Abstract: A ball screw capable of thermal dissipation is formed of a screw rod, a screw nut, and a plurality of balls mounted between the screw rod and the screw nut. The screw nut includes a mounting surface. A thermoelectric cooler is mounted to the screw nut and includes a heat-absorptive surface and a heat-dissipative surface. The heat-absorptive surface is adhered to the mounting surface. Accordingly, the ball screw can cool the heat down and is structurally simple and the whole weight is not increased due to the thermoelectric cooler.

Abstract: An operational transconductance amplifier for connection with multiple input voltage sources includes a resistance simulation unit, two current cancellation units, a first differential output unit, two current division units, and a second differential output unit. The resistance simulation unit is to simulate resistance. The two current cancellation units are to receive and convert the voltage of the input voltage sources into two first currents. The two first currents flow to two first output ends of the first differential output unit, respectively. The two current division units are to receive and convert the voltage of the input voltage sources into two second currents. The two second currents flow to two second output ends of the two second differential output units, respectively, and include the same potential as the two first currents.

Abstract: A color degradation compensation method is provided. The color degradation compensation method includes the steps as follows. Two images are captured by an image capturing device, wherein the two images have an overlapped area. A calculating procedure is constructed. At least one position in the overlapped area is selected and color values of a plurality of points in the position on each of the two images are read, wherein the points of each image are corresponded to the same position in the overlapped area. A ratio of the two color values is calculated. A degradation standard deviation of the two color values is calculated by the calculating procedure. The color values of the two images are calibrated to compensated color values through the calculating procedure in accordance with the degradation standard deviation.

Abstract: A ball screw is formed of a screw rod, two screw nuts, a link, a plurality of balls, and at least two parallelism sensors. The screw nuts are sleeved onto the screw rod and are connected with each other via a link to define a spiral path therebetween. The spiral path is linked with an internal circulatory passage of each screw nut for receiving a plurality of balls. The two parallelism sensors are oppositely mounted between the two screw nuts and surround the screw rod for sensing the preload between the two screw nuts to figure out whether the parallelism of the screw rod after the assembly is deviated or not. In this way, monitoring the voltage value outputted from the parallelism sensors can monitor the parallelism of the screw rod in real time after the assembly.

Abstract: A ball screw capable of sensing a torque in real time includes a screw rod, a screw nut sleeved onto the screw rod, a plurality of balls mounted between the screw rod and the screw nut, and a torque sensor haying a first fastening portion and a second fastening portion. The first fastening portion is fixed to a working bench and the second fastening portion is fixed to the screw nut, so the torque sensor can sense how much the torque is while the screw out is driving a working bench to move. In light of this structure, monitoring the voltage value outputted by the torque sensor can sense the torque generated while the working screw rod is working.

Abstract: An energy-based oriented switching mode power supply includes a bi-directional converter having an energy input and a load output, and an energy based pulsed generator connected between the energy input and the load output for outputting a gate voltage signal controlling how much energy is supplied from the energy input. The energy based pulsed generator receives a clock signal and outputs the gate voltage signal according to the load output of the bi-directional converter when the clock signal is at a high level. Accordingly, the switching mode power supply achieves a hybrid of PWM and PFM, depending on the energy demand of the load output, for a fast transient response and a small voltage ripple whilst improving power efficiency over a wide load range.

Abstract: A springless voice coil actuator is provided. The springless voice coil includes a base, a coil, a guiding rod, a slidable base, a main magnetic component and a balance magnetic component. The coil is disposed on the base. The guiding rod is disposed on the base. The slidable base is for sliding along the guiding rod to a predetermined direction. The main magnetic component is connected to the slidable base. The balance magnetic component is coupled with the main magnetic component for generating a magnetic induction.

Abstract: A band saw machine includes a working bench, a driving wheel mounted to the working bench, a driven wheel mounted to the working bench, and a band saw running on the driving and driven wheels. A storage member and a hydraulic cylinder connected with the storage member are mounted to the working bench. The hydraulic cylinder includes a piston rod for pushing against the driven wheel to make the driven wheel tighten the band saw while moving relative to the driving wheel. A force sensor is mounted between the piston rod and the driven wheel for sensing the tension of the band saw and emitting a sensing signal to a control system. In this way, the control system can receive the sensing signal and controllably making the storage member supply oil to the cylinder body according to the sensing signal to force the piston rod to elongate.

Abstract: A dynamic voltage scaling system having time borrowing and local boosting capability, including: a time borrowing circuit and a local boost circuit. The time borrowing circuit connected electrically between a primary stage logic circuit and a secondary stage logic circuit is activated by an all-domain clock signal, and then generates an output data to the secondary stage logic circuit based on input data to the primary stage logic circuit. The local boost circuit is connected to a low working voltage line, when input data of the time borrowing circuit lags behind a positive level of said all-domain clock signal, the time borrowing circuit delays fetching data by a flip flop and changes state to produce a warning signal, so that the local boost circuit disconnects its connection with said low working voltage line, and is connected electrically to a high working voltage line.

Abstract: A single-inductor multi-output (SIMO) conversion device for enlarging load range is disclosed. The SIMO conversion device comprises a power stage comprising a first switch and a second switch and receiving a direct-current (DC) current. A DC voltage source inputs the DC current to an inductor by timing of the first and second switches. Each control output circuit has a third switch connected with the inductor in series to receive an immediate current. The control output circuit sends out an output voltage selectively by the third switch. A control stage circuit receives a plurality of feedback voltage signals and selectively controls the order of adjusting energy of the output voltages by order control signals. The present invention uses a current sensing circuit to obtain the immediate current and switches control signals to establish the best order thereof according to different loads.

