4×4掺铟硅CID阵列的研制

本文介绍了非本征硅红外探测器工作机理,叙述了4×4面阵探测器的设计和研制中的要点,给出了4×4掺铟硅CID阵列的部分性能参数。在79K温度下,探测元的D值为(1～4)×108cm~(1/2)W~(-1)。     

单片式红外焦平面阵列的进展

本文着重介绍金属硅化物肖特基势垒红外探测器阵列（MSSBIRDA），碲汞电荷注入器件（HgCdTeCID)，电荷成像矩阵（CIM），锑化铟电荷注入器件（InSbCID)以及砷化镓／砷铝镓（GaAs/GaAlAs)多量子阱单片式红外焦平面阵列的现状。     

Identification and characterisation of water and alkali soluble oligosaccharides from hazelnut skin (Corylus avellana L.)

Hazelnut skins are a good example of agricultural by-product with the potential to become a valuable source of functional ingredients. In this work, the fibre from hazelnut skins was extracted by using water and alkali solution and characterised by a suite of analytical tools (MALDI-FTICR, nano LC-Chip-Q-ToF and gas chromatography). Over thirty complex free oligosaccharides, composed mainly of galacturonic acid and N-acetylgalactosamine, were characterised for the first time in the present study. Their concentration ranged between 16 and 34 mg per g of extract. The oligosaccharides isolated from this agricultural by-product are mainly hexose oligosaccharides (potentially galacto-oligosaccharides,) and xyloglucans. The identified composition could justify the bioactive activity of the extracts, namely prebiotic activity, previously demonstrated.     

FSK来电识别软解码算法研究

介绍电话POS STM32F103VC平台上FSK制式CID的软件解码实现。分析2DFT、移位相乘两种FSK软解调方法的原理,在MATLAB上对这两种解调方法的性能进行分析。MATLAB运算结果表明,2DFT方法和移位相乘方法各有优缺点。将解调算法按标准C代码移植至VC,再将其移植至电话POS STM32F103VC主控芯片,并在POS系统中对解码性能进行测试,优化解码算法。     

大气压化学电离质谱分析苯二苯硫醚异构体

芳香性苯基硫醚是用于合成具有生物活性的含硫杂环物质的重要前体化合物。本工作采用大气压化学电离（APCI）/离子阱二级质谱技术结合量子化学密度泛函理论计算,对邻、间、对苯二苯硫醚三类位置异构体的质谱裂解反应机理进行研究。苯二苯硫醚三类位置异构体经过碰撞诱导解离（CID）,发生HS自由基和苯硫自由基的中性丢失;并且仅在邻苯二苯硫醚类化合物中可观察到连续中性丢失2个HS自由基产生的碎片离子,而在间、对苯二苯硫醚类化合物中则观察到S₂的特征丢失;取代苯硫酚的中性丢失只能在邻、间苯二苯硫醚类化合物中检测到,此外,间苯二苯硫醚类化合物还有取代苯的特征性丢失。综上,三类苯二苯硫醚位置异构体在APCI-MS/MS条件下的质谱裂解行为有显著差异,根据HS自由基、S₂、取代苯硫酚和取代苯的特征丢失,可实现这些异构体的区分鉴定。     

Amino acids as modulators of lipoxygenase oxidation mechanism. The identification and structural characterization of spin adducts intermediates by electron spin resonance and tandem mass spectrometry

Antioxidant activity is displayed by amino acids, such as tryptophan (Trp), tyrosine (Tyr) and histidine (His) in the spontaneous oxidation of linoleic acid (LA). In addition, when Trp was incubated with soybean lipoxygenase (LOX 1) and LA, a modulating effect was observed. The elucidation of the reaction pathways was achieved through the identification, by electron spin resonance (ESR) spectroscopy, of α-[4-pyridyl 1-oxide]-N-t-butyl nitrone (POBN) adducts with the selected amino acids. The latter, when electrosprayed (ESI) were detected in the gas-phase as radical cations. They were structurally characterized by tandem mass spectrometry (MS/MS) through collision-induced dissociation (CID) of the adducts. The kinetic data obtained from selected model systems suggested a reversible radical scavenging activity of tryptophan on the intermediate dienyl radical formed in the lipids lipoxygenase cascade.     

海南野扇花碱类化合物的FAB与ESI-MS/MS的比较

本文报告考察了 FAB与 ESI碰撞诱导解离 ( CID)对 MS/MS裂解的影响。采用不同的实验能量和加速电压 ,以及不同的反应气氙气、甲烷对海南野扇花碱类化合物的 [M+ H]+ 离子进行碰撞 ,结果得到不同的 CID谱。结论 :CID谱主要取决于碰撞能量 ,但与母离子的初始内能和反应气体仍有关系。     

伊拉克战争后外军战斗识别系统的发展趋势

信息化战争对战斗识别在网络化、信息处理、态势感知、数据融合等方面的能力提出了更高要求,使其涌现出与以往不同的新特点。本文研究了伊拉克战争后,世界各军事大国的军事针对未来信息化战争的特点提出的战略发展和技术开发计划,分析了外军重点开发的几种战斗识别系统,并在此基础上,提出适应未来信息化战争的战斗识别发展建议。     

基于CMX865和uCGUI的商务电话来电显示的实现

为了满足企业对客户电话资料的管理,本文分析了主叫识别信息传送及显示(CID)和解码芯片CMX865的基本原理.通过软件和CMX865的结合,提出了在嵌入式系统中构建来电显示功能模块的具体方法和实现,并为上层提供了uCGUI接口的嵌入式系统驱动.经过PC机上ARM ADS软件环境下测试,响应时间小于3.6s,符合来电显示标准.