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New Aluminum-Based Amorphous Alloys with High Strength and Good Ductility
Inoue,Akihisa,Masumoto,Tsuyoshi 대한금속재료학회(대한금속학회) 1988 대한금속·재료학회지 Vol.26 No.8
New Al-based amorphous alloys with high strength, good ductility and high corrosion resistance have been produced by liquid quenching in Al-Y-Ni and Al-La-Ni systems. The tensile fracture strength (σ_f) and Vickers hardness reach 1140 MPa and 300 DPN for Al_(87)Y_8Ni_5 and 1080 Mpa and 260 DPN for Al_(87)La_8Ni_5. The specific strengths, defined by the ratio of σ₁to density, are as high as 34 to 38, which is much higher than those for conventional alloy steels, Al-based alloys, and Ti-based alloys. These new Al-base amorphous alloys are effected to be used in many applications as a new type of high-strength material with low density and high corrosion resistance.
Neuroimmune interactions and kidney disease
Sho Hasegawa,Tsuyoshi Inoue,Reiko Inagi 대한신장학회 2019 Kidney Research and Clinical Practice Vol.38 No.3
The autonomic nervous system plays critical roles in maintaining homeostasis in humans, directly regulating inflammation by altering the activity of the immune system. The cholinergic anti-inflammatory pathway is a wellstudied neuroimmune interaction involving the vagus nerve. CD4-positive T cells expressing β2 adrenergic receptors and macrophages expressing the alpha 7 subunit of the nicotinic acetylcholine receptor in the spleen receive neurotransmitters such as norepinephrine and acetylcholine and are key mediators of the cholinergic antiinflammatory pathway. Recent studies have demonstrated that vagus nerve stimulation, ultrasound, and restraint stress elicit protective effects against renal ischemia-reperfusion injury. These protective effects are induced primarily via activation of the cholinergic anti-inflammatory pathway. In addition to these immunological roles, nervous systems are directly related to homeostasis of renal physiology. Whole-kidney three-dimensional visualization using the tissue clearing technique CUBIC (clear, unobstructed brain/body imaging cocktails and computational analysis) has illustrated that renal sympathetic nerves are primarily distributed around arteries in the kidneys and denervated after ischemia-reperfusion injury. In contrast, artificial renal sympathetic denervation has a protective effect against kidney disease progression in murine models. Further studies are needed to elucidate how neural networks are involved in progression of kidney disease.
Anaerobic Biodegradation of PCP in Japanese Paddy Soils
김효근,Yasushi Inoue,Yuko Handa,Tsuyoshi Yasuta,Kyu-seung Lee,Arata Katayama 한국환경농학회 2004 한국환경농학회지 Vol.23 No.3
Seven soil samples were collected from paddy fields located nearby Nagoya city in Japan. All the soils were subjected to flooded condition and incubated with PCP at 30℃ for two months, and their anaerobic PCP degradation have been monitored by checking the PCP concentration of the soils at regular intervals. The degradation of PCP did not occur in the soils autoclaved two times before pre-incubation. On the other hand, all the soils showed significant PCP degradation in non-sterilized condition after 30 days of incubation, except for one soil sample (Yatomi), in which PCP was rarely degraded until 30 days of incubation. This result showed PCP disappearance in the paddy soils was mainly caused by microbiological activity, and depended upon the physicochemical characteristics of the soils.
김영환,증본건,조형호,김우열,정상명구 대한금속재료학회(대한금속학회) 1992 대한금속·재료학회지 Vol.30 No.9
An Al_(88)Y₂Ni_(10) amorphus alloy was found to exhibit a Large elongation reaching about 30% in the low temperature range of 450 to 475K. The temperature range agrees well with that where a lot of the primary fcc-Al particles with a ultrafine grain size precipitate homogeneously. It is therefore concluded that the appearance of the large elongation is due to a crystallization-induced plasticity phenomenon. The new phenomenon may be interpreted to occur through the sequent process of inhomogeneous deformation along shear plane, followed by preferential precipitation of Al particles on the shear plane resulting from the deformation-induced increase in temperature and then propagation of the deformation site to other site resulting from the precipitation-induced strengthening in the deformed area.
Anaerobic Biodegradation of PCP in Japanese Paddy Soils
Kim, Hyo-Keun,Inoue, Yasushi,Handa, Yuko,Yasuta, Tsuyoshi,Lee, Kyu-Seung,Katayama, Arata 한국환경농학회 2004 한국환경농학회지 Vol.23 No.3
Seven soil samples were collected from paddy fields located nearby Nagoya city in Japan. All the soils were subjected to flooded condition and incubated with PCP at 30℃ for two months, and their anaerobic PCP degradation have been monitored by checking the PCP concentration of the soils at regular intervals. The degradation of PCP did not occur in the soils autoclaved two times before pre-incubation. On the other hand, all the soils showed significant PCP degradation in non-sterilized condition after 30 days of incubation, except for one soil sample (Yatomi), in which PCP was rarely degraded until 30 days of incubation. This result showed PCP disappearance in the paddy soils was mainly caused by microbiological activity, and depended upon the physicochemical characteristics of the soils.