Abstract: A power supply includes a power supply module supplying power for a motherboard, a receiving module, a controlling module, and a switch module. The receiving module receives an unique authorized code and determines if the unique authorized code matches a preset code, which can send a switch-on signal to the controlling module when the unique authorized code matches the preset code. The controlling module sends a high-logic level to the switch module upon receiving the switch-on signal, to switch on the switch module to connect the power supply module with the motherboard. The receiving module sends a switch-off signal to the controlling module when the unique authorized code does not match the preset code, and the controlling module sends a low-logic level to the switch module, to switch off the switch module to disconnect the power supply module from the motherboard.

Abstract: An operation tracking method creates a database recording unique identifiers of users and operation listings of the users. The method records operation information of the user in the operation listing of the user, and recovers each finalized data to the corresponding original data according to the operation information of the user when the user logs out of the electronic device. The method further recognizes the unique identifier of a current user when the current user logs into the electronic device, and recovers each original data to the corresponding finalized data according to the operation information of the current user recorded in the operation listings of the current user corresponding to the unique identifier of the current user.

Abstract: According to one embodiment, a semiconductor light emitting device includes a first semiconductor layer of a first conductivity type, a second semiconductor layer of a second conductivity type, and a light emitting layer provided between the first semiconductor layer and the second semiconductor layer and configured to emit a light having a peak wavelength of 440 nanometers or more. Tensile strain is applied to the first semiconductor layer. An edge dislocation density of the first semiconductor layer is 5×109/cm2 or less. A lattice mismatch factor between the first semiconductor layer and the light emitting layer is 0.11 percent or less.

Abstract: A fan testing system includes a computer, a testing module, and a fan. The fan includes a fan body and a controller. The testing module includes a storing unit and an executing unit. The storing unit stores a reference range value, a standard speed control value, and a standard speed value. The executing unit sends the standard speed control value to the controller. The controller drives the fan body to rotate, get a current speed value, and sends the current speed value to the executing unit. The executing unit outputs pass information to the computer after determining a difference value between the current speed value and determining if the standard speed control value is within the reference range value. The executing unit outputs failed information to the computer upon the determining that the difference value exceeds the reference range value. A fan testing method is also provided.

Abstract: A method of damaging cell structure of an aquatic substance includes: providing an aquatic substance raw material, where the aquatic substance raw material includes an aquatic substance; adjusting a water content in the aquatic substance raw material to form an aquatic substance slurry to be processed; placing the aquatic substance slurry to be processed in a pressure container; introducing a compressed gas into the pressure container to enable the compressed gas and the water in the aquatic substance slurry to be processed to form an acidic fluid, and making the cell structure of the aquatic substance hydrolyzed and damaged by the acidic fluid; and performing a depressurizing step to separate the compressed gas.

Abstract: Dispersions of graphenic carbon particles are produced using a polymeric dispersant. The polymeric dispersant includes an anchor block comprising glycidyl (meth)acrylate, 3,4-epoxycyclohexylmethyl(meth)acrylate, 2-(3,4-epoxycyclohexyl)ethyl(meth)acrylate, allyl glycidyl ether and mixtures thereof, reacted with a carboxylic acid comprising 3-hydroxy-2-naphthoic acid, para-nitrobenzoic acid, hexanoic acid, 2-ethyl hexanoic acid, decanoic acid and/or undecanoic acid. The polymeric dispersant also includes at least one tail block comprising at least one (meth)acrylic acid alkyl ester.

Abstract: Co-dispersions of different types of graphenic carbon particles are produced using a polymeric dispersant. A portion of the graphenic carbon particles may be thermally produced. The polymeric dispersant may include an anchor block comprising glycidyl (meth)acrylate, 3,4-epoxycyclohexylmethyl(meth)acrylate, 2-(3,4-epoxycyclohexyl)ethyl(meth)acrylate, allyl glycidyl ether and mixtures thereof, reacted with a carboxylic acid comprising 3-hydroxy-2-naphthoic acid, para-nitrobenzoic acid, hexanoic acid, 2-ethyl hexanoic acid, decanoic acid and/or undecanoic acid. The polymeric dispersant may also include at least one tail block comprising at least one (meth)acrylic acid alkyl ester.

Abstract: A detecting system includes a motherboard, and an embedded controller. The motherboard includes a complementary metal-oxide-semiconductor transistor (CMOS) chip and a basic input/output system (BIOS). The embedded controller is configured to store a maximum preset speed and a minimum preset speed of each of a plurality of fans. The embedded controller is configured to detect an actual speed of each fan and further configured to determine if the detected actual speed is greater than the maximum preset speed or less than the minimum preset speed. The embedded controller is configured to call the BIOS to store the detected actual speed into the CMOS chip when the detected actual speed is greater than the maximum preset speed or less than the minimum preset speed. The BIOS is configured to read the detected actual speed stored in the CMOS chip to display and report the errors.

Abstract: A touch-sensitive method is applied in a touch-sensitive device including a touch-sensitive screen. The method includes the following steps. Detecting touch points on the touch-sensitive screen according to touch signals from the touch-sensitive screen. Determining a covered area of the touch points. Identifying a shape and a size of the covered area. Determining which part of a finger touches the touch-sensitive screen according to the identified shape and identified size of the covered area. Controlling the touch-sensitive device to perform different operations according to which part of the finger touches the touch-sensitive screen.

