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Han, Sanghyun,Park, Bumsoo,Lim, Jeong-Wook,Youm, Jin-Young,Choi, Seoung-Won,Kim, Dae Hwan,Ahn, Dong Ki The Korean Neurosurgical Society 2020 Journal of Korean neurosurgical society Vol.63 No.6
The demineralized bone matrix (DBM) as the bone graft material to increase the fusion rate was widely used in spinal fusion. The current study aimed to compare the fusion rate of DBM to the fusion rate of autograft in lumbar spine fusion via meta-analysis of published literature. After systematic search, comparative studies were selected according to eligibility criteria. Checklist (risk of bias assessment tool for non-randomized study) was used to evaluate the risk of bias of the included nonrandomized controlled studies. The corresponding 95% confidence interval (95% CI) were calculated. We also used subgroup analysis to analyze the fusion rate of posterolateral lumbar fusion and lumbar interbody fusion. Eight studies were finally included in this meta-analysis. These eight studies included 581 patients. Among them, 337 patients underwent spinal fusion surgery using DBM (DBM group) and 204 patients underwent spinal fusion surgery with mainly autologous bone and without using DBM (control group). There was no significant differences of fusion rate between the two groups in posterolateral fusion analysis (risk ratio [RR], 1.03; 95% CI, 0.90-1.17; p=0.66) and interbody fusion analysis (RR, 1.13; 95% CI, 0.91-1.39; p=0.27). Based on the available evidence, the use of DBM with autograft in posterolateral lumbar spine fusion and lumbar interbody fusion showed a slightly higher fusion rate than that of autograft alone; however, there was no statistically different between two groups.
수소 첨가가 디젤 엔진 HCCI 연소특성에 미치는 영향에 관한 계산적 연구
한상현(Sanghyun Han),신범식(Buomsik Shin),전광민(Kwangmin Chun),송순호(Soonho Song) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
HCCI (homogeneous charge compression ignition) engine is expected to achieve higher thermal efficiency and reduction in NOx and PM emission. To utilize HCCI engine properly, ignition timing control is crucial. The purpose of this study is to investigate combustion characteristics of HCCI engine when mixture of diesel and hydrogen is used as the fuel. Study is conducted by numerical method using n-heptane as a surrogate fuel of the diesel and CHEMKIN to calculate combustion characteristics as a function of hydrogen ratio in the fuel, relative air/fuel ratio and initial temperature. The results show that adding hydrogen to diesel makes combustion occur faster as well as lower NO and CO. In addition, early combustion and low emission of NO and CO can be achieved by lowering the relative air/fuel ratio. Increasing the initial temperature causes early combustion but produces more NO and CO.
Comparing characteristics of agricultural and physiological of ‘Iksan370’ and ‘Keumkang’
Jae-Han Son,Kyeong-Hoon Kim,Sanghyun Shin,Young-Keun Cheong,Hag-Sin Kim,Induk Choi,Young-Jin Kim,Choon-Ki Lee,Kwang-Geun Park,Chon-Sik Kang 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07
Characteristics of agronomy, especially good yield productivity is very important in wheat (Triticum aestivum L.) as human food crop. Development of elite cultivar having good traits is required for food stability. In 2013, a new wheat line called Iksan370 has been developed by the National Institute of Crop Science, RDA. Iksan370 has hard red winter wheat characteristics and better features like resistance to biotic, abiotic stress and higher yield ability than Keumkang. Heading and maturing date were delayed about ten days and period to flowering date was shorter three or four days than Keumkang. Culm and spike length of Iksan370 were 95cm and 15.3cm, averagely. This means that culm and spike length were longer than Keumkang (79cm and 7cm, respectively). It showed higher milling rate (75.5%), protein content (13.5%) and SDS-sedimentation volume (77.5ml) than Keumkang. Genotypes of six genes, GBSSA, B, D, PPO18, Pina and Pinb, were represented that were similar to Keumkang, respectively. Average yield of Iksan370 in the preliminary trial test was 6.61 tons/ha in upland. We expect that yield productivity and farm income were increased by Iksan370.
한상현(Sanghyun Han) 한국관세학회 2001 관세학회지 Vol.2 No.1
The contract for the international sale of goods is a contract of sale of goods between parties of business in different countries beyond tariff line. In principle, a contract for the international sale of goods is concluded at the moment when an acceptance of an offer become effective. Though this principle looks simple, they tum out complicated problems as to what is offer or acceptance, especially as to the exact time that contracts go into effect. Years in preparation, the first ever law on New Contract Law in The People's Republic of China(PRC) came into effect on October 1, 1999, adopted at the second Session of the Standing Committee of the nineth National People's Congress on March 5, 1999. This Law shall apply to economic contracts concluded between individuals, enterprises or other economic organizations of the People's Republic of China and foreign enterprises. For that reason, the parties who conclude an international Sales contracts effectively are must understand perfectly in the legal' commercial aspects offer or acceptance that become basic elements in the formation contracts for the International Sale of Goods with China. So, In the thesis I tried to explain principles on offer and acceptance in Contract for the International Sale of Goods on focus legalㆍcommercial problems.
