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Hayashi, Mitsuru,Yanagi, Tetsuo,Xinyu, Guo The Korean Society of Oceanography 2004 Journal of the Korean Society of Oceanography Vol.39 No.1
Difference of Dissolved Inorganic Phosphorus (DIP), Dissolved Inorganic Nitrogen (DIN) and Dissolved Silicate (DSi) budgets in the Bohai Sea between 1982 and 1992 related the decrease of the Yellow River discharge is discussed on the basis of observed data. The estuarine circulation in the Bohai Sea had been weakened from 1982 to 1992 due to the decrease of the Yellow River discharge and the average residence time of fresh water had become longer. DIN concentration increased but DIP and DSi concentrations decreased from 1982 to 1992 in the Bohai Sea. Primary production was regulated mainly by water temperature and DIN concentration in 1982 but it was regulated mainly by DIP concentration in 1992. Primary production was larger than decomposition plus bottom release and nitrogen fixation was larger than denitrification in 1982. However, decomposition plus bottom release was larger than primary production and denitrification was larger than nitrogen fixation in 1992 in the Bohai Sea.
Mitsuru Hayashi,Tetsuo Yanagi,Guo Xinyu 한국해양과학기술원 2004 Ocean science journal Vol.39 No.1
Difference of Dissolved Inorganic Phosphorus (DIP), Dissolved Inorganic Nitrogen (DIN) and Dissolved Silicate (DSi) budgets in the Bohai Sea between 1982 and 1992 related the decrease of the Yellow River discharge is discussed on the basis of observed data. The estuarine circulation in the Bohai Sea had been weakened from 1982 to 1992 due to the decrease of the Yellow River discharge and the average residence time of fresh water had become longer. DIN concentration increased but DIP and DSi concentrations decreased from 1982 to 1992 in the Bohai Sea. Primary production was regulated mainly by water temperature and DIN concentration in 1982 but it was regulated mainly by DIP concentration in 1992. Primary production was larger than decomposition plus bottom release and nitrogen fixation was larger than denitrification in 1982. However, decomposition plus bottom release was larger than primary production and denitrification was larger than nitrogen fixation in 1992 in the Bohai Sea.
NAOKI KISHI,SHINYA KATO,TAKESHI SAITO,JUNKI HAYASHI,DAIKI ITO,YASUHIKO HAYASHI,TETSUO SOGA,TAKASHI JIMBO 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2011 NANO Vol.6 No.6
We report the exploration of PEDOT:PSS/SWCNTs as a material for the hole transport layer of polymer solar cells. The electrical conductivity of PEDOT:PSS/SWCNT film was enhanced as compared to that of PEDOT:PSS because of the carrier transport pass through SWCNTs. Moreover, we have fabricated polymer solar cells with the hole transport layer of PEDOT:PSS/SWCNTs and demonstrated the improvement of a fill factor and short circuit current density in the polymer solar cells with the hole transport layer of PEDOT:PSS/SWCNT as compared to the PEDOT:PSS.
Truc Tam Vu,Yuichiro Morishita,Itaru Yugue,Tetsuo Hayashi,Takeshi Maeda,Keiichiro Shiba 대한척추외과학회 2015 Asian Spine Journal Vol.9 No.3
Study Design: Retrospective study. Purpose: To evaluate the radiological outcome of the surgical treatment of thoracolumbar burst fractures by using short segment posterior instrumentation (SSPI) and fusion. Overview of Literature: The optimal surgical treatment of thoracolumbar burst fractures remains a matter of debate. SSPI is one of a number of possible choices, yet some studies have revealed high rates of poor radiological outcome for this SSPI. Methods: Patients treated using the short segment instrumentation and fusion technique at the Spinal Injuries Center (Iizuka, Fukuoka, Japan) from January 1, 2006 to July 31, 2012 were selected for this study. Radiographic parameters such as local sagittal angle, regional sagittal angle, disc angle, anterior or posterior height of the vertebral body at admission, postoperation and final observation were collected for radiological outcome evaluation. Results: There were 31 patients who met the inclusion criteria with a mean follow-up duration of 22.7 months (range, 12–48 months). The mean age of this group was 47.9 years (range, 15–77 years). The mean local sagittal angles at the time of admission, post-operation and final observation were 13.1°, 7.8° and 14.8°, respectively. There were 71% good cases and 29% poor cases based on our criteria for the radiological outcome evaluation. The correction loss has a strong correlation with the load sharing classification score (Spearman rho=0.64, p <0.001). Conclusions: The loss of kyphotic correction following the surgical treatment of thoracolumbar burst fracture by short segment instrumentation is common and has a close correlation with the degree of comminution of the vertebral body. Patients with high load sharing scores are more susceptible to correction loss and postoperative kyphotic deformity than those with low scores.
