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The ions in the cylindrical Ion Cyclotron Resonance(ICR) cell excute a threefold coupled motion because of the inhomogeneous electric field in the presence of the magnetic field. However it has been shown in this work that this can be decoupled into a z-oscillation and a two dimensional motion in the midplane perpendicular to the magnetic field for ?? and treated separately. Furthermore the coupling between the cyclotron motion and the circular drift motion of the ions is investigated. The experimental results are compared with the theoretical values and discussed.
Recently, the drastic decrease of population in the rural areas has emerged as a serious issue. This trend, stemmed directly from the phenomena of urbanization following the high rise industrialization, can be to some extent blamed on the existing direction of both the economic and regional development policy. Namely, the development scheme, based on the manufacturing-led growth center model Korea has pursued since 1960s, has brought about the relative stagnation in the rural part of the nation, causing naturally the outmigration of rural population into the urban areas. The rural decline ensued from the successive population drain entails various aspects of the negative impacts, such as the wide range of interregional income disparities which may disrupt the national consensus of the nationhood and raise the dual structure in the physical land space. This paper, viewed from the above problem statement, is aimed at analyzing the effect of the case of inducing the factories into the rural areas as a development strategy for the efficient rural settlement of population and also investigating the status of the present rural manufacturing to identify what is required to support such project. The manufacturing employed from 10 factories in Chinju and its vicinity, consisting of 573 people, was sampled for conducting the case study. Questionnaire survey sheets were given to each respondent to obtain the relevant ranges of socio-economic data relating to his or her work-place and its condition; survey items contain such information as family status, dwelling and its tenure, education, income, transport means for journey to work, and conditions of workplace and jobs. Main findings confirmed through the analysis can be summarized as follows. First, as the result of the analysis on the past trend of population movement, it is identified that the phenomena of the increase and decrease of population has a close relation to the regional distribution of industries. Second, it is revealed that the male is aged higher than the female; the married has the higher portion than the non-married. Third, it is shown that most of the manufacturing workers have the low level of monthly income and educational background. Fourth, it is indicated that some variables such as the present address, the birth place, the place of final education, and the dwelling place before taking jobs have intimate relationships with each other; it also appears that in view of no evidence of taking the present job to be a factor of population movement, the setting up of factories in the rural areas can't be a component of population migration. Fifth, it is found that the level of satisfaction of the present job varies on the basis of job training experience and the level of monthly income. Accordingly, in order to encourage rural people to take a job in the present place, it is apparently necessary for creating the job training programs for procurement of the job-related technical license as well as taking some policy measure to improve the existing wage systems. Sixth, it is also found that the rural area has still the potentiality to provide quality of labor forces for its own manufacturing operation, that is an important factor for the rural base factories to be managed in the better direction. Seventh, it is identified that most of the respondents have the commuting distance of 12km or less and the time range of one hour or less, for journey to work; the best desirous mean of transport for factory workers can be the commuting by the walk, the bicycle-riding, and the commuting bus provided by the firm. Eighth, in conclusion it should be pointed out that the success of population settlement in the rural area through the localized manufacturing bases depends upon the common effort by the rural residents, the entrepreneurs, the central government, together with precarious choice of the relevant establishments at the proper scales of the operating units on which procurement of raw materials and search for markets are relied.
For the effective utilization of apricot seed resources of food protein and lipid, the general composition, amino acid composition and chemical characteristics were analysed. The skinned and non-skinned apricot seed contained 53.9% and 48.0% of crude lipid, 24.7% and 26.8% of crude protein, respectively. There were no significant difference in the amino acid composition among skinned and non-skinned apricot seed. The major amino acids were glutamic acid, aspartic acid, alanine, tyrosine and threonine, holding 14.6 to 16.9%, 12.4 to 13.7%, 9.2 to 12.1%, 7.2 to 7.5% and 7.0 to 7.2% of total amino acid content, respectively. The sum of these amino acids occupied about 50% to total amino acids. While the quantities of methionine, histidine, and lysine were poor content. The essential amino acids occupied about 30% to total amino acids. The acid, iodine and saponification value of apricot seed oil were 0.7 to 7.1, 80.8 to 107.5 and 182.7 to 208.4, respectively. These values were significant difference in skinned and non-skinned apricot seed.
