Abstract: A circuit board has an electrical circuit and a connector that is attached to the circuit board. The connector has metal contacts. A housing of the connector has an embedded reference metal layer that is disposed under a single-ended metal contact or differential metal contacts. The reference metal layer sets the impedance of the single-ended metal contact or the differential metal contacts.

Abstract: A circuit board has an edge connector with signal traces. The signal traces are formed on a dielectric layer of the circuit board. A reference trace is formed within the dielectric layer or on another surface of the dielectric layer. Parameters of the reference trace are adjusted to set an impedance of a single-ended signal trace or a differential impedance of two adjacent signal traces.

Abstract: A circuit board has an edge connector with signal traces. The signal traces are formed on a dielectric layer of the circuit board. A reference trace is formed within the dielectric layer or on another surface of the dielectric layer. Parameters of the reference trace are adjusted to set an impedance of a single-ended signal trace or a differential impedance of two adjacent signal traces.

Abstract: A circuit board has an electrical circuit and a connector that is attached to the circuit board. The connector has metal contacts. A housing of the connector has an embedded reference metal layer that is disposed under a single-ended metal contact or differential metal contacts. The reference metal layer sets the impedance of the single-ended metal contact or the differential metal contacts.

Abstract: A circuit board has an edge connector with signal traces. The signal traces are formed on a dielectric layer of the circuit board. A reference trace is formed within the dielectric layer or on another surface of the dielectric layer. Parameters of the reference trace are adjusted to set an impedance of a single-ended signal trace or a differential impedance of two adjacent signal traces.

Abstract: A circuit board has an edge connector with signal traces. The signal traces are formed on a dielectric layer of the circuit board. A reference trace is formed within the dielectric layer or on another surface of the dielectric layer. Parameters of the reference trace are adjusted to set an impedance of a single-ended signal trace or a differential impedance of two adjacent signal traces.

Abstract: A vehicle alarm system includes at least one alarm transmitting device and at least one alarm receiving device. Each alarm transmitting device is disposed in at least one first vehicle. The alarm transmitting device includes a satellite positioning system. The alarm transmitting device of the first vehicle generates an alarm signal and wirelessly transmits an alarm signal. The alarm signal includes a destination signal and a vehicle coordinate signal. The satellite positioning system generates the vehicle coordinate signal. The destination signal includes a coordinate of a destination. The first vehicle moves toward the destination. Each alarm receiving device is disposed in a second vehicle. The alarm receiving device of the second vehicle receives the alarm signal wirelessly. The alarm receiving device generates an alert signal according to the alarm signal.

Abstract: A calibration method for compensating a home position of a 3D printer is disclosed. According to a movement position of a movable mechanism of the 3D printer, a control voltage is provided to a microcontroller. The calibration method includes steps as follows. The movable mechanism moves in a home direction. It is to determine whether the microcontroller receives a first logic level signal which is transited according to the corresponding control voltage. If yes, the movable mechanism moves in a direction opposite to the home direction. It is to determine whether the microcontroller receives a second logic level signal which is transited according to the corresponding control voltage. If yes, the movable mechanism moves a compensation distance corresponding to a step compensation amount in the home direction. Therefore, the calibration method is provided to reduce circuit costs, simplify designs of control circuits, and accurately calibrate the home position.

Abstract: An intermittent excitation apparatus of a 3D printer includes at least one guide, a drive rod, a movable seat, and a microcontroller. When the microcontroller controls a first motor in a non-excitation and non-rotation condition, the movable seat is fixed on the drive rod and the 3D printer performs a plane printing operation. When the microcontroller controls the first motor in an excitation and rotation condition, the movable seat moves along the drive rod. Therefore, it is to significantly reduce heat generated inside the first motor, decrease costs, and reduce the size of the 3D printer.

Abstract: Wireless access point (AP) and methods for providing wireless connectivity to wireless client are provided. According to one embodiment, a wireless AP includes a host hardware platform and a hypervisor for providing a first virtual machine where a first guest operating system (OS) is configured to run on the first virtual machine. A wireless module is configured to run on the first guest OS for managing the wireless connection to at least one wireless client. A wireless AP management console is configured to run on the wireless AP but outside the first guest OS and to manage operations of the wireless module and the first guest OS.

Abstract: The invention provides the Magnetoelectric Effect Material consisted of a single isotope, the alloy of isotopes, or the compound of isotopes. The invention applies enrichment and purification to increase the isotope abundance, to create the density of nuclear exciton by irradiation, and therefore increase the magnetoelectric effect of the crystal of single isotope, the alloy crystal of isotopes and the compound crystal of isotopes. The invention provides the manufacturing method including the selection rules of isotopes, the fabrication processes and the structure of composite materials. The invention belongs to the area of the nuclear science and the improvement of material character. The invention using the transition of entangled multiple photons to achieve the delocalized nuclear exciton. The mix of selected isotopes adjusts the decay lifetime of nuclear exciton and the irradiation efficiency to generate the nuclear exciton.

Abstract: Wireless access point (AP) and methods for providing wireless connectivity to wireless client are provided. According to one embodiment, a wireless AP includes a host hardware platform and a hypervisor for providing a first virtual machine where a first guest operating system (OS) is configured to run on the first virtual machine. A wireless module is configured to run on the first guest OS for managing the wireless connection to at least one wireless client. A wireless AP management console is configured to run on the wireless AP but outside the first guest OS and to manage operations of the wireless module and the first guest OS.

Abstract: The present disclosure is related generally to a method for prevention and/or treatment of infections, e.g., respiratory infections, in a subject before or after the onset of a disease state associated with the infection.

Abstract: The present invention provides a compound comprising a helminth-derived glycan and/or glycoconjugate thereof (e.g., a compound comprising a Lewisx antigen (e.g., LNFPIII), a non-Lewisx antigen (e.g., LNnT, LDN, and LDN derivatives), or a mixture of Lewisx and non-Lewisx antigens (e.g., SEA)), useful as a therapeutic compound for treating or preventing diseases associated with fat accumulation in the liver. The compounds of the invention are useful for treating or preventing the development of a fatty liver disease in a subject that has the disease or is at risk of developing the disease, and inhibiting lipogenesis in hepatocytes. The invention also provides methods of regulating the Erk-c-fos/AP-1-FXR? signalling pathway by administering a compound comprising a helminth-derived glycan and/or glycoconjugate thereof to a subject with a fatty liver disease, or contacting a hepatocyte with a compound comprising a helminth-derived glycan and/or glycoconjugate thereof.

Abstract: A printed circuit board module includes a first printed circuit board defining a plurality of front conductive pads formed on a top surface thereof and arranged along a transversal direction, and a second printed circuit board located on and welded to the first printed circuit board, the second printed board defining a plurality of first contacts formed on a top surface thereof for mating with a complementary connector.

Abstract: A terminal comprises an upper arm having a top surface for a mating area; a lower arm paralleled with the upper arm and having a bottom surface soldering area; and a connecting arm connected with the upper arm and the lower arm.