Abstract: Tracing subterranean fluid flow includes providing a first polymeric tracer to a first injector, collecting a first aqueous sample from a first producer, and assessing the presence of the first polymeric tracer in the first aqueous sample. The first polymeric tracer includes a first polymer formed from at least a first monomer. The presence of the first polymeric tracer in the first aqueous sample is assessed by removing water from the first aqueous sample to yield a first dehydrated sample. pyrolyzing the first dehydrated sample to yield a first gaseous sample, and assessing the presence of a pyrolization product of the first polymer in the first gaseous sample. The presence of the pyrolization product of the first polymer in the first gaseous sample is indicative of the presence of a first subterranean flow pathway between the first injector location and the first producer location.

Abstract: A composition including a coated nanoparticle and an ion, wherein the coated nanoparticle includes a nanoparticle, a linker, and a stabilizing group; methods of making and using the composition; and systems including the composition. The linker includes an anchoring group, a spacer, and a terminal group. The anchoring group is covalently bound to the nanoparticle and at least one of the terminal groups is covalently bound to at least one stabilizing group. A composition including a crosslinked-coated nanoparticle and an ion, wherein the crosslinked-coated nanoparticle includes a nanoparticle and a coating that includes a linker, a crosslinker, and a stabilizing group; methods of making and using the composition; and systems including the composition.

Abstract: A composition including a coated nanoparticle including a nanoparticle and a cross-linked carbohydrate-based coating and an ion selected from the group consisting of Li+, Na+, K+, Rb+, Cs+, Be2+, Mg2+, Ca2+, Sr2+, Ba2+, and mixtures thereof; methods of making and using the composition; and systems including the composition.

Abstract: A method includes obtaining a sample of a fluid from a subterranean zone while the fluid is being extracted from the zone. A chemical composition of the sample is measured. A temperature and a pressure of the subterranean zone are measured. The measured properties are associated with a time point. The measured properties are incorporated into a set of historical data. A chemical composition of a fluid to be extracted from the subterranean zone at a future time point is determined based on the set of historical data. A presence of a liquid phase in the fluid to be extracted from the subterranean zone at the future time point is determined. A flow rate of the fluid being extracted from the subterranean zone is adjusted in response to determining the presence of the liquid phase in the fluid to be extracted from the subterranean zone at the future time point.

Abstract: A composition including a coated nanoparticle including a nanoparticle and a cross-linked carbohydrate-based coating and an ion selected from the group consisting of Li+, Na+, K+, Rb+, Cs+, Be2+, Mg2+, Ca2+, Sr2+, Ba2+, and mixtures thereof; methods of making and using the composition; and systems including the composition.

Abstract: A composition including a coated nanoparticle including a nanoparticle and a cross-linked carbohydrate-based coating and an ion selected from the group consisting of Li+, Na+, K+, Rb+, Cs+, Be2+, Mg2+, Sr2+, Ba2+, and mixtures thereof; methods of making and using the composition; and systems including the composition.

Abstract: A composition including a coated nanoparticle including a nanoparticle and a cross-linked carbohydrate-based coating and an ion selected from the group consisting of Li+, Na+, K+, Rb+, Cs+, Be2?, Mg2+, Ca2+, Sr2+, Ba2+, and mixtures thereof; methods of making and using the composition; and systems including the composition.

Abstract: A composition including a coated nanoparticle including a nanoparticle and a cross-linked carbohydrate-based coating and an ion selected from the group consisting of Li+, Na+, K+, Rb+, Cs+, Be2+, Mg2+, Sr2+, Ba2+, and mixtures thereof; methods of making and using the composition; and systems including the composition.

Abstract: A composition for stabilizing dispersed particles in an ionically charged solution is disclosed. The composition includes a carbonaceous substrate, the carbonaceous substrate operable to undergo a grafting-to approach for functionalization. The composition also includes a covalently bound stabilizing polymer, the covalently bound stabilizing polymer operable to be prepared as a diazonium salt for grafting to the carbonaceous substrate and a plurality of positively and negatively charged subgroups, the plurality of positively and negatively charged subgroups positioned within the covalently bound stabilizing polymer, where the plurality of positively and negatively charged subgroups are operable to stabilize the dispersed particles amongst positively and negatively charged ions within the ionically charged solution.

Abstract: Various embodiments are directed to a system for accessing a self-encrypting drive (SED) based on a blind challenge authentication response mechanism (BCRAM). An SED may be authenticated within a system, for example, upon resuming from a sleep state, based on a challenge generated within the SED, signed using a private key by a trusted execution environment (TEE) and authenticated using a corresponding public key within the SED.

