http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
전자석 작동기를 이용한 드릴의 선회진동제어 : Control of the Whirling Vibration of the Drill by Electromagnetic Actuator
김중배,이상조,최현 연세대학교 산업기술연구소 1991 논문집 Vol.23 No.2
The drill is the most widely used tool in the world to make holes on the workpiece. But the performance of the drill is affected by many factors. One of them is to get the position of the drill at the beginning of the penetrating stage. The drill vibrates laterally while it rotates. Especially in case of a thin and long drill, the magnitude of the whirling vibration of the drill becomes very large and makes critical problem. Therefore, several methods have been used to get a correct position during drilling process. As an example, center drills or guides are used to make the drill get correct position. But these methods are passive. In this paper, studies for an active control are carried out to get the correct position of the drill by reducing the whirling vibration of the drill which occurs before the drill contacts the workpiece. The active phase lead algorithm is applied in order to control the vibration of a twist drill, which has dimension as follows: diameter φ3 and length 150mm.
VHF Data Link Mode 2 Ground System Supporting The ATS Services Based On The ACARS Over AVLC (AOA)
Hyoun-Kyoung Kim,Tae-Sik Kim,Joong-Won Bae 대한전자공학회 2008 ITC-CSCC :International Technical Conference on Ci Vol.2008 No.7
KARI is developing the VDL M2 system with a simple ATS application system for test and future use. Now, the design and implementation of the system is finishing and the unit tests for the each sub systems are finished. KARI is preparing the ground test and flight test. This paper mainly describes the status of the development of the ground VDL M2 system.
Kim Sang Hyun,Kim Hyun Joong,Kim Su Hyun,Jung Hee Ju,Kim Byungchan,Cho Do-Hyun,Jeon Jong-Min,Yoon Jeong-Jun,Kim Sang-Hyoun,Park Jeong-Hoon,Bhatia Shashi Kant,Yang Yung-Hun 한국미생물·생명공학회 2023 Journal of microbiology and biotechnology Vol.33 No.5
Identification of novel, electricity-producing bacteria has garnered remarkable interest because of the various applications of electricigens in microbial fuel cell and bioelectrochemical systems. Shewanella marisflavi BBL25, an electricity-generating microorganism, uses various carbon sources and shows broader sugar utilization than the better-known S. oneidensis MR-1. To determine the sugar-utilizing genes and electricity production and transfer system in S. marisflavi BBL25, we performed an in-depth analysis using whole-genome sequencing. We identified various genes associated with carbon source utilization and the electron transfer system, similar to those of S. oneidensis MR-1. In addition, we identified genes related to hydrogen production systems in S. marisflavi BBL25, which were different from those in S. oneidensis MR-1. When we cultured S. marisflavi BBL25 under anaerobic conditions, the strain produced 427.58 ± 5.85 μl of biohydrogen from pyruvate and 877.43 ± 28.53 μl from xylose. As S. oneidensis MR-1 could not utilize glucose well, we introduced the glk gene from S. marisflavi BBL25 into S. oneidensis MR-1, resulting in a 117.35% increase in growth and a 17.64% increase in glucose consumption. The results of S. marisflavi BBL25 genome sequencing aided in the understanding of sugar utilization, electron transfer systems, and hydrogen production systems in other Shewanella species.
