《动态网站开发》课程教学改革探索

《动态网站开发》课程是中职学校计算机专业的核心课程,传统的授课方式以讲授理论为主,实际操作较少,这种方式很难适应现在中职学校的教学,必须打破传统的教学理念,对《动态网站开发》课程进行改革。     

橡胶对HIPS树脂落锤指标的影响

通过对高抗冲聚苯乙烯树脂出现产品落锤指标偏低问题的分析，从橡胶配量及其粒径大小上进行了改进，同时改进了工艺操作，采取了提高反应釜搅拌速度、降低乙苯浓度等措施。结果产品合格率达到９９％以上，优级品率达到９８％以上。     

Nanocrystalline CeO2 in SBA-15: Performance of Pt/CeO2/SBA-15 Catalyst for Water-gas-shift Reaction

CeO₂ particles confined within the pores of an SBA-15 mesoporous silica host were prepared by incipient wetness impregnation (IMP) and deposition precipitation (DP) methods. The materials were characterized by XRD, N₂-adsorption and temperature programmed reduction (TPR) to evaluate the structure, texture, and redox properties. The preparation procedure had significant impact on the assembling mode of CeO₂ inside the SBA-15 mesopores. A high dispersion of CeO₂ particles was achieved via DP, whereas the dispersion of CeO₂ prepared by IMP was found to be inhomogeneous and CeO₂ partially blocked the pores. The CO conversion in the water-gas-shift reaction was enhanced over 1 wt% Pt supported on CeO₂-modified SBA-15 obtained by DP.     

高职院校软件教学体系研究

本文在概述软件教学体系及其理论的基础上,结合软件教学的特点,阐述了软件教学体系的结构、应用环境以及在教学中将遇到的问题和解决对策,并描述了＂软件教学资源网系统＂建立的目的、设计方案、功能及开发环境。     

Study of different effect on foaming process of biodegradable bionolle in supercritical carbon dioxide

Microcellular foaming of biodegradable Bionolle in supercritical CO₂ has been produced. The effects of a series of variable factors, such as saturation temperature, saturation pressure, and depressurization time and step on the foam structures and density, were studied through measurement of density and SEM observation. The experimental results show that higher saturation temperatures lead to an increase in bulk densities; and different depressurization time and step result in different product cell morphology. In addition, at some saturation temperature, the orientation of the cells can be found in the product morphology. XRD experimental results show that the foaming treatment with SC CO₂ increased the crystallinity of Bionolle. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 2901–2906, 2006     

德化青花瓷器装饰艺术浅谈

我国福建德化是中国陶瓷文化的发祥地之一,也是我国著名的三大古瓷都之一。德化陶瓷制造历史悠久,瓷质优良,工艺精巧,驰名中外。德化青花瓷器“以白见长”的装饰表现特征,充分地显示出了德化青花瓷器独特的艺术风格和鲜明的地方色彩,其特征在福建青花瓷器中极为突出。德化青花图饰的画面情景交融、虚实相生,它随意、自然、洒脱,它无拘无柬、出神入化,其自由的个性与人文的情怀得以张显和抒发。德化青花瓷器独特的艺术风格和鲜明的地方特色在全国的青花瓷器中非常显著。     

《金银岛》中约翰·西尔弗的角色分析

约翰·西尔弗是小说<金银岛>中的一个重要角色.借助弗洛伊德的"唯乐原则"和"现实原则"分析了西尔弗的所作所为,指出了西尔弗的欲望和无奈的根源.     

浅析实践论视角下的马克思主义真理观

从实践论的视角分析马克思主义真理观.通过对真理的属性及其检验标准、真理和价值的关系问题的讨论,阐述了实践在马克思主义真理观中的作用和地位.     

MACD与K线图技术在证券投机中的实证研究

利用MACD趋势指标与K线形态图进行相互验证技术,改进一般的基于MACD的证券买卖准则。实证结果表明,基于改进后的MACD买卖准则进行证券投机,几乎能使投机者捕捉到每一波段行情,从而获取较高收益。     

Analysis of junction temperatures in high-power GaN-based LEDs

We presented the analysis of the incomplete conduction in bonding medium in high power GaN-based light-emitting diode (LED) packages. A numerical study was carried out with parametric model to understand the junction temperature variation due to bonding medium defects. Transient thermal measurement was performed to evaluate LED’s junction temperature. Thermal resistance from chip to lead frame was 20 K/W in our sample LED. It was suggested that only 60% of the surface area of the bonding medium was involved...