http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Sarcopenia affects conservative treatment of osteoporotic vertebral fracture
Hiroki Iida,Yoshihito Sakai,Tsuyoshi Watanabe,Hiroki Matsui,Marie Takemura,Yasumoto Matsui,Yasumoto Matsui,Tetsuro Hida,Kenyu Ito,Sadayuki Ito 대한골다공증학회 2018 Osteoporosis and Sarcopenia Vol.4 No.3
Objectives: Sarcopenia and osteoporosis affects activities of daily living and quality of elderly people. However, little is known about its impact on elderly locomotor diseases, such as osteoporotic vertebral fracture (OVF). There is no report investigating the influence of both sarcopenia and osteoporosis on outcomes of OVF. This study aimed to evaluate the clinical outcomes of OVF in elderly patients from sarcopenic perspectives. Methods: This prospective study was conducted with 396 patients, aged 65 years or more, hospitalized for the treatment of OVF (mean age, 81.9 ± 7.1 years; 111 males, 285 females). The primary outcome was the Japanese Orthopaedic Association (JOA) score for lumbar disease (at first visit, hospital discharge, and 1 year after treatment) and Barthel index (at the same time and before hospitalization). The second outcome was living place after discharge. Susceptibility to sarcopenia and osteoporosis were evaluated and clinical results of conservative treatment were compared. Results: Sarcopenia significantly affected Barthel index at first visit and discharge. Sarcopenia patients had significantly higher rate for discharge to nursing home and living in nursing home after 1 year than patients without sarcopenia. Osteoporosis significantly affected the JOA score at the first visit and the Barthel index before hospitalization, at the first visit, discharge, and after 1 year. Osteoporosis did not affect the living place at discharge and after 1 year. Conclusions: Sarcopenia and osteoporosis affected outcomes of conservative treatment for OVF; moreover, sarcopenia affected the living place of OVF patients at discharge and after 1 year
Hiroki Tanaka,Shimpei Matsusaki,Youichirou Baba,Yoshiaki Isono,Tomohiro Sase,Hiroshi Okano,Tomonori Saito,Katsumi Mukai,Tetsuya Murata,Hiroki Taoka 대한소화기내시경학회 2018 Clinical Endoscopy Vol.51 No.2
Background/Aims: It is sometimes difficult to distinguish between malignant and benign biliary strictures using imaging studiesalone, and pathological diagnosis is necessary. The aim of this study was to determine the usefulness of endoscopic transpapillary tissuesampling and factors predictive of diagnostic accuracy. Methods: From April 2008 to December 2014, 136 patients underwent endoscopic transpapillary tissue sampling for malignantbiliary strictures. The cytological and histological findings were reported as negative, suspicious, or positive. Suspicious and positivefindings were defined as pathologically positive. Results: The sensitivity was 65.0% for forceps biopsy, 49.5% for brush cytology, 46.2% for bile aspiration cytology, and 21.9% forendoscopic nasobiliary drainage cytology. The combination of these procedures improved the sensitivity (72.8%). Endoscopictranspapillary tissue sampling was more sensitive for lesions of biliary origin (91.4%) than for extrabiliary lesions (66.3%). In surgicalcases, the sensitivity for tumors with an infiltrative growth pattern (53.3%) was significantly lower than for a tumor with an expandingor intermediate growth pattern (87.5%). Conclusions: Combining procedures can improve diagnostic accuracy. It may be possible to predict the sensitivity of endoscopictranspapillary tissue sampling by evaluating the etiology and tumor growth pattern using preoperative imaging studies.
3D printing CFD simulation results using structural mechanics
Hiroki Takeda,Yutaka Ohtake,Hiromasa Suzuki 한국CDE학회 2020 Journal of computational design and engineering Vol.7 No.3
Good visualizations of computational fluid dynamics (CFD) results are key to making the best use of them. In many cases, CFD results involve multidimensional data embedded in 3D, and it can be difficult to recognize such complicated 3D shapes when they are projected onto 2D displays. A promising alternative approach uses a 3D printer to build real objects representing the CFD results. In this paper, we present a method of 3D printing the isosurfaces of CFD results to visualize them. However, there is a problem that the isosurfaces are not connected. Therefore, to prevent the structure from breaking up, we must find a way to connect them, and we achieve this by using beams to generate a support structure. We take a structural mechanics approach, using an algorithm to optimize the support structure such that the printed object does not break under gravity, enabling us to hold it safely for observation.
Hiroki Hara 한양대학교 세라믹연구소 2013 Journal of Ceramic Processing Research Vol.14 No.S1
YVO4:Bi3+,Eu3+ nanophosphor is prepared from sodium orthovanadate and nitrates of yttrium, bismuth, and europium in a polyol solvent of diethylene glycol at 160 o C. The photoluminescence (PL) intensity of the nanophosphor is enhanced by a factor of 3.3 after silica coating via reverse micelle method. The gradual increase in the PL intensity is observed under the continuous excitation irrespective of silica coating. This increase in the PL intensity is attributed to the photooxidation of V4+ to V5+, as confirmed by electron spin resonance spectroscopy. Finally, a highly luminescent and photostable nanophosphor can be prepared by combination of photooxidation pre-treatment and silica coating.
Hiroki Matsui,Ayumi Mimura,Sakiko Maekawa,Tomomi Ban-Tokuda 아세아·태평양축산학회 2019 Animal Bioscience Vol.32 No.12
Objective: Homoacetogens play important roles in the production of acetate in the large intestine of monogastric mammals. However, their diversity in the porcine large intestine is still unknown. Marker gene analysis was performed to assess the effects of energy level on the diversity and population densities of homoacetogens in porcine feces. Methods: Crossbred pigs were fed high or low energy-level diets. The high-intake (HI) diet was sufficient to allow a daily gain of 1.2 kg. The low-intake (LI) diet provided 0.6 times the amount of energy as the HI diet. Genetic diversity was analyzed using formyltetrahydrofolate synthetase gene (FHS) clone libraries derived from fecal DNA samples. FHS DNA copy numbers were quantified using real-time polymerase chain reaction. Results: A wide variety of FHS sequences was recovered from animals in both treatments. No differences in FHS clone libraries between the HI and LI groups were found. During the experimental period, no significant differences in the proportion of FHS copy numbers were observed between the two treatment groups. Conclusion: This is the first reported molecular diversity analysis using specific homoacetogen marker genes from the large intestines of pigs. There was no observable effect of feed intake on acetogen diversity.
Hiroki Iwata,Yuji Okada,Kiyoshi Ohishi,Yuki Yokokura 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
This paper proposes a new compensation method for estimating temperature using a voltage disturbance observer. In conventinal resistance estimation method is weekness to other parameter variations in SPMSM, because it is for estimating potision control system. In addition, offline compensate method is hard, because rotor flux and inductance are changing depending on temperature. Hence, we proposed a method to estimate the temperature based on the motor model without the influence of back erectromotive force. However, problems such as voltage disturbances arise, because the system didnot consider the inductance variation depending on temperature. This paper proposes a new method to compensate these disturbances and confirm its effectiveness by experiments.