김해지역의 산성강우와 기압유형

박종길,황용식 한국환경과학회 1999 한국환경과학회지 Vol.8 No.3

This study was carried out to investigate the characteristics of acidity in the precipitation and weather patterns that were influenced it at Kimhae area from March, 1992 to June, 1994. The range of pH value in the precipitation at Kimhae is 3.45 to 6.80 and the average is pH 4.62, and the major anion components associated with acidity in the precipitation are Cl^-, SO_4^2- , NO_3^-. These distributions are to be expected the influence of industrialization such as, urbanization and construction of industrial complex at Kimhae area and the long range transporting of air pollutants from China. The weather patterns governing the acid rain at Kimhae were classified broadly into four types(Cyclone(type I-a, type I-b), Migratory Anticyclone(type Ⅱ), Tropical Cyclone(type Ⅲ), Siberia High(type Ⅳ)) and weather pattern which had the most occurrence frequency of acid rain was type I-a and the average pH value of precipitation in this pattern was 4.45, and we are found that the source area of air mass which was accompanied with high acidic precipitation in Kimhae was the central China include with Peking through the analysis of surface weather maps, 850 hPa wind fields, and the streamline analyses.

Head-Space SPME에 의한 생체시료 중 메스암페타민류 분석(Ⅲ)

박미정,최상길,손행자,최화경,최영남,허상철,박종서,정희선 內務部 國立科學搜査硏究所 2002 國立 科學 搜査 硏究所 年報 Vol.34 No.-

연안 도시 대기오염 물질의 농도분포 특성

박종길,석경하,김지형,차주완 한국환경과학회 2002 한국환경과학회지 Vol.11 No.12

This paper aims to find the characteristics of concentration distribution of coastal urban air pollutants. For this purpose, It was used the daily meteorological data and hourly concentration data O_3 and NO_2 in Busan metropolitan city from 1994 to 1996. It was investigated the annual and monthly distribution of ozone and nitrogen dioxide concentration at each site in Busan, and also investigated the characteristics of concentration change of air pollutants with time under the sea breeze. As a results, the concentration of nitrogen dioxide and ozone tend to be increased every year and nitrogen dioxide concentration is higher than ozone concentration at all site in Busan. The concentration of ozone is high in summer season and low in winter season, but the concentration of nitrogen dioxide have a reversed trend. The monthly peak concentration of ozone occurred in April and September, while the monthly minimum concentration of nitrogen dioxide occurred in August. Their trend were indentified by sites near the coastline than sites stands apart from the coastline. The sea breeze occurred annual mean 81 days in Busan from 1994 to 1996. The main wind direction of sea breeze was classified into southeasterly. In case of southwesterly, It was pronounced the south wind and southwest wind. In case of southeasterly, the occurrence frequency of east wind was high. Especially, the concentration of urban air pollutants, such as ozone and nitrogen dioxide, were high on time which the sea breeze flow, and the areas that ozone concentration was high moved from outside part to central part of city with time. In costal urban such as Busan, the wind direction of sea breeze is influenced the influenced the change of ozone and nitrogen dioxide concentration on time which the sea breeze flow at each site and air pollutants concentration of sites on the pathway of sea breeze.

기상요소에 의한 대기오염물질의 건성침적량 추정

박종길,Allen, Eric R. 인제대학교 낙동강환경연구소 1998 심포지움(인제대학교 부설 환경연구소 발표논문집) Vol.- No.7

戰略的 經營을 爲한 生産戰略의 內容

朴相範,李敎相,吉鍾九 동국대학교 경영관리연구소 1989 經營經濟論叢 Vol.13 No.-

The enterprise can grow up and continue to exist, when it pursues the business strategy which properly copes with the management condition and the change of industrial structure. As the business strategy is a means of attaining the goal of the enterprise, it is an all-out plan containing all parts for long - term purposes, and it is a king of operation which harmonizes supply of resources with distribution. As the ultimate goal of the business strategy lies in having an advantage over a rival company, the substances of the competition strategy are a differentiation and an advantage and a focus strategy. The cost leadership strategy can minimize costs and make profits above the average through effective economy, accumulation of experience, cartailment of indirect cost and an outlay for advertisement. However, the cost leadership strategy can't disregard the quality of the goods and service. As the differentiation strategy has an advantage over a rival company through the quality of the goods and the design based on up - to- data technology, it can also make profits above the average in business. Even by the differentiation strategy, the advantage in cost can't wholly be disregarded. But only in the order of priority, the differentiation strategy gets the lead.. While the subject matters (substances) of the business strategy are a long - term object of the enterprise and a distribution of resources, the production strategy is a long - term goal that the production parts pursue. The goals of the production fields are productivity, delivery, quality, delivery speed, adaptability, design and so on. As these subjects are related to "trade off", the establishment of the subject on the order of priority is required. In other words, when the competition strategy of the enterprise consists in the advantage in cost, the goal of the production part lies in productivity and efficiency. And when the enterprise pursues the differentiation of the competition strategy, the object of the production part lies in quality, adaptability, diversification and design. In the courses of all the policy decisions, the competition strategy and the production strategy as a goal of part must be kept consistent and be harmonized.

