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CO₂ Absorption by “Dry Ionic Liquids”

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Green and Sustainable Chemistry 2016年第4期6卷 167-181页

作者： Mayuko Ishihara masaya miyake Mitsuru Satoh Department of Chemical Science and Engineering Tokyo Institute of Technology Tokyo Japan

Dry Ionic Liquid (D-IL) never means some “water-free” ionic liquid but is a member of “Dry Matter (DM)”. DM is a collective name for powdery substances that are composed of micro droplets as an inner core phase and surrounding hydrophobic silica nano particles as the shell part. When the core part is water, it is called Dry Water (DW), which is the first member of DM, while D-IL is the newest one. Because of the much larger surface area of DM compared with that of the inner phase in bulk state, this novel substances are expected to show excellent performance for any mass transfer through the gas-liquid interface. In the present study, we investigated CO2 absorption by some D-ILs and a DM containing a polyamine in terms of the speed to the equilibrium and a mol-based absorption efficiency. Compared with the respective bulk systems, the D-IL and DM systems proved to be accelerated by ca.50 times without impairing the absorption efficiency.

关键词： Dry Matter CO2 Absorption Ionic Liquids Silica Nanoparticles

A review of isolated muscular ventricular septal defect

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World Journal of Pediatrics 2020年第2期16卷 120-128页

作者： Toshiharu miyake Department of Pediatrics Kindai University Nara Hospital1248-1OtodaIkomaNara 630-0293Japan

Background Color Doppler echocardiography greatly facilitates the diagnosis of isolated muscular ventricular septal defect with a small *** sources Original research articles were collected from database,including PubMed and Google *** articles about muscular ventricular septal defect were *** The frequency of isolated muscular ventricular septal defect is 5.7%in preterm infants and 1.1-5.3%in term *** closure in muscular ventricular septal defect occurs with higher frequency and earlier than in perimembranous ventricular septal *** 80-90%of isolated muscular ventricular septal defect closes spontaneously by 12 months of *** muscular ventricular septal defect is spontaneously closed earlier in the short term,but no site difference is found in the long *** spontaneous closure mechanism is regarded as aposition of the muscle tissueor fibrous tissue formation in the right ventricular side,but in rare cases involves aneurysm formation of the fibrous *** spontaneous closure of isolated muscular ventricular septal defect diagnosed for the fetus,further studies are *** microarray analysis of fetuses with isolated muscular ventricular septal defect has revealed that it is not a severe risk factor of chromosomal *** This paper presents a review of the history of the diagnosis and frequency of ventricular septal defect,with discussion of its natural history from the fetal period to after birth in patients with isolated muscular ventricular septal defect.

关键词： Color Doppler echocardiography Fetus Infant Spontaneous closure

Role of atomic-scale thermal fluctuations in the coercivity

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npj Computational Materials 2020年第1期6卷 1084-1090页

作者： Yuta Toga Seiji Miyashita Akimasa Sakuma Takashi miyake National Institute for Materials Science(NIMS) Tsukuba 305-0047Japan Elements Strategy Initiative Center for Magnetic Materials(ESICMM) TsukubaJapan Institute for Solid State Physics University of TokyoKashiwa 277-8581Japan The Physical Society of Japan Tokyo 113-0033Japan Department of Applied Physics Tohoku UniversitySendai 980-8579Japan National Institute of Advanced Industrial Science and Technology(AIST) Tsukuba 305-8568Japan

The microscopic mechanism of coercivity at finite temperature is a crucial issue for permanent *** we present the temperature dependence of the coercivity of an atomistic spin model for the highest-performance magnet Nd_(2)Fe_(14)*** quantitative analysis of the magnetization reversal with thermal fluctuations,we focus on the free energy landscape as a function of the *** free energy is calculated by the replica-exchange Wang–Landau *** approach allows us to address a slow nucleation problem,i.e.,thermal activation effects,in the magnetization *** concretely observed that the thermal fluctuations lead to a downward convexity in the coercivity concerning the ***,through analyzing the microscopic process of the thermal activation(nucleation),we discover the activation volume is insensitive to a magnetic field around the *** insensitivity explains the linear reduction of the free energy barrier by the magnetic field in the nucleation process.

