We study star formation rates (SFR) and stellar masses in bulges of nearby disk galaxies. For this we construct a new SFR indicator that linearly combines data from Spitzer Space Telescope (SST) and The Galaxy Evolution Explorer (GALEX). All bulges are found to be forming stars irrespective of bulge type (pseudobulge or classical bulge). At present day SFR the median pseudobulge could have grow...

Computer software plays an important role in the implementation of Solid Freeform Fabrication (SFF) technologies. This paper describes a software testbed for processing part geometry for a particular SFF technology, selective laser sintering (SLS), that is built around the separation of the slicing and rasterization operations to accommodate geometric information from a variety of sources. The ...

The paper discusses a case study concerning the functional safety assessment based on the evaluation of the Safe Failure Fraction (SFF) for a complex system. Being such evaluation made according to IEC61508 standard, the paper focused on some related ambiguities. The paper is structured in two phases. First, a reliability prediction of each component of the system is implemented and then a Fail...

From a three-dimensional computer graphic model, Solid Freeform Fabrication produces solid objects directly without special tooling and human handling. In order to increas process productivity and accuracy, a time-efficient laser tracking control technique is needed. Based on the minimum time optimal control solution, the desired laser scanning control system is designed and implemented. To obt...

The Sodium-cooled fast reactor (SFR) features a closed fuel cycle for efficient conversion of fertile uranium and management of minor actinides. A full actinide-recycle fuel cycle is envisioned with two major options: One involves intermediatesized (150 to 500 MWe) sodium-cooled fast reactors with uranium-plutonium-minor-actinidezirconium metal alloy fuel, supported by a fuel cycle based on pyr...

Galaxy formation models are now able to reproduce observed relations such as the relation between galaxies’ star formation rates (SFRs) and stellar masses (M∗) and the stellar-mass– halo-mass relation. We demonstrate that comparisons of the short-time-scale variability in galaxy SFRs with observational data provide an additional useful constraint on the physics of galaxy formation feedback. We ...

A planar sectoral antenna is presented, optimized for highly precise impulse-radio ultrawideband (IR-UWB) indoor localization with minimal range estimation biasing. By judiciously combining two inverted-F elements into one footprint, a large half-power beamwidth (HPBW) obtained in the [3.2448-4.7424] GHz band, thereby covering channels 1-4 of IEEE 802.15.4a-2011 standard. Through system-level o...

Spitzer-MIPS 24 μm observations and ground-based optical imaging and spectroscopy of the rich galaxy cluster Abell 851 at z = 0.41 are used to derive and compare star formation rates from the mid-IR 24 μm and from [O II]λλ3727 emission. Many cluster galaxies have SFR(24 μm) /SFR([O II] ) ≫ 1, indicative of star formation in regions highly obscured by dust. We focus on the substantial minority o...

OBJECTIVE To develop a user friendly system (S.T.O.N.E. Score) to quantify and describe stone characteristics provided by computed axial tomography scan to predict ureteroscopy outcomes and to evaluate the characteristics that are thought to affect stone free rates. MATERIALS AND METHODS The S.T.O.N.E. score consists of 5 stone characteristics: (S) ize, (T)opography (location of stone), (O)bs...

A bstract In this work, we investigate the quantum chaos in various $$ T\overline{T} T ¯ -deformed SYK models with finite N , including 4 supersymmetric and 2 models. We numerically study evolution of spectral form factor (SFF), out-of-time ordered correlator (OTOC), ...