Abstract: A measurement system of a device under test (DUT) includes a reference clock synthesizer configured to generate a master reference clock signal, a transmitter unit connected to the reference clock synthesizer and configured to connect to the DUT, and a measurement control system connected to the transmitter unit and configured to control the transmitter unit to generate a test signal pattern based on a first reference clock signal derived from the master reference clock signal, and generate a signal for passing through the DUT based on the test signal pattern. A receiver unit connected to the reference clock synthesizer is configured to connect to the DUT and to detect the signal and generate a digital signal based on the signal and a second reference clock signal derived from the master reference clock signal. The measurement control system is configured to provide an output signal based on the digital signal.

Abstract: An optical fiber comprises, from a center to a periphery, a fiber core of undoped silica; a cladding layer; and a coating of polyacrylate, wherein the fiber core has a radius of 5 to 7 ?m and an ellipticity of less than 1.5%, the cladding layer with an ellipticity of less than 0.4% comprises inner, intermediate, and outer cladding layers, the inner cladding layer being doped with fluorine of 5 to 12 ?m thickness, and refractive index difference to fiber core of ?0.4 to ?0.2%, the outer cladding layer being undoped quartz of 25 to 45 ?m thickness, and the coating comprises an inner coating of 25 to 40 ?m thickness, and an outer coating of 25 to 35 ?m thickness and an ellipticity of less than 2%. The optical fiber has high durability and large effective transmission area, a method and system for preparing such optical fiber are also disclosed.

Abstract: In one aspect, the disclosure relates to a process for dehydrogenating a first dehydrogenation reactant into its unsaturated counterparts. The disclosed process comprises introducing a dehydrogenation reactant to a metal oxide catalyst having dehydrogenation activity, and dehydrogenating the dehydrogenation reactant to provide its unsaturated counterpart and hydrogen; selectively combusting the hydrogen released during dehydrogenation using a lattice oxygen from the metal oxide catalyst, resulting in a reduced metal oxide catalyst and steam; re-oxidizing the reduced metal oxide catalyst by introducing a gaseous oxidant to the reduced metal oxide catalyst; and optionally re-using the re-oxidized metal oxide catalyst for catalytic conversion and combustion. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

Abstract: A tracing system for managing failures of a service provided by a distributed system, the tracing system comprising a state machine store configured to store a distributed execution state machine (DESM), wherein states of the DESM correspond to predetermined milestones of the service and transitions of the DESM correspond to one or more instructions of the service; a logging unit configured to record events of the distributed system in a log store, wherein an event indicates a state and/or a transition of the DESM; a process reconstruction subsystem configured to reconstruct a trace of the DESM from the events stored in the log store; and a linking unit configured to link logging information of the distributed system to the states.

Abstract: A method for preparing a collagen from a chromium-containing tanned leather waste is disclosed. The method includes acid dechromation, obtaining a collagen aggregate, and converting the collagen aggregate to the collagen. The method also includes a reaction in a supercritical carbon dioxide reactor.

Abstract: An optical fiber comprises, from a center to a periphery, a fiber core of undoped silica; a cladding layer; and a coating of polyacrylate, wherein the fiber core has a radius of 5 to 7 ?m and an ellipticity of less than 1.5%, the cladding layer with an ellipticity of less than 0.4% comprises inner, intermediate, and outer cladding layers, the inner cladding layer being doped with fluorine of 5 to 12 ?m thickness, and refractive index difference to fiber core of ?0.4 to ?0.2%, the outer cladding layer being undoped quartz of 25 to 45 ?m thickness, and the coating comprises an inner coating of 25 to 40 ?m thickness, and an outer coating of 25 to 35 ?m thickness and an ellipticity of less than 2%. The optical fiber has high durability and large effective transmission area, a method and system for preparing such optical fiber are also disclosed.

