Results 81 to 90 of about 446,660 (328)

Brushless direct-current motor with stationary armature and field [PDF]

open access: yes, 1970
Electronically commutated dc motor has an active fixed field winding, and active fixed armature winding, and passive rotor. By use of brushless dc motor switching technique, motor provides continuous controllable and reversible torque without use of ...
Studer, P. A.
core   +1 more source

Closed Strings in Misner Space: Cosmological Production of Winding Strings

open access: yes, 2004
Misner space, also known as the Lorentzian orbifold $R^{1,1}/boost$, is one of the simplest examples of a cosmological singularity in string theory. In this work, the study of weakly coupled closed strings on this space is pursued in several directions: (
Berkooz, M., Pioline, B., Rozali, M.
core   +2 more sources

Winding Strings and Decay of D-Branes with Flux [PDF]

open access: yes, 2004
We study the boundary state associated with the decay of an unstable D-brane with uniform electric field, 1>e>0 in the string units. Compactifying the D-brane along the direction of the electric field, we find that the decay process is dominated by ...
A. Sen   +19 more
core   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

Web Winding Simulation and Wound Roll Stresses

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2010
A method for simulating a web winding process and for predicting wound roll stresses is proposed. The simulation model is two-dimensional and is composed of a web and a core.
Shigeo YANABE   +2 more
doaj   +1 more source

Unwinding relaxation dynamics of polymers [PDF]

open access: yes, 2013
The relaxation dynamics of a polymer wound around a fixed obstacle constitutes a fundamental instance of polymer with twist and torque and it is of relevance also for DNA denaturation dynamics.
Baiesi, Marco   +3 more
core   +4 more sources

Arbitrary Power Sharing Among Three-Phase Winding Sets of Multiphase Machines

open access: yesIEEE transactions on industrial electronics (1982. Print), 2018
The paper develops a technique for arbitrary power sharing among three-phase winding sets of a multiphase generator. Multiple d − q modeling is commonly used when independent control of the winding sets is required. This paper utilizes instead the vector
I. Zoric, Martin Jones, E. Levi
semanticscholar   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

Effects of nip roller on wound roll stress distribution and friction forces (Simulation of winding process considering web wrapping around nip roller)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
How a wound roll stress distribution will change when a nip roller is used during winding, and how a wrap angle around the nip roller will affect the roll stress distribution, these are investigated by simulating a winding process of two-dimensional ...
Shigeo YANABE, Shigeru NAGASAWA
doaj   +1 more source

Adjustable tension wire guide Patent [PDF]

open access: yes, 1967
Adjustable spiral wire winding ...
Dombrowski, H. G., Fischer, J. A.
core   +1 more source

Home - About - Disclaimer - Privacy