In a method of manipulating particles suspended in a liquid medium, a moving standing wave ultrasonic vibration and an electrical field capable of generating a dielectrophoretic force on the particles are applied. The ultrasonic vibration may be applied to move the particles from a first suspending ...
phase, form - (physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated from other material by the phase boundary; "the reaction occurs in the liquid phase of the system" colloid - a mixture with properties ...
百度试题 结果1 题目1 In which changes do the particles move further apart? D W X gas = liquid = solid Y Z A W and X B Wand Z C Xand Y D Y and Z 相关知识点: 试题来源: 解析 D 反馈 收藏
colloidal particles move in the carrier liquid under the action of several forces and torques. when the particles carry a dipole moment, electric or magnetic, as in ferrofluids, the rotational and translational motions are coupled because the field on a particle depends on the spatial and direction...
When a drive circuit 4 drives a piezoelectric element 3, a diaphragm 5 vibrates and, as a result, the nozzle 13 vibrates in its length direction. As the nozzle 13 vibrates, drops of the sample liquid are formed at the front end of the nozzle 13 and the drops move toward the front ...
In both cases theory could be reconciled with experiment, but only if space charge, modified electric force due to the geometry of the system, effective density of the ball in the liquid for inertial force calculation and modified viscous drag due to a high Reynolds number of movement were ...
Massive particles do not move instantaneously, but accelerate from rest when the vibration is started. The time dependence of the initial velocity (averaged over up to 165 runs per particle) is shown in Fig. 2a. The particles noticeably accelerated up to the steady state on a time scale of ...
Just as the Avogadro’s number can be determined from the Brownian motion of a suspended particle in a liquid, the size of the collective can be inferred from the random motion of any unit. For self-propelled Vicsek particles, we demonstrate an inverse proportionality between the diffusion ...
‘Solid’ glass can actually be better described as a slow-moving liquid. The particles in glass can move, just like in a regular liquid, because they are not fixed in an orderly structure. In glass, this movement is so slow that it cannot be detected during a person’s lifetime or ev...
PREPARATION OF ENZYMES IN PARTICULATE FORM A process for preparing an enzyme composition in particulate form by centrifugally dispersing a liquid containing an enzyme and a binder from identical teeth which move along a circular path in a horizontal or substantially horizontal pl... P Eygermans 被...