http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Experimental Study on the Structural Safety of the Corn Harvester Attached to a Tractor
Chang-Seop Shin(신창섭),Tae-Yeong Yun(윤태영),Hwon Choi(최훤),TaeHan Kim(김태한) 한국기계가공학회 2020 한국기계가공학회지 Vol.19 No.2
In South Korea, agricultural mechanization has been carried out in paddy field, but not in the upland field during recent decades. Among crops such as root vegetables, leafy vegetables from upland field, corn is used as forage for livestock as well as food for men. The corn harvester needs to be developed to replace men’s labor in rural area to follow the recent needs in the farm industry. The corn harvester is comprised of three parts such as cutting part, feeding part and pick-up part. The feeding part is so long for cut corns to be delivered from the cutting part to the pick-up part. Structurally, the load from the long moment arm is likely to be big. Thus, the setup to measure the stress on the duct of the feeding part was configured with the data acquisition system. The strain gages were attached on several points that seem to be loaded a lot comparatively. The stress was measured and the measured stresses were divided by the yield stress to get the safety factor. And then, we made sure the safety factors were above 1 on the all points. In conclusion, the feeding part of the corn harvester which convey the cut corn from the cutting part from the pick-up part can be regarded to be made safe structurally.
Chang-Seop Shin(신창섭),Jun-Hee Kim(김준희),Yu-Shin Ha(하유신),Tusan Park(박두산) 한국기계가공학회 2019 한국기계가공학회지 Vol.18 No.4
Recently, due to labor shortages in rural areas within South Korea, the demand for upland-field machinery is growing. In addition, there is a lack of development of systematic performance testing of upland-field machinery. Thus, this study examined structural safety and drawbar pull based on soil properties, as a first step for systematic performance testing on the test bed. First, the properties of soil samples from 10 spots within the experimental site were examined. Second, the strain was measured and converted into stress on 8 points of an onion harvester that are likely to fail. More specifically, the chosen parts are linked to the power, along with the drawbar pull, using a 6-component load cell equipped between the tractor and the onion harvester. The water content of the soil ranged between 5.7%-7.5%, and the strength between 250-1171 kPa. The test soil was subsequently classified into loam soil based on the size distribution ratio of the sieved soil. The onion harvester can be considered as structurally safe based on the derived safety factor and the drawbar pull of 115-1194 kgf, according to the working speed based on agricultural fieldwork.
신창섭(Shin, Chang-seop) 한국문화산업학회 2015 문화산업연구 Vol.15 No.1
본 논문에서는 음반의 제작 과정에 있어 Mixing과 Mastering이라는 파이널라이징 작업에 관하여 시대의 변화와 흐름에 맞추어 DAW(Digital AudioWorkstation)내의 Plug-In을 이용한 작업의 경제성 및 편의성을 바탕으로 기존 외장 아웃보드 기기들과의 음질 격차를 좁힐 수 있는 파라미터의 적용과 아날로그적 뉘앙스를 배가시키기 위한 기법 연구를 주목적으로 한다. 그리고 여기에 수반되는 DAW시스템 환경의 최적화의 여건을 분석하여 실제 Mixing & Mastering의 작업에 있어서 시스템 리소스의 효율적인 관리 및 운용을 통해 쾌적하고도 안정적인 작업 조건의 방향을 제시하고자 한다. Mixing &Mastering을 위한 Plug-In의 사용에 있어서 그 성능을 인정받았던 외장 아웃보드들을 Plug-In으로 복각시킨 형태의 제품들과 별도의 독립적인 DSP 칩셋을 추가 장착하여 메인 프로세서의 리소스를 차지하지않는 제품들을 우선적으로 선정하여 레코딩 된 멀티 트랙의 Mixing 기법들을 순서에 따라 적용 및 분석하고, 내부 프로세싱에 의한 최종 2트랙의익스포팅과 외장 믹서를 통한 SummingMixing의 결과물을 비교 분석한다. 또한 최종 스테레오 2트랙 마스터링 단계에서의 질감 향상을 위한 이펙팅과 컨트롤 룸의 모니터링 배치 구조를 분석하여 여러 조건에서의 리스닝 환경을 고려한 마스터링에 관하여 연구하도록 한다. This study set out to apply parameters to narrow the gap between the plug-in of a DAW(digital audio workstation) and the existing external outboard instruments in terms of sound quality based on the former"s economy and convenience in an attempt to catch up with the changes and flows of the times in the final touches of albummaking, mixing andmastering. It also aimed to search for techniques tomultiply analogue nuances. By analyzing the conditions of optimizing a DAWsystem environment, it also tried to suggest pleasant and stable work conditions of mixing and mastering through the efficient management and operation of system resources. First selected were the products that turned external outboards, whose functions were recognized in using a plug-in for mixing and mastering, into a plug-in and those which didn"t take up the resources of the main processor by adding a separate, independent DSP chipset. 