黄皮果珍珠钙保健饮料的研制

研究了以野生黄皮果为原料,添加可溶性珍珠钙的果汁保健饮料的加工工艺,通过正交试验等方法确定其加工工艺及最佳配方,结果表明：原果汁采用微波加热灭酶,效果良好：保健饮料的最佳配方为果汁15%,可溶性珍珠钙0.8%、白糖9%;适宜的杀菌工艺条件为83-85℃加热20min。     

Reactive,intumescent, halogen‐free flame retardant for polypropylene

A reactive, intumescent, halogen‐free flame retardant, 2‐({9‐[(4,6‐diamino‐1,3,5‐triazin‐2‐yl)amino]‐3,9‐dioxido‐2,4,8,10‐tetraoxa‐3,9‐diphosphaspiro[5.5]undecan‐3‐yl}oxy)ethyl methacrylate (EADP), was synthesized through a simple three‐step reaction from phosphorus oxychloride, pentaerythritol, hydroxyethyl methacrylate, and melamine. EADP exhibited excellent thermal stability and char‐forming ability, as revealed by thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). The TGA results show that the temperature at 5% weight loss was 297.8°C and the char yield at 700°C was 51.75%. SEM observation revealed that the char showed a continuous and compact surface and a cellular inner structure with different sizes. Composite of polypropylene (PP) with a 25 wt % addition of EADP (PP/EADP25) passed the UL‐94 V‐0 rating and showed a limiting oxygen index value of 31.5. Compared with those of neat PP, the flexural strength and modulus values of PP/EADP25 were somewhat improved, the tensile strength was basically unchanged, and the notched Izod impact strength was slightly decreased. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131, 40054.     

声强法及其在装甲车上的应用

该文介绍了声强法的有关理论,并对装甲车车内声强分布及向外辐射的声功率进行了测试、分析和计算。测试结果表明:声强法比声压法精度高,使用方便,解决了声压法难以解决的问题。     

智能化电器对电器开发的新要求

该文论述了智能化电器及系统对电器提出的新要求,根据不同产品,分别对电器元件、开关柜、大型电器、电器成套设备进行了分析。并根据这些新要求提出在产品开发中应采取的措施和应做的工作。列举最近开发的有关智能化产品作了说明。结合分析论述做出结论。     

弹道式导弹结构偏差特性的分析计算

本文以一个两级液体推进剂导弹为例,介绍了导弹主要结构偏差特性的分析计算方法。这一方法可使导弹系统设计更趋合理,并可推广到其它类型导弹、运载火箭的系统设计中。     

利用正交法改进沥青涂料施工配方

用正交法改进沥青涂料的配方和施工条件，包括溶剂成分配比、溶剂用量、树脂含量和烘烤时间等，达到提高涂层质量和节约溶剂的效果。     

纳米ZAO透明隔热涂层的研制

以ZnSO4.7H2O和Al(2SO4)3为原料,采用化学共沉淀法制备纳米ZAO纳米粉体,以苯丙乳液为成膜物质制备了ZAO透明隔热涂料,并对涂层进行了隔热性能测试,表明所得的透明隔热涂料具有良好的隔热效果和透明效果,拥有良好的应用前景。     

Hierarchical N-Doped Porous Carbons for Zn–Air Batteries and Supercapacitors

Nitrogen-doped carbon materials with a large specific surface area,high conductivity,and adjustable microstructures have many prospects for energy-related applications.This is especially true for N-doped nanocarbons used in the electrocatalytic oxygen reduction reaction(ORR)and supercapacitors.Here,we report a low-cost,environmentally friendly,large-scale mechanochemical method of preparing N-doped porous carbons(NPCs)with hierarchical micro-mesopores and a large surface area via ball-milling polymerization followed by pyrolysis.The optimized NPC prepared at 1000°C(NPC-1000)offers excellent ORR activity with an onset potential(Eonset)and half-wave potential(E1/2)of 0.9 and 0.82 V,respectively(vs.a reversible hydrogen electrode),which are only approximately 30 mV lower than that of Pt/C.The rechargeable Zn–air battery assembled using NPC-1000 and the NiFe-layered double hydroxide as bifunctional ORR and oxygen evolution reaction electrodes offered superior cycling stability and comparable discharge performance to RuO2 and Pt/C.Moreover,the supercapacitor electrode equipped with NPC prepared at 800℃ exhibited a high specific capacity(431 F g^−1 at 10 mV s^−1),outstanding rate,performance,and excellent cycling stability in an aqueous 6-M KOH solution.This work demonstrates the potential of the mechanochemical preparation method of porous carbons,which are important for energy conversion and storage.     

Removal of chlorophenols from groundwater by chitosan sorption

The equilibrium and kinetics of chlorophenol (CP) sorption by chitosan, poly D-glucosamine, were studied under simulated groundwater conditions. Lower temperature, from 25 degrees C to 15 degrees C and then 5 degrees C, markedly decreased the adsorption rates by a factor of 30-53% and 7-22%. Comparison between two types of chitosan, flakes and highly swollen beads, demonstrated that the maximum pentachlorophenol (PCP) uptake capacities in Langmuir and Freundlich models depend on the specific surface area of the particle. Low temperature (5 degrees C) significantly increased the PCP uptake capacity in comparison to higher temperatures (15 degrees C and 25 degrees C). PCP uptake capacity was halved at pH levels higher than 6.5, and NaCl concentrations greater than 1% blocked PCP sorption almost completely. Of five kinds of chlorophenols, i.e. 2,4,6-trichlorophenol (2,4,6-TCP), 3,4-dichlorophenol (3,4-DCP), 2,3-dichlorophenol (2,3-DCP), 2,6-dichlorophenol (2,6-DCP), 3-monochlorophenol (3-MCP), TCP had the maximum sorption efficiency on flake-type chitosan, followed by DCPs, and finally MCP (the three kinds of DCP, with the same elemental compositions, achieved similar sorption performances).