Abstract: Embodiments disclosed herein include glass cores with through glass vias (TGVs). In an embodiment, an apparatus comprises a substrate that is a solid glass layer. In an embodiment, an opening is provided through a thickness of the substrate, and a liner with a first surface is on a sidewall of the opening and a second surface is facing away from the sidewall of the opening. In an embodiment, the liner comprises a matrix, and filler particles in the matrix. In an embodiment, a plurality of cavities are provided into the second surface of the liner. In an embodiment, a via is in the opening, where the via is electrically conductive.

Abstract: Hybrid cores including adhesive promotion layers and related methods are disclosed. An example substrate core for an integrated circuit disclosed herein includes a frame including interior edge, a glass panel including an exterior edge, and an adhesion promotion layer disposed between the interior edge and the exterior edge.

Abstract: Methods and systems include using downhole data to determine a static bulk modulus of dry rock or rock frame in a porous formation and determine a static bulk modulus of grain minerals in the porous formation. Biot's coefficient for the porous formation can be determined based on the static bulk modulus of dry rock or rock frame and the static bulk modulus of grain minerals. Effective stress of the porous formation can be determined based on Biot's coefficient. Effective stress of the porous formation is used in geomechanical applications, including hydraulic fracturing, wellbore stability analysis, and reservoir integrity assessments.

Abstract: Technologies for integrated graded index (GRIN) lenses for photonic circuits is disclosed. In one illustrative embodiment, a glass substrate has a cavity in which a GRIN lens is disposed. In other embodiments, the GRIN lens may be on a surface of the glass substrate. The GRIN lens focuses and collimates light to a free-space beam from a waveguide defined in the glass substrate. Another component such as a photonic integrated circuit (PIC) die may also have a GRIN lens and focus the free-space beam into a waveguide in the PIC die. The use of GRIN lenses allows for passive coupling to waveguides without further active alignment that minimizes signal transmission losses.

Abstract: Degradation of the reflectivity of one or more reflective optical elements in a system for generating EUV radiation is reduced by the controlled introduction of a gas into a vacuum chamber containing the optical element. The gas may be added to the flow of another gas such as hydrogen or alternated with the introduction of hydrogen radicals.

Abstract: Degradation of the reflectivity of one or more reflective optical elements in a system for generating EUV radiation is reduced by the controlled introduction of a gas into a vacuum chamber containing the optical element. The gas may be added to the flow of another gas such as hydrogen or alternated with the introduction of hydrogen radicals.

Abstract: A cutting element may include a fluid passage passing through the cutting element. The cutting element may further include a cutting edge and an aperture proximate the cutting edge. The aperture may be coupled to the fluid passage.

Abstract: A method of monitoring a subterranean operation includes sampling fluid from a borehole during the operation, and estimating, in near real time, a concentration of one or more gases in the sampled fluid and an isotope composition of the sampled fluid. The method also includes identifying an operational inefficiency in the operation based on the isotope composition associated with the one or more gases, and performing, during the operation, at least one of: alerting an operator and adjusting an operational parameter of the operation, based on identifying the operational inefficiency.

Abstract: Methods, systems, devices, and products for well logging. Methods include conveying a logging tool in the borehole on a carrier; obtaining a borehole image over at least one interval of borehole depth from well logging measurements with a downhole imaging instrument; obtaining acoustic information representative of acoustic reflections from a far-field region of the formation; obtaining quantitative borehole fluid information indicative of properties of a formation fluid in a near-field region of the borehole; generating a borehole connectivity fracture model of the formation in dependence upon the borehole image, the quantitative borehole fluid information, and the acoustic information. Methods may include identifying near-field fractures from the borehole image, and/or identifying far-field fractures from the acoustic information.

Abstract: A method of estimating a property associated with a subterranean region includes acquiring a synthetic physical model of the subterranean region, the physical model made from at least a mineral material and constructed using an additive manufacturing process, the physical model having a microstructure, the microstructure having a parameter that varies along at least a first axis of the physical model. The method also includes performing a measurement of the physical model under an applied condition, and estimating the property of the subterranean region based on the measurement.

