Abstract: An unmanned vehicle includes a vehicle body having an accommodating space, an arm assembly coupled to the vehicle body, and a floating member connected to a bottom surface of the vehicle body. The arm assembly includes a first rotating member, a second rotating member coupled to the first rotating member, and a propeller. The propeller includes a rotatable axle coupled to the second rotating member and extending along a rotating axis. The second rotating member can turn the propeller by rotating the rotatable axle about the rotating axis. The first rotating member can rotate and effect a movement of the second rotating member so as to selectively adjust the rotatable axle to align the rotating axis with a first axial direction and a second axial direction. The arm assembly can rotate relative to the vehicle body to selectively rotate into or out of the accommodating space.

Abstract: An unmanned vehicle includes a vehicle body and at least one arm assembly. The arm assembly is coupled to the vehicle body. The arm assembly includes a first rotating member, a second rotating member, and a propeller. The second rotating member is coupled to the first rotating member. The propeller includes a propeller rim encircling an outer edge of the propeller and a rotatable axle coupled to the second rotating member. The the rotatable axle extends along a rotating axis. The second rotating member is configured to turn the propeller by rotating the rotatable axle about the rotating axis. The first rotating member is configured to rotate and effect a movement of the second rotating member so as to selectively adjust the rotatable axle to align the rotating axis at least with a first axial direction and a second axial direction.

Abstract: A wheel assembly includes a housing, a wheel, and a thermal conductive assembly. The wheel is disposed inside of an enclosure of the housing, and includes a first surface, a second surface, and a wavelength conversion layer formed on a coating area of the first surface and configured to convert wavelength of a light beam. The thermal conductive assembly includes a thermal conductive structure and a thermal conductive tube. The thermal conductive structure corresponds to an edge contour of the wheel and is disposed adjacent to an outer edge of the wheel. The thermal conductive tube is coupled to the thermal conductive structure and partially protrudes to an exterior of the housing for conducting heat generated by the wheel from the thermal conductive structure to the exterior of the housing. The distance between the thermal conductive structure and the outer edge of the wheel falls within 1-50 mm.

Abstract: A phosphor wheel includes a rotating disk and a wavelength converting layer. The rotating disk has a first surface and a second surface opposite to the first surface, in which the first surface forms a coating region and a non-coating region. The wavelength converting layer is formed on the coating region of the first surface for converting a light wavelength of a light beam. In addition, an embodiment of the invention discloses a projection device having the phosphor wheel. When the rotating disk of the phosphor wheel rotates, the recess portion may disturb the air around the phosphor wheel such that the temperature of the wavelength converting layer may be effectively decreased. Simultaneously, the rotating disk has a stable dynamic balance and the rotating disk has a larger heat dissipating region because the recess portion is disposed on the rotating disk.

Abstract: An optical engine module includes a first casing with a first enclosed space, a light source at the first casing, a phosphor wheel in the first casing, a cooling fan and a heat-dissipating module. The light source emits a light beam passing through the phosphor wheel. The cooling fan is in the first enclosed space and has an airflow outlet. The heat-dissipating module includes two heat-dissipating parts and a heat-guiding part, wherein the first and second heat-dissipating parts are respectively in and outside the first enclosed space, the heat-guiding part is connected between the first and second heat-dissipating parts and the phosphor wheel is between the airflow outlet and the first heat-dissipating part. The airflow outlet and the phosphor wheel, and the phosphor wheel and the first heat-dissipating part, are at least partially overlapped with each other along the airflow exiting direction of the cooling fan.

Abstract: A projecting apparatus includes a chassis, an optical engine, a first fan set and a second fan set. The first fan set is disposed in the chassis and located at a first air outlet, and is configured to drive air to flow via a first air inlet into the chassis to form a first air flow. The first air flow flows out of the chassis via the first air outlet. The second fan set is disposed in the chassis and located at a second air outlet, and is configured to drive air to flow via the first air inlet into the chassis to form a second air flow. The second air flow flows out of the chassis via the second air outlet. A flow direction of the first air flow at the first air outlet is perpendicular to that of the second air flow at the second air outlet.

