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BAJA SAE 오프로드용 차량 제작을 위한 최적설계 연구
정인호(Inho Jeong),김현식(Hyun sik Kim),이효걸(Hyogeol Lee),정대근(Daegeun Jung),김동영(Dingyeoung Kim),전진호(Jinho Jeon),박도문(Domoon Park),김민석(Minseok Kim),임석연(Seokyeon Im) 한국자동차공학회 2015 한국자동차공학회 지부 학술대회 논문집 Vol.2015 No.11
Automotive engineering students of Tongmyong University make the vehicle for participating ‘2015 BAJA SAE KOREA at Yeungnam University’. The most important part of our frame design are frame stability and light weight. The proven impact-beam was used to increase the stability of the vehicle structure and to reduce the body light weight. Body frame Made of impact beams can prove stability through the stress-strength analysis. Our SEC-Y we design of vehicles, which was aiming and best-quality vehicles last year, vehicle production also attempted to do. Therefore, Our off-load vehicle ‘TU - Success’ is well coincident with the purpose of ‘2015 BAJA SAE KOREA at Yeungnam University’.
정인호 ( Jeong Inho ) 한국방언학회 2021 방언학 Vol.- No.34
본고에서는 음변화로서의 자음탈락의 유형을 자음약화에 의한 탈락과 자음중복에 의한 탈락으로 분류하여 그 양상을 살펴보았다. 먼저, 자음약화에 의한 탈락은 모음 사이에서 조음체와 조음점 사이의 간극이 점점 벌어지면서 결국 탈락에 이르게 되는 단계변이이다. ‘ㄱ’탈락은 ‘[g](유성폐쇄음)>[ɣ](유성마찰음)>[ɰ](접근음)>∅’의 과정을, 그리고 ‘ㄹ’탈락은 ‘[ɾ](탄설음)>[ɹ̝](마찰음)>[ɹ](접근음)>∅’의 과정을 거친 것이다. 다음으로, 자음중복에 의한 탈락은 인접한 두 자음을 발음하기 위한 조음동작이 점점 겹쳐짐으로써 음향·청각적으로 약한 자음이 결국 탈락에 이르게 되는 단계 변이이다. ‘ㄱ’탈락은 ‘ㅇㄱ’ 연쇄에서 ‘ㅇ’과 ‘ㄱ’의 조음동작이 겹쳐짐으로써 ‘ㅇㄱ>ㅇㅇ>ㅇ’의 과정을 거쳐 ‘ㄱ’이 탈락하는 현상이다. ‘ㄹ’탈락은 폐쇄지속시간이 긴경·격음의 조음동작이 선행하는 음절말 자음 ‘ㄹ’의 조음동작과 겹쳐짐으로써 약한 자음인 ‘ㄹ’이 탈락하는 것이고 ‘ㄴ’탈락은 두 비음의 조음동작이 겹쳐짐으로써 약한 비음인 ‘ㄴ’이 탈락하는 현상이다. In this paper, I classified the types of consonant deletion as a sound change into deletion via lenition and deletion via overlapping, and examined the aspects of deletions. First, consonant deletion via lenition is a Stufenwechsel(=step variation) that consonant leads to deletion as the gap between articulator and point of articulation gradually widens between two vowels. The ‘k [g]’ is deleted through the process of ‘[g] (voiced stop)>[ɣ] (voiced fricative)>[ɰ] (approximant)>∅’, and the ‘l [r]’ is deleted through the process of ‘[ɾ] (tap) >[ɹ̝] (fricative)>[ɹ] (approximant)>∅’. Next, consonant deletion via overlapping is a Stufenwechsel in which the acoustically and auditory weak consonant eventually leads to deletion as the articulatory gestures for pronouncing two adjacent consonants gradually overlap. The ‘k [g]’ is deleted through the process of ‘ŋ-g > ŋ-ŋ >ŋ’ because the articulatory gestures of two consonants overlaps in the sequence of ‘ŋ-g’. The deletion of ‘l ’ is caused by the overlapping of the articulatory gestures of the ejectives or aspirates with the preceding syllable-final consonant ‘l ’. And the deletion of ‘n ’ is caused by the overlapping of the articulatory gestures of the two nasal consonants.