scholarly journals Code development for the calculations of time-dependent multimode oscillations in the cavity of the future high-power gyrotrons

2016 ◽  
Author(s):  
T. Numakura ◽  
T. Imai ◽  
T. Kariya ◽  
R. Minami ◽  
K. Tsumura ◽  
...  
Keyword(s):  
High Power ◽  
Time Dependent ◽  
The Future ◽  
Code Development

scholarly journals Code Development for Calculating Electron Beams in the Cavities of the Future High-Power Gyrotrons

2019 ◽  
Vol 14 (0) ◽  
pp. 2405052-2405052
Author(s):  
Tomoharu NUMAKURA ◽  
Tsuyoshi KARIYA ◽  
Ryutaro MINAMI ◽  
Maki OKADA ◽  
Toshitaka HOJO ◽  
...  
Keyword(s):  
High Power ◽  
Electron Beams ◽  
The Future ◽  
Code Development

Less Power, Greater Conflict

2018 ◽  
Vol 49 (1) ◽  
pp. 47-62 ◽  
Author(s):  
Petra C. Schmid
Keyword(s):  
Low Power ◽  
High Power ◽  
Goal Pursuit ◽  
Goal Conflict ◽  
Personal Goals ◽  
Multiple Goals ◽  
Objective Performance ◽  
The Future ◽  
The Way

Abstract. Power facilitates goal pursuit, but how does power affect the way people respond to conflict between their multiple goals? Our results showed that higher trait power was associated with reduced experience of conflict in scenarios describing multiple goals (Study 1) and between personal goals (Study 2). Moreover, manipulated low power increased individuals’ experience of goal conflict relative to high power and a control condition (Studies 3 and 4), with the consequence that they planned to invest less into the pursuit of their goals in the future. With its focus on multiple goals and individuals’ experiences during goal pursuit rather than objective performance, the present research uses new angles to examine power effects on goal pursuit.

Time-dependent 3D modeling of the thermal analysis of the high-power diode laser hardening process

2020 ◽  
Vol 128 ◽  
pp. 106216 ◽  
Author(s):  
Saeed Talesh Alikhani ◽  
Mohammad Kazemi Zahabi ◽  
Mohammad Javad Torkamany ◽  
Seyed Hasan Nabavi
Keyword(s):  
Thermal Analysis ◽  
Diode Laser ◽  
High Power ◽  
3D Modeling ◽  
Laser Hardening ◽  
Time Dependent ◽  
Hardening Process ◽  
Power Diode ◽  
High Power Diode Laser

scholarly journals Time dependent and temperature dependent properties of the forward voltage characteristic of InGaN high power LEDs

AIP Advances ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 035206
Author(s):  
P. L. Fulmek ◽  
P. Haumer ◽  
F. P. Wenzl ◽  
W. Nemitz ◽  
J. Nicolics
Keyword(s):  
High Power ◽  
Voltage Characteristic ◽  
Time Dependent ◽  
Temperature Dependent ◽  
Forward Voltage ◽  
Temperature Dependent Properties

scholarly journals Reconstructing the Scene: New Views of Supernovae and Progenitors from the SNSPOL Project

2016 ◽  
Vol 12 (S329) ◽  
pp. 54-58
Author(s):  
Jennifer L. Hoffman ◽  
G. Grant Williams ◽  
Douglas C. Leonard ◽  
Christopher Bilinski ◽  
Luc Dessart ◽  
...  
Keyword(s):  
Radiative Transfer ◽  
Electron Scattering ◽  
Time Dependent ◽  
Complex Velocity ◽  
Circumstellar Material ◽  
Radiative Transfer Models ◽  
The Future ◽  
Geometrical Information ◽  
Physical Phenomena ◽  
Over Time

AbstractBecause polarization encodes geometrical information about unresolved scattering regions, it provides a unique tool for analyzing the 3-D structures of supernovae (SNe) and their surroundings. SNe of all types exhibit time-dependent spectropolarimetric signatures produced primarily by electron scattering. These signatures reveal physical phenomena such as complex velocity structures, changing illumination patterns, and asymmetric morphologies within the ejecta and surrounding material. Interpreting changes in polarization over time yields unprecedentedly detailed information about supernovae, their progenitors, and their evolution.Begun in 2012, the SNSPOL Project continues to amass the largest database of time-dependent spectropolarimetric data on SNe. I present an overview of the project and its recent results. In the future, combining such data with interpretive radiative transfer models will further constrain explosion mechanisms and processes that shape SN ejecta, uncover new relationships among SN types, and probe the properties of progenitor winds and circumstellar material.

Epicyclic Gearing for Gas Turbine Main Propulsion

1976 ◽  
Author(s):  
D. E. Yates
Keyword(s):  
Gas Turbine ◽  
Significant Role ◽  
High Power ◽  
Bulk Carrier ◽  
Merchant Marine ◽  
Future Role ◽  
Definite Advantage ◽  
The Future ◽  
Basic Concepts

The success of epicyclic gears in marine main propulsion has been well established. Their small size and weight has led to their introduction in many types of vessel. Epicyclic gears were used in many of the very early naval gas turbine powered vessels and, indeed since then, nearly 250 gears have been supplied for use with a marinized version of the “Proteus” gas turbine. The construction of this and other gas turbine propulsion gears is discussed in some detail to illustrate the basic concepts and design of the gearing. Because of the difficulties in providing astern power in a gas turbine powered ship without the use of a C.P. propeller, there has been interest in the use of a high power reversing gear. Here epicyclic gearing shows a definite advantage over the equivalent alternatives and indeed was used in the naval vessels referred to earlier. Some of the parameters relating to large reversing epicyclic gears are described and the future role of reversing gears is discussed. The description of recently delivered merchant marine triple reduction epicyclic gears is given. The gears transmit 8200 kw from an industrial type of gas turbine and are each installed in a 45,000 tons bulk carrier. Epicyclic gears have played a significant role in the development of gas turbine ship’s propulsion and their future role is discussed in relation to present and projected requirements.

GROWTH OF SiC SUBSTRATES

2006 ◽  
Vol 16 (03) ◽  
pp. 751-777 ◽  
Author(s):  
ADRIAN POWELL ◽  
JASON JENNY ◽  
STEPHAN MULLER ◽  
H. McD. HOBGOOD ◽  
VALERI TSVETKOV ◽  
...  
Keyword(s):  
Emerging Markets ◽  
Epitaxial Growth ◽  
High Power ◽  
Significant Fraction ◽  
Current Status ◽  
Microwave Devices ◽  
World Production ◽  
Power Switching ◽  
The World ◽  
The Future

In recent years SiC has metamorphisized from an R&D based materials system to emerge as a key substrate technology for a significant fraction of the world production of green, blue and ultraviolet LEDs. Emerging markets for SiC homoepitaxy include high-power switching devices and microwave devices. Applications for heteroepitaxial GaN-based structures on SiC substrates include lasers and microwave devices. In this paper we review the properties of SiC, assess the current status of substrate and epitaxial growth, and outline our expectations for SiC in the future.

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