Abstract: A tent assembly has a supporting frame and a rainfly. The supporting frame has a top base and multiple supporting rod units. Each supporting rod unit has a top rod, a first joint, a middle rod, and two hooks. The first joint is connected with the top rod and has a pivotal center. The middle rod is connected with the first joint. The hooks respectively have an end pivotally connected with the first joint respectively at positions away from the pivotal center of the first joint. The rainfly is connected with the supporting frame and has multiple connection units. Each connection unit has multiple connection ropes and at least one elastic belt. The at least one elastic belt is mounted around the hooks of a corresponding one of the supporting rod units.

Abstract: An automatic astronomical observation system includes an astronomical telescope (1), a star finding servo motor (2) for driving the astronomical telescope (1), and a control system (4). A focusing servo motor (3) is connected to a lens regulation mechanism of the astronomical telescope (1); a CMOS sensor (5) used for obtaining a starry sky image is disposed on the astronomical telescope (1); the control system (4) includes a control chip, a gyroscope, a memory, and a WIFI communication interface; the control chip is electrically connected to the CMOS sensor (5), the gyroscope, the memory, and the WIFI communication interface; a handheld device provided with a WIFI communication interface is disposed by being fitted to the control system (4); and a GPS module is disposed in the control system (4) or the handheld device. Also provided is an automatic astronomical observation method.

Abstract: A method for etching a bevel edge of a substrate in a processing chamber is provided. The method includes flowing an inert gas into a center region of the processing chamber defined above a center region of the substrate and flowing a mixture of an inert gas and a processing gas over an edge region of the substrate. The method further includes striking a plasma in the edge region, wherein the flow of the inert gas and the flow of the mixture maintain a mass fraction of the processing gas substantially constant. A processing chamber configured to clean a bevel edge of a substrate is also provided.

Abstract: A seal assembly (100) is provided, which is used to seal the connection region between a glass (103) and a shaft assembly (108) passing through the glass (103). The shaft assembly (108) may comprise a shaft (113) and a threaded bushing (114) around the shaft (113). The seal assembly (100) may comprise an outer seal (101), which has a body portion (115) supported on the glass (103), and further comprises at least one sealing portion (116) to form at least one sealing area (119, 121); and the seal assembly (100) further comprises an inner rotatable seal (106), which has a body portion (122) with a thread (128) for engaging a thread (110) of the bushing (114), and which further comprises at least one second sealing portion (123) to form at least one sealing area (124). Therein, the body portion (115) of the outer seal (101) and the body portion (122) of the inner rotatable seal (106) have corresponding threads (102, 107) for engaging the outer seal (101) with the inner rotatable seal (106).

Abstract: A bicycle frame assembly is formed of a head tube, a seat tube, a linking member, and a support holder. The linking member includes a first part, two second parts, and two positioning parts. The first part is connected with the seat tube. The two positioning parts are spaced from each other and extend in an interval toward the head tube from the first part to jointly form a limiting portion therebetween. The two second parts are connected with the head tube and located between the head tube and the two positioning parts. The support holder is movably mounted to the limiting portion relative to the linking member for accommodating a portable part or accessory. Therefore, the present invention facilitates that the rider can take or put the portable part or accessory from or into the support holder with his or her natural riding posture.

Abstract: A received query is analyzed to provide a set of potential bushy tree operation plans that include the creation of one or more “sub-joins” that provide intermediate resultant “sub-tables”, and using these sub-tables as operands in the other predicates of the query. The received query is analyzed to identify “satellite” tables and “seed” tables. A satellite table is a table of the database that is filtered by a selective predicate, and is connected to only one other table in the database via at least one linking predicate, and a seed table is a table of the database that is connected to a satellite table and at least one other table. Multiple candidate operation plans are formulated as bushy trees that include a sub-join of each seed table and its connected satellite table. A least cost operation plan is selected for execution from among these candidate operation plans and the conventional least cost linear operation plan based on the costs associated with each operation plan.

Abstract: A valve assembly is provided herein. The valve assembly may include a valve stem coupled to a coil spring and an impact dampening tappet partially enclosing the spring and valve stem and in contact with a cam, the impact dampening tappet including an exterior metal layer having a cam contacting surface and an interior elastomeric layer traversing at least a portion of the interior surface of the exterior metal layer.

Abstract: Embodiments may provide a valve train for an engine including a valve stem configured for reciprocating movement to open and close a port in a combustion chamber of the engine. The valve train may also include an elastomeric element coupled with the valve stem, and a mass may be coupled with the elastomeric element and able to move relative to the valve stem.

Abstract: A tent assembly has a supporting frame and a rainfly. The supporting frame has a top base and multiple supporting rod units. Each supporting rod unit has a top rod, a first joint, a middle rod, and two hooks. The first joint is connected with the top rod and has a pivotal center. The middle rod is connected with the first joint. The hooks respectively have an end pivotally connected with the first joint respectively at positions away from the pivotal center of the first joint. The rainfly is connected with the supporting frame and has multiple connection units. Each connection unit has multiple connection ropes and at least one elastic belt. The at least one elastic belt is mounted around the hooks of a corresponding one of the supporting rod units.

Abstract: An automatic astronomical observation system includes an astronomical telescope (1), a star finding servo motor (2) for driving the astronomical telescope (1), and a control system (4). A focusing servo motor (3) is connected to a lens regulation mechanism of the astronomical telescope (1); a CMOS sensor (5) used for obtaining a starry sky image is disposed on the astronomical telescope (1); the control system (4) includes a control chip, a gyroscope, a memory, and a WIFI communication interface; the control chip is electrically connected to the CMOS sensor (5), the gyroscope, the memory, and the WIFI communication interface; a handheld device provided with a WIFI communication interface is disposed by being fitted to the control system (4); and a GPS module is disposed in the control system (4) or the handheld device. Also provided is an automatic astronomical observation method.

