국가대표 400 m 허들선수의 기능에 관한 역학적 비교분석

황홍철 한국운동역학회 2001 한국운동역학회지 Vol.11 No.3

The angle of hurdling An angle At the begining part of the game, (take off), Shan has got lower points due to not enough angle of his hip (160.8, 163.3 : 176.3, 175.1) and knee (51.8, 87.8 : 80.4, 79.4) even though he has taller height Shon has bent his body position too much, which reduced his speed of hurdling when attacking, both of two player, Hwang and Shon hadn't made a big difference and had showed pretty much stable body position Hwang hadn't utilized his angle of knee at the fifth hurdle, However Shon had represented a nice angle of hurdling. At the 'Dip Part' Shon had higher angle, which is 13.1. This had connected to the jump movement. It'd be more effective if you bent you waist and decreased dip angle and hip angle to increase the inertia speed. At the part of Touch Down which is the last part of the hurdling process to be combined with the speedy running. The angle of hip and knee is very important. As far as an hip angle, both of the player, Hwang. The body balance As a result of research through two player's the forth and fifth average body center position, compared to Hwang, Shon performed 5.6 degree of an angle at the take off part, attack part 4.7 degree of an angle. and had showed 2 degree lower at the touch down part. At the dip part had recorded higher by 3.1 degree when taking off and attacking that require you to increase you speed, Shon had the lower body center, the reason is Shon had a hard time combining his speed with hurdling and he has a tendency to make a short pause right in front of each hurdle in order to move on to the next jump. At the dip part Shon needed to bend his waist more to decrease the stay in the air time when hurdling, At the touch down part Shon's knee angle has been bent that caused a trouble to move onto the next speedy running position after hurdling part. Shon is required to make up for the week points. The body balance and speed As a result of both players, Hwang and Shon, the average declination result of hurding body center speed, at the take-off part (499.2), attack (422.2) Dip 384.6, touch down 313.4 Shon had showed lower points. Hwang had showed the fastest center speed during take-off part and when attacking, meanwhile Shon did during touch-down part and dip part Hwang has a great ability to combine the fastes speed with hurdling, however Shon has a trouble with connecting speedy running to hurdling and taking advantage of inertia speed. This explains why Hwang has performed a faster hurdling at the beginning part, meanwhile Shon is fater at the last part of the hurdling. Hwnag has a tendency to utilize his speedy running at the beginning part of 400M hurdle (from the first hurdle to the fifth hurdle), but Shon had a habit of not making a difference between the beginning part and the ending part of hurdling, that's why Shon had recorded slower body center speed than that of Hwang. (reference the picture 7.8) Shon needs to increase the speed at the beginning and to train to be strong with staying power at the ending part of the hurdling. As a whole, based on the research on the angle and the speed of Hwang and Shan, Shon didn't apply an angle to the hurdling, meanwhile Hwang takes advantage of inertia speed combined an angle with the speed. Suggestion Based on the research materials of the degreee of an angle of hurdling, the movement from up and down of the body balance and body center speed. These theories should be applied to Shon for him to contribute Korea track field of sports by complementing his good points and week points.

