空对空多目标攻击载机攻击航线求解逻辑

介绍了空对空多目标攻击载机攻击航线的基本要求、航线选择和求解方法,以及载机航线、瞄准偏差、操纵指令的计算逻辑图.同时还介绍了多目标攻击"可能攻击扇形区"交集的概念和在载机航线求解中的应用等问题.     

Robust,low haze and graded porous anti-reflective glass by Tailoring the Nanostructures

Low haze and anti-reflective glass has high potential applications in automobile and optoelectronic fields. Etching is a novel and effective method to fabricate gradient refractive index anti-reflective layer on glass surface. However, the gradient layer on glass surface prepared by the etching method usually characterizes rough porous structure, and the structural defect results in high haze and low abrasion resistance to restrict its applications. In this paper, a hydrothermal etching method has been explored to prepare anti-reflective glass. It has demonstrated to be a new and facile method successfully to tailor the porous nanostructure of gradient refractive index layer and largely decrease the haze of the glass, by adding complex compound in the etching solution. Compared with the etching solution containing NaOH, adding the complex compound of C₆H₅Na₃O₇ in the etching solution has the advantage to overcome the defects. The grain diameter of the graded porous anti-reflective film decreases from ~63 nm to ~18 nm, the etched film thickness increases from 0.44 μm to 1.55 μm, the haze decreases drastically from 23.76% to 1.00%, the reflectivity decreases from 5.88% to 1.08% and the abrasion resistance greatly increases. However, when changing the complex compound from C₆H₅Na₃O₇ to Na₂HPO₄, the haze is 23.44% and has no effect on decreasing haze. Structural characterizations show that the grain size in the porous gradient layer can be easily tailored by changing the ion radius of complex anion in the etching solution, and the optical properties can be controlled. The paper provides new insights into the nanostructures and the preparation approach of anti-reflective glass.     

运行压力对超声雾化溶液除湿系统性能的影响

基于溶液除湿热质传递过程中所遵循的质量平衡、能量平衡模型,以超声雾化溶液除湿系统（UADS）为例,探讨了在不同空气处理温度、湿度下,系统运行压力对除湿性能的影响。结果表明：随着运行压力的升高,UADS系统的除湿性能显著改善。特别是在所处理空气入口温度较高时,提升系统运行压力对除湿效率的提高作用更加显著。同时,当所处理空气的含湿量较大时,提高运行压力对系统除湿速率的增幅明显,而对除湿效率的改善作用减弱。此外,当除湿系统在较高压力下运行时,其除湿效率受所处理空气入口温湿度变化而产生的波动减小,系统性能稳定性显著改善。所得结果可对溶液除湿系统的高效、稳定运行提供积极参考。     

缓冲溶液法制备高效的铁基类芬顿催化剂

负载型金属催化剂在水处理中起着重要的作用,浸渍法是制备负载型催化剂的重要方法。为了克服传统浸渍方法的缺点,本文通过使用甘氨酸/盐酸作为缓冲溶液,严格控制pH,获得高分散的活性组分并以此方法制备了铁基类芬顿催化剂。对苯酚催化降解的实验表明,使用缓冲溶液法制备的催化剂比未使用的样品可以更高效地去除苯酚,1h内对苯酚的降解可达89.3%。此外,通过调节浸渍温度、浸渍时间和缓冲溶液的pH等参数来精确控制活性组分的量和催化活性。更重要的是,此催化剂制备方法可以用于其他负载型金属催化剂的制备,比如过硫酸盐催化剂,并取得了良好的催化效果。     

Influence of Zr dopant on polarization in rutile (In0.5Nb0.5)0.005(Ti1-xZrx)0.995O2 ceramics

