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Effect of Doped Alkali Metal Ions on the SO_(2) Capture Performance of MnO_(2) Desulfurization Materials at Low Temperature

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Journal of Renewable Materials 2021年第9期9卷 1541-1553页

作者： Xing Li Yugo Osaka Hongyu Huang takuya Tsujiguchi Akio Kodama Guangzhou Institute of Energy Conversion Chinese Academy of ScienceGuangzhou510640China School of Mechanical Engineering College of Science and EngineeringKanazawa UniversityKanazawa9201192Japan School of Mechanical and Power Engineering Nanjing Tech UniversityNanjing211800China

Sulfur dioxide(SO_(2))emissions from diesel exhaust pose a serious threat to the environment and human ***,desulfurization technology and the performance of desulfurization materials must be *** this study,MnO_(2) was modified with various alkali metal ions using the impregnation method to enhance its SO_(2) capture *** composites were characterized intensively by scanning electron microscopy,energydispersive X-ray spectroscopy,X-ray diffraction spectroscopy,and Brunauer-Emmett-Teller *** SO_(2) capture performance of these composites were measured via thermogravimetry,and the effect of doping with alkali metal ions on the SO_(2) capture performance of MnO_(2) was *** showed that the SO_(2) capture performance of MnO_(2) could be enhanced by doping with alkali metal ions,and the MnO_(2) composite doped with LiOH(2.0 mol/L)had the best SO_(2) capture capacity(124 mgSO_(2)/gMaterial),which was 18%higher than that of pure MnO_(2).Moreover,the type and concentration of alkali metal ions had varying effects on the SO_(2) capture performance of MnO_(2).In our experiment,the SO_(2) capture performance of the MnO_(2) doped with NaOH,LiCl,Na2CO3,K2CO3,and Li2CO3 composites were worse than that of pure MnO_(2).Therefore,the influences of the type and concentration of alkali metal ions to be doped into desulfurization materials must be considered comprehensively.

关键词： Sulfur dioxide capture desulfurization materials manganese dioxide alkali metal ions doped

GPI-Anchored Proteins Cooperate in the Long Journey of the Pollen Tube

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Molecular Plant 2020年第1期13卷 8-10页

作者： Shihao Su takuya T.Nagae Tetsuya Higashiyama Institu te of Transformative Bio-Molecules(WPI-ITbM) Nagoya UniversityFuro-choChikusa-kuNagoyaAichi 464-8601Japan Division of Biological Science Graduate School of ScienceNagoya UniversityFuro-choChikusa-kuNagoyaAichi 464-8602Japan Department of Biological Sciences Graduate School of ScienceThe University of TokyoTokyo 113-0033Japan

During the reproductive process of flowering plants, the pollen tube acts as a transportation carrier for two sperm cells, interacts with various female tissues, delivers the sperm to the ovule, and achieves double fertilization. Successful fertilization relies on fine growth control of the pollen tube tip in female tissues. This includes maintenance of pollen tube integrity in the pistil transmitting tract and the timing of rupture of the pollen tube when it reaches the female ovule ( Higashiyama, 2018 , Ge et al., 2019a ).

关键词： female GPI tube

Forearm compartment syndrome due to acquired hemophilia that required massive blood transfusions after fasciotomy:A case report

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World Journal of Clinical Cases 2021年第31期9卷 9592-9597页

作者： takuya Kameda Takeru Yokota Soichi Ejiri Shin-ichi Konno Department of Orthopaedic Surgery Fukushima Medical UniversityFukushima 960-1295FukushimaJapan Department of Hand and Limb Reconstructive Surgery Fukushima Medical UniversityFukushima 960-1295FukushimaJapan

BACKGROUND Acquired hemophilia is *** some cases,the bleeding in muscle causes compartment ***,it is not clear whether fasciotomy should be performed for the compartment syndrome caused by acquired hemophilia because of the risk of bleeding and the unknown functional *** SUMMARY A 75-year-old woman was admitted with severe pain of the right forearm with no preceding traumatic *** right forearm was obviously swollen,and stretch pain was *** hematomas were suspected in various parts of the *** pressure was 110 mmHg on the volar *** partial thromboplastin time(aPTT)was prolonged to 54.9 *** was performed,and hematoma was observed in the volar *** laboratory examinations revealed a low level of factor Ⅷ(FⅧ)activity(12.5%)and a high level of FⅧ inhibitor(15.2 bethesda units/mL).Acquired hemophilia A was *** recombinant clotting factors were administered,transfusion of red blood cells reached 46 units(140 mL/unit).Hemostasis was achieved 9 d after *** total cost of the clotting factor concentrates administered reached 28834600 *** prednisolone,FⅧ activity and aPTT recovered *** function of the hand was good in the index finger and excellent in the *** Fasciotomy resulted in good function of the hand in a case of non-traumatic compartment syndrome caused by acquired hemophilia,but life-threatening bleeding occurred,and the cost of clotting factor treatment was *** of sufficient blood transfusion,preoperative administration of recombinant activated clotting factor Ⅶ,and prompt fasciotomy could be ideal for such cases.