关键词： thermal activation magnetization

Rate of hexabromocyclododecane decomposition and production of brominated polycyclic aromatic hydrocarbons during combustion in a pilot-scale incinerator

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Journal of Environmental Sciences 2017年第11期29卷 91-96页

作者： Yuichi miyake Masahiro Tokumura Qi Wang Takashi Amagai Yuichi Horii University of Shizuoka 52-1 Yada Suruga-ku Shizuoka 422-8526 Japan Center for Environmental Science in Saitama 914 Kamitanadare Kazo Saitama 34F-0115 Japan

Here, we examined the incineration of extruded polystyrene containing hexabromocyclododecane（HBCD） in a pilot-scale incinerator under various combustion temperatures（800–950℃） and flue gas residence times（2–8 sec）. Rates of HBCD decomposition ranged from 99.996%（800℃, 2 sec） to 99.9999%（950℃, 8 sec）; the decomposition of HBCD, except during the initial stage of combustion（flue gas residence time 〈 2 sec）, followed a pseudo-first-order kinetics model. An Arrhenius plot revealed that the activation energy and frequency factor of the decomposition of HBCD by combustion were 14.2 kJ/mol and 1.69 sec^（-1）,respectively. During combustion, 11 brominated polycyclic aromatic hydrocarbons（BrPAHs）were detected as unintentional by-products. Of the 11 BrPAHs detected, 2-bromoanthracene and 1-bromopyrene were detected at the highest concentrations. The mutagenic and carcinogenic BrPAHs 1,5-dibromoanthracene and 1-bromopyrene were most frequently detected in the flue gases analyzed. The total concentration of BrPAHs exponentially increased（range,87.8–2,040,000 ng/m^3） with increasing flue gas residence time. Results from a qualitative analysis using gas chromatography/high-resolution mass spectrometry suggest that bromofluorene and bromopyrene（or fluoranthene） congeners were also produced during the combustion.

关键词： Brominated polycyclic aromatic hydrocarbons Flame retardant Hexabromocyclododecane(HBCD) Incinerator Persistent organic pollutants(POPs)

Impact of penile rehabilitation with low-dose vardenafil on recovery of erectile function in Japanese men following nerve-sparing radical prostatectomy

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Asian Journal of Andrology 2014年第6期16卷 892-896页

作者： Yuzo Nakano Hideaki miyake Koji Chiba Masato Fujisawa Division of Urology Kobe University Graduate School of Medicine Kusunoki-cho Chuo-ku Kobe Japan.

Erectile dysfunction （ED） is a major complication after radical prostatectomy （RP）; however, debatecontinues regarding the efficacy of penile rehabilitation in the recovery of the postoperative erectile function （EF）. This study includeda total of 103 consecutive sexually active Japanese men with localized prostate cancer undergoing nerve-sparing RP, and analyzed the postoperative EF, focusing on the significance of penile rehabilitation. In this series, 24 and 79 patients underwent bilateral and unilateral nerve-sparing RPs, respectively, and 10 or 20 mg of vardenafil was administered to 35 patients at least once weekly, who agreed to undergo penile rehabilitation. Twelve months after RP, 48 （46.6%） of the 103 patients were judged to have recovered EF sufficient for sexual intercourse without any assistance. The proportion of patients who recovered EF in those undergoing penile rehabilitation （60.0%） was significantly greater than that in those without penile rehabilitation （38.2%）. Of several parameters examined, the preoperative International Index of Erectile Function-5 （IIEF-5） score and nerve-sparing procedure were significantly associated with the postoperative EF recovery rates in patients with and without management by penile rehabilitation, respectively. Furthermore, univariate analysis identified the preoperative IIEF-5 score, nerve-sparing procedure and penile rehabilitation as significant predictors of EF recovery, among which the preoperative IIEF-5 score and nerve-sparing procedure appeared to be independently associated with EF recovery. Considering these findings, despite the lack of independent significance, penile rehabilitation with low-dose vardenafil could exert a beneficial effect on EF recovery in Japanese men following nerve-sparing RP.

关键词： erectile function nerve-sparing radical prostatectomy penile rehabilitation vardenafil

Significance of preoperatively observed detrusor overactivity as a predictor of continence status early after robot-assisted radical prostatectomy

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Asian Journal of Andrology 2014年第6期16卷 869-872页

作者： Akihiro Yanagiuchi Hideaki miyake Kazushi Tanaka Masato Fujisawa Division of Urology Kobe University Graduate School of Medicine 7-5-1 Kusunoki-Cho Chuo-Ku Kobe Japan.

