同步调整大小在高级程序开发中应用较为普遍。当窗口大小变化时,同步调整窗口内各控件的大小或位置,以充分利用窗口及使窗口内容显得协调。本文介绍如何利用PowerBuilder基类库(PowerBuilder Foundation Class Library),实现窗口的同步...同步调整大小在高级程序开发中应用较为普遍。当窗口大小变化时,同步调整窗口内各控件的大小或位置,以充分利用窗口及使窗口内容显得协调。本文介绍如何利用PowerBuilder基类库(PowerBuilder Foundation Class Library),实现窗口的同步调整大小服务(Resize Service)功能,并对其功能进行了扩展。展开更多
电脑软件和硬件的不断发展,使美术设计师的思维灵感方便地变成可视图像。丰富多采的电子图像库,有效地支持设计师在创作空间中飞翔。作品“未来计划”中,象征远古的山脉,古代文明的金字塔,现代文明的摩天大楼,在设计师的艺术空间中并肩...电脑软件和硬件的不断发展,使美术设计师的思维灵感方便地变成可视图像。丰富多采的电子图像库,有效地支持设计师在创作空间中飞翔。作品“未来计划”中,象征远古的山脉,古代文明的金字塔,现代文明的摩天大楼,在设计师的艺术空间中并肩而立,地球的演变和人类文明的进程浓缩在方寸之间。一块飞升的大陆,载负着地球现代科技,在人类期盼的目光中,去迎接远方来宾,在即将召开的圆桌会议上,共同编修未来计作品仅应用了Photoshop和Corel图像库,在短时间中完成构思、设计和制作。 Follow me please,让我们一起开始制作过程。展开更多
Gibbsite is the usual precipitation product from alumina refineries with either Bayer or sintering process.However,the advantage of boehmite precipitation over gibbsite precipitation is the significant energy saving i...Gibbsite is the usual precipitation product from alumina refineries with either Bayer or sintering process.However,the advantage of boehmite precipitation over gibbsite precipitation is the significant energy saving in the subsequent calcination step.The current investigation takes a pragmatic approach to measure precipitation ratios,determine product phase,morphology and particle size distribution,and assess the impacts and adjustment capability of main parameters such as seed,temperature,ethanol medium,and supersaturation on the precipitation kinetics and alumina hydrate type during co-precipitation process.The results clarify that gibbsite and boehmite both can be precipitated from supersaturated sodium aluminate solutions simultaneously,and the competitive formation between Al(OH)3 and γ-AlOOH determines the main precipitate phases from pregnant liquor.Boehmite seeds,high temperature and ethanol addition can promote the boehmite precipitation and improve the mass fraction of boehmite in products.Co-precipitation changes the multimodal distribution of seeds to a normal and well distribution of products,and the particle size is more than several times that of seeds.展开更多
文摘同步调整大小在高级程序开发中应用较为普遍。当窗口大小变化时,同步调整窗口内各控件的大小或位置,以充分利用窗口及使窗口内容显得协调。本文介绍如何利用PowerBuilder基类库(PowerBuilder Foundation Class Library),实现窗口的同步调整大小服务(Resize Service)功能,并对其功能进行了扩展。
文摘电脑软件和硬件的不断发展,使美术设计师的思维灵感方便地变成可视图像。丰富多采的电子图像库,有效地支持设计师在创作空间中飞翔。作品“未来计划”中,象征远古的山脉,古代文明的金字塔,现代文明的摩天大楼,在设计师的艺术空间中并肩而立,地球的演变和人类文明的进程浓缩在方寸之间。一块飞升的大陆,载负着地球现代科技,在人类期盼的目光中,去迎接远方来宾,在即将召开的圆桌会议上,共同编修未来计作品仅应用了Photoshop和Corel图像库,在短时间中完成构思、设计和制作。 Follow me please,让我们一起开始制作过程。
基金Projects(50704030) supported by the National Natural Science Foundation of ChinaProject(KGCX2-YW-321-2) supported by the Knowledge Innovation Program of the Chinese Academy of Sciences
文摘Gibbsite is the usual precipitation product from alumina refineries with either Bayer or sintering process.However,the advantage of boehmite precipitation over gibbsite precipitation is the significant energy saving in the subsequent calcination step.The current investigation takes a pragmatic approach to measure precipitation ratios,determine product phase,morphology and particle size distribution,and assess the impacts and adjustment capability of main parameters such as seed,temperature,ethanol medium,and supersaturation on the precipitation kinetics and alumina hydrate type during co-precipitation process.The results clarify that gibbsite and boehmite both can be precipitated from supersaturated sodium aluminate solutions simultaneously,and the competitive formation between Al(OH)3 and γ-AlOOH determines the main precipitate phases from pregnant liquor.Boehmite seeds,high temperature and ethanol addition can promote the boehmite precipitation and improve the mass fraction of boehmite in products.Co-precipitation changes the multimodal distribution of seeds to a normal and well distribution of products,and the particle size is more than several times that of seeds.
