Abstract: A cryptographic device may include a cryptographic module and a communications module removably coupled thereto. The cryptographic module may include a first housing, a user network interface carried by the first housing, a cryptographic processor carried by the first housing and coupled to the user network interface, and a first connector carried by the first housing and coupled to the cryptographic processor. Furthermore, the communications module may include a second housing, a second connector carried by the second housing and being removably mateable with the first connector of the cryptographic module, and a network communications interface carried by the second housing and coupled to the second connector.

Abstract: A cryptographic device may include a cryptographic module and a communications module removably coupled thereto. The cryptographic module may include a first housing, a user Local Area Network (LAN) interface carried by the first housing, a cryptographic processor carried by the first housing and coupled to the user network interface, and a first connector carried by the first housing and coupled to the cryptographic processor. The communications module may include a second housing, a second connector carried by the second housing and being removably mateable with the first connector of the cryptographic module, and a network communications interface carried by the second housing and coupled to the second connector. The communications module may also include at least one logic device for cooperating with the cryptographic processor to determine a status of the communications module.

Abstract: A cryptographic device may include a cryptographic module and a communications module coupled thereto. The cryptographic module may include a user network interface, a host network processor coupled to the user network interface, and a cryptographic processor coupled to the host network processor. Additionally, the communications module may include a network communications interface coupled to the cryptographic processor. The host processor may generate cryptographic processor command packets for the cryptographic processor each having an address portion and a data portion, and it may also encapsulate command packets for the communications module in the data portions of the cryptographic processor command packets. The cryptographic processor may pass the communications module command packets to the without performing cryptographic processing thereon.

Abstract: A nanofluid for dissipating friction and heat during machining includes a fluidic vehicle and a plurality of lubricious nanoparticles dispersed throughout the fluidic vehicle. A method for reducing material transfer during machining processes includes reducing a temperature of at least a portion of an article to be machined at least one of prior to machining, during machining, or combinations thereof.

Abstract: A membrane separation is incorporated in a distillation cycle for efficient recovery of carbon dioxide from a stream containing natural gas along with carbon dioxide. Methane and carbon dioxide are separated from a feed stream in a first distillation to produce a process stream containing essentially methane and carbon dioxide and which is substantially free to ethane and higher molecular weight hydrocarbons. The process stream consisting essentially of methane and carbon dioxide is subjected to further distillation to produce a carbon dioxide-rich product stream and a process stream enriched in methane. The methane-enriched process stream is then passed to a membrane separation unit for separating methane and carbon dioxide and for producing a high purity methane product stream.