• Journal of the Korean Society of Clothing and Textiles
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• v.23 no.3
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• pp.414-422
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• 1999

The purpose of this study is to develop multifunctional fabric that was improved antimicrobial activity and reduction rate of gas by treatment of mixture that was blended chito colla ad crosslinking material for Nylon. Antimicrobial activity was proved 99% reduction rat of gas in case of treated was icreased. The surface of treated fiber noted harshness and irregularity. Whiteness of treated on the baking condition was decreased as time and temperature was increased. Air permeability and moisure regain of treated equally was maintained. Water absorption and static voltage of treated were increased. KOSHI and T.H.V. of treated was increased than that of untreated B/W of treated was improved that, that of untreated and 2HB/B. W/T of treated were reduced.

• Textile Coloration and Finishing
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• v.13 no.1
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• pp.61-67
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• 2001

In this study, the fabrics were woven with worsted grams of Nm 2/72 and the structure of 5 harness satin on rapier and air-jet loom with different weft insertion mechanism and then fabrics were finished in the same processes. Also the physical properties were measured with KES-FB system and discussed with the characteristics of looms for comparing the difference of physical properties of the worsted fabrics which were woven with two different looms under the same structure. Pot shearing and compression properties, then showed similar behavior and the fabric finishing processes were seemed to affect much more than the difference of the loom types. For the surface roughness, the rapier fabrics showed higher irregularity than the air-jet fabrics.

• Textile Coloration and Finishing
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• v.11 no.4
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• pp.31-38
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• 1999

The purpose of this study is to develop multifunctional fabric that has improved antimicrobial activity and reduction rate of gas by treatment of mixture of chito colla and crosslinking material for polyester. The surface morphology of treated PET fabric was studied by scanning electron microscopy(SEM). The properties of the PET fabric, such as antimicrobial activity, whiteness, moisture regain, water absorption and static voltage, and handle were investigated. Antimicrobial activity of treated PET fabric was proved 99%. The surface of treated PET fabric showed harshness and irregularity. The whiteness of treated PET fabric on the baking condition was decreased as time and temperature was increased. The moisure regain of treated PET fabric equally was maintained. Water absorption and static voltage of treated PET fabric were improved. KOSHI of treated PET fabric was increased compared with the untreated PET fabric H/W of treated PET fabric was improved compared with the untreated PET fabric and 2HB/B of treated PET fabric were reduced.

• Journal of the korean Society of Automotive Engineers
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• v.4 no.1
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• pp.40-45
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• 1982

The spring constant and damping coefficient are vital factors of ride comfort and driving stability in the vibration of the vehicle which is mainly induced by a variety of the surface irregularity. This paper reviewed the optimum condition of the damping factor derived from the typical model of two mass-two degrees of freedom. Through the evaluation and discussion, it was presented that the spring of the torsion bar type was not effective for the driving stability in the large displacement of the wheel, and also that the damper with progressive performance has to be fundamentally selected to meet the requirement of the driving suability when this kind of spring is used as a suspension system of the vehicle.

• Transactions of the Korean Society of Automotive Engineers
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• v.5 no.6
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• pp.215-221
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• 1997

The ability of the engine starting performance of conventional ignition system being currently used in automobile gasoline engine is investigated, and the method of improving is discussed and experimented. The conventional ignition system cannot obtain high ignited voltage because its current is limited by decreasing of terminal voltage of battery at starting the engine also causes irregularity in the starting engine. This paper shows that problem can be improved practically by control of ignition energy properly according to the engine speed, consequently this experimental ignition system can eliminate to remarkable extent the function of the engine starting, and also enhance the performance of the engine at high speed.

• Journal of the Korean Home Economics Association
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• v.19 no.2
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• pp.39-56
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• 1981

This study aims to examine the patterns of family finance management I Jeju island. and then to suggest the desirable directions of family finance management of Jeju households. for the purposes, 157 households were surveyed with questionnaires. This study dealt with the family income forms and family finance management behavior and the relationship between the family income forms and the family finance management behavior. percentage and $X^{2}$were undertaken as statistical methods. the following results were obtained. 1. The family income forms of the households of Jeju Island showed the trend of irregularity and unbalance. And there were 5 types of family income forms. 2. In most of the households, the couple was centered o managing the family finance. 3. In many households, wife holds the responsibility for the cost of family living, and she manages it and the total income. Here we can conclude as follows. For the desirable and balanced household management, they must have some regular and continuous income sources, and try to plan and budget.

• Proceedings of the KIEE Conference
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• 2002.07d
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• pp.2451-2453
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• 2002

In this paper, we present an infrared sensors aided map building method for mobile robot using genetic algorithm and fuzzy logic. Existing Bayesian update model using ultrasonic sensors only has a problem of the quality of map being degraded in the wall with irregularity which is caused by the wide beam width of sonar waves and Gaussian probability distribution. In order to solve this problem we propose an improved method of map building using supplementary infrared sensors. In the method, wide beam width of sonar waves is divided by infrared sensors and probability is distributed according to infrared sensors' information using fuzzy logic and genetic algorithm.

• Proceedings of the KIEE Conference
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• 1999.07e
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• pp.2341-2344
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• 1999

In $SiH_4$ + Ar mixture gas contains 0.5% and 5% monosilane, this paper calculated electron swarm parameters in E/N has ratio 1$\sim$300(Td) and P : I (Torr) by MCS and Beq method. Electron swarm parameters showed a irregularity change in Ar mixed a little monosilane. It tends that the electron drift velocity is inversely proportional to E/N. It also represented characteristics that the transverse diffusion coefficient depends on E/N.

• Earthquakes and Structures
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• v.11 no.1
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• pp.179-193
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• 2016

The effectiveness of 100/30, 100/40 and SRSS directional combination rules on the response of asymmetric setback buildings is examined. Because of the irregularity in setback buildings, the maximum seismic response would be correlative with the direction of earthquake. To verify the directional combination rules of mode superposition methods, the time history analyses of setback buildings to real earthquake records are carried out. Example analyses have been used to compare the validty and accuracy of SRSS and percentage methods for frame and dual frame-wall systems.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.15 no.1
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• pp.308-314
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• 2002

Multiple epiphyseal dysplasia is an uncommon disorder, which was first described by Fairbank in 1935, characterized by irregularity in development of the epiphysis that manifests itself as late appearance and mottling of the ossification centers, knobby joints, stubby digits and minimal shortness of stature. It is typically transmitted as an autosomal dominant trait though recessive forms have been described. The diagnosis is established on the basis of the positive roentgenographic findings in combination with the absence of biochemical abnormalities. We report a case of multiple epiphyseal dysplasia, which was improved by herbal medication.