女子 大學生의 SPORTS 適應能力에 關한 調査 硏究 : TENNIS의 STROKE 成就度를 中心으로

姜東洹 상명대학교 논문집 1982 상명대학교논문집 Vol.10 No.-

This study is made on the basis of the results derived from the investigation of the student's ability in tennis playing with STROKE used back-board and GROUND STROKE at the court. Seven hundred and fifty-seven girl-students in freshman course of Sang Myong Teacher's College had took part in the investigation from June to July, and from October to November, 1981.

Two New Marine Sponges of the Genus Haliclona (Haplosclerida: Chalinidae) from Korea

강동원,이경진,심정자 한국동물분류학회 2013 Animal Systematics, Evolution and Diversity Vol.29 No.1

Two new marine sponges, Haliclona (Haliclona) tonggumiensis n. sp. and H. (Reniera) sinyeoensis n. sp., in the family Chalinidae were collected from Ulleungdo Island and Gageodo Island, Korea from 2007 to 2009. Haliclona (Haliclona) tonggumiensis n. sp. is similar to H. (H.) simulans (Johnston, 1842) in shape, but the former differs in its ectosomal skeleton structure and spicules’ shape and size. The ectosomal skeleton of H. (H.) tonggumiensis n. sp. is absent, but that of H. (H.) simulans is very regularly arranged, and has tangential reticulation with oxea. The spicule shape of H. (H.) tonggumiensis n. sp. is slender, but that of H. (H.)simulans is short and cigar-shape. The new species have two sizes of oxea, but H. (H.) simulans has one size of oxea. Haliclona (Reniera) sinyeoensis n. sp. resembles H. (R.) tubifera (George and Wilson, 1919) in the growth form and choanosomal skeleton structure. However, the new species has two kinds of oxea in size, but H. (R.) tubifera has only one size.

변증 논치

강동원 로얄에이알씨 주식회사 2010 로얄동물임상의학 Vol.8 No.4

Keystone Error Analysis of Projection Optics in a Maskless Lithography System

강동원,강민욱,한재원 한국정밀공학회 2015 International Journal of Precision Engineering and Vol. No.

In this paper we address keystone error, a significant parameter when diagnosing the misalignment of projection optics in masklesslithography systems. Tilting of either the object or image planes of an optical system results in keystone error. In this experiment, wemeasure the position of a 15×15 beam spot array with an accuracy of 100 nm. We numerically fit the measured position of the beamspot array into a theoretical model to determine the keystone error of the projection optics in a maskless lithography system. Usingthis method, we align the optical system to minimize the keystone error to 0.01% with a 1.5×1.5 mm2 square object. We also analyzethe influence of the keystone error on the stitch error.

Prediction of Energy Consumption According to Physical Activity Intensity in Daily Life using Accelerometer

강동원,탁계래,최진승,이정환 한국정밀공학회 2012 International Journal of Precision Engineering and Vol. No.

This research aims to accurately predict energy consumption according to physical activity intensity in daily life using an accelerometer. To derive a simple but accurate equation for prediction of correlations between acceleration information and energy consumption according to physical activity intensity, the following practices have been undertaken in this research. First, an experiment has been conducted with accelerometers attached at the waist and wrist. Second, 13 motions in daily life with different physical activity intensities were performed. The experiment was conducted on 20 healthy persons using a respiratory gas analyzer for measurement of actual energy consumption. As a predictive model for energy consumption, a multiple regression equation was developed using accelerometer data and physical information about the subjects. For comparison between single accelerometer attached at the waist and two accelerometers attached at the wrist and waist, the correlation between actual energy consumption and accelerometer output for the former was 0.911 and that for the latter was 0.914, which is not significantly different. This result implied that one accelerometer attached at the waist is practically efficient in terms of prediction of energy consumption. As a result of comparison between a single regression equation without motion classification and several regression equations with inclusive motion classification, it was found that several regression equations showed smaller errors (0.64 vs 0.18). Thus for accurate and practical prediction of energy consumption, it is recommended to use several regression equations with inclusive motion classification and single accelerometer attached at the waist.

