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Surface Modification of Rubber by the Treatment with Atmospheric Cold Plasma Torch
NAITO, Kazuo,KUSANO, Yukihiro,HORIUCHI, Takao,LEE, Bong-Ju,KATO, Nobuko,KOINUMA, Hideomi CHOSUN UNIVERSITY 1997 Basic Science and Engineering Vol.1 No.1
A new possibility of our atmospheric cold plasma torch has been examined on the treatment of air-exposed surface of a vulcanized rubber. The plasma treatment effect was evaluated by the wettability as well as by the bondability with a urethane adhesive. the adhesive property was improved by the plasma treatment with the increase in oxygen radical in the plasma.
강우 형태를 고려한 한국과 일본의 침출수 처리 및 조절 시설 규모 산정에 관한 연구
( Park Seungtaek ),( Kato Yosikane ),( Tameda Kazuo ),안종수 ( Ahn Jongsoo ),( Higuchi Sotaro ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.2
한국과 일본은 폐기물 처리방법, 날씨, 지리적으로 다르다. 그러한 차이에 의해 두 나라의 매립 관리 방법에 대해 동일한 조건하에서 비교하기는 어렵다. 그러나, 어떠한 조건에서든 두 나라의 매립지 침출수 관리는 중요하며, 침출수 처리 시설의 규모 산정과 물수지 시뮬레이션을 통한 침출수 조절 시설의 산정은 더욱 중요하다. Korea and Japan have different waste management methods, weather and geography. Such differences make it difficult to compare the landfill management methods of both countries under identical conditions. Under any conditions, however, leachate management at a landfill in both countries is important and setting the scale of leachate treatment facility and that of leachate adjustment facility through water balance simulations is much more important.
DETERMINATION AND CORRELATION OF LLE AND SLE DATA FOR THE SYSTEM ANILINE + CYCLOHEXANE
Ochi, Kenji,Kato, Yoshihisa,Saito, Tohru,Kurihara, Kiyofumi,Kojima, Kazuo 한국화학공학회 1997 Korean Journal of Chemical Engineering Vol.14 No.5
A newly developed laser light scattering technique was used for the determination of mutual solubilities in the aniline+cyclohexane system at moderate pressures. The liquid-liquid equilibria (LLE) were measured from the region of solid-liquid equilibria (SLE) to the upper critical solution temperature. Freezing points in this system were determined by a cooling curve method. The solubility data were correlated with the NRTL equation.
( Park Seungtaek ),( Kato Yosikane ),( Tameda Kazuo ),( Ahn Jongsoo ),( Higuchi Sotaro ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.1
Korea and Japan have different waste management methods, weather and geography. Such differences make it difficult to compare the landfill management methods of both countries under identical conditions. Under any conditions, however, leachate management at a landfill in both countries is important and setting the scale of leachate treatment facility and that of leachate adjustment facility through water balance simulations is much more important.
Articles : Determination and Correlation of LLE and SLE Data For the System Aniline+Cyclohexane
( Ken Ji Ochi ),( Yoshihisa Kato ),( Tohru Saito ),( Kiyofumi Kurihara ),( Kazuo Kojima ) 한국화학공학회 1997 Korean Journal of Chemical Engineering Vol.14 No.5
A newly developed laser light scattering technique was used for the determination of mutual solubilities in the aniline+cyclohexane system at moderate pressures. The liquid-liquid equilibria (LLE) were measured from the region of solid-liquid equilibria (SLE) to the upper critical solution temperature. Freezing points in this system were determined by a cooling curve method. The solubility data were correlated with the NRTL equation.
Superconducting MgB2 Films as Radiation Detectors
Takekazu Ishida,Daisuke Fujiwara,Hisashi Shimakage,Kazuo Satoh,Masahiko Machida,Masaru Kato,Masatoshi Nishikawa,Shigehito Miki,Tsutomu Yotsuya,Zhen Wang 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.48 No.5I
The thermal response of a membrane-structured MgB2 film can be used to detect various sorts of radiations. High-quality MgB2 films were prepared by a sputtering technique. The MgB2 radiation detector consisted of an MgB2 thin-film meander line on a 0.5-μm-thick SiN membrane. The detector devices were placed in a 4 K refrigerator, and the operating temperature was controlled at a certain temperature below Tc. Light from a 20-ps pulsed laser directly irradiated the MgB2 device; the end of the optical fiber was fixed in front of the device. An erbium-doped fiber amplifier (EDFA) and a GP-IB attenuator were used to control the laser power, and the output voltage was observed through a low-noise amplifier by using a digital oscilloscope. The output signals caused by thermal response were clearly observed. Systematic studies of the output signals were conducted, and effects of device design, dc bias conditions, bias temperature, and input laser power were considered. We report the out-of-equilibrium thermodynamics, which was investigated by means of extensive computer simulations based on the time-dependent Ginzburg-Landau equations, thermodynamics, and electrodynamics. Large-scale calculations were carried out under the realistic conditions of actual devices by using an Earth Simulator (ES). One attractive application is to use the device as a novel neutron detector by employing the 10B(n,)7Li nuclear reaction with a local energy release of 2.3 MeV.
