콘크리트 보의 應力擴大係數 K1의 決定

宋錠根 順天大學校 1986 論文集 Vol.5 No.1

3點 및 4點휨 實驗을 통하여 試片의 龜裂長, 破壤荷重과 有效破壤靭性(Effective Fracture toughness)등을 검토한 結果 다음과 같은 사실을 알 수 있었다. 1. 應力擴大係數 ?? 는 配合設計의 영향을 받지 않았으며. 2. 보의 치수를 달리한 경우에도 應力擴大係數는 變化가 거의 없었고, 3. 一般的으로 應力擴大係數는 龜裂長를 키우면 다소 증가함을 보여주었다. Fracture Mechanics concepts have been applied with varing degress to the problem of cracking and fracture in concrete for many years. Whether rules bassed on frature mechanics or classical mechanics should be used as basic for design and analysis depends on the notch sensitivity as well as the fracture toughness of concrete meterial. Therefore information about these characterisitcs of concrete is important. Experiments were undertaken to investigate stress intensity factor ?? of concrete beam with different loadings, sizes and mix design. The investigation, which was carried out on small flexural specimens with pre-cracked notch, indicates that the trend of stress-intensity values is to increse slightly with incresing crack length.

高强度콘크리트의 壓縮應力블록에 관한 硏究

宋錠根 순천대학교 공업기술연구소 1990 工業技術硏究所論文集 Vol.4 No.-

Current ultimate strength design practice is based on experimental information obtained from concrete with compressive strength in the range of 3,000 to 6,000 psi. For developing a satisfactory design equation for flexural member with higher strength concrete, validation or modification of existing ultimate strength properties of stress block may be necessary. In this paper, experimental data on high strength concrete obtained by other investigator^1.2) are reported. Based these data, the author have proposed emperical expressions.

미국흰불나방(Hyphantria cunea D.)의 저장단밴질-1과 저장단백질-2에 대한 비교 분석

송정근,김학렬 한국통합생물학회 1995 한국동물학회 뉴스레터 Vol.12 No.2

유기박막 트랜지스터의 기술 동향

송정근 한국고분자학회 2003 고분자 과학과 기술 Vol.14 No.1

안장 색전증을 유발한 좌심방 점액종 -수술 치험 1례-

송정근 대한흉부심장혈관외과학회 1995 Journal of Chest Surgery (J Chest Surg) Vol.28 No.3

Systemic emboli occur in approximately one-third of patients with cardiac myxoma. Embolization is common because of the friability of the tumor and intracardiac location. Embolic episodes in young patients with normal sinus rhythm should arouse suspicions of cardiac myxoma in the absence of active endocarditis. We present one case of 17 years old girl having saddle embolism combined with left atrial myxoma. We planned staged operation. First, the emergency thromboembolectomy of aortic bifurcation was performed through bilateral transfemoral approach with use of Forgaty catheter. One week later, the extirpation of myxoma was successfully done with ECC.

