新任期における教員の職務満足感におよぼす学校組織特性の研究

兵庫教育大学修士thesi

Patterns of Occupational Structure in a Local Labor Market Area of Kofu City, Yamanashi Prefecture

地域の就業構造は，個別地域に関わる労働市場によって変動するとの考え方から，甲府市の地方労働市場圏における各市町村の就業構造を分析し，その変動と地域的配置について明らかにしようとした。山梨県の市町村の就業構造に関して，国勢調査と農業センサスの資料を用い，修正ウィーバー法によりその産業別就業構造と農家雇用兼業形態の類型を求めた．その結果以下の6点が明らかとなった．①産業別就業構造の変動では，時点ごとに低次産業から高次産業への移行と，産業の多様化が進展している．②産業別就業構造の地域的配置においては，基本構造としては圏構造をなし，核となる甲府市から周辺地域への変化として，高次産業から低次産業への傾斜的配置がみられる．③産業別就業構造の地域的配置は，時点を追って中心地域から周辺地域に向かっての農林狩猟業の退行と，製造業，続いて卸売小売業，さらにサービス業の波及的拡大によって変動してきている．④産業別就業構造の配置をみると，大きくは甲府市の東側地域と西側地域では配列に違いがみられる．⑤労働市場圏の縁辺地域では，地方中心都市の影響力の微弱さゆえに，地元労働市場の性格を強く反映した多様な就業構造が表れている．⑥農家雇用兼業形態の地域的配置は，基本型として甲府市を中心に圏構造をなし，K類型，KH類型，HK類型，H類型の配列が見られる．The purpose of this paper is to describe the municipal changing patterns of occupational structure and there regional arrangement in a local labor market area. The changing patterns of occupational structure are controlled the labor market of Kofu City. Many labor market areas overlap each other in this region largely centering on Kofu City. By using the data of the population censuses and the agricultural censuses for the years 1960, 1970 and 1980, occupational types by industries and part-time former types were determined by applying the Weaver's method modified by Doi. The major findings are summarized as follows : (1) The occupational structure by municipalities changes from low level to high level as time passes. (2) Local labor market area of Kofu City has more or less a circular pattern, higher level occupations being located nearer to the central place. (3) As time passes, agricultural elements begins to decrease first around the central city then in the outer regions. Reversely, manufacturing elements tend to diffuse into the outer regions, followed by wholesale and retail trades, and services follows thereafter. (4) In general, occupational structures in municipalities differ in the eastern part of the labor market area from the western part. (5) At the fringe of the circular pattern, various occupational structure appear, since the labor market power of Kofu City becomes weaker there. (6) Employment types of the part-time farmers takes a changing patterns from the central city to the fringe areas. “K”, “KH”, “HK” and “H”, where “K” means commuter dominance, “KH” commuter over daily employment, “HK” daily employment over commuter, and “H” daily employment dominance.論説ARTICLESdepartmental bulletin pape

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2-D LMA Filters -Design of Stable Two-Dimensional Digital Filters with Arbitrary Magnitude Function-

This paper proposes a technique for designing two-dimensional (2-D) digital filters approximating an arbitrary magnitude function. The technique is based on 2-D spectral factorization and rational approximation of the complex exponential function. A 2-D spectral factorization technique is used to obtain a recursively computable and stable system with nonsymmetric half-plane support from the desired 2-D magnitude function. Since the obtained system has an exponential function type transfer function and cannot be realized directly in a rational form, a class of realizable 2-D digital filters is introduced to approximate the exponential type transfer function. This class of filters referred to as two-dimensional log magnitude approximation (2-D LMA) filters can be viewed as an extension of the class of 1-D LMA filters to the 2-D case. Filter coefficients are given by the 2-D complex cepstrum coefficients, i.e., the inverse Fourier transform of the logarithm of the given magnitude function, which can be efficiently computed using 2-D FFT algorithm. Consequently, computation of the filter coefficients is straightforward and efficient. A simple stability condition for the 2-D LMA filters is given. Under this condition, the stability of the designed filter is guaranteed. Parallel implementation of the 2-D LMA filters is also discussed. Several examples are presented to demonstrate the design capability.application/pdfjournal articl