IEF/SDS PAGE双向电泳技术的建立

IEF/SDS PAGE双向电泳的高分离度是各种类型的单向PAGE无法比拟的.以Bio—Rad公司的PROTEAN Ⅱ xi 2-D电泳系统为基础,初步研究了IEF/SDS PAGE双向电泳技术建立的条件.

Optimization of fused deposition modeling process parameters:a review of current research and future prospects

Fused deposition modeling （FDM） is one of the most popuIar additive manufacturing technologies for various engineering applications. FDM process has been introduced commercially in early 1990s by Stratasys Inc., USA. The quality of FDM processed parts mainly depends on careful selection of process variables. Thus, identifica- tion of the FDM process parameters that significantly affect the quality of FDM processed parts is important. In recent years, researchers have explored a number of ways to improve the mechanical properties and part quality using various experimental design techniques and concepts. This article aims to review the research carried out so far in determining and optimizing the process parameters of the FDM process. Several statistical designs of experiments and optimization techniques used for the determination of optimum process parameters have been examined. The trends for future FDM research in this area are described.

叙事革命与身体政治——奥地利当代女性文学中的实验性书写

在奥地利文坛叙事实验与语言批判进入高峰期的上世纪70—80年代,西方女性主义文学批评的发展也达到了高潮。后结构女性主义一方面为分析当代与经典文本提供了新的理论手段,另一方面也潜移默化地影响着作家们的创作,使得美学和叙述上的抵抗直到今天仍然是奥地利女性文学的一个核心特征。本文尝试以克里斯蒂娃的"符号穹若"理论为基础,从拆解线性叙事时间、分裂叙事声音和诗化叙事语言三个方面对奥地利当代女性先锋文本中"实验性书写"与"阴性书写"两者之间的互动模式进行一次初步的探索。