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Natural Convection Melting in a Rectangular Heat storage Tank of Carbon Nanotube Dispersed Latent Heat storage Material

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Journal of Thermal science 2024年第3期33卷 847-855页

作者： shin-ichi morita Tomoya sAITO Kazunori TAKAI Yasutaka HAYAMIZU Naoto HARUKI Division of Mechanical and Electrical Engineering Kitami Institute of Technology165 Koen-choKitami-shiHokkaido090-8507Japan National Institute of Technology Yonago College4448 Hikona-cyoYonago-shiTottori683-8502Japan Okayama Prefectural University 111 KubokiSoja-shiOkayama719-1197Japan

A dispersion system fluid can convect even if the dispersoid is a solid ***,heat exchange performance can be improved while maintaining fluidity using a material with high thermal conductivity as the *** study presents the melting performance evaluation results of a latent heat storage material with a carbon nanotube(CNT)dispersion system with high thermal conductivity,which enhances the thermal conductivity of the latent heat storage material and does not limit free *** the thermal conductivity and enhancing the melting convection of the heat storage material result in increased latent heat storage *** this study,the thermal conductivity of the latent heat storage material was successfully increased by dispersing CNTs in the *** 0.1%(in mass)of multi-wall CNT(MWCNT)was dispersed in a paraffin-based latent heat storage material,the shear stress increased by 1.5 times at a shear rate of 500 s^(-1),while taking into account the potential effects of convective ***,a latent heat storage experiment was conducted in a rectangular heat storage tank using the CNT dispersion composition ratio as a parameter.A rectangular vessel with a heated vertical surface was used for the latent heat storage *** melting speed was determined by comparing the amount of latent heat stored in a CNT-dispersed latent heat storage material and a single-phase latent heat storage material *** experimental results show that the time required for the latent heat storage material to completely melt in the heat storage tank was the shortest for the single-phase latent heat storage material ***,the fastest melting progress was observed for the sample with 0.02%(in mass)MWCNT content in the melting rate range of up to approximately 40%in the *** results indicate that this phenomenon is caused by the difference in the melting rates in the upper part of the *** generated data are useful for det

关键词： latent heat storage phase change carbon nano tube free convection heat transfer

Optimal Total sleep Duration per Day to Maintain Health-Related Quality of Life in Male Collegiate Athletes:A Cross-sectional study

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Journal of science in sport and Exercise 2023年第4期5卷 360-368页

作者： Yuko morita Taeko sasai-sakuma Institute of Arts and sciences Tokyo University of Science6-3-1NiijukuKatsushika-kuTokyo 125-8585Japan Department of Clinical Laboratory science Faculty of Medical TechnologyTeikyo University2-11-1KagaItabashi-kuTokyo 173-8605Japan

Purpose This study investigated the optimal total sleep duration per day required by collegiate athletes to maintain the physical and mental health-related quality of life(HRQOL),compared with non-athlete *** In this cross-sectional study,a questionnaire survey was conducted to assess demographic variables,lifestyle and sleep habits,and HRQOL in 392 collegiate students(non-athletes,n=174;athletes,n=218).Physical component summary(PCs)and mental component summary(MCs)were assessed using the short-form-8 health *** with both good PCs and MCs were defined as having a good *** confirm an association between the total sleep duration per day and good HRQOL,logistic regression analyses were conducted in non-athlete students and collegiate athletes ***,receiver-operating curve(ROC)analyses were performed for the detection of the cut-off point of total sleep duration per day sufficient to maintain a good *** The average total sleep duration per day was 7 h 19 min for collegiate athletes,and 78.9%of them had a worse *** cut-off point of total sleep duration per day to maintain good HRQOL for collegiate athletes was 7.92 h(area under ROC,0.64;P=0.038;sensitivity,75.4%;specificity,57.9%),which was longer than 6.79 h for non-athlete *** Collegiate athletes required longer nocturnal sleep than non-athlete ***,their habitual nocturnal sleep duration was shorter compared to their optimal duration;around 70%of them faced chronic insufficient *** sleep habits and sleep education is important in maintaining their good health-related quality of life.

关键词： Athlete sleep duration Health-related quality of life Insufficient sleep

Vascular endothelial growth factor:a double-edged sword in the development of white matter lesions

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Neural Regeneration Research 2025年第1期20卷 191-192页

作者： Narek Manukjan Daniel Fulton Zubair Ahmed WMatthijs Blankesteijn sébastien Foulquier Department of Pharmacology and Toxicology Maastricht UniversityMaastrichtThe Netherlands CARIM-school for Cardiovascular Diseases Maastricht UniversityMaastrichtThe Netherlands Neuroscience and Ophthalmology Institute of Inflammation and AgeingUniversity of BirminghamEdgbastonBirminghamUK Centre for Trauma sciences Research University of BirminghamEdgbastonBirminghamUK MHeNs-school for Mental Health and Neuroscience Maastricht UniversityMaastrichtThe Netherlands Department of Neurology Maastricht University Medical CenterMaastrichtThe Netherlands

