流式荧光技术联合检测多种肿瘤标志物的临床应用

目的评价应用流式荧光技术联合检测多种肿瘤标志物在肿瘤的早期诊断的价值。方法使用Luminex200多功能流式点阵检测系统测定分析421例恶性肿瘤患者、372例良性疾病患者和154名门诊健康体检者血清7种肿瘤标志物:甲胎蛋白(AFP)、糖类抗原125(CA125)、CYFRA211、糖类抗原42(CA242)、癌胚抗原(CEA)、β-人绒毛膜促性腺激素(β-HCG)、神经元特异性烯醇化酶(NSE)。结果恶性肿瘤组、良性疾病组、健康体检组阳性率分别为73.63%、28.77%、7.23%。恶性肿瘤组阳性率显著高于良性疾病组和健康体检组(P<0.01);多种肿瘤标志物联合检测对肝癌组、肺癌组、结直肠癌阳性检出率均显著高于其单一肿瘤标志物检测(P<0.01)。结论使用Luminex200多功能流式点阵系统联合检测多种肿瘤标志物可以显著提高恶性肿瘤诊断的敏感性,对肿瘤的早期诊断具有重要的应用价值。

A molding method to fabricate the waveguide multilayer card

Waveguide multilayer optical card (WMOC) is a new kind of three-dimensional storage device. A method of fabricating the WMOC using the molding technique is introduced in this paper. The fabrication of WMOC mainly includes data writing with hot embossing method and multilayer bonding with PDMS material. The structure of the WMOC is consisted with Polycarbonate (PC) as the core layer material and Polydimethylsiloxane (PDMS) as cladding layer. The experimental results demonstrate that the molding fabrication method is feasible and effective.

垃圾焚烧发电厂渗滤液“零排放”工程实例

运用“调节池+UASB厌氧反应器+MBR(两级A/O+超滤膜)+NF+RO+DTRO减量化”的主体工艺实现了垃圾渗滤液污水的零排放,污水实现全回用。同时分析了渗滤液的产率及水质变化、处理效果及处理成本,总结了运行经验,并在设计及运行等方面提出了建议,为鲁南地区生活垃圾焚烧发电行业的设计及运行提供了参考。

压电陶瓷液体调相器的性能检测

光学综合孔径成像技术的关键是解决共相位问题,子孔径之间的相位失调会严重影响成像质量,工程上一般要求调相精度达到光波段λ/10。本文采用压电陶瓷制备一种液体调相器,利用干涉法和数字图像处理技术实现对调相器相位的高精度检测。通过向压电陶瓷腔注入液体来制备调相器,利用干涉仪获得压电陶瓷液体调相器在不同电压下的干涉条纹并使用CCD记录,最后对这些干涉条纹图像进行数字图像处理,得到单个像素的条纹骨架,采用条纹标记法跟踪不同电压下骨架条纹的移动情况,并计算骨架条纹的像素移动量。实验结果表明,在0~30 V的电压下,压电陶瓷液体调相器的调相范围为0~3.325π,调节精度可以达到λ/40,并且在电压区间内调相的线性度良好,满足光学综合孔径中单个子镜的相位调制精度要求。

Development of the readout system for waveguide multilayer optical card

Waveguide multilayer optical card (WMOC) is a novel storage device of three-dimensional optical information. An advanced readout system fitting for the WMOC is introduced in this paper. The hardware mainly consists of the light source for reading, WMOC, motorized stages addressing unit, microscope imaging unit, CCD detecting unit and PC controlling & processing unit. The movement of the precision motorized stage is controlled by the computer through Visual Basic (VB) language in software. A control panel is also designed to get the layer address and the page address through which the position of the motorized stages can be changed. The WMOC readout system is easy to manage and the readout result is directly displayed on computer monitor.

基于介电润湿液体棱镜阵列的光束调整器

为实现在三维空间上对不同光束(平行光、会聚光、发散光)的调整,提出了一种基于介电润湿液体棱镜阵列的光束调整器。根据几何光学、矩阵光学和介电润湿理论,推导出光学传递函数,分析了该光束调整器的控光能力,讨论了工作电压对光束调整器调控性能的影响,并通过仿真模型的验证。结果表明,该光束调整器可以实现平行光的扩束、缩束、平移、会聚和发散;还可对发散光进行光束调整,改变出射光的发散角度、使其变成会聚光或平行光;同时,该光束调整器还可以实现对会聚光进行调节的作用,出射光可以为会聚光、平行光或发散光。当直径为5 mm的平行光经光束调整器,其直径变化范围为3.08~6.92 mm,可左右平移0~0.92 mm,其焦距f可在7.96 mm~∞(双层液体界面为双凸形)范围内或在-∞^-25.99 mm(双层界面为双凹形)范围内调节;对于发散角为20°的发散光,经过该光束调整器,当出射光为发散光时,其发散角的变化范围为0°~45.7°,当出射光为会聚光时,其会聚角的变化范围为0°~14.48°;对于会聚角为20°的会聚光,当出射光为会聚光时,其会聚角的变化范围为0°~49.88°,而当出射光为发散光时,其发散角的变化范围为0°~16.02°。

Comprehensive study of efficient dye-sensitized solar cells based on the binary ionic liquid electrolyte by modifying with additives and iodine

The photovoltaic performance of dye-sensitized solar cells （DSSCs） is enhanced by modifying the binary room tem- perature ionic liquid （RTIL） electrolyte with additives and iodine. The average photoelectric conversion efficiency （PCE） of 6.39% is achieved. Through electrochemical impedance spectroscopy （EIS）, cyclic voltammetry scans and incident photon-to-current conversion efficiency （1PCE） data, the working principles are analyzed. The enhancement is mainly attributed to the improvement of short circuit current which is caused by the reduction of overall internal resistance of the devices. Durability tests are measured at room temperature, and the long-term stability performance can be maintained.

Simulation of beam steering control in arrayed liquid prisms system based on electrowetting-on-dielectric

In this paper,an arrayed liquid prisms system based on electrowetting-on-dielectric(EWOD)is proposed to modulate the three-dimensional beam steering control.The relationships between beam steering control range,electrowetting contact angle,and liquid refractive index are derived.COMSOL is employed to demonstrate the beam steering control properties of the electrowetting-based arrayed liquid prisms when bias voltages are applied.The influence of contact angle,liquid refractive index,and interval between adjacent prisms are discussed.The results show that the beam steering control performance of the system will be greatly improved,and the range of beam steering angle is−20°to 20°by selecting optimum combinations of liquids and rational interval between adjacent prisms.The arrayed liquid prisms system can succeed to achieve continuous control of beam steering in a conical region with an apex angle of 40°,and the vertex of the circular cone is located at the 15.02 mm in the z-axis.The proposed system will promote the development of non-mechanical beam steering technology and have a wide range of applications.