Abstract: A mechanical autonomous pipe cutting system for cutting a pipe in a wellbore includes a locking unit that prevents the system from moving within the pipe when engaged to an inner surface of the pipe, a punching unit that moves a plurality of punching elements radially relative to an axis of the system, and a cutting unit that is designed to sever the pipe. The locking unit, the punching unit, and the cutting unit are attached to a body of the mechanical autonomous pipe cutting system. The body includes a motor that rotates the cutting unit. The mechanical autonomous pipe cutting system further includes a sensor module that detects interactions between the pipe and walls of the wellbore and a control unit in electronic communication with the sensor module, the locking unit, and the punching unit.

Abstract: An electric power control apparatus may include: a power switch configured to supply power or cut off power to an electric load; a bidirectional switch configured to be connected in series with the power switch and to supply power or cut off power to the electric load; and a controller configured to turn on or turn off the power switch and the bidirectional switch, respectively.

Abstract: A method may include obtaining a cutting image data using an image capturing device. The cutting image may be obtained from drilling fluid cuttings circulated out of a wellbore. The method may include obtaining drilling operation data in real-time regarding the drilling system and obtaining drilling fluid data. The method may include determining a cutting parameter of the cuttings by using the cutting image data and an image processing function. The method may include determining a lithology parameter of the cuttings using the cutting image data and a machine-learning model. The method may include determining an equivalent circulating density (ECD) value of the drilling fluid using an ECD model, the cutting parameter, the lithology parameter, the drilling operation data, and the drilling fluid data. The method may include transmitting a command that adjusts a drilling parameter based on the ECD value of the drilling fluid.

Abstract: Systems and methods of managing appliances distributed throughout a geographic area enable control of the appliances in response to regionally localized events. An asset management server determines the location of the appliances throughout the geographic area and issues commands to appliances in a specified region which cause the appliances to change local control parameters to address the event. An asset management server also receives operating data from the appliances and uses the operating data to determine when regional events are occurring based on localized anomalies in the operating data. Refrigeration appliances have GPS receivers so that the locations of the appliances in the geographic area can be verified. Further, refrigeration appliances have primary and secondary operating modes. Secondary operating modes may be address certain regional events that can occur from time to time.

Abstract: A method may include receiving a plurality of signals from a sensor deployed in a subterranean formation and performing a step-rate analysis for the subterranean formation using the plurality of signals. An ideal volumetric flow rate and pressure of water injected into the subterranean formation by a power water injector may be determined from the step-rate analysis. A cumulative volume and pressure of water injected into the subterranean formation may be determined continuously to obtain a plurality of cumulative injected water and pressure data points. A Hall plot analysis may be performed from the plurality of cumulative injected water and pressure data points. A mitigation action may be performed when a deviation from steady state within the Hall plot analysis is beyond a constant factor, wherein the mitigation action reduces the deviation from steady state.

Abstract: A battery pack mounting structure for vehicles, includes a frame side member extending in a front and rear direction on each side of a vehicle to form a chassis frame, a battery disposed to be overlapped horizontally on inside of both frame side members, and a battery case enclosing the battery therein, wherein a case side portion provided on a side of the battery case is coupled to a lower side of the frame side member.

Abstract: A fluoropropene composition comprising Z-1,3,3,3-tetrafluoropropene, E-1,3,3,3-tetrafluoropropene, 1,1,3,3,3-pentafluoropropene, 2,3,3,3-tetrafluoropropene, and optionally 1,1,1,3,3-pentafluoropropane wherein the 2,3,3,3-tetrafluoropropene being present in an amount of 0.00001 to 1.0%. A method of producing the fluoropropene, methods for using the fluoropropene and the composition formed are also disclosed.

Abstract: An apparatus of fixing a convenient feature for a vehicle, includes a fixing module including an internal space, and a housing provided in the internal space of the fixing module and including a magnetic module therein, the housing being configured to slide toward the convenient feature based on the fixing module, to allow the magnetic module to be accommodated on an armature of the convenient feature when the housing slides toward the convenient feature, and to fix the convenient feature to the fixing module by a fixing force of the magnetic module in a state in which the magnetic module is accommodated on the armature.

Abstract: A fluid duct includes a body and an elongate rib. The body extends along a central axis and defines a lumen configured to receive a first fluid extending therethrough. The body has an inner surface and an outer surface. The central axis defines an axial direction along the central axis, a radial direction perpendicular to the central axis, and a circumferential direction oriented rotationally about the central axis. The elongate rib is positioned on the inner surface of the body and extends radially inward from the inner surface of the body. The elongate rib defines a channel extending through the elongate rib in a primary direction. The channel is configured to receive a second fluid and isolate the second fluid from the first fluid.

Abstract: The present invention provides a non-phthalate, highly sustainable plasticizer, with performance comparable to or better than the existing orthophthalate market leader (DINP) and non-phthalate market leader (DOTP) at a lower cost position. The novel plasticizers are terephthalate ester and epoxidized oil compositions and dibenzoate ester and epoxidized oil compositions. The novel plasticizer compositions are produced by blending a fast fusing terephthalate diester or dibenzoate ester with an epoxidized oil. The presence of the terephthalate diester or the dibenzoate ester in the blend imparts better physical properties and performance properties over the ester or epoxidized oil components alone.

