Abstract: Various example implementations are directed to circuits, apparatuses, and methods for providing virtual computing services. According to an example embodiment, an apparatus includes a computing server configured to provide a respective group of virtual servers for each of a plurality of accounts. Each of the accounts has a respective set of domain names and a respective settings file. The apparatus also includes a domain name server (DNS). The DNS is to dynamically map a respective set of domain names for each account to network addresses of the respective group of virtual servers, provided for the account. The DNS performs the mapping according to a mapping function indicated in the respective settings file of the account. The respective settings file of a first account accounts includes a mapping function that is different from a mapping function included in the respective settings file of a second account.

Abstract: The invention comprises a system for wet screening of oilwell proppant at the wellsite to provide a controlled and controllable amount of properly sized and screened proppant and fluid to a frac fluid blending system.

Abstract: Various example implementations are directed to circuits, apparatuses, and methods for providing virtual computing services. One example involves a set of computing servers communicatively coupled to the data storage device. The set of computer servers provide a respective virtual data center for each of a plurality of accounts, and the respective virtual data center for each account provides data-communications services specified in a respective settings file for the account. The virtual data center for at least one of the accounts includes a set of virtual desktops and a set of Cloud-based servers.

Abstract: A composite material precursor composition includes a matrix precursor, a first plurality of capsules including a liquid polymerizer, an activator, and an accelerant. The liquid polymerizer polymerizes when in contact with the activator, and the accelerant is an accelerant for the polymerization of the liquid polymerizer. The composite material precursor may be used to form a composite material that includes a solid polymer matrix, the first plurality of capsules in the solid polymer matrix, the activator in the solid polymer matrix, and the accelerant in the solid polymer matrix.

Abstract: A composite material precursor composition includes a matrix precursor, a first plurality of capsules including a liquid polymerizer, an activator, and an accelerant. The liquid polymerizer polymerizes when in contact with the activator, and the accelerant is an accelerant for the polymerization of the liquid polymerizer. The composite material precursor may be used to form a composite material that includes a solid polymer matrix, the first plurality of capsules in the solid polymer matrix, the activator in the solid polymer matrix, and the accelerant in the solid polymer matrix.