An analog circuit for solving optimization algorithms comprises three voltage controlled current sources and three capacitors, operatively coupled in parallel to the three voltage controlled current sources, respectively. The circuit further comprises a first inductor, operatively coupled in series between a first pair of the capacitors and the voltage controller current sources and a second pair of the capacitors and the voltage controller current sources. The circuit further comprises a second inductor, operatively coupled in series between the second pair of the capacitors and the voltage controller current sources and a third pair of the capacitors and the voltage controller current sources.

An analog circuit design is described that solves Linear Programming (LP) or Quadratic Programming (QP) problems.

An analog circuit design is described that solves Linear Programming (LP) or Quadratic Programming (QP) problems.

A method of controlling an electricity production station including at least one renewable energy source and an energy accumulation system, allowing an operator to commit, at an electrical distribution network manager, to a power profile P.sub.G that the station will be able to deliver over a forthcoming time period. The declared power profile must, furthermore, comply with constraints imposed by the manager of the electricity distribution network. Non-compliance with this commitment may be subject to penalties. It is then incumbent on the operator to best optimize the method of controlling the electricity production station so as to maximize the electrical power fed into the network, while complying, in so far as possible, over a certain tolerance range, with the power profile commitment P.sub.G.

A method of controlling an electricity production station including at least one renewable energy source and an energy accumulation system, allowing an operator to commit, at an electrical distribution network manager, to a power profile P.sub.G that the station will be able to deliver over a forthcoming time period. The declared power profile must, furthermore, comply with constraints imposed by the manager of the electricity distribution network. Non-compliance with this commitment may be subject to penalties. It is then incumbent on the operator to best optimize the method of controlling the electricity production station so as to maximize the electrical power fed into the network, while complying, in so far as possible, over a certain tolerance range, with the power profile commitment P.sub.G.

A system for facilitating an enhanced k-SAT solver is provided. The system can include a set of analog content addressable memory (aCAM) modules that can represent an expression in a conjunctive normal form (CNF), wherein a respective aCAM module corresponds to a clause of the expression. The system can also include a set of data lines that can provide input candidate values to the set of aCAM modules. A controller of the system can program the set of aCAM modules with respective analog values to represent the expression. The system can also include sensing logic block to determine a distance of a current solution from a target solution based on a combination of respective outputs from the set of aCAM modules. The controller can then iteratively modify an input value for a subset of data lines until the current solution converges based on a convergence condition.

A non-Boolean analog system includes a first Mott memristor having a first value of a characteristic, and a second Mott memristor having a second value of the characteristic different than the first value. The system includes a resistance in series with the first and second Mott memristors to form a network having a capacitance and that is operable as a relaxation oscillator. Responsive to electrical excitation, a temperature of the network operating an environment including ambient thermal noise settles at an equilibrium corresponding to a global minimum that is a maximally optimal global solution to a global optimization problem to which the network corresponds.

A system and method handles one or more pumping units in an out-of-balance condition. Sensing equipment monitors operating parameters related to balance of each of the one or more pumping units. Processing equipment determines the out-of-balance condition in at least one of the one or more pumping units based on the monitored operating parameters. A first correction to a counterbalance parameter of the at least one pumping unit can be calculated, such as a new position or weight of the counterbalance, so the out-of-balance condition can be corrected by implementing the new position or weight at the at least one pumping unit. A second correction to a stroke parameter of the at least one pumping unit can be calculated, such as a new stroke rate or pattern, so operation of the pumping unit can be maintained despite the out-of-balance condition.

A system and method handles one or more pumping units in an out-of-balance condition. Sensing equipment monitors operating parameters related to balance of each of the one or more pumping units. Processing equipment determines the out-of-balance condition in at least one of the one or more pumping units based on the monitored operating parameters. A first correction to a counterbalance parameter of the at least one pumping unit can be calculated, such as a new position or weight of the counterbalance, so the out-of-balance condition can be corrected by implementing the new position or weight at the at least one pumping unit. A second correction to a stroke parameter of the at least one pumping unit can be calculated, such as a new stroke rate or pattern, so operation of the pumping unit can be maintained despite the out-of-balance condition.

Methods and systems for associating a mobile station subscriber with at least one application or service are provided. The subscriber is provided with a subscriber identity module (SIM) identifier, which identities a SIM associated with the subscriber. The SIM identifier is bound to the application or service. The SIM identifier and the application or service are registered with a home location register (HLR) to bind the SIM identifier to the application or service. If the SIM is a virtual SIM, the provider of an application or service may cover the data costs associated with the use of that application or service.