• Journal of the Korean Geographical Society
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• v.9
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• pp.43-53
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• 1974

이 글에서는 다음의 내용을 다루었다. 1. 김해평야의 원예농업의 성격, (1) 지역특화, (2) 운송원예지, (3) 시설원예지 2. 지역분화, (1) 원예시설의 종류, (2) 지역분화 3. 분화지별 사례연구, (1) 하우스 터널 다회작지(김해읍 어방3구), (2) 터널 다회작지(경락면 봉림리 통전), (3) 하우스 1회작지(주촌면 양동리 가속), (4) 파로지 재배지(오지면 동리 진동)

• Applied Chemistry for Engineering
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• v.10 no.7
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• pp.1073-1078
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• 1999

The objectives of this study are to examine the applicability of waste slurry from soda ash manufacturing industries as a coagulant for the treatment of wastewater containing fine silica particles, and to reduce the cost of wastewater treatment containing silica. Acceptable water quality can be obtained with a little dosing of waste slurry by gelation before the coagulation process so it could be concluded that the waste slurry from soda ash can be used as a coagulant. Based on the results of experiments, the optimum pH of gelation for silica in wastewater was around five and the treatment process with the gelation of silica could reduce the chemical dosage and waste sludge after coagulation. Dewatering and settling characteristics of the floc after coagulation with the waste slurry are better than those of the floc after coagulation with the lime milk only.

• Korean Journal of Heritage: History & Science
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• v.50 no.3
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• pp.64-87
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• 2017

Dahoe is a traditional braid in Joseon Dynasty. There are many Dahoe artifacts, which can give us a glimpse of the costume, culture, and life of that era. The study of Dahoe is necessary in various fields, but it is difficult because this manufacturing technique has been passed down from hand to hand. Few studies have been done so far. This research examines the manufacturing technique of KwangDahoe which is passed down by Maedeupjang (Decorative Knotting) and is generally used for knotting and/or tying objects. The main characteristic of TieKwangDahoe, made through the same method as WonDahoe, is the square hole in the middle. It was impossibile to remake the original braid because there is no confirmed number of the strand. Especially it is very difficult to do conservation and restoration on serious degradation state of the fiber. Therefore, it is necessary to analyze the non-destructive manufacturing techniques method for Dahoe and assess their applicability. First, we analyzed the artifacts' manufacturing technique based on the database of the Dahoe's manufacturing technique. In order to do that, we undertook schematization, restoration, morphological analyzation of the Dahoe. And then, X-ray CT scans were performed to improve the reliability of the DB. These results of scanning were interpreted based on the manufacturing technique. The selected Tie-KwangDahoe on the sword for the study are artifacts including artistic value and symbolism in Joseon Dynasty. Based on the analysis of the manufacturing technique, we found that both artifacts were made of 20-strand braid of single cross according to the length-scale measure. It was manufactured using 8-strand on left-right side, 12-strand on front-back side by the braiding manufacturing technique method Finally, this research suggests non-destructive analysis method of Dahoe's manufacturing technique is based on the database and the analysis results. I hope this research can be useful in various professional fields of Dahoe in the future. Moreover, I hope this can be of any help in preserving Korean cultural heritage.

• Journal of Industrial Technology
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• v.34
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• pp.67-70
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• 2014

In this paper, we propose a diagnosis algorithm for 25.8kV $N_2$ insulated Pad-mounted Switchgear in oder to improve reliability by preventing of fault in advance. The proposed algorithm can diagnose the problems of Pad-mounted Switchgear such as gas leakage and VI(Vacuum Interrupter) trouble (contact abrasion, coil aging etc.) by using pressure sensor, stroke sensor and coil current sensor.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.10
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• pp.366-373
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• 2019

Combat uniforms require higher tensile and tear strength than civilian products, and applied infrared reflectance from the recently developed nighttime fluoroscopy equipment to ensure combatant survival at night. Unlike other uniforms for civilian use, combat uniforms require durability against laundering because they may not be supplied again, once originally provided. Therefore, this study examined the changes in strength and changes in infrared reflectance after multiple washing of combat uniforms. The experiment confirmed that the strength change after the washing of combat uniforms 15 times was maintained in the same manner as the result after washing five times. In the case of infrared reflectance, the difference in reflectance after multiple washing treatments was greater than that in the case where washing was not performed. Therefore, although the durability in the case of combat uniforms is strong, it is necessary to maintain a reflectance higher than a certain level through the development of materials and the development of dyes.

