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      • KCI등재

        La evolución poética de Pablo Neruda y el surrealismo

        Bahk, Juan-W 서울대학교 스페인중남미연구소 2005 이베로아메리카硏究 Vol.16 No.-

        A través del análisis de varios poemas de Residencia en la tierra, La evolución poética de Pablo Neruda y el surrealismo no sólo se ha procurado seguir la gestación de la poesía surrealista del poeta sino que también se ha tratado de verificar la existencia de las características surrealistas en sus obras. Su autor ha querido también mostrar los discursos poéticos provenientes de la nueva poética naciente en España de aquel entonces, ya que por la amistad que tenía con los poetas del grupo poético del 27, Neruda estaba al tanto del cambio de la flamante poesía. Otro aspecto del que no podemos prescindir es que Neruda a los 15 años era conocedor del idioma francés y por ello leía las obras de Apollinaire, Rimbaud y Baudelaire; o sea, Neruda seguía teniendo contacto con los grandes precursores franceses cuyas contribuciones aportaron al nacimiento de la poesía vanguardista del siglo XX. Este estudio es un proceso ininterrumpido de la evolución poética de Pablo Neruda. Todo lo que tenía en su fondo personal, desde su origen humilde como el hijo de un ganadero y ferroviario hasta su carrera política como senador de Chile y cónsul en varios países de cuatro continentes, llega a cuajar muy bien con la constante evolución de su poética. Este trabajo ha trazado el trayecto de Neruda desde su inicio hasta Residencia en la tierra con el objetivo de que entendamos mejor su poesía surrealista.

      • SCOPUSKCI등재

        Depiction of Nidi and Fibrovascular Zones of Osteoid Osteomas Using Gamma-Correction Tc-99m HDP Pinhole Bone Scan and Conventional Radiograph, and Correlation with CT, MRI, and PVC Phantom Imaging

        Bahk, Yong-Whee,Kim, Sung-Hoon,Chung, Yong-An,Bahk, Won-Jong,Park, Jung-Mee,Kang, You-Mee,Choi, Woo-Hee,Park, Young-Ha,Sohn, Hyung-Sun,Kim, Byung-Ki,Chung, Soo-Kyo The Korea Society of Nuclear Medicine 2011 핵의학 분자영상 Vol.45 No.1

        Purpose For the precise imaging diagnosis of osteoid osteoma (OO), the identification of the nidus and fibrovascular zone (FVZ) is essential. However, the latter sign has received little attention because it is difficult to demonstrate. We applied the recently introduced gamma correction (GC) to depict the FVZ on pinhole bone scan (PBS), conventional radiography (CR), and computed tomography (CT). Nongamma correction MRI was also analyzed for reference. Methods Ten patients with histologically proven diagnoses of OO were enrolled in this retrospective study. PBS, CR, and CTwere processed by GC to demonstrate the nidi and FVZ as distinct yet integrating components of OO. PBS was performed using a 4-mm pinhole collimator 3 h after iv injection of 925 to 1,110MBq (25 to 30mCi) of Tc-99mHDP, and anteroposterior and mediolateral CR and transverse CT were taken according to the standard technique. MRI sequences included T1- and T2-weighted images. For gamma correction, we utilized the Photo Correction Wizard program of ACD Photo Editor v3.1. A team of three qualified nuclear physician-radiologists, two nuclear physicians, and one MRI specialist read bone scans, radiographs, and MRIs of OO according to each specialty, and orthopaedic aspects and histology were reviewed by one qualified orthopedic surgeon and two qualified pathologists, respectively. Each observer first read the images separately with basic information about the aim of the study given and then in concert. Interpretive disagreement was settled by discussion and consensus. Results On pinhole scan, nidi were presented as areas of intense tracer uptake in all cases, and, importantly after GC, a thin ring-like zone with lower tracer uptake became visible in seven out of ten cases. GCCR also revealed a thin lucent zone that circumscribed the nidi in six out of ten cases and GCCT in two of four cases.MRI, without GC, presented nidi with high signal in the center and a thin ring-like zone with low signal in the periphery in five out of six cases. Ring-like zones were 1-2 mm in thickness and circumscribed the nidus as an integrated part and, hence, were morphologically interpreted as FVZ. Histologically, the presence of a variously mineralized FVZ was confirmed in four cases, but individual locusby- locus image-histology correlation could not be accompolished because specimens were fragmentary. In the FVZ, tracer uptake was lower than in nidi, presumably reflecting that bone metabolism in the two parts differs as in their histology. Statistically, no significant correlation existed between the duration of symptoms and imaging demonstrability of the FVZ (Spearman's test r=-0.057, p=0.877), but parallelism existed in the demonstrability of the FVZ among GC PBS, CR, and CT, and non-correction MRI. Conclusions GC was useful to enhance the resolution of PBS, CR, and CT in OO so that both the nidi and FVZ were separately imaged. The use of CG PBS and CR in combination is recommended for the specific diagnosis of OO with information about bone metabolism and anatomical characteristics. PBS and CR are economical and widely available.

      • A Study on Metal Network Formation

        Bahk, Sae-Mahn,Cha, Kyung-Ok,Park, Myung-Kyun 明知大學校 産業技術硏究所 1993 産業技術硏究所論文集 Vol.12 No.-

        종래에 사용된 Autoclave나 Flame-Metallizing 방법으로서는 용이하지 않았던 Metal Deposition을 Electrochemical Process를 사용하여 Al, Cu, Mo, Ni, Brass와 Stainless Steel를 Metal Network Structure를 구성하는 데 이용하였고, 또 구성된 Network를 열처리하여서 구성된 Structure Stablizing 하는데 필요한 조건을 제시하였다.