Abstract: A method for forming an aqueous polyurethane dispersion including providing an isocyanate (NCO)-terminated prepolymer with a side-chain reactive functional group by admixing (i) at least one diisocyanate, (ii) at least one difunctional polyol, (iii) a short-chain diol monomer having a side-chain reactive functional group or a modified clay thereof, (iv) at least one hydroxy carboxylic acid compound and (v) a hydrophilic cosolvent; neutralizing the NCO-terminated prepolymer with a tertiary amine; dispersing the NCO-terminated prepolymer in water; and admixing the NCO-terminated prepolymer with at least one chain extending agent comprising a hydrophilic diamine; wherein the short-chain diol monomer (iii) is expressed by structural formula (I): wherein, A is an azetidine-2,4-dione functional group or a malonamide-linked alkyl group and B is a nitrogen-linked di-hydroxy terminal group or tertiary amine-linked di-hydroxy terminal group wherein IDD was synthesized by methylenedi-p-phenyl dii

Abstract: A phosphor wheel includes a rotating disk and a wavelength converting layer. The rotating disk has a first surface and a second surface opposite to the first surface, in which the first surface forms a coating region and a non-coating region. The wavelength converting layer is formed on the coating region of the first surface for converting a light wavelength of a light beam. In addition, an embodiment of the invention discloses a projection device having the phosphor wheel. When the rotating disk of the phosphor wheel rotates, the recess portion may disturb the air around the phosphor wheel such that the temperature of the wavelength converting layer may be effectively decreased. Simultaneously, the rotating disk has a stable dynamic balance and the rotating disk has a larger heat dissipating region because the recess portion is disposed on the rotating disk.

Abstract: An optical engine module includes a first casing with a first enclosed space, a light source at the first casing, a phosphor wheel in the first casing, a cooling fan and a heat-dissipating module. The light source emits a light beam passing through the phosphor wheel. The cooling fan is in the first enclosed space and has an airflow outlet. The heat-dissipating module includes two heat-dissipating parts and a heat-guiding part, wherein the first and second heat-dissipating parts are respectively in and outside the first enclosed space, the heat-guiding part is connected between the first and second heat-dissipating parts and the phosphor wheel is between the airflow outlet and the first heat-dissipating part. The airflow outlet and the phosphor wheel, and the phosphor wheel and the first heat-dissipating part, are at least partially overlapped with each other along the airflow exiting direction of the cooling fan.

Abstract: An electronic ballast for a lighting unit may include a Power Factor Correction (PFC) circuit, an inverter, and a control circuit for controlling startup of the inverter, wherein the control circuit is coupled between the PFC circuit and the inverter and includes a switching device coupled in a startup loop for the inverter; a unidirectional conductive device coupled between a PFC power supply circuit for providing an operation current to a PFC controller of the PFC circuit and an input of the PFC controller for preventing a startup current flowing through the PFC circuit from triggering the switching device; and a triggering device coupled to the switching device and a connection point between the unidirectional conductive device and the PFC power supply circuit for controlling switch-on and switch-off of the switching device.

Abstract: A method disclosed for making a side-chain dendrimer vesicle. The method includes the steps of: At first, there is provided a random copolymer with a narrow distribution of molecular weights by active polymerization and chemical modification. Then, chemical modification is executed to graft various generations of dendrimers to the random copolymer to provide a side-chain dendritic random copolymer with various generations. Two steps of emulsification are taken to induce macromolecular self-assembling of the side-chain dendritic random copolymer solution to form the macromolecular vesicle. The side-chain dendrimer includes C10˜C18 hydrophobic alkyl chains.

Abstract: A method for forming an aqueous polyurethane dispersion including providing an isocyanate (NCO)-terminated prepolymer with a side-chain reactive functional group by admixing (i) at least one diisocyanate, (ii) at least one difunctional polyol, (iii) a short-chain diol monomer having a side-chain reactive functional group or a modified clay thereof, (iv) at least one hydroxy carboxylic acid compound and (v) a hydrophilic cosolvent; neutralizing the NCO-terminated prepolymer with a tertiary amine; dispersing the NCO-terminated prepolymer in water; and admixing the NCO-terminated prepolymer with at least one chain extending agent comprising a hydrophilic diamine; wherein the short-chain diol monomer (iii) is expressed by structural formula (I): wherein, A is an azetidine-2,4-dione functional group or a malonamide-linked alkyl group and B is a nitrogen-linked di-hydroxy terminal group or tertiary amine-linked di-hydroxy terminal group wherein IDD was synthesized by methylenedi-p-phenyl diisocy

