桃仁和苦杏仁营养成分比较

桃仁和苦杏仁营养成分比较张玲,李宝国山东省中医药研究所２５００１４１脂肪酸成分比较采用美国ＧＣ－Ｈｐ·５８９０－５９７０·ＢＭＳＤ气相色谱－质谱联用仪测试,结果见表１。２氨基酸含量比较采用日立８３５－５０型氨基酸自动分析仪测试,结果见表２。色氨酸未测...     

新陈玉米的拉曼光谱快速判别研究

本文采用拉曼光谱结合判别分析方法对新陈玉米进行了判别研究。在河南省内收集郑单958新陈玉米样品共75份,粉碎过筛后置于样品袋中,使用光纤直接采集他们的拉曼光谱。对原始光谱进行多项式平滑滤波、基线校正及一介导数处理后,首先运用主成分马氏距离判别分析方法建立了判别模型,主成分数为9,光谱建模范围为914~1369 cm-1时模型结果最优,此时建模集总正确判别率为92.7%,验证集总正确判别率为90%。然后运用偏最小二乘判别分析方法建立了相应的识别模型,当建模因子数为7,采用全谱建模时结果最优,此时建模集样品正确判别率为100%,验证集样品正确判别率为95%。偏最小二乘判别分析方法正确识别率较高,结果表明拉曼光谱可以应用于玉米新陈度的快速识别,在粮食储藏品质评价中具有极大的应用潜力。     

时间式电控VE泵开发及其控制算法实现

介绍了一种新型的时间式电控VE泵系统。通过对整个喷射系统的电控和机液部分的开发改造,采用了独具特色的控制算法,在原机械泵作最少改动的前提下,实现了喷油量和定时的直接数字控制,该系统已在油泵台试验中得到了验证。     

光伏发电在高速公路中的技术探析

高速公路外场监视系统采取传统供电形式,受供电距离、地形、成本等影响较大,进而给项目后期运行维护带来诸多不便因素.探讨了高速公路的外场监视系统实际运用中的需求,提出了采取光伏太阳能供电形式的可行性方案.介绍了光伏太阳能发电系统的构成及性能,并对项目设计中所要配备实际负荷的光伏太阳能电池方阵和蓄电池的容量大小进行分析阐述....     

POE-g-GMA对PLA/PP共混体系结构及性能的影响

采用甲基丙烯酸缩水甘油酯(GMA)接枝乙烯-辛烯共聚物(POE)得到的POE-g-GMA作为相容剂引入到聚乳酸(PLA)/聚丙烯(PP)共混体系中,利用FTIR,DSC,SEM等方法研究了POE-g-GMA对PLA/PP共混体系性能的影响,并探讨了POE-g-GMA的增容机理.实验结果表明,POE-g-GMA改善了PL...     

P（AA/AMPS）与P（AM/AA/AMPS）水溶液高温降解机理研究

为研究丙烯酰胺类聚合物在水溶液中的高温降解机理,以丙烯酰胺（AM）、丙烯酸（AA）、2-丙烯酰胺-2-甲基丙磺酸（AMPS）为单体制备了P（AA/AMPS）、P（AM/AA/AMPS）两种模板聚合物,将两种聚合物分别在200、220、240 ℃下进行降解实验,使用FTIR、¹H-NMR、XPS、GPC、TG-IR 等分析聚合物及其降解产物。研究结果表明,丙烯酰胺类聚合物在水溶液中的高温降解行为主要发生在不抗温的侧基,表现为主链次甲基含量的下降。次甲基断键后,主链断裂导致聚合物的相对分子质量降低,降解过程中生成二氧化碳、氨气等小分子。两种聚合物在热重测试中抗温能力与水溶液中的抗温能力矛盾,因此评价丙烯酰胺类钻井液处理剂抗温能力时不能以热重分析结果作为标准。     

Separating Crystallization Process of P3HT and O‐IDTBR to Construct Highly Crystalline Interpenetrating Network with Optimized Vertical Phase Separation

The morphology with the interpenetrating network and optimized vertical phase separation plays a key role in determining the charge transport and collection in polymer:nonfullerene small molecular acceptors (SMAs) solar cells. However, the crystallization of polymer and SMAs usually occurs simultaneously during film‐forming, thus interfering with the crystallization process of each other, leading to amorphous film with undesirable lateral and vertical phase separation. The poly(3‐hexylthiophene) (P3HT):O‐IDTBR blend is selected as a model system, and controlling film‐forming kinetics to solve these problems is proposed. Herein, a cosolvent 1,2,4‐triclorobenzene (TCB) with selective solubility and a high boiling point is added to the solution, leading to prior crystallization of P3HT and extended film‐forming duration. As a result, the crystallinity of both components is enhanced significantly. Meanwhile, the prior crystallization of P3HT induces solid–liquid phase separation, hence rationalizing the formation of the nano‐interpenetrating network. Moreover, the surface energy drives O‐IDTBR to enrich near the cathode and P3HT to migrate to the anode. Consequently, a highly crystalline nano‐interpenetrating network with proper vertical phase separation is obtained. The optimal morphology improves charge transport and suppresses bimolecular recombination, boosting the power conversion efficiency from 4.45% to 7.18%, which is the highest performance in P3HT‐based binary nonfullerene solar cells.     

浅析无胶单面挠性覆铜板的卷曲性

本文对影响无胶单面挠性覆铜板卷曲性的因素进行了研究,结果发现,铜箔厚度、聚酰亚胺膜的CTE、溶剂种类以及加工工艺条件对卷曲性有很大影响。通过调整四个因素,可以制备板材本身和蚀刻后聚酰亚胺膜都不卷曲的产品。     

Three-Dimensional Printed Mechanically Compliant Supercapacitor with Exceptional Areal Capacitance from a Self-Healable Ink

Known for its capability to architect tailored structures for the scaling of active materials in energy storage devices that cater for future electronics having stringent requirements on areal performance, 3D printing is receiving serious attention. However, lingering challenges originating from the notorious interfacial issue and weak component interaction restrain current devices from making a breakthrough in deliverable capacity and structural flexibility. In this work, the printed electrode delivers a record-breaking electrical double layer (EDL) areal capacitance of 27.1 F cm⁻² under an extremely large loading density of 134 mg cm⁻². This translates to a deliverable record-high EDL energy density of 1.26 mWh cm⁻² for device performance, which even rivals the highest value reported from highly loaded pseudocapacitors. The bespoke devices are enabled by a strategically formulated 3D printable ink that initiates efficient autonomous room-temperature self-healing and strong interplay between constituting ink components. These contribute to interlayer coalescing for eliminated interlayer resistance for a solid electrochemical performance and printed electrodes of great mechanical compliance. By tapping into the huge potential of 3D printing, this work lays a solid foundation on which flexible devices with customized geometry, functionality, and outstanding performance for a broad range of applications can be readily realized.     

数码迷彩立体动态成像算法研究

现有数码迷彩图案的平面性和固定不变性使之难以对抗未来高技术的侦察监测,针对这个问题,提出了一种基于柱透镜光栅的数码迷彩立体动态成像算法。该算法充分考虑人双目立体成像的生理特征和柱透镜光栅分光分像的光学特性,阐述数码迷彩立体动态化的可行性。在此基础上,推导出迷彩立体动态成像的视差设计原理并根据背景深度信息将数码迷彩图像分为多幅迷彩深度序列图。利用梳状函数对迷彩深度序列图进行采样合成,最终生成一幅光栅图像,用来裱贴于光栅板后即可实现立体动态数码迷彩。对该算法有效性进行了仿真实验并加以分析。