As the population ages,the burden of age-related diseases becomes ***,over 55 million people suffer from dementia worldwide,with Alzheimer’s disease being the most common ***,it is becoming clearer that underlying vascular pathology such as cerebral small vessel disease(csVD)may be a more detrimental cause for dementia(Cuadrado-Godia et al.,2018).It is estimated that 10%-30%of the elderly population and 35%-90%of all dementia patients exhibit signs of *** term csVD refers to pathology affecting the small vessels of the brain,which can lead to lacunar cerebral infarcts,enlarged perivascular spaces,and cortical hemorrhages(Cuadrado-Godia et al.,2018).CsVD is often associated with cognitive decline,gait problems,and dementia(Cuadrado-Godia et al.,2018).

关键词： pathology becoming white

solution of Laplace’s Differential Equation and Fractional Differential Equation of That Type

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Applied Mathematics 2013年第11期4卷 26-36页

作者： Tohru morita Ken-ichi sato College of Engineering Nihon University Koriyama Japan Tohoku University Sendai Japan

In a preceding paper, we discussed the solution of Laplace’s differential equation by using operational calculus in the framework of distribution theory. We there studied the solution of that differential equation with an inhomogeneous term, and also a fractional differential equation of the type of Laplace’s differential equation. We there considered derivatives of a function on , when is locally integrable on , and the integral converges. We now discard the last condition that should converge, and discuss the same problem. In Appendices, polynomial form of particular solutions are given for the differential equations studied and Hermite’s differential equation with special inhomogeneous terms.

关键词： Laplace’s Differential Equation Kummer’s Differential Equation Fractional Differential Equation Distribution Theory Operational Calculus Inhomogeneous Equation Polynomial solution

successful treatment with rifampin for fulminant antibiotics-associated colitis in a patient with non-Hodgkin's lymphoma

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World Journal of Gastroenterology 2004年第5期10卷 765-766页

作者： Kenichi Nomura Yosuke Matsumoto Naohisa Yoshida sawako Taji Naoki Wakabayashi shoji Mitsufuji shigeo Horiike Masuji morita Takeshi Okanoue Masafumi Taniwaki Molecular Hematology and Oncology Kyoto Prefectural University of Medicine Graduate School of Medical ScienceKyotoJapan Molecular Gastroenterology and Hepatology Kyoto Prefectural University of Medicine Graduate School of Medical ScienceKyotoJapan school of Nursing Kyoto Prefectural University of Medicine Graduate School of Medical ScienceKyotoJapan Clinical Molecular Genetics and Laboratory Medicine Kyoto Prefectural University of Medicine Graduate School of Medical ScienceKyotoJapan

A 74-year-old man was admitted to the hospital because of chemotherapy for relapsed non-Hodgkin's lymphoma (NHL).The patient became febrile and experienced diarrhea after chemotherapy. Although ceftazidime and amikacin sulfate were administered as empiric therapy, diarrhea was *** several days, stool cytotoxin assay for clostridium difficile (C. difficile) was positive and he was diagnosed as having antibiotics-associated colitis (AAC). Although antibiotics were discontinued and both oral vancomycin and metronidazole were administrated, disease was not improved. To rule out the presence of an additional cause of diarrhea, colon fiberoscopic examination was performed. It revealed multiple deep ulcerative lesions at right side colon, surface erosive and minute erosive lesions in all continuous *** were not seen. These findings are compatible with AAC without pseudomembranes. There are no reports that the rifampin is effective on refractory ***, we administered oral rifampin for the current *** reasons are 1) conventional antibiotics were not effective,2) rifampin has excellent in vitro activity against C. difficile,and 3) the efficacy of rifampin on relapsing colitis due to *** is established. After administration of rifampin, fever alleviated and diarrhea was improved. Because AAC may result in significant mortality, patients with refractory or fulminant AAC should be treated with oral rifampin from outset.

关键词：暴发性抗生素相关性大肠炎利福平非何杰金氏淋巴瘤抗药性羧形菌病例报告

Remarks on the solution of Laplace’s Differential Equation and Fractional Differential Equation of That Type

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Applied Mathematics 2013年第11期4卷 13-21页

作者： Tohru morita Ken-ichi sato College of Engineering Nihon University Koriyama Japan Tohoku University Sendai Japan

We discuss the solution of Laplace’s differential equation by using operational calculus in the framework of distribution theory. We here study the solution of that differential Equation with an inhomogeneous term, a... 详细信息

关键词： Laplace’s Differential Equation Kummer’s Differential Equation Fractional Differential Equation Inhomogeneous Equation Distribution Theory Operational Calculus

Experimental study on Latent Heat storage Characteristics of W/O Emulsion-supercooling Rate of Dispersed Water Drops by Direct Contact Heat Exchange

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Journal of Thermal science 2013年第2期22卷 145-151页