KIM, JEONGEUN,KIM. SUKWHA,KIM, HEE-CHAN,KIM, KYUNG-HWAN,YANG, SEOK-CHUL,LEE, CHOON-TAEK,KONG, HYOUN-JOONG,LEE, KYUNGSOON Lippincott Williams Wilkins 2012 Computers, informatics, nursing Vol.30 No.12
<P> Through the use of ubiquitous health, or u-Health, services, medical information can be adapted and made accessible via computer and Internet to provide quality healthcare to anybody, any place, and any time. We developed and implemented u-Health services for patients with chronic obstructive pulmonary disease and studied their experiences with respect to their knowledge of chronic obstructive pulmonary disease and skill and attitude toward the u-Health devices. The u-Health services were composed of telemonitoring and teleconsultation supplemented with home visits. To determine its effectiveness, the u-Health service system was implemented for 2 years with 144 chronic obstructive pulmonary disease patients in a clinical experiment. The subjects were divided into three experimental groups, each provided with different services, compared before and after intervention, and among groups. The analysis of data gathered through the system suggested that u-Health services can support patients with chronic obstructive pulmonary disease, improve patients’ knowledge about chronic obstructive pulmonary disease self-management, build u-Health device usage skills, and foster a positive attitude toward u-Health devices. The u-Health services for the chronic obstructive pulmonary disease patients were both feasible and effective from the patients' perspective. </P>
Kim, Backki,Kim, Dong-Gwan,Lee, Gileung,Seo, Jeonghwan,Choi, Ik-Young,Choi, Beom-Soon,Yang, Tae-Jin,Kim, Kwang Soo,Lee, Joohyun,Chin, Joong Hyoun,Koh, Hee-Jong Springer New York 2014 Rice Vol.7 No.-
<P><B>Background</B></P><P>Tongil (IR667-98-1-2) rice, developed in 1972, is a high-yield rice variety derived from a three-way cross between <I>indica</I> and <I>japonica</I> varieties. Tongil contributed to the self-sufficiency of staple food production in Korea during a period known as the `Korean Green Revolution'. We analyzed the nucleotide-level genome structure of Tongil rice and compared it to those of the parental varieties.</P><P><B>Results</B></P><P>A total of 17.3 billion Illumina Hiseq reads, 47× genome coverage, were generated for Tongil rice. Three parental accessions of Tongil rice, two <I>indica</I> types and one <I>japonica</I> type, were also sequenced at approximately 30x genome coverage. A total of 2,149,991 SNPs were detected between Tongil and Nipponbare varieties. The average SNP frequency of Tongil was 5.77 per kb. Genome composition was determined based on SNP data by comparing Tongil with three parental genome sequences using the sliding window approach. Analyses revealed that 91.8% of the Tongil genome originated from the <I>indica</I> parents and 7.9% from the <I>japonica</I> parent. Copy numbers of SSR motifs, ORF gene distribution throughout the whole genome, gene ontology (GO) annotation, and some yield-related QTLs or gene locations were also comparatively analyzed between Tongil and parental varieties using sequence-based tools. Each genetic factor was transferred from the parents into Tongil rice in amounts that were in proportion to the whole genome composition.</P><P><B>Conclusions</B></P><P>Tongil was derived from a three-way cross among two <I>indica</I> and one <I>japonica</I> varieties. Defining the genome structure of Tongil rice demonstrates that the Tongil genome is derived primarily from the <I>indica</I> genome with a small proportion of <I>japonica</I> genome introgression. Comparative gene distribution, SSR, GO, and yield-related gene analysis support the finding that the Tongil genome is primarily made up of the <I>indica</I> genome.</P><P><B>Electronic supplementary material</B></P><P>The online version of this article (doi:10.1186/s12284-014-0022-5) contains supplementary material, which is available to authorized users.</P>
Backki Kim,Dong-Gwan Kim,Gileung Lee,Jeonghwan Seo,Ik-Young Choi,Beom-Soon Choi,Tae-Jin Yang,Kwang soo Kim,Joohyun Lee,Joong Hyoun Chin,Hee-Jong Koh 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07
Tongil (IR667-98-1-2) rice, developed in 1972, is a high-yielding rice variety derived from a three-way cross between indica and japonica. Tongil contributed to staple food self-sufficiency of Korea, an achievement that was termed the ‘Korean Green Revolution’. In this study, we analyzed the nucleotide-level genome structure of Tongil rice and compared it to those of the parental varieties. A total of 17.3 billion Illumina Hiseq reads, 47× genome coverage, were generated from Tongil rice. Three parental accessions, two indica and one japonica types, of Tongil rice were also sequenced for approximately 30x genome coverage. A total of 2,149,991 SNPs were detected between Tongil and Nipponbare; the average SNP frequency of Tongil was 5.77 per kb. Genome composition based on the SNP data by comparing with the three parental genome sequences on sliding window of Nipponbare genome sequence revealed that 91.8% of the Tongil genome originated from the indica parents and 7.9% from the japonica parent, different from the theoretical expectation in a three-way cross, i.e., 75% indica and 25% japonica parental origins on average. Copy number of SSR motifs, ORF gene distribution throughout the whole genome, gene ontology (GO) annotation, yield-related QTLs or gene locations, and polymorphic transposon insertions were also comparatively analyzed between Tongil and parents using sequence-based tools. The results indicated that each genetic factor was transferred from parents into Tongil in proportion to the whole-genome composition. The Tongil rice is the first successful superior cultivar derived from indica × japonica hybridization in Korea. Defining of genome structure demonstrates that the Tongil genome is composed mostly of the indica genome with a small proportion of japonica genome introgression. This work was supported by a grant from the Next-Generation BioGreen 21 Program (Plant Molecular Breeding Center No. PJ008125), Rural Development Administration, Republic of Korea.