Al 7075 합금의 연삭잔류 응력에 관한 연구(Ⅰ)

김남경,최대봉 한국산업안전학회 1993 한국안전학회지 Vol.8 No.4

Grinding experiments for Al 7075 alloy were carried out to study the influence of grinding conditions and supply methods of grinding fluid on residual stress and surface roughneess and grinding force. The residual stress was measured by an X-ray method. The supply method of grinding fluid with a guide nozzle has large decrease value of the tensile residual stress and of grinding force than a normal nozzle. In sparking out state of the grinding work, it is desirable to decrease the depth of cut and the workpiece feedrate for improving surface roughness and mechanical properties.

토오송(藤村)의 『이방인(エトランゼエ)』론 -이향에 있어서 자타(自他)의 융화-

김남경 세계문학비교학회 ( 구 한국세계문학비교학회 ) 2004 世界文學比較硏究 Vol.11 No.-

범용 연삭기의 고능률 가공에 관한 기초적 연구

김남경,송지복,Kim, Nam-Kyung,Song, Ji-Bok 한국정밀공학회 1990 한국정밀공학회지 Vol.7 No.4

After observing grinding characteristics according to variable grinding condition in order to raise the grinding effect without making worse the grinding quality by using general grinding machine, main conclusions of this study are as follows; 1) When grinding quality is constant, grinding effect is changed according to the speed of the workpiece. But the rapidly increasing critical speed of table is($V_w{\leq}4m/min$). 2) As grinding effect is equal, the lower the speed of the workpiece becomes, the lower the grinding force and surface roughness obtains good results. 3) In terms of grinding method, the down cut grinding method produces good grinding surface royghness in case of little grinding depth;otherwise, the up cut method in case of more grinding depth.

미디어를 통해 본 제1차 세계대전의 양상 고찰 - 시마자키 도손의 『전쟁과 파리(戦争と巴里)』를 중심으로 -

김남경 한국일어일문학회 2020 日語日文學硏究 Vol.112 No.-

Just as the World War I changed the map of Europe, Toson’s "War Experience" in Paris served as a turning point in his life. Toson’s "In the Face of War" written for the Tokyo Asahi Shimbun predicted that "this world war would surpass the Franco-Prussian War and overturn the 20th century order," in contrast to Mimei Ogawa, who said in "Senso" that "newspapers report the story of the world war from the other side of the sea as if it were true," treating the war as just another story in the papers. This was one of the points which led to censorship of newspaper opinions and correspondents going into the war zones to lead the information warfare. The publication of the evening editions and the birth of the political and social divisions within Japanese Newspaper proved that the World War was also a "newspaper war" through the media. From this perspective, "Senso to Pari" by Toson, published via newspaper, was a sort of testimony made by the "people going through war" after the issue of martial law in Paris. What Toson noted in the battlefields of Paris were the actions of intellectuals, especially writers. The words of Charles Maurras’s, who dreamt of young France and also sought to unite ideals with reality, changed Tōson's conventional perception. Rather than separating literature and politics, he instead chose to embody the "literature movement as a political movement." As the French writers valuing the spirit of social and political engagement to the point of duty, they were among the first to spark "the nationalist movement" during wartime, igniting patriotism in the French youth to march them into war and also to stirring up the war fever among the general public.

Tier ΙΙΙ 규제 대응을 위한 신개념 금속 촉매 구조체 적용에 의한 선박용 SCR 시스템 소형화 연구

김남경,이진우,구윤장,정해영,최용기,박대원,임동하 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.1

