郭再祐 宜寧 倡義의 含意

최재호(Choi Jae-ho) 국방부 군사편찬연구소 2015 군사 Vol.- No.96

Kwak Jae-Woo(郭再祐) was the first person to raise Righteous Army during Im-Jin-Wae-Ran(壬辰倭亂), and in this paper I intend to analyze and research into the significance and background of his raising righteous army in Ui-Ryeong(宜寧). Firstly, I have given insight to the historical background and significance of the raising in Ui-Ryeong. as discussed in previous researches, the reasons why the continuous defeats of Cho-Seon in the early stages of Im-Jin-Wae-Ran were due to disorder in military administration and slackened discipline in national defence; however this paper puts emphasis on the necessity of looking into the exterior influential factor of the Japan, the world’s strongest military powerhouse at that time. In addition, I have discussed how his competence as a commander of the Righteous Army was possible to be formed, since Kwak was also a general who has outstanding realistic judgment and a sense of neutrality; and also the solidarity of the Ui-Ryeong troops. Secondly, I argued that Kwak’s raising of the Righteous Army in Ui-Ryeong contains more significance than just being the first, since he was able to raise the Army albeit the deficient conditions, especially centered around his relationship with Seon-Jo(宣祖). Moreover, I have examined the fact that Kwak’s raising gave peace to the unstable public at that time, and served as a catalyst for other raising of righteous armies to occur. Thirdly, I have confirmed that the strategic effects of the raising army in Ui-Ryeong is not just limited to local defence of Kyeong-Sang-Woo-Do(慶尙右道) beyond that it provides a turning point to the Choseon government to protect Ho-Nam(湖南) and the naval forces bases, restrain the exile of Seon-Jo and lead the participation of Myung(明) troops into war. In the thesis I have examined the defense strategies that Kwak adopted to fight against the Japanese troops three major skills, bird-rifle(鳥銃), swordwielding, charging at enemies and defense strategies adopted when positioned in a river. Among recent researches on the history of Im-Jin-Wae-Ran Righteous Army are at standstill. I proudly present this paper, as I wish this paper serves as a catalyst of more academic endeavors on the Im-Jin-Wae-Ran Righteous Army.

유도결합형 플라즈마 식각공정을 통해 제작된 460 nm 격자를 갖는 나노 광결정 특성

최재호,김근주,Choi, Jae-Ho,Kim, Keun-Joo 한국반도체디스플레이기술학회 2006 반도체디스플레이기술학회지 Vol.5 No.2

The GaN thin film on the 8 periods InGaN/GaN multi-quantum well structure was grown on the sapphire substrate using metal-organic chemical vapor deposition. The nano-scaled triangular-lattice holes with the diameter of 150 nm were patterned on a polymethylmethacrylate blocking film using an electron beam nano-lithography system. The thin slab and two-dimensional photonic crystals with the thickness of 28 nm were fabricated on the GaN layer for the blue light diffraction sources. The photonic crystal with the lattice parameter of 460 nm enhances spectral intensity of photoluminescence indicating that the photonic crystals provides the source of nano-diffraction for the blue light of the 450-nm wavelength.

炭化水素內에서의 Alkyl Iodides의 光分解에서 $II^{131}$과 Alkyl Iodides 間의 交換反應

최재호,Choi, Jae-Ho 대한화학회 1966 대한화학회지 Vol.10 No.1

The rate of exchange of I atom between alkyl iodides(ethyl or methyl iodide) and $I_2$ in n-hexane have been determined using $II^{131}$. It is found that the escape of $CH_3$ radicals from a solvent cage is faster than $C_2H_5$ radicals and that photolysis of $C_2H_5I$ is almost identical to that in the case of $CH_3I$.

fMRI를 이용한 망간 노출 용접공의 운동수행에 따른 뇌 활성도 평가

최재호,장봉기,이종화,홍은주,이명주,지동하,Choi, Jae-Ho,Jang, Bong-Ki,Lee, Jong-Wha,Hong, Eun-Ju,Lee, Myeong-Ju,Ji, Dong-Ha 한국환경보건학회 2011 한국환경보건학회지 Vol.37 No.2

