A pressure cell for sum frequency generation spectroscopy includes: a metal pressure chamber; a heating stage that heats a liquid sample; an ultrasonic stage that emulsifies the liquid sample; a chamber pump that pressurizes an interior of the metal pressure chamber; and a controller that controls the chamber pump, the ultrasonic stage, and the heating stage to control a pressure of the interior of the metal pressure chamber, an emulsification of the liquid sample, and a temperature of the liquid sample, respectively. The metal pressure chamber includes: a liquid sample holder that retains the liquid sample; a removable lid that seals against a base; a window in the removable lid; a sample inlet that flows the liquid sample from an exterior of the metal pressure chamber to the liquid sample holder at a predetermined flow rate; and a sample outlet.

A pressure cell for sum frequency generation spectroscopy includes: a metal pressure chamber; a heating stage that heats a liquid sample; an ultrasonic stage that emulsifies the liquid sample; a chamber pump that pressurizes an interior of the metal pressure chamber; and a controller that controls the chamber pump, the ultrasonic stage, and the heating stage to control a pressure of the interior of the metal pressure chamber, an emulsification of the liquid sample, and a temperature of the liquid sample, respectively. The metal pressure chamber includes: a liquid sample holder that retains the liquid sample; a removable lid that seals against a base; a window in the removable lid; a sample inlet that flows the liquid sample from an exterior of the metal pressure chamber to the liquid sample holder at a predetermined flow rate; and a sample outlet.

Systems and methods for controlling a heating Technologies for controlling a heating unit are disclosed. In embodiments, the systems and methods determine a heating unit target temperature based at least in part on a duty cycle of at least one thermostat. The systems and methods may then determine a simulated outdoor temperature corresponding to the heating unit target temperature, and a resistance value corresponding to the simulated outdoor temperature. The systems and methods may then cause a resistance signal including or indicative of the resistance value to be provided to an outdoor temperature input for the heating unit, e.g., to cause the heating unit to modulate to the heating unit target temperature.

Methods and apparatus for an autonomous stage-switching multi-stage cooling device are disclosed are disclosed. A disclosed example coolant distribution unit (CDU) includes an enclosure, an inlet and an outlet of the CDU to be fluidly coupled to a cooling block associated with a heat generating source, at least one sensor to measure a first temperature corresponding to the inlet and a second temperature corresponding to the outlet, and a plurality of valves to be controlled by a controller to control a flow of fluid from the inlet to at least one of an ambient cooler or a sub-ambient cooler based on: (i) a comparison of the first temperature to an ambient temperature and (ii) a comparison of the second temperature to a target temperature.

A programmable controller circuit that can be connected directly to the fan switch of any thermostat with a forced air heating and/or cooling system that includes a blower fan for circulating air throughout the home. The controller can be installed with minimal modifications to the existing wiring. The present invention increases the efficiency of the cooling system by evaporating condensate and extracting residual coolness from the thermal mass of the evaporator coils. The present invention can be programmed with a single button. A method of adapting additional fan run time based on .[.compressor run time.]. .Iadd.an AC compressor off time and an AC compressor on time.Iaddend..

A control method and a control system for temperature trajectory tracking are provided. The method includes: drawing a target temperature trajectory, discretizing the target temperature trajectory, and performing temperature trajectory control based on the discretized target temperature trajectory. The system includes a preset temperature trajectory processor for drawing a target temperature trajectory, a controlled object for characterizing an actual temperature, a platinum resistance sensor for detecting the actual temperature of the controlled object and inputting the actual temperature into a controller, and the controller for drawing an actual temperature trajectory, discretizing the target temperature trajectory, and operating a PID control program to complete temperature trajectory control. The traditional static constant temperature control can be realized, and close tracking of a preset temperature process trajectory in a second-level time level can be realized, thereby meeting requirements of application occasions with strict requirements on temperature change processes in a short time.

Systems and methods for characterization of retrofit opportunities are described. Some embodiments are directed to methods for determining the air leakage rate of a building, and accordingly, for determining suitability of sealing of air leaks to improve the energy efficiency of a building. The methods may comprise computing, using at least one computing device disposed remote from a building and based at least in part on heating, ventilation and air conditioning (HVAC) runtime data associated with the building, one or more thermal characteristics of the building. The HVAC runtime data may be computed based on data received from a thermostat or a meter, such as an electric or a gas meter. To isolate the impact of air leakage, subsets of the HVAC runtime data at time intervals selected to have substantially the same conditions, but different wind speeds, may be computed.

The present invention relates to a system with active learning and execution of user's preference functionalities for use in a garment. The present system includes a sensor module, an optional user input panel and/or interface, a printed circuit board, a power source and an output. In an event that a user of the present system voluntarily changes the output setting during the operation of the system, the system performs an active learning action to execute the output setting initiated by the user over a passive learning action triggered by a change in sensor data with respect to the changing environment. In other event, the present system performs passive learning action with respect to the changing environment and also any comparative data from similar user of a particular instance. The present invention also relates to a power management unit and how to use the same in a garment.

An improved method and system for controlling the powering-on of an electronic device when initially the internal temperature is below a safe threshold. The method and system can preheat the electronic device until it is at a safe temperature in which to safely power-on the electronic device. Alternatively or in addition, the method and system can alert a user if the temperature is below a threshold and proceed to power-on when the temperature is above the threshold.

An electrical power conversion apparatus is obtained which can accurately estimate a temperature of a rotating machine when a state of its cooling device for cooling it changes, and reliably carry out its protective operation, so that its failure to be brought about because of its high temperature state can be prevented. A control device of the apparatus comprises: a rotating machine losses calculator for calculating losses of the rotating machine by using its output status; a cooling-device state estimation device for estimating a state of the cooling device from a temperature detection value of a temperature detector for detecting a temperature of the rotating machine; and a rotating machine temperature calculation device for estimating a temperature at a predetermined position of the rotating machine, based on a rotating machine's losses calculation value of the rotating machine losses calculator and an estimation result of the cooling-device state estimation device.