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운동에너지 탄에 따른 전투시스템 내의 순간화재발생에 대한 해석적 연구
이승철(Lee Seung-Chul),전우철(Jeon Woo-Chul),이해평(Lee Hae-Pyeong),이헌주(Lee Heon-Joo),이창현(Lee Chang-Hyun) 제어로봇시스템학회 2012 제어로봇시스템학회 합동학술대회 논문집 Vol.2012 No.7
본 연구는 외부 위협탄에 의한 전투시스템의 취약성을 분석하기 위한 선행연구로써, 운동에너지 탄의 종류에 따른 가상의 전투차량 내부에 적재포탄에서 순간화재발생 여부에 대한 전산해석을 수행하였다. 본 해석은 Autodyn 프로그램을 사용하였으며 순간화재발생을 판단하기 위해 Lee-Tarver ignition and growth model을 이용하였다. 본 계산에서 운동에너지 탄은 type A와 type B 두 가지로 설정하였고, 고폭탄은 COMPB, TNT 및 PBX9404를 설정하였다. 전산해석 결과, 고폭탄의 재질이 TNT와 PBX9404가 COMPB 재질보다 순간화재발생 확률이 상당히 높음을 알 수 있고 type B의 운동에너지 탄이 type A 보다 순간화재발생 확률이 다소 높음을 알 수 있었다.
운동에너지 탄과 적재포탄에 따른 전투시스템 내부에서의 순간화재발생에 대한 전산해석
이승철,전우철,이해평,이헌주,Lee, Seung-Chul,Jeon, Woo-Chul,Lee, Hae-Pyeong,Lee, Heon-Joo 한국군사과학기술학회 2013 한국군사과학기술학회지 Vol.16 No.6
In this paper, numerical analysis was performed about whether the flash fire of loaded shells breaks out in the virtual combat vehicle according to sorts of the kinetic energy ammunition as the preceding research for vulnerability analysis inside the combat system by an external threaty ammunition. In this simulation, Autodyn program was used and the Lee-Tarver ignition and growth model was used to determine the flash fire outbreak. In this study, the kinetic energy ammunition was set of type A and type B in two kinds and the loaded shells was set of COMPB, TNT, PBX9404 and ANB. As a result, TNT and PBX9404 have much higher flash fire probability than COMPB in high explosive, ANB has very low flash fire probability.
서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)
김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1
In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.
이연우,김혜경,남시병 삼척대학교 산업과학기술연구소 2001 産業科學技術硏究論文集 Vol.6 No.1
In this paper, we propose a minutiae extraction algorithm using the block 2D FFT from the binarization fingerprint images. At first, binary fingerprint images carry out the histogram equalization and block binarization processing. For extract fingerprint minutiae, we executed the 2D FFT to block that divided into the 32×32 blocks from binarization image. Next step is removing the pseudo minutiae from the block for the minutiae extraction. Removing Pseudo minutiae processes executed the removing horizontal, vertical direction elements and diagonal lines. So that it extracts the core and delta points remained which include the blocks. In the end, we extract the minutiae by removing the block part of the delta point. Also, we gained efficient throughput 88% extraction rate of minutiae to the number of 50 fingerprint image.
'姐姐'의 기저형 /t??iγ214 t??iγ214/에서 표면형 [t??je21 dzjE4]까지의 유도과정에 대해
李海雨 한국중국문화학회 2002 中國學論叢 Vol.14 No.-
In this paper, I have examined the phonological rules and phonological processes of Mandarin Chinese 'jieˇjie(姐姐)'. The discussion are divided into two parts: the first one dealing with the phonological rules that occur from the underlying representation '姐姐'/teiγ214 teiγ214/ to the phonetic representation 〔teje21 dzjE4〕, and the second one dealing with the phonological processes that derives the phonetic representation 〔teje21 dzjE4〕from the underlying representation /teiγ214 teiγ214/. I propose the following six phonological rules: ① the fronting of the main vowel /γ/, ② the semi-vowelizing of medial /i/, ③ the neutralization of the second tone in reduprecation, ④ the third tone sandhi rule, ⑤ the voicedness of the initials in neutral tone, ⑥ the laxation of the tense sound in neutral tone. These six rules should be well organized to derive the phonetic representation 〔teje21 dzjE4〕from the underlying representation /teiγ214 teiγ214/. If the rule ordering is not pertinently applied, the phonetic representation may not be produced. Especially, the rules ④⑤ and ⑥ should be applied after the rule ③ because they can occur under the condition of the tonal neutralization.
