• 한국전기전자재료학회논문지
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• 제26권8호
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• pp.614-619
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• 2013

Recently, remote phosphor is reported for white LED enhancing of phosphor efficiency compared with conventional phosphor-based W-LED. In this study, Remote phosphor was produced by screen printing coating on glass substrate with phosphor contents rated paste and heat treatment. The paste consists of phosphor, lowest softening glass frit and organic binders. Remote phosphor can be well controlled by varying the phosphor content rated paste. After mounting remote phosphor on top of blue LED chip, CCT, CRI, and luminance efficiency were measured. The measurement results showed that CCT, CRI, and luminance efficiency were 6,645, 68, and 1,16l m/W in phosphor 80 wt.% remote phosphor sintered at $600^{\circ}C$.

• 사물인터넷융복합논문지
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• 제6권4호
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• pp.27-32
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• 2020

인구 고령화에 따라 치매환자가 크게 늘어나고 있으며, 이에 따른 사회 경제적 부담이 커지고 있다. 현재 치매환자를 효과적으로 관리하는 방법은 조기에 치매 초기 환자를 파악하는 것이다. 그러나 의료진이 부족한 농촌과 섬 지역에서는 병원을 방문해서 조기 검사를 받기 어려운 문제가 있다. 이 문제를 해결하는 방법으로 본 논문에서는 원격 치매 조기 검사 시스템을 제안한다. 원격 치매 조기 검사 시스템은 환자가 실시간 화상 통신을 기반으로 한 원격 의료 기술을 활용하여 원격의 치매 전문가에게 검사 및 진료를 받을 수 있는 시스템이다. 치매 원격 조기 검진 시스템은 섬 지역의 보건지소 의료진이 사용하는 로컬 클라이언트 시스템, 영상을 전송 및 저장/관리하는 화상 서버, 원격 치매 전문가가 활용하는 전문가 클라이언트로 구성된다. 로컬 클라이언트는 환자가 보건지소의 의료진과 같이 사용할 수 있도록 함으로써 현 의료법의 원격협진 기준을 만족시킨다. 또한 전문가 클라이언트는 치매 전문가가 사용하며, 환자의 정보를 저장/관리하고, 환자의 이력 정보를 분석하고 향후 치매 진행 정도를 예측할 수 있다.

• 한국전문물리치료학회지
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• 제3권1호
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• pp.73-79
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• 1996

Photochemotherapy(UVA with 8-methoxypsoralen) was given to 30 patients with systemic psoriasis. The results of clearing and long-term(6-month) interval maintenance were reported. Clearing requirements were in general similar to these reported by Melski and Burger. The skin of the 14 patients (46.6%) recovered good skin condition by a once weekly maintenance dose. This result was better than that reported by other authors. 1. During initial treatment period, average number of treatment was 27.3 and average duration treatment was 24.8 weeks. 2. The factors to quit treatment were motion decrease, moving to the remote area, complications, etc. 3. Number of patient who received maintenance treatment was 14. 4. The complications reported from the patients were hyperpigmentation, nausea, headache, pruritis, vomiting, gastritis.

• The Korean Journal of Physiology and Pharmacology
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• 제17권2호
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• pp.169-173
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• 2013

Renal ischemia-reperfusion (IR) causes remote liver damage. Oxytocin has anti-inflammatory and antioxidant effects. The main purpose of this study was to evaluate the protective function of oxytocin (OT) in remote liver damage triggered by renal IR in rats. Twenty four rats were randomly divided into four different groups, each containing 8 rats. The groups were as follows: (1) Sham operated group; (2) Sham operated+OT group (3) Renal IR group; (4) Renal IR+OT group. OT ($500{\mu}g/kg$) was administered subcutaneously 12 and 24 hours before and immediately after ischemia. At the end of experimental procedure, the rats were sacrificed, and liver specimens were taken for histological assessment or determination of malondialdehyde (MDA), total oxidant status (TOS), total antioxidant status (TAS), paraoxonase (PON-1) activity and nitric oxide (NO). The results showed that renal IR injury constituted a notable elevation in MDA, TOS, Oxidative stress index (OSI) and significantly decreased TAS, PON-1 actvity and NO in liver tissue (p<0.05). Additionally renal IR provoked significant augmentation in hepatic microscopic damage scores. However, alterations in these biochemical and histopathological indices due to IR injury were attenuated by OT treatment (p<0.05). These findings show that OT ameliorates remote liver damage triggered by renal ischemia-reperfusion and this preservation involves suppression of inflammation and regulation of oxidant-antioxidant status.

