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Modeling three-dimensional forest structures to drive canopy radiative transfer simulations of bidirectional reflectance factor

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International Journal of Digital Earth 2018年第10期11卷 981-1000页

作者： Wei Yang Hideki Kobayashi Xuehong Chen Kenlo Nishida Nasahara Rikie Suzuki akihiko Kondoh Center for Environmental Remote Sensing Chiba UniversityChibaJapan Department of Environmental Geochemical Cycle Research Japan Agency for Marine-Earth Science and TechnologyYokohamaJapan State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal UniversityBeijingPeople’s Republic of China Faculty of Life and Environmental Sciences University of TsukubaTsukubaJapan

Three-dimensional(3-D)Monte Carlo-based radiative transfer(MCRT)models are usually used for benchmarking in intercomparisons of the canopy radiative transfer(RT)***,the 3-D MCRT models are rarely applied to develop remote sensing algorithms to estimate essential climate variables of forests,due mainly to the difficulties in obtaining realistic stand structures for different forest biomes over regional to global ***,some of important tree structure parameters such as canopy height and tree density distribution have been available *** enables to run the intermediate complexities of the 3-D MCRT *** consequently developed a statistical approach to generate forest structures with intermediate complexities depending on the inputs of canopy height and tree *** aims at facilitating applications of the 3-D MCRT models to develop remote sensing retrieval *** proposed approach was evaluated using field measurements of two boreal forest stands at Estonia and USA,*** demonstrated that the simulations of bidirectional reflectance factor(BRF)based on the measured forest structures agreed well with the BRF based on the generated structures from the proposed approach with the root mean square error(RMSE)and relative RMSE(rRMSE)ranging from 0.002 to 0.006 and from 0.7%to 19.8%,*** of the computed BRF with corresponding MODIS reflectance data yielded RMSE and rRMSE lower than 0.03 and 20%,*** the results from the current study are limited in two boreal forest stands,our approach has the potential to generate stand structures for different forest biomes.

关键词： Bidirectional reflectance factor remote sensing forest structure radiative transfer model

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Quasi-in-situ study on{10-12}twinning-detwinning behavior of rolled Mg-Li alloy in two-step compression(RD)-compression(ND)process

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Journal of Magnesium and Alloys 2022年第10期10卷 2775-2787页

作者： Biaobiao Yang Chenying Shi Siyu Zhang Jingjing Hu Jianwei Teng Yujie Cui Yunping Li akihiko Chiba State Key Lab for Powder Metallurgy Central South UniversityChangsha 410083China Institute for Materials Research Tohoku UniversitySendai 980-8577Japan

Twinning-detwinning(TDT)behavior in a strongly basal-textured Mg-Li alloy during two-step compression(RD)-compression(ND)process was investigated using quasi-in-situ *** behavior and TDT variants selection were statistically discussed with the loading path for the first ***-Schmid twinning behavior was observed in the first step compression,owing to the local stress fluctuations by neighboring twins;in contrast,Schmid’s law well predicted the detwinning variants *** asymmetrical TDT behavior was first investigated to date related with the strong basal texture and loading ***,with the progress of compression,Schmid factors for twinning demonstrated a decreasing tendency;however,those for detwinning during the second step displayed an abnormally increasing trend,fundamentally stemming from prior twinning behavior.

关键词： Twinning-detwinning Mg-Li alloy Quasi-in-situ Biaxial loading

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High doses of dextromethorphan induced shock and convulsions in a 19-year-old female:A case report

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World Journal of Clinical Cases 2023年第16期11卷 3870-3876页

作者： Shintaro Shimozawa Daisuke Usuda Toru Sasaki Shiho tsuge Riki Sakurai Kenji Kawai Shun Matsubara Risa Tanaka Makoto Suzuki Yuta Hotchi Shungo Tokunaga Ippei Osugi Risa Katou Sakurako Ito Suguru Asako Kentaro Mishima akihiko Kondo Keiko Mizuno Hiroki Takami Takayuki Komatsu Jiro Oba Tomohisa Nomura Manabu Sugita Department of Emergency and Critical Care Medicine Juntendo University Nerima HospitalNerima-city 177-8521TokyoJapan Clinical Training Center Juntendo University Nerima HospitalNerima-city 177-8521TokyoJapan Department of Sports Medicine Faculty of MedicineJuntendo UniversityBunkyo-city 113-8421TokyoJapan