Abstract: A fastening structure of a detachable door including at least one door and a fastener is provided. The fastener includes a fixing portion, a locking portion and a manual operation portion. The fixing portion is used to fix the fastener on at least one door. The locking portion is used to lock the at least one door onto a housing or unlock the at least one door from the housing. The manual operation portion is used to facilitate a user to move the at least one door under an installed state.

Abstract: A server system capable of supporting a plurality of storage devices includes a rack, a server kit and a server slide rail. The server kit includes a holder and frame. The holder has a first zone and a second zone with different widths. The frame whereinside the storage devices are slidably assembled is disposed on the first zone. The server slide rail includes a rail supporting component, an external rail component and an internal rail component. The rail supporting component is disposed on the rack, and has a first part and a second part with different lengths. The external rail component is disposed on the second part and does not overlap the first part. The internal rail component is disposed on the second part and slidably assembled with the external rail component.

Abstract: A housing module having a circuit board quick-assembling function is applied to an electronic device with a circuit board having a specific height. The housing module includes a housing, an spacer and two pivoting components. The housing includes a substrate and several lateral boards. The spacer includes a main body, two pivoting portions and a locking portion. The pivoting portions are disposed on corresponding sides of the main body, the locking portion stretches from a lower side of the main body and is fixed on the circuit board via an external fixing component. The pivoting portions pass through the lateral boards and are connected to the pivoting portions. While the circuit board slides relative to the substrate to push the spacer, the main body is rotated inside the housing via the pivoting portions to lift the lower side.

Abstract: A server includes a case and function modules. The case includes a frame, a first upright partition and a second upright partition. The frame has an internal space and an opening. The opening corresponds to the internal space. The first upright partition and the second upright partition jointly define a first accommodating portion, a second accommodating portion and a third accommodating portion in the internal space. Each of the function modules is a first function module, a second function module or a third function module. A width of the first function module is half of the width of the second accommodating portion. The width of the first function module, a width of the second function module and a width of the third function module have a ratio of 1:2:4.

Abstract: A housing module having a circuit board quick-assembling function is applied to an electronic device with a circuit board having a specific height. The housing module includes a housing, an spacer and two pivoting components. The housing includes a substrate and several lateral boards. The spacer includes a main body, two pivoting portions and a locking portion. The pivoting portions are disposed on corresponding sides of the main body, the locking portion stretches from a lower side of the main body and is fixed on the circuit board via an external fixing component. The pivoting portions pass through the lateral boards and are connected to the pivoting portions. While the circuit board slides relative to the substrate to push the spacer, the main body is rotated inside the housing via the pivoting portions to lift the lower side.

Abstract: A light guiding structure includes a resilient base and a plurality of light guiding columns. A plurality of through holes is separately formed on the resilient base. The plurality of light guiding columns resiliently engages with the plurality of through holes. Each of a plurality of light emitting components is disposed on an end of each of the plurality of the light guiding columns. The light guiding structure utilizes the plurality of light guiding columns for guiding the light transmitted from the plurality of light emitting components and further utilizes the resilient base for allowing the light transmitted from one of the plurality of light emitting components to pass through the corresponding light guiding column only. Therefore, the light transmitted from the plurality of light emitting components can be guided to a correct position, which effectively reduces human misjudgment.

Abstract: A housing module having a circuit board quick-assembling function is applied to an electronic device with a circuit board having a specific height. The housing module includes a housing, an spacer and two pivoting components. The housing includes a substrate and several lateral boards. The spacer includes a main body, two pivoting portions and a locking portion. The pivoting portions are disposed on corresponding sides of the main body, the locking portion stretches from a lower side of the main body and is fixed on the circuit board via an external fixing component. The pivoting portions pass through the lateral boards and are connected to the pivoting portions. While the circuit board slides relative to the substrate to push the spacer, the main body is rotated inside the housing via the pivoting portions to lift the lower side.