关键词： Acquired hemophilia Compartment syndrome Fasciotomy Bleeding Cost Case report

Diagnostic performance of endoscopic classifications for neoplastic lesions in patients with ulcerative colitis:A retrospective casecontrol study

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World Journal of Gastroenterology 2022年第10期28卷 1055-1066页

作者： Yuichi Kida Takeshi Yamamura Keiko Maeda Tsunaki Sawada Eri Ishikawa Yasuyuki Mizutani Naomi Kakushima Kazuhiro Furukawa takuya Ishikawa Eizaburo Ohno Hiroki Kawashima Masanao Nakamura Masatoshi Ishigami Mitsuhiro Fujishiro Department of Gastroenterology and Hepatology Nagoya University Graduate School of MedicineNagoya 466-8550AichiJapan Department of Endoscopy Nagoya University HospitalNagoya 466-8560AichiJapan Department of Gastroenterology Graduate School of MedicineThe University of TokyoTokyo 113-8655Japan

BACKGROUND It is unclear whether the Japan Narrow-Band Imaging Expert Team(JNET)classification and pit pattern classification are applicable for diagnosing neoplastic lesions in patients with ulcerative colitis(UC).AIM To clarify the diagnostic performance of these classifications for neoplastic lesions in patients with *** This study was conducted as a single-center,retrospective case-control ***-one lesions in 19 patients with UC-associated neoplasms(UCAN)and 23 lesions in 22 UC patients with sporadic neoplasms(SN),evaluated by magnifying image-enhanced endoscopy,were retrospectively and separately assessed by six endoscopists(three experts,three non-experts),using the JNET and pit pattern *** results were compared with the pathological diagnoses to evaluate the diagnostic ***-and intra-observer agreements were *** In this study,JNET type 2 A and pit pattern typeⅢ/Ⅳwere used as indicators of low-grade dysplasia,JNET type 2 B and pit pattern typeⅥlow irregularity were used as indicators of highgrade dysplasia to shallow submucosal invasive carcinoma,JNET type 3 and pit pattern typeⅥhigh irregularity/VN were used as indicators of deep submucosal invasive *** the UCAN group,JNET type 2 A and pit pattern typeⅢ/Ⅳhad a low positive predictive value(PPV;50.0%and 40.0%,respectively);however,they had a high negative predictive value(NPV;94.7%and 100%,respectively).Conversely,in the SN group,JNET type 2 A and pit pattern typeⅢ/Ⅳhad a high PPV(100%for both)but a low NPV(63.6%and 77.8%,respectively).In both groups,JNET type 3 and pit pattern typeⅥ-high irregularity/VN showed high *** interobserver agreement of JNET classification and pit pattern classification for UCAN among experts were 0.401 and 0.364,in the same manner for SN,0.666 and 0.597,*** intra-observer agreements of JNET classification and pit pattern classification for UCAN among experts were 0.387,0.454,for SN,0.803 and

关键词： Diagnostic performance Japan Narrow-Band Imaging Expert Team classification Pit pattern classification Sporadic neoplasms Ulcerative colitis Ulcerative colitis-associated neoplasms

Birth after intracytoplasmic sperm injection of ejaculated spermatozoa from a man with mosaic Klinefelter's syndrome

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Asian Journal of Andrology 2005年第2期7卷 217-220,页

作者： takuya Akashi Hideki Fuse Yasuo Kojima Mikiko Hayashi Sachiko Honda Department of Urology Faculty of MedicineToyama Medical and Pharmaceutical UniversityToyamaJapan Department of Obsterics and Gynecology Toyama Prefectural Central HospitalToyamaJapan Toyama Institute of Health ToyamaJapan

Aim:To report a birth after intracytoplasmic sperm injection (ICSI) of ejaculated spermatozoa from a man with mosaic Klinefelter's syndrome detected by fluorescence in situ hybridization (FISH) ***:A 35-year- old man with a normal appearance consulted our hospital because of sterility over a 5-year *** analysis showed low-incidence mosaic Klinefelter's *** FISH,96 % hyperploidy of the lymphocytes was *** examined the sex chromosome of the ejaculated *** FISH,we examined 200 ejacu- lated spermatozoa and no hyperploidy was ***:The 33-year-old female partner of the male patient underwent an uncomplicated controlled ovarian hyperstimulation sequence using a combined recombinant-follicle stimulating hormone (rec-FSH) + human menopausal gonadotrophin (hMG) protocol,following late luteal phase pituitary down *** culminated in the retrieval of seven oocytes,six of which were fertilized with ICSI. One ICSI attempt led to clinical pregnancy with a healthy baby ***:We report a male patient with low- incidence mosaic Klinefelter's syndrome whose ejaculated spermatozoa were identified as being haploid by FISH before ICSI,leading to the successful pregnancy of his wife and the birth of a healthy baby girl.