BACKGROUND Dextromethorphan is a prevalent antitussive agent that can be easily obtained as an over-the-counter *** has been a growing number of reported cases of toxicity in recent ***,there are numerous instances of mild symptoms,with only a limited number of reports of severe cases necessitating intensive *** presented the case of a female who ingested 111 tablets of dextromethorphan,leading to shock and convulsions and requiring intensive care that ultimately saved her *** SUMMARY A 19-year-old female was admitted to our hospital via ambulance,having overdosed on 111 tablets of dextromethorphan(15 mg)obtained through an online importer in a suicide *** patient had a history of drug abuse and multiple self-inflicted *** the time of admission,she exhibited symptoms of shock and altered ***,upon arrival at the hospital,the patient experienced recurrent generalized clonic convulsions and status epilepticus,necessitating tracheal *** convulsions were determined to have been caused by decreased cerebral perfusion pressure secondary to shock,and noradrenaline was administered as a *** lavage and activated charcoal were also administered after *** systemic management in the intensive care unit,the patient’s condition stabilized,and the need for vasopressors *** patient regained consciousness and was *** patient was subsequently transferred to a psychiatric facility,as suicidal ideation *** We report the first case of shock caused by an overdose of dextromethorphan.

关键词： Dextromethorphan Drug overdose Shock Symptom Treatment Case report

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Degradation of dibromophenols by UV irradiation

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Journal of Environmental Sciences 2014年第6期26卷 1284-1288页

作者： Keiko Katayama-Hirayama Naoki Toda akihiko Tauchi Atsushi Fujioka Tetsuya Akitsu Hidehiro Kaneko Kimiaki Hirayama Interdisciplinary Graduate School of Medicine and Engineering University of Yamanashi 4-3-11 Takeda Kofu 400-8511 Japan Technology Development Division Toshiba Lighting and Technology Corporation Asahimachi 5-2-1 Imabari Ehime 794-8510 Japan

We examined the degradation of dibromophenols （DBPs）, i.e. 2,4-DBP, 2,6-DBP and 3,5-DBP by ultraviolet （UV） irradiation and estimated the relationship between degradability and molecular orbital properties of each dibromopbenol. The removal of DBPs under a UV lamp system was successfully performed in an aqueous solution. After 5 min of irradiation, the initial DBPs concentration of 20 mg/L was decreased to below 1 mg/L, and about 60% of bromide ion was released. A decrease in the concentration of dissolved organic carbon （DOC） suggested the mineralization of DBPs, The mineralization may occur after release of bromide ions because the decrease of DOC was slower than the release of bromide ions. The degradability of 3,5-DBP was slightly lower than 2,6-DBP and 2,4-DBE Molecular orbital calculation suggested that the electrophilic frontier density and the highest occupied molecular orbital （HOMO） energy may be related to the degradability of DBPs.

关键词： bromide ion dibromophenol DOC mineralization UV irration

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Nitrogen removal efficiencies and microbial communities in full-scale IFAS and MBBR municipal wastewater treatment plants at high COD:N ratio

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Frontiers of Environmental Science & Engineering 2020年第6期14卷 251-263页

作者： Supaporn Phanwilai Naluporn Kangwannarakul Pongsak(Lek)Noophan Tamao Kasahara akihiko Terada Junko Munakata-Marr Linda Ann Figueroa Department of Environmental Enginering Faculty of EngneringKasetsart UnivrsityBangkok 10900Thailand Laboratory of Ecohydrology Division of Forest SciencesDepartment of Agro-enironmental SciencesKyushu UniversityFukuoka 819-0395Japan Deparment of Chemicl Enineing and Instite of Global Imovain Rescarch Tokyo University of Agrcature&TechnoloTokyo 184-8588Japan Depatmtent of Civil and Enivonmenal Enincrn Colordo School of Mines Goldeco 80401USA

