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谈和谐班级的组建元素
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作者 黎先佑 《教育实践与研究》 2007年第01B期28-29,共2页
组成和谐班级的元素很多,主要有学生(包括班干部)、教师(涉及到学校领导)、民主、情感、目标、纪律、共性、习惯、进步、课外活动等等。
关键词 和谐班级 组建元素 纪律和民主
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Chronological Restoration of Fort Frontenac in 3D for Heritage Visualization
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作者 Mitsuyoshi Yabe Elizabeth Goins +3 位作者 Chris Jackson David Halbstein Shaun Foster Sue Bazely 《Journal of Civil Engineering and Architecture》 2015年第12期1463-1473,共11页
This paper is composed of three elements: 3D modeling, web design and heritage visualization on the basis of the chronological restoration of Fort Frontenac in 1673, 1675, 1680, 1685 and 1688, changing from narrow an... This paper is composed of three elements: 3D modeling, web design and heritage visualization on the basis of the chronological restoration of Fort Frontenac in 1673, 1675, 1680, 1685 and 1688, changing from narrow and plain to broad, grand features. The aim is to use computer graphic design to inform and create an interest in historical visualization by rebuilding Fort Frontenac using 3D modeling and interactive design. The final model can be integrated into an interactive website to learn more about the fort's historic importance. It is apparent that using computer graphics can save time and money when it comes to historical visualization. Visitors do not have to travel to the actual archaeological buildings and can simply use the web in their own homes to learn about this information virtually. In order to create a sophisticated restoration of archaeological buildings, meticulously assessing historical records will draw viewers into the visualizations, such as the historical world of Fort Frontenac. As a result, the completed restoration allows the viewers to effectively understand the fort's social system, habits and historical events. 展开更多
关键词 Heritage visualization 3D computer graphics interactive virtual design web design effective usage of learning.
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Synthesis and catalytic activity of Ln (III) complexes with an unsymmetrical Schiff base including multi“非汉字符号” C=N—groups 被引量:1
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作者 姚克敏 李宁 沈联芳 《Science China Chemistry》 SCIE EI CAS 2003年第1期75-83,共9页
A synthetic method for a new unsymmetrical Schiff base and its Ln(Ⅲ)complexes including multi > C = N — groups is reported. The complexes are characterized byelemental analysis, IR spectra, ~1H and ^(13)C NMR, es... A synthetic method for a new unsymmetrical Schiff base and its Ln(Ⅲ)complexes including multi > C = N — groups is reported. The complexes are characterized byelemental analysis, IR spectra, ~1H and ^(13)C NMR, especially 2D-COSY ~1H, ~1H NMR spectra. Thegeneral formula of the obtained complexes is [Ln_3(TBLY)(NO_3)_3] · nH_2O (Ln = La, n = 3; Ln = Nd,n=5; Ln = Gd, Dy, Yb, Y, n = 7), where TBLY = tetraglycol aldehyde-2,4-dihydroxy benzaldehydebis-lysine Schiff base. In addition, the evidence for existence of > C = CH — NH — group issupported by the AM1 method. The complexes obtained may be used as a catalyst. Conversion rate of80% with the viscosity-average molecular weight 220000 for the polymerization of methyl methacrylate(MMA) without addition of any cocatalyst has been obtained. 展开更多
关键词 schiff base with muiti > C = N group rare earth complex AM1 method catalytic activity
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The principles and practice of open fracture care, 2018 被引量:2
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作者 Amna Diwan Kyle R. Eberlin Raymond Malcolm Smith 《Chinese Journal of Traumatology》 CAS CSCD 2018年第4期187-192,共6页
The principles of open fracture management are to manage the overall injury and specifically prevent primary contamination becoming frank infection. The surgical management of these complex injuries includes debrideme... The principles of open fracture management are to manage the overall injury and specifically prevent primary contamination becoming frank infection. The surgical management of these complex injuries includes debridement & lavage of the open wound with combined bony and soft tissue reconstruction. Good results depend on early high quality definitive surgery usually with early stable internal fixation and associated soft tissue repair. While all elements of the surgical principles are very important and depend on each other for overall success the most critical element appears to be achieving very early healthy soft tissue cover. As the injuries become more complex this involves progressively more complex soft tissue reconstruction and may even requiring urgent free tissue transfer requiring close co-operative care between orthopaedic and plastic surgeons. Data suggests that the best results are obtained when the whole surgical reconstruction is completed within 48-72 h. 展开更多
关键词 Open fractures DEBRIDEMENT Bony stabilization Early healthy soft tissue cover
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