Abstract: Dynamic task discovery may be implemented for performing workflow tasks. Input may be received from a workflow engine via static interface upon which a task may be performed that is part of a workflow. A version of the task may be dynamically determined according to dynamic task configuration data. The discovered version of the task may be performed and output notification of completion may be sent to the workflow engine. In some embodiments, the dynamic configuration for a task may be modified such that one performance of the task in a workflow may be according to a different version of the task than another performance the same task in the same workflow. In some embodiments, task templates with dynamically discoverable tasks may be generated by a workflow engine service in order to be implemented as tasks in a workflow.

Abstract: A pump fluid end comprising: a reciprocating element disposed within a reciprocating element bore and having an outer surface; a reciprocating element packing positioned within the reciprocating element bore; and optionally a sleeve positioned within the reciprocating element bore and having an inner surface proximate the outer surface of the reciprocating element, wherein at least a portion of the outer surface of the reciprocating element and/or the inner surface of the sleeve is coated with a multi-layer surface coating comprising a plurality of layers including: a first layer in contact with the at least a portion of the outer surface of the reciprocating element and/or the inner surface of the sleeve; and a second layer disposed over at least a portion of the first layer; and wherein at least one of the plurality of layers has a different visual appearance and/or material composition than another of the plurality of layers.

Abstract: A pump fluid end comprising: a reciprocating element disposed at least partially within a reciprocating element bore of the pump fluid end; a discharge valve assembly; a suction valve assembly coupled with a front end of the reciprocating element; and a suction valve stop, wherein the suction valve stop is positioned within the reciprocating element bore such that the suction valve stop contacts and applies a closing force to the suction valve assembly when the suction valve assembly is stuck open at the end of a discharge stroke of the reciprocating element.

Abstract: Disclosed herein are embodiments of non-magnetic, strong carbide forming alloys. In particular, the alloys can be advantageously used for powder manufacturing. Embodiments of the disclosure can have low FCC-BCC transition temperatures in combination with hard particles having a hardness of 1000 Vickers or greater. The alloys can be used in conjunction with, for example, drill pipe tool joints, drill collars, down hole stabilizers, or oilfield components, particularly as a hardbanding component.

Abstract: A valve seat comprising a primary retention component to retain the valve seat in a valve seat housing upon seating of the valve seat in the valve seat housing, and a secondary retention component to at least temporarily retain the valve seat in the valve seat housing during seating of the valve seat in the valve seat housing, whereafter the valve seat is primarily retained in the valve seat housing via the primary retention component.

Abstract: A pump comprising a pump fluid end having a reciprocating element bore; a reciprocating element having a front end opposite a fluid intake end and comprising a peripheral wall defining a hollow cylindrical body; a movable manifold comprising a reciprocating element end fluidly connected with the fluid intake end of the reciprocating element, whereby the reciprocating element end of the movable manifold moves in a same axial direction as the reciprocating element during reciprocation of the reciprocating element within the pump fluid end, and a fluid intake end configured for fluid coupling with a stationary fluid manifold such that fluid can be introduced into the movable manifold via the stationary fluid manifold and the fluid intake end of the movable manifold; and a power end operatively connected to the reciprocating element and operable to reciprocate the reciprocating element in the pump fluid end.

Abstract: A packing assembly for a pump fluid end comprising: a packing screw; a packing carrier; and a packing, wherein the packing screw, the packing carrier, and the packing are each cylindrical with a width measured along a central axis thereof that is less than a minimum spacing distance of a pump comprising the pump fluid end and a pump power end, wherein the pump fluid end comprises a reciprocating element bore in which a reciprocating element can be reciprocated via the pump power end via connection of the reciprocating element to a reciprocating element adapter coupled with a pushrod and crankshaft of the pump power end, wherein the minimum spacing distance is an axial distance measured along the central axis between a back of the pump fluid end and a front end of the reciprocating element adapter when the crankshaft of the pump power end is at top dead center.

Abstract: A valve assembly comprising a valve seat, a valve body, a valve spring, and a valve guide, wherein the valve seat and/or a valve seat housing in which the valve seat is seated comprises a plurality of grooves; wherein the valve body comprises a first side comprising a valve seat contact surface, and a second side comprising a coupler actuating feature; and wherein the valve guide comprises a coupler, and a plurality of wings, wherein the valve guide comprises a valve guide end distal the coupler, wherein, when the valve guide is coupled to the valve body via the coupler, the valve guide end distal the coupler extends a greater radial distance from the central axis of the valve body than the plurality of wings, and wherein the valve guide can be coupled to or decoupled from the valve body via the coupler by actuating the coupler actuating feature.

Abstract: A hose for a reciprocating pump, the hose comprising: a first end and a second end separated by a length (L) along a centerline of the hose, wherein the first end reciprocates with a reciprocating element of the reciprocating pump during operation of the reciprocating pump; an inner surface and an outer surface separated by a thickness; and a variable bend radius wherein a bend radius of a first section of the hose is different from a bend radius of at least one second section of the hose, such that, during operation of the reciprocating pump, a stress on the first end of the hose, the second end of the hose, or both the first end of the hose and the second end of the hose is reduced relative to that of a hose that does not contain the variable bend radius.

