Nickel-catalyzed carbonization of wood for coproduction of functional carbon and fluid fuels I: production of crystallized mesoporous carbon     

Tsutomu Suzuki  Kyoko Suzuki  Yukio Takahashi  Mitsuhiro Okimoto  Tetsuo Yamada  Noriyasu Okazaki  Yuichi Shimizu  Masashi Fujiwara 《Journal of Wood Science》2007,53(1):54-60

Japanese larch wood loaded with nickel (1%–4%) alone or with nickel and calcium (0.25%–1.5%) was carbonized at 800°–900°C for 0–120min with a heating rate of 5°–20°C min⁻¹ in a helium flow of 5.8−46.4 ml STP cm⁻² min⁻¹ to examine the influence of these variables on the crystallization of carbon (the formation of T component) and the development of mesoporosity. From the obtained results, reaction conditions suitable for effective production of carbon with the dual functions of adequate electroconductivity and adsorption capacity in liquid phase were established, thereby explaining the factors that govern the process. It was also confirmed that mesopore having a diameter of about 4 nm was selectively produced at the cost of specific (BET) surface area in parallel with the formation of T component. This result provided good insight into how the simultaneous dual function could be realized.  相似文献   

Evaluation of Meniscal Click for Detecting Meniscal Tears in Stifles with Cranial Cruciate Ligament Disease          下载免费PDF全文

Brittany A. Neal VMD  Dennis Ting DVM  Diplomate ACVS  Jennifer J. Bonczynski DVM  Diplomate ACVS  Koji Yasuda DVM 《Veterinary surgery : VS》2015,44(2):191-194

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Variations in the morphology of Rhizomucor pusillus in granulomatous lesions of a Magellanic penguin (Spheniscus magellanicus)     

Fumiko SUZUTA  Kumiko KIMURA  Ryo URAKAWA  Yukio KUSUDA  Shogo TANAKA  Yasuko HANAFUSA  Makoto HARITANI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(8):1029-1031

This report presents a new case of mucormycosis encountered in penguin characterized by morphological variation of hyphae and presence of sporangia with numerous sporangiospores. A 4.5-year-old Magellanic penguin (Spheniscus magellanicus) died after exhibiting anorexia, poor nutritional condition and dyspnea. Multiple nodular lesions were observed in the thoracic and abdominal regions. Histopathologically, hyphae of various sizes were seen in the lungs, air sac and nodular lesions. Myriad sporangiospores and several sporangia were observed in/around the bronchi or parabronchi. The very narrow and short hyphae in the nodules were not consistent with the characteristics of Mucorales. However, for most hyphae, including those in the nodules, sporangiospores and sporangia, immunohistochemistry revealed Mucorales-positive reactions. In addition, these fungi were identified as Rhizomucor pusillus by gene analysis.  相似文献   

Effect of a Bowman-Birk proteinase inhibitor from Phaseolus coccineus on Hypothenemus hampei gut proteinases in vitro     

de Azevedo Pereira R  Valencia-Jiménez A  Magalhães CP  Prates MV  Melo JA  de Lima LM  de Sales MP  Tempel Nakasu EY  da Silva MC  Grossi-de-Sá MF 《Journal of agricultural and food chemistry》2007,55(26):10714-10719

The coffee berry borer, Hypothenemus hampei (Ferrari), is an important devastating coffee pest worldwide. Both trypsin and chymotrypsin enzyme activities from H. hampei larval midgut can be inactivated by proteinaceous enzyme-inhibitors. A serine proteinase inhibitor belonging to the Bowman-Birk class was purified from a wild accession of Phaseolus coccineus L. seeds. The inhibitor (PcBBI1) is a cysteine-rich protein that is heat-stable at alkaline pH. MALDI-TOF/MS analysis showed that PcBBI1 occurs in seeds as a monomer (8689 Da) or dimer (17,378 Da). Using in vitro inhibition assays, it was found that PcBBI1 has a high inhibitory activity against H. hampei trypsin-like enzymes, bovine pancreatic chymotrypsin, and trypsin. According to this, PcBBI1 could be a promising tool to make genetically modified coffee with resistance to coffee berry borer.  相似文献   

Expression of Krüppel-Like Factor 6, KLF6, in Rat Pituitary Stem/Progenitor Cells and Its Regulation of the PRRX2 Gene     

Hiroki UEHARU  Masashi HIGUCHI  Naoto NISHIMURA  Saishu YOSHIDA  Shiori SHIBUYA  Kenta SENSUI  Takako KATO  Yukio KATO 《The Journal of reproduction and development》2014,60(4):304-311

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Estrogenic activity in coastal areas around Japan evaluated by measuring male serum vitellogenins in Japanese common goby Acanthogobius flavimanus   总被引：1，自引：0，他引：1  

Nobuyuki  OHKUBO  Kazuhiko  MOCHIDA  Shinji  ADACHI  Akihiko  HARA  Komei  HOTTA  Yukio  NAKAMURA  Takahiro  MATSUBARA 《Fisheries Science》2003,69(6):1135-1145