국가대표 400m 허들선수의 기능에 관한 역학적 비교분석

황홍철 公州大學校스포츠科學硏究所 2001 스포츠科學硏究所論文集 Vol.- No.15

Conclusion The angle of hurdling An angle At the begining part of the game, (take off), Shan has got lower points due to not enough angle of his hip (160.8, 163.3 : 176.3, 175.1) and knee (51.8, 87.8 : 80.4, 79.4) even though he has taller height Shon has bent his body position too much, which reduced his speed of hurdling when attacking, both of two player, Hwang and Shon hadn't made a big difference and had showed pretty much stable body position Hwang hadn't utilized his angle of knee at the fifth hurdle, However Shon had represented a nice angle of hurdling. At the 'Dip Part' Shon had higher angle, which is 13.1. This had connected to the jump movement. It'd be more effective if you bent you waist and decreased dip angle and hip angle to increase the inertia speed. At the part of Touch Down which is the last part of the hurdling process to be combined with the speedy running. The angle of hip and knee is very important. As far as an hip angle, both of the player, Hwang and The body balance As a result of research through two player's the forth and fifth average body center position, compared to Hwang, Shon performed 5.6 degree of an angle at the take off part, attack part 4.7 degree of an angle. and had showed 2 degree lower at the touch down part. At the dip part had recorded higher by 3.1 degree when taking off and attacking that require you to increase you speed, Shon had the lower body center, the reason is Shon had a hard time combining his speed with hurdling and he has a tendency to make a short pause right in front of each hurdle in order to move on to the next jump. At the dip part Shon needed to bend his waist more to decrease the stay in the air time when hurdling, At the touch down part Shon's knee angle has been bent that caused a trouble to move onto the next speedy running position after hurdling part. Shon is required to make up for the week points. The body balance and speed As a result of both players, Hwang and Shon, the average declination result of hurding body center speed, at the take-off part (499.2), attack (422.2) Dip 384.6, touch down 313.4 Shon had showed lower points. Hwang had showed the fastest center speed during take-off part and when attacking, meanwhile Shon did during touch-down part and dip part Hwang has a great ability to combine the fastes speed with hurdling, however Shon has a trouble with connecting speedy running to hurdling and taking advantage of inertia speed. This explains why Hwang has performed a faster hurdling at the beginning part, meanwhile Shon is fater at the last part of the hurdling. Hwnag has a tendency to utilize his speedy running at the beginning part of 400M hurdle (from the first hurdle to the fifth hurdle), but Shon had a habit of not making a difference between the beginning part and the ending part of hurdling, that's why Shon had recorded slower body center speed than that of Hwang. (reference the picture 7.8) Shon needs to increase the speed at the beginning and to train to be strong with staying power at the ending part of the hurdling. As a whole, based on the research on the angle and the speed of Hwang and Shon, Shon didn't apply an angle to the hurdling, meanwhile Hwang takes advantage of inertia speed combined an angle with the speed. Suggestion Based on the research materials of the degreee of an angle of hurdling, the movement from up and down of the body balance and body center speed. These theories should be applied to Shon for him to contribute Korea track field of sports by complementing his good points and week points.

고로슬래그시멘트를 사용한 다공성 황토콘크리트의 성능 평가

김황희,강수만,박종식,박상우,전지홍,이진형,차상선,박찬기,Kim, Hwang-Hee,Kang, Su-Man,Park, Jong-Sik,Park, Sang-Woo,Jeon, Ji-Hong,Lee, Jin-Hyung,Cha, Sang-Sun,Park, Chan-Gi 한국농공학회 2010 한국농공학회논문집 Vol.52 No.3

This study aims to evaluate a porous concrete using hwang-toh, blast furnace slag and blast furnace slag (BFS) cement instead of type I cement. The tests that were carried out to analysis the properties of porous hwang-toh BFS cement concrete included compressive strength, continuous void ratio, absorption rate, and pH value, repeated freezing and thawing test were conducted. Test results indicated that the performance in porous hwang-toh concrete are effective on the kaoline based binder materials. The pH value were shown in about 9.5 ~ 8.5. The compressive strength was increased and void ratio was decreased with increasing the kaoline based binder materials, respectively. The void ratio and compressive strength were in the range of about 21 ~ 30 %, 8 ~ 13 MPa, respectively. The increased in void ratio of more than 25 % is showed to reduce the resistance of repeated freezing and thawing. Also, the resistance of repeated freezing of thawing and the compressive strength of porous hwang-toh BFS cement concrete are independent with hwang-toh content and BFS cement amount. But, the void ratio was decreased with increasing the high volume hwang-toh contents (more than 15 %).

섬유보강 다공성 옥상녹화 황토콘크리트의 물리·역학적 및 온도변화 특성 평가

오리온,김춘수,김황희,전지홍,권완식,박찬기,Oh, Ri On,Kim, Chun Soo,Kim, Hwang Hee,Jeon, Ji Hong,Kwon, Wan Sig,Park, Chan Gi 한국농공학회 2013 한국농공학회논문집 Vol.55 No.4

The physical, mechanical, water purification and temperature properties of fiber reinforced porous hwang-toh green roof concrete have been evaluated in this study. The effect of the depending on replacement ratio of blast furnace slag to cement was investigated such that the replacement ratio is varied to 0 % and 30 %. Also, the replacement ratios of hwang-toh were 0, 20 and 30 %. The polyvinyl alcohol fiber was used for the reinforcing fiber. A series of pH test, unit weight, void ratio, compressive strength, after purification and variation of temperature test have been performed to evaluate the performance, water purification effect and temperature properties of the fiber reinforced porous hwang-toh green roof concrete. The test results indicate that the physical and mechanical properties of fiber reinforced porous hwang-toh green roof concrete is affected by the replacement ratio of the blast furnace slag and hwang-toh contents. Results of purifying water showed that the water purification effect of porous hwang-toh green roof concrete is about 40 %. Also, the temperature properties test results indicate the green roof blocks using fiber reinforced porous hwang-toh green roof concrete have insulation and temperature reduction effect.