Two New Species of the Halichondriidae (Demospongiae: Halichondrida) from Korea

강동원,심정자 한국통합생물학회 2008 Animal cells and systems Vol.12 No.1

Two new marine species of the family Halichondriidae,Ciocalypta sasuensis n. sp. and Epipolasis maraensis n.sp., are collected from Chujado Island and Jejudo Island,Korea during 2000-2005. Ciocalypta sasuensis n. sp. isclosely related to C. penicillus (Bowerbank, 1864) in the typeof shape and ectosomal skeleton. However, C. sasuensis n.sp. is larger than Ciocalypta penicillus. Epipolasis maraensisn. sp. is similar to E. suluensis (Wilson, 1925) in the type ofskeleton, but is diferent in size of spicule and growth form.Its oxeas and raphide are smaler than E. suluensis’s. Thegrowth form of this new species is semispherical andmassive, but E. suluensis is lamellated.

Two New Marine Sponges of the Genus Halichondria (Halichondrida: Halichondriidae) from Uljin, Korea

강동원,심정자 한국동물분류학회 2011 Animal Systematics, Evolution and Diversity Vol.27 No.1

Two new marine sponges, Halichondria jangseungenesis n. sp. and H. nagokenesis n. sp., of the family Halichondriidae, were collected from Uljin-gun, Gyeongsangbuk-do, Korea by SCUBA diving during the period from Apr 2007 to Aug 2007. Based on their spicule composition and skeletal structure, H. jangseungenesis n. sp. appears to have a close similarity with H. panicea (Pallas, 1766); however, they differ in length of spicule. The spicule length of oxea of H. jangseungenesis n. sp. is shorter than that of H. panicea. Based on their spicule composition and growth form, H. nagokenesis n. sp. is quite similar to H. cylindrata Tanita and Hoshino,1989; however, but they differ in length of spicule. The spicule length of oxea of H. nagokenesis n. sp. is longer than that of H. cylindrata.

Two New Sponges of the Genus Halichondria (Halichondrida: Halichondriidae) from Korea

강동원,심정자 한국통합생물학회 2008 Animal cells and systems Vol.12 No.1

Two new marine sponges in the family Halichondriidae,Halichondria gageoenesis n. sp. and Halichondria muanensisn. sp. are collected from Gageodo Island and Yongjeong-ri,Hyeongyeong-myeon, Muan-gun, Korea during 2006-2007.H. gageoenesis n. sp. is similar to H. oshoro (Tanita, 1961)in type of spicule, but is diferent from the latter in growthform and size of spicule. The oxea of the new species islarger than H. oshoro H. gageoenesisn. sp. is thick and consists of encrusting with numerouserect hollow cylindrical tubes, but H. oshoro is of massiveform. H. muanensis n. sp is similar to H. retiderma (Dendy,1921) in type of spicule and choanosomal skeleton, but it isdiferent from the later in growth form and size of spicule.The oxea is smaller than that of H. retiderma. The growthhollow cylindrical tubes, compared with the massive loboseof H. retiderma.

A New Record of Genus Higginsia (Poecilosclerida: Desmoxyidae) from Korea

강동원,심정자 한국동물분류학회 2007 Animal Systematics, Evolution and Diversity Vol.23 No.1

A taxonomic study on the marine sponges was conducted with materials which were collected from HongdoIsland, Korea by SCUBA diving in September 2004. Among them, Higginsia mixtaHentschel, 1912 is newlyrecorded in the Korean fauna.

Two Species of Callyspongiidae(Demospongiae: Haplosclerida) from Korea

강동원,심정자 한국동물분류학회 2008 Animal Systematics, Evolution and Diversity Vol.24 No.1

Two marine species of family Callyspongiidae, Callyspongia mookriensisn. sp. and ,were collected from Chujado Island and Jejudo Island, Korea during 2005-2007. Callyspongia mookriensisn.sp. is similar to Callyspongia flabelliformisTanita, 1968 in type of spicule, habitat and growth form butdiffers in spicule and mesh size. The new species has longer oxea and broader mesh than Callyspongiaflabelliformis’s. The overall shape and skeleton of Siphonochalina truncataspecimens described by Lindgren(1897).