군위지역의 돈사를 중심으로 농업시설의 비활용 공간인 지붕을 활용하기 위한 기초자료로써 지붕의 방위각, 경사각 및 농지의 분류에 따른 문제점을 분석하였다. 또한 비표준형 돈사의 구조해석과 보강방안에 대한 대책을 강구하였고, 태양에너지 생산을 위한 지붕의 방위각과 위도에 따른 일사량을 측정한 결과는 다음과 같다. 돈사의 농지의 분류에 따른 결과는 군위지역 돈사의 경우 농림지역을 제외한 곳은 47.8%이었으며 적정 방위각으로 분류하면 21.7%가 활용 가능하였다. 그러나 농지와 방위각을 모두 고려한 조사에서는 10.9%만이 가능하여 돈사의 약 90%는 지붕의 활용이 부적합 한 것으로 판단되었다. 돈사의 지붕 경사각에서는 총 46호 중 10°∼15°가 17호로 가장 많았으며, 20°미만인 경우가 전체의 63%에 해당되었다. 20°이상인 곳은 16호로 전체의 약 35%로 나타나 전반적으로 지붕각은 완만하게 건축되었다. 따라서 돈사의 경우 일사량을 고려하여 태양에너지 설비를 할 경우 최소한 약 4∼5° 정도 지붕경사각이 낮음을 알 수 있었다. 비표준형 돈사에 대한 구조해석을 통하여 보강방안에 대한 대책을 강구하였다. 지붕의 방위각과 위도에 따른 일사량의 측정에서는 정남방향을 기준으로 위도가 27.5°∼50°까지 비교적 높게 나타났으며, 위도를 0°로 고정하였을 경우, 방위각은 S22.5W와 S22.5E에서 높은 것을 알 수 있었다. 따라서 적정 지붕의 경사각은 25°이상으로 건축하는 것이 유리한 것으로 판단되었다.

This paper considers a parallel-machine scheduling problem with dedicated and common processing machines using GA (Genetic Algorithm). Non-identical setup times, processing times and order lot size are assumed for each machine. The GA is proposed to minimize the total-tardiness objective measure. In this paper, heuristic algorithms including EDD (Earliest Due-Date), SPT (Shortest Processing Time) and LPT (Longest Processing Time) are compared with GA. The effectiveness and suitability of the GA are derived and tested through computational experiments.

Plant management have a greatest influence on the corporate variety of tasks such as production, quality, environment. So, various performance indices for plant management are operating. But plant management tasks can be carried out effectively, so that all of how to organize and efficiently manage indicators is lacking real condition In this paper, improved profitability, cost savings by applying the concept for the performance assessment, plant management services, such as the key indices for performance according to the objectives of the firm. Dashboard for plant management work using me to develop a system that manage.

In case of many products placed on the production line in automobile production, some line is personnel visually identifiable, such as CCTV, while the rest areas are not identifiable. However, because the position of accidents is not scheduled and every accidents should be analyzed at every point, every accidents is not easy because you need to an immediate response. The record cause of the accident is difficult to understand, not until after the accident for the accident cause analysis of fragmentary and mechanical information so that future accidents have difficulty measures be established. To prevent this, the car accident occurred in the manufacturing plant personnel to deploy and monitor in every area of enterprise is too burdensome labor costs too high. In this study, automated car production plant and load transfer system crash, accident collision and records are available for real-time wireless transmission, the administrator determines that situation can be immediately developed the electronic mono rail system(EMS). You will start to develop the control of EMS and stop control is critical for the correct parts first perform CAE analysis to develop a prototype

The objective of this study is to calculate flow characteristics and structural safety for triple offset eccentric butterfly valve. The triple offset butterfly valve used in this study was 600mm in size, and the opening angles were 30 degree, 60degree and 90 degree. Structural and flow analysis of triple offset eccentric butterfly valve are carried out by using commercial code ANSYS and CFX version 14. The flow coefficient, Kv, increases as the valve opening increases. The results from fluid structure coupled analysis, maximum equivalent stress was calculated 462.06MPa at opening angle 60 degree

Most of metal cutting and processing companies are going through the difficulties such as frequent downtime and high failure rates by missing times to replace parts of CNC equipment. The reason is that the correct operation times of expensive CNC equipment can’t be calculated. In this paper, to solve this problem, we try to construct the intelligent production information system for a case company and analyze its expected effects. The effects are as follows. First, it saves money about 3 million won each year during the useful life of three years by reducing downtime and failure rates, and increasing production rates etc. Second, it makes easily find and fix the cause of faulty through traceability of the production process, and enables to perform a systematic facility management through the calculation of reliable equipment’s overall efficiency. This case can be easily applied in similar industries, and will contribute greatly to enhancing the competitiveness of related industries.

The residents'odor complaint is steadily increasing by odor causing from sewage system. A current drainage facilities and septic tank are included in the individual sewerage according to Sewerage Act. However, definitions and legal standards of drainage tank are insufficient. In addition, specifications and maintenance standards related to structure and size are not established.In this research, effect of drainage tank in individual sewage facilities on the odor occurrence was studied and the concentrations of H2S and composite odor were measured.From the measurements, the concentration of H2S and composite odor were 1 ppm ~ 5 ppm and 1.04 OU ~ 4.05 OU, respectively, before pump operation. Also, the concentration of H2S and composite odor were 5 ppm ~ 33 ppm and 5.10 OU ~ 35.04 OU, respectively, after pump operation. The concentration of SS in the effluent from drainage tank was ranged from 840 mg/L to 1,980 mg/L. These high concentration of SS seemed to be the major source of foul smell when high concentrated suspended solids in the public sewerage system were decomposed and then emitted.In this research, correlation coefficient (R2) between H2S and composite odor before and after pumping were 0.925 and 0.918, respectively.

Most of metal cutting and processing companies are frequently used to mass-produce defectives by missing times to replace parts of CNC equipment. The reason is that the correct operation times of expensive CNC equipment can’t be calculated. In this paper, to solve these problems, we construct the intelligent production information system and analyze the expected effects.