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Viability of maternally heat-stressed mouse zygotes in vivo and in vitro   总被引：3，自引：0，他引：3  

Manabu OZAWA  Yukiko YAMASAKI  Miho HIRABAYASHI  Yukio KANAI 《Animal Science Journal》2003,74(3):181-185

Mammalian preimplantation embryos are susceptible to heat stress. This present study examined how maternal heat stress affects the development of mouse zygotes in vivo and in vitro. In Experiment 1, zygotes collected from female mice that were heat‐stressed for 12 h on day 1 of pregnancy were cultured in vitro. Maternally heat‐stressed zygotes developed normally to the two‐cell stage, but the majority of embryos failed to develop into morulae or blastocysts. In Experiment 2, pregnant mice were heat‐stressed on day 1 or from day 1 to day 3 of pregnancy. The number of living fetuses on day 14 of pregnancy was lower in heat‐stressed mice than in non‐stressed mice, but the difference was significant only in successively heat‐stressed mice. These results demonstrate that maternally heat‐stressed zygotes have reduced in vitro viability, but this phenomenon does not necessarily lead to embryo loss in the maternal environment.  相似文献   

Influence of Acid Deposition on Inland Water Chemistry - A Case Study from Hyogo Prefecture, Japan -     

Yukio Komai  Satoshi Umemoto  Takanobu Inoue 《Water, air, and soil pollution》2001,130(1-4):1535-1540

The Influence of acid deposition on stream and lake water chemistry was studied in a forested watershed of Hyogo prefecture, Japan. Monthly sampling of four streams, one artificial lake, and precipitation was carried out from 1995 to 2000. The pH of the monthly bulk precipitation and rainwater were ranged from 4.06 to 7.10. No trends were evident during the monitoring periods. The pH and alkalinity in the four streams, which flow into the artificial lake, ranged from 6.37 to 8.72 and 0.077 meqL^?1 to 0.485 meqL^?1, respectively. The differences in the water quality of the four streams were related to the geology of each watershed. Lower pH and alkalinity were observed during high- discharge periods. On the other hand, the pH and alkalinity of the outflow from the lake ranged from 6.47 to 7.36 and 0.195 meqL^?1 to 0.339 meqL^?1, respectively. No acidification of the aquatic environment was observed during the investigated periods. The results suggest that this forested ecosystem has the capacity to neutralize incoming acid deposition.  相似文献   

Use of electrical conductivity to estimate effects of competing ions on radionuclide distribution coefficients     

H. Yasuda 《Water, air, and soil pollution》1994,75(3-4):421-427

The distribution coefficient (K _d) between the soil solid phase and the liquid phase is a commonly used parameter to evaluate radionuclide behavior in soil. For reliable evaluation, the variability of the K _ddue to changes of environmental conditions should be clarified. In the present study, applicability of electrical conductivity (EC) to estimate effects of competing ions on K _dwas examined in batch experiments. The K _dof five radionuclides (⁶⁰Co, ⁵⁴Mn, ⁸⁵Sr, ¹³⁷Cs, ⁶⁵Zn) were found to be in inverse proportion to the supernatant EC. The K _dof ⁶⁰Co and ⁵⁴Mn were increasing at 7 days and no stable K _dcould be determined. For ⁸⁵Sr, ¹³⁷Cs, and ⁶³Zn, the regression equations obtained between the K _dof the equilibrium state and the supernatant EC were validated in another experiment; it is expected that their K _ds can be determined accurately using the EC. Because of its simplicity in measurements, using EC should be very practical for estimating effects of competing ions on K _dof selected radionuclides.  相似文献   

The Sequence Variations of Intron-3 of the α-Amylase Gene in Adzuki Bean   总被引：1，自引：0，他引：1  

JIN Wen-lin  Yamaguchi Hirofumi  Isigami Matiko  Yasuda Kentaro 《中国农业科学(英文版)》2003,2(10)

This study describes variation of intron-3 of a-amylase gene from 156 breeds of adzuki beansusing SSCP(single-strand conformation polymorphism)analysis. Based on a-amylase gene structure and se-quence, A pair of PCR primers, F (CCTACATTCTAACACACCCT) and R (GCATATTGTGCCAGTACAAT)were designed to amplify intron-3 fragments of a-amylase gene. 14 variant types were detected, including 13,9, 10, 4 variant types in the wild, weed, locally cultivated and modern brought-up adzuki beans respectively,9, 8, 7 variant types of the wild adzuki beans from Japan, China and Korea respectively, and some other va-riant types in the local adzuki beans from China and Bhutan. 60 % of subjects of cultivated races were found tobe EE type in the experiment. In addition, sequence analysis of intron-3 of α-amylase gene from 8 varianttypes reveals the evolution process of various variant types in adzuki beans.  相似文献