Wireless camera nodes deployment by a teleoperated mobile robot for construction of sensor network

Hideo Sato,Kuniaki Kawabata,Tsubota Yugo,Hayato Kaetsu,Tsuyoshi Suzuki 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8

The objective of our research is to develop a wireless sensor network construction system by teleoperatedmobile robot. Our proposed system is that mobile robot carries the sensor nodes and deploys them for constructingwireless network in the working environment. For deployment of the sensor nodes, we introduced to estimatemaintainable data transfer speed based on statistic approach. When estimated transfer speed is over required one, the operator can determine to place the sensor nodes and establish wireless sensor network. As the experimental result by prototype system with proposed method, it was confirmed that data transfer speed on constructed network could be maintained over required one.

Information Gathering by wireless camera node with Passive Pendulum Mechanism

Hideo Sato,Kuniaki Kawabata,Tsuyoshi Suzuki,Hayato Kaetsu,Yasushi Hada,Yoshito Tobe 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10

After the earthquake, it is very important to recognize the situation of the disaster area as soon as possible. Therefore, the objective of our research is to realize information gathering system applying wireless sensor network technology. This paper describes about development of a novel camera node for gathering the information and also experimental results by using the camera node via wireless multi-hop ad-hoc network. The wireless camera node consists of a small Linux embedded computer, a GPS adaptor, a CMOS camera with fish-eye lens and passive pendulum mechanism for maintain uniform posture of build-in camera passively. Thus, the wireless camera node can be set easily only to roll it up on the rough terrain. The developed node also can deliver gathered environmental information (video) to remote site by multi-hop transferring. It is experimented that the prototype can transfer the captured video information in the wireless ad-hoc network.

Evaluation of 131I (monoiodide) BSP for Clinical Studies

Ueda, Hideo,Iro, Masahiro,Kurata, Kunio,Yamada, Hideo,Iwase, Tohru,Migita, Tohru,Kameda, Haruo,Kato, Sadatake,Sato, Noboru,Ide, Kazuko,Wakebayashi, Takao 대한핵의학회 1971 핵의학 분자영상 Vol.5 No.1

"In 1925 Rosenthal and White introduced a bromosulfophthalein (BSP) dye retention test as a sensitive indicator of liver function. Even now it is regared as one of the most sensitive agents for the detection of non-icteric liver disease (liver cirrhosis, early stage of acute-hepatitis and hepatic tumor). BSP accumulates in the liver cells, conjugates with glutathione and is excreted into the bile. Therefore, a disorder in its excretion is due to a disturbance of one of these processes. Since bilirubin and BSP compete for uptake by the liver and increased serum bilirubin interferes with the colorimetric determination of BSP, it has been considered that BSP test is inappropriate for the differential diagnosis of jaundice conditions. It has been generally said that when jaundice is present, the BSP test is useless and should not be performed. In 1955, Taplin et al. labeled rose bengal, a dye similarly metabolized in the liver as BSP, with 131I and measured the hepatic excretion of this dye by external monitoring. Laster, Blahd et al. applied this method to the determination of the peripheral pool, succeeding in the diagnosis of chronic and subacute hepatic diseases without colorimetry. In 1968, Yamada, Taplin et al. suggested the possibility of differentiating so-called medical jaundice from surgical jaundice by scanning the subjects during 24 to 48 hours following intravenous injection of 131I-labeled rose bengal. As mentioned before, many authorities hold the opinion that BSP is not proper for the differential diagnosis of jaundice states. Some have tried to diagnose biliary tract obstruction by a malignant tumor by measuring BSP excretion into duodenal fluid and others by quantitating changes in serum levels of conjugated and free BSP. Furthermore, Burton et al. reported that in patients with extrahepatic obstructive jaundice, BSP retention was observed for 24 days after its administration. From a consideration of all these finding we came to a conclusion that the differential diagnosis of various jaundice states, (medical, surgical and constitutional) is possible by sequential scanning with radioisotope-labeled BSP, as with rose bengal, in accordance with procedures described by Yamada, Taplin et al. The evidence suggested that labeled BSP might make a more important contribution than rose bengal. "