본 논문에서는 음반의 제작 과정에 있어 Mixing과 Mastering이라는 파이널라이징 작업에 관하여 시대의 변화와 흐름에 맞추어 DAW(Digital AudioWorkstation)내의 Plug-In을 이용한 작업의 경제성 및 편의성을 바탕으로 기존 외장 아웃보드 기기들과의 음질 격차를 좁힐 수 있는 파라미터의 적용과 아날로그적 뉘앙스를 배가시키기 위한 기법 연구를 주목적으로 한다. 그리고 여기에 수반되는 DAW시스템 환경의 최적화의 여건을 분석하여 실제 Mixing & Mastering의 작업에 있어서 시스템 리소스의 효율적인 관리 및 운용을 통해 쾌적하고도 안정적인 작업 조건의 방향을 제시하고자 한다. Mixing &Mastering을 위한 Plug-In의 사용에 있어서 그 성능을 인정받았던 외장 아웃보드들을 Plug-In으로 복각시킨 형태의 제품들과 별도의 독립적인 DSP 칩셋을 추가 장착하여 메인 프로세서의 리소스를 차지하지않는 제품들을 우선적으로 선정하여 레코딩 된 멀티 트랙의 Mixing 기법들을 순서에 따라 적용 및 분석하고, 내부 프로세싱에 의한 최종 2트랙의익스포팅과 외장 믹서를 통한 SummingMixing의 결과물을 비교 분석한다. 또한 최종 스테레오 2트랙 마스터링 단계에서의 질감 향상을 위한 이펙팅과 컨트롤 룸의 모니터링 배치 구조를 분석하여 여러 조건에서의 리스닝 환경을 고려한 마스터링에 관하여 연구하도록 한다. This study set out to apply parameters to narrow the gap between the plug-in of a DAW(digital audio workstation) and the existing external outboard instruments in terms of sound quality based on the former"s economy and convenience in an attempt to catch up with the changes and flows of the times in the final touches of albummaking, mixing andmastering. It also aimed to search for techniques tomultiply analogue nuances. By analyzing the conditions of optimizing a DAWsystem environment, it also tried to suggest pleasant and stable work conditions of mixing and mastering through the efficient management and operation of system resources. First selected were the products that turned external outboards, whose functions were recognized in using a plug-in for mixing and mastering, into a plug-in and those which didn"t take up the resources of the main processor by adding a separate, independent DSP chipset.
Chang-Seop Shin(신창섭),Beom-Soo Kim(김범수),Hyun-Woo Han(한현우),Woo-Jin Chung(정우진),Seung-Je Cho(조승제),Young-Jun Park(박영준) 한국기계가공학회 2019 한국기계가공학회지 Vol.18 No.3
This study was conducted to analyze the stresses by impact loads on front-end loaders attached to tractors using flexible multi-body dynamics. The model was designed and validated by comparing previous experimental data with the simulation data obtained in this study. Nine sets of conditions were designed using three weights (500, 300, and 100 kg) loaded inside a bucket and three heights (1700, 1350, and 1000 mm) of the bucket from ground level. A parametric study was carried out at five locations for two types of parts of a front-end loader. All the safety factors for the five locations under all conditions were calculated and were greater than 1. Thus, the designs of the front-end loaders were structurally safe. Based on this study, front-end loaders attached to tractors can be designed effectively in terms of cost and safety.
Analysis of Air Pollutant Emissions from Agricultural Machinery in South Korea
Chang-Seop Shin(신창섭),Tusan Park(박두산),Dong-Hyuk Hong(홍동혁),TaeHan Kim(김태한) 한국기계가공학회 2019 한국기계가공학회지 Vol.18 No.3
From 2019 onwards, more stringent regulations (from Stage 4 to Stage 5) are to be implemented in Europe in order to reduce the air pollutant emissions. In South Korea, the government authorities started to make new regulation to meet the European regulation. As a first step, the air pollutant emissions such as CO, NOx, SOx, TSP, PM10, PM2.5, VOC, NH3 by agricultural machinery were analyzed based on CAPSS inventory along with the analysis in the general aspect in this study. Three levels of analysis was conducted each in agricultural machinery aspect along with in the general aspect. Per agricultural tractor, all kinds of the air pollutant emissions decreased by 25, 25, 99, 25, 25, 25, 25% for the CO, NOx, SOx, TSP, PM10, VOC, NH₃ emissions each from the year 2000 to the year 2014. Per combine harvester, all kinds of the air pollutant emissions decreased by 63, 63, 91, 63, 63, 63, 63% for the CO, NOx, SOx, TSP, PM10, VOC, NH₃ emissions each from the year 2000 to the year 2014.