摘要:
A micromixer is fabricated using a selective high intensity focused ultrasound foaming technique. The micromixer employs a 3D porous region for effective mixing. The 3D porous micromixer can achieve sufficient mixing results with a short mixing length for flows with a Reynolds number as low as 0.1. The fabrication process of the micromixer is rapid, low-cost, and biocompatible. The pore size of the micromixer can be controlled by adjusting the selective high intensity focused ultrasound foaming parameters. The micromixer has potential for use in lab-on-a-chip and micro-total-analysis devices.
摘要:
A selective high intensity ultrasonic foaming technique is described to fabricate porous polymers for biomedical applications. Process variables, including ultrasound power, scanning speed, and gas concentration have an affect on pore size. Pore size can be controlled with the scanning speed of the ultrasound insonation and interconnected porous structures could be obtained using a partially saturated polymers. A gas concentration range of 3-5% by weight creates interconnected open-celled porous structures. The selective high intensity ultrasonic foaming method can be used on biocompatible polymers so as not to introduce any organic solvents. The method has use in cell related biomedical applications such as studying cell growth behaviors by providing a porous environment with varying topological features.
摘要:
A polymeric chip having at least one three-dimensional porous scaffold, a microfluidic channel inlet to the porous scaffold, and a microfluidic channel outlet from the porous scaffold. In one embodiment, the polymeric chip has two three-dimensional porous scaffolds: one scaffold comprises liver cells and the other scaffold comprises cancer cells. The chip can be used as a multi-organ tissue model system.
摘要:
A selective high intensity ultrasonic foaming technique is described to fabricate porous polymers for biomedical applications. Process variables, including ultrasound power, scanning speed, and gas concentration have an affect on pore size. Pore size can be controlled with the scanning speed of the ultrasound insonation and interconnected porous structures could be obtained using a partially saturated polymers. A gas concentration range of 3-5% by weight creates interconnected open-celled porous structures. The selective high intensity ultrasonic foaming method can be used on biocompatible polymers so as not to introduce any organic solvents. The method has use in cell related biomedical applications such as studying cell growth behaviors by providing a porous environment with varying topological features.
摘要:
A polymeric chip having at least one three-dimensional porous scaffold, a microfluidic channel inlet to the porous scaffold, and a microfluidic channel outlet from the porous scaffold. In one embodiment, the polymeric chip has two three-dimensional porous scaffolds: one scaffold comprises liver cells and the other scaffold comprises cancer cells. The chip can be used as a multi-organ tissue model system.
摘要:
A micromixer is fabricated using a selective high intensity focused ultrasound foaming technique. The micromixer employs a 3D porous region for effective mixing. The 3D porous micromixer can achieve sufficient mixing results with a short mixing length for flows with a Reynolds number as low as 0.1. The fabrication process of the micromixer is rapid, low-cost, and biocompatible. The pore size of the micromixer can be controlled by adjusting the selective high intensity focused ultrasound foaming parameters. The micromixer has potential for use in lab-on-a-chip and micro-total-analysis devices.
摘要:
A number automatic routing method, an updating method, a withdrawing method, a router and a device is provided wherein the number automatic routing method includes: converting to-be-distributed number into number routing information to add to dynamic routing protocol; generating a dynamic routing protocol message according to the number routing information; transmitting the dynamic routing protocol message through an Internet Protocol (IP) network and distributing the number through the dynamic routing protocol message and the IP network. The method supports automatic routing of numbers such as E.164 and E.214 and SP through expanding current Multi-Protocol Border Gateway Protocol (MP-BGP) that optimizes network structure and improves efficiency.
摘要:
A number automatic routing method, an updating method, a withdrawing method, a router and a device is provided wherein the number automatic routing method includes: converting to-be-distributed number into number routing information to add to dynamic routing protocol; generating a dynamic routing protocol message according to the number routing information; transmitting the dynamic routing protocol message through an Internet Protocol (IP) network and distributing the number through the dynamic routing protocol message and the IP network. The method supports automatic routing of numbers such as E.164 and E.214 and SP through expanding current Multi-Protocol Border Gateway Protocol (MP-BGP) that optimizes network structure and improves efficiency.
摘要:
Devices and methods for optimizing electronic device usage by visualizing access history on a display of the electronic device while the device is in sleep mode are provided. The electronic device usage alert method includes collecting electronic device access history on an electronic device, obtaining electronic device access statistics from the electronic device access history, generating a visual representation of the electronic device access statistics, and displaying the visual representation on an always on display (AOD) of the electronic device. The AOD is active only when the electronic device is asleep. Reducing usage of electronic devices or certain applications have many advantages including mitigating the user addiction of electronic devices or applications.
摘要:
Systems and methods of text editing are disclosed. A system may include a touchscreen, a memory, and a processor. A method may include receiving, from an electronic pen in communication with the processor, pressure signals indicating a detection of a first amount of pressure at a pen tip. In response to receiving the pressure signals, handwriting recognition may be activated. Touch input representing handwriting a first location of the touchscreen may then be received, and the touch input may then be converted into rendered textual content corresponding to the handwriting.