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Removal of Anionic Metal Ions from Wastewater by Hydroxide-type Adsorbents

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过程工程学报 2006年第3期6卷 357-362页

作者： Toyohisa fujita Gjergj Dodbiba Jun Sadaki Atsushi Shibayama Dept. Geosystem Eng. Graduate School Eng.The University of TokyoTokyo 113-8654Japan Dept. Material-Process. Eng.&Appl. Chem. for Environ. Faculty Eng.&Resources Sci.Akita Univ.Akita 010-8502Japan

Generally speaking,anionic metal concentrations in wastewater from industries and mineral processing plants are well above the allowed limits for effluent set by the Ministry of Environment of Japan. Nowadays,the removal of anionic ions has been considered difficult and development of new process is desperately needed. In this paper,we report the development of three hydroxide-type adsorbents,illustrating their adsorption efficiency in removing As,Se,Mo and Sb ions from aqueous solutions. The main finding of this work was that the adsorption behavior was influenced very much by both the pH and the adsorbent concentration. Nevertheless,the newly developed hydroxide-type adsorbents were very effective in reducing the concentration of those anionic ions.

关键词： hydroxide-type adsorbent adsorption anionic metal ions removal wastewater

Src Is Dephosphorylated at Tyrosine 530 in Human Colon Carcinomas

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Chinese Journal of Cancer Research 2011年第3期23卷 229-231页

作者： Jeffrey D Bjorge Donald J fujita Department of Biochemistry and Molecular Biology and Southern Alberta Cancer Research InstituteUniversity of Calgary

Objective：Src is a protein tyrosine kinase that plays important roles in cancer development,and Src kinase activity has been found to be elevated in several types of ***,the cause of the elevation of Src kinase activity in the majority of human colon carcinomas is still largely *** aim at finding the cause of elevated Src kinase activity in human colon ***：We employed normal colon epithelial FHC cells and examined Src activation in human colon carcinoma specimens from 8 *** expression levels were determined by Western blotting,and the activity of Src kinase by kinase ***：Actin levels were different between tumor and normal tissues,demonstrating the complexities and inhomogeneities of the tissue *** kinase activities were increased in the majority of the colon carcinomas as compared with normal colon epithelial cells （range 13-29）.Src protein levels were reduced in the colon *** y530 phosphorylation levels were reduced to a higher extent than protein levels in the ***：The results suggest that Src specific activities were highly increased in human colon carcinomas;phosphorylation at Src y530 was reduced,contributing to the highly elevated Src specific activity and Src kinase activity.

关键词： Src Kinase activation Dephosphorylation Colon carcinoma

A Simplified Approach of Open Boundary Conditions for the Smoothed Particle Hydrodynamics Method

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Computer Modeling in Engineering & Sciences 2021年第11期129卷 425-442页

作者： Thanh Tien Bui yoshihisa fujita Susumu Nakata Graduate School of Information Science and Engineering Ritsumeikan UniversityShiga525-8577Japan College of Information Science and Engineering Ritsumeikan UniversityShiga525-8577Japan

In this paper,we propose a simplified approach of open boundary conditions for particle-based fluid simulations using the weakly compressible smoothed-particle hydrodynamics(SPH)*** this scheme,the values of the inflow/outflow particles are calculated as fluid particles or imposed desired values to ensure the appropriate evolution of the flow field instead of using a renormalization process involving the fluid *** concentrate on handling the generation of new inflow particles using several simple approaches that contribute to the flow field *** advantages of theδ^(+).-SPH scheme,specifically the particle shifting technique,were successfully applied to correct the position,velocity,and pressure terms of the ***,unexpected errors were removed and tensile instabilities of the particles were *** proposed technique is validated for several benchmark test cases,and the tests show that the results match the reference solutions well.A viscous open-channel flow is used to demonstrate the stability of the flow field during the computational *** on this stability,we compress the computational domain to a lower resolution in a second test case while preserving the accuracy of the *** over a backward-facing step is used to highlight the challenges of inflow boundary conditions with prescribed or non-prescribed *** developed technique is well suited to the wall boundaries and the evolution of the flow *** results demonstrate the robustness and versatility of the proposed technique for a variety of simulations.