(In_0.5Nb_0.5)_0.005(Ti_1-xZr_x)_0.995O₂ (INZT, x = 0-0.10) ceramics were synthesized using a conventional sintering method, and the effects of Zr content on the microstructures, dielectric properties and electron-pinned defect-dipoles (EPDD) polarization of the resultant products were investigated. The solubility limit of INZT was x = 0.075, and a secondary ZrTiO₄ phase appeared at x = 0.10. Ceramics with x = 0-0.10 exhibited excellent dielectric properties, ie, colossal permittivity (CP, εʹ > 10³) and low dielectric loss (tanδ < 0.1), over a wide range of frequencies (10⁰-10⁶ Hz at 300 K) and temperatures (50-350 K at 1 kHz). The dielectric spectra and XPS results confirmed that the CP property of the ceramics could be ascribed to their EPDD polarization. The activation energy (E_a) for EPDD polarization was continuously enhanced by increasing x values. EPDD relaxation parameters at different x values were revealed using Cole-Cole equation fitting. Moreover, α, which characterize the relaxation time τ distribution, increased with x values, thus indicating that Zr was involved in and affected electron localized states. The high E_a, temperature T_p of the peak εʹʹ at 1 kHz, and dielectric relaxation time τ_p at 30 K were related to increases in hopping distance of electrons among defect clusters with Zr addition.     

金属铈在NaCl-KCl和NaCl-KCl-CeCl3熔盐体系中的溶解行为

通过离子浓度测定、气体生成法、熔盐耗酸量测定、X射线衍射和差重分析法,综合评判了金属铈在NaCl-KCl和NaCl-KCl-CeCl₃熔盐体系中的溶解行为。结果表明,金属铈在熔盐中的损失存在物理溶解和化学反应,可生成氧化物、氮氧化物、氯氧化物等,同时还可与坩埚成分发生反应。金属铈及其化合物在熔盐中的溶解度很低,但会生成新相,新相中含有大量的铈。采用嵌套式坩埚并增加内部小坩埚高度,可有效降低金属铈的溶解损失量。     

磷化膜电化学测试技术的研究进展

综述了用线性极化法和电化学阻抗法测磷化膜孔隙率以定量评价磷化膜耐蚀性能的电化学方法,着重介绍了简便快速检测磷化膜性能的改进型电化学阻抗法,分析了测试溶液对磷化膜孔隙率的影响,展望了电化学测试技术在磷化工业中的应用前景.     

苯并三氮唑缓蚀剂在铜表面覆盖行为的研究

应用交流阻抗方法研究了高浓度氯离子条件下的铜表 面苯并三氮唑(BTA)覆盖层随溶液中BTA浓度的变化规律.BTA浓度在0 mol/L～4.20×10-3 mol/L之间时,BTA覆盖层不能完全覆盖铜表面,覆盖度随CaCl2溶液中BTA含量的增加而增加;BTA浓度大于4.20×10-3 mol/L即可在铜表面形成较为完整的覆盖层,其覆盖度在0.8～0.9之间.BTA浓度小于9.42×10-3mol/L时,BTA覆盖层的厚度随浓度的提高也会有所增加;大于9.42×10-3mol/L后,BTA在铜表面的覆盖度和覆盖层厚度都达到稳定值.      

三阶奇异边值问题的多解性

利用锥上的不动点定理和Green函数的性质,本文在较弱条件下研究了三阶奇异非线性边值问题的多个正解的存在性。     

含硫杂杯芳烃的高聚物的合成、表征及对Pb2+的传输作用

用自行合成的带有可聚合活性基团的硫杂杯芳烃衍生物,分别与苯乙烯和甲基丙烯酸甲酯聚合,得到不同组成配比的两类七种新共聚物。用红外、元素分析和GPC等方法对共聚产物进行了表征,并用液膜传输的方法对共聚物传输铅离子的能力进行了初步研究。结果表明,硫杂杯芳烃衍生物与苯乙烯或甲基丙烯酸甲酯的共聚物均具有较强的铅离子传输能力,是一种新型的功能高分子材料,有望在许多方面得到应用。