Iconicity in English Lexical Category Phrases and Sentential Complementation from a Generative Perspective

Kyu-Hong Hwang(황규홍) 한국생성문법학회 2006 생성문법연구 Vol.16 No.3

  The generative view of autonomy of syntax has been criticized by most cognitive-functional grammarians and claimed to be incompatible with or unable to account for iconicity that exits in natural human languages. Given this, this paper attempts to explain some iconic aspects in English syntax from a generative perspective in an effort to argue against this cognitive-functional criticism. After examining "structure-concept iconicity" in lexical category phrases and sentential complementation in Newmeyer"s (1992, 1998) sense, I propose the following generative principles of iconicity, embellishing Hwang"s (2005) idea: (ⅰ) when a head is modified by multiple adjuncts, the fewer maximal projections of the head there are between the head and the adjunct, the closer the semantic relation between them is; (ⅱ) when a verb takes minimal pair/set clausal complements, the fewer and morphologically poorer functional heads(C and T) there are between the matrix verb and its clausal complement, the closer the semantic relation between them is. I then claim that Haiman"s (1983, 1985, 1994)"s iconicity of distance, a sub-principle of structure-concept iconicity, is compatible with generative grammar, to a large extent, in that it is well represented structurally in generative grammar outlined in Chomsky (1995, 2001, 2005): the semantically closer the two syntactic objects are, the more local their syntactic relation is in the light of hierarchical structure.

비소성 무기결합재를 사용한 무시멘트 다공성 식생콘크리트의 물리·역학적 특성 및 동결융해저항성 평가

김황희,김춘수,전지홍,박찬기,Kim, Hwang Hee,Kim, Chun Soo,Jeon, Ji Hong,Park, Chan Gi 한국농공학회 2014 한국농공학회논문집 Vol.56 No.5

The physical, mechanical and freezing and thawing properties of non cement porous vegetation concrete using non-sintering inorganic binder have been evaluated in this study. Four types of porous vegetation concrete according to the binder type is evaluated. The pH value, void ratio, compressive strength, repeated freezing and thawing properties were tested. The test results indicate that the physical, mechanical and repeated freezing and thawing properties of porous vegetation concrete using the non-sintering inorganic binder is increased or equivalent compared to the porous vegetation concrete using the blast furnace slag + cement and hwang-toh + cement binders. Also, Vegetation monitoring test results indicate the porous vegetation concrete using the non-sintering inorganic binder have increasing effects of vegetation growth.

반응표면 분석법을 이용한 천연마섬유보강 순환굵은골재 콘크리트의 성능 평가

전지홍,김황희,김춘수,유성열,박찬기,Jeon, Ji Hong,Kim, Hwang Hee,Kim, Chun Soo,Yoo, Sung Yeol,Park, Chan Gi 한국농공학회 2014 한국농공학회논문집 Vol.56 No.4

In this study, evaluated ware the strength and durability of the vegetated water purification channel concrete to which recycled aggregates, hawang-toh and jute were applied. Box-Behnken method of response surface analysis in statistics was applied to the experimental design. Experimental variables are as follows, recycled coarse aggregates, hawang-toh, blast-furnace slag and jute fiber. In the experiment, conducted were the tests of compressive strength, chloride ion penetration, abrasion resistance and impact resistance the replacement rate effects of the recycled aggregates, blast-furnace slag and hwang-toh on the performance of vegetated water purification channel concrete were analyzed by using the response surface analysis method on the basis of the experimental results. In addition, an optimum mixing ratio of vegetated water purification channel concrete was determined by using the experimental results. The optimum mixing ratio was determined to be in 10.0% recycled coarse aggregates, 60.0% blast-furnace slag, 10.1% hwang-toh and 0.16% jute fiber. The compressive strength, chloride ion penetration, abrasion rate, and impact number of fracture test results of the optimum mixing ratio were 24.1 MPa, 999 coulombs, 10.30 g/mm3, and 20 number, respectively.

해상 유류 유출 사고 후, 유류 해양 오염에 따른 주요 해산 어ㆍ패류내 PAHs 추적

황인영,박정규,박관하,김정상,정흥배,배철한 한국환경독성학회 2001 환경독성보건학회지 Vol.16 No.2

Marine organisms such as fish (Sebastes schlegeli) and mussels were cultured in sea water tanks placed at Dukpo area which was contaminated by the two oil spill accidents. Results showed that PAHs concentrations in fish tissue were higher than in fish liver. This was explained by the cytochrome P450 IA induction in fish liver after PAHs exposure. Other studies showed that higher PAHs levels were detected in mussels cultures in oil contaminated area than in control site. From these results, we concluded that Dukpo area is still polluted by oil including PAHs and it takes a long time to recover of oil contamination after the oil spill accidents.