국제해사기구는 선박 배기가스로 인한 대기오염 방지를 위해 해양환경규제를 강화하여 선박 배기가스 내 포함된 NOx 배출량이 Tier I 대비 80% 이상의 저감을 요구하는 Tier III 규제를 2016년 1월부터 발효하였다. 강화된 Tier III 기준을 만족시키기 위하여 선박 엔진의 Economizer 후단에 선박용 배연탈질 후처리 기술인 선택적 촉매환원법(Selective Catalyst Reduction, SCR)을 적용하고 있다. 본 연구에서는 선박 내 한정된 공간을 효율적으로 이용하기 위하여 기존 허니컴 형태의 SCR 촉매보다 고비표면적을 가지는 TiO₂ 나노튜브 지지체를 이용한 신개념 SCR 시스템 공정 연구를 수행하였다. SCR 시스템 소형화를 위하여 특수 형상의 금속 구조체 모듈을 설계하였고, 구조체 표면에 높은 비표면적의 TiO₂ 나노튜브를 제조하여 고가의 활성금속을 소량 담지하여 제조 비용을 최소화하였다. 또한 이를 통하여 SCR 시스템 소형화와 설치 및 유지보수 용이 등 선박용 SCR 시스템 비용에 대한 가격 경쟁력을 극대화 할 수 있었다.

Analysis of Deformation in the Carburizing-Quenching Heat Treatment of Helical Gears made of SCM415H Steel

김남경,배강열 한국정밀공학회 2015 International Journal of Precision Engineering and Vol. No.

Helical gears made of low alloy carbon steel are widely used in automotives as components of power transmission because theirhardened surfaces enhanced their strength and wear resistance. The hardened surface of the gear is commonly obtained by thecarburizing and quenching heat treatment. However, deformation of teeth of the gear caused by the heat treatment significantly affectsthe dimensional accuracy of the precision part, making noise, causing vibration, and hastening malfunction of the component in thepower transmission. In this study, investigation of deformation caused by the heat treatment of a helical gear made of SCM415H steelwas carried out by a numerical simulation with the finite element method (FEM). In order to examine the effect of the overallcharacteristics of the heat treatment on the deformation, temperature history, carbon diffusion, phase transformation, and axial stresswere analyzed at the same time. In addition, diffusion time and quenchant temperature were adopted specifically as processparameters to study their effects on the deformation. The simulated results revealed that the volume of the gear and the shape andlead of the tooth became somewhat smaller by heat treatment than before the process. Results showed that when the coolanttemperature was increased enough, deformation of the gear was reduced.

새 자료 『청량답순종심요법문』의 특징과 한자음 비교

김남경 영남대학교 민족문화연구소 2017 민족문화논총 Vol.66 No.-

This study aims to introduce duplicate copy for printing of 『Cheongryang- dapsoonjongshimyobeommoon』, and examine the contents, organizations, and Korean linguistic characteristics. This book consists of 6 different types of books including, 「Cheongnyang- dapsunjongsimyobeommun」, 「Budaesasimwangmyeong」, 「Hataekdaesa- hyeonjonggi」, 「Udusanchojobeomnyungseonsa-simmyeong」, 「Jingong- bogakseonsayeongjuga」, and 「Yeombulyukjabeommun」. This reminds the method of binding several copies into one volume on Yukgyeonghapbu. However, the content and components seem to be unique. Moreover, 「Yeombulyukjabeommun」 among the binding copies is annotated the existing 「Yeomburyukjabeommun(Namo Amitabha)」. For now, it is seen as the only one. Also, this book is very valuable in terms of rarity since it is the printed version and it can not be found a book printed from wood blocks. As the characteristics of duplicate copy for printing, it is shown the traces of correction and the uncorrected parts. In some cases, Chinese characters and sounds of Sino-Korean were replaced or newly written in, and deleted them with Chinese ink. In addition, sounds of Sino-Korean were often missing. In the sounds of Sino-Korean, there were each different aspects among the six types of books. This paper is highly valuable as a very rare book, has a high value in Korean history, bibliography, and Buddhism, and is worth as research material for sounds of Sino-Korean at the same time. 이 연구는 새 자료 『청량답순종심요법문』을 소개하고, 내용과 구성 및 국어학적인 특성을 밝히는 데 목적이 있다. 이 책에는 「청량답순종심요법문」, 「부대사심왕명」, 「하택대사현종기」, 「우두산초조법융선사심명」, 「진공보각징선사영주가」, 「염불육자법문」 등 모두 6종의 문헌으로 이루어져 있다. 이는 흡사 ‘육경합부’의 합철 방식을 떠올리게 한다. 그러나 이 책과 같은 내용 구성은 유일하다. 더욱이 합철된 문헌 중 「염불육자법문」은 기존의 ‘염불육자법문(나무아미타불)’을 주해한 유일한 문헌이다. 또한 이 책은 미 간행본으로서 판각본을 찾을 수 없으므로 희귀성 면에서 매우 가치가 있다. 등재본으로, 교정을 한 흔적과 미교정 부분들이 보였는데, 한자나 한자음을 교체하거나 새로이 기입, 먹으로 삭제한 경우가 있었다. 또한 한자음이 누락된 경우가 나타났다. 한자음에 있어서도 6종의 문헌 간 각각 다른 양상을 보인다. 본 문헌은 매우 희귀한 문헌으로서 그 가치가 높으며, 국어학 자료로서의 가치, 불경자료로서의 가치, 한자음 연구자료로서의 가치를 동시에 지닌다.