Abstract: The present disclosure describes methods and systems for detecting a multi-modal tracer in a hydrocarbon reservoir. One method includes injecting a multi-modal tracer at a first location in a reservoir, wherein the multi-modal tracer mixes with subsurface fluid in the reservoir; collecting fluid samples at a second location in the reservoir; and analyzing the fluid samples to detect a presence of the multi-modal tracer in the fluid samples.

Abstract: Compositions including an aqueous colloidal dispersion of a nanomaterial and methods for preparing and using the same are described. The nanomaterial includes, disposed on a surface of the nanomaterial, a first coupling agent including silane and a functional group including an amino acid, and a second coupling agent including silane and a polymer with a molecular weight between 1,000 and 20,000.

Abstract: Tracing subterranean fluid flow includes providing a first polymeric tracer to a first injector, collecting a first aqueous sample from a first producer, and assessing the presence of the first polymeric tracer in the first aqueous sample. The first polymeric tracer includes a first polymer formed from at least a first monomer. The presence of the first polymeric tracer in the first aqueous sample is assessed by removing water from the first aqueous sample to yield a first dehydrated sample. pyrolyzing the first dehydrated sample to yield a first gaseous sample, and assessing the presence of a pyrolization product of the first polymer in the first gaseous sample. The presence of the pyrolization product of the first polymer in the first gaseous sample is indicative of the presence of a first subterranean flow pathway between the first injector location and the first producer location.

Abstract: Various embodiments are directed to a system for accessing a self-encrypting drive (SED) based on a blind challenge authentication response mechanism (BCRAM). An SED may be authenticated within a system, for example, upon resuming from a sleep state, based on a challenge generated within the SED, signed using a private key by a trusted execution environment (TEE) and authenticated using a corresponding public key within the SED.

Abstract: Provided are an apparatus, system, and method authenticating a system to access diagnostic interface in a storage device. The storage device includes a computer readable storage medium implemented to store data and a controller. The controller receives a request from the computer system to initiate a cryptographic nonce to access diagnostic interface in the storage device. The controller generates a nonce and returns to the computer system. Upon receiving an unlock request from the computer system to access the diagnostic interface including a signed nonce comprising at least the nonce encrypted with a private key by the authorized unlock system, the controller uses a public key that is a cryptographic pair with the private key to decrypt the signed nonce to determine whether to grant the computer system access to the diagnostic interface in the storage device.

Abstract: Generally, this disclosure provides systems, devices, methods and computer readable media for secure control of access control enablement and activation on self-encrypting storage devices. In some embodiments, the device may include a non-volatile memory (NVM) and a secure access control module. The secure access control module may include a command processor module configured to receive a request to enable access controls of the NVM from a user, and to enable the access controls. The secure access control module may also include a verification module configured to verify a physical presence of the user. The secure access control module may further include an encryption module to encrypt at least a portion of the NVM in response to an indication of success from the verification module.

Abstract: A composition including a coated nanoparticle including a nanoparticle and a cross-linked carbohydrate-based coating and an ion selected from the group consisting of Li+, Na+, K+, Rb+, Cs+, Be2?, Mg2+, Ca2+, Sr2+, Ba2+, and mixtures thereof; methods of making and using the composition; and systems including the composition.

Abstract: A composition including a coated nanoparticle and an ion, wherein the coated nanoparticle includes a nanoparticle, a linker, and a stabilizing group; methods of making and using the composition; and systems including the composition. The linker includes an anchoring group, a spacer, and a terminal group. The anchoring group is covalently bound to the nanoparticle and at least one of the terminal groups is covalently bound to at least one stabilizing group. A composition including a crosslinked-coated nanoparticle and an ion, wherein the crosslinked-coated nanoparticle includes a nanoparticle and a coating that includes a linker, a crosslinker, and a stabilizing group; methods of making and using the composition; and systems including the composition.

Abstract: A composition for stabilizing dispersed particles in an ionically charged solution is disclosed. The composition includes a carbonaceous substrate, the carbonaceous substrate operable to undergo a grafting-to approach for functionalization. The composition also includes a covalently bound stabilizing polymer, the covalently bound stabilizing polymer operable to be prepared as a diazonium salt for grafting to the carbonaceous substrate and a plurality of positively and negatively charged subgroups, the plurality of positively and negatively charged subgroups positioned within the covalently bound stabilizing polymer, where the plurality of positively and negatively charged subgroups are operable to stabilize the dispersed particles amongst positively and negatively charged ions within the ionically charged solution.

Abstract: Embodiments described herein relate to compositions, devices, and methods for the alignment of certain materials including liquid crystals. In some cases, a photoresponsive material include a moiety capable of undergoing a di-pi-methane rearrangement. Methods described herein may provide chemically and/or thermally stable alignment materials for use in a various technologies, including transistors, luminescent devices, and liquid crystal devices.