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51.
描述一种基于情境演算的、意向驱动的ＡＯＰ语言－ＡＯＰＬＩＤ,并给出ＡＯＰＬＩＤ对追杀问题的程序设计实例。该语言克服了ＧＯＬＯＧ的缺点,能较好地处理动态变化领域的应用及反映多Ａｇｅｎｔ间的协作关系。 相似文献
52.
李光远 《重庆文理学院学报(自然科学版)》2009,28(6):33-36
系统容错需要在提供业务逻辑服务的基础上,透明地实现容错的需求．而要透明地实现容错,需要解决冗余资源的确定和管理,失效的检测以及失效的恢复．这些容错需求又将和系统业务逻辑纠缠在一起．所以,如何将系统业务逻辑和容错需求有效地编织在一起,使得系统能以高效、透明的容错能力为用户提供业务逻辑服务,一直是容错系统开发研究所关注的核心问题．AOP的出现,正好为解决容错系统将容错需求与业务逻辑的合理编织问题提供了一种有效的解决途径．本文正是在AOP方法的基础上,利用AOP方法将容错系统的各种业务逻辑定义为核心关注点,而将容错需求定义为不同的横切关注点,进而以不同的方面加以实现,最后以这些方面将业务逻辑有效地编织起来,从而既达成了系统业务逻辑,又满足了透明的容错需求． 相似文献
53.
面向方面的编程通过分离软件系统中的横切关注点,来进一步提高软件的可维护性和可复用性．分析了AOP产生的背景,剖析了AOP的本质思想和编织机制,总结了目前的研究状况并提出了与AOP相关的研究领域． 相似文献
54.
作为高级氧化技术之中的一个分支,催化臭氧化处理废水技术逐渐成为研究的热门领域.提高催化臭氧化效率的关键之处在于产生大量、持久的活性基团如·OH自由基,但其本质上涉及的是催化剂的选取问题.本文简要介绍了近年来均相催化剂和多相催化剂在催化臭氧化处理废水技术中的应用和研究进展. 相似文献
55.
The advanced oxidation process (AOP) reagents ozone (O3), O3/UV, O3/H2O2, and H2O2/Fe2+ (Fenton's reagent) were applied to the anionic and the non-ionic fluorinated surfactants perfluorooctanesulfonate (PFOS) and N-ethyl-N-(perfluoroalkyl)-sulfonyl-glycinic acid (HFOSA-glycinic acid) or N-ethyl-N-perfluoroalkyl sulfonylamido-2-ethanol polyethoxylates (NEtFASE-PEG), their methyl ethers (NEtFASE-PEG methyl ether) and partly fluorinated alkyl-ethoxylates (FAEO) dissolved in ultrapure water. To monitor the efficiencies of destruction samples were taken during the treatment period of 120 min. After sample concentration by C18-solid phase extraction (SPE) and desorption MS, coupled with atmospheric pressure chemical ionisation (APCI) or electrospray interface (ESI) was applied for detection. No elimination of PFOS was observed while HFOSA-glycinic acid and AOP treated non-ionic surfactants were eliminated by oxidation. Degradation products could be detected and identified. So PFOS was observed during HFOSA-glycinic acid oxidation. Polyethylene glycols (PEG) and PEG methyl ethers were generated from non-ionic fluorinated surfactants beside their oxidation products--aldehydes and acids--all identified by tandem (MS-MS) or multiple stage mass spectrometry (MSn). AOP treatment of FAEO blend resulted in a mixture of partly fluorinated alcohols, separated and identified using GC-MS. 相似文献
56.
首先分析了程序设计的发展，以及现代技术和经验在软件复用上所做的努力，提出一种新的结合OO和AO的编程方式的简单架构和基本实现． 相似文献
57.
要设计出一种通用的XML报文通信接口系统需要解决协议解耦、XML报文与数据库转储、开发工作量大3个关键性的问题,为此提出了解决问题的思路,接口系统的设计方案,并在科研课题中进行了应用,给出了进一步研发的构想.该接口系统的设计与实现已基本成型,取得了阶段性的成果. 相似文献
58.
