• Wind and Structures
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• v.30 no.6
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• pp.575-595
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• 2020

The characteristics of winds associated with tropical cyclones are of great significance in many engineering fields. This paper presents an investigation of wind characteristics over a coastal urban terrain based on field measurements collected from multiple cup anemometers and ultrasonic anemometers equipped at 13 height levels on a 356-m-high meteorological tower in Shenzhen during severe Typhoon Hato. Several wind quantities, including wind spectrum, gust factor, turbulence intensity and length scale as well as wind profile, are presented and discussed. Specifically, the probability distributions of fluctuating wind speeds are analyzed in connection with the normal distribution and the generalized extreme value distribution. The von Karman spectral model is found to be suitable to depict the energy distributions of three-dimensionally fluctuating winds. Gust factors, turbulence intensity and length scale are determined and discussed. Moreover, this paper presents the wind profiles measured during the typhoon, and a comparative study of the vertical distribution of wind speeds from the field measurements and existing empirical models is performed. The influences of the topography features and wind speeds on the wind profiles were investigated based on the field-measured wind records. In general, the empirical models can provide reasonable predictions for the measured wind speed profiles over a typical coastal urban area during a severe typhoon.

• Journal of the Korean Society of Costume
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• v.54 no.7
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• pp.27-40
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• 2004

The purpose of this paper is to make it easy to reproduce the Pattern and sewing technique of men's coat in 18th century. which are modified in order to be made readily available in Korean theatre costume. The investigation was performed in three steps. 1st, The papers and records about development and change of men's coats were reviewed. End; The whole process of the way how to make a typical 18th century men's coats were sewn. 3rd ; The modification or revision into the more simplified pattern using by CAD system and sewing technique were suggested in detail. The size of the pattern in the original one, which we chose for this research, was generally small. with the side line being moved back a little. Moreover, arm movements were severely restricted because of the small arm-hole. The problems of original pattern were corrected by making both front and back pattern snug and side line being moved to the front, and making arm-hole wider. In the sewing technique, the simple way how to use of Padding, inter-linings and linings and to create the most noticeable figure of 18th century men's coat. This article may help theatre costume production in Korean performing art.

• The Journal of Korean Medicine
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• v.1 no.1
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• pp.63-73
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• 1980

Through the classical records of the oriental medicine my investigation of the authorities of the epilepsy by classifying the etiology, symptoms and the treatments of it and camparing them has led to the following conclusion. 1) The etiology of 'epilepsy' can be classified into wind(風), sputum(痰), fever(熱) convulsion and caul. 2) The symptoms of it fall into the following nine ones; Sudden strong contraction making Sounds within the mouth, unoonsciousness, mutual jerks of the facial muscules foaming form the mouth, trismus contractive of extremities general body rigidity recovering after the fit and no rest. 3) The symptoms of Epilepsy are classified into 'Um type epilepsy'(癲) and the 'yang type epilepsy'(癎), and then the former has nine kinds in sympatomatic state and latter seventeen. 4) The treatment of the case can be made by using of cold drugs mainly for the purpose of mind purification(淸心), fever abatement(降火), Sputum-elimination(化痰) and normalization of metabolism(順氣) and Sometimes the function of the liver should be normalized by giving liver function normalizing medicine after Emetics. In comparison with the western way of using Anti convelsents therapy and electricshock therapy, the way of its treatment based on the classification of the causes is considered to be far more desirable.

• Korean Journal of Acupuncture
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• v.32 no.1
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• pp.13-19
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• 2015

Objectives : The present study was conducted to unveil the existence of a medical technique called Chicken-foot-shaped needling method("Gaejokchimbup") from the mid-Chosen Dynasty era and for historical investigation of this technique. Methods : Among historical literatures from China, Korea, and Japan on acupuncture and moxibustion, mentions of "Gaejok"(chicken foot) were searched for and studied. Results : Among the Chinese literatures, some medical scholars made references to "chicken foot" after mentioned in Lingshu Jing. In the Korean literatures, Donguibogam gave it the name Gaejokchimbup and mentioned it. In Japan's Chimgugeukbeecho which contains the acupuncture and moxibustion knowledge of Korean doctors, the procedural method was explained in detail. Conclusions : According to these ancient medical literatures, Gaejok was used largely in two meanings. First meaning was performing acupuncture with 3~4 needles in a chicken foot-like shape on a narrow area, whereas the second meaning was using one acupuncture needle and repeatedly inserting the needle while changing directions according to a path in the shape of a chicken's foot. Based on Rumenshiqin and Chimgugeukbeecho, which contain records of actual clinical experiences, Gaejokchimbup appears to have been used as the second method mention above.

• Steel and Composite Structures
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• v.16 no.4
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• pp.357-374
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• 2014

The design basis is being shifted from strength to deformation in modern performance-based design codes. This paper presents a practical method for optimization of eccentrically braced steel frames, based on the concept of uniform deformation theory (UDT). This is done by gradually shifting inefficient material from strong parts of the structure to the weak areas until a state of uniform deformation is achieved. In the first part of this paper, UDT is implemented on 3, 5 and 10 story eccentrically braced frames (EBF) subjected to 12 earthquake records representing the design spectrum of ASCE/SEI 7-10. Subsequently, the optimum strength-distribution patterns corresponding to these excitations are determined, and compared with four other loading patterns. Since the optimized frames have uniform distribution of deformation, they undergo less damage in comparison with code-based designed structures while having minimum structural weight. For further investigation, the 10 story EBF is redesigned using four different loading patterns and subjected to 12 earthquake excitations. Then a comparison is made between link rotations of each model and those belonging to the optimized one which revealed that the optimized EBF behaves generally better than those designed by other loading patterns. Finally, efficiency of each loading pattern is evaluated and the best one is determined.

