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The past, present and future of high-frequency balance testing
Boggs, Daryl W. Techno-Press 2014 Wind and Structures, An International Journal (WAS Vol.18 No.4
Less than 30 years ago a new method was introduced in wind-tunnel testing of tall buildings, known variously as the High-Frequency Base Balance or High-Frequency Force Balance, which revolutionized the determination of design wind loads using model studies. The method is reviewed in hindsight, in the perspective of the present, and with a crystal ball to speculate on future developments. These viewpoints focus on various technical issues that have been solved, are being solved, and need to be solved. The intent is to assist the uninitiated develop appreciation for the technology involved, to identify various pitfalls awaiting those who embark in the method, and to identify areas of need so that practicing design engineers-the users of such studies-can appreciate the limitations and collaborate on future advances while promoting improved communication between executor and user.
The past, present and future of high-frequency balance testing
Daryl W. Boggs 한국풍공학회 2014 한국풍공학회지 Vol.18 No.4
Less than 30 years ago a new method was introduced in wind-tunnel testing of tall buildings, known variously as the High-Frequency Base Balance or High-Frequency Force Balance, which revolutionized the determination of design wind loads using model studies. The method is reviewed in hindsight, in the perspective of the present, and with a crystal ball to speculate on future developments. These viewpoints focus on various technical issues that have been solved, are being solved, and need to be solved. The intent is to assist the uninitiated develop appreciation for the technology involved, to identify various pitfalls awaiting those who embark in the method, and to identify areas of need so that practicing design engineers—the users of such studies—can appreciate the limitations and collaborate on future advances while promoting improved communication between executor and user.
탄성밴드 운동이 경도인지장애 고령여성의 치매척도 및 심혈관계 위험 인자에 미치는 영향
전찬복(Jeon, Chan-Bogg),전익성(Jun, Ig-Sung),김정훈(Kim, Jung-Hun),이한준(Lee, Han-Joon),김경한(Kim, Kyung-Han),한승완(Han, Seung-Wan) 한국체육과학회 2014 한국체육과학회지 Vol.23 No.1
This study aims to examine whether elastic band exercise influences aged women with mild cognitive impairment(MCI) with the dementia-related gene(Apo e4) in terms of their dementia rating, and cardiovascular risk factors. As the subjects of this paper, selected 34 aged women with MCI with Apo e4 among the aged women living in nursing facilities. They are divided into two groups through random assignment. The exercise program is conducted for total 12 weeks, in the intensity of HRR 40 to 60%, 3 times a week, and for 60 minutes a day. As the variables to be measured, their dementia scale are measured, and among the cardiovascular risk factors(TC, TG, HDL-C, LDL-C) are measured. For the data processing, the study employs Two-way ANOVA and analyzed its effects by periods and groups. Regarding the interactive effects, the main effect post-test is performed as paired t-test. About their change in terms of dementia rating and by items, the exercise group gains a higher point in the dementia rating test. And there is significant difference in their orientation of time, linguistic ability, memory storing ability, and linguistic delay and recalling ability. About their cardiovascular risk factors’ change, TG and LDL-C are significantly reduced. In conclusion, the elastic band exercise plays critical roles in aged women with MCI with Apo e4 in terms of their functional fitness, dementia rating, and cardiovascular risk factors. Thus, it is concluded to helpfully play better roles in delaying the speed of their transfer from MCI to Alzheimer’s and also preventing dementia as well.
