• 대한공간정보학회지
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• 제23권2호
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• pp.49-58
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• 2015

그 동안 국내외에서는 도시경쟁력 평가, 도시쇠퇴진단 등 도시의 재활성화를 위한 수준진단체계를 다양한 방법으로 구축하여 왔다. 그러나 기존 연구들에서 일반적인 도시를 진단하고 평가하는 것과는 달리 U-City의 수준을 진단하는 것은 U-City의 특성상 매우 복잡하고 어려운 작업이다. U-City는 다양한 구성요소가 서로 연계 융합되어 있어 일반적인 도시의 수준진단체계로는 그 수준을 가늠하기 힘들다. 따라서 U-City를 체계적으로 진단하기 위해서는 우선 U-City의 구조적 특성을 먼저 살펴보고 각 구성요소간의 관계성을 바탕으로 한 진단체계를 구성하는 것이 필요하다. 이에 본 연구에서는 U-City법상에 제시된 정의를 바탕으로 유비쿼터스도시계획, 유비쿼터스도시기반시설, 유비쿼터스도시기술, 유비쿼터스도시서비스 등 U-City를 구성하는 요소는 물론이고, 이를 통해 달성하고자 하는 U-City의 목표 등 다양한 요인을 종합적으로 감안한 U-City 수준진단체계의 방향성을 제시하고자 한다. 본 연구의 결과는 지역별로 상이한 U-City 품질격차를 해소하고 완성도 높은 U-City 구현을 위한 발판으로 작용할 것으로 기대된다.

• Parasites, Hosts and Diseases
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• 제58권5호
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• pp.551-558
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• 2020

The flaviviruses are small single-stranded RNA viruses that are typically transmitted by mosquitoes or tick vectors and are etiological agents of acute zoonotic infections. The viruses are found around the world and account for significant cases of human diseases. We investigated population of culicine mosquitoes in central region of Korean Peninsula, Incheon Metropolitan City and Hwaseong-si. Aedes vexans nipponii was the most frequently collected mosquitoes (56.5%), followed by Ochlerotatus dorsalis (23.6%), Anopheles spp. (10.9%), and Culex pipiens complex (5.9%). In rural regions of Hwaseong, Aedes vexans nipponii was the highest population (62.9%), followed by Ochlerotatus dorsalis (23.9%) and Anopheles spp. (12.0%). In another rural region of Incheon (habitat of migratory birds), Culex pipiens complex was the highest population (31.4%), followed by Ochlerotatus dorsalis (30.5%), and Aedes vexans vexans (27.5%). Culex pipiens complex was the predominant species in the urban region (84.7%). Culicine mosquitoes were identified at the species level, pooled up to 30 mosquitoes each, and tested for flaviviral RNA using the SYBR Green-based RT-PCR and confirmed by cDNA sequencing. Three of the assayed 2,683 pools (989 pools without Anopheles spp.) were positive for Culex flaviviruses, an insect-specific virus, from Culex pipiens pallens collected at the habitats for migratory birds in Incheon. The maximum likelihood estimation (the estimated number) for Culex pipiens pallens positive for Culex flavivirus was 25. Although viruses responsible for mosquito-borne diseases were not identified, we encourage intensified monitoring and long-term surveillance of both vector and viruses in the interest of global public health.

• Parasites, Hosts and Diseases
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• 제59권3호
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• pp.281-289
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• 2021

This study aimed to characterize the seasonal abundance of hard ticks that transmit severe fever with thrombocytopenia syndrome virus from April to November 2019 and 2020 on Ganghwa-do, Incheon Metropolitan City, Korea. The ticks were collected at grassland, grave site, copse and mountain road using a collection trap method. The ixodid hard ticks comprising three species (Haemaphysalis longicornis, H. flava, and Ixodes nipponensis) collected were 6,622 in 2019 and 3,811 in 2020. H. longicornis was the most frequent (97.9% in 2019 and 96.0% in 2020), followed by H. flava (2.0% and 3.0% in 2019 and 2020, respectively) and I. nipponensis (less than 0.1%). Our study demonstrated that seasonal patterns of the tick populations examined for two years were totally unsimilar. The hard ticks tested using RT-qPCR were all negative for severe fever with thrombocytopenia syndrome virus.

