Results 51 to 60 of about 93,608 (260)

The effect of partial shading on the reliability of photovoltaic modules in the built-environment

EPJ Photovoltaics
Residential photovoltaic systems often experience partial shading from chimneys, trees or other structures, which can induce hot-spots in the modules. If the temperature and frequency of these hot-spots are high, the module's reliability and safety may ...
Özkalay Ebrar, Valoti Flavio, Caccivio Mauro, Virtuani Alessandro, Friesen Gabi, Ballif Christophe   +5 more
doaj   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Modeling Hot Spot Motor Vehicle Theft Crime in Relation to Landuse and Settlement Patterns

Forum Geografi, 2004
The crowd of Yogyakarta urban has impacted its surrounding area, including Depok sub district, which is indicated by the rising of physical development, for example education facilities and settlements.
Djaka Marwasta, Suharsono Suharsono
doaj  

A kinetic study of fusion burn waves in compressed deuterium–tritium and proton–boron plasmas

Frontiers in Physics
We present particle-in-cell simulations with Monte Carlo collisions of fusion burn waves in compressed deuterium–tritium and proton–boron plasmas. We study the energy balance in the one-dimensional expansion of a hot-spot by simulating Coulomb collisions,
Michael J. Lavell, Michael J. Lavell, Ayden J. Kish, Ayden J. Kish, Andrew T. Sexton, Andrew T. Sexton, Eugene S. Evans, Ibrahim Mohammad, Sara Gomez-Ramirez, Sara Gomez-Ramirez, William Scullin, Marcus Borscz, Marcus Borscz, Sergey Pikuz, Thomas A. Mehlhorn, Thomas A. Mehlhorn, Max Tabak, Greg Ainsworth, Adam B. Sefkow, Adam B. Sefkow, Adam B. Sefkow, Adam B. Sefkow   +21 more
doaj   +1 more source

Comparison of hot spot stress evaluation methods for welded structures

International Journal of Naval Architecture and Ocean Engineering, 2010
In this paper, different evaluation methods of Hot Spot Stresses (HSS) have been applied to four different welded structure details in order to compare them and to illustrate their differences.
Jae-Myung Lee, Jung-Kwan Seo, Myung-Hyun Kim, Sang-Beom Shin, Myung-Soo Han, June-Soo Park, Mahen Mahendran   +6 more
doaj   +1 more source

Interobserver Variability of Ki-67 Measurement in Breast Cancer [PDF]

Journal of Pathology and Translational Medicine, 2016
Background: As measurement of Ki-67 proliferation index is an important part of breast cancer diagnostics, we conducted a multicenter study to examine the degree of concordance in Ki-67 counting and to find factors that lead to its variability.
Yul Ri Chung, Min Hye Jang, So Yeon Park, Gyungyub Gong, Woo-Hee Jung,   +5 more
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Association of poly-purine/poly-pyrimidine sequences with meiotic recombination hot spots

BMC Genomics, 2006
Background Meiotic recombination events have been found to concentrate in 1–2.5 kilo base regions, but these recombination hot spots do not share a consensus sequence and why they occur at specific sites is not fully understood.
Pitt Joel PW, Bagshaw Andrew TM, Gemmell Neil J   +2 more
doaj   +1 more source