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IMU 센서 보정을 통한 정밀 위치인지 알고리즘에 대한 연구
이인남(In-Nam Lee),권영민(Young-Min Kwon),임창동(Chang-Dong Lm),송병훈(Byung-Hun Song) 대한전기학회 2014 정보 및 제어 심포지엄 논문집 Vol.2014 No.10
In this paper, we developed a recognition system which is the precise position through structured inertial navigation system. IMU(Inertia Measure Unit) includes an accelerometer, a gyro sensor and a geomagnetic sensor. The non-compensation sensor includes a variety of error components such as sensor noise and drift. The proposed algorithm proves the robust parameter variation by measuring the gait data. we converted the navigation coordination due to convenience of the position data.
이기남,이정호,송용선,정재열,김삼태,임진아,이인아,유형원,장용남,이택준,김홍기,천현자,유일수,김종수,백승화,Lee, Ki-Nam,Lee, Jeong-Ho,Song, Yong-Sun,Jeong, Jae-Yeal,Kim, Sam-Tae,Lim, Jin-A,Lee, In-A,Ryu, Hyeong-Won,Jang, Yong-Nam,Lee, Taek-Jun,Kim, 대한예방한의학회 2003 대한예방한의학회지 Vol.7 No.1
This study was carried out to evaluate cytotoxic effects of Houttuynia cordata $T_{HUNB}$ extracts on A549(lung cancer), B16(mouse melanoma), MDA-MB231(breast cancer) and SNU-C4(colon cancer) cell lines. We have determined by 3-(4, 5-dimethylthiazol-2-Yl)-2, 5-diphenyl-2H-tetrazoliumbromide(MTT) assay. The $150{\mu}g/ml$ concentration of chloroform extract of Houttuynia cordata $T_{HUNB}$ was shown significantly antitoxic activity on MDA-MB231$(65.96{\pm}5.68%)$ and SNU-C4$(55.94{\pm}7.39%)$ cell lines.
남치주,이흥식,이인세,Nam, Tchi-Chou,Lee, Heung-Shik,Lee, In-Se 대한수의학회 1983 大韓獸醫學會誌 Vol.23 No.1
Paravertebral anesthesia for operation of abdominal wall in Korean cattle were effectively accomplished with the following technique. Any problems in surgical procedure were not observed under the block of ventral branches of the last thoracic nerve and the first and second lumbar nerves with the administration of preanesthetic. The site of injection for blocking of ventral branches of the thirteenth thoracic nerve were approximately 5cm lateral to the midline from the posterior edge of spinous process of the 13th thoracic vertebra and about 10ml of local anesthetic was injected immediately anterior to the transverse process of the first lumbar vertebra through thin site. The block of ventral branches of the first and second lumbar nerves were obtained by injecting 10ml of local anesthetic immediately below the posterior edge of transverse process of the 2nd and 4th lumbar vertebra, respectively.
수소 생산을 위한 Sulfur-Iodine Cycle 분젠반응의 Pilot-Scale 공정 모델 개발 및 공정 최적화
박준규,남기전,허성구,이종규,이인범,유창규,Park, Junkyu,Nam, KiJeon,Heo, SungKu,Lee, Jonggyu,Lee, In-Beum,Yoo, ChangKyoo 한국화학공학회 2020 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.58 No.2