Abstract: A fast speed computer system power-on & power-off method, that is used to reduce an amount of main memory transferred and stored from a main memory into a second storage device, thus speeding up a speed of re-activation of a computer system from a hibernation state into a full speed operation state. Said fast speed computer system power-on & power-off method is applicable to various types of computer systems, and can be used to write in and load back data in cooperation with a random access processing technology. In addition, said method can be used to reduce extent of data loss and damage of said computer system due to a sudden power outage of said computer system.

Abstract: The present invention relates to a biochip with a piezoelectric element for ultrasonic standing wave generation. The biochip comprises an upper module, a lower module, and a chemical sensor. The piezoelectric element is integrated within the upper module of the biochip. The piezoelectric element can generate ultrasonic standing waves (USW) in the reaction chamber of the biochip by manipulating the operation frequency so the particles being detected can effectively move toward the QCM sensing surface. Hence, the biochip significantly increases the sensitivity and reduces the time required to reach equilibrium when undergoing USW excitation. The biochip of the present invention can be broadly applied to the bio-detection in medical and pharmaceutical fields.

Abstract: A method for estimating blur degree of image and a method for evaluating image quality are revealed. First, an input image is transmitted to an image processing device for producing a synthesized blur image including a nonlinear image sensing function according to a pixel intensity distribution parameter of the input image. Next, the image processing device matches the pixel intensity distribution according to the input image and the synthesized blur image for producing a blur degree parameter; By the way, the image processing device further estimating an estimated blur result according to the blur degree parameter. The method for estimating blur degree of image can be further applied to estimate blur distribution for a plurality of regions of interest of a plurality of input images. Thereby, the blur distribution of the input images can be estimated, and thus further evaluating the image quality of the plurality of input images.

Abstract: An operational transconductance amplifier for connection with multiple input voltage sources includes a resistance simulation unit, two current cancellation units, a first differential output unit, two current division units, and a second differential output unit. The resistance simulation unit is to simulate resistance. The two current cancellation units are to receive and convert the voltage of the input voltage sources into two first currents. The two first currents flow to two first output ends of the first differential output unit, respectively. The two current division units are to receive and convert the voltage of the input voltage sources into two second currents. The two second currents flow to two second output ends of the two second differential output units, respectively, and include the same potential as the two first currents.

Abstract: A measurement method for environment depth and the image extraction device thereof is revealed. First, rotate an image extraction unit and extract a plurality of images using an image extraction device according to different viewing angles of a target object. Then, use disparity information of the plurality of images and an image parameter of the image extraction unit to give a plurality pieces of depth-of-field information, which are further used for giving environment depth information. The image extraction device has an image extraction unit and a rotating member. The rotating member is connected with the base; the rotating member is connected to the image extraction unit, which is located on one side of the rotating member. The plurality of images with different viewing angles are extracted to the image extraction unit as the rotating member rotates about a rotating center to different image extracting locations.

Abstract: An analytical method of post-translational modifications in hemoglobin is disclosed. The analytical method comprises the steps of providing a blood comprising the hemoglobin with post-translational modification of nitration, nitrosylation, or oxidation; performing an extraction process to the blood by an organic solvent; quantifying the hemoglobin by a fluorescent spectrometry; hydrolyzing the hemoglobin into a plurality of peptides by an enzyme; and using a nanoflow liquid chromatography-nanospray ionization tandem mass spectrometry to characterize and quantify the post-translational modifications of the hemoglobin.

Abstract: A low-complexity method of converting 2D images/videos into 3D ones includes the steps of identifying whether each pixel in one of the frames is an edge feature point; locating at least two vanishing lines in the frame according to the edge feature point; categorizing the frame into the one of close-up photographic feature, of landscape feature, and of vanishing-area feature; if the frame is identified to have the vanishing-area feature or the landscape feature to generate a GDM; and apply a modificatory procedure to the GDM to generate a final depth information map; if the frame is identified to have the close-up photographic feature, distinguish between a foreground object and a background information in the frame and define the depth of field to generate the final depth information map.

Abstract: A high-frequency chip antenna measurement system includes a platform; two piers; an arching; a stepper motor; an indication and fastening assembly having a source antenna holder and an illuminant indicator; a carrier stage; a chip antenna carrier having a support member and two sloping posts extending upward and outward from a top end of the support member, two chip antenna carrier benches being mounted to top ends of the two sloping posts respectively; a probe carrier having a support plate directionally variably fixed to the carrier substrate, two props fixed to the support member and parallel to each other and extending outward and upward slantingways, and a probe carrier bench mounted to top ends of the two props for bearing a probe; and a bridging member having two ends mounted to the chip antenna carrier benches.

Abstract: A method for estimating image conversion parameters is revealed. Firstly, using an image capturing unit to capture at least one captured image of an object to an image processing unit for calculation. The image processing unit can take linear brightness change of single captured image to estimate the image conversion parameters, also can take comparison of linear and non-linear images to estimate the image conversion parameters, further can take the difference of exposure quantities to estimate the image conversion parameters. Therefore, the estimation of the image conversion parameters can be finished well and easily.

Abstract: A mercaptoalkylsilatrane derivative having protecting group and a method of manufacturing the same. The mercaptoalkylsilatrane derivative includes: mercaptoalkylsilatrane compound having a mercapto group; a protecting group bonding to sulfur of the mercapto group, wherein the protecting group is used to avoid the chemical reaction of the mercapto group with reactive chemical species, e.g., oxygen, ketone, and aldehyde, etc. Besides, the manufacturing method thereof includes the steps of: providing silane compound having the mercapto group; bonding the protecting group to the mercapto group of the silane compound; performing the chemical reaction of triethanolamine with the silane compound having the protecting group for manufacturing the mercaptoalkylsilatrane derivative having the protecting group.