Comparison of reflection contrast microscopy and electron microscopy on the histopathological diagnosis of various kidney diseases

Our aim in this study was to compare reflection contrast microscopy (RCM) with transmission electron microscopy (TEM) to understand whether RCM could be used in the histopathological diagnosis of various kidney diseases as a less expensive and an easier alternative to TEM. The diagnoses of kidney pathologic lesions included Alport syndrome, thin membrane disease, Ig A nephropathy. RCM is a form of light microscope that works in the reflected mode, suitable to observe ultrathin (50-100 nm) plastic sections that is also used in TEM. Our findings showed that RCM showed similar results compared with TEM on these lesions described earlier.     

基于PC和PLC的分布式监控系统

以工控PC机作主控上位机,利用VB6 .0的MSComm串行通信控件实现了在Win2 0 0 0环境下与Master K12 0SPLC的串行通信,完成对多台PLC(下位机)的控制,利用工控PC机强大的数据处理性能实现对监控结果的集中管理和优化。     

超临界二氧化碳制备微胶囊的研究进展

介绍了超临界流体快速膨胀法、超临界流体抗溶剂技术、浸渍法、化学反应法、雾化气体饱和溶液法等超临界CO2技术制备微胶囊的原理和特点;着重介绍了国内外学者对这些方法的研究现状及应用实例;并对这些方法进行了分析和比较,同时指出了这些方法的使用特点。     

Discrete Orthogonal Multi-transform on Chip (DOMoC)

Journal of Signal Processing Systems - The modern real time applications such as orthogonal frequency division multiplexing, data/image/video compression, speech processing, and etc., demand high...     

Synthesis and characterization of pyrrole and thiophene functional polystyrenes via “click chemistry”

Novel side-chain pyrrole or thiophene functional polystyrenes (PS-Py and PS-Th) were synthesized by using ‘‘click chemistry’’ strategy. First, approximately 40% of chloro groups of poly(styrene-co-chloromethylstyrene) P(S-co-CMS), prepared by nitroxide mediated radical polymerization (NMRP), were converted to azido groups by using NaN₃ in N,N-dimethylformamide. Propargyl pyrrole was prepared by etherification of 4-(1H-pyrrol-1-yl)phenol prepared by Clauson-Kaas reaction using propargylbromide. Propargyl thiophene was synthesized by heterogeneous esterification reaction between 3-thiophenecarboxylic acid and propargylbromide. Finally, azido-functionalized polystyrene was coupled to these propargyl functional heterocyclics with high efficiency by click chemistry. The intermediates at various stages and final polymers were characterized by spectral analysis and cyclic voltammetry.     

喷射环流反应器内宏观混和特性研究

通过实验分析研究了喷射环流反应器内宏观混和特性各影响因素的作用.分别采用水,水-细沙,丙三醇溶液等为实验物料,测定宏观混和时间和内循环液速.通过调整外循环流量大小和喷嘴位置,记录各混和特性的变化.结果表明:不同物料下,外循环流量对混和时间和内循环液速的影响都很大,混和时间均随循环流量的增大而缩短,内循环液速随着循环流量...     

Harvesting vibration energy using piezoelectric material: Modeling,simulation and experimental verifications

Piezoelectric materials produce electrical charges when subjected to dynamic strain. These materials can be used to capture and store vibrational energy which later can be used to power up small devices. This paper presents an analytical estimation of voltage production of piezoelectric cantilever beam when subjected to base excitation, with and without attached proof masses. The beam is modeled using Euler–Bernoulli, also known as thin beam theory. As such, the model obtained here is applicable for micro- and nano-beams. The frequency response function (FRF) that relates the output voltage and transverse acceleration is identified for multi-mode vibration. These analytical predictions are then compared with experimental results and good agreement is obtained.     

双甘膦氧化过程工艺条件研究

双甘膦的氧化是草甘膦生产过程中的关键步骤。双甘膦催化氧化反应的主要影响因素有:催化剂用量、反应压力、反应温度。选择合适的反应条件,对于双甘膦的转化率以及草甘膦的选择性都有着重要影响。以及本研究以活性炭为催化剂,探索各反应条件对低浓度双甘膦氧化反应的影响。得出了最优反应工艺条件。温度为60℃,反应压力为0.4 MPa,活性炭催化剂与双甘膦的质量比为15%。