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LCOS微显示技术 透射式和反射式 相位或强度调制 像素高达1920 x 1080 2π范围相移 1000:1动态范围 衍射效率高，填充因子大 另提供Kit和OEM类型，即采用板卡控制，价格便宜，体积小巧，可方便客户集成到系统中

The active control of laminar and turbulent flows with dynamic actuators is of great scientific and technological interest in nearly all fields of fluid mechanics. Today, most of the well established actuator concepts are based on pneumatic and micro-mechanic bases. However, owing to their limited dynamic range, their potential seems to be limited from the present point of view [1]. Recently it was successfully demonstrated that a boundary layer flow can be efficiently controlled by using an optical actuator concept, which allows non-intrusive excitation of the flow with nearly any pulse-width and repetition-rate by heating the surface of a model with a short-focused laser pulse [2]. The drawback of the proposed and examined method was the gradual ablation of the model surface. To avoid this problem the excitation was performed above the surface in this investigation [3]. By using the phased locked stereoscopic PIV and Schlieren technique the dynamic effect of the laser induced plasma on a boundary layer flow could be examined in detail. In this contribution the main results will be summarized and the perspective of this actuation method for fundamental and applied fluid mechanics will be outlined.

很多的用户在使用步入式恒温恒湿试验室通常会遇到温度下降比较缓慢达不到测试的效果，爱佩小编总结了一下几点内容，希望可以帮助大家。详情请下载附件。

Particle Image Velocimetry (PIV) denotes a prevailing technique for imaging turbulent fluids with high-speed cameras. Corresponding image sequences provide the basis for estimating such flows and related flow patterns through image processing. While so far this technique has been applied in two dimensions (2D) in terms of an illuminated plane intersecting the volume, recent research focuses on imaging fluids directly in 3D. This paper provides a synopsis of the state-of-the-art and its connections to previous research work on image restoration. We address the basic problems involved and point out promising research directions for reconstructing scalar-valued particle functions from few tomographical measurements. Solutions to these problems will provide an essential processing step prior to the estimation of 3D flows from reconstructed volume functions.

• PIV is a fluid measurement technique that is used to determine the average displacement of a group of particles. • PIV offers advantages over particle tracking by enabling the rapid reconstruction of spatially resolved two-and three-dimensional velocity fields. • PIV has facilitated detailed measurements of a wide variety of phenomena in complex (dusty) plasmas from particle transport to DAW/DDW to thermal properties. • New developments: o Detailed benchmarking of PIV against simulations o Spatially resolved stereo-PIV o Tomographic PIV o Time-resolved PIV

A numerical implementation of the advection equation is proposed to increase the temporal resolution of PIV time series. The method is based on the principle that velocity fluctuations are transported passively, similar to Taylor’s hypothesis of frozen turbulence. In the present work, the advection model is extended to unsteady threedimensional flows. The main objective of the method is that of lowering the requirement on the PIV repetition rate from the Eulerian frequency toward the Lagrangian one.

使用英国Uniqsis公司生产的Flowsyn合成a-ketoesters 的研究。 连续流动合成是一个全新的合成方式，已经在欧洲有广泛的使用，尤其是在药物中间体的合成更是广泛。

The method is suitable for samples which contents nitrate or protein. The sample is digested with sulfuric acid in the presence of a catalyst. This converts organically bound nitrogen to ammonium sulfate. In a distillation apparatus the digestion solution is treated with NaOH and the released ammonia (NH3) is distilled into a solution of boric acid. This solution is then titrated with an acid titrant (HCl or H2SO4) to a pH endpoint of 4.65.

