Abstract: A separation device includes a membrane separation module (10), an adsorption module (20), and a gas intake module (30). The membrane separation module includes a first housing (110), and a membrane assembly (130) disposed in the first housing. The first housing has a first gas inlet (121), a first gas outlet (122), and a retentate gas outlet (123). The membrane module has a permeate gas outlet, the permeate gas outlet being in communication with the first gas outlet. The adsorption module has a second housing (210) and an adsorbent layer (230) disposed in it. The second housing is disposed on the first housing and has a second gas inlet (221), a second gas outlet (222), and a desorption gas outlet (223). The second gas inlet is in communication with the first gas outlet. The gas intake module has a third gas outlet (321) in communication with the first gas inlet.

Abstract: Embodiments pertain to an optical transmitter, including a thermally unregulated light emitting device and a sloped or graded passband filter. The light emitting device is configured to receive a bias current and output an optical signal within a wavelength band. The sloped or graded passband filter is configured to attenuate an output power of the optical signal in the wavelength band. The light emitting device has a maximum bias current limit, a maximum operating temperature limit, and maximum and minimum output power limits, and the sloped or graded passband filter has an insertion loss in the wavelength band that decreases as the light emitting device temperature increases and/or the optical signal wavelength increases within the wavelength band. The attenuated optical signal is within the maximum and minimum output power limits when the bias current is at or below the maximum bias current limit and the light emitting device outputs the optical signal at or below the maximum operating temperature limit.

Abstract: A separation device includes a membrane separation module (10), an adsorption module (20), and a gas intake module (30). The membrane separation module includes a first housing (110), and a membrane assembly (130) disposed in the first housing. The first housing has a first gas inlet (121), a first gas outlet (122), and a retentate gas outlet (123). The membrane module has a permeate gas outlet, the permeate gas outlet being in communication with the first gas outlet. The adsorption module has a second housing (210) and an adsorbent layer (230) disposed in it. The second housing is disposed on the first housing and has a second gas inlet (221), a second gas outlet (222), and a desorption gas outlet (223). The second gas inlet is in communication with the first gas outlet. The gas intake module has a third gas outlet (321) in communication with the first gas inlet.

Abstract: Embodiments pertain to an optical transmitter, including a thermally unregulated light emitting device and a sloped or graded passband filter. The light emitting device is configured to receive a bias current and output an optical signal within a wavelength band. The sloped or graded passband filter is configured to attenuate an output power of the optical signal in the wavelength band. The light emitting device has a maximum bias current limit, a maximum operating temperature limit, and maximum and minimum output power limits, and the sloped or graded passband filter has an insertion loss in the wavelength band that decreases as the light emitting device temperature increases and/or the optical signal wavelength increases within the wavelength band. The attenuated optical signal is within the maximum and minimum output power limits when the bias current is at or below the maximum bias current limit and the light emitting device outputs the optical signal at or below the maximum operating temperature limit.

Abstract: Optical multiplexers, optical demultiplexers, optical modules including the same, and methods of making and using the same are disclosed. The optical multiplexers include first and second structural blocks and a beam combiner. The first and second structural blocks each include at least one mirror and at least one filter, and are configured to combine a plurality of individual optical signals into a multi-channel optical signal. The beam combiner includes one or more mirrors and one or more filters, and is configured to combine the multi-channel optical signals into a further multi-channel optical output signal having the same number of channels as the multi-channel optical signals. The optical demultiplexers are structurally similar to the optical multiplexers, but provide a complementary or reverse function.

Abstract: Embodiments of the disclosure pertain to an optical or optoelectronic transceiver comprising an optical or optoelectronic receiver, an optical or optoelectronic transmitter, a plurality of electrical devices, a housing, and a heat sink having a non-planar surface. The optical or optoelectronic receiver includes a receiver optical subassembly (ROSA). The optical or optoelectronic transmitter includes a transmitter optical subassembly (TOSA). The electrical devices are configured to provide or control one or more functions of the optical or optoelectronic receiver and the optical or optoelectronic transmitter. The housing is over and/or enclosing the optical or optoelectronic receiver and the optical or optoelectronic transmitter. The housing includes a first section and a second section, and is configured to (a) be removably insertable into a cage or socket of a host device and (b) position the first section of the housing outside the cage or socket when the housing is inserted in the cage or socket.

