检索结果-南通市图书馆

Fuel Gas Production from Biomass Sources by Radio Frequency In-Liquid Plasma Method

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Power and Energy Engineering 2015年第8期3卷 28-35页

作者： Ismail Rahim Shinfuku Nomura Shinobu Mukasa hiromichi toyota Katsunori Kawanishi Yoshihiko Makiura Kazuhiko Kogoh Kunihiro Ohshima Susumu Katsuen Department of Engineering for Production and Environment Graduate School of Science and Engineering Ehime University Ehime Japan Department of Automotive Engineering Education State University of Makassar Makassar Indonesia KURABO Industries Ltd. Neyagawa Japan

Cellulose is a kind of saccharide that is the main component in cell walls of plants and therefore is the organic compound that exists in the largest amount in nature. The purpose of this experiment is to convert cellulose to a fuel. Radio frequency (RF) in-liquid plasma is generated in a cellulose distributed solution and a glucose solution, and the generation gas rate is measured. While hydrogen is the main gas generated by the plasma breakdown, carbon monoxide, carbon dioxide, and low-grade flammable gases are also produced. In the glucose water solution or the glucose distributed solution, the solution itself evaporates and decomposes inside the plasma but since the saccharides are non-volatile, they cannot penetrate into the plasma and are not decomposition. However, when the cellulose is at concentrations of 30 wt% or more, it becomes granular and can directly enter the plasma as a solid, where the plasma decomposes the cellulose itself, significantly increasing the amount of gas generated. In addition, the spectrometry of the plasma emission shows the solution after the creation of plasma has the ability to absorb ultraviolet light.

关键词： In-Liquid Plasma Radio Frequency Plasma Saccharide Hydrogen Decomposition

Positive Effect of Transcranial Direct Current Stimulation on Visual Verbal Working Memory in Patients with Attention-Deficit/Hyperactivity Disorder

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Psychiatry 2024年第4期14卷 334-346页

作者： Tomoko Uchida Daisuke Matsuzawa Tadashi Shiohama Katsunori Fujii Akihiro Shiina Masamitsu Naka Katsuo Sugita Eiji Shimizu Naoki Shimojo hiromichi Hamada Department of Pediatrics Graduate School of Medicine Chiba University Chiba Japan Research Center for Child Mental Development Chiba University Chiba Japan Division of Medical Care and Treatment Center for Forensic Mental Health Chiba University Chiba Japan Department of Cognitive Behavioral Physiology Graduate School of Medicine Chiba University Chiba Japan

Background: Working memory is an executive function that plays an important role in many aspects of daily life, and its impairment in patients with attention-deficit/hyperactivity disorder (ADHD) affects quality of life. The dorsolateral prefrontal cortex (DLPFC) has been a good target site for transcranial direct current stimulation (tDCS) due to its intense involvement in working memory. In our 2018 study, tDCS improved visual-verbal working memory in healthy subjects. Objective: This study examines the effects of tDCS on ADHD patients, particularly on verbal working memory. Methods: We conducted an experiment involving verbal working memory of two modalities, visual and auditory, and a sustained attention task that could affect working memory in 9 ADHD patients. Active or sham tDCS was applied to the left DLPFC in a single-blind crossover design. Results: tDCS significantly improved the accuracy of visual-verbal working memory. In contrast, tDCS did not affect auditory-verbal working memory and sustained attention. Conclusion: tDCS to the left DLPFC improved visual-verbal working memory in ADHD patients, with important implications for potential ADHD treatments.