Anomalous scaling behavior in a mixed-state Hall effect of a cobalt-doped BaFe2As2epitaxial film with a high critical current density over 1 MA/cm2

Sato, Hikaru,Katase, Takayoshi,Kang, Won Nam,Hiramatsu, Hidenori,Kamiya, Toshio,Hosono, Hideo American Physical Society 2013 Physical review. B, Condensed matter and materials Vol.87 No.6

The cooperation of Industrial Education and Engineering Education in Japan -A look at university entrance examinations and curricula developed especially for graduates of technical high schools-

Sato Takashi,Ohkawa Hideo,Goda Masaki,Maruyama Takeo,Hasegawa Tomiichi,Sengoku Masakazu Korean Society for Engineering Education 2005 공학교육연구 Vol.8 No.2

일본의 공업고등학교 졸업생들은자신의 전공 영역에서는 충분한 기능을 보여줄 수 있을지라도 국립대학 입학을 위한 시험을 통과하기에는 어려운 실정이다. Niigata대학, Nagasaki 대학 그리고 Toyama 대학의 공학부 교수들은 대학 입학 시험을 위한 과제를 마련하기 위하여 1994년부터 공동으로 노력을 기울이고 있으며, 학생들의 교육적 배경과 필요에 부합하는 일반 교육과정을 설치하고 보충수업을 제공하고 있다. 이러한 프로젝트가 공식적으로는 1999년 종료되었지만 Niigata 대학에서 계속적으로 진행되고 있다. While graduates of Japan's technical high schools might demonstrate skills in a given specialty, they would be hard-pressed in any attempt to pass national universities' notorious entrance examinations. In a collaborative effort begun in 1994, the faculties of engineering at Niigata, Nagasaki, and Toyama Universities set about the task of preparing entrance examinations, and a general curriculum geared to the needs and educational backgrounds of these students, offering them supplementary lessons. While the larger project officially ended in 1999, we are carrying the research forward in Niigata University.

Aero-Structural Optimization of a Wing Equipped with Winglets

Kazushige Sato,Hideo Iso 한국항공우주학회 2008 한국항공우주학회 학술발표회 논문집 Vol.- No.-

The purpose of this work is to develop the winglets optimization process with trading between aerodynamic benefits and structural penalties. The evaluation model of winglets has been developed using CFD (Computational Fluid Dynamics) coupled with wing structure models. A wing aero-elastic deformation at the flight condition is estimated using a beam model and air-load obtained from CFD (Euler code). Consequently, the aerodynamic performance of a wing equipped with winglets is evaluated at the 1-G night shape including wing aero-elastic penalties. The weight impacts are evaluated by resizing wing structure models to resist critical loads with the winglets. The evaluation model has been extended to optimization process using response surface method (RSM). The optimization process has been applied to design of winglets for a small civil airplane (The MTOW is 55ton). In present work. the winglet design variables consist of a span, a cant angle and an incidence. Wing twist distribution is also considered as a design variable to optimize the load distribution of wing-winglet configuration and correct wing shape at 1-G cruise condition. As a result, optimized wing with winglets provides significant cruise drag reduction with less weight impacts.

Comparison of the Effect of Vitamin K2 and Risedronate on Trabecular Bone in Glucocorticoid-Treated Rats: A Bone Histomorphometry Study

Jun Iwamoto,Hideo Matsumoto,Tsuyoshi Tadeda,Yoshihiro Sato,James K. Yeh 연세대학교의과대학 2009 Yonsei medical journal Vol.50 No.2

