• Korean Journal of Construction Engineering and Management
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• v.14 no.6
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• pp.38-48
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• 2013

Focusing on repetitive works of construction, many research have been conducted about application of the learning curve effect. However, it is still controversial, especially on the high-rise project, since the productivity improvement from the learning curve effects are hard to prove. In the previous research, applicability of the learning curve was mainly derived from the labor productivity data. Although the research were based on the real data, they merely concentrated on the simple conclusion that the labor productivity had improved or not, instead of the process interpretation. Therefore, the purpose of this research is to analyze the influence factors of the learning curve effect in high-rise projects and elucidate the offset factors of the effect. Based on these factors, a model for estimating the labor productivity containing the concept of process learning is suggested. Through our research, traditional learning curve theory could be compensated and re-established with having more appropriateness for high-rise projects.

• Journal of the Society of Disaster Information
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• v.19 no.3
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• pp.597-607
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• 2023

Purpose: The Ministry of Employment and Labor has been working hard to ensure the safety of workers due to heavy rain during natural disasters as the responsible ministry in charge of preventing industrial accidents and health problems for workers. Accordingly, the Ministry of Employment and Labor intends to analyze actual cases of responding to heavy rain disasters and suggest ways to improve the response system. Method: An emergency response system implemented to respond to heavy rain disasters with an internal expert group composed of those in charge of disaster work at headquarters, local government offices, and Korea Occupational Safety and Health Agency, and an external expert group composed of professors, consulting representatives, and disaster managers from other ministries. Contents on self-inspection by industry, workplace inspection, use of serious siren, safety management and restoration work guidance were reviewed. Result: First of all, it is necessary to check the regular contact system from time to time, and it is also necessary to prepare and distribute detailed self-checklists for each industry. In addition, it is necessary to check the implementation of self-inspection when inspecting workplaces, and it seems necessary to have measures to increase the readability of information notified through serious disaster sirens. In addition, since safety work is done in the form of a contract, it seems necessary to prepare specific safety guidelines. Conclusion: In order to protect the lives of workers due to seasonal harm and risk factors, unlike the passive coping methods of the past, abnormal weather should not be regarded as an unexpected situation, and it should be actively and preemptively responding beyond the conventional framework.

• Journal of Distribution Science
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• v.9 no.4
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• pp.75-82
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• 2011

Along with economic development, the service industry is growing as days go by. Therefore, companies should maximize customer satisfaction through continuous changes by providing services which are suitable for customer needs. The general service industry has a decisive effect on the rate of growth and profitability of a superior business. Therefore, many companies try to provide the best customer service to increase profitability. Because service to a customer is delivered through interactions with the employee, the employee's attitude has a strong influence on the customer's satisfaction level. For these, most service industries are required to provide new types of labor. It is often referred to 'Emotional Labor', and that is different from physical and mental labor. Service providers always provide a service for the customers with a smile, even though they conceal their emotions. The Purpose of this study is to identify theologically the fact of that Sales Workers at Department Stores emotional labor, according to the economization of service, has become to decide the predominance of competition among companies and represents the quality of service ; to confirm that their emotion management is a crucial part of the work; to identify the correlation among job stress and job satisfaction which are experienced in the process of performing display rules required by organization. To practice them, this study deals with the theological consideration of the emotional labor, job stress and job satisfaction. This study proceeded to evaluate how the emotional labor of sales workers at department stores effected on their job stress and satisfaction. The result of this study will be summarized below. First of all, the frequency of emotional display and attentiveness required to display emotions both have a similar effect on the level of job stress. In the case of the emotional dissonance, there isn't a great amount of proof that it effects the job stress. That shows us that the aspect of the latter, they express the feelings on their daily lives less than the former by the public awareness and gaze. so, once they could accept the latter, the effect on the job stress would be vanished. Second, a study was performed to figure out the effect of emotional labor on job stress. As a result, none of them make negative effects on the job satisfaction but the attentiveness to required display rules even have positive effects on it. that means the emotional labor has an indirect effect on the job satisfaction through some intermediation stuff. Third, the role conflict of job stress factors has a negative effect on job satisfaction, Although role ambiguity has a negative effect on that as well, I couldn't find appropriate proof for that. As far as I figured out, job stress can only increase job dissatisfaction. In other hands, the sales workers would have tendencies to have more motivation to work hard rather than reveal their job stress and complain about work. Finally, emotional laborers always work close to job stress. This can maximize service for the customers, but it increases stress of the laborers providing services at the same time. Then, they can not provide high quality service. It is no doubt that we need to begin managing it systematically. In conclusion, the work satisfaction of the sales workers is connected to the service quality for the customers directly.

