We present an indirect two-qubit parity meter in planar circuit quantum electrodynamics, realized by discrete interaction with an ancilla and a subsequent projective ancilla measurement with a dedicated, dispersively coupled resonator. Quantum process tomography and successful entanglement by measurement demonstrate that the meter is intrinsically quantum nondemolition. Separate interaction and...

The inversion of a composite governing equation for the estimation of a boundary heat flux from ultrasonic pulse data is presented. The time of flight of the ultrasonic pulse is temperature dependent and can be used to predict the boundary heat flux. Sensitivities of the approach are examined, results from fabricated data are presented, and example solutions are provided with actual ultrasonic ...

Hamidu, J.A., J.J.R. Feddes, C.A. Ouellette and G.M. Fasenko. 2010. Measurement of avian embryo respiration by an indirect calorimetric system. Canadian Biosystems Engineering/Le génie des biosystèmes au Canada. 52: 4.9 4.14. Accurate measurement of embryonic respiration can be used to determine the viability of the chicken embryo and the chick upon hatching. This measurement is based on both t...

BACKGROUND Accurate measurement of resting energy expenditure (REE) is helpful in determining the energy needs of critically ill patients requiring nutritional support. Currently, the most accurate clinical tool used to measure REE is indirect calorimetry, which is expensive, requires trained personnel, and has significant error at higher inspired oxygen concentrations. OBJECTIVE The purpose ...

SYSTEMIC arterial blood pressure* represents a force which is the result of cardiac output and peripheral vascular resistance. It is readily measured indirectly by a standard sphygmomanometer. Compared with intra-arterial measurements of blood pressure, the indirect method is imprecise. Nevertheless, it is known that properly measured indirect blood pressure readings in the upper ranges and wid...

We consider direct techniques for measuring network-internal delays that rely on network routers as measurement nodes, and indirect techniques that rely on end-to-end measurements and infer delay distributions on the common internal paths. The direct technique does not require any additional infrastructure support, and can thus be directly applied to the analysis of network performance and the ...

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Both direct and indirect psychophysical methods can be used to measure breathlessness. With indirect methods, detection thresholds can be defined. Direct methods are easier to apply and give more information than indirect methods. Direct methods include interval (partition) and ratio scales, which are easy to apply; both have advantages and disadvantages. The selection of scale depends largely ...

Consider a study in which the effect of a binary exposure on an outcome operates partly through a binary mediator but measurement of the mediator is nondifferentially misclassified. Suppose that an investigator wishes to estimate the direct and indirect effects of the exposure on the outcome. In this paper, the authors describe a mathematical correspondence between the empirical expressions for...