基于CruiseControl的持续集成实现方案

软件的开发过程决定着软件质量。在任何软件开发过程中都有一个重要的组成部分：得到可靠的软件创建版本。在分析传统集成模式的弊端基础上,提出采用持续集成的观点。阐明了持续集成的基础理论以及与持续集成相关的常见的误区和概念。分析了持续集成工具CruiseControl工作原理,最后提出了一种基于CruiseControl的持续集成实现方案。     

纳米粒子几何结构对膨胀型防火涂料阻燃和抑烟性能的影响

为了研究纳米粒子几何结构对膨胀型防火涂料阻燃和抑烟性能的影响,以聚磷酸铵(APP)-季戊四醇(PER)-三聚氰胺(MEL)-硼酸三聚氰胺(MB)为阻燃体系,硅丙乳液为成膜物质,分别添加球形纳米二氧化硅(Si O2)、经硅烷偶联剂KH560改性的管状碳纳米管(KH560–CNT)和片状水滑石(LDH)制备了3种水性膨胀型防火涂料。采用小室法、隧道法及模拟大板法研究了涂层的防火阻燃性能,再结合热重分析、扫描电镜分析和能谱分析,考察了涂层的热解性能和炭层结构。结果表明,球形Si O2和片状LDH能有效增强防火涂料的阻燃和抑烟性能,表现出较好的协效作用;管状KH560–CNT则会恶化防火涂料的阻燃和抑烟性能,表现出对抗作用。当纳米填料的质量分数为0.5%时,片状LDH表现出最优的协效作用,火焰传播比值为12.5,烟密度等级为14.1%。这是因为它能促进涂层在燃烧过程中形成更多的含磷和含硼交联结构,有效增强了炭层的致密性、连续性和隔热性能。     

基于自适应神经模糊推理系统的视频烟雾检测

提出一种基于自适应神经模糊推理系统的视频烟雾检测算法。从视频图像中提取烟雾特征,采用减法聚类确定模糊规则数,建立初始模糊系统。通过神经网络的自学习机制调整前提参数和结论参数,确定模糊推理规则。实验结果表明,与传统BP神经网络算法及支持向量机算法相比,该算法具有较优的ROC曲线特性。     

火灾烟雾的多波长衰减特性研究

采用多波长激光同时与火灾烟雾与非火灾气溶胶相作用，研究了火灾烟雾对波长激光的衰减特性，得到了熏香烟雾和柴油明火烟雾等5种典型火灾烟雾和非火灾气溶胶的3对波长消光系数比的数值。结果表明，消光系数比反映了气溶胶粒子对两个波长激光衰减的相对程度，仅与气溶胶本质特征有关，不同烟雾气溶胶的消光系数比的数值有明显差别。     

Modelling of light extinction by soot particles

A simplified model for the prediction of light extinction through combustion generated smoke is presented. The model builds upon existing theory and available experimental data to account for the principal factors that influence light extinction in participating media, including wavelength, primary particle size distribution and morphological structure of particle aggregation as well as multiple scattering among particles within a particle aggregation. Good agreement is demonstrated between the model predictions and experimental data in the visible and IR ranges. The model illustrates that as the mean particle size increases, the integral optical property of a soot cloud approaches that of monodisperse particles. It is postulated in the current study that the number of particles participating in multiple scattering is around 20 regardless of the real size of particle aggregation.     

Effect of smoke application to field‐grown Merlot grapevines at key phenological growth stages on wine sensory and chemical properties

Background and Aims: Smoke exposure of grapevines and development of smoke taint in wine are issues of increasing incidence and severity. There is limited understanding of the effect of phenological stage at the time of smoke exposure on taint development. The aim of this study was to demonstrate the variation in smoke uptake and taint development between and within seasons. Methods and Results: Smoke was applied to field‐grown Merlot grapevines at 12 stages of vine development over three growing seasons. Key periods of vine sensitivity to smoke taint in wine were (i) from shoots at 10 cm to full bloom (low levels of smoke taint); (ii) from berries at pea size to the onset of veraison (variable levels of smoke taint); and (iii) between 7 days post‐veraison and harvest (high levels of smoke taint). Conclusions: The severity of taint in wine varied depending on the phenological timing of grapevine smoke exposure. Taint was elevated when exposure occurred between 7 days post‐veraison and harvest. The carry‐over of smoke constituents the following season was not detectable in wine but yields were reduced. Significance of the Study: This is the first study to demonstrate the timing of smoke exposure to critically affect wine chemical and sensory characters. These effects were consistent and reproducible over three seasons.     

Comparison of methods for the analysis of smoke related phenols and their conjugates in grapes and wine

Background and Aims: Australian grape growers and winemakers have typically relied on guaiacol and 4‐methylguaiacol measurements to determine smoke exposure of grapes following bushfires or prescribed burns. However, the guaiacol and 4‐methylguaiacol content of grapes does not always correlate with the extent of taint in resultant wines. This study compared several methods for the analysis of smoke related phenols and their conjugates in grapes and wine, to determine their capacity as diagnostic assays for smoke exposure. Methods and Results: Smoke‐affected grapes were sourced from commercial vineyards exposed to bushfire smoke and from experimental field trials involving the application of smoke to grapevines, and small‐scale wines were made from a number of these samples. Several analytical methods were applied to grapes and wine to determine the concentration of smoke related phenols and their conjugates. Strong correlations were observed between the glycoconjugate content of smoke‐affected grapes and the concentration of guaiacol and 4‐methylguaiacol released following acid hydrolysis of juice. Conclusions: Where smoke‐affected grapes contain low or non‐detectable levels of guaiacol and 4‐methylguaiacol, analytical methods that quantify their glycoconjugate forms (either directly or indirectly) provide a better indication of the extent of smoke exposure. Significance of the Study: This is the first study to compare different methods for assessing smoke exposure in grapes and wine, through analysis of free and bound guaiacol and 4‐methylguaiacol. These methods will allow grape growers and winemakers to more reliably assess smoke exposure of grapes, enabling better informed decisions to be made with regards to harvesting and processing smoke‐affected grapes.     

光电成像末制导烟幕干扰效果评估研究

建立了光电成像末制导烟幕干扰模型和干扰效果评估模型,利用仿真的方法研究了烟幕干扰对光电成像末制导武器关键制导参数和运动参数的影响,进行了光电成像末制导干扰效果评估研究。     

催化裂化烟机振动原因分析及应对措施

通过对引起烟机振动值增加的因素进行分析,采取相应的措施,同时加强设备维护,减少工艺调整降低轴瓦振动,实现了机组长周期运行。     

多孔无机材料在卷烟减害降焦应用进展

多孔材料添加剂因其具有大比表面积、高效吸附及表面化学可修饰性而越来越受到烟草科技工作者的青睐。总结了微孔活性炭、分子筛和介孔材料作为吸附剂和催化剂降低卷烟烟气中的有害成分,并提出了今后多孔材料在卷烟烟气减害降焦中的研究方向。