• International Journal of Internet, Broadcasting and Communication
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• 제15권1호
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• pp.79-84
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• 2023

Due to the rapid performance improvement of smartphones, multitasking on mobile platforms has become an essential feature. Unlike traditional desktop or server environments, mobile applications are mostly interactive jobs where response time is important, and some applications are classified as real-time jobs with deadlines. When interactive and real-time jobs run concurrently, memory allocation between multitasking applications is a challenging issue as they have different time requirements. In this paper, we study how to allocate memory space when real-time and interactive jobs are simultaneously executed in a smartphone to meet the multitasking requirements between heterogeneous jobs. Specifically, we analyze the memory size required to satisfy the constraints of real-time jobs and present a new model for allocating memory space between heterogeneous multitasking jobs. Trace-driven simulations show that the proposed model provides reasonable performance for interactive jobs while guaranteeing the requirement of real-time jobs.

• 기술혁신연구
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• 제27권1호
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• pp.79-100
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• 2019

제조업이 국가경제에서 차지하는 중요성에도 불구하고 고용비중의 급격한 감소는 한국을 포함한 선진국이 당면한 공통의 문제이다. 그 중에서도 과학기술 일자리는 고용의 질과 산업경쟁력에 직결되기 때문에 정책적 차원에서 중요성하나 이에 대한 선행연구는 미진한 편이다. 본 연구에서는 제조업을 기술체제에 따라 세분화하고 신제품 개발, 신공정 개발, 개방형 혁신, 정부 R&D지원이 과학기술 일자리 창출에 미치는 영향을 분석하였다. 분석결과 신제품 개발은 과학기술 일자리 확대에 기여하나 신공정 개발은 과학기술 일자리를 감소시키는 것으로 확인되었다. 또한 개방형 혁신은 연구개발 기능의 아웃소싱으로 인해 과학기술 일자리를 감소시키는 효과가 있으며, 정부 R&D 지원은 기술혁신에 대한 수요가 낮은 전통산업의 과학기술 일자리 창출에 기여하는 것으로 나타났다.

• 농촌지도와개발
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• 제19권3호
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• pp.673-697
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• 2012

The purpose of this study was to describe the policies and outlooks of the green jobs including the forest area. The Methodology of the study was mainly on literature review and second data used and analyzed to get the result. The findings of the study was the manpower of Green Jobs was 2.5% in 2009, it should be expected to 2.9 percent in 2016, and overall of the green jobs and forest area of the outlooks should be increased from 46 percent to 56 percent in each sector of green and forest area. The climate changes and environmental pollutions would push the conditions of new green jobs in forest area as well as waste-based industry. The suggestions were made based on the study of which one is policy-making should be prepared for creating Green Jobs and the forest area.

• 수산해양교육연구
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• 제20권1호
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• pp.36-45
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• 2008

The purpose of this study was to explore new fisheries-related jobs in the future. The study is based on a thorough literature review and in-depth interviews with experts in the fisheries industry. The major findings of the study were as follows: First, new fisheries-related jobs that surpass the fitness rating of 90% and earn more than 3 on the prospect scale are expected to be found mostly in professional fishery sectors. In the production and processing sectors, fishery quality control manager, marine product cooks, and raw fish cooks looked most promising. In the fishery marketing and distribution section, on the other hand, marine tour consultants, marine product distribution consultants, underwater guides, online marine product traders, marine sports consultants, and marine safety specialists ranked high on the list.

• 아태비즈니스연구
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• 제13권3호
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• pp.329-341
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• 2022

Purpose - The purpose of this study was to investigate consistency in estimating the number of vacant jobs using the two business labor force survey with two different time points of survey. Design/methodology/approach - We studied the cause of the differences in estimating the number of vacant jobs between the monthly sample and the new sample in business labor force survey. Findings - To summarize our findings, As the size of the company increases, the number of vacant jobs in the company also increases, and the probability that the number of vacant jobs in the company is zero decreases. The monthly sample was assessed to have a higher likelihood that the number of vacant jobs in the company was zero and the number of vacant jobs was considerable compared to the local sample. Research implications or Originality - Because local survey sample companies tend to minimize the number of vacant jobs even when they reply under the same conditions, the estimation result of the number of vacant jobs in the current monthly survey differs significantly from the estimation result of the local survey. Divergent "degrees of knowledge of question items," survey methodologies, or investigators could be the causes of the various response trends.