Sulfur-Iodine cycle (SI cycle)은 요오드와 황을 첨가하여 최종적으로 물을 열화학적으로 분해하여 산소와 수소를 생산하는 공정으로 황산분해, 요오드화 수소 분해, 분젠반응 등 세가지 반응들로 이루어져 있다. 분젠 반응은 두가지 공정 중간에 존재하므로 두 반응에 필요한 화학물을 조달하는 역할로 이에 대한 상분리 및 반응기에 대한 분석이 중요하다. 본 연구에서는 50 L/hr 수소를 생산하는 pilot scale의 Sulfur-Iodine Cycle 중 분젠 공정에 대한 모사, 민감도 분석, 민감도 분석을 토대로한 각각 상분리기와 분젠 반응기에 대한 최적 조건을 제시하였다. 열역학 물성치의 계산을 위해 Electrolyte Non-Random Two Liquid (ELECNRTL) model 사용하였다. 모델에 대한 신뢰도 확보를 위해서 실제 pilot scale의 공정 데이터와 검증을 수행하였다. 반응기의 종류를 선정하기 위해 Continuous Stirred Tank Reactor (CSTR)과 Plug Flow Reactor (PFR) 동일한 온도 및 부피 변화에서 SO<sub>2</sub> 전환율을 비교하였다. 상분리기 선정을 위해 3상 분리 시스템(기체-액체-액체)과 액체-기체 분리 후 액체-액체 구조에서 H<sub>2</sub>SO<sub>4</sub> 상과 HI<sub>X</sub> 상에서의 불순물들을 비교하였다. PFR에서 온도, 지름, 길이를 결정 변수로 SO<sub>2</sub> 전환율을 최대화 하기 위한 최적화를 수행하였는데, 온도 121 ℃와 PFR의 지름이 0.20 m 및 길이 7.6 m 일 때 SO<sub>2</sub> 전환율이 98% 최적 결과임을 확인하였다. 기존 pilot scale과 동일한 운전 조건 하에 PFR의 지름 3/8 inch, 길이 3.0 m, 120 ℃ 일 때 인입 몰량인 I<sub>2</sub> 및 H<sub>2</sub>O를 결정 변수로 SO<sub>2</sub> 전환율에 대한 최적화를 수행하였을 때, SO<sub>2</sub> 전환율이 10% 일때 H<sub>2</sub>O 및 I<sub>2</sub> 의 인입 몰량은 각각 17%와 22%로 감소하였다. 앞선 조업 조건 최적화 조건 (121 ℃, 지름 0.20 m, 길이: 7.6 m) 경우에는 SO<sub>2</sub> 전환율이 98% 일 때 H<sub>2</sub>O가 1% 그리고 I<sub>2</sub>가 7% 감소하였다. 상분리기에서 HI<sub>X</sub> 상내 H<sub>2</sub>SO<sub>4</sub> 최소화하는 목적함수에서 그에 상응하는 온도, I<sub>2</sub>와 H<sub>2</sub>O를 결정 변수로 설정하였을 때, H<sub>2</sub>O 몰량이 기존공정보다 17% 감소하고 I<sub>2</sub> 몰량이 24% 감소하였을 때 최소 불순물이 생성하였다. Simulation study and validation on 50 L/hr pilot-scale Bunsen process was carried out in order to investigate thermodynamics parameters, suitable reactor type, separator configuration, and the optimal conditions of reactors and separation. Sulfur-Iodine is thermochemical process using iodine and sulfur compounds for producing hydrogen from decomposition of water as net reaction. Understanding in phase separation and reaction of Bunsen Process is crucial since Bunsen Process acts as an intermediate process among three reactions. Electrolyte Non-Random Two-Liquid model is implemented in simulation as thermodynamic model. The simulation results are validated with the thermodynamic parameters and the 50 L/hr pilot-scale experimental data. The SO<sub>2</sub> conversions of PFR and CSTR were compared as varying the temperature and reactor volume in order to investigate suitable type of reactor. Impurities in H<sub>2</sub>SO<sub>4</sub> phase and HI<sub>X</sub> phase were investigated for 3-phase separator (vapor-liquid-liquid) and two 2-phase separators (vapor-liquid & liquid-liquid) in order to select separation configuration with better performance. The process optimization on reactor and phase separator is carried out to find the operating conditions and feed conditions that can reach the maximum SO<sub>2</sub> conversion and the minimum H<sub>2</sub>SO<sub>4</sub> impurities in HI<sub>X</sub> phase. For reactor optimization, the maximum 98% SO<sub>2</sub> conversion was obtained with fixed iodine and water inlet flow rate when the diameter and length of PFR reactor are 0.20 m and 7.6m. Inlet water and iodine flow rate is reduced by 17% and 22% to reach the maximum 10% SO<sub>2</sub> conversion with fixed temperature and PFR size (diameter: 3/8", length:3 m). When temperature (121℃) and PFR size (diameter: 0.2, length:7.6 m) are applied to the feed composition optimization, inlet water and iodine flow rate is reduced by 17% and 22% to reach the maximum 10% SO<sub>2</sub> conversion.
