Abstract: A bullet resistant wall system including ballistic paver blocks constructed, configured, and arranged to form a wall having at least two adjacent individual layers. The at least two adjacent individual layers include multiple adjacent rows of the ballistic paver blocks. The ballistic paver blocks are formed from wet ballistic concrete prepared without an addition of a preformed foam or wet ballistic concrete prepared without an addition of a stabilizing agent.

Abstract: Provided is a jewelry ring comprising a substrate, a first coating of a metallic nitride or a metallic boride, and an external metallic coating. Also provided is a metallic article comprising a substrate comprising tungsten carbide, cobalt, tungsten, titanium, titanium carbide, zirconium, tantalum or aluminum; a first coating of a metallic nitride or a metallic boride; and an external metallic coating.

Abstract: An installation for mounting an outer sun gear in a reduction gear. The reduction gear includes an outer sun gear and planet gears meshing with an inner sun gear and with the outer sun gear and each mounted for free rotation around a pivot of a planet carrier. The outer sun gear includes a first crown having a first toothing and a second crown having a second toothing each meshing with first and second toothings of the planet gears. The installation includes a frame for supporting the reduction gear along its longitudinal axis, and first and second torque applicators, such as cylinders, that apply a torque around an axis of first and second rings, respectively. The first ring is configured to engage with the first crown of the outer sun gear and the second ring is configured to engage with a second crown of the outer sun gear.

Abstract: A ballistic panel formed with a ballistic material, the panel comprising: a panel with a filled void; wherein the filled void is filled with a ballistic replacement material; and wherein the filled void exhibits ballistic properties equivalent to the ballistic panel formed with the ballistic material; wherein the ballistic replacement material and the ballistic material comprise between about 1121 kg/cubic meter (about 70 pounds per cubic foot) and about 1442 kg/cubic meter (about 90 pounds per cubic foot); and wherein the ballistic replacement material and the ballistic material comprise: about 1 part by mass Portland cement; about 0.5 to 1.5 part by mass fine aggregate; and about 0.0005 to 0.05 part by mass air entrainment additive; about 0.005 to 0.15 part by mass fiber; about 0.005 to 0.05 part by mass aluminum hydroxide and about 0.005 to 0.05 part by mass calcium phosphate.

Abstract: A polymeric article of high ductility produced by rapid prototyping or selective laser sintering, and a method of making the same. The article comprises a plurality of layers of a fused thermoplastic powder, the thermoplastic powder comprising asymmetric fibrous particles having a mean length L and a mean width W, wherein L>2 W. Within each of the layers, the mean length L of the asymmetric fibrous particles is preferentially oriented in a plane parallel to the layer. The polymeric article has a stress-strain curve such that ultimate strength is reached at a strain of 10% to 20%, and breaking stress is reached at >30% strain.

Abstract: A method and device for mounting a plug in a hollow shaft is disclosed. The device includes a holding device for holding the plug to be mounted and a joining device for sliding the hollow shaft onto the plug held in the holding device. The holding device is radially adjustable relative to an axis of the hollow shaft to compensate for an axial offset between the axis of the hollow shaft and an axis of the plug. The joining device can be inclined to compensate for an inclined position of the axis of the hollow shaft and the axis of the plug. The method includes pressing the joining device onto the hollow shaft from above and adjusting the holding device with the plug radially to the hollow shaft if the axial offset is present, and inclining the joining device if the inclined position is present.

Abstract: A device for monitoring clamping of an assembly including at least one part to be clamped, an internally threaded element and an externally threaded element engaged in an internal thread of the internally threaded element. The device includes a driver to rotate one of the elements including the internally threaded element and the externally threaded element to clamp the assembly and a first sensor to measure a screwing torque of the driver, a tool for holding fixed against rotation the other of the elements including the internally threaded element and the externally threaded element, a second sensor to measure a reaction torque of the holding tool, a mechanism for determining a third parameter chosen from a time elapsed from a given time and a screwing angle from a reference position, and a calculation system to determine pre-tension in the externally threaded element.

Abstract: A microfluidic device for use in a serial crystallography apparatus includes a modular 3D-printed nozzle having an inlet, an outlet, and a first snap engagement feature. The microfluidic device further includes a modular 3D-printed fiber holder having an outlet and a second snap engagement feature. The first snap engagement feature is configured to engage the second snap engagement feature to removably couple the nozzle to the fiber holder. The outlet of the fiber holder is aligned with the inlet of the nozzle when the first snap engagement feature is coupled to the second snap engagement feature.

Abstract: The invention is generally a nasal pharyngeal and oral swab that may be mass-produced via three-dimensional (3D) printing. To achieve the right materials for 3D printing the swabs, exemplary embodiments employ a set of materials that result in a rigid structure that has bendable properties (at least in the neck or stem region of the swab), but more rigid and bridle properties at a breakpoint of the swab. In exemplary embodiments, this may be achieved by constructing the device of a first photosensitive material that is generally soft and bendable when cured, and a second photosensitive material that is generally rigid and brittle when cured, wherein the soft bendable material comprises of about 70% to 90% of the photosensitive composition used to 3D print the swab, and the rigid and brittle material comprises of about 30% to 10% of the photosensitive composition used to 3D print the swab.

Abstract: A method of additively manufacturing a composite article with tuned impedance and refractive-index in three dimensions. The method includes providing a ferrite feedstock. The ferrite feedstock is loaded with ferrite particles. The method further includes depositing and curing the ferrite feedstock. Therein a composite article is formed.