ELB in IP/NGEO Satellite Constellations: Issues and Solutions
Mashimo, Daisuke,Taleb, Tarik,Hashimoto, Kazuo,Nemoto, Yoshiaki,Kato, Nei 통신위성우주산업연구회 2006 Joint Conference on Satellite Communications Vol.2006 No.-
To ensure an intelligent engineering of traffic over satellite networks, the authors have recently proposed a routing protocol dubbed Explicit Load Balancing (ELB). The protocol enables neighboring satellites to explicitly exchange information on their congestion status. A satellite that is about to get congested requests its neighboring satellites to decrease their data forwarding rates. In response, the neighboring satellites search for less congested paths that do not include the satellite in question and communicate a portion of data, primarily destined to the satellite, via the retrieved paths. While transmitting packets of the same flow over different links helps to better distribute the traffic over the satellite constellation, and accordingly alleviates congestion and avoids packet drops, it leads to the reception of packets in an out-of-order manner at the receiver side. In case of TCP, this phenomenon results in the transmission of duplicate acknowledgments, unnecessarily halves the congestion window of TCP, and ultimately degrades the throughput. As a remedy to this issue, we suggest that receivers refer to the Time-to-Live (TTL) field of packet headers to judge whether the out of order in the reception of packets is due to congestion or simply to changes in the communication path. Furthermore, as packets have to traverse more hops in ELB, delay-sensitive applications may get affected by the extra delay due to hops. To cope with such an issue, we consider the use of differentiated services we classify users into a number of classes, namely delay sensitive, throughput-sensitive, and best effort. Via simulations, we demonstrate the efficiency of ELB in such environments.
Management of Chronic Expanding Haematoma Using Triamcinolone after Latissimus Dorsi Flap Harvesting
Hamada, Mariko,Shimizu, Yusuke,Aramaki-Hattori, Noriko,Kato, Tatsuya,Takada, Keiko,Aoki, Marie,Kishi, Kazuo,Nagasao, Tomohisa Korean Society of Plastic and Reconstructive Surge 2015 Archives of Plastic Surgery Vol.42 No.2
Chronic expanding haematoma (CEH) is a rare type of haematoma that enlarges slowly and continuously without coagulation. It can occur following surgery because of shear stress-induced bleeding in the scar tissue between the subcutaneous fat and fascia. We present three cases of large chronic CEH that were successfully treated with triamcinolone injections. Three female patients developed large chronic CEH at 9 months, 5 years, and 6 years, respectively, after latissimus dorsi flap harvesting for breast reconstruction. Although the condition did not improve after multiple sessions of haematoma aspiration in the first two patients, it resolved following a single 40-mg triamcinolone injection along with appropriate compression dressing for several weeks. In the third patient, triamcinolone was injected immediately after the initial aspiration of the haematoma, and the condition improved considerably. There were no side effects in any of the patients. To the best of our knowledge, this is the first report of successful treatment of large CEH using triamcinolone. Therefore, we suggest that triamcinolone injections be considered for the treatment of CEH.
Management of Chronic Expanding Haematoma Using Triamcinolone after Latissimus Dorsi Flap Harvesting
Mariko Hamada,Yusuke Shimizu,Noriko Aramaki-Hattori,Tatsuya Kato,Keiko Takada,Marie Aoki,Kazuo Kishi,Tomohisa Nagasao 대한성형외과학회 2015 Archives of Plastic Surgery Vol.42 No.2
Chronic expanding haematoma (CEH) is a rare type of haematoma that enlarges slowly andcontinuously without coagulation. It can occur following surgery because of shear stressinducedbleeding in the scar tissue between the subcutaneous fat and fascia. We present threecases of large chronic CEH that were successfully treated with triamcinolone injections. Threefemale patients developed large chronic CEH at 9 months, 5 years, and 6 years, respectively,after latissimus dorsi flap harvesting for breast reconstruction. Although the condition did notimprove after multiple sessions of haematoma aspiration in the first two patients, it resolvedfollowing a single 40-mg triamcinolone injection along with appropriate compression dressingfor several weeks. In the third patient, triamcinolone was injected immediately after the initialaspiration of the haematoma, and the condition improved considerably. There were no sideeffects in any of the patients. To the best of our knowledge, this is the first report of successfultreatment of large CEH using triamcinolone. Therefore, we suggest that triamcinolone injectionsbe considered for the treatment of CEH.