Abstract: An electronic device including a signal processing circuit, an acceleration sensor, and an edge sensor is provided. The electronic device has a device body. The signal processing circuit operates in a sleep mode. The acceleration sensor senses an acceleration variation of the device body to generate an acceleration sensing signal. The acceleration sensor determines whether the acceleration sensing signal is continuously lower than an acceleration threshold for a preset length of time to wake up the signal processing circuit. When the acceleration sensor wakes up the signal processing circuit, the signal processor enables the edge sensor. The edge sensor senses a deformation variation of the device body to generate at least one deformation sensing signal. The signal processing circuit analyzes the deformation sensing signal to determine whether a drop event of the device body occurs. In addition, a drop warning method is also provided.

Abstract: A method for forming a wrench end includes the steps of preparing a flat blank, initially press-forging at least one end of the blank to form a head with a wrench-shaped part and a hole on the blank, bending the head to form a curved section and a stretched section which are bent at different angles, and shaping the head by holding the curved section and the stretched section with a gripping apparatus and then pressing the hole of the head with a punch in order to subject the two sections to a squeezing force whereby the sections can have a denser interior structure and facilitate a final shaping of the head. The method facilitates a quick shaping of the wrench end and increases the efficiency of forming a wrench product.

Abstract: A method for forming a wrench end includes the steps of preparing a flat blank, initially press-forging at least one end of the blank to form a head with a wrench-shaped part and a hole on the blank, bending the head to form a curved section and a stretched section which are bent at different angles, and shaping the head by holding the curved section and the stretched section with a gripping apparatus and then pressing the hole of the head with a punch in order to subject the two sections to a squeezing force whereby the sections can have a denser interior structure and facilitate a final shaping of the head. The method facilitates a quick shaping of the wrench end and increases the efficiency of forming a wrench product.

Abstract: A method of making a spanner comprises the steps of preparing a flat metal blank, forging and pressing a part of the metal blank to form a head and a shank whose width is smaller than a width of the head, pressing the head to form a first arch-shaped part, pressing a shank end of the shank to expand the shank end and then form a second arch-shaped part, and pressing the head and the shank end again to remove redundant scrap projecting from the first arch-shaped part and the second arch-shaped part and also punch finished holes in the head and the shank end respectively, thereby completing the finished spanner. Accordingly, the method reduces the waste of the material and the processing cost, decreases the use frequency of high-cost machines and promotes the processing efficiency by using the flat metal blank.

Abstract: A method of making a spanner comprises the steps of preparing a flat metal blank, forging and pressing a part of the metal blank to form a head and a shank whose width is smaller than a width of the head, pressing the head to form a first arch-shaped part, pressing a shank end of the shank to expand the shank end and thence form a second arch-shaped part, and pressing the head and the shank end again to remove redundant scrap projecting from the first arch-shaped part and the second arch-shaped part and also punch finished holes in the head and the shank end respectively, thereby completing the finished spanner. Accordingly, the method reduces the waste of the material and the processing cost, decreases the use frequency of high-cost machines and promotes the processing efficiency by using the flat metal blank.

Abstract: A carrier recovery device and a carrier recovery method are provided. The device includes a phase detection module, a computation module, a phase angle adjustment module, a loop filter, and a conversion module. The phase detection module receives an IF signal, and detects a sine and a cosine signals corresponding to the IF signal. The computation module receives the sine and the cosine signals, and computes a phase angle between the sine and the cosine signals. The phase angle adjustment module adjusts the phase angle according to one of the sine and the cosine signals and a threshold. The loop filter generates a frequency offset angle according to the phase angle. The conversion module generates a sine and a cosine parameters according to the frequency offset angle, and transfers the sine and the cosine parameters to the phase detection module.

Abstract: Phase-matched high-order harmonic generation of soft and hard X-rays is accomplished using infrared driving lasers in a high-pressure non-linear medium. The pressure of the non-linear medium is increased to multi-atmospheres and a mid-IR (or higher) laser device provides the driving pulse. Based on this scaling, also a general method for global optimization of the flux of phase-matched high-order harmonic generation at a desired wavelength is designed.

Abstract: A handgrip includes a tubular grip body having at least two angularly spaced-apart resilient clamp portions projecting outwardly and axially from an annular end thereof, a substantially U-shaped rod member having a bight portion, and non-threaded head and threaded end portions, and a sleeve ring sleeved around the resilient clamp portions and having first and second curved retaining grooves receiving respectively the resilient clamp portions, a head-receiving groove section receiving the non-threaded head portion, and a guide groove section receiving the threaded end portion. A nut member is disposed outwardly of the guide groove section, and engages threadedly the threaded end portion. The nut member pulls the threaded end portion when tightened so that the bight portion pushes one of the resilient clamp portions toward the other resilient clamp portion.

Abstract: A road cone includes: a hollow truncated conical body having a top open end defining a top opening; a power supplying unit mounted detachably in the truncated conical body and accessible through the top opening; a cap mounted on the top open end of the truncated conical body and covering the top opening of the truncated conical body; and a light emitting unit mounted in the truncated conical body and connected electrically to the power supplying unit so as to be powered by the power supplying unit to generate light inside the truncated conical body.

Abstract: Phase-matched high-order harmonic generation of soft and hard X-rays is accomplished using infrared driving lasers in a high-pressure non-linear medium. The pressure of the non-linear medium is increased to multi-atmospheres and a mid-IR (or higher) laser device provides the driving pulse. Based on this scaling, also a general method for global optimization of the flux of phase-matched high-order harmonic generation at a desired wavelength is designed.