Abstract: Optical multiplexers, optical demultiplexers, optical modules including the same, and methods of making and using the same are disclosed. The optical multiplexers include first and second structural blocks and a beam combiner. The first and second structural blocks each include at least one mirror and at least one filter, and are configured to combine a plurality of individual optical signals into a multi-channel optical signal. The beam combiner includes one or more mirrors and one or more filters, and is configured to combine the multi-channel optical signals into a further multi-channel optical output signal having the same number of channels as the multi-channel optical signals. The optical demultiplexers are structurally similar to the optical multiplexers, but provide a complementary or reverse function.

Abstract: A dividing wall column (10), comprising: a partition plate (11) arranged along an axial direction of the dividing wall column (10); a first shaft (22) arranged along a radial direction of the dividing wall column (10), and a first splitter plate (23) with an end connected to the first shaft (22), which are both placed beneath the partition plate (11), wherein the first splitter plate (23) is configured to be pivotable around the first shaft (22), so as to control distribution of a stream from below the first splitter plate (23) into spaces formed at two sides of the partition plate (11); and a second shaft (13) arranged along the radial direction of the dividing wall column (10), and a second splitter plate (20) with an end connected to the second shaft (13), which are both placed above the partition plate (11), wherein the second splitter plate (20) is configured to be pivotable around the second shaft (13), so as to control the stream from above the second liquid splitter plate (20) into the spaces formed a

Abstract: An EMI shielding device for an optical transceiver is disclosed. The EMI shielding device includes a shell with an optical and electrical interfaces al opposed ends. The shell includes a base and an upper cover. The upper cover includes a plate having at least two flanks, each having a lateral plate that extends downward. The base includes a base plate having at least two flanks, each having a base side baffle. The upper covet plate is located between the base side baffles. The lower ends or surfaces of the upper cover lateral plates have serrations thereon. A conductive gasket under the serrations contacts the base. The conductive gasket and the serrations result in reliable multipoint contact between the upper cover lateral plates and the base, thereby providing reliable electrical continuity between the upper cover and the base, and reducing electromagnetic leakage.

Abstract: An EMI shielding device for an optical transceiver is disclosed. The EMI shielding device includes a shell with an optical and electrical interfaces al opposed ends. The shell includes a base and an upper cover. The upper cover includes a plate having at least two flanks, each having a lateral plate that extends downward. The base includes a base plate having at least two flanks, each having a base side baffle. The upper covet plate is located between the base side baffles. The lower ends or surfaces of the upper cover lateral plates have serrations thereon. A conductive gasket under the serrations contacts the base. The conductive gasket and the serrations result in reliable multipoint contact between the upper cover lateral plates and the base, thereby providing reliable electrical continuity between the upper cover and the base, and reducing electromagnetic leakage.

Abstract: An optical or free space isolator, and optical or optoelectronic transmitter and methods of transmitting an optical signal and making the transmitter are disclosed. The optical/free space isolator includes a first polarizer, configured to polarize light at a first polarization angle and block light at a second polarization angle; a Faraday rotator, configured to rotate the light polarized by the first polarizer by a predetermined number of degrees; and a half waveplate in the optical/light path, having a fixed or predetermined orientation angle. The first polarizer, Faraday rotator/isolator, and half waveplate have respective polarization, rotation and orientation values that allow light to pass through the optical isolator in a first direction, and block reflected light traveling through the optical isolator along a direction opposite to the first direction.

Abstract: The present disclosure provides a reactor for at least two liquid materials, comprising an enclosed reactor housing; a feeding tube having liquid material inlets for receiving corresponding liquid materials respectively; a distribution tube communicating with the feeding tube and extending into the reactor housing, the distribution tube being provided with a plurality of distribution holes in the region thereof extending into the reactor housing; a rotating bed in form of a hollow cylinder, which is disposed in the reactor housing via a fixing mechanism, thus dividing inner cavity of the reactor housing into a central area and an outer area, the rotating bed being capable of rotating driven by a driving mechanism; and a material outlet provided in a lower portion of the reactor housing for outputting product after reaction.