한반도에 내습한 태풍과 ENSO 현상과의 관계

박종길 인제대학교기초과학연구소 1997 자연과학 Vol.1 No.-

본 연구는 한반도에 내습한 태풍과 ENSO 현상과의 관계를 알아보기 위한 것으로 태풍의 발생에 관한 자료는 일본기상청에서 발행한 Geophysical Review(1954~1987)와 한국기상청에서 발행한 한국태풍연보(1904~1983)에서 추출하였으며, 태풍의 운동에너지와 ENSO 현상과의 관계를 알아보기 위해 기상월보와 기상연보를 사용하였다. 본 연구에 의하면, 남방진동지수의 주기는 3.75년이며 한반도에 내습하는 태풍의 발생주기와 북서태평양상에서 발생하는 태풍의 발생주기와 일치하고 있다. ENSO 년의 경우, 태풍의 주요 발생지역은 8~12", N,148"~154"E와 14"~18" N, 130"~140"E였으며, Anti-ENSO 년에는 16"~18"N,126"~138"E였다. 북서태평양에서 태풍의 연평균 발생빈도는 ENSO 년에는 평균값보다 낮았으며 Anti-ENSO 년에는 많았다. ENSO 년에 한반도에 내습한 태풍의 평균 운동에너지는 0.978×10J 였으며 Anti-ENSO 년에는 그보다 훨씬 강하였다. The purpose of this study is to find out the relation between the ENSO events and typhoon visit to Korea. The data concerning typhoon occurrence are extracted from the Geophysical Reviews(1954~1987) issued by the Japan Meteorological Agency and Typhoon Report of Korea(1904~1983) by the Korea Meteorological Service. In addition, Monthly Weather Report and Annual Climatological Report have been used to reveal the relation between the kinetic energy of the typhoon and the ENSO events. According to this study, The period of the occurrence period of the typhoon of the Northwest Pacific. In case of ENSO years, the main occurrence areas of typhoon were the area of 8"~12"N, 148"~154"E and of 14"~18"N, 130"~140" E. In Anti-ENSO years, the occurrence area of typhoon was 16"~18"N, 126"~138" E and especially at the northwest area of the Northwest Pacific compared with ENSO years. The annual mean occurrence frequency of the typhoon over the Northwest Pacific is lower than normal in ENSO years and higher in the Anti-ENSO years, and the average kinetic energy of the typhoon visiting Korea in ENSO years was 0.978×10 J, which is larger compared with the one in the Anti-ENSO years.

낙동강 하구의 대기환경특성

박종길 인제대학교 낙동강환경연구소 1992 심포지움(인제대학교 부설 환경연구소 발표논문집) Vol.- No.1

TiO_(2)-SiO_(2) 나노 복합미립자의 합성

박진구,송영상,김종길,김호건 한양대학교 이학기술연구소 2005 이학기술연구지 Vol.8 No.-

TEOS(tetrethyl orthosilicate)로 부터 제조된 구형의 SiO_(2) 미립자를 TiOCl_(2) 수용액과 반응시켜 SiO_(2) 표면에 10~20㎚ 두께의 균일한 TiO_(2)막이 형성된 TiO_(2)-SiO_(2) 복합미립자를 합성하였다. X-선 회절 분석결과 합성초기의 복합체 TiO_(2)는 비정질 상태이지만 700℃이상의 열처리에 의하여 anatase결정상이 나타났고 900℃이상에서 rutile결정상으로 전이됨을 확인하였다. TiO_(2)-SiO_(2) composite particle in which the homogeneous TiO_(2) layer with width of 10~20㎚ was formed on the SiO_(2) surface by the reaciton of the spherical SiO_(2) particale in TiOCl_(2) solution As the resulte of XRD analysis the phase of TiO_(2) coated on SiO_(2) sphere was noncrystalline state however it was changed to anatase crystal state by heating at 700℃and th anatase phase was transfomed to reile phase at the aboce 900℃

높은 지향성을 갖는 Air Line 결합기 설계

길준범,이성원,최영호,박종임,안달,박준석 호서대학교 반도체제조장비국산화연구센터 2000 학술대회 자료집 Vol.2000 No.1

본 논문에서는, 일반적인 스트립 구조의 결합기가 갖는 문제 즉, 높은 온도에서 나쁜 특성을 보이는 문제점을 극복하고자 Air Line Type의 결합기를 구현하였다. 또한 이 결합기는 24dB이상의 지향성을 가지고 있다. 해석을 위해 짝수 모드와 홀수 모드 해석법을 사용하였고, EM-Simulation으로 확인한 특성과 실제 제작된 20dB, 30dB Cellular 대역(800∼900MHz) Air Line 결합기의 결고 특성은 좋은 일치를 보여주고 있다. 또한 최대 장점인 온도 특성은 온도 데이터를 통하여 온도에 강한 특성을 보임을 알 수 있다.

부산지방 강수량의 변화시점에 관한 통계적 접근

박종길,석경하 한국환경과학회 1998 한국환경과학회지 Vol.7 No.1

This paper aims to estimate the change point of the precipitation in Pusan area using the several statistical approaches. The data concerning rainfall are extracted from the annual climatological report and monthly weather report issued by the Korean Meteorological Administration. The average annual precipitation at Pusan is 1471.6 ㎜, with a standard deviation of 406.0 ㎜, less than the normal(1486.0 ㎜). The trend of the annual precipitation is continuously decreasing after 1991 as a change point. And the statistical tests such as t-test and Wilcoxon rank sum test reveals that the average annual precipitation of after 1991 is less than that of before 1991 at 10% significance level. And the mean annual precipitation in Kyongnam districts is also continuously decreasing after 1991 same as Pusan.