作者： shin-ichi morita Yasutaka Hayamizu Akihiko Horibe Naoto Haruki Hideo Inaba Department of Mechanical Engineering Yonago National College of Technology Graduate school of Natural science and Technology Okayama University Tsuyama National College of Technology

Recently, much attention has been paid to investigate the latent heat storage system. Using of ice heat storage system brings an equalization of electric power demand, because it will solved the electric -power-demand-concentration on day-time of summer by the air conditioning. The flowable latent heat storage material, Oil/Water type emulsion, microencapsulated latent heat material-water mixture or ice slurry, etc., is enable to transport the latent heat in a pipe. The flowable latent heat storage material can realize the pipe size reduction and system efficiency improvement. supercooling phenomenon of the dispersed latent heat storage material in continuous phase brings the obstruction of latent heat storage. The latent heat storage rates of dispersed water drops in W/O (Water/Oil) emulsion are investigated experimentally in this study. The water drops in emulsion has the diameter within 3 ~ 25μm, the averaged water drop diameter is 7.3μm and the standard deviation is 2.9μm. The direct contact heat exchange method is chosen as the phase change rate evaluation of water drops in W/O emulsion. The supercooled temperature and the cooling rate are set as parameters of this study. The evaluation is performed by comparison between the results of this study and the past research. The obtained experimental result is shown that the 35K or more degree from melting point brings 100% latent heat storage rate of W/O emulsion. It was clarified that the supercooling rate of dispersed water particles in emulsion shows the larger value than that of the bulk water.

关键词： Heat storage Latent Heat W/O Emulsion Direct Contact Heat Exchange

Experimental study of the Flow in Helical Circular Pipes:Torsion Effect on the Flow Velocity and Turbulence

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Journal of Thermal science 2008年第3期17卷 193-198页

作者： Yasutaka HAYAMIZU Kyoji YAMAMOTO shinichiroYANAsE Toru HYAKUTAKE Toru sHINOHARA shinichi morita Department of Mechanical Engineering Yonago National College of Technology Graduate school of Natural science and Technology Okayama University

An objective of the present paper is to experimentally clarify the torsion effect on the flow in helical circular pipes. We have made six helical circular pipes having different pitches and common non-dimensional curvature δ of about 0.1. The torsion parameter β0, which is defined by β0 = τ/（2δ）1/2 with non-dimensional torsion r, are taken to be 0.02, 0.45, 0.69, 1.01, 1.38 and 1.89 covering from small to very large pitch. The velocity distributions and the turbulence of the flow are measured using an X-type hot-wire anemometer in the range of the Reynolds number from 200 to 20000. The results obtained are summarized as follows： The mean secondary flow pattern in a cross section of the pipe changes from an ordinary twin-vortex type as is seen in a curved pipe without torsion （toroidal pipe） to a single vortex type after one of the twin-vortex gradually disappears as β0 increases. The circulation direction of the single vortex is the same as the direction of torsion of the pipe. The mean velocity distribution of the axial flow is similar to that of the toroidal pipe at small β0, but changes its shape as β0 increases, and attains the shape similar to that in a straight circular pipe when ,β0 = 1.89. It is also found that the critical Reynolds number, at which the flow shows a marginal behavior to turbulence, decreases as ,β0 increases for small ,β0, and then increases after taking a minimum at ,β0 ≈ 1.4 as ,β0 increases. The minimum of the critical Reynolds number experimentally obtained is about 400 at ,β0 ≈ 1.4.

关键词： Helical Circular Pipe Torsion Effect Critical Reynolds Number Turbulence

Combinatorial therapies for spinal cord injury repair

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Neural Regeneration Research 2025年第5期20卷 1293-1308页

作者： Carla s.sousa Andreia Monteiro António J.salgado Nuno A.silva Life and Health sciences Research Institute(ICVs) School of MedicineUniversity of MinhoCampus de Gualtar-gualtarBragaPortugal ICVs/3B’s Associate Lab PT Government Associated LabCampus de Gualtar-gualtarBragaPortugal

spinal cord injuries have profound detrimental effects on individuals, regardless of whether they are caused by trauma or non-traumatic events. The compromised regeneration of the spinal cord is primarily attributed to damaged neurons, inhibitory molecules, dysfunctional immune response, and glial scarring. Unfortunately, currently, there are no effective treatments available that can fully repair the spinal cord and improve functional outcomes. Nevertheless, numerous pre-clinical approaches have been studied for spinal cord injury recovery, including using biomaterials, cells, drugs, or technological-based strategies. Combinatorial treatments, which target various aspects of spinal cord injury pathophysiology, have been extensively tested in the last decade. These approaches aim to synergistically enhance repair processes by addressing various obstacles faced during spinal cord regeneration. Thus, this review intends to provide scientists and clinicians with an overview of pre-clinical combinatorial approaches that have been developed toward the solution of spinal cord regeneration as well as update the current knowledge about spinal cord injury pathophysiology with an emphasis on the current clinical management.

关键词： electric stimulation neural tissue regeneration neuroprotection polytherapy spinal cord injury