본 연구는 2003년 8월부터 2005년 12월까지 농촌진흥청 난지농업연구소의 기존 혼파 방목초지(해발 200m)에서 실시하였으며 방목 혼파초지에 우분퇴비 시용에 따른 사초생산성 및 토양 개선 효과를 구명하기 위하여 수행되었다. 화학비료 단용구, 우분퇴비 단용구, 화학 및 우분퇴비의 시용수준, 화학비료와 퇴비의 연차별 교호시용 등의 처리를 두어 우분퇴비 시용이 혼파초지의 사초생산성 및 토양성분에 미치는 영향을 조사하였다. 연간 총건물수량을 비교해보면 시

This fundamental studies on for the productivity improvement and laborsaving of purse seine fishery. Given the difficulty posed from the distortion of net shape caused by the external forces, such as tide, at the time of shooting and pursing, we set the 4 steps of 0, 2, 4 and 6cm/sec in flow velocity in the flume tank for the experiment in order to examine those characteristics. We used two model seines designed on the scale of 1 to 180 based on the power block seine, which is the mackerel purse seine generally used in the near sea of Jeju Island and triplex seine, which is the mackerel purse seine of one boat system fishing expected in the future, for the experiment, and interpreted the characteristics of several motion in water, such as the shape of seine, the change in tension and area during pursing and its the analysis results are as follows. Though the experiment could be conducted up to 6cm/sec of flow velocity that was defined, the experiment could not go on because of the severe distortion in the seine at the flow velocity in excess of 6cm/sec. As for the depth of leadline and reduction rate of side area of seine when the pursing is connected, P seine turned out to be slightly higher than T seine, and the hauling speed and reduction rate of upper area of seine were found similar to each other. The correlation between the hauling time (Ht) and depth of lead line (Dhp, Dht) of P seine and T seine can be expressed by the equation, that is, Dhp=(0.99Pt-7.63)Pt+69.01, Dht=(1.03Pt-7.73)Pt+66.74. The correlation between the hauling time and hauling velocity (Hpp, Hpt) can be expressed by the equation, that is, Hpp=-0.06Ht2+0.88Ht+0.78, Hpt=-0.05Ht2+0.81Ht+0.98 here, Pt is pursing time. And the correlation between the pursing time and the reduction rate of side area (sArp, sArt) can be expressed by the equation, that is, sArp=-0.48Pt2+14.79Pt-16.74, sArt=-0.45Pt2+14.56Pt-16.48. The reduction rate of upper area of seine (tArp, tArt) can be expressed by the equation, that is, tArp=0.34Pt2-0.66Pt-0.74, tArt=0.34Pt2-0.27Pt-1.80. In addition, the correlation between the pursing time and tension of purse line (Tep, Tet) can be expressed by the equation, that is, Tep=2.79Pt2+2.26Pt-0.60, Tet=2.14Pt2+8.08Pt-27.50.

It is the basic studies for productivity improvement and laborsaving of purse seine fishery. Because the seine shape is apt to be transformed in seine shooting process due to the effect of tide, this study is intended to establish 4 steps, whose flow velocity are 0, 2, 4 and 6cm/sec, in flume tank and perform the experiment to review the character. We used two model seines designed on the scale of 1 to 180 based on the power block seine, which is the mackerel purse seine generally used in the near sea of Jeju Island and triplex seine, which is the mackerel purse seine of one boat system fishing expected in the future, for the experiment, analyzed of the sinking movements on the two seines and its results are as follows. In the setting over the flow velocity 6cm/sec, experiment was impossible because of flying and transformation of seine were severe. The sinking movements of P seine and T seine generally showed linear phenomenon and the sinking speed showed gentle curve shape. Sinking tendency was distinguished by existence of flow velocity. When there is flow velocity, it showed the phenomenon that it sinking by similar type. Although sinking depth and sinking speed did not show distinguished classification, P seine shows bigger than T seine. When there was in flow velocity, the elapsed time(Et) and sinking depth (PDp, TDp) of P seine and T seine can be shown such experimental equations as PDp=(0.21V+4.96)Et-(0.62V-0.10) and TDp=(0.19V+4.95)Et-(0.72V+0.34). When there was in flow velocity, the elapsed time and siking speed (PSp, TSp) of P seine and T seine can be shown such experimental equations as PSp=-0.11Et2+1.42Et+1.75 and TSp=-0.11Et2+1.41Et+1.37.

본 시험은 제주도내 발생하는 돈분액비의 활용도를 높이고 화학비료 사용 절감 및 대처하는 목적으로 수행되어졌다. 품종간의 건물수량은 수수수단그라스가 로 가장 높았으며, 수수수수교잡종이 1,444.9.5 kg/10a, 옥수수 1,054.6 kg/10a로 나타났다.(p<0.01). 처리별 건물수량은 미생물제제를 처리한 돈분액비가 1,562 kg/10a로 높게 나타났으며, 돈분액비 시용구는 1,410 kg/10a, 화학비료구 1,008 kg/10a로 나타났다(

본 연구는 가축분뇨의 종류와 시용수준에 따른 사일리지용 옥수수의 생산성과 N과 P의 용탈량을 조사하여 친환경 조사료 생산을 위한 기초자료를 제공하기 위해 수행되었다. 본 시험은 건국대학교 초지 시험포장 내의 사양토로 충전된 Lysimeter(직경 30cm, 깊이 1m)를 이용하여 화학비료, 우분액비 및 톱밥발효돈분에 대하여, N 시용수준을 100kg/ha, 200kg/ha, 400kg/ha씩으로 시험구를 배치 수행하였다. 옥수수 건물 및 질소 생산성은

New product line with additional secondary operation of oil pump rotor was built in necessity of increasing capacity. This new line includes steam treatment process after sizing. The new line achieved 1.6 times higher performance compared with a conventional line.