• Journal of Biosystems Engineering
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• v.24 no.2
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• pp.167-178
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• 1999

In the path of agricultural development, agricultural mechanization has played some decisive roles such as protecting natural disaster, substitution of labor shortage in agricultural production and so on. In making our country's agricultural mechanization plan, Japanese agricultural mechanization policy has been frequently referred to but it's very hard to find informative data for systematic analysis of the mechanization policy. In this paper it was tried to analyze the resent trend in Japanese agricultural mechanization policy and it's performance with many materials published in Japan. As the results, four things are recommended to be considered in making Korean agricultural mechanization policy. First, faster enlargement of agricultural machinery size in Korea might be very harmful to drop down agricultural production cost. Second, diverse utilization methods of agricultural machniery should be introduced. Third, a marketing of the used agricultural machinery must be activated to reduce agricultural production cost. Lastly, the joint R & D for developing low price agricultural machniery is necessary for small markets.

• IEMEK Journal of Embedded Systems and Applications
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• v.11 no.1
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• pp.15-20
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• 2016

Recently, the u-IT applications for plants and livestock become larger and control of livestock farm environment has been used important in the field of industry. We implemented wireless sensor networks and farm environment automatic control system for applying to the breeding barn environment by calculating the THI index. First, we gathered environmental information like livestock object temperature, heart rate and momentum. And we also collected the farm environment data including temperature, humidity and illuminance for calculating the THI index. Then we provide accurate control action roof open and electric fan in of intelligent farm to keep the best state automatically by using collected data. We believed this technology can improve industrial competitiveness through the u-IT based smart integrated management system introduction for industry aversion and dairy industries labor shortages due to hard work and old ageing.

• The Journal of Korean Medical History
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• v.20 no.1
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• pp.88-95
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• 2007

External treatments have various curative effects. According to the existing researches, We have read that many external treatments have been related to obstertic and gynecologic diseases. But systemic description is very rare about external treatment of obstertic and gynecologic diseases. Therefore we would like to describe that. We have found out many sentences that have been related to external treatments about complicating childbirth and the puerperium. Comparatively often had been refered diseases are Hard Labor(難産), Dizziness(血暈) and Metroptosis(玉門不斂).

• Korean Journal of Organic Agriculture
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• v.6 no.2
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• pp.81-106
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• 1998

This study aims to point out what is the basic idea and principle of weed control in or-ganic farming. The korean organic agriculture gets a point in dispute on weed control, be-cause 1) they do not practice the Basic Standard of IFOAM and FAO/WHO Codex Guidelines(draft), and 2) Korean organic farming is defined quite differently from internationally recognized core aspects for organic agriculture. Organic farming, in Korea, is taken to mean just the replacement of chemical fertilizer by organic manure and a-voidance of agricultural chemicals without practicing on rotation, cropping system and so on. As a consequence, organic farmers in Korea are suffering from hard labor to control the weed. In the paper it is discussed on organical weed control method which are required in the Basic Standard of IFOAM and guidelined in the Organic Production Principles of FAO/WHO Codex draft, and furthermore the single or combination effect of those method are also discussed. In conclusion it is suggest the necessity, purpose, and effect of the introduction of the basic stan-dard to korean organic agriculture including organical weed control.

• Journal of the Ergonomics Society of Korea
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• v.11 no.1
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• pp.31-38
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• 1992

The population of aged people in industries has been increased remarkably due to the decline of birth rates and the increase of average life span. Also, the current automation trends makes aged people to work easy in industries since automation technologies help them to avoid physically hard tasks. Therefore the evaluation of aged workers' adaptability would be an important research topic. In the study, the mean and standard deviation of the reaction time are calculated to see the differences with four lamps's types and ages. It is found that the mean reaction time and the standard deviation are increased with the the increase of age. The quantitative approach provides an important information to be used not only for the adaptability estimation of aged workers but also for the working capability qualification for re-employment.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2003.11a
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• pp.251-257
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• 2003

The purpose of this research is to analyse the relationship between the types of supplied apartment plans and the dweller's remodelling of their housework space. Major findings of this research are as fellows: 1. The concept of house wort space has been greatly changed according to the evolution of socio-economic situation. 2. Increasing trend of remodelling activities for house work space is closely related with the housewife's changing attitude on the concept of house work, that is, the change from hard labor to enjoyable object. 3. The concern for house work space remodelling has been increased since 1980's, which is closely related with the appearance of consumer oriented housing market environment.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2017.05a
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• pp.272-273
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• 2017

As businesses put a greater emphasis on outward appearances, the demand for external window cleaning has been on the rise. However, with the conventional labor-intensive window cleaning method, it is hard to meet this demand. Therefore, this study proposes a Life Cycle Cost (LCC) analysis model for a guiderail-type cleaning robot, and estimate the LCCs of the conventional method and the cleaning robot. The findings of this research are expected to serve as a guide for future development of a cleaning robot.