Oda Yusuke, Aikawa Shin-ichi, Kawarasaki Satoko, Kato Shigeru, Suganuma Hideki, Tanouchi Hiroyuki, Kojima Toshinori
{"title":"Selection of Tree Species for Afforestation of Salt-Affected Land","authors":"Oda Yusuke, Aikawa Shin-ichi, Kawarasaki Satoko, Kato Shigeru, Suganuma Hideki, Tanouchi Hiroyuki, Kojima Toshinori","doi":"10.11190/JER.14.227","DOIUrl":"https://doi.org/10.11190/JER.14.227","url":null,"abstract":"","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":"75580491","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}
{"title":"Speciation Analysis of Chromium in Environmental Waters in Niigata Prefecture by Applying Size Fractionation and Ion-Exchange Methods","authors":"Lu He, Jiao Yurong, Kano Naoki, Imaizumi Hiroshi","doi":"10.11190/JER.14.239","DOIUrl":"https://doi.org/10.11190/JER.14.239","url":null,"abstract":"","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":"77348982","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}
H. Tanouchi, Shin-ichi Aikawa, S. Kawarasaki, Utsugi Hajime, Hamano Hiroyuki, Saito Masahiro, A. Kinnear, Kojima Toshinori, Yamada Koichi
{"title":"Examination of Biomass Production by Afforestation Technologies in Arid Land of Low-Latitude Zone","authors":"H. Tanouchi, Shin-ichi Aikawa, S. Kawarasaki, Utsugi Hajime, Hamano Hiroyuki, Saito Masahiro, A. Kinnear, Kojima Toshinori, Yamada Koichi","doi":"10.11190/JER.14.183","DOIUrl":"https://doi.org/10.11190/JER.14.183","url":null,"abstract":"","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":"86409303","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}
{"title":"Investigation of the density advantage of the iron slag in stabilizing hydraulic channel bedforms","authors":"Syamsidik, S. Aoki","doi":"10.11190/JER.14.201","DOIUrl":"https://doi.org/10.11190/JER.14.201","url":null,"abstract":"","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":"79788468","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}
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.
{"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}
{"title":"Stretch - Draw Forming Process Using Stepped Blank Holder To Reduce The Production Energy","authors":"Muranaka Takayuki, Okada Masato, Kinuya Yasunori","doi":"10.11190/JER.15.27","DOIUrl":"https://doi.org/10.11190/JER.15.27","url":null,"abstract":"","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":"75885392","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}
Kitahara Kiyoshi, Hasegawa Hiroshi, Mae Misako, Tada Hiromi, Rahaman Mohammad Azizur, Maki Teruya, Ueda Kazumasa
{"title":"Influence of Eutrophication on Arsenic Speciation in Lake Waters","authors":"Kitahara Kiyoshi, Hasegawa Hiroshi, Mae Misako, Tada Hiromi, Rahaman Mohammad Azizur, Maki Teruya, Ueda Kazumasa","doi":"10.11190/JER.14.251","DOIUrl":"https://doi.org/10.11190/JER.14.251","url":null,"abstract":"","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":"81916352","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}
Yokota Kuriko, N. Osamu, Yamane Syozo, Honda Akio, Isezaki Yukihiro
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.
{"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}
{"title":"Biomimetic Coating of Hydroxyapatite Layer on Organic Substrates for Removal of Formaldehyde","authors":"T. Kawai, A. Takeuchi, C. Ohtsuki","doi":"10.11190/JER.13.283","DOIUrl":"https://doi.org/10.11190/JER.13.283","url":null,"abstract":"","PeriodicalId":15612,"journal":{"name":"Journal of ecotechnology research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73752744","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}
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