Abstract: Related to is a divided-wall column (10), comprising: a partition plate (11) arranged along an axial direction of the divided-wall column (10); a first shaft (22) arranged along a radial direction of the divided-wall column (10), and a first splitter plate (23) with an end connected to the first shaft (22), which are both placed beneath the partition plate (11), wherein the first splitter plate (23) is configured to be pivotable around the first shaft (22), so as to control distribution of a stream from below the first splitter plate (23) into spaces formed at two sides of the partition plate (11); and a second shaft (13) arranged along the radial direction of the divided-wall column (10), and a second splitter plate (20) with an end connected to the second shaft (13), which are both placed above the partition plate (11), wherein the second splitter plate (20) is configured to be pivotable around the second shaft (13), so as to control the stream from above the second splitter plate (20) into the spaces forme

Abstract: A translation and teaching system for sending text messages over a telecommunication pathway sent by users in a first language received by a server, a comparison database of a second language for matching, converting the text into a second language upon making the match, a translator for converting the first text transmission into the second language if no match is made into a second transmission, a processor in the server for analyzing the conversion of the transmission for accuracy, and a data path to send the transmission to the user. The system may have a pre-processor that recognizes linguistic irregularities and modifies them to conform to the second language's pre-stored standard grammar and a human linguist platform for post verification of the translation. The system also generates learning lessons for user in language, a learning dictionary that groves with user input, and the addition of third party content for lessons.

Abstract: The present disclosure provides a reactor for at least two liquid materials, comprising an enclosed reactor housing; a feeding tube having liquid material inlets for receiving corresponding liquid materials respectively; a distribution tube communicating with the feeding tube and extending into the reactor housing, the distribution tube being provided with a plurality of distribution holes in the region thereof extending into the reactor housing; a rotating bed in form of a hollow cylinder, which is disposed in the reactor housing via a fixing mechanism, thus dividing inner cavity of the reactor housing into a central area and an outer area, the rotating bed being capable of rotating driven by a driving mechanism; and a material outlet provided in a lower portion of the reactor housing for outputting product after reaction.

Abstract: An optical and/or optoelectrical transceiver and system are disclosed that enable parallel transmission of data and management signals via an optical fiber without affecting data signal transmissions transmitted on the optical fiber. Furthermore, the present transceiver and system provide a fault diagnosis function for an optical fiber link. The transceiver and system generally comprise an interface, an intersecting transmission management unit, a driver, a management signal driving unit, an optical transmitter, an optical receiver, an amplifier, a management signal recovery unit, a management unit, and optionally, a power supply unit.

Abstract: An optical and/or optoelectrical transceiver and system are disclosed that enable parallel transmission of data and management signals via an optical fiber without affecting data signal transmissions transmitted on the optical fiber. Furthermore, the present transceiver and system provide a fault diagnosis function for an optical fiber link. The transceiver and system generally comprise an interface, an intersecting transmission management unit, a driver, a management signal driving unit, an optical transmitter, an optical receiver, an amplifier, a management signal recovery unit, a management unit, and optionally, a power supply unit.

Abstract: In a coarse wavelength division multiplexing (CWDM) optical transmission system, a distributed feedback (DFB) laser is tuned so that the peak reflection of the grating overlaps with the gain range of the DFB laser. The diffraction grating is tuned so that the peak is positioned on the long wavelength end of the gain spectrum at a selected temperature. The optical transmission system operates in an environment having a wide temperature range (i.e., about ?40° C. to about 85° C.). Heat is applied to the laser and as the laser temperature increases, the gain range overtakes the grating peak. When the gain range and the grating peak overlap at increased laser temperature, laser output is improved.

Abstract: In a coarse wavelength division multiplexing (CWDM) optical transmission system, a distributed feedback (DFB) laser is tuned so that the peak reflection of the grating overlaps with the gain range of the DFB laser. The diffraction grating is tuned so that the peak is positioned on the long wavelength end of the gain spectrum at a selected temperature. The optical transmission system operates in an environment having a wide temperature range (i.e., about ?40° C. to about 85° C.). Heat is applied to the laser and as the laser temperature increases, the gain range overtakes the grating peak. When the gain range and the grating peak overlap at increased laser temperature, laser output is improved.

Abstract: A cooling system (12) for an x-ray tube assembly (10) includes a heat exchanger (14, 16) which receives cooling fluid from a housing (40) of the x-ray tube assembly and transfers the heat to a flow of air. A fan (90), such as an axial fan, directs the flow of air through the heat exchanger. The fan is positioned within a duct (78). A contoured air flux director (110) is positioned to intercept the flow of air from the duct and to redirect the flow of air in a direction which is generally perpendicular to an axis of rotation of the fan.