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유한양,김상욱,김대용,김진호 강원대학교 정보통신연구소 1998 정보통신논문지 Vol.2 No.-
LSF scheduling policy involves the Priority Reversal which reverses the scheduling order of real-time tasks. The slack time of the task currently running isn't decreased under LSF. If the task is preempted by a task newly arrived, therefore, its slack time can become longer than those of other tasks with lower priority. This Priority Reversal can make the task with higher priority miss its deadline. In this paper, we propose a new real-time scheduling policy, Consistent_LSF guarantees consistently the scheduling order of current real-time tasks without regard to any new task. The preempted tasks are maintained in a separate stack and are scheduled earlier than the tasks with lower priority. We evaluate the performance of Consistent_LSF through experiments. The results reveal that Consistent_LSF misses deadline less than LSF across all ranges of system load.
데이타베이스 시스템을 이용한 웹 자원 관리 엔진의 설계 및 구현
이명석,김진호,김상욱,유한양 강원대학교 정보통신연구소 1999 정보통신논문지 Vol.3 No.-
In this paper, we propose a web resource management engine based on general DBMSs. The web resources management engine manages the meta information describing the characteristics of resourves in a target web site. The engine extracts the meta information from HTML documents in the site and stores it into a predefined database called virtual schema. We use a general-purpose DBMS for maintaining the virtual schema. For design of the virtual schema, we model each element of HTML documents as a DBMS relation, and each attribute of an element as an attribute of its corresponding DBMS relation. We also model the link information among HTML documents as another relation. In order to merge the web and database having the virtual schema, we employ some additional tags in HTML documents, which were originally proposed in the INFORMIX WebDataBlade. Our web resource management engine has the following good features: (1) it supports dynamic changes of the web resources in a site by issuing update queries on the virtual schema, (2) it provides such searches that are based on structural characteristics of HTML documents since the virtual schema keeps the necessary information, (3) it provides the standard SQL interface for users to simply search and update the web resources, and finally, (4) it is portable to any DBMSs by just extending the gateway between the web and database since it only uses the common facilities supported by general-purpose DBMSs.
You, Hee-Joo,Park, Sun-Wook,Lee, Han-Suk The Korean Society of Physical Therapy 2015 대한물리치료학회지 Vol.27 No.6
Purpose: This study was to identify the whether there is any correlation between Gross Motor Function Measures (GMFM) and Functional independence Measurement for children (WeeFIM) in order to identify a relevance of daily life motor with gross motor function of children with cerebral palsy. Methods: Subjects were instructed to evaluated by an occupational therapist using WeeFIM (reliability 0.83-0.99) and by a physical therapist using GMFM (reliability 0.93). 10 male children and 13 female children among 23 children being diagnosed as cerebral palsy were targeted for this study. A correlation between GMFM and WeeFIM was analyzed with Kendall correlation. Results: Participants showed significant correlation between GMFM and WeeFIM in all categories, except in the GMFM's walking running jumping category, standing category of GMFM and self care, sphincter control, communication category of WeeFIM. Lying rolling and sitting and crawling kneeling area of GMFM showed a significant correlation with self care(r=0.35, 0.39, 0.4), sphincter control (r=0.45, 0.43, 0.61), mobility transfer (r=0.44, 0.36, 0.64), locomotion (r=0.41, 0.35, 0.74), communication (r=0.4, 0.44, 0.51), and social cognition (r=0.43, 0.51, 0.64) area of WeeFIM (p<0.05). Standing of GMFM and mobility transfer (r=0.74), locomotion (r=0.47) and social cognition (r=0.4) area of WeeFIM showed a significant correlation (p<0.05). Conclusion: These findings indicated significant correlation between activity of daily living (ADL) and gross motor function of children with cerebral palsy. However, because there are a few results that are not significant, both assessment tools should be used for evaluations so that treatment can be achieved with an accurate assessment and establish a therapeutic plan.