• Parasites, Hosts and Diseases
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• 제57권6호
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• pp.691-698
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• 2019

The seasonal abundance of hard ticks that transmit severe fever with thrombocytopenia syndrome virus was monitored with a collection trap method every April to November during 2015-2018 and with a flagging method every July and August during 2015-2018 in Ganghwa-do (island) of Incheon Metropolitan City, Republic of Korea. This monitoring was performed in a copse, a short grass field, coniferous forest and broad-leaved forest. A total of 17,457 ticks (8,277 larvae, 4,137 nymphs, 3,389 females, and 1,654 males) of the ixodid ticks comprising 3 species (Haemaphysalis longicornis, H. flava, and Ixodes nipponensis) were collected with collection traps. Of the identified ticks, H. longicornis was the most frequently collected ticks (except larval ticks) (94.26%, 8,653/9,180 ticks (nymphs and adults)), followed by H. flava (5.71%, 524/9,180) and Ix. nipponensis (less than 0.04%, 3/9,180). The ticks collected with collecting traps were pooled and assayed for the presence of SFTS virus with negative results. In addition, for monitoring the prevalence of hard ticks, a total of 7,461 ticks (5,529 larvae, 1,272 nymphs, 469 females, and 191 males) of the ixodid ticks comprising 3 species (H. longicornis, H. flava, and Ix. nipponensis) were collected with flagging method. H. longicornis was the highest collected ticks (except larval ticks) (99.53%, 1,908/1,917 ticks (nymphs and adults)), followed by H. flava (1.15%, 22/1,917).

• 지역연구
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• 제35권4호
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• pp.33-45
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• 2019

전 세계적인 저성장 기조로 인하여 주요 선진국에서는 도시축소문제가 도시정책의 주요 이슈로 대두되고 있다. 국토연구원의 연구결과(2016)에 따르면 우리나라 77개 도시 중 23개 도시가 지속적 또는 일시적 축소도시로 진단되었다. 그러나 축소도시를 진단하는 기준은 단순한 인구통계학적인 측면에 머물러 있으며, 도시의 공간적 축소패턴은 고려되지 않고 있다. 따라서, 본 연구에서는 도시공간구조 분석방법의 하나인 인구밀도경사함수를 이용하여 다핵도시인 영주시의 특성을 고려한 도시축소현상을 진단하였다. 진단결과, 영주시는 CBD의 인구밀도 및 인구밀도경사도가 증가하는 축소도시의 특성을 보이고 있다. 동지역의 경우 CBD의 인구밀도 및 인구밀도경사도가 감소하는 스프롤(sprawl) 현상이 나타났다. 또한, 풍기읍의 경우 CBD의 인구밀도만 감소하는 단순축소 현상이 나타났다. 본 연구결과는 한 도시 내에서도 중심지마다 공간변화의 패턴이 상이하게 나타날 수 있다는 것을 보여주었으며, 다핵구조를 갖는 도시의 경우에는 도시 전체뿐만 아니라 세부 지역에 대한 개별적인 진단이 필요하다는 시사점을 도출하였다.

• Parasites, Hosts and Diseases
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• 제58권3호
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• pp.301-308
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• 2020

Owing to global climate change, the global resurgence of vector-borne infectious diseases and their potential to inflict widespread casualties among human populations has emerged as a pivotal burden on public health systems. Tsutsugamushi disease (scrub typhus) in the Republic of Korea is steadily increasing and was designated as a legal communicable disease in 1994. The disease is a mite-borne acute febrile disease most commonly contracted from October to December. In this study, we tried to determine the prevalence of tsutsugamushi disease transmitted by chigger mites living on rodents and investigated their target vector diversity, abundance, and distribution to enable the mapping of hotspots for this disease in 2015. A total of 5 species belonging to 4 genera (109 mites): Leptotrombidium scutellare 60.6%, L. pallidum 28.4% Neotrombicula tamiyai 9.2%, Euschoengastia koreaensis/0.9%), and Neoschoengastia asakawa 0.9% were collected using chigger mite collecting traps mimicking human skin odor and sticky chigger traps from April to November 2015. Chigger mites causing tsutsugamushi disease in wild rodents were also collected in Hwaseong for the zoonotic surveillance of the vector. A total of 77 rodents belonging to 3 genera: Apodemus agrarius (93.5%), Crocidura lasiura (5.2%), and Micromys minutus (1.3%) were collected in April, October, and November 2015. The most common mite was L. pallidum (46.9%), followed by L. scutellare (18.6%), and L. orientale (18.0%). However, any of the chigger mite pools collected from rodent hosts was tested positive for Orientia tsutsugamushi, the pathogen of tsutsugamushi disease, in this survey.