• 대한환경공학회지
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• 제29권8호
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• pp.884-891
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• 2007

• 한국의학물리학회지:의학물리
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• 제5권1호
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• pp.67-74
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• 1994

선량분포특성은 거리의 제곱에 반비례하기 때문에 근접조사에서 선원의 조그마한 오차는 선량계산에서 큰 차이를 초래할 수 있어서 선원의 정확한 거리 이동과 그에 따른 critical organ에 조사되는 선량의 정확도는 자궁경부암 환자의 치료성적에 결정적인 역할을 할 수가 있다. 특히 High Dose Rate의 RALS(Remote After Loading System)에서 선원의 정확한 calibration은 자궁경부암 환자의 치료에서 선량분포에 지대한 영향을 미치며 나아가 이 선량분포는 치료후 나타나는 재발 및 합병증이나 휴유증의 발생에도 큰 영향을 미치게 된다. 본 연구에서는 실제 RALS시 선원의 거리 이동을 측정하여 치료계획용 computer에서 계산된 선원간의 거리 이동과 비교 검토하였으며 Rectum 위치에 chamber를 삽입하여 실제 Rectum에 조사되는 선량과 computer에서 계산된 값들을 비교검토하였다. Tandem Source을 1cm 간격으로 거리를 이동하면서 실험을 되풀이 한 결과 처음 monitor로 1cm을 이동할 때 측정치가 0.8cm 이동한 것으로 나타났으며, 2번째부터 5번째까지의 거리 이동에서는 monitor의 값과 측정치의 값이 정확하게 일치하였다. 또한 12명의 환자를 대상으로 실시한 Rectum dose의 측정치는 computer계산치보다 평균 8%로 낮게 나타났다.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 2001년도 추계학술대회 학술발표 논문집
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• pp.56-59
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• 2001

In this paper, unmaned fully automation systems are applied for the CSTR(Continuously Stirred Tank Reactor) and, SBR (Sequencing Batch Reactor) wastewater treatment pilot plant. This plant is constructed in the country side which is little far from a main city. So networks and wireless modules are employed for the data transmission. The SBR plant has a local control and monitoring system which is contained communication parts which consist of one ADSL (Asymmetric Digital Subscriber Line) network and one CDMA (Code Division Multiple Access) module. Remote control and monitoring systems are constructed at a laboratory in a metropolis.

• 한국컴퓨터산업학회논문지
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• 제3권9호
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• pp.1245-1250
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• 2002

본 논문은 누구나 참여할 수 있는 웹상에서의 시공간을 초월한 on-line 및 off-line 겸용모드의 지능형 원격 진료시스템으로서, 데이터베이스는 IIS 4.0 웹서버 상에서 ASP와 SQL을 연동한 구현하여 효율적인 자료처리를 위한 시스템 통합과 환자와 의사 및 한의사간의 on-line 상담, 그리고 off-line상에서의 진료와 환자가 지정한 약사로의 처방전 전송 및 조제, 그리고 진료데이터의 저장 및 검색으로 인한 반영구적인 진료데이터저장이 가능하며, 가족간의 진료데이터 검색 및 공유등 유전에 대한 치료효과 및 개인 병력관리를 통한 과거진료상황에 따른 빠른 치료효과 및 의사간의 협조진료등이 가능한 지능형 객체관리를 이용한 데이터베이스 구성이 되어있다.

• Transactions on Electrical and Electronic Materials
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• 제10권3호
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• pp.75-79
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• 2009

An intrinsic silicon thin film passivation layer is deposited by the microwave remote-plasma enhanced chemical vapor deposition at temperature of $175^{\circ}C$ and various gas ratios for solar cell applications. The good quality amorphous silicon films were formed at silane $(SiH_4)$ gas flow rates above 15 seem. The highest effective carrier lifetime was obtained at the $SiH_4$, flow rate of 20 seem and the value was about 3 times higher compared with the bulk lifetime of 5.6 ${\mu}s$ at a fixed injection level of ${\Delta}n\;=\;5{\times}10^{14}\;cm^{-3}$. An annealing treatment was performed and the carrier life times were increased approximately 5 times compared with the bulk lifetime. The optimal annealing temperature and time were obtained at 250 $^{\circ}C$ and 60 sec respectively. This indicates that the combination of the deposition of an amorphous thin film at a low temperature and the annealing treatment contributes to the excellent surface and bulk passivation.

• Radiation Oncology Journal
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• 제37권1호
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• pp.13-21
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• 2019

Purpose: Glioblastoma (GBM) carries a high propensity for in-field failure despite trimodality management. Past studies have failed to show outcome improvements with dose-escalation. Herein, we examined trends and outcomes associated with dose-escalation for GBM. Materials and Methods: The National Cancer Database was queried for GBM patients who underwent surgical resection and external-beam radiation with chemotherapy. Patients were excluded if doses were less than 59.4 Gy; dose-escalation referred to doses ≥66 Gy. Odds ratios identified predictors of dose-escalation. Univariable and multivariable Cox regressions determined potential predictors of overall survival (OS). Propensity-adjusted multivariable analysis better accounted for indication biases. Results: Of 33,991 patients, 1,223 patients received dose-escalation. Median dose in the escalation group was 70 Gy (range, 66 to 89.4 Gy). The use of dose-escalation decreased from 8% in 2004 to 2% in 2014. Predictors of escalated dose were African American race, lower comorbidity score, treatment at community centers, decreased income, and more remote treatment year. Median OS was 16.2 months and 15.8 months for the standard and dose-escalated cohorts, respectively (p = 0.35). On multivariable analysis, age >60 years, higher comorbidity score, treatment at community centers, decreased education, lower income, government insurance, Caucasian race, male gender, and more remote year of treatment predicted for worse OS. On propensity-adjusted multivariable analysis, age >60 years, distance from center >12 miles, decreased education, government insurance, and male gender predicted for worse outcome. Conclusion: Dose-escalated radiotherapy for GBM has decreased over time across the United States, in concordance with guidelines and the available evidence. Similarly, this large study did not discern survival improvements with dose-escalation.