Guarana Water Eextraction Thing of The Comparison with Acute Toxic and Learning Ability Effects
Suzuki, Ikukatsu,Gu, Yeun-Hwa,Hayashi, Ikuo,Takeuchi, Tetsuo,Takagi, Yasuyuki,Mizumoto, Norihite INSTITUTE OF ORIENTAL MEDICINE KYUNG-HEE UNIVERSIT 2002 JOURNAL OF ORIENTAL MEDICINE Vol.7 No.1
Central excited material is contained in Guarana water extraction thing, and the central excited material is thought to be caffeine, teopiline, and teobulomine by this experiment. And, the LD50 value of Guarana water extraction thing without a shell is calculated 2900mg/kg with though the LD50 value of Guarana warter extraction thing with the shell was calculated 1350mg/kg with by the Behrens-Karber method. An acute toxic examination due to the existence of the shell was done again and more than the above result as a future subject. The computation of the LD50 value and the analysis of the element of the shell could get it further again in fraction chromatography. It is examined where strong toxic material is contained, and it thinks that it is necessary to do specifying of the toxic material.
Patterns of Lumbar Disc Degeneration: Magnetic Resonance Imaging Analysis in Symptomatic Subjects
Ruangchainikom Monchai,Daubs Michael D.,Suzuki Akinobu,Xiong Chengjie,Hayashi Tetsuo,Scott Trevor P.,Phan Kevin,Wang Jeffrey Chun 대한척추외과학회 2021 Asian Spine Journal Vol.15 No.6
Study Design: Cross-sectional study. Purpose: To evaluate lumbar disc degeneration (LDD) on magnetic resonance imaging (MRI) in symptomatic subjects to accumulate baseline data on the pattern of degeneration. Overview of Literature: LDD plays an important role in the diagnosis and treatment of low-back pain in patients. Few studies have focused on the pattern of LDD to understand how the lumbar spine ages. Methods: This study included 1,095 patients (mean age, 44.29 years; range, 16–85 years) who underwent upright lumbar MRI. LDD was graded into five categories (I–V). Positive LDD was defined as grade III or greater. The prevalence and pattern of LDD were analyzed, and the correlations between age and total grade of LDD were evaluated. Results: The average number of LDD levels and the total grade of LDD increased with age. LDD moved cephalad with age. The rate of LDD increased rapidly during the decade before the prevalence of LDD and became >50%. In the single-level LDD group, the levels L5–S1 were the most common levels (60.3%). In the two-level group, L4–L5 and L5–S1 were the most common levels (53.5%). In the three-level group, L3–L4, L4–L5, and L5–S1 were the most common levels (55.7%). In the multilevel LDD group, contiguous multilevel disc degeneration (CMDD) was more common than the skipped level disc degeneration (SLDD). The levels L4–L5 were the most common levels in the CMDD group, and L5–S1 were the most common levels among SLDD. Conclusions: LDD was found to correlate with age, and the specific patterns and rates of LDD depended on lumbar disc level and age. These LDD pattern data can be used before spinal procedures to predict the probability of natural LDD progression with age.
Formation and characterization of MEH-PPV/PCBM-based bulk heterojunction solar cells
Takeo Oku,Syuichi Nagaoka,Atsushi Suzuki,Kenji Kikuchi,Yasuhiko Hayashi,Hayato Sakuragi,Tetsuo Soga 한양대학교 세라믹연구소 2008 Journal of Ceramic Processing Research Vol.9 No.6
Polymer/fullerene bulk heterojunction solar cells with poly[2-methoxy-5-(20-ethylhexoxy)-1,4-phenylenevinylene] (MEH-PPV), zinc-phthalocyanine (ZnPc) and 6,6-phenyl C61-butyric acid methyl ester (PCBM), were produced and characterized. A device based on MEH-PPV and PCBM provided better efficiency, fill factor and short-circuit current compared to those of a device on MEH-PPV(ZnPc) and PCBM. The solar cells with a MEH-PPV and PCBM structure showed a higher photoresponse in the range of 300 to 60 nm. The energy levels of the molecules were calculated and are discussed. Polymer/fullerene bulk heterojunction solar cells with poly[2-methoxy-5-(20-ethylhexoxy)-1,4-phenylenevinylene] (MEH-PPV), zinc-phthalocyanine (ZnPc) and 6,6-phenyl C61-butyric acid methyl ester (PCBM), were produced and characterized. A device based on MEH-PPV and PCBM provided better efficiency, fill factor and short-circuit current compared to those of a device on MEH-PPV(ZnPc) and PCBM. The solar cells with a MEH-PPV and PCBM structure showed a higher photoresponse in the range of 300 to 60 nm. The energy levels of the molecules were calculated and are discussed.