?现阶段科学研究对超疏水表面表征的需求呈日益增长的趋势。而可靠性和重复性是这些测量的关键因素。接触角测试是超疏水表征的常用方法，而静态接触角是其中最为常用的测试方法。另外，对于超疏水特性的研究，前进角和后退角在某些实验中同样需要被测试。

HOLOEYE空间光调制器(SLM)是基于液晶微显示技术，分为透射式和反射式。该系统可以在空间上调制光的强度和相位分布，是一种动态光学元件。光学函数和信号可以直接根据设计或像元通过计算机显示出来。结构独特，采用图像卡输出的DVI或HDMI信号，通过电寻址方式调制，实现简单。

Plasma actuators have been identified as having great promise for flow control applications. A single dielectric barrier discharge (SDBD) plasma actuator consists of two staggered electrodes separated by a dielectric layer (Fig. 1). When an AC voltage of sufficient amplitude (a few kV) is supplied to the exposed electrode, it causes the air over the covered electrode to weakly ionize, resulting in a cold plasma. An electro-mechanical coupling with the ambient air is provided by the interaction between the ionized air and the electric field between the two electrodes, generating a body force.

超级成熟的测量技术包括： 1.Microtrac独一无二的专利的3D分析技术 2.实验室和在线过程控制仪器 3.测量范围从1μm到127，000μm 4.具有湿法和干法分析功能

结合质谱和UV光谱分析，可以在单次运行中同时实现峰追踪和共流出峰的鉴定与ACQUITY UPLC H-Class四元系统结合的灵活软件可通过Auto?Blend Plus调节流动相pH值。此软件可在同一个工作流程中分析UV和质谱数据，从而简化数据分析过程

The aim of this study is to improve our knowledge of the processes that lead to clay smear during faulting of a layered sand-clay sequence in an analogue sandbox model. We carefully characterized mechanical properties of the materials used by a series of geotechnical tests. Displacement field was quantified using PIV (Particle Image Velocimetry). The model is water-saturated to allow the deformation of wet clay and sand in one experiment comprising a sand package with a horizontal layer of clay above a predefined rigid basement fault. The thickness and rigidity of the clay layer are the parameters varied in this study. The model shows a range of structures that are related to competence contrast between sand and different clay types. Results show ductile shearing of soft clay with a transition to brittle fracturing of stiff clay accompanied by the formation of rotating clay blocks in the fault zone. Localized deformation is observed through time showing (i) the propagation of one active fault migrating laterally through the sediment package, and (ii) the formation of a stable prism between two or more active faults that gets progressively smaller with minor rotation of the hanging wall fault. Continuous clay smear is observed resulting from the lateral injection of clay as well as from a reworked mixture of sand and clay.

Use of a HORIBA Jobin Yvon phosphorimeter, including gated delay of signal-acquisition, can reveal extra information, such as FRET, about the physical and chemical properties of materials.

气相色谱法具有高选择性、高灵敏度、高分离效能和快速、简便等特点，特别是浓缩色谱法的增大进样量，只要选择用适当的浓缩柱和操作条件，就可以几百倍地降低最小检测浓度，又减小了吸附的影响。我公司采用了浓缩色谱法，分析高浓度二氧化碳中微量水，固定相为国产GDX-105担体、浓缩柱为PEG-400，氢气为载气，以硫酸饱和水分压为定量标准，热导池为检测器，成功地检测了二氧化碳中ppm级的微量水，其最小检测量达0.1ppm。

将多种低温物理性能测试方法和测试仪器的集成为两个测试系统，可以在集成测试系统上实现弹性模量、热膨胀、热导率、电阻率和热辐射系数多个物理性能参数的测试。 被测材料覆盖固体金属材料、固体非金属材料、复合材料、粉体颗粒状材料和粘结剂材料。 通过低温制冷机系统和真空控制系统，可以实现4K～室温温度范围内物理性能参数测试，测试气氛可以是真空、惰性气体和大气环境，可以测试不同气氛和不同真空度条件下的材料物理性能。

UV-1100紫外可见分光光度计中的单色器结构UV-1100紫外可见分光光度计中的单色器结构UV-1100紫外可见分光光度计中的单色器结构

由于等静压成型技术生产出来的产品性能优异，而且还能制备出其他成型技术不能制备的异形产品，其应用越来越广泛。可以预料，等静压技术在特种材料制备领域，将会得到更广泛的使用，等静压设备也将会在自动化方向和提高工作效率方向得到更大的提升。

Two independently developed tomographic PIV algorithms, one developed by the fluids group at the University of Cambridge and the other by LaVision GmbH, have been used to compare various turbulence quantities computed from a common experimental dataset of locally isotropic turbulence at reasonably high Reynolds number.