Abstract: A carrier recovery device and a carrier recovery method are provided. The device includes a phase detection module, a computation module, a phase angle adjustment module, a loop filter, and a conversion module. The phase detection module receives an IF signal, and detects a sine and a cosine signals corresponding to the IF signal. The computation module receives the sine and the cosine signals, and computes a phase angle between the sine and the cosine signals. The phase angle adjustment module adjusts the phase angle according to one of the sine and the cosine signals and a threshold. The loop filter generates a frequency offset angle according to the phase angle. The conversion module generates a sine and a cosine parameters according to the frequency offset angle, and transfers the sine and the cosine parameters to the phase detection module.

Abstract: A holder for a liquid container includes a frame body and a resilient holding ring. The frame body includes a container-holder having a substantially C-shaped surrounding wall that defines a container-receiving space and that has inner and outer surfaces, and two spaced-apart free ends. The resilient holding ring is molded over the frame body, and includes an inner lining layer covering the inner surface of the surrounding wall and extending from one of the free ends to the other one of the free ends, and a bridge portion bridging the free ends of the surrounding wall, being stretchable between the free ends, and directly connected to the inner lining layer. The bridge portion and the inner lining layer form a ring.

Abstract: A water kettle includes a kettle body having a receiving space, a cover unit, a hollow receiving member, and a filtering unit. The cover unit includes a cover body mounted on the kettle body, and a valve movable relative to the cover body for controlling flow of water from a water outlet in the cover body. The receiving member is attached to the cover body, and includes a filtering space in fluid communication with the water outlet, and a plurality of openings in fluid communication with the filtering space and the receiving space. The filtering unit is disposed within the receiving member for filtering impurities from the water flowing from the receiving space into the water outlet through the hollow receiving member.

Abstract: A luminous water bottle includes a bottle body, a lid, and a lighting assembly. The bottle body has a bottom wall, and a surrounding wall extending upwardly from a periphery of the bottom wall and cooperating with the bottom wall to define a space. The surrounding wall has an upper end opposite to the bottom wall. The lid is releasably engaged with the upper end of the surrounding wall. The lighting assembly is disposed at least partially in the space and includes a light-generating unit for generating and emitting light, and an illumination member for dispersing the light emitted by the light-generating unit.

Abstract: A horn includes a base adapted to be mounted to a bar, and a sound-generating unit. The base includes a support member and an elastic connecting member. The support member has a bottom portion adapted to be placed adjacent to the bar, a top portion extending upwardly from the bottom portion, and a hook protruding from the bottom portion. The elastic connecting member has an annular portion fittingly sleeved over the bottom portion of the support member, and a clamping portion extending from the annular portion and adapted to wrap around the bar and be releasably hooked onto the hook. The sound-generating unit includes a hollow horn body sleeved on the top portion of the support member, and a reed member disposed in the horn body and having opposite ends in fluid communication respectively with the air inside and the air outside the horn body.

Abstract: A horn includes a base adapted to be mounted to a bar, and a sound-generating unit. The base includes a support member and an elastic connecting member. The support member has a bottom portion adapted to be placed adjacent to the bar, a top portion extending upwardly from the bottom portion, and a hook protruding from the bottom portion. The elastic connecting member has an annular portion fittingly sleeved over the bottom portion of the support member, and a clamping portion extending from the annular portion and adapted to wrap around the bar and be releasably hooked onto the hook. The sound-generating unit includes a hollow horn body sleeved on the top portion of the support member, and a reed member disposed in the horn body and having opposite ends in fluid communication respectively with the air inside and the air outside the horn body.

Abstract: A luminous water bottle includes a bottle body, a lid, and a lighting assembly. The bottle body has a bottom wall, and a surrounding wall extending upwardly from a periphery of the bottom wall and cooperating with the bottom wall to define a space. The surrounding wall has an upper end opposite to the bottom wall. The lid is releasably engaged with the upper end of the surrounding wall. The lighting assembly is disposed at least partially in the space and includes a light-generating unit for generating and emitting light, and an illumination member for dispersing the light emitted by the light-generating unit.

Abstract: An insulated water bottle assembly includes an inner shell, an outer shell, and an insulation unit. The inner shell has an inner wall defining a liquid-holding space and an outer wall opposite to the inner wall. The outer shell has inner and outer surfaces. The outer shell is sleeved over the inner shell and cooperates with the inner shell to define a sealed insulation compartment therebetween. The insulation unit is disposed in the insulation compartment, and includes a first reflective layer formed on the outer wall of the inner shell, an insulative layer surrounding the first reflective layer, and a second reflective layer interposed between the inner surface of the outer shell and the insulative layer.

Abstract: A road cone includes: a hollow truncated conical body having a top open end defining a top opening; a power supplying unit mounted detachably in the truncated conical body and accessible through the top opening; a cap mounted on the top open end of the truncated conical body and covering the top opening of the truncated conical body; and a light emitting unit mounted in the truncated conical body and connected electrically to the power supplying unit so as to be powered by the power supplying unit to generate light inside the truncated conical body.

Abstract: A drinking bottle includes: a bottle body defining a chamber therein and having a top connecting portion and a bottom connecting portion that defines a bottom opening of the bottle body; a bottom cap coupled detachably to the bottom connecting portion of the bottle body for covering sealingly and uncovering the bottom opening of the bottle body; a hollow inner body disposed in the chamber of the bottle body, defining an inner space therein, and having a bottom connecting portion that defines a bottom opening of the inner body and that is coupled detachably to the bottom cap; and a sealing member coupled detachably to the bottom connecting portion of the inner body for covering sealingly and uncovering the bottom opening of the inner body.