• Korean Journal of Agricultural Science
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• v.13 no.2
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• pp.289-298
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• 1986

This paper aims at identifying the positive economic effects of the tenant system. Increasing numbers of tenant farms is one of the characteristic aspects of Korean agriculture. They have increased 3.7 percent annually since 1960. At the end of 1985, 64.7 percent of the Korean farmers leased partly or entirely the farm land which they managed, and 30.5 percent of the total arable area was cultivated under the tenant system. To find out the difference in performance of management between land owners and tenants, 600 farm households were selected as samples throughout Chungnam province. Among those sampled were 300 land owners and 300 tenants. Tenants defined this paper include not only full tenants but also part tenants. The results of this study are summarized as; First, rice is the main income resource of tenant farms. Due to their rental charges, the marketable surplus of farm products might be lower than that of land owners. Whereas 40 percent of the landowners income is from rice production, the tenants income from rice production is 43 percent. Second, tenants continue to depend on more agricultural wage incoms and more double crop incomes in paddy fields than land owners. Third, like most poor people in the third world, they have maximized their incomes and minimized their expenditures by saving management costs. Finally, there was no interlinking between landlords and tenants especially related to credit supports. Most farmers in the surveyed area have met their credit requirements from agricultural cooperatives.

• Korean Journal of Oriental Medicine
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• v.4 no.1 s.4
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• pp.47-62
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• 1998

We explicate the forming mechanism of Sasang constitution as the principle of energy distribution which is based on the evolutionary hypothesis. The result was obtained as follows: 1. The principle of form-image (形象) in oriental medicine can be explained with the relation between structure and function that a life acquires through the adaptation and evolution. 2. The Sung-jung (性情) in Sasang constitutional medicine can be explained as the strategy for survival or the pattern of adaptation by which an individual or a species lives in this world. 3. The forming mechanism of Sasang constitutional organic phase (臟局) can be explained as the principle of energy distribution which includes three hypothesis (hypothesis of limited resources, hypothesis of preference and hypothesis of effectiveness). 4. It is postulated that the local hemodynamics is one of the most important factors that determine the difference of Sasang constitutional organic function. 5. The relation of metabolic rate, local hemodynamics and thermo-metabolism is inseparable and it is the important point of forming mechanism of Sasang constitution and the diagnosis of pulse.

• Asian Pacific Journal of Cancer Prevention
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• v.13 no.9
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• pp.4689-4693
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• 2012

Lung cancer is the most common type of cancer and one of the leading causes of death in the world. Genetic factors play an important role in its development. PDCD6, the encoding gene for programmed cell death protein 6, may function as a tumor suppressor gene. Non-small cell lung cancer (NSCLC) contributes about 80% to newly histologically diagnosed lung cancer patients. To explore the relationship between PDCD6 and NSCLC, we examined two single nucleotide polymorphisms(rs3756712 G/T andrs4957014 G/T, both in the intron region) of the PDCD6gene.A hospital-based case-control study was carried out including 302 unrelated NSCLC patients and 306 healthy unrelated subjects. Significantly increased NSCLC risk was found to be associated with the T allele of rs4957014 (P=0.027, OR=0.760, 95%CI=0.596-0.970). The genotype and allele frequencies of rs3756712 did not shown any significant difference between NSCLC group and controls (P=0.327, OR=0.879, 95%CI=0.679-1.137). In conclusion, we firstly demonstrated the association between the PDCD6 gene and risk of NSCLC in a Chinese Han population.

• Proceedings of the Korea Contents Association Conference
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• 2006.11a
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• pp.853-855
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• 2006

Today, the Publishing world goes to meet 'U-Publishing' which means the time of 'Ubiquitous Publishing 'in the Latin language. The concept of book evolves into the concept of U-Book beyond the concept of e-book from the concept of paper media book of the past Although the concept of book changes according to the times and media, there are design values which is changing and which isn't changing. We can regard these points of views as the immediate and the ultimate value. The immediate value means the values of the present time which explains the sprit of the time, and the ultimate value means what will not change beyond the time in spite of the difference of media which delivers design. This paper deals with the design of U-book concept which has been appear since 2n5 from the standpoint of the immediate and the ultimate value.

• Journal of Mechanical Science and Technology
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• v.14 no.9
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• pp.956-967
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• 2000

In this paper, we explore the issues of force display in the cooperative virtual environment shared by multiple users distributed over the network with heterogeneous hardware platforms. The proposed method is to cope with the problem of small time delay and the difference of sampling rate in the distributed configuration. In the proposed approach the interaction forces of the participants are just treated as the independent sources of acceleration. Thus the action of a participant simply changes the acceleration of the virtual object and consequently the states of the virtual object will be updated. When the updated states are reported to all the participants, the information on the time of state changes is delivered, too. Employing the discrete state information updated by the other users, each user modifies his own virtual environment and pseudo-realtime simulation can be realized. Excluding the software interface and the communication technique, it is proposed the simulation method for the operation of respective users and the way of calculating the driving input to the display device. For experimental verification we construct a cooperative virtual environment shared by two remote users and outline the results of experiments.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.33 no.3
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• pp.79-86
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• 2010