Prenatal diagnosis of 5p deletion syndrome: A case series report
You Jung Han,Dong Wook Kwak 대한의학유전학회 2017 대한의학유전학회지 Vol.14 No.1
5p deletion syndrome, also known as Cri-du-Chat syndrome, is a chromosomal abnormality caused by a deletion in the short arm of chromosome 5. Clinical features of 5p deletion syndrome are difficult to identify prenatally by ultrasound examination, thus most cases of 5p deletion syndrome have been diagnosed postnatally. Here, we report eight cases of 5p deletion syndrome diagnosed prenatally, but were unable to find common prenatal ultrasound findings among these cases. However, we found that several cases of 5p deletion syndrome were confirmed prenatally when karyotyping was performed on the basis of abnormal findings in a prenatal ultrasound scan. Hence, it is necessary to carefully perform prenatal ultrasonography for detection of rarer chromosomal abnormalities as well as common aneuploidy.
Prenatal diagnosis of 5p deletion syndrome: A case series report
Han, You Jung,Kwak, Dong Wook Korean Society of Medical Genetics and Genomics 2017 대한의학유전학회지 Vol.14 No.1
5p deletion syndrome, also known as Cri-du-Chat syndrome, is a chromosomal abnormality caused by a deletion in the short arm of chromosome 5. Clinical features of 5p deletion syndrome are difficult to identify prenatally by ultrasound examination, thus most cases of 5p deletion syndrome have been diagnosed postnatally. Here, we report eight cases of 5p deletion syndrome diagnosed prenatally, but were unable to find common prenatal ultrasound findings among these cases. However, we found that several cases of 5p deletion syndrome were confirmed prenatally when karyotyping was performed on the basis of abnormal findings in a prenatal ultrasound scan. Hence, it is necessary to carefully perform prenatal ultrasonography for detection of rarer chromosomal abnormalities as well as common aneuploidy.
노인 인구에서 신경인지기능저하와 혈청 지질농도와의 상관성
유영선,최석주,정성수,김지은,윤성욱,전동욱,백준형,박성우,이정구,추일한,김영훈 大韓神經精神醫學會 2008 신경정신의학 Vol.47 No.6
Objectives : In this study, the authors evaluated the correlation between eurocognitive impairments and serum lipids levels among Korean elderly over the age of 65. Methods : A total of 609 elderly individuals participated in this study. Screening for cognitive impairments were carried out using the Mini-Mental Status Examination-Korean version (MMSE-KC). There were 197 subjects above 1.5SD Of MMSE- KC and they were evaluated using the Korean versions of the Consortium to Establish a Registry for Alzheimer's Disease (AD) (CERAD-KC) and Geriatric Depression Scale (GDS-K). Results : There was a correlation between old age/low levels of education and AD (p<0.05, P<0.01). There was an inverse correlation between the serum level of total cholesterol and the word list recognition test scores. The serum levels of LDL cholesterol were inversely correlated with the scores on the constructional praxis test, word list recall test and word list recognition test. Inverse correlations between the serum level of triglyceride and scores on the word list recall test and word list recognition test were also observed. Conclusion : There were inverse correlations between the serum levels of lipids and language/memory function in subjects with AD.
Two cases of TSC2/PKD1 contiguous gene deletion syndrome
You, Jihye,Kang, Eungu,Kim, Yoonmyung,Lee, Beom Hee,Ko, Tae-Sung,Kim, Gu-Hwan,Choi, Jin-Ho,Yoo, Han-Wook Korean Society of Medical Genetics and Genomics 2016 대한의학유전학회지 Vol.13 No.1
Tuberous sclerosis complex (TSC, MIM#191100) is an autosomal dominant neurocutaneous syndrome caused by mutation or deletion of TSC1 encoding hamartin or TSC2 encoding tuberin and characterized by seizure, mental retardation, and multiple hamartomas or benign tumors in the skin, brain, retina, heart, kidney, and lungs. The TSC2 gene on chromosome 16p13.3 lies adjacent to the PKD1 gene which is responsible for autosomal dominant polycystic kidney disease (MIM#173900). The TSC2/PKD1 contiguous gene syndrome (TSC2/PKD1 CGDS, MIM#600273) is caused by deletion of both TSC2 and PKD1 gene. We recently experienced a 15 month-old boy and a 26 month-old girl with TSC2/PKD1 CGDS confirmed by multiplex ligation-dependent probe amplification (MLPA) analysis. They showed not only typical neurologic manifestations of TSC such as epilepsy, subependymal nodules, and subcortical tubers, but also polycystic kidney disease. The contiguous gene syndrome involving PKD1 and TSC2 should be suspected in children with enlarged polycystic kidneys and TSC. MLPA analysis is a useful method for the genetic confirmation of TSC2/PKD1 CGDS.