Abstract: A method, system and apparatus for expanded membership access control in a collaborative environment. A collaborative application which has been configured for expanded membership access control can include a collaborative space configured to host places, and rooms and sub-rooms within the places. The collaborative space further can include a membership management processor coupled to the collaborative space and programmed both to produce access control lists for the rooms and sub-rooms based upon specified roles for members and to assign the roles to members added to the rooms and sub-rooms separately from the access control lists. Notably, a membership directory also can be included which can be configured to store membership information for the members exclusive of the access control lists.

Abstract: A method disclosed for making a side-chain dendrimer vesicle. The method includes the steps of: At first, there is provided a random copolymer with a narrow distribution of molecular weights by active polymerization and chemical modification. Then, chemical modification is executed to graft various generations of dendrimers to the random copolymer to provide a side-chain dendritic random copolymer with various generations. Two steps of emulsification are taken to induce macromolecular self-assembling of the side-chain dendritic random copolymer solution to form the macromolecular vesicle. The side-chain dendrimer includes C10˜C18 hydrophobic alkyl chains.

Abstract: A projecting apparatus includes a chassis, an optical engine, a first fan set and a second fan set. The first fan set is disposed in the chassis and located at a first air outlet, and is configured to drive air to flow via a first air inlet into the chassis to form a first air flow. The first air flow flows out of the chassis via the first air outlet. The second fan set is disposed in the chassis and located at a second air outlet, and is configured to drive air to flow via the first air inlet into the chassis to form a second air flow. The second air flow flows out of the chassis via the second air outlet. A flow direction of the first air flow at the first air outlet is perpendicular to that of the second air flow at the second air outlet.

Abstract: An electronic ballast for a lighting unit may include: a Power Factor Correction (PFC) circuit, an inverter, and a control circuit for controlling startup of the inverter, wherein the control circuit is coupled between the PFC circuit and the inverter and includes: a switching device coupled in a startup loop for the inverter; a unidirectional conductive device coupled between a PFC power supply circuit for providing an operation current to a PFC controller of the PFC circuit and an input of the PFC controller, for preventing a startup current flowing through the PFC circuit from triggering the switching device; and a triggering device coupled to the switching device and a connection point between the unidirectional conductive device and the PFC power supply circuit, for controlling switch-on and -off of the switching device.

Abstract: An air filter module adapted to be used with a projection module and disposed to cover an air vent of the projection module. The air filter module includes a filter component and a cleaning unit. The cleaning unit is disposed to cover the air vent and configured to drive the filter component to have a movement so as to remove the dust on the filter component according to a cleaning-start signal. A projection device adopting the air filter module is also provided.

Abstract: A wireless sensor actuator network (WSAN) is provided, which includes: at least one sensor, for sensing situations of surrounding environments to generate a transferring condition, the transferring condition corresponding to a transferring condition serial number; at least one actuator, driven by a driving signal; and a gateway, for receiving the transferring condition of the sensor corresponding to the transferring condition serial number, transferring an active state serial number to a transferring state serial number which meets the transferring condition according to an encoding table of the gateway, and executing functions called by the transferring state serial number to generate the driving signal for driving the actuator.

Abstract: Disclosed is a method for making waterborne polyurethane with a reactive functional group. The method includes the step of introducing a short-chain diol monomer with a reactive functional group into waterborne polyurethane polymer by pre-polymerization to provide a polyurethane pre-polymer with the reactive functional group connected to a side chain and the step of reacting the pre-polymer with hydrophilic diamine for chain extension and inter-crosslink to provide waterborne polyurethane with different crosslink degree.

Abstract: A method for making a side-chain dendrimer vesicle includes the following steps. At first, there is provided a random copolymer with a narrow distribution of molecular weights by active polymerization and chemical modification. Then, chemical modification is executed to graft various generations of dendrimers to the random copolymer to provide a side-chain dendritic random copolymer with various generations. Two steps of emulsification are taken to induce macromolecular self-assembling of the side-chain dendritic random copolymer solution to form the macromolecular vesicle. The side-chain dendrimer includes C10˜C18 hydrophobic alkyl chains.