• Computers and Concrete
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• v.21 no.1
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• pp.55-66
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• 2018

A large main shock may consist of numerous aftershocks with a short period. The aftershocks induced by a large main shock can cause the collapse of a structure that has been already damaged by the preceding main shock. These aftershocks are important factors in structural damages. Furthermore, despite what is often assumed in seismic design codes, earthquakes do not usually occur as a single event, but as a series of strong aftershocks and even fore shocks. For this reason, this study investigates the effect and potential of consecutive earthquakes on the response and behavior of concrete structures. At first, six moment resisting concrete frames with 3, 5, 7, 10, 12 and 15 stories are designed and analyzed under two different records with seismic sequences from real and artificial cases. The damage states of the model frames were then measured by the Park and Ang's damage index. From the results of this investigation, it is observed that the sequences of ground motions can almost double the accumulated damage and increased response of structures. Therefore, it is certainly insufficient to ignore this effect in the design procedure of structures. Also, the use of artificial seismic sequences as design earthquake can lead to non-conservative prediction of behavior and damage of structures under real seismic sequences.

• The Journal of Internal Korean Medicine
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• v.21 no.1
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• pp.55-64
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• 2000

Objectives : this project is to find the developmental possibility of medialcohol theraphy Methods : the investigation was made by finding older oriental medicine books about the medialcohol threraphy from QuinHan Dynasty to this current published Results ; in the QinHan Dynasy. the using was so popular and various in the medicine part at the Han Dynasty especially. in the BeiWei dynasty, the making method, experience and principle was very detailed in records. new medialcohol appeared besides the making method, maintenance and development of the medialcohol before the Tang Dynasty. and the taking method was also presented at that time. in the Song Dynasty, the kinds and practical applications were magnified exactly. the treatment by medialcohol was applicated in various parts. in the MingQing Dynasty, so many doctors maintained the elder doctor, experiences and created the new prescription about the medialcohol Conclusions: the effective results were shown the possibility of development in the classification result about the medialcohol for the longevity and invigoration effect and for the antitumor effect and for antistroke effect.

• Advances in pediatric surgery
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• v.9 no.2
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• pp.77-80
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• 2003

Continuous Ambulatory Peritoneal Dialysis (CAPD) has now become an established form of renal replacement therapy in children. Despite of technical improvements, there are various complications in CAPD. We reviewed medical records of children who received CAPD at Seoul National University Children's Hospital in the period between May 1991 and June 2002. Ninety-three procedures of CAPD catheter insertion in 70 patients were included in this study. Complication rate was 64.5%, and CAPD catheter related peritonitis was most common. In conclusion, CAPD catheter related peritonitis develops in considerable number of pediatric patients. Although the peritonitis could be treated with empirical antibiotics therapy, further investigation to prevent complication is required.

• Earthquakes and Structures
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• v.19 no.5
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• pp.379-393
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• 2020

The purpose of this study is to first evaluate the seismic behavior of ageing arch bridges by using the Intensity Measure - based demand and DCFD format, which is referred to as the fragility-hazard format. Then, an investigation is performed for their seismic vulnerability. Analytical models are created for bridges concerning different features and these models are subjected to Incremental Dynamic Analysis (IDA) analysis using a set of 22 earthquake records. The hazard curve and results of IDA analysis are employed to evaluate the return period of exceeding the limit states in the IM-based probabilistic performance-based context. Subsequently, the fragility-hazard format is used to assess factored demand, factored capacity, and the ratio of the factored demand to the factored capacity of the models with respect to different performance objectives. Finally, the vulnerability curves are obtained for the investigated bridges in terms of the loss ratio. The results revealed that decreasing the span length of the unreinforced arch bridges leads to the increase in the return period of exceeding various limit states and factored capacity and decrease in the displacement demand, the probability of failure, the factored demand, as well as the factored demand to factored capacity ratios, loss ratio, and seismic vulnerability. Finally, it is derived that the probability of the need for rehabilitation increases by an increase in the span length of the models.

• Asian-Australasian Journal of Animal Sciences
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• v.17 no.5
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• pp.594-597
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• 2004

A pedigree file of 4,628 records of Muzaffarnagari sheep, maintained at Central Institute for Research on Goats (CIRG), Makhdoom, was used to calculate the inbreeding coefficient of the flock. The flock had been closed for about 25 years (1978 to 2002). The investigation was aimed to study the effects of inbreeding on survivability of lambs. The cumulative survivability of lambs i.e., lambs survived up to 3, 7 and 15 days, 1, 2, 3, 6, 9 and 12 months after birth was considered for the study. The average level of inbreeding of lambs was 1.60%, ranging from 0 to 26.4%. The average inbreeding coefficient of dam over the periods was 1.00% and it ranged from 0 to 25.0%. Significant (p<0.05) adverse effect of lamb's inbreeding was observed on survivability of lambs at all ages except up to 3 and 7 days after birth. On an average, 1% increase in individual inbreeding coefficient should reduce the 0.31, 0.34, 0.32, 0.31, 0.33, 0.44 and 0.49 percent lamb survival up to the age of 15 day and 1, 2, 3, 6, 9 and 12 months, respectively. Ewes inbreeding had non-significant effects on lamb survival at all ages.