Acetazolamide가 적혈구막의 Na-K-ATPase 활성도에 미치는 영향
이우영,박해근 충남대학교 의과대학 지역사회의학연구소 1986 충남의대잡지 Vol.13 No.1
This study was attempted to investigate the action of acetazolamide on the Na-K- ATPase activity in the rabbit RBC membrane. The red cell ghost was obtained by means of Rossenberg and Guidotti and the amounts of isolated inorganic phosphorus as an index of Na-K-ATPase activity was determined by the method of Fiske and SubbaRow. The Na-K-ATPase activity was expressed as the unit of μM Pi/10min/g-protein. The results obtained are summarized as follows. 1. The Na-K-ATPase activity of the RBC membrane was related to incubation time. but the activity per g-protein was large at the 10 min incubation. 2. The Na-K-ATPase activity was related with protein concentration of incubation medium, while there were no difference the activity per g-protein relatively greater in 90 mg/ml protein. 3. 0.5 and 10.0 mg/ml of acetazolamide was inhibit the Na-K-ATPase activity while 5.0 mg/ml of it enhanced the activity. From the above results, it was suggested that the acetazolamide affect Na^+ transport across the cell membrane by alter the Na-K-ATPase activity.
근저항 트레이닝이 20대 여성의 신체조성과 체력에 미치는 영향
이상우,김봉환,서해근,강신범,나재철 대한스포츠의학회 1999 대한스포츠의학회지 Vol.17 No.1
The purpose of this study was to investigate the effect of muscular resistance training on the body composition and the physical fitness. The subjects of study were 6 women in their twenties who had not taken will in ordinary days and had not gone through regular training. The above subjects were measured by body composition and physical fitness pre and post 8 weeks training. The frequence training was more than 4 times a week and the duration of training of each session was 70 miniutes. The results are as fallows: 1. In muscular resistance training for 8 weeks, % Fat 1.8%(7.76%), and Fat weigh 3.0kg(23.43%), wee decreased, while LBM 3.0kg(7.10%) was increased, However, there was no differences. 2. In muscular resistance training for 8 weeks, it was exposed to be increased a little in Left arm strength 2.65kg(9.60%), Fight arm strength 2.03kg(7.78%), Left leg extention strength 12.47kg(6.16%), Right leg extention strength 4.50kg(2.35%), Left leg flextion strength 13.67kg(13.01%), Right leg flextion strength 13.25kg(12.70%), Standing trunk flextion 3.25㎝(18.16%), Front split 2.67㎝(1.65%), Side step 3.83friq(11.16%), Vital capacity 5.02cc(0.22%).
李海雨 중국어문연구회 2000 中國語文論叢 Vol.19 No.-
臺灣從蔣介石政府大力推行國語以來, 國語普及有相當的成果, 除了老人層以外幾乎沒有人不會說國語. 但是臺灣人口中臺灣本土人占百分之八十, 所以臺灣國語不得不受臺灣語的干涉. 我們仔細觀察臺灣人實際使用國語的狀況, 許多人的發音和臺灣標榜的標準國語相比, 惑多惑少都有一些差別. 本論文專門討論臺灣國語發音的情況, 包括聲母, 韻母和聲調. 臺灣標準國語(相當於北京話音韻系統)22個聲母當中, 臺灣實際的國語語音減少九個聲母, 只剩下十三個聲母--[p, ph, m, t, th, l, ts, tsh, s, k, kh, x, 口]. 捲舌音[ts, tsh, s]和舌面音[t口, t口h, 口]都合倂爲舌尖音[ts, tsh, s], 盾齒音[f]變化爲喉音[h][n]ghk[l]互相混淆, [z]和[ㅣ]變成[ㅣ]的單向演變. 在韻母方面, 臺灣語音缺乏臺灣標準國語具有的韻母的時候, 以臺灣人容易發音的臺灣語韻母代替臺灣標準國語韻母, 北京話裏常見的兒化韻?少存在. 聲調的最大特徵是四聲調値起落幅不大, 彼此差異性減少, 使單字的基本語調趨向平淡. 對輕聲的處理, 只注意少數的固定輕聲, 一律發本調. 總而言之, 臺灣實際的國語雖然基礎於臺灣標準國語, 但是?的發音系統特性反而 和臺灣語音韻系統相似. 臺灣標準國語中的某些發音是母語(卽臺語)中沒有的. 這類音就以母語中類似的發音代替, 省略惑添加, 形成臺灣國語固有的特性.
Ge 완충층의 사용과 Ge 완충층의 in situ 열처리 온도의 변화에 대한 GaAs/Ge/Si 계면에서 전위의 거동
우용득,이해익 又石大學校 1998 論文集 Vol.20 No.-
Effect of in-situ annealing after the Ge buffer layer growth on the behavior of defects at the interfaces of GaAs/Ge/Si structure grown by molecular beam epitaxy(MBE) were investigated using transmission electron microscopy (TEM) technique. Results show that the threading dislocations toward the GaAs layers were blocked more efficiently at the Ge/GaAs interface, when an in situ thermal annealing at 750℃ for 10 minutes was performed after the Ge buffer layers Growth. It was also observed that dislocation density was independent on the thickness of Ge buffer layer. Neither stacking faults nor microtwins were observed in the samples studied. probably because surface morphology of the Ge buffer layer improved due to the in situ annealing and nucleation of the defects was suppressed a result.