학교문법의 문법 단위 분석

송정근 어문연구학회 2018 어문연구 Vol.98 No.-

This paper deals with some problems related to the analysis of morphemes, words, and sentences among the grammatical units of school grammar. Grammar research is basically a discipline that deals with the classification and systems of grammatical units, so it is reasonable to teach the results and systems of such classifications in school grammar. But this papers insists that We should pay more attention to the analysis of the individual grammar units rather than the simple end result. First, in terms of morphological analysis, the present tense in Korean is expressed as '-는- ~ -ㄴ-' or 'Ø' according to the honorific system, so both of these forms should be presented. It is also necessary to introduce both of these forms to induce students' attention to the historical changes of a final ending in Korean. Second, in the word analysis, rather than educating only the result classification system that the word can be classified into a single word, a compound word, a derivative word, a compound word, the practice of analyzing a word and a hierarchical structure is more necessary. In addition, it is difficult to explain new words such as Blends and acronyms, which are formed by combining syllables cut arbitrarily in words or syntactic structures, by synthesis or derivation, which is a conventional word formation framework. Therefore, it is a more important task to understand the words by practicing the various methods related to word formation and analyzing the words directly. Finally, analysis of sentence components in sentence analysis has important meaning in that it captures the relationship of constituents of sentence. In relation to the setting of a subject or a predicate, it is also useful for the students to learn the sentence composition by explicitly designating subject or predicate in the adnominal clause or noun clause in the school grammar education. 본고는 학교문법의 문법 단위 가운데 형태소, 단어, 문장 분석과 관련된 몇 가지 문제에 대해 다루었다. 문법 연구는 기본적으로 문법 단위의 분류와 체계를 다루는 학문이므로 학교문법에서 그러한 분류의 결과와 체계를 가르치는 것은 당연하다고 본다. 그러나 그 과정에서 단순한 최종 결과가 아닌 개별 문법 단위에 대한 분석 과정이나 분석 방법에 대한 교육에 보다 신경을 써야 한다는 것이 본고의 핵심적인 주장이다. 먼저 형태 분석과 관련하여 우리말 현재 시제를 나타내는 선어말어미는 상대 높임법 체계에 따라 ‘-는- ~ -ㄴ-’ 또는 ‘Ø’으로 나타나므로 이 두 형태가 모두 제시되어야 함에도 현행 교과서들은 그렇게 하지 않은 문제가 있다. 이 두 형태를 모두 소개하여 학생들로 하여금 통시적인 종결어미의 발달에 관한 관심을 유도하는 것도 필요할 것이다. 동사의 관형사형 어미 ‘-던-’, ‘-는’ 등에서 시제 선어말어미 분석 역시 필요한데, 이러한 분석이 중세국어의 시제를 그대로 반영하고 있다는 점에 교육적 의미가 있다고 할 수 있다. 다음으로 단어 분석에서는 단어를 단일어, 복합어, 파생어, 합성어 등으로 구분할 수 있다는 결과적 분류 체계만을 교육하기보다는 단어를 직접구성요소 분석하여 계층적 구조를 파악하는 연습이 오히려 더욱 필요하다고 하겠다. 또한 단어나 통사적 구성에서 임의로 절단된 음절이 결합하여 형성되는 혼성어, 두자어 등의 신어들은 기존의 단어형성 틀인 합성이나 파생으로 설명하기 어렵다. 따라서 단어형성과 관련된 다양한 방식들을 알려주고 단어를 직접 분석해보는 연습이 단어를 이해하는 더 중요한 과제이다. 마지막으로 문장 분석 가운데 문장성분 분석은 문장의 구성성분들의 관계를 포착해 준다는 점에서 중요한 의미를 갖는다. 그런데 관형어와 같은 문장성분은 후행하는 단어 즉 명사를 수식한다는 점에서 문장성분과 품사와의 관계가 서로 무관하지 않음을 설명해 줄 필요가 있다. 관형어는 수식하는 명사의 기능에 따라 통사적 지위가 달라질 수 있다는 점에서 독자적 성분으로 보기 어려운 측면이 있다. 주어나 서술어의 설정과 관련해서도 관형사절이나 명사절 내부에 있는 주어나 서술어도 구체적으로 학교문법 교육에서 명시하여 표시하는 것이 학생들이 문장성분을 학습하는 데 유용할 것이다.

『형태론』 17권 2호의 기고에 대한 논평(1)

송정근 형태론 2016 형태론 Vol.18 No.2

직접봉합으로 치료한 단독 이차공 심방중격결손증 156례 보고

송정근 대한흉부심장혈관외과학회 1995 Journal of Chest Surgery (J Chest Surg) Vol.28 No.4

Secundum atrial septal defect occupies about 10 to 15% of congenital heart diseases, and the surgical accomplishment is outstanding, so that the operative mortality is getting near to zero percent. But, the methods of correction, direct closure versus patch closure are still controversial and there is no absolute method about it. Some surgeons prefer direct closure technique for its simplicity and lesser thrombogenicity but others, afraid of arrhythmia and suture detachment after closure of large defect, prefer patch closure. Usually most surgeons use direct suture technique in small and moderate sized defects and patch closure in large defects. In our hospital, 156 cases of isolated secundum atrial septal defect were closed directly by double continuous over and over suture using 5-0 polypropylene[prolene , regardless their sizes and the amounts of shunt flow. There were no operative mortality and no serious complications such as heart block, suture detachment and embolism.

鐵筋콘크리트 뼈대 構造物의 隅角部 應力解析에 관한 實驗的 硏究

宋錠根 順天大學校 1983 論文集 Vol.2 No.1

In simple structural members, such as columns and beams, the principal location of Reinforcement are obvious. In other hand, both analyzing stress state and deciding the position of arrangement are not obvious for coners in frame structures. Therefore, experimental work has been conducted to study the distributed state of stress in coner by optical method.

구체명사와 결합하는 ‘하다’의 의미 특성에 대하여

송정근 한국어의미학회 2007 한국어 의미학 Vol.22 No.-

Song Jung-keun. 2007. The Semantic Characteristics of 'ha(ta)' Combined with Substantival Nouns. Korean Semantics, 22. The purpose of this study is to research the semantic characteristics of 'ha(ta)' combined with substantival nouns, which is very different from 'ha(ta)' with predicate nominals. A former assumptions on 'ha(ta)' with substantival nouns is that it is a pro-verb or generic verb or light verb based on the various semantic functions of 'ha(ta). But in this study 'ha(ta)' with substantive nouns is divided into largely two classes. One is the class that the meaning of 'ha(ta)' is decided by the context. And the other class is that the meaning of 'Substantive noun-ha(ta)' construction is idiomatic. The former is not a issue in semantics but in pragmatics and only the latter are connected with semantics. The idiomatic 'substantive noun-ha(ta)' constructions have the predictability of context and the similarity with collocation in that noun play the important role deciding the meaning of the noun-verb combination. 'ha(ta)' in the idiomatic 'substantive noun-ha(ta)' construction is sometimes used not idiomatic meaning but contextual meaning. It shows that the idiomatic usage of 'ha(ta)' originated from the context-dependent usage of 'ha(ta)'