Objectives: The purpose of this study is to analyze the effects of chronic exposure by welders to manganese (Mn) through an analysis of the degree of brain activity in different activities such as cognition and motor activities using the neuroimaging technique of functional magnetic resonance imaging (fMRI). The neurotoxic effect that Mn has on the brain was examined as well as changes in the neuro-network in motor areas, and the usefulness of fMRI was evaluated as a tool to determine changes in brain function from occupational exposure to Mn. Methods: A survey was carried out from July 2010 to October 2010 targeting by means of a questionnaire 160 workers from the shipbuilding and other manufacturing industries. Among them, 14 welders with more than ten years of job-related exposure to Mn were recruited on a voluntary basis as an exposure group, and 13 workers from other manufacturing industries with corresponding gender and age were recruited as a control group. A questionnaire survey, a blood test, and an fMRI test were carried out with the study group as target. Results: Of 27 fMRI targets, blood Mn concentration of the exposure group was significantly higher than that of the control group (p<0.001), and Pallidal Index (PI) of the welder group was also significantly higher than that of the control group (p<0.001). As a result of the survey, the score of the exposure group in self-awareness of abnormal nerve symptoms and abnormal musculoskeletal symptoms was higher than those of the control group, and there was a significant difference between the two groups (p<0.05, respectively). In the correlation between PI and the results of blood tests, the correlation coefficient with blood Mn concentration was 0.893, revealing a significant amount of correlation (p<0.001). As for brain activity area within the control group, the right and the left areas of the superior frontal cortex showed significant activity, and the right area of superior parietal cortex, the left area of occipital cortex and cerebellum showed significant activity. Unlike the control group, the exposure group showed significant activity selectively on the right area of premotor cortex, at the center of supplementary motor area, and on the left side of superior temporal cortex. In the comparison of brain activity areas between the two groups, the exposure group showed a significantly higher activation state than did the control group in such areas as the right and the left superior parietal cortex, superior temporal cortex, and cerebellum including superior frontal cortex and the right area of premotor cortex. However, in nowhere did the control group show a more activated area than did the exposure group. Conclusions: Chronic exposure to Mn increased brain activity during implementation of hand motor tasks. In an identical task, activation increased in the premotor cortex, superior temporal cortex, and supplementary motor area. It was also discovered that brain activity increase in the frontal area and occipital area was more pronounced in the exposure group than in the control group. This result suggests that chronic exposure to Mn in the work environment affects brain activation neuro-networks.

모바일 애드혹 네트워크에서 캐쉬 접근 시간 향상을 위한 시간보증 기반의 캐쉬무효화 기법

최재호,오재오,이명수,이상근,Choi, Jae-Ho,Oh, Jae-Oh,Lee, Myong-Soo,Lee, Sang-Keun 한국정보처리학회 2009 정보처리학회논문지 C : 정보통신,정보보안 Vol.16 No.1