The relative locations of AOB,NOB,and DNB were examined for three different kinds of carriers in two types of hybrid bioflm process configurations:integrated fixed-film activated sludge(IFAS)and moving bed bioflm reactor(MBBR)*** water resource recovery facilities(WRRFs)used Anodkainess^TM K1 carriers(KC)at Broomfield,Colorado,USA and polypropylene resin crriers(R)at Fukuok,Japa,whic MBBR WRFS used KC crier at South Adams Couty,Colorado,USA and sponge carriers(SC)at Saga,*** COD to N ratios ranged from 8:1 to 15:*** COD and BOD removal efficiencies were high(96%-98%);NH^+4-N and TN removal efficiencies were more varied at 72%98%and 64%-77%,*** extent of TN removal was higher at high SRT,high COD:N ratio and low DO concentration in the anoxic *** IFAS,RC with high specific surface area.(SSA)maintained higher AOB population than *** carriers with high SSA maintained higher overall bacteria population than KC in MBBR ***,the DNB were not more abundant in high SSA *** diversity of AOB,NOB,and DNB was fairly similar in different *** *** over Nitrosospira *** denitrifying bacteria included Rhodobacter sp.,Sulfuritalea sp.,.Rubrivivax sp:Paracoccus sp..and Pseudomonas *** results from this work suggest that high SRT,***:N ratio,low DO concentration in anoxic tanks,and carriers with greater surface area may be recommended for high COD,BOD and TN removal in WRRFs with IFAS and MBBR systerms.

关键词： IFAS MBBR Anokaness^TM K1 carrier Polypropylene resin carrier Sponge carrier

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Effect of Thermal Drilling Condition on Burring in Ultrahigh Strengh TRIP Sheet Steels

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Journal of Iron and Steel Research International 2011年第S1期18卷 442-446页

作者： akihiko Nagasaka Takuya Matsushima Shun Hasebe Koh-ichi Sugimoto Toshio Murakami Nagano National College of Technology 716 TokumaNaganoNagano 381-8550Japan Shinshu University 4-17-1 WakasatoNaganoNagano 380-8553Japan Material Design Research Section Material Research LaboratoryKobe SteelLtd.1-5-5 TakatsukadaiNishi-kuKobeHyogo 651-2271Japan

Effect of thermal drilling condition on burring of 0.2C-(1.0-2.5)Si-(1.0-2.0)Mn (mass%) ultrahigh strength TRIP-aided sheet steels with polygonal ferrite matrix (TDP steels) was investigated for automotive *** combined rotational and downward force of the thermal drilling tool bit created friction *** height of the bushing was roughly 3 to 4 times the initial sheet *** bushings are ideal for thread applications,as the strength of threads was significantly *** found that the burring and tapping contributed to the improvement of the tensile strength of 980 MPa class TRIP steel.

关键词： TRIP sheet steel burring tapping thermal drilling

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Preparation of TiO_(2)-rich Ba-Ti-O thick films by laser chemical vapor deposition method

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Journal of Advanced Ceramics 2013年第2期2卷 167-172页

作者： Dongyun GUO akihiko ITO Takashi GOTO Rong TU Chuanbin WANG Qiang SHEN Lianmeng ZHANG State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China Institute for Materials Research Tohoku UniversitySendai 980-8577Japan

TiO_(2)-rich Ba-Ti-O films were prepared on Pt/Ti/SiO_(2)/Si substrate by laser chemical vapor deposition(LCVD).Their phase relationship and microstructure were *** single-phase BaTi_(2)O_(5),Ba_(4)Ti_(13)O_(3)0 and BaTi_(5)O_(11) films were prepared at Ti/Ba molar ratios m_(Ti/Ba)=1.84-1.90,2.83 and 4.49-4.55,*** high deposition rate of TiO_(2)-rich Ba-Ti-O films ranged from 54.0μm/h to 177.6μm/*** permittivity of BaTi_(2)O_(5)film(prepared at m_(Ti/Ba)=1.84 and deposition temperature T_(dep)=877 K),Ba_(4)Ti_(13)O_(3)0 film(prepared at m_(Ti/Ba)=2.83 and T_(dep)=914 K)and BaTi5O11 film(prepared at m_(Ti/Ba)=4.49 and T_(dep)=955 K)were 50,40 and 21,respectively.

关键词： laser chemical vapor deposition(LCVD) TiO_(2)-rich Ba-Ti-O film microstructure deposition temperature dielectric properties

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Impact of friction stir welding on recrystallization of oxide dispersion strengthened ferritic steel

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Journal of Materials Science & Technology 2018年第1期34卷 209-213页

作者： Wentuo Han Pingping Liu Xiaoou Yi Qian Zhan Farong Wan Kiyohiro Yabuuchi Hisashi Serizawa akihiko Kimura School of Materials Science and Engineering University of Science and Technology Beijing. Beijing 100083. China Institute of Advanced Energy. Kyoto University Gokasho Uji Kyoto 611-0011Japan Joining and Welding Research Institute. Osaka University Ibaraki Osaka567-0047Japan

Oxide dispersion strengthened （ODS） steels can be used as the structural materials in the future fusion reactors and the fuel cladding materials in the advanced fission reactors. However, the weldability of ODS steels is a severe problem. In the present study, defect-free joints of the 15Cr-ODS ferritic steel were achieved by friction stir welding at different rotation speeds. The recrystallization, hardness and tensile properties are highly related with the rotation speed of the stir tool. The higher rotation speed results in coarser grains in the top SZ, while the grain size exhibits more complicated relation with the rotation speed in the SZ center. The joint welded at 250 rpm exhibits a maximum tensile strength of 974 MPa that reaches about 84% of that of the base metal.