关键词： Working Memory Attention-Deficit/Hyperactivity Disorder Dorsolateral Prefrontal Cortex Transcranial Direct Current Stimulation

A Novel Method for Producing Hydrogen from a Hydrocarbon Liquid Using Microwave In-liquid Plasma

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy and Power Engineering 2016年第6期10卷 335-342页

作者： Andi Amijoyo Mochtar Shinfuku Nomura Shinobu Mukasa hiromichi toyota Kohji Kawamukai Kojiro Uegaito Fadhli Syahrial Graduate School of Science and Engineering Ehime University Ehime 791-8577 Japan Mechanical Engineering Department Hasanuddin University Makassar 90245 Indonesia Center for Advanced Research on Energy University Teknikal Malaysia Melaka Melaka 76100 Malaysia

The in-liquid plasma method is a technology in which plasma of several thousand degrees Kelvin is generated within bubbles in a liquid. The purpose of this study is to enhance the hydrogen production rate from waste oils by using in-liquid plasma. Two types of microwave in-liquid plasma apparatus are adopted for hydrogen production. One is a conventional MW (microwave) oven, the other is a microwave generator with a waveguide to apply the in-liquid plasma steam reforming method in n-dodecane. The produced gas is 58%-90% hydrogen in these methods. The hydrogen production rate is improved by stabilization of the bubble growth. The gas production rate by plasma feeding steam in n-dodecane is 1.4 times higher than that without feeding steam.

关键词：等离子体法微波炉液体制氢制备等离子体装置蒸汽重整气泡生长

Neoadjuvant therapy for resectable pancreatic cancers

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hepatobiliary Surgery and Nutrition 2022年第4期11卷 583-585页

作者： Yosuke Inoue hiromichi Ito Yu Takahashi Division of Hepato-Biliary-Pancreatic Surgery Cancer Institute HospitalJapanese Foundation for Cancer ResearchTokyoJapan

Pancreatic cancer(PC)is a potentially systemic disease with more diverse biology than generally *** present,surgical resection is the only curative therapy available for patients with PC,and its indications have long been discussed based on anatomical resectability.A recent consensus recommends neoadjuvant therapy(NAT)for anatomically borderline resectable(BR)cancers(1)as well as induction therapy for unresectable locally advanced(UR-LA)or metastatic(UR-M)cancers.

关键词： cancers therapy curative

Morphology and gene expression of sex‐determining region Y‐box 9 and runt‐related transcription factor 2 in centrifugally compressed cell collagen‐combined constructs (C^(6))

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Biosurface and Biotribology 2023年第3期9卷 78-83页

作者： Xu Ye Masashi Yamazaki Wataru Ando Norimasa Nakamura hiromichi Fujie Faculty of System Design Tokyo Metropolitan UniversityTokyoJapan Research Center for Medicine‐Engineering Collaboration TokyoJapan Department of Orthopaedic Surgery Kansai Rosai HospitalAmagasakiJapan Department of Orthopaedic Surgery Osaka University Graduate School of MedicineSuitaJapan Institute for Medical Science in Sports Osaka Health Science UniversityOsakaJapan Center for Advanced Medical Engineering and Informatics Osaka UniversitySuitaJapan

The authors previously developed a scaffold‐free tissue‐engineered construct(TEC)from mesenchymal stem cells(MSCs).Although the TEC exhibited even cell distribution and was successfully applied for cartilage repair in animal models,it is unsuitable for relatively large‐scale cartilage defects due to its small *** solve the problem,the authors recently developed a novel biomaterial,a centrifugally compressed cell‐collagen combined construct(C^(6))from a mixture of MSCs and atelocollagen,both of which are subjected to *** results of the previous study indicated that C^(6) exhibited high cell viability(70%)and sufficient cell distribution similar to that of the *** the present study,the morphology and gene expression of C^(6) were *** ex-amination indicated that C6 is six times thicker(approximately 1 mm)than the TEC after a 7‐day *** C^(6) remained unchanged in scale with increased cell density after a 21‐day *** electron microscopic observation indicated that C^(6) exhibited interconnected and porous microstructures,while the TEC had close‐knit *** transcriptase‐polymerase chain reaction analysis indicated that the expression of sex‐determining region Y‐box 9 and runt‐related transcription factor 2 was significantly higher in C^(6) than that in TEC.