국제표준화회의참가보고 - 제21차 아태무선그룹(AWG-21) 국제회의

김남경,조영익,김대중,Kim, Nam-Gyeong,Jo, Yeong-Ik,Kim, Dae-Jung 한국정보통신기술협회 2017 TTA저널 Vol.171 No.-

시마자키 토오송(島崎藤村)의「첫사랑(初恋)」고찰 - "성(性)"의 눈뜸과 고뇌를 중심으로

김남경 한국일본근대문학회 2006 일본근대문학 - 연구와 비평 - Vol.5 No.-

조선시대 의서에 나타난 병명에 대하여 - 구급방류를 중심으로 -

김남경 국어사학회 2010 국어사연구 Vol.0 No.11

이 글은 조선시대 의서에 나타난 병명의 변천을 살펴보기 위한 것이다. 이를 위해 중세국어 문헌에 나타나는 ‘병’과 ‘병 관련’ 어휘를 간략히 살펴보고, 조선시대 대표적 의서인 구급방 , 구급간이방 , 언해구급방 3가지에 제시된 한자어 목록을 비교하여, 병명에 사용된 어휘를 고찰하였다. 이 글에서는 세 문헌의 한자어 목록을 대상으로, 역순 색인을 하여, 유형별로 묶어 정리하였고, 빈도가 높은 ‘-咬’, ‘-厥’, ‘-毒’, ‘-死’, ‘-傷’, ‘-腫’, ‘-瘡’, ‘-痛’, ‘-風’, ‘-血’ 10가지를 가나다순으로 제시하였다. 세 문헌에서는 대체로 한자어를 병명으로 다루고 있었다. 또한 한자어 병명은 주로 의학에 조예가 있는 특수 계층 사이에서, 고유어는 일반인들에게서 주로 쓰이는 등, 이중체계로 통용되었을 것으로 파악된다. This paper is written to consider the changes of names of diseases shown in medical books in Chosun dynasty. For this study, the names of diseases in the materials during the Korean medival time and the vocabularies related with diseases are examined simply. The lists of Chinese character words in the representative medical materials, such as Gugeupbang, Gugeupgan-ibang, and Eonhaegugeupbang are compared with each other and then the words used for the names of disases are considered. In this paper, the chinese character words in the three materials are targeted, indexed reversely, categorized by cases and the 10 cases of high frequency, such as ‘-咬’, ‘-厥’, ‘-毒’, ‘-死’, ‘-傷’, ‘-腫’, ‘-瘡’, ‘-痛’, ‘-風’, ‘-血’, are arranged in order of Korean characters, ‘가나다’ The Chinese character words are used mostly for the names of diseases in three materials. The medical words are considered to be used in a dual system. The names in Chinese character words are used popularly in a special class of people who have medical knowledge and the Korean traditional words are in common between ordinary people.