Ultra Fast Flash Observatory to observe the prompt photons from Gamma Ray Bursts
Jiwoo Nam,Steven Boggs,G. Ripov,Bruce Grossan,Jin-A Jeon,Joo-Young Jin,Ae-Ra Jung,Ji-Eun Kim,Minsoo Kim,Yong-Kweon Kim,P. Klimov,B. Khrenov,Chang-hwan Lee,Jik Lee,Go-Woon Na,Shin-Woo Nam,Il-Heung Park 한국천문학회 2009 天文學會報 Vol.34 No.1
Ultra Fast Flash Observatory to observe the prompt photons from Gamma Ray Bursts
Nam, Ji-Woo,Boggs, Steven,Ripov, G.,Grossan, Bruce,Jeon, Jin-A,Jin, Joo-Young,Jung, Ae-Ra,Kim, Ji-Eun,Kim, Min-Soo,Kim, Yong-Kweon,Klimov, P.,Khrenov, B.,Lee, Chang-Hwan,Lee, Jik,Na, Go-Woon,Nam, Shin 한국우주과학회 2009 한국우주과학회보 Vol.18 No.1
세라밴드 운동이 경도 인지장애(MCI) 고령여성의 기능체력 변화에 영향
한승완(Han, Seung-Wan),전찬복(Jeon, Chan-Bogg) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.3
This study aims to examine the effects of 12weeks elastic band exercise on the functional fitness, dementia scale, and cardiovascular risk factors of aged MCI women. This research selected 34 aged MCI women living in sanatoriums or nursing homes and divided them into two groups of the exercise group and non-exercise group, 17 for each. All the research participants diligently cooperated with the measurement for body composition variables (weight, height, body fat percentage, fat free mass), functional fitness variables (arm curl, chair stand, up-and-Go Test, sit-and-reach, back scratch, 6-minute walking) before and after the experiment. The exercise program was conducted regularly three times a week, 60 minutes per session, and in rating of perceived exertion RPE 11~15 levels and HRR 40-60% intensity for 12 weeks. To process the data gained before and after the 12weeks elastic band exercise program used in this research, SPSS PC Version 18.0 was used. For all the variables gained through experimental treatment among the groups, averages and standard deviations were calculated. The inter-group difference was verified with the design of two-way ANOVA with repetition. When there was interactive effect, for the post-test on the period’s chief effect, paired t-test was performed. The significant level α was .05, and the chief results gained in this study are as described below. Regarding the changes of functional fitness after the 12-week elastic band exercise treatment, there was significant difference in arm curl and chair standing for muscular strength, sit-and-reach and back scratch to the right for flexibility, up-and-Go Test for agility, and 6-minute walking for whole body endurance.
Kim, Soon-Song,Moon, Dae-Yeon,Boggs, Christofer,Koh, Jeong-Rack,An, Doo-Hae The Korean Society of Fisheries and Ocean Technolo 2006 수산해양기술연구 Vol.42 No.4
The circle hook experiments were conducted to compare the catch rates of target and bycatch species between J hook and circle hooks in the tuna longline fishery of the eastern Pacific Ocean between $1^{\circ}48'S-7^{\circ}00'S\;and\;142^{\circ}00'-149^{\circ}13'W$ from July 15 to August 12, 2005. In the target species group no significant differences among 3 types hook, between size 4.0 traditional tuna hooks(J-4) and size 15 circle hooks(C15), and between C15 and size 18 circle hooks(C18) were revealed, but significant differences were found between J-4 and C18. In the bycatch species group significant differences were found among 3 types hook, between J 4 and C15, and between J-4 and C18, but no significant differences were revealed between C15 and C18. Large circle hook(C18) had the lowest catch rate for tunas and for other fishes, and the small circle hook(C15) had lowest rate for billfishes and sharks. The length distributions for bigeye tuna are very similar for the 3 hook types. There were very slight differences in length size between hook types in the bycatch species.
Soon-Song Kim,Dae-Yeon Moon,Christofer Boggs,Jeong-Rack Koh,Doo-Hae An 한국어업기술학회 2006 수산해양기술연구 Vol.42 No.4
The circle hook experiments were conducted to compare the catch rates of target and bycatch species between J hook and circle hooks in the tuna longline fishery of the eastern Pacific Ocean between 1˚48'S-7˚00'S and 142˚00'-149˚13'W from July 15 to August 12, 2005. In the target species group no significant differences among 3 types hook, between size 4.0 traditional tuna hooks(J-4) and size 15 circle hooks(C15), and between C15 and size 18 circle hooks(C18) were revealed, but significant differences were found between J-4 and C18. In the bycatch species group significant differences were found among 3 types hook, between J 4 and C15, and between J-4 and C18, but no significant differences were revealed between C15 and C18. Large circle hook(C18) had the lowest catch rate for tunas and for other fishes, and the small circle hook(C15) had lowest rate for billfishes and sharks. The length distributions for bigeye tuna are very similar for the 3 hook types. There were very slight differences in length size between hook types in the bycatch species.