Abstract: A pump fluid end comprising a discharge valve assembly comprising a discharge valve seat and a discharge valve body, a suction valve assembly comprising a suction valve seat and a suction valve body, and a reciprocating element, wherein an inside diameter of the discharge valve seat is greater than an outside diameter of the suction valve body, the suction valve seat, the reciprocating element, or a combination thereof.

Abstract: A clamp comprising a first contact surface perpendicular to a central axis of the clamp and a second contact surface tapered relative to a central axis of the clamp, whereby the clamp allows for concentric or non-concentric mating between a first component and a second component such that, when rigidly held together by the clamp such that the first contact surface of the clamp contacts a portion of the first component and the second contact surface of the clamp contacts a portion of the second component, a central axis of the first component is parallel to or coincident with a central axis of the second component.

Abstract: A reciprocating element includes a cylindrical body having a front end opposite a tail end, and a central axis. The tail end of the cylindrical body is configured to be operatively connected to a pump power end that reciprocates the reciprocating element along a path within a bore of a pump fluid end during operation of a pump. The front end of the cylindrical body includes one or more tool engagement features positioned about an outer circumference of the front end of the cylindrical body of the reciprocating element and adapted to engage a corresponding one or more reciprocating element engagement features of a reciprocating element end of a tool. The reciprocating element can be rotated, pulled, and/or pushed via the tool relative to the central axis of the cylindrical body.

Abstract: In certain aspects, the inventive subject matter is directed to production of constructs of footwear and components thereof by jet extrusion. The inventive subject matter contemplates novel processes for making such constructs using jets or streams of materials that solidify as fibers, and which form into two- or three-dimensional webs as they are collected. The webs may be in the nature of films, membranes, or mats. In some embodiments, the inventive subject matter generally relates to nonwoven textiles consisting of webs of superfine fibers, i.e., fibers with diameters in nanoscale or micronscale ranges.

Abstract: The present disclosure relates to an ?-aminoamide derivative compound and a pharmaceutical composition containing the same. According to various embodiments of the present disclosure, provided is a therapeutic agent which can overcome the disadvantages of existing drugs used as a MAO-B inhibitor and, specifically, reversibly inhibits MAO-B through a non-covalent bond so as to alleviate or eliminate the side effects of the existing drugs which exhibit a therapeutic effect by irreversibly acting via a covalent bond with MAO-B. Particularly, a new compound having superior stability and efficacy compared to the existing reversible MAO-B inhibitors may be provided.

Abstract: A method of processor-aided design of a workholding frame for a manufacturing process includes using a processor to perform operations including receiving, by a processor, first data representing a first three-dimensional (3D) model of an object to be manufactured. The operations further include obtaining, by the processor, second data describing a second 3D model. The second 3D model represents a bounding box having one or more sides adjoining a surface of the object within the first 3D model. The operations further include automatically generating, by the processor and based on the first data and the bounding box, third data indicating one or more parameters of the workholding frame. The workholding frame and the object are to be formed based on the one or more parameters and as a single workpiece from a blank material during a machining process associated with the object.

Abstract: A furniture component has a central member, a pair of sides of each defined by a chord of a circle, a first element affixed to the top of the central member, and a second element affixed to the bottom of the central member. The pair of segments are respectively affixed to the sides of the central member. The central member, the pair of segments and the first and second elements are formed of a wooden material. The central member has a generally square configuration. The central member is entirely surrounded by the pair of segments and the first and second elements. Each of the pair of segments in each of the first and second elements having a planar side affixed to the central member and a curved surface opposite to the planar surface.

Abstract: In some aspects, the inventive subject matter contemplates providing a substrate; providing a biomaterial to be affixed to the substrate; and subjecting the substrate and biomaterial to reactive species from a plasma generated by an atmospheric plasma apparatus until the biomaterial affixes to the substrate. The biomaterial may be silk or wool polypeptide. The biomaterial is deposited as a monomeric film on the surface of the substrate before the substrate is subjected to the reactive species of the plasma. Once the substrate with the film of biomaterial is subjected to the reactive species, the reactive species facilitates the polymerization of the film as a coating on the underlying portion of substrate. The resulting coated substrates are novel constructs that have improved attributes based on the biomaterial selected for use. For example, silk proteins may be used improve the hand or strength of textile materials.

Abstract: An electro-separation apparatus for separation of drilling fluids is provided. The apparatus can include a reaction chamber and a set of electrode plates provided in the reaction chamber. A sediment outlet can be provided near a bottom of the reaction chamber and wiper blades can be provided for sweeping sediment that has collected on the electrode plates towards the sediment outlet.

Abstract: A user accesses a merchant system website via a user computing device, selects items for purchase, and selects an option to checkout using a digital wallet account. The user selects payment information associated with a payment card device for use in an online transaction. The merchant system transmits an unpredictable number to the user computing device. The user taps the payment card device to the user computing device to establish a wireless communication channel over which the payment card device receives the unpredictable number. The payment card device transmits payment card information and a check sum calculated from the unpredictable number and by the payment card device to the merchant system via the user computing device. The merchant system transmits the check sum and payment card information in a transaction authorization request to the issuer system, which verifies the check sum using the shared secret and the unpredictable number.

Abstract: The present disclosure relates to an ?-aminoamide derivative compound and a pharmaceutical composition containing the same, for treating a neurodegenerative diseases.