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一种经氟化和热处理在双壁碳纳米管上生成缺陷的方法(英文)

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催化学报 2014年第6期35卷 864-868页

作者： Hiroyuki Muramatsu Kazunori Fujisawa Yong-Il Ko Kap-Seung Yang Takuya Hayashi Morinobu Endo Cheol-Min Yang Yong Chae Jung yoong ahm kim Faculty of Engineering Shinshu University 4-17-1 Wakasato Nagano 380-8553 Japan School of Polymer Science and Engineering Chonnam National University 77 Yongbong-ro Buk-gu 500-757 Gwangju Korea Institute of Carbon Science and Technology Shinshu University 4-17-1 Wakasato Nagano 380-8553 Japan Institute of Advanced Composite Materials Korea Institute of Science and Technology Chudong-ro 92 Bongdong-eup Wanju-gun Jeonbuk 565-905 Korea

Nanoscale defects in the outer tube to preserve the electrical and optical features of the inner tube can be engineered to exploit the intrinsic properties of double walled carbon nanotubes (DWCNTs) for various promising applications. We demonstrated a selective way to make defects in the outer tube by the fluorination of DWCNTs followed by the thermal detachment of the F atoms at 1000 °C in argon. Fluorinated DWCNTs with different amounts of F atoms were prepared by reacting with fluorine gas at 25, 200, and 400 °C that gave the stoichiometry of CF0.20, CF0.30, and CF0.43, respectively. At the three different temperatures used, we observed preservation of the coaxial morphology in the fluorinated DWCNTs. For the DWCNTs fluorinated at 25 and 200 °C, the strong radial breathing modes (RBMs) of the inner tube and weakened RBMs of the outer tube indicated selective fluorine attachment onto the outer tube. However, the disappearance of the RBMs in the Raman spectrum of the DWCNTs fluorinated at 400 °C showed the introduction of F atoms onto both inner and outer tubes. There was no significant change in the morphology and optical properties when the DWCNTs fluorinated at 25 and 200 °C were thermally treated at 1000 °C in argon. However, in the case of the DWCNTs fluorinated at 400 °C, the recovery of strong RBMs from the inner tube and weakened RBMs from the outer tube indicated the selective introduction of substantial defects on the outer tube while preserving the original tubular shape. The thermal detachment of F atoms from fluorinated DWCNTs is an efficient way to make highly defective outer tubes for preserving the electrical conduction and optical activity of the inner tubes.

关键词：双壁碳纳米管热处理氟化缺陷光学特性 F原子化学计量呼吸模式

Long-term treatment outcomes of clevudine in antiviral-naive patients with chronic hepatitis B

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World Journal of Gastroenterology 2012年第47期18卷 6943-6950页

作者： Suk Bae kim Il Han Song Young Min kim Ran Noh Ha Yan Kang Hyang Ie Lee Hyeon yoong Yang An Na kim Hee Bok Chae Sae Hwan Lee Hong Soo kim Tae Hee Lee Young Woo Kang Eaum Seok Lee Seok Hyun kim Byung Seok Lee Heon Young Lee Department of Internal Medicine Dankook University College of MedicineCheonan 330-715South Korea Department of Internal Medicine Eulji University College of MedicineDaejeon 302-779South Korea Department of Internal Medicine Chungbuk University College of MedicineCheongju 362-711South Korea Department of Internal Medicine Soonchunhyang University College of MedicineCheonan 330-090South Korea Department of Internal Medicine Konyang University College of MedicineDaejeon 371-718South Korea Department of Internal Medicine Chungnam University College of MedicineDaejeon 301-721South Korea

AIM:To evaluate the treatment outcomes of clevudine compared with entecavir in antiviral-naive patients with chronic hepatitis B(CHB).METHODS:We retrospectively analyzed the clinical data of CHB patients treated with clevudine 30 mg/d and compared their clinical outcomes with patients treated with entecavir 0.5 mg/*** biochemical response,as assessed by serum alanine aminotransferase(ALT) activity,virologic response,as assessed by serum hepatitis B virus DNA(HBV DNA) titer,serologic response,as assessed by hepatitis B e antigen(HBeAg) status,and virologic breakthrough with genotypic mutations were ***:Two-hundred and fifty-four patients [clevudine(n = 118) vs entecavir(n = 136)] were *** clevudine-treated patients,the cumulative rates of serum ALT normalization were 83.9% at week 48 and 91.5% at week 96(80.9% and 91.2% in the entecavir group,respectively),the mean titer changes in serum HBV DNA were-6.03 and-6.55 log 10 copies/mL(-6.35 and-6.86 log 10 copies/mL,respectively,in the entecavir group),and the cumulative non-detection rates of serum HBV DNA were 72.6% and 83.1%(74.4% and 83.8%,respectively,in the entecavir group).These results were similar to those of entecavir-treated *** cumulative rates of HBeAg seroconversion were 21.8% at week 48 and 25.0% at week 96 in patients treated with clevudine,which was similar to patients treated with entecavir(22.8% and 27.7%,respectively).The virologic breakthrough in the clevudine group occurred in 9(7.6%) patients at weeks 48 and 15(12.7%) patients at week 96,which primarily corresponded to genotypic mutations of rtM204I and/or *** was no virologic breakthrough in the entecavir ***:In antiviral-naive CHB patients,longterm treatment outcomes of clevudine were not inferior to those of entecavir,except for virologic breakthrough.