Filling of the tool die directly influences dimensional tolerances and density variation. To minimize the variations in filling, both within different sections of the cavity and from part to part, are of great importance for produce high quality P/M parts. Filling of the tool die is also one of the limiting factors in the productivity in powder pressing. By using aeration filling in combination with bonded powder mixes, both weight scatter and productivity can be improved. In this presentation results are presented showing the benefit of using aeration filling for different types of powders

The objectives of this study are to analyze the productivity of prison labor and to derive some implications through comparisons with productivities of small and medium sized enterprise in free market economy in order to improve the quality of prison labor. Fundamentally, the aim of prison labor is the rehabilitation of prisoners, while that of private enterprise is maximizing the profits. Thus, there lie some limitations in comparing the productivity of these two. Goods and services produced by prisoners are in market competing with those by private sectors.However, according to this study, the productivity and the capital investment efficiency of prison labor are very low comparing to the private sectors. Therefore, in order for the prison labor to have a competitive edge, more effort will be required to improve its technology and productivity. Further study will also be needed to devise various programs for improvement of prison labor.

As aging society makes rapid progress, various social problems arise. The drop of productive labor and the increase of welfare cost can be taken as examples. From this point of view, a use of aged labor is a matter of great Important to national productivity improvement. But, the participation rate of the aged in economical activity amounts to 49.8 percent and their unemployment rate does 2.1 percent. The purpose of this paper is to analyze the deterioration of skill and the lowering of adaption to new working environments due to aging. Since the aging effect is closely related to worker's productivity, it should be properly measured and analyzed. The coordination tester is used to find out activity limitations. Experimental results show that the expert skill of the workers can be improved through the effective of their experience. Therefore we can say that some operation is not influenced by aging.

  This paper considers a six sigma project for improving productivity of the brace complement center pillar. The project follows a disciplined process of five phases: define, measure, analyze, improve, and control. A process map is used to identify proces

본 시험은 이탈리안 라이그라스 내한성 품종을 육성하기 위하여 1997년부터 2002년까지 축산기술연구소 초지사료과에서 수행되었으며, 이탈리안 라이그라스 신품종 "화산 104호"는 2002년 직무육성신품종선정심의회에서 명명되었다. "화산 104호"는 4배체 품종으로서 엽의 색은 농녹이며, 월동전 초형은 반부복형, 봄의 초형은 중간형이다. 특히, "화산 104호"는 "화산 101호" 보다 지엽의 폭과 길이가 넓고 길며, 초장이 105cm로 화산 101호 보

본 연구는 돈분액비로 답리작 사료작물을 재배하여 수확한 다음 돈분액비 시용이 후작물인 벼의 생산성에 미치는 영향을 조사하고자 1999년 11월부터 2002년 11월 사이에 수행되었다. 돈분액비와 화학비료는 답리작물인 호밀 파종전과 봄 생육재생기 이전에 시용하였는데, 화학비료 대비 돈분액비의 수준은 N를 기준으로 하였다. 처리는 화학비료 시용구, 돈분액비 시용구, 돈분액비 시용구, 화학비료 +돈분액비 시용구로 4처리 완전임의배치 3반복으로 배치하였다. 호

The manufacturing industries which played a major role in the rapid economic growth and industrialization of Korea in the late 20th century had considerable difficulties changing their manufacturing conditions from producer-oriented conditions to customer-oriented ones according to market changes. In this study, increase plant efficiency because grafts together modular system to plant layout and analyzes Work In Process(WIP) between product's cycle time and each process, family efficient plan wishes to choose opposite bank. Simulation approach used for presented methodology The effect will not gain the results for other reasons the inherent conditions of companies, people, and culture which have been hitherto described, but will be expected to help the direction for a new Lay-out production system to reflect on the native conditions rather than fixed technological means and methods in way of an analysis of fundamental problems which small and medium companies in Korea face.

All machines and systems in a firm should be managed for optimizing its productivity. Actually, however, it is hard to manage the machines of a firm in collective methods because the company making each machine varies and the way maintaining each machine is various. As a machine Is out of order, the machine is fixed by the repair person from the company making the machine. Every time comes repair person to fix a machine firm having the machine would experience time loss and cost loss. Therefore, a firm needs to manage blueprint of their machine to reduce loss in time and cost and to maintain their facilities in TPM(Total Productive Management) to make operators manage directly. In this study, we suggest the method to manage a blueprint of a machine with TPM.