关键词： Fluid simulation smoothed particle hydrodynamics open boundaries

Multimodal label-free microscopy

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Journal of Innovative Optical Health Sciences 2014年第5期7卷 17-38页

作者： Nicolas Pavillon Katsumasa fujita Nicholas Isaac Smith Biophotonics LaboratoryImmunology Frontier Research Center(IFReC Department of Applied Physics Osaka UniversitySuitaOsaka 565-0871Japan

This paper reviews the different multimodal applications based on a large ext ent of label-freeinaging modalities,ranging from linear to nonlinear optics,while also inchuding *** put specific emphasis on multimodal measurements going across the usual boundaries between imaging modalities,whereas most multimodal platforms combine techniquesbased on similar light interactions or similar hardware *** this review,we limitthe scope to focus on applications for biology such as live cells or tissues,since by their nat ure ofbeing alive or fragile,we are often not free to take liberties with the image acquisition times andare forced to gather the maximum amount of information possible at one *** such samples,imaging by a given label-free method usually presents a challenge in obt aining suficient opticalsignal or is limited in terms of the types of observable *** imaging is thenparticularly attractive for these samples in order to maximize the amount of measured *** multimodal imaging is always useful in the sense of acquiring additional infor-mation from additional modes,at times it is possible to attain information that could not bediscovered using any single mode alone,which is the essence of the progress that is possible usinga multimodal approach.

关键词： Optical microscopy nonlinear optics microspectroscopy

Two-step accelerated mineral carbonation and decomposition analysis for the reduction of CO_2 emission in the eco-industrial parks

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Journal of Environmental Sciences 2014年第7期26卷 1411-1422页

作者： Seok Jung Li Pang Wang Gjergj Dodbiba Toyohisa fujita Department of Systems Innovation Graduate School of Engineering The University of TokyoBunkyo-Ku Tokyo 113-8656 Japan

Carbon dioxide（CO2） emissions are a leading contributor to the negative effects of global warming. Globally, research has focused on effective means of reducing and mitigating CO2 emissions. In this study, we examined the efficacy of eco-industrial parks（EIPs） and accelerated mineral carbonation techniques in reducing CO2 emissions in South ***, we used Logarithmic Mean Divisia Index（LMDI） analysis to determine the trends in carbon production and mitigation at the existing EIPs. We found that, although CO2 was generated as byproducts and wastes of production at these EIPs, improved energy intensity effects occurred at all EIPs, and we strongly believe that EIPs are a strong alternative to traditional industrial complexes for reducing net carbon emissions. We also examined the optimal conditions for using accelerated mineral carbonation to dispose of hazardous fly ash produced through the incineration of municipal solid wastes at these EIPs. We determined that this technique most efficiently sequestered CO2 when micro-bubbling, low flow rate inlet gas, and ammonia additives were employed.

关键词： CO2 emissionsLMDI analysisAccelerated mineral carbonation EIPs

Optimal turning method of composting regarding hygienic safety

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Journal of Environmental Sciences 2005年第2期17卷 194-199页

作者： Masafumi Tateda Le Duc Trung Michihiko Ike Masanori fujita Department of Environmental Systems Engineering College of TechnologyToyama Prefectural University5180 KurokawaKosugiImizuToyama 939-0398Japan Department of Environmental Engineering Graduate School of EngineeringOsaka University2-1 YamadaokaSuitaOsaka 565-0871Japan

The new turning method was proposed and verified its effectiveness to pathogens by laboratory scale *** the results obtained from the previous studies,it could be said that turning of a composting pile was essential in terms of hygienic aspects but the number of turning should be *** of inactivation was estimated for each composting *** this estimation,turning by layers,which is different from conventional turning that mixes compost pile entirely,was proposed and investigated its performance by *** operations with static pile method,complete mix(conventional)turning method,and proposed turning(layer turning)method were done and their effectiveness on inactivation of indicator microorganism was evaluated and *** results,the conventional turning method was not a proper method in terms of pathogen inactivation,whereas,the proposed turning method showed an excellent performance and should be employed in a composting operation.

关键词： composting turning inactivation hygienic safety

Involvement of integrin-activating peptides derived from tenascin-C in colon cancer progression

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World Journal of Gastrointestinal Oncology 2021年第9期13卷 980-994页

作者： Motomichi fujita Hideo Suzuki Fumio Fukai Department of Molecular Patho-Physiology Tokyo University of ScienceNoda 278-8510ChibaJapan Department of Gastroenterology University of TsukubaTsukuba 305-8575IbarakiJapan

Tenascin-C(TNC)is an adhesion modulatory protein present in the extracellular matrix that is highly expressed in several malignancies,including colon *** TNC is considered a negative prognostic factor for cancer patients,the substantial role of the TNC molecule in colorectal carcinogenesis and its malignant progression is poorly *** previously found that TNC has a cryptic functional site and that a TNC peptide containing this site,termed TNIIIA2,can potently and persistently activate *** contrast,the peptide FNIII14,which contains a cryptic bioactive site within the fibronectin molecule,can inactivate *** review presents the role of TNC in the development of colitis-associated colorectal cancer and in the malignant progression of colon cancer,particularly the major involvement of its cryptic functional site *** propose new possible prophylactic and therapeutic strategies based on inhibition of the TNIIIA2-induced beta1-integrin activation by peptide FNIII14.