关键词：慢性乙型肝炎治疗效果抗病毒患者克拉血清学反应病毒DNA HBeAg

Metastasis of hepatocellular carcinoma to the small bowel manifested by intussusception

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World Journal of Gastroenterology 2006年第12期12卷 1969-1971页

作者： Hyun Soo kim Jung WooShin In Du Jeong Sung-Jo Bang Do Ha kim Neung Hwa Park Gyu Yeol kim Young Min kim Hee Jeong Cha yoong Ki Jeong Division of Gastroenterology Department of Internal MedicineUniversity of Ulsan College of MedicineUlsan University HospitalUlsanKorea Department of Surgery University of Ulsan College of MedicineUlsan University HospitalUlsanKorea Department of Pathology University of Ulsan College of MedicineUlsan University HospitalUlsanKorea Department of Radiology University of Ulsan College of MedicineUlsan University HospitalUlsanKorea

肝细胞癌(HCC ) 是造血地并且 lymphogenously 转移到远地点的一个高度侵略的肿瘤。经常的地点是肺，地区性的淋巴节点，骨头，和肾上腺。但是转移到胃肠(官方补给) 道稀罕、很普通地点胃。到小肠的转移是极其稀罕的。而且，引起摄取的... 详细信息

肝细胞癌(HCC ) 是造血地并且 lymphogenously 转移到远地点的一个高度侵略的肿瘤。经常的地点是肺，地区性的淋巴节点，骨头，和肾上腺。但是转移到胃肠(官方补给) 道稀罕、很普通地点胃。到小肠的转移是极其稀罕的。而且，引起摄取的小肠的变形 HCC 没被报导直到现在。这里，我们向摄取表明的小肠汇报 HCC 的转移的一个案例。

关键词：肝细胞癌肿瘤转移肠套叠病理机制

Simultaneous occurrence of malignant fibrous histiocytoma and hepatocellular carcinoma in cirrhotic liver: A case report

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World Journal of Hepatology 2011年第9期3卷 256-261页

作者： Hee Sang Hwang Nam Du Ha yoong Ki Jeong Jae Hee Suh Hye Jeong Choi Young Min kim Hee Jeong Cha Department of Pathology University of Ulsan College of Medicine Asan Medical Center Department of Radiology University of Ulsan College of Medicine Ulsan University Hospital Department of Pathology University of Ulsan College of Medicine

Primary hepatic malignant fibrous histiocytoma (MFH) is rarely encountered. There have been no reports to date of hepatic MFH associated with liver cirrhosis. The presence of liver cirrhosis is considered an adjunctive feature favoring sarcomatoid hepatocellular carcinoma (HCC) in the diagnosis of spindle cell tumors in liver. We describe here a 59-year-old man with liver cirrhosis due to hepatitis B virus infection 20 years ago. On abdominal computed tomography scanning, two distinct hepatic masses were identified in the background of cirrhosis, which had different radiological features from conventional HCC. He underwent segmentectomy for removal of the tumors. The pathological examination of surgically resected specimen revealed the large malignant spindle cell tumor and small conventional HCC. Additional tissue sampling and immunohistochemical stainings demonstrated that the spindle cell tumor was consistent with MFH. On the post-operative follow-up for 21 mo, a round mass showing similar radiological findings for the previous MFH was appeared on the surface of resection margin, suggesting the recurrence. Despite its rarity, hepatic MFH should be considered during differential diagnosis, even in cirrhotic patients, and extensive tissue sampling and immunohistochemical analyses are necessary in the diagnosis of hepatic spindle cell tumors.

关键词： Liver neoplasm Malignant fibrous histiocytoma Hepatocellular carcinoma Liver cirrhosis

Exotic Beam for Direct Measurement of the 22^Mg＋a

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Journal of Physical Science and Application 2013年第2期3卷 83-86页

作者： Nguyen Ngoc Duy Shiregu Kubono Hidetoshi Yamaguchi David Kahl Takashi Hashimoto Shinsuke Ota Yasuo Wakabayashi Takashi Teranishi yoong Hee kim Joeng Soeg Song L.H. Khiem Jun Hu Department of Physics Dongnai University 04-Le Quy Don Bien Hoa City 71000 Dong Nai Vietnam Institute of Physics Vietnam Academy of Science and Technology Hoang Quoc Viet Hanoi 10000 Vietnam Center for Nuclear Study Graduate School of Science Univ. of Tokyo Hirosawa Wako-shi Saitama 351-0198 Japan Japan Atomic Energy Agency (JAEA) Mukoyama Naka-shi Ibaraki 311-0193 Japan Department of Physics University of Kyushu Hakozaki Higashi Ward Fukuoka 812-8581 Japan Department of Physics Seoul University Gwanak-ro Gwanak-gu Seoul 151-742 Korea Institute of Modern Physics Chinese Academy of Science Lanzhou 730000 China