모바일 장치의 증가와 무선 네트워크 기술의 발전으로 인해 새롭게 모바일 애드혹 네트워크에 대한 관심이 증가하고 있다. 최근까지의 연구는 데이터 접근성(Accessibility) 향상을 위해 데이터 복사본 활용이 효율적임을 증명하였다. 그러나, 데이터 복사본이 모바일 애드혹 네트워크에서 활용되기 위해서는 원본과 복사본 사이에 일관성(Consistency)이 확보되어야만 한다. 기존의 연구에서 사용되고 있는 일관성 확보 기법은 원본을 가진 노드에게 복사본 사용 노드들이 매번 일관성을 가지는지 확인하는 기법이 활용되었다. 그러나, 시간제약을 가지는 응용의 경우 원본을 가진 노드에게 확인하는 기법은 효율적이지 못하거나 때로는 심각한 문제를 일으킬 수도 있다. 본 논문에서는 시간제약응용을 위한 캐쉬 무효화 기법을 제안하고 있다. 제안하는 기법을 통해 기존의 일관성 확인 기법에서 일어나는 ‘롤백(Rollback)’ 문제를 해결할 수 있었으며, 접근시간(Access time) 측면에서 성능향상을 얻을 수 있었다. 또한 본 논문에서는 임계값 기반의 보완 기법을 제안한다. 우리는 실험 결과를 통해 제안하는 기법이 약간의 현재성(Currency) 손해는 있지만, 접근시간 측면에서 효율적임을 증명하여 준다. Due to the popularity of mobile devices and advances in wireless communication technologies, a mobile ad hoc network has received a lot of attention. In the existing data replication management research, the use of a replica has been shown to be an efficient technique for improving data accessibility. However, to use a replica in ad hoc networks, the data consistency between the original data and the replica should be guaranteed. In the traditional research, a mobile node should check an original data whether the data is updated or not. However, It may be costly or sometimes impossible to check the original data. In the case of the time constraint applications, the checking cost can cause more serious problem. In this paper, we propose the time-guarantee based cache invalidation schemes for time constraint applications and the threshold based compensation method to enhance the time-guarantee based scheme. The proposed schemes can remove the "rollback" problem. Simulation results show that our schemes outperform the previous ones in terms of access time with little loss of data currency.

외부 음향여기가 원주 후류 유동에 미치는 효과에 관한 연구

최재호,이상준,Choi, Jae-Ho,Lee, Sang-Joon 대한기계학회 1999 大韓機械學會論文集B Vol.23 No.5

The effect of an external acoustic excitation on the wake structure behind a circular cylinder was experimentally investigated. The sound wave was excited in the frequency range of the shear layer instability and two sound pressure levels of 114 and 120dB were used in this study. As a result, the acoustic excitation modified the wake structure by increasing the velocity fluctuation energy without changing the vortex shedding frequency. The acoustic excitation enhanced the vortex shedding process and promoted the shear layer instability. Consequently, the acoustic excitation reduced the length of the vortex formation region and decreased the base pressure. In addition, the vortex strength of vortices was increased and the width of the wake was spread out due to the acoustic excitation. When the excitation frequency was identical to the shear layer instability frequency, the effect of the external flow control on the cylinder wake was maximized. In addition, with increasing the sound pressure level, the effect of the external acoustic excitation on the wake structure increased.

한약에 의한 소세포성폐암의 퇴축 ; 8년간의 추적조사를 통한 증례보고

최재호,유화승,손창규,조종관,Choi, Jae-Ho,Yoo, Hwa-Seung,Son, Chang-Gue,Cho, Chong-Kwan 대한암한의학회 2005 大韓癌韓醫學會誌 Vol.10 No.1

Objective: It is the aim of the present paper to derive further studies evaluating the effectiveness of oriental medical treatment on SCLC patients. We present a case of SCLC patient who survives over 8 years. Method: We followed all of treatments and examination. We prescribed to the patient what to take HangAmDan (HAD) three times a day. Chest X-ray was performed to evaluate the therapeutic efficacy. Results and conclusion: The patient survives over 8 years. Chest X-rays were shown partial regression. Conclusion: This case may give us a possibility of that oriental medical treatment offers potential benefits for patients with SCLC.

