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| 1 | Start-up performances of dry anaerobic mesophilic and thermophilic digestions of organic solid wastes显示文摘器官的稳固的浪费的二干燥厌氧的消化为在 mesophilicand thermophilic conditions.The enzymaticactivities 下面调查启动表演在一个实验室规模批实验为 6weeks 被进行,即, beta-glucosidase , N-alpha-benzoyl-L-argininamide (咩) -hydrolysing 朊酶, ureaseand 磷酸酶活动在第一 2-3weeks 期间是 analysed.The BAA-hydrolysing 朊酶活动与低 pH 是低的,但是以后与 pH increase.beta-Glucosidase activityshowed t | LU Shu-guang IMAI Tsuyoshi UKITA Masao SEKINE Masahiko | 2007 | Journal of Environmental Sciences2007，19，4： | 19 |
| 2 | Inactivation effect of pressurized carbon dioxide on bacteriophage Qβ and ΦX174 as a novel disinfectant for water treatment显示文摘The inactivation effects of pressurized CO2 against bacteriophage Qβ and ΦX174 were investigated under the pressure of 0.3–0.9 MPa, initial concentration of 107–109PFU/mL, and temperature of17.8°C–27.2°C. The optimum conditions were found to be 0.7 MPa and an exposure time of 25 min. Under identical treatment conditions, a greater than 3.3-log reduction in bacteriophage Qβ was achieved by CO2, while a nearly 3.0 log reduction was observed for phage ΦX174. The viricidal effects of N2O(an inactivation gas with similar characteristics to CO2), normal acid(HCl), and CO2 treatment with phosphate buffered saline affirmed the chemical nature of CO2 treatment. The pumping cycle, depressurization rate, and release of intracellular substances caused by CO2 were its viricidal mechanisms. The results indicate that CO2 has the potential for use as a disinfectant without forming disinfection by-products. | Huy Thanh Vo Tsuyoshi Imai Truc Thanh Ho Masahiko Sekine Ariyo Kanno Takaya Higuchi Koichi Yamamoto Hidenori Yamamoto | 2014 | Journal of Environmental Sciences2014，26，6： | 4 |
| 3 | Potential bioremediation of mercury-contaminated substrate using filamentous fungi isolated from forest soil显示文摘The use of filamentous fungi in bioremediation of heavy metal contamination has been developed recently. This research aims to observe the capability of filamentous fungi isolated from forest soil for bioremediation of mercury contamination in a substrate. Six fungal strains were selected based on their capability to grow in 25 mg/L Hg2+-contaminated potato dextrose agar plates. Fungal strain KRP1 showed the highest ratio of growth diameter, 0.831, thus was chosen for further observation.Identification based on colony and cell morphology carried out by 18S rRNA analysis gave a 98%match to Aspergillus flavus strain KRP1. The fungal characteristics in mercury(Ⅱ) contamination such as range of optimum pH, optimum temperature and tolerance level were 5.5–7 and 25–35℃ and 100 mg/L respectively. The concentration of mercury in the media affected fungal growth during lag phases. The capability of the fungal strain to remove the mercury(Ⅱ) contaminant was evaluated in 100 mL sterile 10 mg/L Hg2+-contaminated potato dextrose broth media in 250 mL Erlenmeyer flasks inoculated with 108spore/mL fungal spore suspension and incubation at 30℃ for 7 days. The mercury(Ⅱ) utilization was observed for flasks shaken in a 130 r/min orbital shaker(shaken) and nonshaken flasks(static) treatments. Flasks containing contaminated media with no fungal spores were also provided as control. All treatments were done in triplicate. The strain was able to remove 97.50%and 98.73% mercury from shaken and static systems respectively. A. flavus strain KRP1 seems to have potential use in bioremediation of aqueous substrates containing mercury(Ⅱ) through a biosorption mechanism. | Evi Kurniati Novi Arfarita Tsuyoshi Imai Takaya Higuchi Ariyo Kanno Koichi Yamamoto Masahiko Sekine | 2014 | Journal of Environmental Sciences2014，26，6： | 4 |
