巻 4 号 289-311
    発行日: 1984/08/28
    公開日: 2009/04/28
    ジャーナル フリー
    The importance of improvement in living condition in urban areas recently has been stressed in Japan. We can point out three issues in this trend. First, blighted areas have already appeared in suburban areas of densely built “bunka” apartment house. Second, revitalization of the inner city is being watched with keen interest. Third, criticism of existing urban policy which is busy pursuing construction of urban infrastructure is developing new ideas for improvement of urban living condition. From these viewpoints, we can see only two examples of improvement in poor housing distrcts. In fact, Japan has a long tradition of renewal of poor housing districts. Unfortunately, these kinds of districts, i.e. minority group ghettoes, we call “dowa” districts, have not been properly analysed. There are two reasons for this lack of research. First is the tendency for Japanese scholars to avoid topics and ignore groups that are the object of majority prejudice. Second is the record of heavy-handed political intervention in the conduct and findings of such research.
    This paper at first clarifies the historical formation of poor housing districts in prewar Japan. Second, we focus on the “Renewal of Poor Housing Districts Act” of 1927, making clear how this act was created and put in force. This research also attempts to put “dowa” districts in their proper place among all kinds of poor housing districts in Japan. In addition, we set value on this housing act as the the first public project to improve living conditions in Japan, and reveal the counter-responses of the people concerned.
    In post-war Japan, especially after 1960, the pace of renewal projects quickened and many projects attained good results. These results were achieved mainly by minority-group peoples' movements, and such movements were linked to political influence. The historical approach adopted in this paper aims to pursue the origin of these movements and their political attitudes in pre-war Japan.
    The “Renewal of Poor Housing Districts Act” was authorized by the Department of Social Welfare of the Ministry of Interior. Before the enactment of this act, the Department of Social Welfare conducted many investigations of poorer peoples' living and housing conditions. These investigations not only helped in the enactment, but also added special characteristics to this act. One such characteristic is observance in principle of rehousing people in the same location, and the other is omission of concrete standards in selection of renewal areas. The former is the result of imitating the housing acts in England. The latter is explained by the fact that the Department of Social Welfare had no need to define selection standards since they had already gained information about location of the poor housing districts.
    Projects in accordance with this act began in 1928, rehousing nearly 4000 households by 1942 in 6 big cities: Tokyo, Osaka, Kyoto, Nagoya, Kobe and Yokohama. The 16 districts selected or planned for selection were divided into three types. This selection reflected the existing three types of poorer peoples' districts at that time. The first type were those of minority groups, i.e. “dowa” districts originating in the pre-modern era. The second type were residential districts of urban miscellaneous laborers centering around flophouse, and the last one was residential districts of lower factory workers. The latter two emerged in modern era after 1868. Seven of the selections were of the first type, and these cases became a precedent for post-war projects. From the viewpoint of the people concerned, Nagoya and Kyoto showed special responses toward the renewal projects. Considering the historical conditions in pre-war Japan, people at that time did not possess any legal ways of opposition and had limited opportunities for achieving their demands for improvement.
  • 桜井 好正
    精密機械
    1961年 27 巻 318 号 497-502
    発行日: 1961/07/05
    公開日: 2009/06/30
    ジャーナル フリー
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