In recent years, business environment is faced with multi uncertainty that have not been suffered in the past. As supply chain is getting expanded and longer, the flow of information, material and production is also being complicated. It is well known that development service industry using application software has various uncertainty in random events such as supply and demand fluctuation of developer’s capcity, project effective date after winning a contract, manpower cost (or revenue), subcontract cost (or purchase), and overrun due to developer’s skill-level. This study intends to social contribution through attempts to optimize enterprise’s goal by supply chain management platform to balance demand and supply and stochastic programming which is basically applied in order to solve uncertainty considering economical and operational risk at solution supplier. In Particular, this study emphasizes to determine allocation of internal and external manpower of developers using S&OP (Sales & Operations Planning) as monthly resource input has constraint on resource’s capability that shared in industry or task. This study is to verify how Stochastic Programming such as Markowitz’s MV (Mean Variance) model or 2-Stage Recourse Model is flexible and efficient than Deterministic Programming in software enterprise field by experiment with process and data from service industry which is manufacturing software and performing projects. In addition, this study is also to analysis how profit and labor input plan according to scope of uncertainty is changed based on Pareto Optimal, then lastly it is to enumerate limitation of the study extracted drawback which can be happened in real business environment and to contribute direction in future research considering another applicable methodology.

We investigated dilution ratio values of the threshold limit (DRVTL) and 12 odorous compounds from a number of emission points (stack and process) and boundary areas of 10 chemical industries in the Ban-Woll and Shi-Wha Industrial Complex in Gyeonggi Province. The results of our study suggest that differences in odor emission concentrations are caused by such as factors as : suitability and operational conditions of prevention equipment, suitability hood of process and exhaust ventilation system, differences of raw materials of chemical industry. It was found that trimethylamine and hydrogen sulfide recorded the highest contribution from two types of emission points (stack and process), respectively. Show some actual concentration values here, hydrogen sulfide recorded its maximum values from leather industry, while trimethylamine for hexamine production industry. On the other hand, the results of dimethyl sulfide, dimethyl disulfide and methyl mercaptan were not useful, as their concentrations were not significantly high enough to judge from such respect. In the view-point of dilution ratio values of the threshold limit, the average emission ratio of stack and process from 10 chemical industries was 57, 43%, respectively. Therefore, it is important that the odor emission value from process and stack have to minimize and regulate for management of industrial odor.

본 연구는 국내의 자연생태계에 확산되고 있는 외래 기생식물인 미국실새삼의 분포와 그에 따른 생육지의 유형을 구분하여 기주식물을 조사하고, 그에 따른 생태계 영향을 파악함으로써 미국실새삼의 확산 저감을 위한 관리 계획을 수립하는데 기초가 되는 자료를 제공하고자 하였다. 미국실새삼의 분포는 전국적으로 확산이 이루어지고 있으며 주요 생육지 유형은 경작지변(54.3%), 도로변 나지(41.3%), 인공초지(4.3%) 등 3가지로 구분되었다. 총 37과 95속 119종 10변종 1아종 등 130분류군의 기주식물이 확인되었으며, 목본식물이 4.6%를 차지하고 외래식물은 30분류군으로 전체 기주식물 중 23%로 나타났다. 기주식물의 생활형을 분석한 결과 일년생식물(Th)이 68분류군, 52.3%로 가장 높게 출현 하여 미국실새삼의 생육지가 교란이 많이 일어나는 지역임을 확인할 수 있었다. 기주식물 중 유용식물을 분석한 결과 총 90분류군으로 기주식물 중 69.2%를 차지하였으며, 식용자원 59(45.4%)분류군, 약용자원 54분류군(41.5%), 공업용과 관상용자원이 13분류군(10%), 초지자원 9분류군(6.9%)으로 확인되었다.

본 연구는 가죽나무의 확산에 필수적으로 요구되는 공간분포를 조사하고 입지특성, 식물상 분석을 실시하여 관리에 유용한 정보를 제공하는데 목적이 있다. 조사지점은 군락의 우점도가 높고, 생육입지가 균질한 유형을 고려하여 김천, 산청과 양평의 3장소를 선정하여 Line-transect 방법으로 전수조사를 실시하였다. 분포 면적 크기는 양평 1,435 m2, 김천 1,118 m2, 산청 760 m2 순으로 확인되었으며 총 510개체가 공간상에서 무작위(random)적으로 분포하는 것으로 나타났다. 전체 흉고직경(DBH) 계급범위(Class) 중 I(1.0-3.4 cm), II(3.5-6.4 cm))에 포함되는 가죽나무는 평균 83.2%로 가죽나무군락은 직경이 작은 개체가 우점하며 생육지의 교란정도에 따른 분포 패턴이 밝혀졌다. 식물상은 총 43과 75속 91종이 조사되었으며 3지역 모두 일년생식물(Th)이 가장 높게 나타나, 생육지가 최근에 교란이 발생된 지역임을 알 수 있었다. 가죽나무개체군의 확산을 방지하기 위해선 도로변 개체군 제거와 동시에 산지개체군제거가 필요할 것으로 판단되었다.