• Journal of Korean Neurosurgical Society
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• 제64권2호
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• pp.247-254
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• 2021

Objective : The subaxial cervical pedicle screwing technique shows powerful biomechanical properties for posterior cervical fusion. When applying a pedicle screw using the freehand technique, it is essential to analyse cervical computed tomography and plan the surgery accordingly. Normal cervical computed tomography is usually performed in the supine position, whereas during surgery, the patient lies in a prone position. This fact leads us to suppose that radiological evaluations may yield misleading results. Our study aimed to investigate whether there is any superiority between preoperative preparation on computed tomography performed in the prone position and that performed in the supine position. Methods : This study included 17 patients (132 pedicle screws) who were recently operated on with cervical vertebral computed tomography in the prone position and 17 patients (136 pedicle screws) who were operated on by conventional cervical vertebral computed tomography as the control group. The patients in both groups were compared in terms of age, gender, pathological diagnosis, screw malposition and complications. A screw malposition evaluation was made according to the Gertzbein-Robbins scale. Results : No statistically significant difference was observed between the two groups regarding age, gender and pathological diagnosis. The screw malposition rate (from 11.1% to 6.9%, p<0.05), mean malposition distance (from 2.18 mm to 1.86 mm, p <0.05), and complications statistically significantly decreased in the prone position computed tomography group. Conclusion : Preoperative surgical planning by performing cervical vertebral computed tomography in the prone position reduces screw malposition and complications. Our surgical success increased with a simple modification that can be applied by all clinicians without creating additional radiation exposure or additional costs.

• Korean Journal of Acupuncture
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• 제29권4호
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• pp.616-622
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• 2012

Objectives : The objective of this study was to evaluate the correlation between earlobe crease(ELC) and Hypertension(HTN) in the auricular point diagnosis. Methods : 140 patients who were admitted the Jeongeup City Geriatric Hospital were examined for the presence or absence of ELC and HTN. The one examined the ELC of patients and the other examined the presence of hypertension. The presence of right ELC, left ELC, right or left ELC, and right and left ELC were respectively compared with the presence of HTN. Chi-square test was used to analyze the correlation between ELC and HTN. Results : The presence of right ELC was significantly related to presence of HTN(p=0.001). The sensitivity, specificity, and positive and negative predictability of ELC for diagnosis of HTN were 0.755, 0.524, 0.787, and 0.478. The presence of left ELC was significantly related to presence of HTN(p=0.002). The sensitivity, specificity, and positive and negative predictability of ELC for diagnosis of HTN were 0.745, 0.524, 0.785, and 0.468. The presence of right or left ELC was significantly related to presence of HTN(p<0.001). The sensitivity, specificity, and positive and negative predictability of ELC for diagnosis of HTN were 0.806, 0.500, 0.790, and 0.525. The presence of right and left ELCs was significantly related to presence of HTN (p=0.007). The sensitivity, specificity, and positive and negative predictability of ELC for diagnosis of HTN were 0.694, 0.548, 0.782, and 0.434. Conclusions : These results show that the presence of ELC is significantly associated with hypertension.

• 대한의용생체공학회:의공학회지
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• 제7권2호
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• pp.147-150
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• 1986

This paper describes the implementation of a computerized radial pulse diagnosis by aids of a clinical expert. On this base, we composed of the radial pulse diagnosis system in korean traditional medicine. The system composed of a radial pulse wave detection system and a radial pulse diagnosis system. With a detection system, we detected Inyoung and Cheongu radial pulse wave and processed it. Then, we have got the characteristic parameters of radial pulse wave and also quantified that according to the method of Inyoung-Cheongu Comparison Radial Pulse Diagnosis. We defined the jugement standard of radial pulse diagnosis system and then we confirmed the possibility for realization of automatic radial pulse diagnosis in korean traditional medicine.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1990년도 한국자동제어학술회의논문집(국내학술편); KOEX, Seoul; 26-27 Oct. 1990
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• pp.559-563
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• 1990

A new speed improvement method for quantitative superimposed EMG signal analysis to diagnose the neuromuscular dysfunction is described. The improvement is achieved through the use of efficient software and hardware signal processing techniques. The software approch is composed of the MANDF filter and HRWA algorithm which provides the optimal set and time delays of-selected templates. The hardware employs a TMS32OC25 DSP chip to execute the intensive calculation part. The purposed method is verified through a simulation with real templates which are obtained from needle EMG. As a results, the proposed method provides an overall speed improvement of 32-40 times.