介绍了材料耐候老化测试方法及户外自然曝晒及实验室加速老化测试原理。重点介绍了水性聚氨酯处理剂处理过的聚氨酯乙烯人造革的氙灯老化试验，并研究了其性能变化。

采用金相检验、扫描电镜及能谱分析对某焊接件弯曲开裂试样进行开裂原因分析。结果表明，在焊接交接部位的金属夹杂、非金属夹杂物和气孔的存在，致使弯曲试样在结晶收缩应力和焊接残余应力以及外部拉应力的作用下发生开裂。

微纳米气泡是指液体中存在的直径在100nm-100μm之间的气泡，是通过专用的气泡发生器产生的。含有微气泡的水具有很多奇特的功效：用微纳米气泡养鱼能提高产量，用微纳米气泡栽培或灌溉能促进作物生长，微纳米气泡浴能有清洁、镇静和愉悦身心的效果，向污水中注入微气泡能加速水体及底泥中污染物的生物降解过程，实现水质净化。 但是，微纳米气泡的粒度分布决定了它的性能，准确测试微纳米气泡的粒度，对验证微纳米气泡发生器的效能、评价微纳米气泡的效果至关重要。那么，怎样测试微纳米气泡的粒度呢？

一、概述 清洗钝化施工方案如下： 1、清洗钝化范围：施工的洁净管的管道、管件、阀门等。 2、用水要求：在下列所有工艺操作中所用的水均为去离子水，制水操作请甲方配合。 3、安全防护措施：在酸洗液时采用如下安全预防措施：

With stereoscopic particle image velocimetry (SPIV) we can measure all 3 components (3C) of the velocity in the plane of a laser light sheet. SPIV makes use of 2 cameras that view the laser light sheet from two different directions. In each measurement point in the plane of the light sheet, each camera measures the projection of the particle displacement perpendicular to its viewing direction, and the complete velocity vector can be reconstructed from these projections. First the 2C-vector fields from each camea must be mapped (dewarped) from the image planes onto the measurement plane of the light sheet and interpolated on a common grid. Then the displacement vectors from both cameras are combined to calculate (reconstruct) the 3 components of the particle displacement. The dewarping and reconstruction can in principle be based on the exact knowledge of the geometry of the setup, but most often they are based on a calibration procedure. The geometry of the setup is then derived from a set of calibration images from a grid placed in the measurement plane. A more extensive discussion of the dewarping, the reconstruction and the 3D-calibration procedure is given in (S1-S6).

赛默飞全新推出离子色谱（IC）和电感耦合等离子体质谱（ICP-MS)联用技术、液相色谱（HPLC）和ICP-MS联用技术，用离子色谱、液相色谱作为分离系统，ICP-MS作为高灵敏检测系统，仅需一步即可解决分析元素含量及形态分析问题。

采用德国LaVision公司的SprayMaster喷雾测量分析系统和美国Artium Technologies 公司的相位多普勒粒子分析仪PDI-200MD对喷雾的几何形态和液滴的粒径速度进行了测量获得了组合液滴尺寸分布信息。

　　激光二极管(LD)自动焦距测试系统是光通信行业中做同轴产品所必须的测试系统之一。目前做此种设备的厂商主要集中在日本、台湾地区。 　　卓立在电移台、工业机械手方面有得天独厚的优势，开发此系统产品条件较为成熟，我们将在近期内逐步推出手动和电动的激光二极管焦距测试系统。以下就目前常见的LD自动测试系统做出简要说明，供相关厂商的研发人员做参考，也可为相关厂商的焦距测试系统提供依据。

本理论解释了动态和静态接触角的概念及其区别，并通过不同的测量方法：光学和力学接触角检测来分析评价两种接触角测量方法。

基于密度调整的放大策略可在不同的系统/色谱柱配置之间高效地进行方 法转移。实现SFC分析级应用的快速方法开发，随后可转移至制备型SFC，同时维持色谱完整性。集中梯度的使用有利于目标分析物的纯化。