Purpose: To compare the effect of vitamin K2 and risedronate on trabecular bone in glucocorticoid (GC)-treated rats. Materials and Methods: Forty-eight Sprague-Dawley female rats, 3 months of age, were randomized by the stratified weight method into 5 groups according to the following treatment schedule: age-matched control, GC administration, and GC administration with concomitant administration of vitamin K2, risedronate, or vitamin K2 + risedronate. GC (methylprednisolone sodium succinate, 5.0 mg/kg) and risedronate (10 μg/kg) were administered subcutaneously three and five times a week, respectively. Vitamin K2 (menatetrenone, 30 mg/kg) was administered orally three times a week. At the end of the 8-week experiment, bone histomorphometric analysis was performed on trabecular bone of the tibial proximal metaphysis. Results: GC administration decreased trabecular bone mass compared with age-matched controls because of decreased bone formation (mineralizing surface, mineral apposition rate, and bone formation rate) and increased bone erosion. Vitamin K2 attenuated GC-induced trabecular bone loss by preventing GC-induced decrease in bone formation (mineralizing surface) and subsequently reducing GC-induced increase in bone erosion. Risedronate prevented GC-induced trabecular bone loss by preventing GC-induced increase in bone erosion although it also suppressed bone formation (mineralizing surface, mineral apposition rate, and bone formation rate). Vitamin K2 mildly attenuated suppression of bone formation (mineralizing surface) and bone erosion caused by risedronate without affecting trabecular bone mass when administered in combination. Conclusion: The present study showed differential effect of vitamin K2 and risedronate on trabecular bone in GC-treated rats. Purpose: To compare the effect of vitamin K2 and risedronate on trabecular bone in glucocorticoid (GC)-treated rats. Materials and Methods: Forty-eight Sprague-Dawley female rats, 3 months of age, were randomized by the stratified weight method into 5 groups according to the following treatment schedule: age-matched control, GC administration, and GC administration with concomitant administration of vitamin K2, risedronate, or vitamin K2 + risedronate. GC (methylprednisolone sodium succinate, 5.0 mg/kg) and risedronate (10 μg/kg) were administered subcutaneously three and five times a week, respectively. Vitamin K2 (menatetrenone, 30 mg/kg) was administered orally three times a week. At the end of the 8-week experiment, bone histomorphometric analysis was performed on trabecular bone of the tibial proximal metaphysis. Results: GC administration decreased trabecular bone mass compared with age-matched controls because of decreased bone formation (mineralizing surface, mineral apposition rate, and bone formation rate) and increased bone erosion. Vitamin K2 attenuated GC-induced trabecular bone loss by preventing GC-induced decrease in bone formation (mineralizing surface) and subsequently reducing GC-induced increase in bone erosion. Risedronate prevented GC-induced trabecular bone loss by preventing GC-induced increase in bone erosion although it also suppressed bone formation (mineralizing surface, mineral apposition rate, and bone formation rate). Vitamin K2 mildly attenuated suppression of bone formation (mineralizing surface) and bone erosion caused by risedronate without affecting trabecular bone mass when administered in combination. Conclusion: The present study showed differential effect of vitamin K2 and risedronate on trabecular bone in GC-treated rats.

Clinical predictors of the estimated glomerular filtration rate 1 year after radical nephrectomy in Japanese patients

Shuichi Shimada,Hideo Saito,Yoshihide Kawasaki,Shinichi Yamashita,Hisanobu Adachi,Narihiko Kakoi,Takashige Namima,Masahiko Sato,Atsushi Kyan,Koji Mitsuzuka,Akihiro Ito,Takuhiro Yamaguchi,Yoichi Arai 대한비뇨의학회 2017 Investigative and Clinical Urology Vol.58 No.4

Purpose: To evaluate renal function 1 year after radical nephrectomy (RN) for renal cell carcinoma, the preoperative predictors of postnephrectomy renal function were investigated by sex, and equations to predict the estimated glomerular filtration rate (eGFR) 1 year after RN were developed. Materials and Methods: A total of 525 patients who underwent RN between May 2007 and August 2011 at Tohoku University Hospital and its affiliated hospitals were prospectively evaluated. Overall, 422 patients were analyzed in this study. Results: Independent preoperative factors associated with postnephrectomy renal function were different in males and females. Preoperative eGFR, age, tumor size, and body mass index (BMI) were independent factors in males, while tumor size and BMI were not independent factors in females. The equations developed to predict eGFR 1 year after RN were: Predicted eGFR in males (mL/min/1.73 m2)=27.99−(0.196×age)+(0.497×eGFR)+(0.744×tumor size)−(0.339×BMI); and predicted eGFR in females=44.57−(0.275×age)+(0.298×eGFR). The equations were validated in the validation dataset (R2=0.63, p<0.0001 and R2=0.31, p<0.0001, respectively). Conclusions: The developed equations by sex enable better prediction of eGFR 1 year after RN. The equations will be useful for preoperative patient counseling and selection of the type of surgical procedure in elective partial or RN cases.

