Results 21 to 30 of about 4,915,083 (312)

Mineral-and-energy clusters of the Russian Аrctic and prospects for expanding the outer boundary of its continental shelf

open access: yesРуды и металлы, 2022
The project of organizing mineral-and-energy clusters with spatial conjugation of deposits of solid minerals (SM) and hydrocarbons (HC) localized on the continental margin and shelf of the Arctic zone of the Russian Federation is substantiated.
Alexander A. Kremenetsky   +3 more
doaj   +1 more source

A smart friction control strategy enabled by CO2 absorption and desorption

open access: yesScientific Reports, 2019
Intelligent control of friction is an attractive but challenging topic and it has rarely been investigated for full size engineering applications. In this work, it is instigated if it would be possible to adjust friction by controlling viscosity in a ...
Jing Hua   +4 more
doaj   +1 more source

ELEMENTS OF QUATERNIONS

open access: yesScience, 1881
n ...
Hardy, A. S., Christie, A. S.
openaire   +2 more sources

Towards Holistic System Models Including Domain-Specific Simulation Models Based on SysML

open access: yesSystems, 2021
In the face of the rapid growth in the scale and complexity of multidisciplinary systems, being able to develop reliable systems under ever-faster changing and more individual market requirements is becoming more and more challenging.
Yizhe Zhang   +4 more
doaj   +1 more source

CAD Representation of the Mullins Effect from the SEGE 80 Flexible Coupling Model

open access: yesEngineering Proceedings
A Mullins simulation was conducted to analyze the effects of loading and unloading of a flexible-type SEGE coupling with a nominal torque of Tnom=80 Nm and maximum torque of Tmax=120 Nm.
Stefan Tenev   +8 more
doaj   +1 more source

A Novel Reciprocating Tribometer for Friction and Wear Measurements with High Contact Pressure and Large Area Contact Configurations

open access: yesLubricants, 2021
There are many moving machine assemblies with conformal tribological contacts at very high contact pressures, e.g., sliding bearings, propeller shaft bearings and machine guideways.
Kim Berglund   +4 more
doaj   +1 more source

An Element Weakly Primary to Another Element [PDF]

open access: yesChinese Journal of Mathematics, 2013
We introduce the concept “An element weakly primary to another element” and using this concept we have generalized some result proved by Manjarekar and Chavan (2004). It is shown that if is a family of elements weakly primary to a in L, then is weakly primary to a.
C. S. Manjarekar, U. N. Kandale
openaire   +2 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan   +18 more
wiley   +1 more source

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