Causing by economic stagnation and financial management difficulty of the domestic small and medium business company, the actual condition which enlarges the plan of politic funds increased from the government. The government authority as the SBC (small and medium business promotion corporation) evaluates the domestic small and medium business company, and directly executes a governmental politic funds. Financial analysis is a important factor of enterprise evaluation among various valuation bases. However because of applying to the whole domestic manufacturing industry on financial evaluation, Current financial evaluation index effectively cannot reflect the feature of a regional industry. A whole manufacturing industry index considers a standard for the comparison evaluation of domestic manufacturing industry and compares with the other industries and the world-wide nation industry change, But, there is a difference from indexes of corresponding industry in specific regions. This paper proposes a model of evaluation index for the efficient execution of politic funds. We considers three manufacturing industries for proposed model which are shipbuilding, machine tool and airline industries in Gyeongsangnam-do region.

• Korean Journal of Human Ecology
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• v.20 no.2
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• pp.377-389
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• 2011

The object of this study was to analyze the meaning of luxurious consumption, the subjects and the objects of luxurious consumption, the desires that propel luxurious consumption, and the luxurious consumption patterns of the past and the present. The materials and information used for this research were acquired by reviewing literatures from a library. The time frame used to separate the past and the present was the Second World War. The analyzed materials and contents for the research were the subjects and the objects of luxurious consumption, the desires that propel luxurious consumption, and the patterns of luxurious consumption. Comparing the trends of luxurious consumption of the past and present historically, the biggest differentiation between the past and present was the spread of subjects and objects of luxurious consumption. In the past, luxury consumption belonged to the wealthy only, but the accessibility of luxury consumption has increased to the point where anybody can buy what they want at will. Another difference was found in the desires that prompt luxury consumption and the consumption patterns of the past and present. Based on these results, several suggestions about luxury consumption were presented in this paper.

• Journal of Information Technology Services
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• v.7 no.2
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• pp.137-148
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• 2008

This paper measures and compares the traffic of a series of Massively Multi-player On-line Role Playing Game (MMORPG). The purpose of this analysis is to characterize the MMORPG traffic and compare the traffic characteristics of those games caused by the game structure difference between 2D and 3D environment. The target game is 'Lineage I' and 'Lineage II' which represent world's largest MMORPGs in terms of the number of concurrent users. We collect about 280 giga bytes and 1 tera bytes of packet headers, respectively. We compare packet size, packet inter-arrival time and bandwidth usage of these two games. The MMORPG traffic consists of two kinds of packets: client-generated upstream packets and server-generated downstream packets. We observe that the upstream packet size of payload has grown from 9 bytes to 19 bytes, while the average payload size of downstream packets has grown from 37 bytes to 318 bytes. This asymmetry of growing rate is caused by 3D game structure. Packet inter-arrival time becomes shorter from average 2 milliseconds to 58 microseconds. Bandwidth consumption per client has grown from 4 kbps to 20 kbps. We find that there is a linear relationship between the number of users and the bandwidth usage in both case.

• Journal of Biomedical Engineering Research
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• v.24 no.6 s.81
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• pp.543-548
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• 2003

Injuries of wrist in upper extremity is common onset in industrialized world. The development of joint arthroplasty and mechanical joint is area of research for biomechanical engineer and surgeon for a decade. Therefore. the knowledge of characteristic of joint motion is essential to develop the artificial wrist joint. In this study. the joint motions of wrist required for activities of daily living (ADLs). including personal hygiene and care. and general home activity were measured using flexible electrogoniometer. Total of 25 different daily activities were separated into four groups and tested on 15 subjects who did not show any abnormality of their joint functions. The maximum functional range of motion required for ADLs were obtained and standardized for analysis and comparison. Also. a least functional range of motion for ADLs were investigated. Results revealed that any significant differences were not found in least functional range of motion between left and right wrist to perform ADLs. However. a significant difference was found in different ADLs. Therefore. least range of motion obtained in this study can be used as basic data to design artificial joint and set a goal for surgeon to achieve appropriate treatment from patients.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.10
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• pp.97-107
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• 2021

Nowadays, with the constant enhancement in the health of the economy, the average income and living standard have accordingly increased, making the need for financial independence a favorable choice. This research aims to identify the factors affecting the financial independence of young people. The authors implement quantitative analysis, with a set of primary data collected from a survey of 2664 Vietnamese people aged from 18 to 28. The research results demonstrate the considerable impact of monetary, psychological, group-related, and family-related factors on the financial independence of young people. The results of the sample analysis provide adequate evidence to reject the correlative relationship between family and group factors and the financial independence of young people. In addition, there are 3 factors, including demographic factors, monetary factors, and psychological factors, all have varying degrees and directions of influence on young people's financial independence. Most of the mentioned variables reflect a positive effect on financial independence. The only exception is the education variable, illustrated by its negative standardized beta value. A significant difference in financial independence between genders also is reported, suggesting that males seem to have a higher level of financial independence than females.