摘要:
A device for detecting airborne pathogens, comprising a mask and a detection test strip; the test strip at least comprising a sample collection area, and a test/control color developing area, the test strip is arranged on the inner side of the mask, aligns the sample collection area with the user's mouth; the structural design of the mask provides a rapid collection unit to collect the droplets generated by the user's speech, singing, coughing, sneezing, or exhalation, into a test sample. After a period of wearing time, when the accumulated droplet volume is enough to pass through the liquid buffer segment, the target pathogens or biochemical molecules bonded with aptamer-modified gold nanoparticles in the flow can arrive test/control color development area; when the user takes off the mask, he can directly observe whether the test/control color development area of the test strip shows a positive reaction with the naked eye.
摘要:
A long time monitoring and self-powered solar light-emitting diode (LED) lamp wireless sensor device, capable of monitoring bridge, building or structure in real-time. The device comprises a substrate, at least one LED lamp bead, a rechargeable battery, a solar cell, at least one wireless communication module, at least one sensor and a control unit. The device is contained in a casing having a transparent region and a waterproof function. The solar cell stores energy into the rechargeable battery in sunshine environment, and by comparing the sensing value with a threshold, it is determined whether a safety issue occurs, so as to emit alert. In the night, the rechargeable battery supplies power to the LED lamp beads for illumination or decoration lighting of the structure. Wireless communication links the entire system for providing safety monitoring information, LED lighting or decoration instruction.
摘要:
The present invention provides a method for determining a position of a router having Bluetooth 4.0 or a later version communication function and WiFi communication function, comprising: providing a plurality of LED lamps each having Bluetooth 4.0 or a later version communication function; constructing a map comprising the locations of the plurality of LED lamps, and saving the map on a cloud server; periodically scanning in the router's Bluetooth communication range Bluetooth identifications (BTIDs) and received signal-strength indicators (RSSIs) of one or more of the plurality of LED lamps, and transmitting via WiFi the BTIDs and RSSIs to the cloud server; and determining the position of the router in the map based on BTIDs and RSSIs of at least three of the plurality of LED lamps by a triangulation method.
摘要:
A method for packaging micromachined devices fabricated by MEMS and semiconductor process is disclosed in this invention. The method employed etching technique to etch a trench surrounding the micromachined components on each chip of the first wafer down to the bottom interconnection metal layer. The said trench can accommodate the solder of flip-chip packaging. On each chip of the second wafer, or called as the second chip, a surrounding copper pillar wall corresponding to the trench on the first chip is deposited. By wafer-level packaging, the trench on the first chip is aligned to the pillar wall, and then bonded together with elevated temperature. The face-to-face chamber formed between two chips can allow the movement of the micromachined structures. Further, the signal or power connections between two chips can be established by providing several discrete pillar bumps.
摘要:
A structure and method of forming pillar bumps with controllable shape and size are provided, which use polishing planarization technology to eliminate shape difference among pillar bumps on a wafer and die, thus yield the pillar bumps with design shape and size.
摘要:
An apparatus applied to detect the human breath gas, including a substrate which carries a circuit module, a CNT-based (carbon nanotube) gas sensing element, a wireless transmission/receiver module, and a power supplier, etc. and a clamp structure that could be clamped on the columella between the nostrils. The detectable gas also includes the bioaerosol in the gas. The CNT-based gas sensors react with the breath air and detect whether the specific gas and bioaerosol in the air or not while breathing in and out and the temperature of the air could be measured. This invention can measure the electric response of the CNT-based gas sensor, process the signal by the circuit module and transmit the processed signal to the wireless receiver by wireless transmission/receiver module. And the wireless signal receiver will differentiate the species, concentration and temperature of the gas and provide a warning signal while the specific gas or bioaerosol is detected. The apparatus is portable and has the functions of rapid response and high sensitivity.
摘要:
The method and apparatus of the invention is used to heat the surface of the mold insert or cavity by high frequency current. There are holes near the heated surface in the mold and the coils can be installed into the holes. The coils surround the heated surface and are conducted with high frequency current. Due to the directional change of the current, the blocks that are surrounded by the coils will be heated by the hysteresis losses and the eddy-current losses. The surface of the mold insert or cavity will be heated rapidly. There are cooling holes set near the heated surface or beside the coil-pipe. The cooling liquid or air can flow in the holes to carry out extra energy and the temperature of the mold will be decreased. The position of the cooling holes, the flow speed and temperature deviation of the liquid and air will influence the temperature of the mold. The method and apparatus will improve the quality of the thermal-plastic products and elevate the number of the cavity.
摘要:
A high frequency induction heater built in an injection mold. The high frequency induction heater has a metal or silicon mold-insert, at least a heating module and at least a thermometer detector. The elements are reasonably fit with the mold-insert utilizing well-defined MEMS technology and UV-LIGA process. The high frequency induction heater is employed to apply a local heat for a microstructure of mold-insert during the micro molding process. By using the high frequency induction heater a fluid mold flow and high aspect ratio replication is achieved.
摘要:
This invention disclosed a corona discharge apparatus composed of a plurality of substrate deposited with matrix of carbon nanotubes. By using ventilation device, the airflow can pass through the corona discharge apparatus, and the electric charge produced due to the corona discharge on the carbon nanotubes. The electric charge impacts oxygen molecular is divided two oxygen atoms. The reaction of oxygen molecular and oxygen atom can produce ozone. Furthermore, by performing corona discharge, at least part of the particle of gas will become charged particle, and the present invention further comprises a particle collector used to collect the charged particle. When the particle in the air followed by airflow pass through the corona discharge apparatus, the electric charge produced due to corona discharge on the carbon nanotubes can attach to the particle to achieve the charging.
摘要:
A micro-heating apparatus for locally controlling a temperature in a mold includes substrate, at least a micro-heating module installed on the substrate, and at least a temperature detector installed on the substrate near the micro-heater for measuring the local temperature. The micro-heating module includes a micro-heater, an external power circuit, and a connection electrode for connecting the external power circuit and a programmable external power device. The substrate with the micro-heating module and the temperature detector thereon is capable of combining with the mold so that the micro-heater contacts a plastic material in the mold. The programmable external power device is used for connecting to the external power circuit to control the micro-heater to heat the plastic material so as to control the temperature when the temperature around an interface of the plastic material and the micro-heater is measured.