Building large-scale, globally consistent maps is a challenging problem, made more difficult in environments with limited access, sparse features, or when using data collected by novice users. For such scenarios, where state-of-the-art mapping algorithms produce globally inconsistent maps, we introduce a systematic approach to incorporating sparse human corrections, which we term Human-in-the-L...

prolonged, this treatment leads to a considerable error in the DL value. In order to eliminate this error a correction factor of the inspiration time was newly introduced to obtain the effective inspiration time. The correction factor was a function of the ratio of the residual capacity to the total alveolar gas volume and the ratio of DL to the flow rate of inspiration. A nomogram was made for...

For activity quantification based on planar scintillation camera measurements, photon attenuation is an important factor that needs to be corrected for in a patientand organ-specific manner. One possibility for obtaining attenuation correction maps is to use X-ray CT scout images. Since the intensity of scout images is in relative numbers, their image values need to be multiplied by a factor to...

Shifted sinusoidal illumination patterns are useful for appearance capture because they simultaneously separate local and non-local reflections and allow the recovery of surface geometry. Here we show that the same illumination patterns can be used to estimate the local surface reflectance (BRDF) as well, provided that an appropriate correction factor is applied. We derive a closed-form express...

Abstract The cylindrical graphite cavity chambers are used for primary standard of air kerma rate of Co-60 and Cs-137. We measured wall attenuation correction factor (Kat) at several irradiation angles using extrapolation technique because of angular dependence. From these results, it can be seen that it is insufficient technique for evaluation of Kat. The Monte Carlo simulations were also done...

We review the potential limitations of the two current methodologies for evaluating the duration of action of antihypertensive therapy: the smoothness index (SI) and the trough : peak ratio (TP). We propose a simple correction factor for the SI. The correction factor prevents the SI from reaching erroneous high values in situations in which the reduction in blood pressure (BP) is inadequate but...

This application note is intended as an addendum to the Design Reference Manual DRM064 ([1]) and describes implementation of an average current mode control of Power Factor Correction (PFC) on MC9S12E128. The DRM064 deals with the design of a Single Phase On-Line UPS using an MC9S12E128. It includes control of a power factor correction (PFC), a DC/DC step up converter, a battery charger, and an...

Activated platelets release their granule content in a concentrated fashion at sites of injury. We examined whether ectopically expressed factor VIII in developing megakaryocytes would be stored in alpha-granules and whether its release from circulating platelets would effectively ameliorate bleeding in a factor VIIInull mice model. Using the proximal glycoprotein 1b alpha promoter to drive exp...

Hemolysis in ED (emergency department) patients is common due to difficult blood draws. Values of serum potassium (K) become falsely elevated secondary to release of intracellular contents. Objective: The aim of the study was to establish a correction factor for factitious elevated K in samples for de adult ED. Methods: We used samples from 125 adult ED patients, in which the 2nd sample was dra...

With the increasing demand for power from the ac line and more stringent limits for power quality, power factor correction has gained great attention in recent years. A variety of circuit topologies and control methods have been developed for the PFC application. International Standards in the area of compliance of a product’s AC mains current harmonics have forced that new power supply design ...