Structure analysis of membrane-reconstituted subunit c-ring of E. coli H+-ATP synthase by solid-state NMR

Todokoro, Yasuto,Kobayashi, Masatoshi,Sato, Takeshi,Kawakami, Toru,Yumen, Ikuko,Aimoto, Saburo,Fujiwara, Toshimichi,Akutsu, Hideo Springer-Verlag 2010 Journal of biomolecular NMR Vol.48 No.1

Comparison of the Effects of Alendronate and Alfacalcidol on Hip Bone Mineral Density and Bone Turnover in Japanese Men Having Osteoporosis or Osteopenia with Clinical Risk Factors for Fractures

Jun Iwamoto,Yoshihiro Sato,Mitsuyoshi Uzawa,Tsuyoshi Takeda,Hideo Matsumoto 연세대학교의과대학 2009 Yonsei medical journal Vol.50 No.4

Purpose: The comparative effects of alendronate and alfacalcidol on bone mineral density (BMD) and bone turnover have already been established in postmenopausal women with osteoporosis. An open-labeled prospective study was conducted to compare the treatment effects of alendronate and alfacalcidol on hip BMD and bone turnover in Japanese men with osteoporosis or osteopenia with clinical risk factors for fractures. Materials and Methods: One hundred twelve men with osteoporosis or osteopenia with clinical risk factors for fractures (mean age: 71.4 years) were randomly divided into two groups of 56 patients each: the alendronate (5 mg daily) and alfacalcidol (1 μg daily) groups. The BMD of the total hip, urinary level of cross-linked N-terminal telopeptides of type I collagen (NTX), and serum levels of bone-specific alkaline phosphatase (BSAP) were measured during the 12-month-treatment period. Results: Forty-five patients in the alendronate group and 42 patients in the alfacalcidol group completed the trial. Alendronate increased BMD (+2.3% at 12 months) following reductions in the urinary level of NTX (-46.4% at 3 months) and serum level of BSAP (-34.1% at 12 months), while alfacalcidol sustained BMD (-1.9% at 12 months) as well as the urinary level of NTX (+13.2% at 3 months) and serum level of BSAP (+1.8% at 12 months). Conclusion: The present study confirmed that alendronate has better efficacy than alfacalcidol (active control) in increasing hip BMD and reducing bone turnover in Japanese men with osteoporosis or osteopenia with clinical risk factors for fractures. Purpose: The comparative effects of alendronate and alfacalcidol on bone mineral density (BMD) and bone turnover have already been established in postmenopausal women with osteoporosis. An open-labeled prospective study was conducted to compare the treatment effects of alendronate and alfacalcidol on hip BMD and bone turnover in Japanese men with osteoporosis or osteopenia with clinical risk factors for fractures. Materials and Methods: One hundred twelve men with osteoporosis or osteopenia with clinical risk factors for fractures (mean age: 71.4 years) were randomly divided into two groups of 56 patients each: the alendronate (5 mg daily) and alfacalcidol (1 μg daily) groups. The BMD of the total hip, urinary level of cross-linked N-terminal telopeptides of type I collagen (NTX), and serum levels of bone-specific alkaline phosphatase (BSAP) were measured during the 12-month-treatment period. Results: Forty-five patients in the alendronate group and 42 patients in the alfacalcidol group completed the trial. Alendronate increased BMD (+2.3% at 12 months) following reductions in the urinary level of NTX (-46.4% at 3 months) and serum level of BSAP (-34.1% at 12 months), while alfacalcidol sustained BMD (-1.9% at 12 months) as well as the urinary level of NTX (+13.2% at 3 months) and serum level of BSAP (+1.8% at 12 months). Conclusion: The present study confirmed that alendronate has better efficacy than alfacalcidol (active control) in increasing hip BMD and reducing bone turnover in Japanese men with osteoporosis or osteopenia with clinical risk factors for fractures.