Abstract: A method of adapting an electronic equipment enclosure for cable management includes: providing the enclosure, which has a frame structure at least partially enclosed by a plurality of panels, wherein a first panel of the plurality of panels includes one or more panel knockouts arranged interiorly of outer edges of the first panel, and wherein each of the one or more panel knockouts is connected to the first panel at one or more attachment points; removing a first panel knockout by severing a connection between the first panel knockout and the first panel at the one or more attachment points, thereby providing an access opening through the first panel to an interior of the electronic equipment enclosure; and installing first and second frame members of a split brush assembly at respective sides of the access opening such that sets of bristles cover respective portions of the access opening.

Abstract: A vapor chamber device and a manufacturing method are disclosed. The vapor chamber has a housing and multiple independent chambers. The housing includes two shells opposite to each other. The independent chambers are formed between the two shells. Each independent chamber contains a working fluid and has at least one diversion bump and a capillary structure. The diversion bump is formed on an inner surface of the second shell, and the capillary structure is mounted on the diversion bump. When the vapor chamber device is vertically mounted to a heat source, the independent chambers at an upper portion of the vapor chamber device still contain the working fluid. The working fluid in the independent chambers may not all flow to a bottom of the vapor chamber device. Therefore, a contact area between the working fluid and the heat source is increased and heat dissipation efficiency is improved.

Abstract: An additively manufactured node is disclosed. A node is an additively manufactured (AM) structure that includes a feature, e.g., a socket, a receptacle, etc., for accepting another structure, e.g., a tube, a panel, etc. An additively manufactured node can include a surface with an opening to a feed channel through the node. A second surface of the node can include with a plurality of openings to an array of outlet channels. Each of the outlet channels can extend through the node and can connect to the feed channel. Tortuous paths can be used between channels created by the node surface and adjacent structures as well as node interior surfaces. These tortuous paths can be tuned to allow for optimal fluid flow processes.

Abstract: Blood-feeding systems for hematophagous arthropods, as well as methods of fabricating and using the same, are provided. The blood-feeding systems can be fabricated on site (e.g., in a lab) by using a three-dimensional (3D) printer (e.g., a direct drive 3D printer such as a direct drive fused deposition modeling (FDM)-type 3D printer) and regular lab tools. The blood-feeding systems can utilize a syringe filling system that allows leftover blood to be recovered after use, or added or changed while the feeder is in use.

Abstract: An insulated structural cabinet for an appliance includes outer walls that are attached together to define a structural envelope that is operable from an expanded state that includes an expanded interior volume of the interior cavity, to a final state that includes a contracted interior volume of the interior cavity, wherein the contracted interior volume is less than the expanded interior volume. An insulating material disposed throughout the interior cavity in the expanded state. Operation of the structural envelope to the final state densifies the insulating material. Operation of the structural envelope to the final state is performed by a vacuum pump that expresses air from the interior cavity. The structural envelope is also operable from a performed state to the expanded state via an expanding device, and subsequently operable from the expanded state to the final state.

Abstract: While the loading member supporting mechanism moves the loading member from the workpiece set state to the workpiece retracted state and returns to the workpiece set state again, the displacement drive unit and the rotation drive unit perform an operation of disposing the workpiece holding portion arranged at the processing position to the replacement position and an operation of disposing the workpiece holding portion disposed at the replacement position to the processing position in a trajectory in which the loading member does not interfere with the shoe.

Abstract: A novel manufacturing method for functionally graded component includes a cold sprayed additive manufactured core material and a cold sprayed additive manufactured set of teeth around said core made from another material.

Abstract: A method of fastening gearbox housing components together, comprising: selecting a gearbox housing fastener comprising a straight shaft having a longitudinal axis, a first threaded portion, a single cylindrical central portion, and a second threaded portion, wherein the first and second threaded portions are separated by the cylindrical portion, wherein the cylindrical portion comprises a single reduced diameter that is less than first and second minor diameters of the first and second threaded portions, the first and second threaded portions are chamfered, and the fastener comprises a material having a tensile strength along the longitudinal axis that is greater than a sheer strength at the cylindrical portion; and fastening the gearbox housing components together with the fastener, wherein the first and third gearbox housing components are fastened with the first and second threaded portions, and the second gearbox housing component is positioned around the single cylindrical central portion.

Abstract: The invention relates to a fastener (10) for attaching together workpieces (50a, 50b) having aligned holes therethrough, the fastener (10) comprising a shank portion (11) and a head portion (13) provided at one end of the shank portion (11), the diameter of the shank portion (11) and/or of the head portion (13) being selected such that the fastener (10) can be installed in the aligned holes in close tolerance. The fastener (10) further comprises an oversizing structure (20), said oversizing structure (20) being firmly bonded to at least a part of the shank portion (11) and/or the head portion (13) in order to oversize at least the part of the shank portion (11) and/or the head portion (13) such as to allow the fastener (10) to be installed in aligned holes (60a, 60b) having a diameter larger than that required for the fastener (10) without the oversizing structure (20).

Abstract: A method of manufacturing a seal includes providing a seal arc segment defining first and second seal supports at circumferential ends. The seal arc segment further defining radially inner and outer sides. The radially outer side includes radially-extending sidewalls and a radially inner surface joining the radially-extending sidewalls. The radially-extending sidewalls and the radially inner surface define a pocket. The method includes machining the radially inner surface to have a higher surface roughness than the sidewalls.