측두엽내 공간 점유 병소와 동반된 난치성 간질의 수술적 치료 성적

박준범,이완수,이정교,전상룡,김정훈,노성우,나영신,김창진,권양,임승철,권병덕,강중구,이상암,고태성,Park, Jun Bum,Lee, Wan Su,Lee, Jung Kyo,Jeon, Sang Ryong,Kim, Jeong Hoon,Roh, Sung Woo,Ra, Young Shin,Kim, Chang Jin,Kwon, Yang,Rhim, Seung Chul 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.1

Objective : The increasing use of sensitive neuroimaging techniques has demonstrated that significant percentage of patients with intractable complex partial seizures have brain masses, especially in temporal lobe. The optimal surgical solution for these patients is still open to debate. The purpose of our investigation is to evaluate the surgical outcome of patient with lesion-related temporal lobe epilepsy with respect to the types of surgery and the location of lesion. Patients and Methods : From DEC. 1993 to Dec. 1997, 35 patients with intractable epilepsy and space occupying temporal lobe lesion identified in preoperative MRI were included in this study. The types of surgery were lesionectomy, anterior temporal lobectomy with or without hippocampectomy. The location of lesion was divided as anteromedial group and lateral cortical group. The postoperative seizure outcomes according to the type of surgery and location of the lesion were compared. Results : Twenty-six of 34 patients(76.5%) were seizure-free after surgery. The Engel's class was favorable after anterior temporal lobectomy with or without hippocampectomy(p=.044) Conclusion : It is favorable to perform anterior temporal lobectomy for the treatment of intractable epilepsy with space-occipying lesion in temporal lobe. The resection of the hippocampus can be individualized.

가연물별 Soot 생성률에 따른 폴리머애자의 플래시오버 특성에 관한 실험적 연구

박준범,이수경 한국화재소방학회 2018 한국화재소방학회 학술대회 논문집 Vol.2018 No.추계

Via-hole 구조의 n-접합을 갖는 수직형 발광 다이오드 전극 설계에 관한 연구

박준범,박형조,정탁,강성주,하준석,임시종,Park, Jun-Beom,Park, Hyung-Jo,Jeong, Tak,Kang, Sung-Ju,Ha, Jun-Seok,Leem, See-Jong 한국마이크로전자및패키징학회 2015 마이크로전자 및 패키징학회지 Vol.22 No.4

최근 Light Emitting Diode (LED)의 효율을 높이기 위한 연구가 활발히 진행 되고 있다. 특히 소자 측면에서는 수평형 LED, 수직형 LED, via-hole 구조의 수직형 LED 등의 다양한 구조가 제시되었다. 본 논문에서는 시뮬레이션을 통해 via-hole 구조의 수직형 LED의 새로운 전극 디자인을 제시하였다. 기존 Via-hole 구조의 수직형 LED의 n-contact hole 주변에 전류가 밀집되는 문제점을 해결하면서 유효 발광면적을 극대화 시켜 소자 전체에 균일한 전류를 주입할 수 있는 소자 디자인에 대해 평가하였다. 시뮬레이션 결과를 바탕으로 최적의 전극 디자인을 실제 디바이스로 제작하여 기존의 via-hole 구조의 수직형 LED와 비교 분석하였다. 최적화된 디자인이 적용된 via hole type 수직형 LED의 경우 기존 디자인에 비해 350 mA 주입시 약 0.2 V의 Forward Voltage 감소하였지만 광 출력은 비슷하여 최종적으로 4.2%의 WPE (Wall plug efficiency)가 향상됨을 보였다.

비포화대에서의 모니터링 기법 소개

박준범,오명학 대한토목학회 1999 대한토목학회지 Vol.47 No.4

[위생매립 / 토양복원] 폐기물 매립지 안정화 실시간 모니터링에 관한 연구

박준범,권기범,권오정,이성재,유경민,황태문 한국폐기물자원순환학회 2007 한국폐기물자원순환학회 학술대회 Vol.2007 No.1

두개인두종 수술 말기에 급격히 발생한 심각한 고나트륨혈증 -증례 보고-

박준범,박세훈,서은희,박현석,정진규 대한중환자의학회 2013 Acute and Critical Care Vol.28 No.1

Hypernatremia, defined as a rise in the serum sodium concentration to a value exceeding 145 mM/L, is a common electrolyte disorder. Diabetes insipidus is a common cause of hypernatremia, caused by impaired production or reduced responses to vasopressin. The resultant morbidity may be inconsequential, serious, or even life-threatening. However, hypernatremia rarely occurs during anesthesia and surgery. A 45-year-old female patient with craniopharyngioma was scheduled for tumor resection. Hypernatremia (serum sodium, 170 mM/L) occurred suddenly at the end of the surgery. To treat hypernatremia, 0.45% normal saline was used. Although serum sodium concentration was reduced faster than expected, the patient did not have any complications.