• Journal of the Korea Society of Computer and Information
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• v.18 no.10
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• pp.81-88
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• 2013

Since nowadays mobile phone messages are flourishing, the application of electronic coupon (e-coupon) will become a trend for mobile users. E-coupon for mobile commerce can provide mobility for users and distribution flexibility for issuers. In this paper, we propose a mobile e-coupon system that just applies some simple cryptographic techniques, such as one-way hash function and XOR operation. In our system, the customer can control the number of issued e-coupons and the issuer can prevent them from double-redeeming. The customer does not need to perform any exponential computation in redeeming and transferring the coupons. Our scheme uses one-way hash chains for preventing from double-spending.

• Journal of Sericultural and Entomological Science
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• v.13 no.2
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• pp.145-150
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• 1971

During 1968-1970, rearing method being held yearly through was conducted to find adequate rearing season under joint projects in various areas; Chung-nam area, Kyung-buk area, Chun-nam area. The results are summarized as follows: 1. In view of rearing results, earlier transfer represents better, in spring season while early transfer worst in autumn season. If the conventional transfer sets on critical point in autumn season, the value recorded gradually decreased in earlier and later transfer and rapidly in earlier and later. 2. With rearing season, obtained results are degraded in order of spring(1st-4th), autumn(7th-10th), late autumn(11th), summer(5th) , early autumn(6th). Late autumn transfer could be delayed for about 6-7 days in southern area. 3. With referrence to rearing results alone, it may be concluded that 4 time ordinary rearing is adoptable in multi-rearing method, dividing into 2 seasons which are 2 time spring rearing(1st-3rd) and 2 time autumn rearings(8th-10th).1st period of spring rearing should be done 3-4 days ahead of the conventional transfer dates being practiced in each local, and 2nd period of spring transfer 5-6 days delayed. In autumn transfer, 2-5 days ahead and 3-6 days delayed batches tested are preferable. In branch rearing, it is recommended that 4 time branch rearing is conducted to divide into 2 seasons which are 2 time spring rearing(1st-3rd) and 2 time autumn rearing (9th-11th) and that the former is carried out in the same level of the 2 time spring rearing, latter in the same level of the conventional autumn .earing (9th) , and late autumn rearing (11th).

• Journal of Sericultural and Entomological Science
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• v.34 no.2
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• pp.58-58
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• 1992

우리나라 잠사업이 해외 견업국들과의 경쟁경합에서 계속 이겨 남기 위하여는 이들이 할 수 없는 혁신기술을 도입한 저cost 양잠 기술이 이루어져야 하고 다양한 생사 견제품을 개발 공급되어야 한다. 혁신기술의 도입, 저cost 양잠의 실현으로 양잠소득의 증배는 생산성의 향상에 있는 바 이에는 연간 다회육에 의한 시설의 확대없이 양잠 규모를 키우는데 있다. 이는 작업의 성력화, 단순화와 함께 양잠농가의 단기적 중점 사육에 그치는 $\boxDr$l주일 양잠$\boxUl$의 도입만이 최상의 길로 알려져 세계 최고 양잠기술을 걷고 있는 일본이 추진하고 있다.(중략)

• Journal of Industrial Technology
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• v.3
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• pp.27-32
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• 1983

This paper develops and provides formulas for calculating the Average Outgoing Quality and the Average Total Inspection for nine different sample/rest-of-lot disposition policies in which rectifying multiple sampling inspection by attribute can be carried out. The formulas are considered for perfect inspection as well as error-prone inspection.

• 대한생식의학회:학술대회논문집
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• 2003.12a
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• pp.90-90
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• 2003