Abstract: A testing system includes a main wellbore, at least one injection tunnel and production tunnel, a monitoring system including at least one sensor, and a recovering tube. The injection and production tunnels are parallel with each other and extend perpendicularly from the main wellbore. The method for conducting in-situ oil recovery sweep testing includes introducing an injection fluid into a main wellbore and at least one injection tunnel, monitoring conditions of the at least one production tunnel, and collecting produced fluid from the production tunnel with a recovering tube. A method for conducting sequential in-situ oil recovery sweep testing includes locating a recovering tube in a target production tunnel and conducting a sweeping process. The sweeping process includes introducing an injection fluid into an injection tunnel, monitoring conditions of the target production tunnel, collecting a produced fluid from the target production tunnel, isolating the target production tunnel, and repeating.

Abstract: The present disclosure provides a geosynthetic. In one embodiment, the geosynthetic contains a composition containing (A) a polypropylene and (B) from greater than 0 wt % to less than 3 wt % of a halogen-free flame retardant, based on the total weight of the composition. In another embodiment, the geosynthetic contains a composition containing (A) a polypropylene and (B) greater than 20 wt % zinc sulfide, based on the total weight of the composition. In another embodiment, the geosynthetic contains a composition containing (A) a polypropylene; (B) a halogen-free flame retardant; and (C) greater than 20 wt % zinc sulfide, based on the total weight of the composition. The composition has a specific gravity greater than 1.00 g/cc.

Abstract: The disclosure provides a data bus inversion (DBI) encoding device and a DBI encoding method. The DBI encoding device includes a comparator circuit, a first controllable inverting circuit and a second controllable inverting circuit. The comparator circuit checks the number of the different bits between a first raw data and a second raw data. Based on the number of the different bits, the first controllable inversion circuit determines whether to invert a first DBI bit corresponding to the first raw data as a second DBI bit corresponding to the second raw data. The second controllable inversion circuit determines, based on the second DBI bit, whether to adopt the second raw data as a second encoded data corresponding to the second raw data, or invert the second raw data to generate the second encoded data.

Abstract: A test fixture includes a cylindrical main body extending in a longitudinal direction that receives a test piece. The main body includes a cylindrical screen filter with a mesh surface that extends in along a longitudinal axis coincident with an axis of the main body. The mesh surface generates a filter cake when particle-entrained fluid is supplied through the mesh surface and the particulate is retained on the mesh surface. The main body also includes an offset shaft that extends in the longitudinal direction along an offset axis that is offset from the axis of the main body, and the test piece extends through the offset shaft and the interior of the screen filter. The main body further includes a bearing that decouples rotational motion of the offset shaft from the end cap.

Abstract: Disclosed is a non-destructive inspection method capable of effectively evaluating adhesion quality of an adhesion portion formed between a cell frame and an EGA without damage to parts or deterioration in durability or adhesiveness of parts. In addition, an EGA-cell frame assembly capable of effectively evaluating adhesion quality of an adhesion portion formed between a cell frame and an EGA by the non-destructive inspection method is provided.

Abstract: A vehicle may include a hydraulic braking device configured to hydraulically brake at least one of front and rear wheels of the vehicle, a drive motor configured to provide driving force to the at least one of the front wheels and the rear wheels, an accelerator pedal sensor detecting an operation of an accelerator pedal, and a controller electrically connected to the accelerator pedal sensor, wherein the controller is configured to generate a hydraulic braking torque through a cooperative control with the hydraulic braking device depending on an amount of regenerative braking torque while the vehicle coasts.

Abstract: A resin particle contains an amorphous resin, a crystalline resin C containing a biomass-derived resin, and at least one of polyethylene terephthalate or polybutylene terephthalate, wherein the resin particle has a core-shell structure comprising a core resin and a shell resin, the core resin comprises the crystalline resin C, and the proportion of the total mass of the biomass-derived resin, the polyethylene terephthalate, and the polybutylene terephthalate to the resin particle at 100 percent by mass is 30 or more percent by mass.

Abstract: A front vehicle body structure includes a side member disposed on a front of a vehicle body, a lower reinforcement member, a portion of which is provided inside the side member, and a joint bulk head provided inside the side member and connected to a front of the lower reinforcement member.

Abstract: According to an embodiment of the present disclosure, a method for recognizing a free-space around a vehicle comprises determining a corner point from cluster points of an object based on a line segment connecting a first point and a second point of the cluster points obtained by clustering Light Detection and Ranging (LiDAR) points, determining a segment parameter according to a distance between the line segment and the corner point based on cluster points located at both sides of the corner point, and generating an L-shaped contour of the object based on the segment parameter to output spatial information including contour information.

Abstract: The present invention provides a method for signing and submitting an electronic document by performing a single action in relation to a visual indicium, reducing the number of interactions that a signer needs to carry out to create and submit a digitally signed electronic document. The invention involves four parties: a server system, an auxiliary client system, a client system, and a recipient system. The server system stores the electronic document and facilitates its creation and submission processes. The auxiliary client system obtains the electronic document from the server system and displays the electronic document along with a visual indicium. Subsequently, the client system displays a single action for the signer to perform on the indicium in order to set in motion the signing process and submit the digitally signed electronic document to the recipient system.