• Smart Structures and Systems
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• v.21 no.1
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• pp.99-111
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• 2018

Wind induced large bending oscillation amplitudes in tall and slender telecommunication steel towers may lead to precocious fatigue cracks and consequent risk of collapse of these structures, many of them installed in rural areas alongside highways and in highly populated urban areas. Varying stress amplitudes at hot spots may be attenuated by means of passive control mechanical devices installed in the tower. This paper gives an account of both mathematical-numerical model and the technique applied to design and evaluate the performance of a double controller installed in existing towers which is composed by a nonlinear pendulum and a novel type of passive controller described herein as a planar motion disk mounted on shear springs. Results of experimental measurements carried out on two slender tubular steel towers under wind action demonstrate the efficiency of the double controllers in attenuating the towers bending oscillation amplitudes and consequent stress amplitudes extending the towers fatigue life.

• Asian-Australasian Journal of Animal Sciences
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• v.12 no.8
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• pp.1177-1180
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• 1999

This study describes the growth of broiler chickens to the two forms of Gompertz function for application in broiler production models. The first form is based on the estimated mature weight ($W_A$), while the second is based on the estimated hatch weight ($W_O$). Both equations gave identical estimation because they are mathematically identical. To fit the growth curve of commercial broilers that marketed at 35-42 days, it is unnecessary to keep broilers to near maturity (> day 140) to obtain growth data for deriving the Gompertz function. This date does not improve the curve fitting of the early growing period. Additionally, a high mortality and health problem occurred to this type of chicken after day 105.

• Mycobiology
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• v.38 no.4
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• pp.282-285
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• 2010

Cordyceps cardinalis successfully produced its fruiting bodies from multi-ascospore isolates. However, subcultures of multiascospore isolates could not produce fruiting bodies after few generations. Fruiting body production also differed from sector to sector of the same isolate. Single ascospore isolates were then co-inoculated in combinations of two to observe the fruiting characteristics. Combinations of certain isolates produced perithecial stromata formation, whereas other combinations did not produce any fruiting bodies. These results show that C. cardinalis is a heterothallic fungus, requiring two isolates of opposite mating types for fruiting body production. It was also shown that single ascospore isolates are hermaphrodites.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 1991.09a
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• pp.29-40
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• 1991

The purpose of this study is invested, recorded about traditional dwelling space, and there is to find out possibilites on the context of the inheritance of traditional life through analzing about life content and space. The results of this study are as follows: 1) Kwang Duk vililage is the typical traditional town where the confucian view of life still affects on overall housing life. 2) The pattern of layout is mainly 'ㅡ' and 'ㄱ' shaped type. In the plane and structural form, the original form is, though some parts have changed, maintained. 3) According to the analysis of transformation state of dwelling space, the category of transformation is summerized as follow ; changes of room function, increase and decrease of annex, and room size by changes of family structure, life style, farming operation style.

• Proceedings of the Korean Geotechical Society Conference
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• 2010.03a
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• pp.1094-1103
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• 2010

The safety of pile foundation is getting declined when the pile foundation acting on lateral load is exposed by dredging. So appropriate reinforcement is needed for stability secure. Thus, in this study, the stability variation and reinforcement range caused by dredging is estimated on the basis of down scale test. The scale effect is determined by real scale numerical analysis. the behavior of pile by dredging stages is estimated by load control type. The credibility is verified through the comparison between down scale model test and numerical analysis.

• Korean Journal of Pharmacognosy
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• v.33 no.4 s.131
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• pp.332-336
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• 2002

Opuntia ficus-indica var. sabotan was administered with diet for 5 weeks on db/db diabetic mice and its antidiabetic activity was investigated. Leaves of Opuntia ficus-indica var. sabotan inhibited the increase of body weight, glucose elevation in blood and urine, and protein excretion in urine, and protein excretion in urine. Opuntia ficus-indica var. sabotan also inhibited the intestinal maltase and sucrase activity on db/db Mice loaded with maltose and sucrose. However, it did not significantly lower HbAlc in blood of db/db mice. These results suggest that leaves of Opuntia ficus-indica var. sabotan could be effective on insulin-independent diabetic mellitus type 2.

• Korean journal of applied entomology
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• v.20 no.1 s.46
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• pp.43-50
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• 1981

In Korea, only one species of genus Promalactis has been reported to date. This study was carried out to revise Korean species of tile genus Promalactis. From the result of it, four species are reported for the first time. The species are Promalactis jezonica, P. suzukiella, P. enopisema, P. autoclina.

• Journal of the Korean Society of Clothing and Textiles
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• v.35 no.5
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• pp.513-526
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• 2011

This study investigates the factors of LOHAS (Lifestyles of Health and Sustainability), to segment consumer groups by LOHAS and identify the differences of LOHAS groups in the purchase of LOHAS fashion products. A total of 398 people aged from 20s to 50s were surveyed in September, 2009. The data were analyzed with factorial analysis, ANOVA, LSD, Chi-square, Cronbach' ${\alpha}$, using the SPSS 12.0. The survey showed: 1) Seven LOHAS factors (environment preservation, family centered, pursuit of rural life, preference of environmentally friendly products, interest in health, pursuit of leisurely life, and soul & body balance), 2) LOHAS consumers were classified into five segments (health interest, well-being, LOHAS, unconcerned, and naturalist). The distribution of age level, education level, and the type of job were different among LOHAS groups; and 3) Experiences of purchasing LOHAS AS fashion products in the past and intention to purchase LOHAS fashion products in the future were different among LOHAS groups.

• Journal of Forest and Environmental Science
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• v.24 no.3
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• pp.171-174
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• 2008

The increasing price of liquefied petroleum gas (LPG) has forced many households to shift to firewood/charcoal in the Philippines, causing tremendous pressure on the dwindling forest. This transition is more obvious in the rural area where firewood price is almost half of that in the cities. Both problems on big demand for firewood and the pressure on our forest can be partly solved by going into firewood plantation. After all, the country has vast track of idle lands, both private and government lands, waiting to be developed. What the government can do are: a) aggressive promotion of firewood plantation, b) simplify further the old technology on establishing firewood plantation to encourage more farmers, c) improve charcoal processing and d) promote the use of efficient stoves. This write up discusses the need for firewood plantation, areas available for planting, where to plant in farms, what species to plant in a particular soil type/location for optimum growth, planting methods, harvesting, marketing, and the side lights on the ecological benefits derived from plantation aside from wood.

• Journal of Nutrition and Health
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• v.22 no.2
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• pp.70-83
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• 1989

A nutrition survey of 209 children, 6 to 13 years old, in the namgok elemetnary school at Namsamyun, Yongin-gun, Kyonggi province, was undertaken in July of 1987, to investigate dietary and nutritional status. Mean value of hight was 98% of the Korean standard established by the Korean Standards Research Institute. However, in these terms, 7.7% of the subjects were proven to be short, mean value of weight was 94.5 of the Korean standard. However, in these terms, 9.3% of the subjects were proven to be moderatly underweight ; whereas 10.4% of the subjects were proven to be over weight. By the WHO criterion, 18.4% of the subjects showed lower figures of hemoglobin than anemic level of 12gm%/이. Mean urinary urea nitogen/creatinine ratio was 9.1$\pm$5.0 Carbohyudrate provided 68% of total energy intake ; protein accunted for 13% ; fat provided 19%. Energy intake was divided among breakfast, lunch, dinner and snacks in a percentage ratio of 22 : 44 : 24 : 13. The survey clarified that the elementary school feeding largely supplemented the inadequate intake of these chidren at home.