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.     

-15℃下Na+， K+， Mg2+//Cl-， NO3-， SO42——H2O体系相平衡研究

新疆卤水硝酸盐矿主要含有Na⁺、K⁺、Mg²⁺、Cl^-、NO₃^-、SO₄^2-六种离子,属于高元复杂体系,其合理利用和开发需要不同温度下的相平衡研究作为理论支撑。采用等温溶解平衡法,对Na⁺, K⁺, Mg²⁺//Cl^-, NO₃^-, SO₄^2--H₂O体系在-15℃、NaCl·2H₂O饱和条件下的相平衡进行了研究,并构建了相图。相图中有六个零变量点和八个两盐结晶区,只存在一种复盐KCl·MgCl₂·6H₂O。八个两盐结晶区,分别对应于NaCl·2H₂O+Na₂SO₄·10H₂O、NaCl·2H₂O+NaNO₃、NaCl·2H₂O+KCl、NaCl·2H₂O+KNO₃、NaCl·2H₂O+MgSO₄·7H₂O、NaCl·2H₂O+MgCl₂·8H₂O、NaCl·2H₂O+Mg(NO₃)₂·6H₂O和NaCl·2H₂O+KCl·MgCl₂·6H₂O,其中NaCl·2H₂O+Na₂SO₄·10H₂O共晶区最大,在低温时,硫酸钠的溶解度最小,降温过程中较易结晶析出。与该体系在25℃下的相图相比,复盐种类减少5种,零变量点减少19个,相关系得以极大简化。     

内热型超声雾化溶液再生系统最优内热量的研究

基于质量守恒、能量守恒定律,建立了内热型超声雾化溶液再生系统（IH-UARS）的再生性能预测模型并进行了充分的实验验证,通过研究不同内热量下IH-UARS的再生性能及其变化规律,寻求系统所需的最佳内热量并明确其可能的影响因素。结果表明：IH-UARS系统存在最优的内热量范围,使其再生系统性能最佳;所需最优内热量随着再生溶液流量增大呈显著的对数增长,但受空气流量的影响较弱;在该研究中的标准工况下,IH-UARS所需最优内热量约为275~350 W。此外研究发现：内热量的增长有益于促进初始浓度较高的溶液进一步浓缩再生,如当IH-UARS中内热量增至800 W时,其初始浓度为36%的溶液比24%的溶液浓度增量指标改善幅度高37%。研究所得结果可对提高溶液再生性能及经济性提供积极参考。     

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。     

镀液温度实时控制系统的设计与实现

针对镀液温度变化的非线性和滞后性,设计了采用专家规则的镀液温度实时控制系统。该系统在实时监测的基础上,构建了综合评判镀液温度偏差和镀液温度偏差变化率的专家规则,实现了镀液温度的自适应快速调节。仿真分析结果表明,该系统克服了非线性和滞后性的不良影响,能够实现镀液温度的实时控制。     

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.     

Phase equilibria studies in the CaO–SiO2–Al2O3–MgO system with CaO/SiO2 ratio of 0.9

Phase equilibria and liquidus temperatures in the CaO–SiO₂–Al₂O₃–MgO system at a CaO/SiO₂ weight ratio of 0.9 in the liquid phase have been experimentally determined employing high-temperature equilibration and quenching technique followed by electron probe X-ray microanalysis. Isotherms at 1573, 1623, 1673, and 1773 K were determined and the primary phase fields of wollastonite, melilite, olivine, periclase, spinel, and corundum have been located. Compositions of the olivine and melilite solid solutions were analyzed and discussed. Comparisons between the newly constructed diagram, existing data, and FactSage predicted phase diagrams were performed and differences were discussed. The present study will be useful for guidance of industrial practices and further development of thermodynamic modeling.     

陶瓷超滤膜用于盐湖卤水提锂合格液的中试研究

为解决纳滤膜用于盐湖卤水镁锂分离中长时间运行后出现通量下降、膜污染和分离效率下降的问题,开展了将陶瓷超滤膜作为纳滤预处理措施用于盐湖卤水提锂合格液的中试研究。中试设在吸附提锂车间,进水为提锂工序中的合格液。结果表明,在冬天低温环境合格液浊度<50 NTU的条件下,以及在合格液浊度上升至50~170 NTU的极端进水水质条件下,陶瓷超滤膜均可在300 L/（m ²·h）的测试通量下稳定运行,过滤时间为30~50 min/周期。产水浊度稳定<0.1 NTU,优于后续纳滤系统进水要求。