Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Yoshiyuki Ohara"'
Autor:
Yukihiro Nakamoto, Kohei Doyama, Toshikatsu Haruma, Xingyan Lu, Kazuya Tanaka, Naofumi Kozai, Kenjin Fukuyama, Shigeru Fukushima, Yoshiyuki Ohara, Keiko Yamaji
Publikováno v:
Minerals, Vol 11, Iss 12, p 1337 (2021)
Mine drainage is a vital water problem in the mining industry worldwide because of the heavy metal elements and low pH. Rhizofiltration using wetland plants is an appropriate method to remove heavy metals from the water via accumulation in the rhizos
Externí odkaz:
https://doaj.org/article/c3f21840fecc4be1bc31e2c390b50e3f
Autor:
Tatsuya Kato, Yohei Kawasaki, Masakazu Kadokura, Kohei Suzuki, Yasuhiro Tawara, Yoshiyuki Ohara, Chiharu Tokoro
Publikováno v:
Minerals, Vol 10, Iss 5, p 475 (2020)
Passive systems that utilize a natural power such as a pond, plant, or microorganisms, is expected to be a cost-effective method for acid mine drainage (AMD) treatment. The Ningyo-toge mine, a non-operational uranium mine located in Okayama Prefectur
Externí odkaz:
https://doaj.org/article/d411d72b632f41b09a300614f1af1dcb
Autor:
Hiroki Yokoo, Michael F. Hochella, Satoshi Utsunomiya, Toshihiko Ohnuki, Keiko Yamaji, Yoshiyuki Ohara, Kenjin Fukuyama, Motoki Uehara, Ilma Dwi Winarni, Takumi Oki
Publikováno v:
Gondwana Research. 110:270-282
Biogenic Mn oxides are reactive and ubiquitous in many Earth surface environments, yet their role in radionuclide sequestration at U mill-tailings sites still require an improved understanding at the nano- and molecular-scales. This study concerns th
Autor:
Ayaka Takeda, Takumi Oki, Hiroki Yokoo, Keisuke Kawamoto, Yuriko Nakano, Asumi Ochiai, Ilma Dwi Winarni, Mitsuki Kitahara, Kenta Miyoshi, Kenjin Fukuyama, Yoshiyuki Ohara, Keiko Yamaji, Toshihiko Ohnuki, Michael F. Hochella, Satoshi Utsunomiya
Publikováno v:
Chemosphere.
Biogenic manganese (Mn) oxides occur ubiquitously in the environment including the uranium (U) mill tailings at the Ningyo-toge U mine in Okayama, Japan, being important in the sequestration of radioactive radium. To understand the nanoscale processe
Autor:
Asumi Ochiai, Yoshiyuki Ohara, Satoshi Utsunomiya, Kenjin Fukuyama, Motoki Uehara, Ayaka Takeda, Toshihiko Ohnuki, Hiroki Yokoo, Keisuke Kawamoto, Michael F. Hochella, M. Takehara, Takumi Oki, Yuriko Nakano
Publikováno v:
Geochimica et Cosmochimica Acta. 298:207-226
Ferrihydrite, a hydrous ferric oxide, is ubiquitous in silica-rich mine drainage sites, although some uncertaity remains concerning its nanoscale texture and colloidal properties such as its association with amorphous silica and reactions with contam
Autor:
Yuta Abe, Yusuke Takemura, Masayuki Tanaka, Shigeo Okuda, Eisuke Iwasaki, Yoshiyuki Ohara, Hideaki Kojima, Minoru Kitago, Yutaka Nakano, Shutaro Hori, Yasushi Hasegawa, Michiie Sakamoto, Yohji Matsusaka, Yuko Kitagawa, Seiichiro Fukuhara, Hiroshi Yagi, Yohei Masugi
Publikováno v:
World Journal of Gastroenterology
BACKGROUND Endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) is a biopsy technique widely used to diagnose pancreatic tumors because of its high sensitivity and specificity. Although needle-tract seeding caused by EUS-FNA has been recentl
Publikováno v:
Resources Processing. 67:139-146
Autor:
Kazuya Tanaka, Xingyan Lu, Toshikatsu Haruma, Yoshiyuki Ohara, Kenjin Fukuyama, Shigeru Fukushima, Yukihiro Nakamoto, Naofumi Kozai, Keiko Yamaji, Kohei Doyama
Publikováno v:
Minerals, Vol 11, Iss 1337, p 1337 (2021)
Minerals; Volume 11; Issue 12; Pages: 1337
Minerals; Volume 11; Issue 12; Pages: 1337
Mine drainage is a vital water problem in the mining industry worldwide because of the heavy metal elements and low pH. Rhizofiltration using wetland plants is an appropriate method to remove heavy metals from the water via accumulation in the rhizos
Autor:
Yoshiyuki Ohara, Yohei Kawasaki, Kohei Suzuki, Masakazu Kadokura, Tatsuya Kato, Yasuhiro Tawara, Chiharu Tokoro
Publikováno v:
Minerals, Vol 10, Iss 475, p 475 (2020)
Minerals
Volume 10
Issue 5
Minerals
Volume 10
Issue 5
Passive systems that utilize a natural power such as a pond, plant, or microorganisms, is expected to be a cost-effective method for acid mine drainage (AMD) treatment. The Ningyo-toge mine, a non-operational uranium mine located in Okayama Prefectur
Autor:
Hiroshi Takeda, Shinichiro Yanase, Yoshiyuki Ohara, Toru Hyakutake, Nobuo Takahashi, Degang Rong, Kenya Kuwagi, Toshihiro Takami, Azri Alias, Kaoru Yokoyama, Toshinori Kouchi, Noritake Sugitsue
Publikováno v:
Journal of Chemical Engineering of Japan. 49:425-434
A simulation code based on the discrete element method (DEM) and computational fluid dynamics (CFD) coupling model was developed to simulate the behavior of radioactive cesium in waste incinerators. The waste lump was represented by particles in the