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High Frequency InGaAs Nanowire MOSFETs

We present compact modeling, DC and RF characterization of lateral and vertical nanowire MOSFETs. Lateral tri-gate nanowire devices on InP substrates have demonstrated a maximum gm=2.95 mS/ μm at VDS=0.5 V, and fT/fmax=290/350 GHz. Vertical gate-all-around InAs wires integrated on Si substrates have demonstrated gm=1.35 mS/μm and fT/fmax=100/155 GHz. We also demonstrate a non- parabolic, ballistic

Conodonts from the Lower Ordovician of Morocco — Contributions to age and faunal diversity of the Fezouata Lagerstätte and peri-Gondwana biogeography

This study documents conodont faunas of the Fezouata Formation, recovered from the AZ-1 borehole at Adrar Zouggar Mountain and from outcrops near Zagora in south-eastern Morocco. The Fezouata Formation was deposited on the peri-Gondwanan shelf near the South Pole during Early Ordovician times. It is composed of mostly fine-grained siliciclastics and is well known for including beds displaying the

Reference model guided system design and implementation for interoperable environmental research infrastructures

Environmental research infrastructures (RIs) support their respective research communities by integrating large-scale sensor/observation networks with data curation services, analytical tools and common operational policies. These RIs are developed as pillars of intra-and interdisciplinary research, however comprehension of the complex, pathologically interconnected aspects of the Earth's ecosyste

Predictive monitoring of turn-on-turn insulation in single tooth coils

This work focuses on the investigation on both local and global dielectric properties for a random wound single tooth winding, which represents a segment of the in-field electrical machine used on an Hybrid Wheel Loader. Finite Element Analysis (FEA) is used to predict the temperature stress while loading and illustrate the influences of dielectric properties (i.e. conductivity and dielectric cons

Second-order constrained parametric proposals and sequential search-based structured prediction for semantic segmentation in RGB-D images

We focus on the problem of semantic segmentation based on RGB-D data, with emphasis on analyzing cluttered indoor scenes containing many visual categories and instances. Our approach is based on a parametric figureground intensity and depth-constrained proposal process that generates spatial layout hypotheses at multiple locations and scales in the image followed by a sequential inference algorith

Bipolar Monte Carlo simulation of hot carriers in III-N LEDs

We carry out bipolar Monte Carlo (MC) simulations of electron and hole transport in a multi-quantum well light-emitting diode with an electron-blocking layer. The MC simulation accounts for the most important interband recombination and intraband scattering processes and solves self-consistently for the non-quasiequilibrium transport. The fully bipolar MC simulator results in better convergence th

Analysis of MOOCs practices from the perspective of learner experiences and quality culture

This explanatory analysis of the relevant literature seeks to identify factors affecting quality in massive open online courses (MOOCs). The paper highlights sub-dimensions of quality in MOOCs using the ladder of analytical abstraction. Communication, trust, collaboration, inclusiveness, innovation, and commitment are identified as key elements in developing a quality culture in online education.

The SAGA so far : Reading the history of the Galaxy with asteroseismology

Asteroseismology has the capability of delivering stellar properties which would otherwise be inaccessible, such as radii, masses and thus ages of stars. When this information is coupled with classical determinations of stellar parameters, such as metallicities, effective temperatures and angular diameters, powerful new diagnostics for stellar and Galactic studies can be obtained. The ongoing Strö

Comparison of the Lift-Off Lengths Obtained by Simultaneous OH-LIF and OH∗ Chemiluminescence Imaging in an Optical Heavy-Duty Diesel Engine

The presence of OH radicals as a marker of the high temperature reaction region usually has been used to determine the lift-off length (LOL) in diesel engines. Both OH Laser Induced Fluorescence (LIF) and OH∗ chemiluminescence diagnostics have been widely used in optical engines for measuring the LOL. OH∗ chemiluminescence is radiation from OH being formed in the exited states (OH∗). As a conseque

High-Speed Particle Image Velocimetry Measurement of Partially Premixed Combustion (PPC) in a Light Duty Engine for Different Injection Strategies

It has been proven that partially premixed combustion (PPC) has the capability of high combustion efficiency with low soot and NOx emissions, which meet the requirements of increasingly restricted emission regulations. In order to obtain more homogenous combustion and longer ignition delay in PPC, different fuel injection strategies were employed which could affect the fuel air mixing and control

Automated Multi-Objective Control for Self-Adaptive Software Design

While software is becoming more complex everyday, the requirements on its behavior are not getting any easier to satisfy. An application should offer a certain quality of service, adapt to the current environmental conditions and withstand runtime variations that were simply unpredictable during the design phase. To tackle this complexity, control theory has been proposed as a technique for managi

Involvement of End Users in a Navigation Aid Design Project

This paper describes the involvement of end users in a project aimed to create a navigation aid for older persons who have memory decline, which affects navigation skills, and thus their independence. Interviews, focus groups with “stick man scenarios” and shorter usability tests seemed to work well. An extended test where the users themselves were expected to use the system independently was not

Perception of Highlight Disparity at a Distance in Consumer Head-Mounted Displays

Stereo rendering for 3D displays and for virtual reality headsets provide several visual cues, including convergence angle and high- light disparity. The human visual system interprets these cues to estimate surface properties of the displayed environment. Naïve stereo rendering effectively doubles the computational burden of image synthesis, and thus it is desirable to reuse as many computa- tion

Global leadership - sustaining classic managerialism

This chapter critically discusses the currently celebrated and seemingly successful trend of global leadership. We claim that part of the answer to why global leadership has become so successful lies in how it is framed and presented as an all-embracing and intuitively good discourse closely aligned with the traditional leader-centred view on leadership in general. While this makes the discourse o

Migratory common blackbirds have lower innate immune function during autumn migration than resident conspecifics

Animals need awell-functioning immune systemto protect themselves againstpathogens. The immune system, however, is costlyand resource trade-offs withother demands exist. For migratory animals several (not mutually exclusive)hypotheses exist. First, migrants reduce immune function to be able to allocateresources to migration. Second, migrants boost immune function to cope withmore and/or novel path

Physiological role of TNF in mucosal immunology : Regulation of macrophage/dendritic cell function

Intestinal mononuclear phagocytes, comprising macrophages (MΦs) and dendritic cells (DCs), play important roles in the generation and the regulation of immune responses to intestinal antigens, and alterations in the development and/or the function of these cells are thought to contribute to the pathogenesis of inflammatory bowel disease. In this review, we discuss the role of tumor necrosis factor