• 한국지역사회생활과학회지
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• 제16권1호
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• pp.21-36
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• 2005

New occupational types, suitable for the elderly, have been developed in order to extend job opportunities for that demographic. However, it was mainly done from the perspective of the urban elderly and did not take into account the rural elderly's needs and the special conditions in rural areas. Especially, as 53.4% of the rural elderly 60 years old and over has engaged in economic activities and 88.7% of them are working in the field of agriculture or forestry, the development on the new kinds of job for the rural elderly is more meaningful as secondary jobs rather than as new occupations. Therefore, this study aimed at developing the new kinds of occupation suitable for the rural elderly. For this purpose, data were collected from 279 elderly farmers 60 years old and over working currently or have ever worked in something other than farming work. Questionnaires were composed to measure preferences for jobs by work characteristics and evaluations on the appropriateness of the jobs for the elderly selected by the Ministry of Labor in Korea. The results showed that the rural elderly preferred work doing at home, together with the elderly, in groups, and light physical labor to technical or office work that must commute regularly. Also, they evaluated that most of the occupations suitable for the elderly announced by the Ministry of Labor were more suitable for the male than the female elderly. Based on these findings, this study selected 18 kinds of individual and 11 common jobs by sex. It may contribute to creating job opportunities for the rural elderly by applying it to the policy or extension, and to revitalizing the rural elderly's lives and increasing their incomes.

• 대한산업공학회지
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• 제1권2호
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• pp.73-81
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• 1975

In an earlier paper ('Scheduling Jobs on a Number of Identical Machines' by Elmaghraby and Park, March 1974, AIIE Transactions) a branch-and-bound algorithm was developed for the sequencing problem when all jobs are available to process at time zero and are independet (i.e., there are not a priori precedence relationships among jobs.). However, the amount of computation required by the algorithm was not considered to be short if more than 50 jobs were processed. As an effort to improve the algorithm, the present paper modifies the implicit enumeration procedure in the algorithm so that moderately large problems can be treated with what appears to be a short computational time. Mainly this paper is concerned with improving the lower bound in the implicit enumeration procedure. The computational experiences with this new branch-and-bound algorithm are given.

• Journal of applied mathematics & informatics
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• 제2권2호
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• pp.21-46
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• 1995

Congestion and memory occupancy in computer system may be reduced further if new jobs are admitted only when the num-ber of jobs queued at CPU is below CPU run queue cutoff (RQ). In this paper we prove that response time of a job is invariant with respect to RQ if jobs do not communicate each other. We also demonstrate this invariance property numerically using marix-geometric methods and present an approximate method for the delay due to context switch-ing under time slicing. The approximation suggests that time slicing with constant overhead yields a throughput similar to an FCFS system without overhead.

• 기술사
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• 제15권2호
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• pp.52-59
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• 1982

This is to intent of the reinforcement proposal for current P.E., qualification code in necessity of improving the foreign technology inducement & technology export between advanced Country and developing or undeveloping Country as Technological Cooperation for mutual benefit. A prosal contains internationally recogniyed general term & conditions of Standard Contract form for Engineering jobs, construction works includings of plant exportation as for additional new basic knowledge for roling of business promotion & finalization in urging of more current jobs internationally to be increment of technological cooperation.

• 대한산업공학회지
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• 제35권4호
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• pp.257-265
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• 2009

This paper considers the hybrid flow shop scheduling problem for the objective of minimizing the number of tardy jobs. In hybrid flow shops, each job is processed through multiple production stages in series, each of which has multiple identical parallel machines. The problem is to determine the allocation of jobs to the parallel machines at each stage as well as the sequence of the jobs assigned to each machine. Due to the complexity of the problem, we suggest search heuristics, tabu search and simulated annealing algorithms with a new method to generate neighborhood solutions. In particular, to evaluate and select neighborhood solutions, three surrogate objectives are additionally suggested because not much difference in the number of tardy jobs can be found among the neighborhoods. To test the performances of the surrogate objective based search heuristics, computational experiments were performed on a number of test instances and the results show that the surrogate objective based search heuristics were better than the original ones. Also, they gave the optimal solutions for most small-size test instances.