| 4 | Biosynthesis of Polyhydroxyalkanoate (PHA) by Hydrogenophaga sp. Isolated from Soil Environment during Batch Fermentation显示文摘 | Varavut Tanamool Tsuyoshi Imai Paiboon Danvirutai Pakawadee Kaewkannetra | 2011 | Journal of Life Sciences2011，5，12： | 3 |
| 5 | Response surface method for modeling the removal of carbon dioxide from a simulated gas using water absorption enhanced with a liquid-film-forming device显示文摘This paper presents the results from using a physical absorption process to absorb gaseous CO_2mixed with N_2using water by producing tiny bubbles via a liquid-film-forming device(LFFD)that improves the solubility of CO_2in water.The influence of various parameters—pressure,initial CO_2concentration,gas-to-liquid ratios,and temperature—on the CO_2removal efficiency and its absorption rate in water were investigated and estimated thoroughly by statistical polynomial models obtained by the utilization of the response surface method(RSM)with a central composite design(CCD).Based on the analysis,a high efficiency of CO_2capture can be reached in conditions such as low pressure,high CO_2concentration at the inlet,low gas/liquid ratio,and low temperature.For instance,the highest removal efficiency in the RSM–CCD experimental matrix of nearly 80%occurred for run number 20,which was conducted at 0.30 MPa,CO_2concentration of 35%,gas/liquid ratio of 0.71,and temperature of 15°C.Furthermore,the coefficients of determination,R^2,were 0.996 for the removal rate and 0.982 for the absorption rate,implying that the predicted values computed by the constructed models correlate strongly and fit well with the experimental values.The results obtained provide essential information for implementing this method properly and effectively and contribute a promising approach to the problem of CO_2capture in air pollution treatment. | Diem-Mai Kim Nguyen Tsuyoshi Imai Thanh-Loc Thi Dang Ariyo Kanno Takaya Higuchi Koichi Yamamoto Masahiko Sekine | 2018 | Journal of Environmental Sciences2018，30，3： | 2 |
| 6 | Effect of limited aeration on the anaerobic treatment of evapora-tor condensate from a sulfite pulpmill显示文摘 | Weili Zhou Tsuyoshi Imai Masao Ukita | 2007 | Chemosphere2007，66，5： | 1 |
| 7 | Personality of seasonal affective disorder analyzed by Tri-dimensional Personality Questionnaire显示文摘 | Nobuhisa Maeno Kazunori Kusunoki Tsuyoshi Kitajima Nakao Iwata Yuichiro Ono Shuji Hashimoto Makoto Imai Lan Li Yuhei Kayukawa Tatsuro Ohta Norio Ozaki | 2004 | Journal of Affective Disorders2004，，： | 1 |
| 8 | Construction of a linkage map for watermelon (Citrullus lanatus (Thunb.) Matsum & Nakai) using random amplified polymorphic DNA (RAPD)显示文摘 | Toshiharu Hashizume Ikuhiro Shimamoto Yoshiaki Harushima Mamiko Yui Takanori Sato Tsuyoshi Imai Masashi Hirai | 1996 | Euphytica1996，，3： | 1 |
| 9 | Potential application of high pressure carbon dioxide in treated wastewater and water disinfection:Recent overview and further trends显示文摘Recently emerging disadvantages in conventional disinfection have heightened the need for finding a new solution. Developments in the use of high pressure carbon dioxide for food preservation and sterilization have led to a renewed interest in its applicability in wastewater treatment and water disinfection. Pressurized CO2 is one of the most investigated methods of antibacterial treatment and has been used extensively for decades to inhibit pathogens in dried food and liquid products. This study reviews the literature concerning the utility of CO2 as a disinfecting agent, and the pathogen inactivation mechanism of CO2 treatment is evaluated based on all available research. In this paper, it will be argued that the successful application and high effectiveness of CO2 treatment in liquid foods open a potential opportunity for its use in wastewater treatment and