뇌혈관질환 환자에 대한 청심연자탕(淸心連子湯), 도담탕(導痰湯), 혈부축어탕(血府逐瘀湯), 보신익뇌탕(補腎益腦湯)의 간기능과 신기능 안전성 평가 : 후향적 연구
김민화,조임학,남이랑,김마리아,구기범,이세연,권정남,이인,홍진우,윤영주,김소연,한창우,박소정,최준용,신현규,Min-hwa Kim,Im-hak Cho,I-rang Nam,Maria Kim,Ki-beom Ku,Se-yeon Lee,Jung-nam Kwon,In Lee,Jin-woo Hong,Young-ju Yun,So-yeon Kim,Chang-woo Han 대한한방내과학회 2023 大韓韓方內科學會誌 Vol.44 No.3
Objectives: As Korea transitions into an aging society, the incidence of cerebrovascular disease is expected to increase. Herbal medicine is commonly used in Oriental medicine to treat cerebrovascular disease. However, there is insufficient clinical evidence to actively support the safety of herbal medicine in clinical practice. Therefore, the aim of this study was to determine the toxicity and safety of four herbal medicines (Cheongsimyeonja-tang, Dodam-tang, Hyeolbuchukso-tang, and Boshiniknai-tang) in patients with cerebrovascular disease. Methods: This study used electronic medical records to analyze patients admitted to an oriental medicine hospital from April 1, 2017, to December 31, 2020. Liver and renal function values at the time of admission and discharge were compared. Results: A total of 25 patients were included in this study. We found no significant differences in various variables, such as complete blood count, liver-renal function test, and urine, before and after the administration of the four herbal medicines. Additionally, no significant adverse events related to herbal medicine were observed. Conclusions: This study confirmed the safety of the four herbal medicines in patients with cerebrovascular disease who were hospitalized in a single Oriental medicine hospital.
한방 치료로 호전된 근위축성측색경화증에 대한 증례 1례 : 증례보고
허기윤,강희경,김민화,남이랑,김마리아,김소연,박소정,윤영주,이인,최준용,한창우,홍진우,권정남,Heo, Gi-yoon,Kang, Hee-kyung,Kim, Min-hwa,Nam, Irang,Kim, Mariah,Kim, So-yeon,Park, So-jung,Yun, Young-ju,Lee, In,Choi, Jun-yong,Han, Chang-woo,Hong 대한한방내과학회 2022 大韓韓方內科學會誌 Vol.43 No.5
Purpose: The purpose of this paper is to report the improvement of a patient with amyotrophic lateral sclerosis after long-term combined Korean medical treatment. Methods: A patient diagnosed with amyotrophic lateral sclerosis was treated with herbal medicine, acupuncture, pharmacopuncture, moxibustion, and rehabilitation for four separate hospital stays. To evaluate their respiratory discomfort and limb weakness, we used Manual Muscle Testing, the Pulmonary Function Test, and the Korean Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised. Results: The weakness of the muscles of the lower extremities and respiratory function was improved. Conclusion: We consider that combined Korean medicine treatments might be an effective treatment for muscle weakness and respiratory discomfort of amyotrophic lateral sclerosis. To verify the effectiveness of these treatments, further research is required.
한국재래산양 코눈물관계통의 해부학적 및 방사선학적 연구
서강문,강태천,이흥식,이인세,남치주,Seo, Kang-moon,Kang, Tae-cheon,Lee, Heungshik S,Lee, In-se,Nam, Tchi-chou 대한수의학회 1996 大韓獸醫學會誌 Vol.36 No.1
This study was carried out to identify the gross anatomical and radiographic characteristics of the nasolacrimal system of the Korean native goat. The results were as follows : The nasolacrimal system are composed of two lacrimal ducts, two lacrimal, canaliculus, one lacrimal sac and one nasolacrimal duct. The nasolacrimal duct was divided into proximal, middle and distal portion. The nasolacrimal duct took a straight course to be paralleled with nasal bones and opened close to the nostril on the medial surface of the alar fold. The diameter of lacrimal punctum, the length of eyelid margin to lacrimal punctum, the length of canaliculus and the diameter of lacrimal sac were 0.82~0.90mm, 1.06~1.54mm, 5.65~6.30mm and 1.77~2.06mm, respectively. The length of proximal, middle and distal nasolacrimal duct were 36.84~40.00mm, 23.53~24.31mm and 14.55~14.73mm, respectively. The diameter of the orifice of nasolacrimal duct, the length of lateral margin of nostril to orifice of nasolacrimal duct and the length of dorsum to orifice of nasolacrimal duct were 1.29~1.33mm, 12.97~12.53mm and 15.24~16.11mm. The skull index of Korean native goat was not significantly different from the length of nasolacrimal duct.