국가지정기록물 관리현황과 개선방안 연구

최재호,이영학,Choi, Jae-Ho,Lee, Young-Hak 한국기록학회 2016 기록학연구 Vol.0 No.47

한국근현대사의 굴곡 속에서 공공 및 민간기록물이 훼손되고 유실되었다. 2007년 "공공기관의 기록물관리에 관한 법률"이 "공공기록물관리에 관한법률"로 전면 개정되면서, 민간에 소산되어 있는 주요 기록물을 파악 보존하기 위해 '국가지정기록물'을 지정하는 제도가 보강되었다. 중앙기록물관리기관에서 일정한 기준과 범위를 정하여 '국가지정기록물'을 지정하여 소장기관을 후원함으로서 공공기록물의 한계를 보완하고 한국사회의 역사상을 풍부히 하는데 기여할 것이라 기대하고 만든 제도이다. 2007년부터 2015년까지 총 14건의 기록물이 국가지정기록물로 지정되었다. 본고에서는 어떠한 기록물들이 '국가지정기록물'로 지정되었으며, 소장처들은 국가지정기록물을 어떻게 관리하고 활용해왔는지 살펴보고자 한다. 이를 통해 국가지정기록물 지정제도의 관리현황을 파악하고자 한다. 더불어 '국가지정기록물' 소장기관의 담당자를 면담하여 국가지정기록물 소장처의 기록물 관리현황과 서비스 현황 및 국가지정기록물 지정 효과를 살펴보고, 국가지정기록물 지정제도의 개선방안을 제언하고자 한다. This study is on management present and improvements on National Records Designation System. National Records Designation System is a system that supports management and preservation of changes of records designated by the government through consideration that such records are worth preserving permanently nationally among records acquired by individual or organization. This system is meaningful in a way that it established systematic foundation to hand down by informatizing historic private records which are in danger to be lost or damaged due to lack of proper care. However, compared to the number of designated records, the information that could be practically drawn from such records are limited. This triggered this study to be launched. National Archive sometimes promotes designation and management of National Designated records. Yet archival information service offering access of user to national designated records are very rare. I conducted survey and interview of managers, field research, and documentary research of 10 records holding institution that keeps national designated records currently. I considered that current management status of National Records Designation System can be figured out minutely through these research. As a result of such research, most of the records holding institutions offered display as their least archival information service. The objective of records informatization was to utilize the records. Also further plans on information service related to records and various utilization were suggested. records holding institution manager did not give positive answer on effect of designating national designated records and cooperation between National Archive. Support to National Archive only focused on preservation. For national designated records holding institution designated after 2011 were not getting proper support. In addition, National Archive's support rarely met records holding institution's need. In such circumstances, things to consider for improvements of National Records Designation System is as following. First, designation of national designated records should be based on the utilization of the record. Each records holding institution's willingness to utilize corresponding records and National Archive's ability to draw the willingness out should be considered. Also, it shouldn't be left as mere complementary policy of National Archive's selecting policy. Second, for National Records Designation System to be managed permanently, it should be changed as the system that supports enhancement of private records management. The aim should point to the direction where private can manage and preserve the records on their own. Third, There needs to be changes on the subject and process of national designated records designation. National designated record is the record that was considered valuable by the government among private records. Thus, such records should be the best one to show private field. Accordingly, records that represent contemporary society and include various states and contents should be chosen to be designated. Moreover, public discussion be formed by citizens and related professionals in order to properly select the record.

브로모벤젠의 Hot Atom Chemistry

최재호,Choi, Jae-Ho 대한화학회 1966 대한화학회지 Vol.10 No.1

The organic yields (i.e. fraction of nuclear events resulting in organic compound formation) of the radioative neutron capture reactions of halogens in purified bromobenzene have been determined varying extraction time, at $100^{\circ}C$ for thermal effect, varying irradiation time, varying neutron flux and with additional U. V. irradiation. Among the important results are; (1) The organic yields show no remarkable fluctuations with time following neutron irradiation; (2) The organic yields show no change with thermal energy; (3) The organic yields of degassed samples are same in different length of irradiation time whereas the yields of the samples in open air appear to increase with increasing time of irradiation (4) The organic yields increase remarkably with increased neutron flux; (5) The organic yields show a sharp increase by additional U. V. irradiation after neutron irradiation.

요오드化에칠의 光分解에 있어서의 Cage 效果

최재호,Choi, Jae-Ho,Willard, Jonh E. 대한화학회 1962 대한화학회지 Vol.6 No.2