Abstract: Fabricating a doped bismuth vanadate electrode includes spray coating a substrate with an aqueous solution with vanadium-containing anions and bismuth-containing cations to yield a coated substrate, heating the coated substrate to form crystalline bismuth vanadate on the substrate, and doping the crystalline bismuth vanadate with lithium ions to yield a doped bismuth vanadate electrode.

Abstract: Degradation of the reflectivity of one or more reflective optical elements in a system for generating EUV radiation is reduced by the controlled introduction of a gas into a vacuum chamber containing the optical element. The gas may be added to the flow of another gas such as hydrogen or alternated with the introduction of hydrogen radicals.

Abstract: A cutting element may include a fluid passage passing through the cutting element. The cutting element may further include a cutting edge and an aperture proximate the cutting edge. The aperture may be coupled to the fluid passage.

Abstract: Degradation of the reflectivity of one or more reflective optical elements in a system (SO) for generating EUV radiation is reduced by the controlled introduction of a gas into a vacuum chamber (26) containing the optical element. The gas may be added to the flow of another gas such as hydrogen or alternated with the introduction of hydrogen radicals.

Abstract: Systems, tools, and methods for optimizing fracturing schedules located along a horizontal wellbore include obtaining drilling cuttings during a drilling operation representative of a predetermined interval of the horizontal wellbore, performing at least one analytical process on the obtained drilling cuttings to determine at least one geomechanical property of the interval of the obtained drilling cuttings for the interval, generating a formation analysis estimation for the interval from the, wherein the formation analysis estimation comprises at least one of (i) a brittleness of the formation at the interval or (ii) a minimum horizontal stress of the formation at the interval, and based on the formation analysis estimation, at least one of (i) configuring a super-stage for deployment to the interval to perform a fracturing operation or (ii) designing a fracturing schedule to be performed to frac the formation at the interval.

Abstract: Methods and systems include using downhole data to determine a static bulk modulus of dry rock or rock frame in a porous formation and determine a static bulk modulus of grain minerals in the porous formation. Biot's coefficient for the porous formation can be determined based on the static bulk modulus of dry rock or rock frame and the static bulk modulus of grain minerals. Effective stress of the porous formation can be determined based on Biot's coefficient. Effective stress of the porous formation is used in geomechanical applications, including hydraulic fracturing, wellbore stability analysis, and reservoir integrity assessments.

Abstract: A method of monitoring a subterranean operation includes sampling fluid from a borehole during the operation, and estimating, in near real time, a concentration of one or more gases in the sampled fluid and an isotope composition of the sampled fluid. The method also includes identifying an operational inefficiency in the operation based on the isotope composition associated with the one or more gases, and performing, during the operation, at least one of: alerting an operator and adjusting an operational parameter of the operation, based on identifying the operational inefficiency.

Abstract: Degradation of the reflectivity of one or more reflective optical elements in a system (SO) for generating EUV radiation is reduced by the controlled introduction of a gas into a vacuum chamber (26) containing the optical element. The gas may be added to the flow of another gas such as hydrogen or alternated with the introduction of hydrogen radicals.

Abstract: Fabricating a doped bismuth vanadate electrode includes spray coating a substrate with an aqueous solution with vanadium-containing anions and bismuth-containing cations to yield a coated substrate, heating the coated substrate to form crystalline bismuth vanadate on the substrate, and doping the crystalline bismuth vanadate with lithium ions to yield a doped bismuth vanadate electrode.

Abstract: Methods and apparatus for acoustic velocity well logging. Methods may include estimating a property of an earth formation, including estimating a depth-dependent lateral tectonic strain profile for the earth formation by generating a linear-to-linear transformation constrained to map a first value of a shear wave velocity parameter of the formation to an estimated minimum value of lateral tectonic strain in at least one direction corresponding to at least one principal horizontal stress of the formation, and map a second value of the shear wave velocity parameter of the formation to an estimated maximum value of lateral tectonic strain in the at least one direction, wherein the strain values may be estimated using closure pressure. The first value of the shear wave velocity parameter may be a minimum value of shear wave slowness and the second value of the shear wave velocity parameter is a maximum value of shear wave slowness.