GENIVI Platform를 이용한 Touch 기반 차량 공조 제어 시스템 개발
한상현(SangHyun Han),정진혁(JinHuk Jeong),서석현(SukHyun Seo) 한국자동차공학회 2017 한국자동차공학회 학술대회 및 전시회 Vol.2017 No.11
Recently, the infotainment market is actively moving in the domestic and overseas automobile markets. It is possible to reuse codes and functions through a single platform and implement the functions through a single controller as compared to the past, which controls many functions in the vehicle according to the technology. As a result, the increasing cost, the long development period, and the increasing royalties have been caused. In order to solve this problem, the automobile industry continues to commercialize the open source platform. We suggest how to use the Yocto Project. In addition, a touch-based vehicle air-conditioning control system was constructed using a vehicle infotainment platform. Through the results of this paper, we have developed a platform to develop next generation head unit. We will develop a head unit that controls various functions such as navigation and air conditioning controller by using functions provided by GENIVI Platform in the future.
한상현(Sanghyun Han),석종수(Jong-Soo Seok),진현욱(Hyun-Wook Jin) 한국정보과학회 2012 한국정보과학회 학술발표논문집 Vol.39 No.1A
최근 다양한 차량용 전자장치들이 등장함에 따라 이들을 제어하기 위한 소프트웨어의 중요성이 크게 부각되고 있다. 특히 차량용 인포테인먼트 시스템에 대한 요구사항이 급격하게 증가하고 있으며, 이를 효율적으로 수용하기 위한 소프트웨어 플랫폼의 개발이 활발히 진행되고 있다. 이러한 소프트웨어 플랫폼의 표준화를 위한 움직임이 본격적으로 진행되고 있으며, 다양한 소프트웨어 플랫폼에 대한 고려도 동시에 이루어지고 있다. 차량용 인포테인먼트 시스템에 가상화 및 파티셔닝 기술을 도입하면 각 응용프로그램의 실시간 요구사항을 만족시킴과 동시에 이미 개발된 다양한 소프트웨어 플랫폼을 지원할 수 있다. 하지만 아직까지 차량용 인포테인먼트 시스템을 위하여 호스트 운영체제에서 동작하는 비가상화 파티션과 가상화 기술을 이용한 가상화 파티션을 동시에 지원하기 위한 연구는 존재하지 않는다. 본 논문에서는 리눅스 운영체제에서 동작하는 비가상화 파티션과 가상화 기술을 이용한 가상화 파티션을 동시에 지원하기 위한 스케줄링 방법을 제안하고 개발된 시스템의 유용성을 보이기 위하여 가상화 파티션 및 비가상화 파티션을 동시에 사용하는 차량용 인포테인먼트 시스템의 사례연구를 보인다.
일부 대학병원 방사성옥소 치료병실의 안전관리로 본 실태 고찰
한상현(Sanghyun Han),이상호(Sangho Lee) 한국방사선학회 2012 한국방사선학회 논문지 Vol.6 No.5
방사성옥소를 이용한 갑상선 암의 치료는 지난 수 십년 동안 사용되어 왔으며 많은 치료효과를 보이면서 앞으로 지속적으로 사용되어 질 전망이고 현재 우리나라의 옥소치료병실 수는 2010년 기준 124개의 치료병실이 운영되고 있으나 아직도 부족한 실정이다. 그래서 많은 병원들이 치료병실을 개설하고 있으나 중요한건 치료병실의 수적 증가보단 현재 치료병실의 올바른 관리가 선행되어야 한다는 것이다. 따라서 병실증설에 대한 논의에 앞서 현재 적용되고 있는 치료병실의 안전관리 기준과 일부 대학병원에서 기준으로 삼고 있는 안전관리기준을 조사하여 얼마나 잘 지켜지고 있는지, 치료병실의 이용에 따른 전반적인 안전관리실태여부를 조사하여 고찰 하였다. Using Radioiodine therapy of thyroid cancer in the past have been used for decades as many look forward to continuing treatment be used, and the current outlook of in korea 2010 based on the number of Iodine therapy room is operated by 124, but still is lacking. So many hospitals opened their therapy room, but importantly, increasing number of treatment rather than therapy room current treatment is that it must be preceded by the proper administration of the. Therefore therapy room expansion, discussions about before now being applied therapy room safety management standards, and a part university hospital based safety management standards by examining how well kept and that the therapy room to the use of the overall safety management research on the actual condition were discussed.