关键词： biomaterials cartilage microstructures

Rikkunshito increases peripheral incretin-hormone levels in humans and rats

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Methodology 2024年第1期14卷 102-113页

作者： Hiroshi Kono Shinji Furuya Hidenori Akaike Katsutoshi Shoda Yoshihiko Kawaguchi Hidetake Amemiya hiromichi Kawaida Daisuke Ichikawa The First Department of Surgery University of YamanashiChuoYamanashi 409-3898Japan

BACKGROUND It was reported that rikkunshito(TJ-43)improved the cisplatin-induced decreases in the active form of ghrelin in plasma;however,other effects on gastrointestinal hormones have not been *** To investigate the effects of TJ-43 on peripheral levels of incretin hormones,including gastric inhibitory polypeptide(GIP)and glucagon-like polypeptide-1(GLP-1),in humans and *** Patients were divided into two groups,namely patients who received TJ-43 immediately following surgery[TJ-43(+)group]and those who received TJ-43 on postoperative day 21[TJ-43(-)group],and the plasma levels of active GIP and active GLP-1 were *** animal experiments,rats were treated with TJ-43[rat(r)TJ-43(+)group]or without[rTJ-43(−)group]by gavage for 4 wk,and the plasma active GIP and active GLP-1 levels were *** expression of incretin hormones in the gastrointestinal tract and insulin in the pancreas were investigated by ***,the cyclic adenosine monophosphate activities were assessed in pancreatic tissues from rats treated with or without TJ-43 in vivo,and the blood glucose levels and plasma insulin levels were measured in rats treated with or without TJ-43 in oral glucose tolerance *** In humans,the active incretin hormone levels increased,and values were significantly greater in the TJ-43(+)group compared those in the TJ-43(-)*** rats,the plasma active incretin levels significantly increased in the rTJ-43(+)group compared with those in the rTJ-43(-)*** and GLP-1 expressions were enhanced by TJ-43 ***,plasma insulin levels increased and blood glucose levels were blunted in the rTJ-43(+)*** The results show that TJ-43 may be beneficial for patients who undergo pancreatic surgery.

关键词： Incretin hormone Japanese traditional herbal medicine Gastric inhibitory polypeptide Glucagon-like polypeptide-1 Islet cells Insulin

Carbon nanotube-dependent synthesis of armchair graphene nanoribbons

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2022年第3期15卷 1709-1714页

作者： Yifan Zhang Kecheng Cao Takeshi Saito hiromichi Kataura Hans Kuzmany Thomas Pichler Ute Kaiser Guowei Yang Lei Shi State Key Laboratory of Optoelectronic Materials and Technologies Nanotechnology Research CenterGuangzhou Key Laboratory of Flexible Electronic Materials and Wearable DevicesSchool of Materials Science and EngineeringSun Yat-sen UniversityGuangzhou 510275China Central Facility for Electron Microscopy Electron Microscopy Group of Materials ScienceUlm UniversityUlm 89081Germany School of Physical Science and Technology Shanghai Tech UniversityShanghai 201210China Nanomaterials Research Institute National Institute of Advanced Industrial Science and TechnologyTsukuba 305-8565Japan Faculty of Physics University of ViennaVienna 1090-AAustria

Sub-nanometer armchair graphene nanoribbons(GNRs)with moderate band gap have great potential towards novel *** can be synthesized in the confined tubular space of single-walled carbon nanotubes(SWCNTs),in which precursor molecules have been specifically designed to form the GNRs with certain width and ***,it is still unexplored how the diameter and metallicity of SWCNTs influence the synthesis of the ***,we applied a series of SWCNTs with different average diameters to study the diameter-dependent synthesis of *** using Raman spectroscopy and transmission electron microscopy,we found that the width of the GNRs can be tailored by the diameter of the ***,the SWCNTs with average diameter of 1.3 nm produced 6 and 7 armchair GNRs with the highest yield,which can be well explained by considering the width of the GNRs and van der Waals radius of hydrogen and carbon *** addition,semiconducting and metallic SWCNTs produced GNRs with different yields,which could attribute to different diameter distributions and density of *** results enable the possibility of a high-yield production of certain armchair graphene nanoribbons in large scale,which would benefit future applications as semiconductor with sub-nanometer in width.