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After the flourishing Bohai(渤海) Kingdom were destroyed by newly constructed Qidan(契丹) dynasty, Nuzhen(女眞) tribes were able to govern Manzhou(滿洲) area. Nuzhen(女眞) tribes scattered in Manzhou (滿洲) area and went through prosperity and decline without unified nation until they set up Jin(金) Dynasty for two centuries. Although the tribes exchanged culture with the neighbor nations, they didn't leave any written history of themselves. To know the history of Nuzhen(女眞) tribes society in the Liao(遼) Dynasty era, we have to depend on the history of Nuzhen(女眞) tribes' three neighbor nations―Gaoli(高麗), Song(宋), and Liao(遼). Therefore I want to study the history of the three nations. Thus in the period of Liao(遼) Dynasty, some neighbor nations differently named Nuzhen(女眞) tribes by their times. For instance, the people of Gaoli(高麗) named Nuzhen(女眞) tribes according to their settled regions. So Nuzhen(女眞) tribes were generally named Dongnuzhen (東女眞) and Xinuzhen(西女眞). Liao(遼) Dynasty relatively had more specific history of Nuzhen(女眞) tribes because they constantly exchanged culture with each other. Especially according to the history of three nations(Gaoli, Song, Liao), the stories of Shunuzhen(熟女眞) and Shengnuzhen(生女眞) were revealed in late Liao(遼) Dynasty history. Shunuzhen(熟女眞) was governed by late Liao(遼) Dynasty and Shengnuzhen(生女眞) stayed in the north from Songhua river and was governed by Wanyanbu(完部). Wanyanbu, one of the Shengnuzhen(生女眞), unified Nuzhen(女眞) society and built Jin(金) Dynasty owing to its social and industrial prosperity. In other words Wanyanbu could have economic growth based on the society of abundant agricultural products and prosperous stock farming, powerful military strength based on strong fighting power with iron weapon and mounted party tactics, cultural and economic prosperity by trading in native produce and horses, and steady diplomatic relation. In addition Wanyanbu could build Jin(金) Dynasty owing to prominent leaders. Thus Wanyanbu could unify and govern Nuzhen society by not growing military strength but growing social, economic, and political prosperity for two hundred years.
During the last two'decades the nation has experienced a drastic change of the nation-wide spatial features. The economic expansion of the industrial bases in general and the dynamic growth of manufacturing in particular have persisted in the process of a series of economic development schemes, along with the physical land plans, resulting in the phenomenal transformation in the existing spatial framework of the nation. Especially, the construction of the national expressway networks was a propellent for changes in the various facets of the environment, physical and socio-cultural. Even though the highway network, together with facility of communication system, has helped to speed up the flow of the man and goods among region, it has been also as factor for the regional development in the typical rural hinterland. It is assumed that once a new highway is built up, the people in nearby area affected by the barrier of physical environment will receive many facets of environmental impacts in daily life. One of its positive side-effects is the increase of opportunities in terms of social and economic activities, because people, set free from the physical barrier, are provided with the easy access for information and movement. This paper is primarily concerned with the finding of the perceived behavioral modes in a typical from communities in relation to the utilization of the central places; it is also aimed at providing some useful information of socio-economic status in the physically isolated rural area by which a new highway under near completion will be passed. Geochang-gun(郡) was selected for the case study. Tweleve sruvey units, of which one unit consisits of 18 subitems, were selected to obtain the broad scales of socio-economic data through interview with residents to see how activity or perceived activity is related to the basic socio-economic structure and how people respond to their needs of certain services such as education, shopping movement of residents, choice of place for jobs. Some characteristics found out through the analysis can be as follows. First, Geochang-gun belongs to an isolated rural society with dominant mode of farming activity in which the traditional value of life is prevalent but the changes in the socio-economic environment loom through diffusion of innovation. Second, it seems that most farming communities have faced the trend of population decrease due to outmigration toward urban areas while Geochang-eup(邑), a central place town, has shown the opposite effect for its strong tertiary industrial activities. Third, it is identified that Geochang-eup has played more important central place functions relative to its comparable counterparts in the size of population because of lack of compective towns or cities at the perimeter of the 50km radius. Fourth, in relation to the perceived level of familiarity for neighbor cities, people seem to be biased toward such factors as distance from cities, functions respective city provides, centrality of each and presence of kinfolks and friends. Perceived levels for neighbor cities appeared in the order of Daegu, Busan, Seoul and Junju. Fifth, as regard the perception for resident movement, it seems that people are directly influenced by personal motive personal experience as to the purpose of movement, the time-interval for residence, the nature of movable place and distance. The preferred place for seeking jobs wes choiced in the order of Busan, Daegu, Seoul, Geochang-eup and Jinju whereas the desirable place for the higher education appeared in the order of Daegu, Seoul and Jinju. Sixth, according to the analysis of utility of central place facilities based on 4 class of 15 items, most people have been relied on Geochang-eup Daegu city for meeting their needs for services. Daegu shows more acceptance in the highest order functions in the hierarchy, while Geochang-eup receives a broad scale of preference in the upper three order functions and village centers dominate the fourth order function. Seventh, it is identified that the social status of the local residents reflects the differences in th preference of the central place. As a result of this basic analysis, it is felt that the present paper serves a useful but limited purpose by drawing attention to the behavioral aspects of social environment which need to be through investigated in the follow-up research in the near future.
The purpose of this study is to analyze the spatial systems of central places and to test christener's central place theory in Korea. The questionnaire used in this study was composed of 92 items, but only 16 items about central functions were analysed. The writer analyzed 3,115 questionnaires from 1,102 regions (Eub, Myeon, Chuljangso) for this study. The brief synopsis resulting from the analysis is as follow : 1) Central places between Myeon and seat of provincial government were classified into 5 groups (from 'A' to 'E' group). 2) The 'k-value' of each group is shown in table 9 and marketing principle and transportation principle of charitable's central place theory can be applied to Korean central place systems. 3) Marketing principle is applied to 'A', 'C', 'D' and 'E' groups, and transportation principle is applied to 'B' group. 4) The hierarchy of 'A' group is higher than that of 'C', 'D' and 'E' groups. 5) Between Myeon and 'C', 'D' and 'E' group, there is another hierarchy of central places, but not found in this study.