Several recent studies have reported the involvement of bladder dysfunction in the delayed recovery of urinary continence following radical prostatectomy （RP）. The objective of this study was to investigate the significance of detrusor overactivity （DO） as a predictor of the early continence status following robot-assisted RP （RARP）. This study included 84 consecutive patients with prostate cancer undergoing RARP. Urodynamic studies, including filling cystometry, pressure flow study, electromyogram of the external urethral sphincter and urethral pressure profile, were performed in these patients before surgery. Urinary continence was defined as the use of either no or one pad per day as a precaution only. DO was preoperatively observed in 30 patients （35.7%）, and 55 （65.5%） and 34 （40.5%） were judged to be incontinent 1 and 3 months after RARP, respectively. At both 1 and 3 months after RARP, the incidences of incontinence in patients with DO were significantly higher than in those without DO. Of several demographic and urodynamic parameters, univariate analyses identified DO and maximal urethral closure pressure （MUCP） as significant predictors of the continence status at both 1 and 3 months after RARP. Furthermore, DO and MUCP appeared to be independently associated with the continence at both I and 3 months after RARP on multivariate analysis. These findings suggest that preoperatively observed DO could be a significant predictor of urinary incontinence early after RARP; therefore, it is recommended to perform urodynamic studies for patients who are scheduled to undergo RARP in order to comprehensively evaluate their preoperative vesicourethral functions.

关键词： detrusor overactivity robot-assisted radical prostatectomy urinary incontinence

Roles of rare earth oxide additives in millimeter-wave sintering of AlN

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Journal of Rare Earths 2008年第2期26卷 141-145页

作者： Yukio Makino Takashi Yoshioka Hiromi Nakano Toshiyuki Ueno Shoji miyake Osaka University 11-1 Mihogaoka IbarakiOsaka 567-0047 Japan Shimane Institute for Industrial Technology 1 Hokuryo-cho Matsue Simane 690-0816 Japan Ryukoku University Seta Otsu Shiga 520-2194 Japan Kinki University 3-4-1 Kowakae Higashi-OsakaOsaka 577-8502 Japan

Roles of rare earth oxide （RE2O3） additives in millimeter-wave（MM） sintering of AIN were investigated from the standpoints of phase diagram, heating characteristics of rare earth oxides, and morphology of intergranular oxide phase. In the millimeter-wave sintering of AIN, densification temperature decreased with the decrease of the ionic radius of rare earth ion and was closely related with the eutectic temperature in the RE2Oa-Al2O3 binary system. The lowest densification temperature in the millimeter-wave sintering of AIN with Yb2O3 additive was attributed to the largest heating rate of Yb2O3-Al2O3 binary oxide under millimeter-wave radiation. Furthermore, the lowest densification temperature could be attained while selecting the Yb2O3 content so as to form the intergranular phase with the eutectic composition in the Yb2O3-Al2O3 binary system. The result showed good agreement with the above mentioned during the sintering of Si3N4 with Yb2O3-Al2O3 additive. From TEM observation, it was verified that film-like intergranular oxide phase formed under millimeter-wave radiation was favorable for attaining high thermal conductivity in the Yb2O3 added AINs.

关键词： millimeter-wave rare earth oxide AIN, Si3N4 rapid densification selective heating heating rate thermal conductivity morphology

Influence of bias on properties of carbon films deposited by MCECR plasma sputtering method

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中国有色金属学会会刊：英文版 2004年第z1期14卷 251-254页

作者： CAI Chang-long DIAO Dong-feng S.miyake T.Matsumoto Department of Photoelectrical Engineering Xi''an Institute of Technology Xi''an 710032 China School of Mechanical Engineering Xi''an Jiaotong University Xi''an 710049 China Joining and Welding Research Institute Osaka University Osaka 567-0047 Japan Joining and Welding Research Institute Osaka University Osaka 567-0047 Japan

The mirror-confinement-type electron cyclotron resonance(MCECR) plasma source has high plasma density and high electron temperature. It is quite useful in many plasma processing, and has been used for etching and thin-film deposition. The carbon films with 40 nm thickness were deposited by MCECR plasma sputtering method on Si, and the influence of substrate bias on the properties of carbon films was studied. The bonding structure of the film was analyzed by the X-ray photoelectron spectroscopy(XPS), the tribological properties were measured by the pin-on-disk(POD) tribometer, the nanohardness of the films was measured by the nanoindenter, and the deposition speed and the refractive index were measured by the ellipse meter. The better substrate bias was obtained, and the better properties of carbon films were obtained.

关键词： MCECR plasma sputtering carbon films substrate bias films properties

Synthesis of Novel Metal Ion Sensors Based on DNA-Metal Interactions

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复旦学报(自然科学版) 2005年第5期 215-216页

作者： Akira Ono,Humika Togashi,Yoko miyake Department of Applied Chemistry Faculty of Engineering Kanagawa University 3-27-1 Rokkakubashi Kanagawa-ku Yokohama-shi Kanagawa-ken 221-8686 Japan Department of Chemistry Faculty of Science Tokyo Metropolitan University 1-1 Minami-ohsawa Hachioji Tokyo 192-0397 Japan Department of Chemistry Faculty of Science Tokyo Metropolitan University 1-1 Minami-ohsawa Hachioji Tokyo 192-0397 Japan