关键词： armchair graphene nanoribbons single-walled carbon nanotubes Raman spectroscopy diameter dependence metallicity dependence

Evaluation of microstructure and creep damage in high-Cr ferritic steel welds

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 2011年第3期24卷 225-234页

作者： Masaaki TABUCHI hiromichi HONGO National Institute for Materials Science

11Cr-0.4Mo-2W-CuVNb steel （ASME Gr.122） is used for boiler components in ultra- supercritical （USC） thermal power plants. The creep strength of high-Cr steel welds decreases due to the formation of Type IV creep damage in the heat-affected zone （HAZ） during long-term use at high temperatures. In the present study, the processes and mechanisms of Type Ⅳ creep damage were elucidated by investigating the long-term creep strength, microstructure and damage behavior of Gr.122 steel welds. Creep tests using thick welded joints were interrupted at several time steps, and the initiation, evolution and distribution of creep damage were measured. It was found that the formation and growth of creep damage was suppressed during the steady- state stage; creep voids formed at 0.5 of life, and coalesced to form a crack after 0.9 of life. Type IV creep damage was mostly observed in the area about 30% below the surface of the plate. Differences in creep damage behavior between Gr.122 and Gr.91 steel welds were examined. Experimental creep damage distribution was compared with computed versions using the finite element method and damage mechanics.

关键词： Gr.122 steel Welded joint Creep void Type Ⅳ damage Finite element method Damage mechanics

Ultrastructural changes in porcine liver sinusoidal endothelial cells of machine perfused liver donated after cardiac death

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2022年第19期28卷 2100-2111页

作者： Hiroki Bochimoto Yo Ishihara Nur Khatijah Mohd Zin Hiroyoshi Iwata Daisuke Kondoh hiromichi Obara Naoto Matsuno Department of Cell Physiology The Jikei University School of MedicineMinato-ku 105-8461TokyoJapan Department of Transplantation Technology and Therapeutic Development Asahikawa Medical UniversityAsahikawa 078-8510HokkaidoJapan Department of Surgery Asahikawa Medical UniversityAsahikawa 078-8510HokkaidoJapan Laboratory of Veterinary Anatomy Obihiro University of Agriculture and Veterinary MedicineObihiro 080-8555HokkaidoJapan Department of Mechanical Engineering Tokyo Metropolitan UniversityHachioji 192-0397TokyoJapan

BACKGROUND The machine perfusion(MP)preservation including hypothermic MP(HMP)and midthermic MP(MMP)has been considered as a promising strategy to preserve the functions of liver donated after cardiac *** importance of understanding liver sinusoidal endothelial cells(LSEC)damage in regulating liver injury during MP has been ***,the ultrastructural changes in the LSEC and sinusoids around them after MP are *** To investigate the ultrastructural changes in the LSEC and sinusoids around them after *** Porcine liver grafts undergo a warm ischemia time of 60 minutes perfused for 4 h with modified University of Wisconsin gluconate *** A grafts were preserved with HMP at 8℃ constantly for 4 *** B grafts were preserved with a rewarming solution at 22℃ by MMP for 4 *** the ultrastructural changes in the LSEC and sinusoids in Group A and B were comparatively analyzed by using osmium-maceration scanning electron microscopy with complementary transmission electron microscopy *** An analysis of the LSEC after warm ischemia revealed that mitochondria with condensed-shaped cristae,abnormal vesicles,reduction of ribosomes and the endoplasmic reticulum(ER)surround the mitochondria *** MP subsequent after warm ischemia alleviate the abnormal vesicles and reduction of ribosomes in LSEC,which indicated the reduction of the ER ***,MMP could restore the tubular mitochondrial cristae,while after HMP the condensed and narrow mitochondrial cristae *** addition,the volume of the sinusoidal space in the liver grafts after MMP were restored,which indicated a lower risk of pressure injury than *** MMP alleviates the ER damage of LSEC by warm ischemia,additionally restore the metabolism of LSEC via the normalization of mitochondria and prevent the share stress damage of liver grafts.

关键词： Liver Sinusoidal endothelial cells Warm ischemia Machine perfusion preservation Transplantation Ultrastructure