Abstract: In a method of booting a computing device, the computing device includes a system disk and an embedded controller. The computing device removes a master boot record (MBR) and a disk partition table (DPT) from a master boot sector to a hidden sector of the system disk. The computing device installs a predetermined verification program in the master boot sector, and executes the verification program. Once the verification program receives a predetermined identification code from the embedded controller, the computing device is booted by the verification program according to the MBR and DPT in the hidden sector.

Abstract: An illumination system, a projection device, and an illumination method are provided. The illumination system includes a polarized light source, a polarization switching element, a beam splitting element, a wavelength conversion element, a reflective element, and a wave plate. The polarized light source emits a polarized light beam with a first color. The polarization switching element switches a polarized direction of the polarized light beam at different time points. The beam splitting element separates polarized light beams having different polarized directions. The wavelength conversion element converts the polarized light beam having a first polarized direction to a converted light beam. The reflective element reflects the polarized light beam having a second polarized direction to form a reflected light beam. The beam splitting element combines the converted light beam and the reflected light beam comes from the wave plate disposed between the beam splitting element and the reflective element.

Abstract: An infrared control system includes one or more target terminal assemblies, a control device, and an infrared controller which creates a coupling between a terminal assembly and the control device. The terminal assembly includes a plurality of terminals which recognize infrared signals. The control device includes a setting module used to set parameters of each terminal assembly. The parameters include an Identification of Position (IP) of a working terminal in a predetermined time. The infrared controller can open a particular terminal according to the parameters which are set. The disclosure further provides an infrared control method.

Abstract: In a method of unlocking an electronic device using an iris key, the iris key transmits an iris signal of a current user to the electronic device. The electronic device reads one or more pre-stored iris signal templates, and compares the received iris signal with the one or more iris signal templates. When the received iris signal matches with one of the one or more iris signal templates, the electronic device can be unlocked.

Abstract: In a method for controlling buttons of an electronic device, a facial image of a user is captured by an image capturing unit installed in the electronic device. The method determines a button of the electronic device which corresponds to a point of focus on the electronic device, based on the facial image. When an audio signal of the user is detected by an audio collection unit installed in the electronic device, a control command is recognized from the audio signal, and a function of the button is activated to perform the required function of the electronic device based on the control command.

Abstract: In a method of upgrading an operating system of an electronic device, the electronic device sends an informing message to inform a basic input-output system (BIOS) of the electronic device, when the operating system is determined to be upgraded by the electronic device. Once the electronic device is wakened from a sleep mode by the BIOS, the electronic device upgrades the operating system, and controls the electronic device to enter the sleep mode when the operating system is upgraded.

Abstract: In a method for protecting private information stored in a mobile device, a first instruction is received to activate a private protection function of the mobile device. A second instruction is received to select a private information stored in the mobile device. The mobile device is connected to a pair of glasses and the selected private information is transmitted to the pair of glasses. The selected private information is displayed on a visual screen of the pair of glasses, and not displayed on a screen of the mobile device.

Abstract: According to one embodiment, a semiconductor light emitting device includes a first semiconductor layer, a light emitting layer, a second semiconductor layer, and a low refractive index layer. The first semiconductor layer has a first major surface and a second major surface being opposite to the first major surface. The light emitting layer has an active layer provided on the second major surface. The second semiconductor layer is provided on the light emitting layer. The low refractive index layer covers partially the first major surface and has a refractive index lower than the refractive index of the first semiconductor layer.

Abstract: According to one embodiment, a semiconductor light emitting device includes an n-type semiconductor layer, a p-type semiconductor layer, a light emitting layer, a first intermediate layer, and a second intermediate layer. The n-type and p-type semiconductor layers include a nitride semiconductor. The light emitting layer is provided between the n-type and p-type semiconductor layers, and includes barrier layers and a well layer. A bandgap energy of the well layer is less than that of the barrier layers. The first intermediate layer is provided between the light emitting layer and the p-type semiconductor layer. A bandgap energy of the first intermediate layer is greater than that of the barrier layers. The second intermediate layer includes first and second portions. The first portion is in contact with a p-side barrier layer most proximal to the p-type semiconductor layer. The second portion is in contact with the first intermediate layer.

Abstract: According to one embodiment, a nitride semiconductor device includes a foundation layer and a functional layer. The foundation layer is formed on an Al-containing nitride semiconductor layer formed on a silicon substrate. The foundation layer has a thickness not less than 1 micrometer and including GaN. The functional layer is provided on the foundation layer. The functional layer includes a first semiconductor layer. The first semiconductor layer has an impurity concentration higher than an impurity concentration in the foundation layer and includes GaN of a first conductivity type.

Abstract: Lithium ion battery electrodes including graphenic carbon particles are disclosed. Lithium ion batteries containing such electrodes are also disclosed. The graphenic carbon particles may be used in cathodes of such batteries by depositing a graphenic carbon particle-containing coating of a conductive substrate such as a metal foil The use of graphenic carbon particles in the cathodes results in improved performance of the lithium ion batteries.