关键词： ODS ferritic steel Friction stir welding Recrystallization behavior Electron backscatter diffraction Vickers hardness

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Hardening of an ODS Ferritic Steel after Helium Implantation and Thermal Annealing

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Chinese Physics Letters 2018年第5期35卷 82-86页

作者： Chang-Hao Su Chong-Hong Zhang Yi-Tao Yang Zhao-Nan Ding Yu-Guang Chen akihiko Kimura Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 University of Chinese Academy of Sciences Beijing 100049 Institute of Advanced Energy Kyoto University Kyoto 611-0011 Japan

Specimens of an oxide dispersion strengthened（ODS） ferritic steel（15 Cr-4 Al-0.6 Zr-0.1 Ti） are implanted with multiple-energy He ions at room temperature to create a damage plateau of 0.4 dpa for the average（corresponding to an He concentration of about 7000 appm） from the near surface to a depth about 1 um. The specimen is subsequently thermally annealed at 800°C for 1 h in a vacuum so that simple defects can be formed in the as-implanted state that has undergone significant recombination, meanwhile helium bubbles at nano-scale are formed. Hardness of the specimens are tested with the nano-indentation technique. A hardening by 25% is observed. Microstructures of the specimen after irradiation/annealing are investigated with transmission electron microscopy. Helium bubbles are generally located at dislocations and grain boundaries. Using the dispersed barrier strength model, the strength factor of helium bubbles in the ODS ferritic steel is estimated to be between0.1 and 0.26, which is close to that of helium bubbles in austenitic steels.

关键词： Cr ODS Hardening of an ODS Ferritic Steel after Helium Implantation and Thermal Annealing

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Current perspectives of viral hepatitis

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World Journal of Gastroenterology 2024年第18期30卷 2402-2417页

作者： Daisuke Usuda Yuki Kaneoka Rikuo Ono Masashi Kato Yuto Sugawara Runa Shimizu Tomotari Inami Eri Nakajima Shiho tsuge Riki Sakurai Kenji Kawai Shun Matsubara Risa Tanaka Makoto Suzuki Shintaro Shimozawa Yuta Hotchi Ippei Osugi Risa Katou Sakurako Ito Kentaro Mishima akihiko Kondo Keiko Mizuno Hiroki Takami Takayuki Komatsu Tomohisa Nomura Manabu Sugita Department of Emergency and Critical Care Medicine Juntendo University Nerima HospitalNerima 177-8521TokyoJapan Department of Sports Medicine Faculty of MedicineJuntendo UniversityBunkyo 113-8421TokyoJapan

Viral hepatitis represents a major danger to public health,and is a globally leading cause of *** five liver-specific viruses:Hepatitis A virus,hepatitis B virus,hepatitis C virus,hepatitis D virus,and hepatitis E virus,each have their own unique epidemiology,structural biology,transmission,endemic patterns,risk of liver complications,and response to antiviral *** remain few options for treatment,in spite of the increasing prevalence of viral-hepatitiscaused liver ***,chronic viral hepatitis is a leading worldwide cause of both liver-related morbidity and mortality,even though effective treatments are available that could reduce or prevent most patients’*** 2016,the World Health Organization released its plan to eliminate viral hepatitis as a public health threat by the year 2030,along with a discussion of current gaps and prospects for both regional and global eradication of viral ***,treatment is sufficiently able to prevent the disease from reaching advanced ***,future therapies must be extremely safe,and should ideally limit the period of treatment necessary.A better understanding of pathogenesis will prove beneficial in the development of potential treatment strategies targeting infections by viral *** review aims to summarize the current state of knowledge on each type of viral hepatitis,together with major innovations.

关键词： Hepatitis A virus Hepatitis B virus Hepatitis C virus Hepatitis D virus Hepatitis E virus Current perspectives

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