Abstract: An electronic module includes a base, a carrying structure, an electronic component and a cable. The carrying structure includes a carrying portion and a cable arranging portion. The carrying portion is slidably disposed in the base, the cable arranging portion is connected to the carrying portion, and at least a part of the cable arranging portion is adapted to be bent. The electronic component is carried on the carrying portion. The cable is connected between the electronic component and the base and is position-limited by the cable arranging portion. When the carrying portion at least partially slides out of the base, the cable is deformed with the cable arranging portion. In addition, an electronic apparatus having the electronic module is also provided.

Abstract: A battery accommodating module is used for accommodating a battery. The battery accommodating module includes a battery case and a latch member. The battery case has an accommodating space and a side of the battery case has two pivot holes and at least one first restraining portion. The latch member has two pivot portions and at least one second restraining portion, wherein the pivot portions are pivotally connected to the pivot holes, such that the latch member can rotate with respect to the battery case between a lock position and an unlock position. When the latch member is located at the unlock position, the first restraining portion keeps the second restraining portion at a first side of the first restraining portion. When the latch member is located at the lock position, the first restraining portion keeps the second restraining portion at a second side of the first restraining portion.

Abstract: A housing module having a circuit board quick-assembling function is applied to an electronic device with a circuit board having a specific height. The housing module includes a housing, an spacer and two pivoting components. The housing includes a substrate and several lateral boards. The spacer includes a main body, two pivoting portions and a locking portion. The pivoting portions are disposed on corresponding sides of the main body, the locking portion stretches from a lower side of the main body and is fixed on the circuit board via an external fixing component. The pivoting portions pass through the lateral boards and are connected to the pivoting portions. While the circuit board slides relative to the substrate to push the spacer, the main body is rotated inside the housing via the pivoting portions to lift the lower side.

Abstract: A server includes a case and function modules. The case includes a frame, a first upright partition and a second upright partition. The frame has an internal space and an opening. The opening corresponds to the internal space. The first upright partition and the second upright partition jointly define a first accommodating portion, a second accommodating portion and a third accommodating portion in the internal space. Each of the function modules is a first function module, a second function module or a third function module. A width of the first function module is half of the width of the second accommodating portion. The width of the first function module, a width of the second function module and a width of the third function module have a ratio of 1:2:4.

Abstract: A light guiding structure includes a resilient base and a plurality of light guiding columns. A plurality of through holes is separately formed on the resilient base. The plurality of light guiding columns resiliently engages with the plurality of through holes. Each of a plurality of light emitting components is disposed on an end of each of the plurality of the light guiding columns. The light guiding structure utilizes the plurality of light guiding columns for guiding the light transmitted from the plurality of light emitting components and further utilizes the resilient base for allowing the light transmitted from one of the plurality of light emitting components to pass through the corresponding light guiding column only. Therefore, the light transmitted from the plurality of light emitting components can be guided to a correct position, which effectively reduces human misjudgment.

Abstract: An electronic module includes a base, a carrying structure, an electronic component and a cable. The carrying structure includes a carrying portion and a cable arranging portion. The carrying portion is slidably disposed in the base, the cable arranging portion is connected to the carrying portion, and at least a part of the cable arranging portion is adapted to be bent. The electronic component is carried on the carrying portion. The cable is connected between the electronic component and the base and is position-limited by the cable arranging portion. When the carrying portion at least partially slides out of the base, the cable is deformed with the cable arranging portion. In addition, an electronic apparatus having the electronic module is also provided.

Abstract: A detachable fixing mechanism and a related electronic device can be used to fix an object on a bracket. The detachable fixing mechanism includes a positioning pin and an actuating component. The positioning pin is disposed on the bracket, and includes a supporter whereon an annular sunken slot is formed. The supporter can pierce through an opening on the object. The actuating component includes a constraining slab portion and a contacting slab portion. The constraining slab portion includes a first engaging structure engaged with the annular sunken slot to constrain a movement between the positioning pin and the actuating component. The contacting slab portion flexibly bends from the constraining slab portion. The contacting slab portion includes a second engaging structure connected to the first engaging structure and slidably disposed on the supporter. The contacting slab portion can move relative to the supporter to press the object on the bracket.