Results 51 to 60 of about 3,551,019 (296)

Homogenization in strength and durability analysis of reinforced tooth filling [PDF]

, 2002
An asymptotic homogenization procedure is employed to obtain effective elastic properties of the composite tooth filling, a homogenized macro– stress field and a first approximation to the micro-stress field, from properties of the components and applied
Mikhailov, SE, Orlik, J
core  

Evaluation of the stress singularities of plane V-notches in bonded dissimilar materials [PDF]

, 2008
According to the linear theory of elasticity, there exists a combination of different orders of stress singularity at a V-notch tip of bonded dissimilar materials. The singularity reflects a strong stress concentration near the sharp V-notches.
Ascher, Barsoum, Bogy, Carpenter, Carpinteri, Changzheng Cheng, Chen, Chue, Dali Ge, Delale, Fu, Gadi, Gladwell, Gross, Henshel, Hwu, Hwu, Jian, Jianqiao Ye, Labossiere, Li, Naman Recho, Niu, Pageau, Rzasnicki, Seweryn, Stern, Stroh, Sue, Tan, Ting, Ting, Wigger, Williams, Williams, Yosibash, Zhongrong Niu   +36 more
core   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

SPECIALIZED MAPPING OF CRUSTAL FAULT ZONES. PART 1: BASIC THEORETICAL CONCEPTS AND PRINCIPLES

Геодинамика и тектонофизика, 2015
Long-term studies of shear zones have included collection of data on fractures showing no indication of displacement which are termed as 'blank' fractures.
K. Zh. Seminsky
doaj   +1 more source

Residual stress characterization of single and triple-pass autogenously welded stainless steel pipes [PDF]

, 2016
Using neutron diffraction the components of the residual stress field have been determined in the region near a mid-length groove in two identical austenitic stainless pipes in which weld beads had been laid down.
Aloraier, Bouchard, Bouchard, Bouchard, D.J. Hughes, Edwards, Elmesalamy, Haigh, Hutchings, J.A. James, K. Ogawa, Kiyoshima, Kundu, M.E. Fitzpatrick, M.T. Hutchings, Muransky, Paddea, Pirling, R. Mizuno, R.D. Haigh, S. Okido, Skouras, Skouras, Smith, Smith, Withers, Woo   +26 more
core   +3 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

The evolution of the crustal stress state of the Catoca kimberlite pipe area (northeastern Angola)

Геодинамика и тектонофизика, 2018
This paper presents the first results of the geostructural and tectonophysical studies of the crustal stress state in the Catoca kimberlite pipe area at the southwestern flank of the Kasai Shield in the northeasternAngola. In the evolution of the crustal
O. V. Lunina, A. S. Gladkov, D. P. Gladkochub, F. João, M. A. Karpenko, J. T. Félix, D. A. Koshkarev, E. V. Sklyarov   +7 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Study on Braking Temperature and Stress Fields of Metro Wheel Tread Considering Wheel-Axle Interference Fit

Taiyuan Ligong Daxue xuebao
Purposes The stress on the metro wheel is complicated, which is not only influenced by the wheel-rail coupling force and the contact pressure induced by the axle-wheel interference fit, but also by the thermal load generated during braking.
SUN Xiaojuan, LI Yanghui, JIANG Lianyun, CHAI Ke, NI Chao   +4 more
doaj   +1 more source

The electrorheology of suspensions consisting of Na-Fluorohectorite synthetic clay particles in silicon oil

, 2010
Under application of an electric field greater than a triggering electric field $E_c \sim 0.4$ kV/mm, suspensions obtained by dispersing particles of the synthetic clay fluoro-hectorite in a silicon oil, aggregate into chain- and/or column-like ...
B. Schjelderupsen, Felici N., Hao T., J. O. Fossum, K. P. S. Parmar, Macosko C., Méheust Y., Y. Méheust   +7 more
core   +3 more sources