학교 도서관을 활용한 초등 사회과 좋은 수업방안 탐색

황홍섭 경북대학교 사회과학대학 지리학과 2003 地理學論究 Vol.- No.23

학교도서관은 지식ㆍ정보 인프라의 핵심기관으로 등장하고 있다. 아울러 학교도서관에 소장된 각종 다양한 콘텐츠에 접근하여 교육적으로 활용할 필요성이 증대되고 있다. 본 논문은 학교 도서관을 활용하여 초등 사회과 좋은 수업을 할 수 있는 방안을 탐색해 보는데 그 목적이 있다. 이를 위해 먼저 왜 도서관활용이 필요하며, 그 종류와 역할을 알아본다. 둘째, 좋은 수업이란 무엇이며, 어떤 특성이 있는지를 파악한다. 셋째, 학습자 중심의 좋은 수업을 위해 학습양식이란 무엇이며, 학습 양식의 유형과 측정도구를 알아본다. 넷째, 학교도서관을 활용하여 좋을 수업을 하기 위해 학교도서 관활용 수업모형과 학교도서관을 활용한 사회과 수업자료를 개발한다. 그리고 학습양식 및 다중지능이론에 기초한 도서관활용 좋은 수업방안을 탐색해 본다. Todays, school library appears as infrastructure of knowledge-information. we need increasingly to apply it. Thus, the purpose of this aim is exploring the best instruction through applying it in elementary social studies. In order to achieve research aim, I sought as follows : firstly, why does the application of school library need? and what is kinds and function of it. secondly, what is the best instruction? what is characteristics of it. thirdly, what is learning style? and what is types and measurement of it. fourthly, what is library-assisted instruction model and I examined the data which can be library-assisted instruction. finally, exploring the best practice of library-assisted instruction including teaming style and multiple intelligence theory

초등 사회과 현장학습 실태분석

황홍섭,이상례 부산교육대학교 교육대학원 2001 논문집 Vol.3 No.-

The purpose of this study is to analyze a actual state of field-learning in elementary socal studies. Research was performed with teachers and students of the 4th grade who were divided by ward office. The recovery rate for teachers was 82% (41 of 50 teachers returned the questionnaire). The recovery rate for the students was 70.4% (317 of 450 students returned the questionnaire). The result of the analysis of the actual conditions of field-learning is the following : 1) Most of the teachers(92.7%) and students(83.9%) are aware that they need field-learning, but actual school conditions make them difficult owing to the lack of principals' and parents' awareness, lack of programs, problems of transportation, costs, and lack of cooperation among teachers. 2) Field-learning is usually performed by grade(75.6%), but teachers should have discretionary authority to carry out the field-learning by class, thus ensuring field-learning diversity, promptness, and seriousness. 3) Through this study, it was discovered that teachers are not aware of the importance of preliminary studies, and prepare only simple materials and a simple teaching plan before the field-learning. In addition, they avoid field-learnings because of the difficulties of preparing effective teaching materials. When they make teaching materials for the trip, they usually do it with students and use internet(39%) a little more than the text or guidance book(34.1%). 4) Teachers select the region for field-learning according to the curriculum(90.2%). Thus, we know that most teachers follow the curriculum closely. 5) According to this analysis of the actual conditions of regional field-learning, there is little difference in the needs of field-learning, the reason, frequency, or the methods. There is, however, some differences in preliminary studies, the method of study after the field-learning, and the experiences during the field-learning. It is reported students living in Eastern Busan city, experience more direct field-learning and make use of the Internet more than students of other wards. 6) The number of students that haven't experienced a variety of field-learnings is high, and they are in need of an organised program for field-learning. The field-learning that they experience is the following: cyber field-learning(25.6%), indirect field-learning(15.1%), role play(7.6%). It is suggested that direct field-learning is the best way of studying Busan and using the Internet is second. In conclusion, we should improve educational conditions for liberal field-learning. Teachers should be able to use discretionary time and special activity time freely, according to the 7th curriculum. But there should be approval from the principal before field-learning is conducted by class. Most importantly, teachers must have concern and desire for the field-learning. the main problem for teachers with regard to field-learning is the lack of programs for it. We need to develop organised programs.