Abstract: The invention relates to a method for analyzing a lubricating oil for low temperature properties. The method utilizes 2-dimensional gas chromatography (2D GC) to determine the amounts of paraffins and isoparaffins in the oil. In particular, the method analyzes for a particular isoparaffin fraction which is correlated to low temperature performance. The compositional information thus obtained is correlated with formulated oil Mini Rotary Viscometer (MRV) properties.

Abstract: The invention provides a heat-dissipation device and a heat-dissipation method thereof. The electronic device includes a heat source, a thermal interface material (TIM) in contact with the heat source, a heat-dissipation module in contact with the thermal interface material, and an elastic member pushing the heat-dissipation module toward the heat source. The elastic member includes a base and a compressible portion extending from the base, whereby a force, applied to the compressible portion, is transmitted to and uniformly distributed on the base. The heat-dissipation method includes the steps of overlapping a thermal interface material and a heat-dissipation module on the heat source, and exerting a force toward the heat source to the heat-dissipation module.

Abstract: A centrifugal fan includes a spiral housing, a driving mechanism and multiple internally mounted impellers. The driving mechanism and the centrifugal impeller, rotated by the driving mechanism, are installed in the spiral housing. A spiral flow channel is defined between the centrifugal impeller and the spiral housing. When the centrifugal impeller rotates, airflow is sucked axially into the spiral housing through an inlet opening and moves along each blade of the centrifugal impeller into the spiral flow channel. The centrifugal impeller includes a hub and multiple blades. Each blade is secured to the hub at one end and has at least one vertical convex strip or vertical concave strip at an opposite end, wherein the vertical convex strip or vertical concave strip on each of blade disturbs the airflow across thereof and reduces narrow-band noise.

Abstract: A centrifugal fan is described. The centrifugal fan is suitable for a portable electrical apparatus. A tongue shape is formed from a volute sidewall of a casing of the centrifugal fan and non-parallel to a rotational axis of blades. Therefore, when the blades rotate to generate a wake flow to blow on a surface of the volute sidewall at the tongue shape, noise generated by the centrifugal fan can be decreased.

Abstract: An extended fin array has a main heat-dissipation module and an extended heat-dissipation module. The main heat-dissipation module and the extended heat-dissipation module are stacked to increase the effective convective area to increase the heat-dissipation effect. The extended heat-dissipation module is in the main heat-dissipation module when the heat amount generated by an electronic device is normal. The extended heat-dissipation module extends out from the main heat-dissipation module to increase the heat convection area when the heat amount generated by the electronic device is large.

Abstract: A heat dissipation device for dissipating heat form a heat source includes a control unit, a sensor, a first heat dissipation module, a second heat dissipation module, and a driving mechanism. The sensor electrical connects with the control unit and detects a temperature of the heat source, and reports the temperature to the control unit. The second heat dissipation module is retractably connected to the first heat dissipation module. The driving mechanism is electrically connected to the control unit and the second heat dissipation module. When the temperature exceeds a first temperature, the control unit informs the driving mechanism to extend away from the second heat dissipation module with respect to the first heat dissipation module.

Abstract: An aluminum extruded fin set includes a substrate and a plurality of dissipation fins mounted upright on it. There are gaps between heat dissipation fins. Each dissipation fin is divided into three child dissipation fins by two slanted cutouts. The child dissipation fin between two slanted cutouts is bent toward the gap between heat dissipation fins. When airflow passes by the gaps, the airflow velocity distribution is modified due to the bent child dissipation fins and the noise spectrum distribution is modified as well. Such a Hay-stack noise spectrum distribution is more comfortable for the listener than a conventional one.

Abstract: The invention provides a heat-dissipation device and a heat-dissipation method thereof. The electronic device includes a heat source, a thermal interface material (TIM) in contact with the heat source, a heat-dissipation module in contact with the thermal interface material, and an elastic member pushing the heat-dissipation module toward the heat source. The elastic member includes a base and a compressible portion extending from the base, whereby a force, applied to the compressible portion, is transmitted to and uniformly distributed on the base. The heat-dissipation method includes the steps of overlapping a thermal interface material and a heat-dissipation module on the heat source, and exerting a force toward the heat source to the heat-dissipation module.

Abstract: Remote control system of an electric equipment comprises a control plane and an under-control plane. The control plane comprises a micro controller. A channel switch module has a plurality of channels, and the micro controller is electrically connected to the channel switch module to select one channel of the pluralities of channels or perform a channel switch of the pluralities of channels. A first blue tooth module is electrically connected to the micro controller. A first antenna is connected to first blue tooth module to emit a blue tooth wireless communication signal of the selected channel of the micro controller. The under-control plane comprises a plurality of antennas to receive the blue tooth wireless communication signal. A plurality of second blue tooth modules are connected to the pluralities of antennas respectively. A plurality of control modules are electrically connected to the pluralities of second blue tooth modules respectively.