      • A Study on Surface Excess and Surface Tension of Molten Lead Alloys

        Bahk, Sae-Mahn,Cha, Kyung-Ok,Park, Myung-Kyun 明知大學校 産業技術硏究所 1993 産業技術硏究所論文集 Vol.12 No.-

        Maximum Bubble Method를 사용하여서 5가지 종류의 Lead-Arsenic Alloy의 표면장력을 여러가지 온도에 따라서 측정하였다. Arsenic은 용융상태의 Lead에서는 界面活性의 特性이 있고, 극히 미량의 Arsenic이 용융상태의 Lead에 첨가되었을 때 Lead의 표면장력을 현저하게 저하시키는 것을 조사하였다.

      • Radiographic Findings in the Pulmonary Diseases of Infants Weighing Under 1500 Grams at Birth

        Bahk, Yong Whee,Park, Jeong Mi,Kim, Ok Hwa CATHOLIC MEDICAL CENTER 1991 Bulletin of the Clinical Research Institute Vol.19 No.2

        Since the introduction of intensive perinatal care, the survival rate of infants weighing less than 1500 gm at birth has improved substantially. However, the pulmonary diseases remain to be the major causes of the high mortality of these low birth weight infants. In order to systematically assess an epidemiologic distribution of the pulmonary diseases in these very low weight prematures, we have analyzed the chest x-rays of 102 infants weighing less than 1500 gm. These consisted of 30 with extreme low birth weight (ELBW) weighing less than 1000 gm and 72 with very low birth weight (VLBW) weighing 1001~1500 gm. The survival rate of ELBW and VLBW was 10% and 49%, respectively. Seventy of 102 infants had abnormal findings in the chest x-ray. Forty-eight had idiopathic respiratory distress syndrome (IRDS). Seven out of 48 infants with IRDS had persistent ductus arteriosus, and in only 2 (30%) of 7 cases were alive. Endotracheal intubation and assisted ventilation application for the treatment of IRDS resulted in pulmonary interstitial emphysema in 4 infants and pneumothorax and /or pneumomediastinum in 4 infants. Displacement of endotracheal intubation showed lobar and/or unilateral lung atelectasis in 8 infants and a case of accidental dislodgement of intubation tube into the esophagus resulted in air esophagogram and worsened lung aeration. In spite of the development of many sophisticated methods of diagnostic radiology, the chest x-ray was still the most valuable yet simple way of evaluating the pulmonary problems in these extreme and very low birth weight prematures.

      • SCOPUSKCI등재
      • Pollicization of the Middle Finger

        Bahk, Sujin,Eo, Su Rak,Cho, Sang Hun,Jones, Neil Ford The Korean Society for Microsurgery 2015 Archives of reconstructive microsurgery Vol.24 No.2

        Purpose: Pollicization typically involves surgical migration of the index finger to the position of the thumb. This procedure facilitates the conversion of a useless hand into a well-functioning one in patients who are not amenable to the toe-to-hand transfer. However, middle finger pollicization has been rarely reported. Materials and Methods: We reconstructed a thumb by immediate pollicization of the remnants of the middle finger in two patients who sustained a tumor and a trauma, respectively. The former, after cancer ablation was performed, has not been reported literally, and the latter involved free devitalized pollicization of the middle finger using a microsurgical anastomosis. The distal third extensor communis tendon was sutured to the proximal extensor pollicis longus tendon and the distal flexor digitorum superficialis and profundus were sutured to the proximal flexor pollicis longus. The abductor pollicis brevis tendon was sutured to the distal end of the first palmar interosseous muscle. Coaptation of the third digital nerve and the superficial radial nerve branch was performed. Results: Patients showed uneventful postoperative courses without complication such as infection or finger necrosis. Based on the principles of pollicization, a wide range of pinch and grasp movements was successfully restored. They were pleased with the functional and cosmetic results. Conclusion: Although the index finger has been the digit of choice for pollicization, we could also use the middle finger on specific occasions. This procedure provides an excellent option for the reconstruction of a mutilated thumb and could be performed advantageously in a single step.

      • An Effect of Island Distance in Developing Insular Coleopteran Communities

        Bahk, Junbeom 서울대학교 국토문제연구소 2019 地理學論叢 Vol.65 No.-

        In this research, the effect of the relationship between physical environment of islands and species diversity of South Korean insular Coleoptera was calculated, using South Korean natural environment survey data. Island size was directly proportional to species diversity. However, it was also inversely proportional in big inhabited islands. It is because the islands can support larger human population and undergo severe and continuous human disturbance. Island distance was not correlated with species diversity. However, island distance was directly proportional to the number of macropterous species. It suggests that macropterous species have advantage over brachypterous species in terms of reaching far islands and colonizing on their own in case of less outside disturbance. To test the difference of distribution of Coleoptera with different wing length, four islands around Boryeong city in Chungcheongnamdo province were surveyed. 755 samples were collected. Identification result showed the tendency that dominance index was inversely proportional to island distance and the rate of macropterous species. It may be originated from the characteristic of macropterous species such as slow colonization and fewer individuals in restricted area. Therefore, the difference of dispersal ability with wing length may affect species composition of islands. This research can be used as base data when predicting species composition and species diversity of uninvestigated islands.

      • SCOPUSKCI등재

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