《Arabian Journal of Chemistry》2022,15(11):104213
This study investigates the treatment of cutting oil wastewater from the automotive parts manufacturing industry to promote sustainability via the use of ‘used shot blasts’, which are the by-products of auto parts production. Used shot blasts are rich iron sources of Fe0, which becomes an effective catalyst in the Fenton reaction. A modified air-Fenton (MAF) system was proposed to generate hydroxyl radicals that eliminated recalcitrant organics in cutting oil wastewater. First, the Taguchi method, comprising the L18 orthogonal array design, was used to identify significant operation factors, including the size and amount of used shot blasts, initial pH, reaction time, mixing speed, initial cutting oil concentration, and air flow rate. Then, a central composite rotatable design coupled with response surface methodology (RSM) was used to determine the optimal conditions and model the influencing variables. The results provided three crucial variables for the cutting oil wastewater treatment through use of the MAF system: initial pH, the amount of used shot blasts, and initial cutting oil concentration. RSM was applied to reveal the optimum operating conditions, achieving a maximum removal efficiency of 92.82% for chemical oxygen demand (COD), 80.18% for total organic carbon (TOC), and 99.55% for turbidity within 45 min of operating the MAF system. The model agreed well with the experimental data, with coefficient of determination values of 0.9819, 0.9654, and 0.9715 for COD, TOC, and turbidity removal efficiency, respectively. Pseudo-second-order reaction kinetics fitted well for COD removal, with a rate constant of 0.0218 min?1 and hydrogen peroxide generation of 0.0169 M. Overall, the proposed MAF system was efficient and had a low operating cost (0.67 USD/m3). 相似文献
59.
《Arabian Journal of Chemistry》2022,15(11):104229
Biological treatment, due to the formation of hazardous chemicals to remove organic compounds such as dimethyl sulfoxide (DMSO) and N, N-dimethylacetamide (DMAC), has limited potential. Advanced oxidation processes (AOPs) are regarded as a viable alternative for treating molecules containing carbon-hydrogen bonds that cannot be broken down by traditional physico-chemical methods. In this investigation, various AOPs such as Photo-Fenton, Electro-Fenton, and Photo-Electro-Fenton processes were studied to treat wastewaters containing DMSO and DMAC. The effects of the operating parameters, including various initial concentrations of DMSO and DMAC, initial pH, reaction time, different concentrations of Fenton’s reagent, power of UV lamp, different concentrations of electrolytes, the distance between electrodes and current intensity, were investigated. The findings of the experiments revealed that a pH of 3 and a reaction time of 120 min were optimal. At 2000 mg L?1 of DMSO, maximum degradation and the final concentration of TOC were 98.64 % and 256.8 mg L?1, respectively, by the Electro-Fenton process under the optimal conditions. The Electro-Fenton process was successful in determining the maximum degradation of DMAC (96.31 %) and the final TOC concentration (10.03 mg L?1) at 250 mg L?1 of DMAC under optimal conditions. Finally, it can be concluded that the Electro-Fenton process was the best process for the efficient removal of DMSO and DMAC. The second step of the kinetic model follows a pseudo-first-order reaction for 250 and 500 mg L?1 of pollutants and obeyed a pseudo-second-order kinetic model for concentrations of 1000, 2000 mg L?1. 相似文献
60.
Treatment of real textile industry effluent using photocatalysis, sonocatalysis, sonophotocatalysis and H2O2 assisted sonophotocatalysis have been studied based on the use of Ce-TiO2 nanocatalyst synthesized using sonochemical co-precipitation method. Characterization studies of the obtained catalyst revealed crystallite size as 1.44 nm with particles having spherical morphology. A shift of the absorption edge to the visible light range was also observed in UV–Vis diffuse reflectance spectra (UV-DRS) analysis. The effects of different operational parameters viz catalyst dose (0.5 g/L-2 g/L), temperature (30 °C-55 °C) and pH (3–12) on the COD reduction were studied. The reduction in the COD was higher at lower pH and the optimum temperature established was 45 °C. It was also elucidated that the required catalyst dose was lesser in combined sonophotocatalysis when compared with individual photocatalysis and sonocatalysis. Combination of processes and addition of oxidants increased the COD reduction with the sonophotocatalytic oxidation combined with H2O2 treatment showing the best results for COD reduction (84.75%). The highest reduction in COD for photocatalysis was only 45.09% and for sonocatalysis, it was marginally higher at 58.62%. The highest reduction in COD achieved by sonophotocatalysis was 64.41%. Toxicity tests coupled with Liquid Chromatography Mass Spectrometry (LC-MS) analysis revealed that there were no additional toxic intermediates added to the system during the treatment. Kinetic study allowed establishing that generalized kinetic model fits the experimental results well. Overall, the combined advanced oxidation processes showed better results than the individual processes with higher COD reduction and lower requirement of the catalyst. 相似文献