Abstract: A heat dissipation device for dissipating heat form a heat source includes a control unit, a sensor, a first heat dissipation module, a second heat dissipation module, and a driving mechanism. The sensor electrical connects with the control unit and detects a temperature of the heat source, and reports the temperature to the control unit. The second heat dissipation module is retractably connected to the first heat dissipation module. The driving mechanism is electrically connected to the control unit and the second heat dissipation module. When the temperature exceeds a first temperature, the control unit informs the driving mechanism to extend away from the second heat dissipation module with respect to the first heat dissipation module.

Abstract: A system for generating milling codes includes a plurality of personal computers (10), a database (14), and an application server (12). The application server, connected between the personal computers and the database, includes a circular hole handling module (125), for handling circular holes of an engineering drawing, and receiving relevant parameters of the circular holes; a non-circular hole handling module (126), for determining and handling all non-circular holes of the engineering drawing, and receiving relevant parameters of the non-circular holes; a milling path generating module (128), for generating milling paths according to the parameters of the circular holes and the non-circular holes; and a milling code generating module (129), for generating milling codes according to the milling paths. A related method for generating milling codes is also provided.

Abstract: An aluminum extruded fin set includes a substrate and a plurality of dissipation fins mounted upright on it. There are gaps between heat dissipation fins. Each dissipation fin is divided into three child dissipation fins by two slanted cutouts. The child dissipation fin between two slanted cutouts is bent toward the gap between heat dissipation fins. When airflow passes by the gaps, the airflow velocity distribution is modified due to the bent child dissipation fins and the noise spectrum distribution is modified as well. Such a Hay-stack noise spectrum distribution is more comfortable for the listener than a conventional one.

Abstract: A dissipation module has a dissipation fin module and a centrifugal fan. The centrifugal fan outputs airflow towards the dissipation fin module to remove the heat from it. The centrifugal fan includes a centrifugal impeller mounted on a motor. An outer housing houses the motor and the centrifugal impeller. Convex members or concave portions are formed on an inner wall of the housing outlet so as to reduce noise. The dissipation fin module includes a fin set closely attached to a heat source, as well as an airflow channel housing. Convex members or concave portions are also formed on an inner wall of the airflow channel for reducing noise.

Abstract: An extended fin array has a main heat-dissipation module and an extended heat-dissipation module. The main heat-dissipation module and the extended heat-dissipation module are stacked to increase the effective convective area to increase the heat-dissipation effect. The extended heat-dissipation module is in the main heat-dissipation module when the heat amount generated by an electronic device is normal. The extended heat-dissipation module extends out from the main heat-dissipation module to increase the heat convection area when the heat amount generated by the electronic device is large.

Abstract: Disclosed is a converter for interface card comprising a casing and a circuit board. The casing encapsulates the circuit board. The circuit board is provided with a connector at one end to be connected to a connector slot of a first interface protocol provided in a computer and a slot connector at the other end to be connected by a connector of a second interface protocol of an interface card. The circuit board is also provided with necessary wires and electronic components, to provide exchange of signals and electricity between a plurality of pins of said connector and a plurality of pins of said slot connector. The connector and the casing portion adjacent to said connector form a first size and the slot connector and the casing portion adjacent to said slot connector define a space of a second size. In one embodiment of this invention, the first size is smaller than the second size, while in another embodiment, the first size is greater than the second size.

Abstract: A power apparatus having a built-in powerline networking adapter is revealed. This invented power adapter includes one electrical plug and one body. The electrical plug is purposed to connect a called powerline networking, for instance, the home powerline. The body includes at least one electrical outlet and one networking adapter. The at least electrical outlet is purposed to connect this electrical plug for power supply. This networking adapter connects this electrical plug to transport the signal and data packets along the powerline. The above power apparatus having a built-in powerline networking adapter is capable of utilizing one cable to connect the electrical plug and the body in order to undergo electrical conductivity and possess the function of power line lengthening and networking physical extension.

Abstract: A centrifugal fan is described. The centrifugal fan is suitable for a portable electrical apparatus. A tongue shape is formed from a volute sidewall of a casing of the centrifugal fan and non-parallel to a rotational axis of blades. Therefore, when the blades rotate to generate a wake flow to blow on a surface of the volute sidewall at the tongue shape, noise generated by the centrifugal fan can be decreased.

Abstract: A power apparatus having a built-in powerline networking adapter is revealed. This invented power adapter includes one electrical plug and one body. The electrical plug is purposed to connect a called powerline networking, for instance, the home powerline. The body includes at least one electrical outlet and one networking adapter. The at least electrical outlet is purposed to connect this electrical plug for power supply. This networking adapter connects this electrical plug to transport the signal and data packets along the powerline. The above power apparatus having a built-in powerline networking adapter is capable of utilizing one cable to connect the electrical plug and the body in order to undergo electrical conductivity and possess the function of power line lengthening and networking physical extension.