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STRATEGY FOR A REGIONAL EXCHANGE RATE ARRAGEMENT IN EAST ASIA: ANALYSIS, REVIEW, AND PROPOSAL
Masahiro Kawai,Shinji Takagi 연세대학교 동서문제연구원 2005 Global economic review Vol.34 No.1
This paper discusses major conceptual and empirical issues relevant to the exchange rate policies of East Asian economies. Given the high degree of economic integration, intra-regional exchange rate stability remains an important objective in East Asia. But the current uncoordinated practice of each economy managing exchange rates or maintaining a de facto dollar peg is not optimal for this purpose. The paper suggests that the regions governments take a coordinated action to shift the target of nominal exchange rate stabilization from the US dollar alone to a common basket of the US dollar, the Japanese yen, and the euro, which would be more reflective of the average structure of foreign trade and direct investment. At least initially, each economy is free to choose its own formal exchange rate arrangement, be it a fixed exchange rate regime, a crawling peg or a managed float with wide margins, as long as it chooses the common basket as the reference. Such an arrangement is a pragmatic policy option for East Asia until greater political and institutional developments create an environment conducive to a more robust framework of monetary and exchange rate policy coordination.
Kawai, Hiroshi,Kamiya, Mitsunobu,Komatsu, Teruhisa,Nakaoka, Masahiro,Yamamoto, Tomoko,Marine Life Research Group of Takeno, Marine Life Research Group of Takeno The Korean Society of Phycology 2007 ALGAE Vol.22 No.1
In order to understand the impact of the heavy-oil pollution by the 1997 Nakhodka oil spill on the intertidal macroalgal vegetation, we have been monitoring succession in the intertidal flora since 1997 at Oh-ura, Takno, and Imago-Ura Cove, Kasumi in Hyogo Prefecture, northwestern coast of Honshu, Japan. We employed two different monitoring methods: 1) The percent cover of macro-algae (seaweeds) in 1 x 1 m quadrats along 450 m intertidal transects parallel to the shoreline were assessed and recorded by photographic imaging until 2002, and for 30-40 m transects of the most heavily polluted areas in 2004 and 2006; 2) The percent cover of macro-algae in 0.5 x 0.5 m quadrats along a transect line perpendicular to the shore were recorded and all macrophytes within the quadrat were completely removed to record the wet weight of each taxon (1997-2006). Based on the monitoring data, we conclude that the high intertidal zone at Imago-ura, where a large part of the stranded oil accumulated, suffered the heaviest damage and experienced the slowest recovery. In addition, although the original status of macroalgal vegetation before the impact was not well-documented, it appeared that recovery from the damage caused by the oil pollution required four to five years.
Hiroshi Kawai,the Marine Life Research Group of Takeno,Tomoko Yamamoto,Masahiro Nakaoka,Teruhisa Komatsu,Mitsunobu Kamiya 한국조류학회I 2007 ALGAE Vol.22 No.1
In order to understand the impact of the heavy-oil pollution by the 1997 Nakhodka oil spill on the intertidal macroalgal vegetation, we have been monitoring succession in the intertidal flora since 1997 at Oh-ura, Takno, and Imago-Ura Cove, Kasumi in Hyogo Prefecture, northwestern coast of Honshu, Japan. We employed two different monitoring methods: 1) The percent cover of macro-algae (seaweeds) in 1 x 1 m quadrats along 450 m intertidal transects parallel to the shoreline were assessed and recorded by photographic imaging until 2002, and for 30-40 m transects of the most heavily polluted areas in 2004 and 2006; 2) The percent cover of macro-algae in 0.5 x 0.5 m quadrats along a transect line perpendicular to the shore were recorded and all macrophytes within the quadrat were completely removed to record the wet weight of each taxon (1997-2006). Based on the monitoring data, we conclude that the high intertidal zone at Imago-ura, where a large part of the stranded oil accumulated, suffered the heaviest damage and experienced the slowest recovery. In addition, although the original status of macroalgal vegetation before the impact was not well-documented, it appeared that recovery from the damage caused by the oil pollution required four to five years.
Photon-mode modulation of fluorescence and electrical currentwith a photochromic conducting polymer
Tsuyoshi Kawai,Yukiko Nakashima,Tomokatsu Kunitake,Masahiro Irie 한국물리학회 2005 Current Applied Physics Vol.5 No.2
Fluorescence intensity and electrical conductivity of a photochromic conducting polymer based on photochromic diarylethene are modulated with the photochromic reactions induced by alternative irradiation with UV and visible light. Rectifying current. voltage characteristics of Al/polymer junction structure also shows marked change with the photochromic reaction of diarylethene units in polymer main chain.
Review : EUS-Guided Biliary Drainage
( Kenji Yamao ),( Kazuo Hara ),( Nobumasa Mizuno ),( Akira Sawaki ),( Susumu Hijioka ),( Yasumasa Niwa ),( Masahiro Tajika ),( Hiroki Kawai ),( Shinya Kondo ),( Yasuhiro Shimizu ),( Vikram Bhatia ) The Editorial Office of Gut and Liver 2010 Gut and Liver Vol.4 No.s1
Endoscopic ultrasonography (EUS) combines endoscopy and intraluminal ultrasonography, and allows imaging with a high-frequency transducer over a short distance to generate high-resolution ultrasonographic images. EUS is now a widely accepted modality for diagnosing pancreatobiliary diseases. EUS-guided fineneedle aspiration (EUS-FNA) using a curved linear- array echoendoscope was initially described more than 20 years ago, and since then many researchers have expanded its indications to sample diverse lesions and have also used it for various therapeutic purposes. EUS-guided biliary drainage (EUS-BD) is one of the therapeutic procedures that has been developed using a curved linear-array echoendoscope. Technically, EUS-BD includes rendezvous techniques via transesophageal, transgastric, and transduodenal routes, EUS-guided choledochoduodenostomy (EUS-CDS), and EUS-guided hepaticogastrostomy (EUS-HGS). Published data have demonstrated a high success rate, albeit with a comparatively high rate of nonfatal complications for EUS-CDS and EUS-HGS, and a comparatively low success rate with a low complication rate for the rendezvous technique. At present, these procedures represent an alternative to surgery or percutaneous transhepatic biliary drainage (PTBD) for patients with obstructive jaundice when endoscopic biliary drainage (EBD) has failed. However, these procedures should be performed in centers with extensive experience in linear EUS and therapeutic biliary ERCP. Large prospective studies are needed in the near future to establish standardized EUS-BD procedures as well as to perform controlled comparative trials between EUS-BD and PTBD, between rendezvous techniques and direct-access techniques (EUS-CDS and EUS-HGS), and between EBD and EUS-BD. (Gut Liver 2010;4(Suppl. 1):S67-75)