Results 11 to 20 of about 2,671,986 (314)

Atomic Force Microscope

open access: yesDefinitions, 2020
The scanning tunneling microscope is proposed as a method to measure forces as small as 10 N. As one application for this concept, we introduce a new type of microscope capable of investigating surfaces of insulators on an atomic scale.
Veeco Nanoman
semanticscholar   +1 more source

Social force model for pedestrian dynamics. [PDF]

open access: yesPhysical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 1995
It is suggested that the motion of pedestrians can be described as if they would be subject to ``social forces.'' These ``forces'' are not directly exerted by the pedestrians' personal environment, but they are a measure for the internal motivations of ...
D. Helbing, P. Molnár
semanticscholar   +1 more source

Study of milling process basics for the biocompatible PEEK material

open access: yesMaterials Research Express, 2020
Polyetheretherketone (PEEK) material has attracted attentions and studies in the medical field due to its excellent properties suitable for orthopedic, dental, and implant applications.
Yang Li   +5 more
doaj   +1 more source

Assessment of internal pressure effect, causing additional bending of the pipeline

open access: yesЗаписки Горного института, 2020
Article justifies accounting for internal pressure effect in the pipeline, causing additional bending of the pipeline. According to some scientists, there is an erroneously used concept of the equivalent longitudinal axial force (ELAF) Sx, which depends ...
Ramil N. BAKTIZIN   +3 more
doaj   +1 more source

Strength exercises influence on functional capacities in mountain biking [PDF]

open access: yesJournal of Social Sciences, 2019
Force in resistance regime is specific for those branches in which the student has to face a great resistance effort amplified not only by the distance size and its traversed duration, but also by the peculiarities of going onward, performance of ...
IONUȚ, Bogdan Mihnea
doaj   +1 more source

Kavramsal, Tarihsel ve Pratik Açıdan Dinden Dönme ve İnanç Özgürlüğü

open access: yesCumhuriyet İlahiyat Dergisi, 2023
Aydınlanma Çağı sonrasında dünyada yaşanan hızlı değişim, bilimsel ve teknolojik anlamda devrimsel yenilikler meydana getirdiği gibi düşünce bağlamında da önemli dönüşümlerin kapısını aralamıştır.
Rıza Korkmazgöz, Faruk Sancar
doaj   +1 more source

Sequence-of-tense and the features of finite tenses

open access: yesNordlyd: Tromsø University Working Papers on Language & Linguistics, 2015
Sequence-of-tense (SOT) is often described as a (past) tense verb form that does not correspond to a semantically interpretable tense. Since SOT clauses behave in other respects like finite clauses, the question arises as to whether the syntactic ...
Karen Zagona
doaj   +1 more source

Comparasion of Impact and Tensile Properties of High-Strength Steel

open access: yesMetals, 2018
Tensile and impact properties of API 5L X80 steel were investigated and compared in order to evaluate their relation. Yield and maximum forces under dynamic impact testing were obtained from force-displacement curves. Dynamic yield strength was estimated
Željko Alar, Davor Mandić
doaj   +1 more source

Screening for Lung Cancer: US Preventive Services Task Force Recommendation Statement.

open access: yesJournal of the American Medical Association (JAMA), 2021
Importance Lung cancer is the second most common cancer and the leading cause of cancer death in the US. In 2020, an estimated 228 820 persons were diagnosed with lung cancer, and 135 720 persons died of the disease.
A. Krist   +18 more
semanticscholar   +1 more source

Cortical Activity during a Highly-Trained Resistance Exercise Movement Emphasizing Force, Power or Volume

open access: yesBrain Sciences, 2012
Cortical activity is thought to reflect the biomechanical properties of movement (e.g., force or velocity of movement), but fatigue and movement familiarity are important factors that require additional consideration in electrophysiological research. The
William J. Kraemer   +6 more
doaj   +1 more source

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