Increasing of adhension of aggregate to matrix in PIC

The work presents the results of the research on the application of aggregate impregnated with poly/methyl methacrylate/ in preparing PIC. The influence of the vinyl-tri /β-metoxyetoxy/ silane /silane A-172/ as coupling-agent in PIC was studied.     

Implementing automated residential demand response in South Korea: Consumer preferences and market potential

In recent years, electricity demand response (DR) has attracted attention as the most cost-effective way to balance the electricity grid. This study analyzes the preferences of South Korean energy consumers on residential DR and calculated the potential capacity of peak reduction in summer. The estimation demonstrates that consumers have heterogeneous preferences for automated residential DR programs and highly value reducing their monthly electricity bills. A scenario analysis shows that approximately 60.0% of metropolitan consumers in South Korea would participate in a residential DR program, and the corresponding reduction in the peak load is forecasted to be approximately 1.74 GW.     

Bezier曲面建模方法研究与实现

为了使Bezier曲面造型工作变得简单快捷,提出了一种Bezier曲面快速建模方法。该方法使用MATLAB软件编写的程序来表示Bezier曲面并把曲面数据转化成数据点的信息,在CAD软件中导入数据点从而完成Bezier曲面的建模。试验结果表明,运用该方法设计的Bezier复杂轮廓曲面精度高,过程简单快速,为Bezier曲面的高效加工提供了保证。     

Influence and Optimization of Surface Roughness on Surface Integrity during Turning Using Grey Relational Analysis

Current machining studies have reported effects of prevalent and common factors, while ultra-high finish requires holistic approach to identify all factors and investigate their effects on machining of hard to machine materials. In this work, a less investigated yet important factor, roughness of the uncut surface, was studied, and its effects on the individual response, i.e., surface finish of the machined part, were found to be significant. AISI 316, which is mainly applied in strategic areas, was selected and three effective turning factors, cutting speed (A), feed rate (B), and roughness of the uncut surface (C) on three output responses including surface roughness of the machined surface (R_a), microhardness(HV), and material removal rate (MRR), were reported. Further, single response optimization of the individual output response and multi-response optimization of all the three responses were carried out. Taguchi L₉ orthogonal array based signal-to-noise (S/N) ratio method was used for individual response optimization, and grey relational analysis (GRA) was employed for multi-response optimization. Effects of the process factors on the output responses were evaluated through inclusive statistical analyses. The individual response optimization revealed that there was a considerable effect of roughness of the uncut surface on the machining performance. Results of the GRA illustrated that the speed during the cutting process and the feed rate had substantial trace on the surface integrity (indicated by R_a and HV) and production rate (indicated by MRR), while roughness of the uncut surface did not have a significant effect.     

Bezier曲面建模方法研究与实现

为了使Bezier曲面造型工作变得简单快捷,提出了一种Bezier曲面快速建模方法。该方法使用MATLAB软件编写的程序来表示Bezier曲面并把曲面数据转化成数据点的信息,在CAD软件中导入数据点从而完成Bezier曲面的建模。试验结果表明,运用该方法设计的Bezier复杂轮廓曲面精度高,过程简单快速,为Bezier曲面的高效加工提供了保证。     

An approximation formula for evaluating the number of possible schemes for 1FmP separation problems

Currently, the only formula available in the literature for calculating the number of possible separation schemes is limited to cases where products are pure components. For a general separation problem, however, products with multicomponents need be considered. This necessitates the development of a more general formula. In the current work, a definition for a separation scheme is proposed. This has led to the derivation of an approximation formula to calculate the number of possible alternative schemes for a one-feed, m-product (1FmP) separation problem involving simple sharp separators and multicomponent product streams. The resultant formula is useful for estimating the search space or effort in finding the optimal separation scheme for the problem.     

Creating viable utility conservation/load management programs

An electric utility can determine the value of demand-side programs (conservation and load management) in its service territory by following a procedure that involves several steps. The first three are general in nature:

• 1.(1) identify potential markets and end-use technologies to serve these markets,
• 2.(2) estimate technical potential,
• 3.(3) estimate cost-effective potential. The other eight are program-specific:
• 4.(4) develop program options that deliver end-use improvements to customers,
• 5.(5) estimate program participation, energy-use effects, and costs over time,
• 6.(6) project electricity use with and without the program,
• 7.(7) analyze program economics (benefits and costs),
• 8.(8) test the concept,
• 9.(9) implement a pilot program,
• 10.(10) implement a full-scale (systemwide) program,
• 11.(11) evaluate the program.