http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Jean-Pierre Arnaud (검색결과 4 건)
- 무료
- 기관 내 무료
- 유료
-
Cementitious nanostructures: Nanoporosity
Philippe Boch,Arnaud Plassais,Marie-Pierre Pomies,Jean-Pierre Korba,Nicolas Lequeux 한양대학교 세라믹연구소 2004 Journal of Ceramic Processing Research Vol.5 No.2
Relaxation 1H-NMR was used to characterize the nanostructure of cementitious pastes, together with measurements of hydration and mechanical properties. The influence of cure parameters (hydration time and temperature) and composition parameters (water-to-cement ratio and silica and superplasticizer addition) was studied. In silica-free materials, the relaxationtime curve shows five characteristic times, T1,i, each of them being related to a given class of porosity, ranging from very small pores, at the inside of C-S-H nanocrystallites, to large, capillary pores. In silica-containing materials, there is an appearance of a supplementary signal, which is due to a pozzolanic reaction.
-
SYNTHESIS AND MICROSTRUCTURE OF A NOVEL TiO2 AEROGEL–TiO2
YOSHIKAZU SUZUKI,MARIE-HÉLÈNE BERGER,DANIELA D'ELIA,PIERRE ILBIZIAN,CHRISTIAN BEAUGER,ARNAUD RIGACCI,JEAN-FRANÇOIS HOCHEPIED,PATRICK ACHARD 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2008 NANO Vol.3 No.5
TiO2 aerogel–10 mol% TiO2 nanowire composite was prepared by a sol–gel technique with the addition of TiO2 nanowires to TiO2 sol, followed by supercritical drying in CO2. TiO2 nanowires (anatase with minor rutile phases) as dispersoid were prepared by a hydrothermal process followed by calcination in air at 600°C. The TiO2 nanowires were dispersed in a 2-propanol/H2O/HNO3 solution, and the mixture was added drop by drop to a tetrabutyl orthotitanate [i.e. Ti (IV) n-butoxide] solution in 2-propanol. After gelation, the TiO2 alcogel–TiO2 nanowire composite was dried in supercritical CO2 to obtain the final, TiO2 aerogel–TiO2 nanowire composite. TEM analysis revealed that a unique "nanowire network" structure was formed withinthe mesoporous aerogel matrix. The aerogel–TiO2 nanowire composite had a relatively large surface area 427 m2/g, with mesopores ~ 16 nm in diameter and a pore of volume of 1.63 cm3/g.
-
Postoperative biological and clinical outcomes following uncomplicated pancreaticoduodenectomy
Emilie Lermite,Tao Wu,Alain Sauvanet,Christophe Mariette,Francois paye,Fabrice Muscari,Antonio Sa Cunha,Bernard Sastre,Jean-Pierre Arnaud,Patrick Pessaux 한국간담췌외과학회 2016 Annals of hepato-biliary-pancreatic surgery Vol.20 No.1
Backgrounds/Aims: The aim of this study was to describe clinical and biological changes in a group of patients who underwent pancreaticoduodenectomy (PD) without any complication during the postoperative period. These changes reflect the “natural history” of PD, and a deviation should be considered as a warning sign. Methods: Between January 2000 and December 2009, 131 patients underwent PD. We prospectively collected and retrospectively analyzed demographic data, pathological variables, associated pathological conditions, and preoperative, intraoperative, and postoperative variables. Postoperative variables were validated using an external prospective database of 158 patients. Results: The mean postoperative length of hospital stay was 20.3±4 days. The mean number of days until removal of nasogastric tube was 6.3±1.6 days. The maximal fall in hemoglobin level occurred on day 3 and began to increase after postoperative day (POD) 5, in patients with or without transfusions. The white blood cell count increased on POD 1 and persisted until POD 7. There was a marked rise in aminotransferase levels at POD 3. The peak was significantly higher in patients with hepatic pedicle occlusion (866±236 IU/L versus 146±48 IU/L; p<0.001). For both γ-glutamyl transpeptidase and alkaline phosphatase, there was a fall on POD1, which persisted until POD 5, followed with a stabilization. Bilirubin decreased progressively from POD 1 onwards. Conclusions: This study facilitates a standardized biological and clinical pathway of follow-up. Patients who do not follow this recovery indicator could be at risk of complications and additional exams should be made to prevent consequences of such complications.
-
Postoperative biological and clinical outcomes following uncomplicated pancreaticoduodenectomy
Emilie Lermite,Tao Wu,Alain Sauvanet,Christophe Mariette,Francois paye,Fabrice Muscari,Antonio Sa Cunha,Bernard Sastre,Jean-Pierre Arnaud,Patrick Pessaux 한국간담췌외과학회 2016 한국간담췌외과학회지 Vol.20 No.1
Backgrounds/Aims: The aim of this study was to describe clinical and biological changes in a group of patients who underwent pancreaticoduodenectomy (PD) without any complication during the postoperative period. These changes reflect the “natural history” of PD, and a deviation should be considered as a warning sign. Methods: Between January 2000 and December 2009, 131 patients underwent PD. We prospectively collected and retrospectively analyzed demographic data, pathological variables, associated pathological conditions, and preoperative, intraoperative, and postoperative variables. Postoperative variables were validated using an external prospective database of 158 patients. Results: The mean postoperative length of hospital stay was 20.3±4 days. The mean number of days until removal of nasogastric tube was 6.3±1.6 days. The maximal fall in hemoglobin level occurred on day 3 and began to increase after postoperative day (POD) 5, in patients with or without transfusions. The white blood cell count increased on POD 1 and persisted until POD 7. There was a marked rise in aminotransferase levels at POD 3. The peak was significantly higher in patients with hepatic pedicle occlusion (866±236 IU/L versus 146±48 IU/L; p<0.001). For both γ-glutamyl transpeptidase and alkaline phosphatase, there was a fall on POD1, which persisted until POD 5, followed with a stabilization. Bilirubin decreased progressively from POD 1 onwards. Conclusions: This study facilitates a standardized biological and clinical pathway of follow-up. Patients who do not follow this recovery indicator could be at risk of complications and additional exams should be made to prevent consequences of such complications.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
