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Haruki Takayama,Tomohiko Shibata,Takahiro Ishii,Seiji Kojima 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.7
Ternary mixtures of water, sugar, and ionic liquid have been studied as new candidates for bioprotectants. To clarify the elastic properties and relaxation dynamics of the supercooled liquid and glassy states at low temperatures, the liquid-glass transitions were investigated by using a micro-Brillouin-scattering technique. The refractive index was measured accurately as a function of content and temperature to determine the sound velocity and the attenuation from Brillouin frequency shift and peak width. The relaxation times of structural relaxations related to liquidglass transitions were determined as functions of temperature. The Meyer-Neldel rule was found to hold for the activation energy and the prefactor of the Arrhenius law for the relaxation time.
Flow Evaluation of Pedestrian’s Field with Traffic Lines
Hideto Nishikado,Takahiro Iwata,Shigeru Takayama 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
This paper describes a system to extracttraffic lines of pedestrians flow outdoors and the investigation ofdynamic characteristics by using the density and directiondistribution of them. These characteristics relate to the congestion and latent dangerousness of field. They are difficult parameters defined with static images. The timetransition of these characteristics shows the dynamic situations of them. Furthermore, this paper presents pedestrian’s field evaluation focused on flow. These characteristics parameters are profitablefor evaluation of environmental design.
Takamasa Takahashi,Yuji Kaneoka,Atsuyuki Maeda,Yuichi Takayama,Hiroki Aoyama,Takahiro Hosoi,Kazuaki Seita 대한내시경로봇외과학회 2023 Journal of Minimally Invasive Surgery Vol.26 No.2
Purpose: In minimally invasive esophagectomy (MIE), it is important to reduce the rate of anastomotic leakage to ensure its safety. At our institute, the double-ligation method (DLM) has been introduced to insert and fix the anvil of the circular stapler for intracorporeal circular esophagojejunostomy in gastric surgery. We adopted this method for intrathoracic anastomosis (IA) in MIE. The aim of this study was to investigate the safety of IA with DLM in MIE. Methods: In this study, 48 patients diagnosed with primary middle or lower third segment thoracic esophageal carcinoma with clinical stage I, II, III or IV disease were retrospectively evaluated. Postoperative outcomes were assessed. Results: Among the 48 patients, 42 patients underwent laparo-thoracoscopic esophagectomy and IA using a circular stapler with the DLM. The average total operation time and thoracoscopic operation time were 433 and 229 minutes, respectively. The average pursestring suturing time was 4.7 minutes. The rates of anastomotic leakage and stenosis were 2.4% and 14.3%, respectively. The overall incidence of postoperative complications (Clavien- Dindo grade of ≥III) was 16.7%. The average postoperative stay was 16 days. Conclusion: The procedure of IA using a circular stapler with the DLM in MIE was safe and provided a low rate of anastomotic leakage.
Masaki Onoyama,Takeshi Tsuka,Tomohiro Imagawa,Tomohiro Osaki,Saburo Minami,Kazuo Azuma,Kazuhiko Kawashima,Hiroshi Ishi,Takahiro Takayama,Nobuhiko Ogawa,Yoshiharu Okamoto 대한수의학회 2014 JOURNAL OF VETERINARY SCIENCE Vol.15 No.1
Sixteen cases of malignant soft tissue sarcoma (STS; 10canines and six felines) were treated with a novel tripletherapy that combined photodynamic therapy, hyperthermiausing indocyanine green with a broadband light source, andlocal chemotherapy after surgical tumor resection. This tripletherapy was called photodynamic hyperthermal chemotherapy(PHCT). In all cases, the surgical margin was insufficient. Inone feline case, PHCT was performed without surgicalresection. PHCT was performed over an interval of 1 to 2 weeksand was repeated three to 21 times. No severe side effects,including severe skin burns, necrosis, or skin suture rupture,were observed in any of the animals. No disease recurrence wasobserved in seven out of 10 (70.0%) dogs and three out of six(50.0%) cats over the follow-up periods ranging from 238 to1901 days. These results suggest that PHCT decreases the riskof STS recurrence. PHCT should therefore be considered anadjuvant therapy for treating companion animals with STS inveterinary medicine.