关键词： Klinefelter's syndrome intracytoplasmic sperm injection fluorescence in situ hybridization

Structure of Periodic Flows through a Channel with a Suddenly Expanded and Contracted Part

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Open Journal of Fluid Dynamics 2023年第S1期13卷 232-249页

作者： takuya Masuda Toshio Tagawa Miah Md. Ashraful Alam Yasutaka Hayamizu Department of Integrated Engineering National Institute of Technology Yonago College Tottori Japan Department of Aeronautics and Astronautics Tokyo Metropolitan University Tokyo Japan Department of Mechanical Engineering for Transportation Faculty of Engineering Osaka Sangyo University Osaka Japan

With respect to flows in a two-dimensional sudden expansion and contraction channel having a pair of cavities, numerical simulation was performed by imposing inlet/outlet boundary conditions giving a velocity distribution to the inlet. Periodic flows have been reproduced, which have a discrete spectrum about frequency. A fundamental wave occupies most part of the disturbance components, but higher harmonic waves are also included. The disturbance is excited by Kelvin-Helmholtz instability in a cavity section, where only the fundamental wave is generated. A wavenumber is regulated by a channel length under a periodic boundary condition, but there is no restriction in a main flow direction under the inlet/outlet boundary conditions, and therefore, some wavenumbers can occur. Therefore, an arbitrary frequency component of disturbance is a synthesized wave composed of various wave numbers. There are two kinds of components constituting this synthesized wave: a maximum of a velocity distribution is near a wall and in the center of the channel, which are called as wall mode and central mode in linear stability analysis of the plane Poiseuille flow. The synthesized wave composed of some modes shows a tendency to lower wavenumbers at the center of the channel.

关键词： Frequency Spectrum Harmonic Wave Number Phase Velocity Superposition Eigenfunction Profile

Effectiveness and safety of chemotherapy for patients with malignant gastrointestinal obstruction:A Japanese populationbased cohort study

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World Journal of Clinical Cases 2022年第16期10卷 5253-5265页

作者： Gota Fujisawa Ryota Niikura takuya Kawahara Tetsuro Honda Kenkei Hasatani Naohiro Yoshida Tsutomu Nishida Tetsuya Sumiyoshi Shu Kiyotoki Takashi Ikeya Masahiro Arai Yoku Hayakawa Takashi Kawai Mitsuhiro Fujishiro Department of Gastroenterology Graduate school of MedicineThe University of TokyoTokyo 1138655Japan Gastroenterological Endoscopy Tokyo Medical UniversityTokyo 1600023Japan Clinical Research Support Center The University of Tokyo HospitalTokyo 1138655Japan Department of Gastroenterology Nagasaki Harbor Medical CenterNagasaki 8508555Japan Department of Gastroenterology Fukui Prefectural HospitalFukui 9108526Japan Department of Gastroenterology Ishikawa Prefectural Central HospitalIshikawa 9208530Japan Department of Gastroenterology Toyonaka Municipal HospitalOsaka 5608565Japan Department of Gastroenterology Tonan HospitalHokkaido 0600004Japan Department of Gastroenterology Shuto General HospitalYamaguchi 7420032Japan Department of Gastroenterology St.Luke's International HospitalTokyo 1048560Japan Department of Gastroenterology Nerima Hikarigaoka HospitalTokyo 1790072Japan

BACKGROUND The impacts of chemotherapy on patients with malignant gastrointestinal obstructions remain unclear,and multicenter evidence is *** To evaluate the effectiveness and safety of chemotherapy in patients with unresectable malignant gastrointestinal *** We conducted a multicenter retrospective cohort study that compared the chemotherapy group who received any chemotherapeutics after interventions,including palliative surgery or selfexpandable metal stent placement,for unresectable malignant gastrointestinal obstruction vs the best supportive care(BSC)group between 2014 and 2019 in nine *** primary outcome was overall survival,and the secondary outcomes were patency duration and adverse events,including gastrointestinal perforation and gastrointestinal *** In total,470 patients in the chemotherapy group and 652 patients in the BSC group were *** the follow-up period of 54.1 mo,the median overall survival durations were 19.3 mo in the chemotherapy group and 5.4 mo in the BSC group(log-rank test,P<0.01).The median patency durations were 9.7 mo[95% confidence interval(CI):7.7-11.5 mo]in the chemotherapy group and 2.5 mo(95%CI:2.0-2.9 mo)in the BSC group(log-rank test,P<0.01).The perforation rate was 1.3%(6/470)in the chemotherapy group and 0.9%(6/652)in the BSC group(P=0.567).The gastrointestinal bleeding rate was 1.5%(7/470)in the chemotherapy group and 0.5%(3/652)in the BSC group(P=0.105).CONCLUSION Chemotherapy after interventions for unresectable malignant gastrointestinal obstruction was associated with increased overall survival and patency duration.

