Journal of ecotechnology research最新文献_第9页

Selection of Tree Species for Afforestation of Salt-Affected Land 盐渍地造林树种选择研究

Journal of ecotechnology research Pub Date : 2009-01-01 DOI: 10.11190/JER.14.227

Oda Yusuke, Aikawa Shin-ichi, Kawarasaki Satoko, Kato Shigeru, Suganuma Hideki, Tanouchi Hiroyuki, Kojima Toshinori

引用次数: 1

Speciation Analysis of Chromium in Environmental Waters in Niigata Prefecture by Applying Size Fractionation and Ion-Exchange Methods 应用粒径分馏和离子交换法分析新泻县环境水体中铬的形态

Journal of ecotechnology research Pub Date : 2009-01-01 DOI: 10.11190/JER.14.239

Lu He, Jiao Yurong, Kano Naoki, Imaizumi Hiroshi

引用次数: 0

Examination of Biomass Production by Afforestation Technologies in Arid Land of Low-Latitude Zone 低纬度干旱区造林技术对生物质生产的影响

Journal of ecotechnology research Pub Date : 2009-01-01 DOI: 10.11190/JER.14.183

H. Tanouchi, Shin-ichi Aikawa, S. Kawarasaki, Utsugi Hajime, Hamano Hiroyuki, Saito Masahiro, A. Kinnear, Kojima Toshinori, Yamada Koichi

引用次数: 1

Investigation of the density advantage of the iron slag in stabilizing hydraulic channel bedforms 铁渣在稳定水工河道河床中的密度优势研究

Journal of ecotechnology research Pub Date : 2009-01-01 DOI: 10.11190/JER.14.201

Syamsidik, S. Aoki

引用次数: 0

Behavior of Polycyclic Aromatic Hydrocarbons in Roof Runoff Water 多环芳烃在屋顶径流水中的行为

Journal of ecotechnology research Pub Date : 2009-01-01 DOI: 10.11190/JER.14.215

Okugawa Koji, Amano Norimasa

引用次数: 1

Seasonal Dynamics of Bacterial Population Degrading Dimethylarsenic Acid in Lake Kahokugata 高泻湖细菌种群降解二甲基乙烯酸的季节动态

Journal of ecotechnology research Pub Date : 2009-01-01 DOI: 10.11190/JER.14.195

Hirota Wakana, Maki Teruya, Ueda Kaori, Shimada Takashi, Hasegawa Hiroshi, Ueda Kazumasa

{"title":"Seasonal Dynamics of Bacterial Population Degrading Dimethylarsenic Acid in Lake Kahokugata","authors":"Hirota Wakana, Maki Teruya, Ueda Kaori, Shimada Takashi, Hasegawa Hiroshi, Ueda Kazumasa","doi":"10.11190/JER.14.195","DOIUrl":"https://doi.org/10.11190/JER.14.195","url":null,"abstract":"The degradation processes of organoarsenic compounds in aquatic environments would depend on the bioactivities of microorganisms and significantly influence the cycles of the arsenic species. The concentrations of arsenic species were determined in Lake Kahokugata. During the all season, the inorganic arsenic was detected, while the dimethylarsinic acid (DMAA) appeared in only winter seasons, and MMAA was not detected. Moreover, when DMAA was added to the water samples of Lake Kahokugata collected at every month from June in 2005 to November in 2006, the DMAA in the sample water of all seasons decreased and was converted to inorganic arsenic until the 28th day of incubation. According to the Most Probable Number (MPN) procedure, the DMAA-degrading bacteria were detected at cell densities ranged from 120 cells/mL to 2100 cells/mL during the all season. These facts suggested that the lake water of all season in Lake Kahokugata possessed the microbial activities for DMAA decomposition. To determine the composition of DMAA-degrading bacteria, the total 352 isolates obtained as dominated bacterial species were analyzed by the restriction-fragment-length polymorphism (RFLP) analysis of 16S rDNA genes. As a result, total 352 isolates were classified into 10 types of which the rates of total isolate numbers indicated seasonal changes. The diverse compositions of DMAA-degrading bacteria would seasonally change and control the organoarsenic degradation contributing to the seasonal arsenic cycles in Kahokugata.","PeriodicalId":15612,"journal":{"name":"Journal of ecotechnology research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79301704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stretch - Draw Forming Process Using Stepped Blank Holder To Reduce The Production Energy 采用阶梯式压边机的拉伸成形工艺，降低生产能耗

Journal of ecotechnology research Pub Date : 2009-01-01 DOI: 10.11190/JER.15.27

Muranaka Takayuki, Okada Masato, Kinuya Yasunori

引用次数: 1

Influence of Eutrophication on Arsenic Speciation in Lake Waters 富营养化对湖泊水体砷形态的影响

Journal of ecotechnology research Pub Date : 2009-01-01 DOI: 10.11190/JER.14.251

Kitahara Kiyoshi, Hasegawa Hiroshi, Mae Misako, Tada Hiromi, Rahaman Mohammad Azizur, Maki Teruya, Ueda Kazumasa

引用次数: 1

Vertical Distribution of Gaseous in Environmental Atmosphere at Mt. Fuji Using Passive Sampler 利用被动采样器研究富士山环境大气中气体的垂直分布

Journal of ecotechnology research Pub Date : 2009-01-01 DOI: 10.11190/JER.15.31

Yokota Kuriko, N. Osamu, Yamane Syozo, Honda Akio, Isezaki Yukihiro

{"title":"Vertical Distribution of Gaseous in Environmental Atmosphere at Mt. Fuji Using Passive Sampler","authors":"Yokota Kuriko, N. Osamu, Yamane Syozo, Honda Akio, Isezaki Yukihiro","doi":"10.11190/JER.15.31","DOIUrl":"https://doi.org/10.11190/JER.15.31","url":null,"abstract":"The vertical distributions of the concentrations of O 3 , NO, NO 2 and SO 2 at the experimental sites of Mt. Fuji in Japan were measured by the passive sampler from July to November in 2007. When the air mass came from the Asian continent, the vertical distribution of the concentration of O 3 increased with altitude up to 67.2ppbv at 3240m, while the vertical distribution of the concentration of O 3 decreased with altitude when the air mass came from the Pacific. The concentrations of NO and NO 2 increased with the altitude more than 2000 m. This phenomenon depended on the altitude. The SO 2 fluctuation was seemed to depend on the direction, where an air mass came and also on the altitude. When an air mass came from the continent, the concentration of SO 2 increased with altitude as O 3 , and when an air mass came from the Pacific, the increase of the concentration with altitude was found when the altitude was more than 2000m as NO and NO 2 . The vertical distribution of temperature and the humidity indicated changes of an air mass at 1700, 2500 and 3200m. The vertical distributions of NO, NO 2 and SO 2 and the meteorological data such as temperature and humidity suggested that an atmospheric boundary layer existed near an altitude of 2000 meters.","PeriodicalId":15612,"journal":{"name":"Journal of ecotechnology research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84093058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Biomimetic Coating of Hydroxyapatite Layer on Organic Substrates for Removal of Formaldehyde 有机基质上羟基磷灰石仿生涂层去除甲醛研究

Journal of ecotechnology research Pub Date : 2008-01-01 DOI: 10.11190/JER.13.283

T. Kawai, A. Takeuchi, C. Ohtsuki

引用次数: 0