water disinfection. The findings from models with different operating conditions(pressure, temperature, microorganism, water content, media …) suggest that most microorganisms are successfully inhibited under CO2 treatment. It will also be shown that the bacterial deaths under CO2 treatment can be explained by many different mechanisms.Moreover, the findings in this study can help to address the recently emerging problems in water disinfection, such as disinfection by-products(resulting from chlorination or ozone treatment). | Huy Thanh Vo Tsuyoshi Imai Truc Thanh Ho Thanh-Loc Thi Dang Son Anh Hoang | 2015 | Journal of Environmental Sciences2015，27，10： | 1 |
| 10 | Advanted start up of UASB reactors by adding of water absorbing polymer显示文摘 | Imai Tsuyoshi Ukita Masao Liu Jun | 1997 | Water Science and Technology1997，36，67： | 1 |
| 11 | Advanted start up of UASB reactors by adding of water absorbing polymer显示文摘 | Imai Tsuyoshi Ukita Masao Liu Jun | 1997 | Water Science and Technology1997，36，67： | 1 |
| 12 | Importance of the l-galactonolactone pool for enhancing the ascorbate content revealed by l -galactonolactone dehydrogenase-overexpressing tobacco plants显示文摘 | Tsuyoshi Imai Mamiko Niwa Yusuke Ban Masashi Hirai Kazuko ?ba Takaya Moriguchi | 2009 | Plant Cell Tissue and Organ Culture2009，，1： | 1 |
| 13 | Effect of loading rate on the granulation process and granular activity in a bench scale UASB reactor显示文摘 | WEILI ZHOU TSUYOSHI IMAI MASAO UKITA | 2007 | Bioresource Technology2007，98，7： | 1 |
| 14 | Effect of loading rate on the granulation process and granular activity in a bench scale UASB reactor 显示文摘 | Weili Zhou Tsuyoshi Imai Masao Ukita | 2007 | Bio Resource Technology2007，98，： | 1 |
| 15 | High-dose dexamethasone therapy for severe thrombocytopenia and neutropenia induced by EBV infectious mononucleosis显示文摘 | Yuki Kagoya Akira Hangaishi Tsuyoshi Takahashi Yoichi Imai Mineo Kurokawa | 2010 | International Journal of Hematology2010，，2： | 1 |
| 16 | Importance of the l-galactonolactone pool for enhancing the ascorbate content revealed by l -galactonolactone dehydrogenase-overexpressing tobacco plants显示文摘 | Tsuyoshi Imai Mamiko Niwa Yusuke Ban Masashi Hirai Kazuko ?ba Takaya Moriguchi | 2009 | Plant Cell Tissue and Organ Culture2009，，1： | 1 |
| 17 | Delignification of disposable wooden chopsticks waste for fermentative hydrogen production by an enriched culture from a hot spring显示文摘Hydrogen(H2) production from lignocellulosic materials may be enhanced by removing lignin and increasing the porosity of the material prior to enzymatic hydrolysis. Alkaline pretreatment conditions,used to delignify disposable wooden chopsticks(DWC) waste, were investigated. The effects of NaOH concentration, temperature and retention time were examined and it was found that retention time had no effect on lignin removal or carbohydrate released in enzymatic hydrolysate. The highest percentage of lignin removal(41%) was obtained with 2% NaOH at 100℃, correlated with the highest carbohydrate released(67 mg/gpretreated DWC) in the hydrolysate. An enriched culture from a hot spring was used as inoculum for fermentative H2 production, and its optimum initial pH and temperature were determined to be 7.0 and 50℃, respectively. Furthermore, enzymatic hydrolysate from pretreated DWC was successfully demonstrated as a substrate for fermentative H2 production by the enriched culture. The maximum H2 yield and production rate were achieved at 195 mL H2/g total sugarsconsumedand 116 mL H2/(L·day), respectively. | Kanthima Phummala Tsuyoshi Imai Alissara Reungsang Prapaipid Chairattanamanokorn Masahiko Sekine Takaya Higuchi Koichi Yamamoto Ariyo Kanno | 2014 | Journal of Environmental Sciences2014，26，6： | 0 |
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