关键词： Gastrointestinal cancer Chemotherapy Malignant gastrointestinal obstruction Self-expandable metal stent Palliative surgery

Ge quantum dots light-emitting devices

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Frontiers of Optoelectronics 2012年第1期5卷 13-20页

作者： Jinsong XIA takuya MARUIZUMI Yasuhiro SHIRAKI Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China Advance Research Laboratories Tokyo City UniversityTokyo 158-0082Japan

Si photonics becomes one of the research focuses in the field of photonics. Si-based light-emitting devices are one of the most important devices in this field. In this paper, we review the Si-based light-emitting devices fabricated by embedding Ge self-assembled quantum dots into optical microcavities. Ge self-assembled quantum dots emit light in the telecommunication wavelength range from 1.3 to 1.6 pro, for which Si is transparent. Ge self- assembled quantum dots were grown on silicon-on- insulator （SOI） by molecular beam epitaxy （MBE） in Stranski-Krastanov （S-K） mode. Then, electron beam lithography （EBL） was used to define the pattern of optical microcavities on the wafer. Finally, the pattern was transferred onto the Si/Ge slab by inductive coupled plasma （ICP） dry etching. Room-temperature photolumi- nescence （PL） was used to characterize the light-emitting properties of fabricated devices. The results showed that strong resonant light emission was observed in different optical microcavities. Significant enhancement of the intensity was obtained by the optical resonance. Based on the results of PL, we designed and fabricated current- injected light-emitting devices based on Ge self-assembled quantum dots in optical microcavities. Room-temperature resonant light emission was observed from Ge dots in a 3.8 μm microdisk resonator.

关键词： Si-based light-emitting devices Ge self-assembled quantum dots microcavities photonic crystal(PhC) microdisk

Proliferation of district heating using local energy resources through strategic building-stock management： A case study in Fukushima, Japan

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Frontiers in Energy 2018年第3期12卷 411-425页

作者： Yi DOU Keijiro OKUOKA Minoru FUJII Hiroki TANIKAWA Tsuyoshi FUJITA takuya TOGAWA Liang DONG Center for Social and Environmental Systems Research NationalInstitute for Environmental Studies (NIES) 16-20nogawa TsukubaIbaraki 305-8506 Japan Graduate School of Environmental Studies Nagoya University Furo-cho Chikusa-ku Nagoya 464-8601 Japan Graduate School of Environmental Studies Nagoya University Furocho Chikusa-ku Nagoya 464-8601 Japan Center for Social and Environmental Systems Research NationalInstitute for Environmental Studies (NIES) 16-20nogawa TsukubaIbaraki 305-8506 Japan Fukushima Branch National Institute for Environmental Studies (NIES)10-2 Fukasaku Miharu-machi Tamura-gun Fukushima 963-7707Japan Center for Social and Environmental Systems Research NationalInstitute for Environmental Studies (NIES) 16-2 Onogawa TsukubaIbaraki 305-8506 Japan CML Leiden University Leiden the Nether-lands

District heating systems using cogeneration technology and renewable resources are considered as an effective approach to resources conservation and reduction of greenhouse gas （GHG） emissions. However, wide- spread aging and depopulation problems, as well as the popularization of energy-saving technologies in buildings, are estimated to greatly decrease energy consumption, leading to inefficiency in district heating and barriers to technology proliferation. From a long-term perspective, land use changes, especially the progression of compact city plans, have the potential to offset the decrement in energy consumption that maintains the efficiency of district heating systems. An integrated model is developed in this paper based on building cohort analysis to evaluate the economic feasibility and environmental impact of introdu- cing district heating systems to a long-term compact city plan. As applied to a case in the Soma Region of Fukushima, Japan, potential migration from the suburbs to the central station districts is simulated, where district heating based on gas-fired cogeneration is expected to be introduced. The results indicate that guided migration to produce concentrated centers of population can substan- tially increase the heat demand density, which supports a wider application of district heating systems and better low-carbon performance. These results are further dis- cussed in relation to technology innovation and related policies. It is concluded that policies related to urban land use planning and energy management should be integrated and quantitatively evaluated over the long-term with the aim of supporting urban low-carbon sustainable develop- ment.

关键词： building stock compact city district beating energy use Fukushima