모아레 현상을 이용한 영상기반 파이프 서포트 변위측정 방법

박준범,박세미,김재현,김정열 한국건설관리학회 2022 한국건설관리학회 논문집 Vol.23 No.1

It is very important to measure the displacement of a structure to evaluate the safety of the structure. This study shows a methodology to measure the displacement to determine the stability of a structure when it is damaged by loads. The methodology used Moiré's phenomenon and was verified through experiments. The experiments utilized pipes to simulate the pipe supports in the construction site and measured the vertical displacement of the Moiré interference patterns according to the horizontal displacement of the pipes. Experiments confirmed that the linear relationship between horizontal displacement of pipes and vertical displacement of Moiré patterns and derive a relational expression. In conclusion, the methodology presented in this work allows us to simultaneously measure a number of vertical members’ displacements regardless of distance and determine the safety of the structure.

레이저 빔 시인성 향상을 위한 산란입자가 분산된 Black Matrix

박준범,신동균,한승조,박종운 한국반도체디스플레이기술학회 2017 반도체디스플레이기술학회지 Vol.16 No.4

With an attempt to enhance the visibility of laser beam, we have investigated a black matrix with scattering particles by ray tracing simulations. As the scattering particle density is increased, the detected power by the receiver is increased, thereby enhancing the visibility. In reality, the visibility is reduced with increasing incident angle (away from the normal incidence) of laser beam, a phenomenon also observed by ray tracing simulations. It is due to the fact that the mean path is increased within a highly absorptive BM layer or a smaller number of rays hit the BM area when the incident angle is high. Embedding a number of scattering particles into BM may bring in crosstalk among pixels. However, it is negligible because scattered rays inside highly absorptive BM are re-scattered due to the high scattering particle density, decreasing the power of scattered rays into the active areas.

투명 OLED 면광원 광 추출 향상 기술

박준범,신동균,한승조,박종운 한국반도체디스플레이기술학회 2017 반도체디스플레이기술학회지 Vol.16 No.4

We have investigated the light extraction efficiency of large-area OLED lighting panels with a microlens array (MLA) or external scattering layer (ESL) by ray tracing simulation. The application of MLA and ESL to transparent OLEDs (TOLEDs) with an auxiliary metal electrode is also studied. It is found that MLA shows higher light extraction efficiency, compared with ESL. However, we have demonstrated that ESL is more suitable for TOLEDs having dual-sided equal light emission. Namely, equal light emission from the front and rear surfaces of TOLED can be achieved by increasing the scattering particle density of ESL. To compensate for a loss in light emission induced by auxiliary metal electrode, we come out with an OLED structure partially covered with MLA at the outer surface of glass substrate, which is aligned with metal electrode. With this scheme, it is observed that the light extraction efficiency can be boosted more than 20% from opaque OLED and 50% from transparent OLED.

제주도 형제섬 화산체의 지질과 화산활동

박준범,고기원,전용문,박원배,문수형,문덕철,Park, Jun Beom,Koh, Gi Won,Jeon, Yongmun,Park, Won Bae,Moon, Soo Hyoung,Moon, Deok Cheol 대한자원환경지질학회 2021 자원환경지질 Vol.54 No.2

The Hyeongjeseom (Islet) is an erosional remnant of volcano which is located about 2 km northeast of sea shore of the Songaksan tuff ring, and is composed of volcaniclastic deposit, agglomerate and scoria deposit, ponded lava, aa lava flows, reworked deposit and beach deposit in ascending order from the base. The volcano is formed by volcaniclastic deposits and lava flows that recorded a transition from initial phreatomagmatic to magmatic explosions followed by lava effusion. It is interpreted that the outcropped volcaniclastic deposit may be a remaining portion of outer ring of a tuff cone. A bomb and a ponded lava yield geochemically basaltic trachyandesite compositions (SiO2 51.3 wt%, Na2O+K2O 6.0 wt%) and belong to olivine basalt with scarce (<5 %) phenocrysts of olivine, petrographically. By incremental heating Ar-Ar dating method, the plateau age of lava flow in the Heongjesom is 9.2±3.6(2σ) ka, implying that the volcanism of Heongjeseom may have occurred earlier than the Songaksan tuff ring which erupted ca. 3.7 ka. It still remains a task to find a volcano which matches with a historical record of volcanic activity that occurred a thousand years ago.