Abstract: A method for determining a consistency coefficient of a power-law cement grout includes: determining a water-cement ratio of the power-law cement grout; according to engineering practice requirements, determining a time required to determine the consistency coefficient of the power-law cement grout; and obtaining the consistency coefficient of the power-law cement grout. The method is accurate and reliable, requires less calculation, etc.; and has very high practical value and popularization value in environmental protection and ecological restoration.

Abstract: An electronic device with display characteristics which reduce long-time damage to user's eyes has a verifiable eye protection system. A verified verification information received from user causes the device to acquire surrounding brightness value detect by an illumination sensor and determine whether the brightness value is in a range suggesting too-low or over bright light. The display screen of the electronic device is turned off when the brightness value is within one of certain brightness ranges. A method for such eye protection is also provided.

Abstract: A physical button mechanism for an electronic device includes a casing and a button mechanism therein mounted. The button mechanism includes a connection element, at least one button, a bracket, and at least one adjusting element. The at least one button is mounted on a side of the connection element. The bracket is arranged on another side of the connection element. The at least one adjusting element is mounted on the bracket to be in contact with the connection element. The adjusting element and the connection element are adjustable to allow for sloppiness and spring fatigue over long usage, by adjusting preload sprung pressure of the button mechanism.

Abstract: An electronic device with display characteristics which reduce long-time damage to user's eyes has a verifiable eye protection system. A verified verification information received from user causes the device to acquire surrounding brightness value detect by an illumination sensor and determine whether the brightness value is in a range suggesting too-low or over bright light. The display screen of the electronic device is turned off when the brightness value is within one of certain brightness ranges. A method for such eye protection is also provided.

Abstract: An electronic device includes a case and a plug. The case has an end wall to which the plug can be firmly held by magnetism. The plug matches output and input ports arranged on the end wall and includes a power transmission adapter, a ground adapter, a video transmission adapter, an audio transmission adapter, and a data transmission adapter, for transmitting power, grounding, transmitting video, audio, and data to the electronic device. A connector and an electronic device assembly are also provided.

Abstract: A device with function of automatically shutting down when dropped acquires an acceleration value detected by an acceleration sensor, and determines whether the acceleration value is more than a preset acceleration value. A timing unit is controlled to count time when the acceleration value is more than the preset acceleration value, and a travel distance of the device is calculated according to the acceleration value and the time period of the falling. If the travel distance of the device is more than a preset distance, a power management system is controlled to shut down a power supply to the device. A method for such function and system is also provided.

Abstract: A component holder for a component includes a bracket and two fixing members. The bracket includes a bottom plate and a frame including a number of first side plates and two second side plates perpendicularly to each other. The first side plates and the second side plates are attached to the bottom plate to form a receiving space for receiving the component. The two fixing members are coupled to the two second side plates. Each fixing member includes an elastic board extending into the receiving space and spaced from the corresponding second side plate, to press against the component in a direction perpendicular to the corresponding second side plate.

Abstract: A bicycle includes a stem and a supporting bracket for supporting an electronic product. The supporting bracket includes a mounting apparatus mounted on the stem, a tray for receiving the electronic product, and an adjusting apparatus connected between the mounting apparatus and the tray. The adjusting apparatus includes a positioning pipe mounted to the mounting apparatus and a sliding pole slidably connected to the positioning pipe. The tray is rotatably connected to a top end of the sliding pole.

Abstract: A touch input electronic device, an unlocking system and method are provided. An unlocking interface is displayed on a touch screen of the touch input electronic device. The interface can include a slidable unlocking icon and a number of icons. Each icon displays a content item. Each time when a user slides the unlocking icon to one of the icon, the content item in the icon is determined, and an arrangement of the icons is changed. After the user input is finished, an unlock password is determined according to an input sequence of the content items. The touch screen is unlocked when the unlock password matches a per-stored password.

Abstract: A housing with latching mechanism includes a base, a cover, a number of latching members, and a plurality of resilient elements. The base includes a bottom plate and a sidewall protruding from the bottom plate. The cover includes a number of tabs each defining an engaging hole. The latching members are slidably connected to the sidewall of the base and each include a latching portion. The latching members are slidable between a first position where the latching portion is latchingly received in the engaging hole of the cover, thereby locking the cover to the base, and a second position where the latching portion disengages from the engaging hole of the cover, allowing the cover to be detached from the base. The resilient elements are used to apply a pushing force to the latching members for driving the latching members to move to the first position.