Abstract: A fixture has an adsorbing assembly and a clamping assembly. The adsorbing assembly has a flexible disc, a cover, and a handle. The flexible disc has a pulling pole. The cover has a positioning pipe and two protruding portions. The positioning pipe is formed centrally on the cover. The two protruding portions are located at two sides of the positioning pipe. The handle has two fastening portions respectively fastened with the two protruding portions. The clamping assembly has a first clamping portion, an adjusting component, a pivot clamping portion and a second clamping portion. The first clamping portion has a cylinder. The adjusting component is mounted in the first clamping portion. The pivot clamping portion is connected to the cylinder of the first clamping portion. The second clamping portion is combined with the first clamping portion to position the pivot clamping portion.

Abstract: A shielding device has a body, at least one slewing mechanism and two adsorbing assemblies. The body has a housing, a first cover and a second cover. The first cover and the second cover are mounted in the housing. The slewing mechanism has a spindle, a rotor, a rolling pipe, a rotating casing and a covering cloth. The spindle is mounted in the second cover. The rotor is mounted on and around the spindle and has a fastening portion, a torsion spring and a securing ring. The torsion spring is connected to the fastening portion. The securing ring is securely mounted on and around the spindle. The fastening portion is fastened in the rolling pipe. The rotating casing is mounted pivotally in the first cover. The covering cloth is mounted on the rolling pipe. The adsorbing assemblies are mounted on the body.

Abstract: Systems and methods for assessing the quality of a review submitted to a review platform are provided. Reviewers that submit reviews may desire for their reviews to be more prominent or to be assigned greater weight by users of the review platform. According to aspects of the present disclosure, reviewers can optionally enrich reviews posted to an online review platform by associating a quality score with the reviews. The quality score for the review can be determined based on the reviewer's commentary regarding a product or service in a social media setting or in other settings. Reviews posted in an online platform can be prioritized based on the quality score such that reviews consistent with other reviewer generated content are more prominent. Indicia indicative of the quality score can be displayed in conjunction with the reviews such that reviews that are consistent reviews are more readily discernible.

Abstract: Embodiments may provide a valve train for an engine including a valve stem configured for reciprocating movement to open and close a port in a combustion chamber of the engine. The valve train may also include an elastomeric element coupled with the valve stem, and a mass may be coupled with the elastomeric element and able to move relative to the valve stem.

Abstract: Systems and methods for assessing the quality of a review submitted to a review platform are provided. Reviewers that submit reviews may desire for their reviews to be more prominent or to be assigned greater weight by users of the review platform. According to aspects of the present disclosure, reviewers can optionally enrich reviews posted to an online review platform by associating a quality score with the reviews. The quality score for the review can be determined based on the reviewer's commentary regarding a product or service in a social media setting or in other settings. Reviews posted in an online platform can be prioritized based on the quality score such that reviews consistent with other reviewer generated content are more prominent. Indicia indicative of the quality score can be displayed in conjunction with the reviews such that reviews that are consistent reviews are more readily discernible.

Abstract: Systems and methods for facilitating the exchange of information relating to product review data expressed by a reviewer with a social media platform or in other platforms are provided. More particularly, a reviewer can optionally surface product review data extracted from reviewer generated content. The product review data can include a sentiment expression about a product or service. The reviewer can optionally make the product review data available to a third party entity that might be interested in the product review data. An interface can be provided between the reviewer and the entity that enables the entity to interact with reviewer. For instance, the entity can offer an incentive to the reviewer for a specified use of the product review data.

Abstract: A blood testing meter with a fool-proofing function has a measuring display unit, a connector and a blocking structure. The connector is mounted in the measuring display unit and has at least one guiding groove, and the at least one guiding groove is formed through an outer side of the measuring display unit. The blocking structure is mounted on the outer side of the measuring display unit and is adjacent to an opening of the connecting groove. When the blood test strip is inserted from a wrong direction into the connector, the slot would be engaged with the blocking structure to prevent the blood test strip from being inserted into the connector.

Abstract: A valve assembly is provided herein. The valve assembly may include a valve stem coupled to a coil spring and an impact dampening tappet partially enclosing the spring and valve stem and in contact with a cam, the impact dampening tappet including an exterior metal layer having a cam contacting surface and an interior elastomeric layer traversing at least a portion of the interior surface of the exterior metal layer.

Abstract: A bevel etcher for cleaning a bevel edge of a semiconductor substrate with plasma includes a lower electrode assembly having a lower support having a cylindrical top portion. An upper dielectric component is disposed above the lower electrode assembly having a cylindrical bottom portion opposing the top portion of the lower support. A tunable upper plasma exclusion zone (PEZ) ring surrounds the bottom portion of the dielectric component, wherein a lower surface of the tunable upper PEZ ring includes an upwardly tapered outer portion extending outwardly from the bottom portion of the upper dielectric component, wherein a vertical height of an adjustable gap between the lower surface of the upper PEZ ring and an upper surface of a substrate supported on the lower support can be increased or decreased such that the extent of the bevel edge of the substrate to be cleaned by the plasma can respectively be adjusted radially inward or radially outward.

Abstract: Embodiments may provide a valve train for an engine including a valve stem configured for reciprocating movement to open and close a port in a combustion chamber of the engine. The valve train may also include an elastomeric element coupled with the valve stem, and a mass may be coupled with the elastomeric element and able to move relative to the valve stem.