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경구용 항원 수송체 모델로서 폴리락티드 - 글리콜리드 마이크로스피어의 입자도 조절
송일용(Il Yong Song),송세현(Seo Hyun Song),송우헌(Woo Heon Song),조성완(Seong Wan Cho),최영욱(Young Wook Choi) 한국약제학회 1999 Journal of Pharmaceutical Investigation Vol.29 No.4
Poly (lactide-co-glycolide) (PLGA) microspheres containing ovalbumin (OVA) as a model protein drug were prepared by double emulsification method, and various conditions such as mixing rate, volume of outer phase and isopropyl alcohol concentration in outer phase during secondary emulsification were observed to control the size of microspheres. In addition, entrapment efficiency of OVA and protein denaturation were also evaluated. As the rate of stirring was increased, the size of particles was decreased. But excessive stirring increased the particle size of microspheres. In a preparation condition of small volume of outer phase, the particle size was decreased but the entrapment efficiency was increased. Adding isopropyl alcohol to outer phase decreased the size of particles, but increased the entrapment efficiency. Microparticles should have smaller size than 10 ㎛ to be uptaked by Peyer`s patch in small intestine. High speed of mixing and relatively small volume of outer phase are needed to reduce the size. In addition, appropriate amount of isopropyl alcohol in outer phase also plays an important role in size reduction of PLGA microspheres.
송일현 ( Song Ii Hyun ),류재석 ( Ryou Jae Suk ) 한국구조물진단유지관리공학회 2009 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.13 No.1
본 연구에서는 요즘 사회적으로 큰 문제가 되고 있는 건설폐기물 즉, 폐콘크리트에서 발생하는 재 생잔골재를 활용하여 천연잔골재 대비 재생잔골재를 25%씩 증가시켜 고강도 및 높은 유동성올 요구하는 자기충전 콘크리트에 적용하였다. 그 결과 물리적, 역학적 및 내구특성 향상을 위해서는 천연잔골재 대비 재생잔골재를 50% 까지 혼입 가능 하다는 결론을 얻었다. In this study, construction waste had a number of the trouble in the social recently, that is, applied to Self-Consolidating Concrete(SCC) needed for high strength and fluidity by using the recycled fine aggregate from the waste concrete. As a result, this study reached conclusions that the recycled fine aggregate vs the natural fine aggregate could be applied up to admixture ratio of 50% for enhancing the properties of physics, mechanics and durability.
송일상(Il-sang Song) 한국셰익스피어학회 2003 셰익스피어 비평 Vol.39 No.1
Antony and Cleopatra deals with the changing dynamic societies and values of Rome and Egypt through the main characters of Antony and Cleopatra. The need of the lovers for each other is in many ways clearer in Antony's case than Cleopatra's, for his despair at the thought of her infidelity breaks out with greater force. Antony's whole world, together with his sense of personal identity, seems to melt away when he thinks Cleopatra has betrayed him. Antony has staked his entire self-image and his sense of soldier-hero on his love with Cleopatra, and also doubted of her love for him. In warfare Antony always likes to keep his options open and to leave himself something to fall back upon. As a result, he and his soldiers do not fight with all the fury of men feeling their backs against the wall until it is too late. But in his love with Cleopatra, Antony has no place to retreat to if he suffers a defeat. Generally, a man faced with a setback in love can at least try to make up for it by turning to satisfaction in other areas of his life. But Cleopatra has become involved in all aspects of Antony's life, and he certainly cannot look to military victories to console him for defeats relating to sexual love, when his wars have been in the service of his love. When Antony is in love, he at last comes face to face with real necessity and experiences the true need that calls upon the deepest resources of his soul. And Antony can finally learn what it is to feel the heart of loss. In their effort to achieve independence and dominant authority as lovers, Antony and Cleopatra become completely dependent on love itself. Love gradually extends its dominion in their lives until it becomes the sole value for him and an unconditional value. So to speak, Antony relinquishes his martial qualities and pursuits the nature of a lover-hero by embracing a new culture of the Egyptian values. The price paid by the Egyptianized Antony turns to be the total loss of the Roman qualities of vigour and efficiency. Cleopatra also, who represented the chief threat to Roman values, finally gives way to them and to promises to die "after the high Roman fashion". Therefore, no other value can even be compared to love, and nothing could possibly compensate for its loss. In the end Antony and Cleopatra become a lover-hero and are transcended into "new heaven, new earths".
송일상(Il-sang Song) 미래영어영문학회 2016 영어영문학 Vol.21 No.2
Julius Caesar is one of the grandest figures Shakespeare ever represented, and the person of most permanent historical importance. Caesar, as a private person, is a immensely sympathetic character, kind yet dangerous. Of course he is self-centered, and always conscious of being Caesar, perhaps even realizing his deification in advance. In spite of his infirmities including deafness, feeble temper, fever, and falling sickness, he conceals himself in the third person. However, he, as a public person, may idealize himself and is accurate. He is the northern star of his world and his rule partly depends upon his consistency. In other words he consolidates his political position in Rome. He has no natural superior, but his inherent rank has extended itself outward to dictatorship. Caesar is a human being and a mortal god. His genius was to merge Rome into himself, but Brutus vainly tries to merge himself into Rome. But Shakespeare necessarily remains Brutus, since Caesar has wrenched Rome forever. Shakespeare is ironically to suggest that no Roman could tolerate against the spirit of Caesar, and Rome was highly prosperous for Caesarism. In conclusion Julius Caesar is a human being that has a double self-image, a highly excellent mixture of magnificence and weakness.
송일배 ( Il Bae Song ),허권 ( Kweon Heo ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2009 강원 농업생명환경연구 Vol.21 No.-
This survey was carried out to investigate the flora of Mt. Jwabangsan at Chuncheon. Vascular plants surveyed were consisted of 238 taxa, i.e., 174 species, 2 subspecies, 52 varieties, and 10 formae. Korean endemic plants were Eleutherococcus divaricatus var. chiisanensis, Weigela subsessilis, Cirsium setidens, Gymnaster koraiensis, Ajuga spectabilis, Vicia chosenensis, and Aconitum pseudolaeve. Also, the conservatory plants classified from first grade to fifth grade were distributed 39 taxa in the Mt. Jwabang. The naturalized plants found 17 species. Especially, the rare plants were found two species.