Abstract: A keyboard base includes a frame, a key panel, and a latching assembly having a stop plate, a sliding block and an elastic member. The frame includes a housing defined therein, a hook formed on a bottom of the housing, and a blind slot defined on a side wall of the housing. The key panel is received in the housing of the frame and includes a clasp snapped in the blind slot of the housing. The stop plate is perpendicularly mounted on the key panel facing the hook of the frame. The sliding block is slidably positioned between the stop plate and the hook of the frame. The elastic member is positioned between the sliding block and the stop plate for keeping the sliding block retaining on the hook of the frame to detachably fasten the key panel and the frame.

Abstract: A switch apparatus and an electronic device using the switch apparatus are provided. The switch apparatus includes a first transmitting element, a second transmitting element, an elastic element, and a linkage pole located in the interior space of the electronic device and a slidable actuator mounted above an aperture defined in the electronic device. The slidable actuator is movable along the aperture between a first position and a second position. The first transmitting element is elastically supported by the elastic element and electrically coupled to an electronic board of the electronic device. The second transmitting element is electrically coupled to batteries received in the electronic device. The movement of the slidable actuator from the first position to the second position pushes the linkage pole, causing the linkage pole to move the first transmitting element and separate the first transmitting element from the second transmitting element.

Abstract: A keyboard base includes a frame, a key panel, and a latching assembly having a stop plate, a sliding block and an elastic member. The frame includes a housing defined therein, a hook formed on a bottom of the housing, and a blind slot defined on a side wall of the housing. The key panel is received in the housing of the frame and includes a clasp snapped in the blind slot of the housing. The stop plate is perpendicularly mounted on the key panel facing the hook of the frame. The sliding block is slidably positioned between the stop plate and the hook of the frame. The elastic member is positioned between the sliding block and the stop plate for keeping the sliding block retaining on the hook of the frame to detachably fasten the key panel and the frame.

Abstract: An electrical connector includes a printed circuit board, a plug fixedly and electrically connected to the printed circuit board, an electromagnetic shielding cover configured for encompassing the printed circuit board, a reinforced frame configured for framing the plug and the electromagnetic shielding cover to the circuit board and, a housing configured for housing the printed circuit board, the plug, the electromagnetic shielding cover and the reinforced frame therein.

Abstract: A switch apparatus and an electronic device using the switch apparatus are provided. The switch apparatus includes a first transmitting element, a second transmitting element, an elastic element, and a linkage pole located in the interior space of the electronic device and a slidable actuator mounted above an aperture defined in the electronic device. The slidable actuator is movable along the aperture between a first position and a second position. The first transmitting element is elastically supported by the elastic element and electrically coupled to an electronic board of the electronic device. The second transmitting element is electrically coupled to batteries received in the electronic device. The movement of the slidable actuator from the first position to the second position pushes the linkage pole, causing the linkage pole to move the first transmitting element and separate the first transmitting element from the second transmitting element.

Abstract: An electrical connector includes a printed circuit board, a plug fixedly and electrically connected to the printed circuit board, an electromagnetic shielding cover configured for encompassing the printed circuit board, a reinforced frame configured for framing the plug and the electromagnetic shielding cover to the circuit board and, a housing configured for housing the printed circuit board, the plug, the electromagnetic shielding cover and the reinforced frame therein.

Abstract: A notebook computer and an associated support stand are provided. The notebook computer includes a main body, a detachable display, and a hinge assembly. The support stand defines a hinge assembly thereof. The hinge assembly includes two hinges, two guiding portions, and an electrical connector. The hinges are fixed on the main body or the support stand. The guiding portions are connected with the hinges. The detachable display defines two openings for receiving the two guiding portions, and includes an electrical connector for detachable connecting with the electrical connector of the hinge assembly. The detachable display has locking mechanisms, which can fix the position of the display after it has been attached to the main body or the support stand. Employing the above-mentioned structure, the detachable display can be easily detached from the main body of the notebook computer and conveniently used as a desktop with the support stand.