关键词： Tenascin-C TNIIIA2 Beta1-integrin Integrin activation Colitis-associated colorectal cancer Colon cancer

A Novel System for Xylem Cell Differentiation in Arabidopsis thaliana

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Molecular Plant 2015年第4期8卷 612-621页

作者： yuki Kondo Takashi fujita Munetaka Sugiyama Hiroo Fukuda Department of Biological Sciences Graduate School of Science The University of Tokyo 7-3-1 Hongo Bunkyo-ku tokyo 113-0033 Japan Botanical Gardens Graduate School of Science Tile University of Tokyo 3-7-1 Hakusan Bunkyo-ku Tokyo 112-0001 Japan

During vascular development, procambial and cambial cells give rise to xylem and phloem cells. Because the vascular tissue is deeply embedded, it has been difficult to analyze the processes of vascular development in detail. Here, we establish a novel in vitro experimental system in which vascular development is induced in Arabidopsis thaliana leaf-disk cultures using bikinin, an inhibitor of glycogen synthase kinase 3 proteins. Transcriptome analysis reveals that mesophyll cells in leaf disks synchronously turn into procambial cells and then differentiate into tracheary elements. Leaf-disk cultures from plants expressing the procambial cell markers TDRpro：GUS and TDRpro：yFP can be used for spatiotemporal visualization of procambial cell formation. Further analysis with the tdr mutant and TDIF （tracheary element differentiation inhibitory factor） indicates that the key signaling TDIF-TDR-GSK3s regulates xylem differentiation in leaf-disk cultures. This new culture system can be combined with analysis using the rich material resources for Arabidopsis including cell-marker lines and mutants, thus offering a powerful tool for analyzing xylem cell differentiation.

关键词： Arabidopsis thaliana bikinin leaf-disk culture transcriptome tracheary element differentiation signaling

Carbon footprint assessment for the waste management sector： A comparative analysis of China and Japan

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Frontiers in Energy 2018年第3期12卷 400-410页

作者： Lu SUN Zhaoling LI Minoru FUJII yasuaki HIJIOKA Tsuyoshi fujita Department of Environment Systems Graduate School of FrontierSciences The University of Tokyo 5-1-5 Kashiwanoha Kashiwa-shiChiba 277-8563 Japan Center for Social and Environmental Systems Research NationalInstitute for Environmental Studies (NIES) 16-20nogawa TsukubaIbaraki 305-8506 Japan Graduate School of Life and Environmental Sciences University ofTsukuba Tsukuba lbaraki 305-8506 Japan

Waste management is becoming a crucial issue in modem society owing to rapid urbanization and the increasing generation of municipal solid waste （MSW）. This paper evaluates the carbon footprint of the waste management sector to identify direct and indirect carbon emissions, waste recycling carbon emission using a hybrid life cycle assessment and input-output analysis. China and Japan was selected as case study areas to highlight the effects of different industries on waste management. The results show that the life cycle carbon footprints for waste treatment are 59.01 million tons in China and 7.01 million tons in Japan. The gap between these footprints is caused by the different waste management systems and treatment processes used in the two countries. For indirect carbon footprints, China＇s material carbon footprint and deprecia- tion carbon footprint are much higher than those of Japan, whereas the purchased electricity and heat carbon footprint in China is half that of Japan. China and Japan have similar direct energy consumption carbon footprints. However, CO2 emissions from MSW treatment processes in China （46.46 million tons） is significantly higher than that in Japan （2.72 million tons）. The corresponding effects of waste recycling on CO2 emission reductions are consider- able, up to 181.37 million tons for China and 96.76 million tons for Japan. Besides, measures were further proposed for optimizing waste management systems in the two countries. In addition, it is argued that the advanced experience that developed countries have in waste management issues can provide scientific support for waste treatment in developing countries such as China.

关键词： waste management waste recycling carbon footprint hybrid LCA