Results 61 to 70 of about 484,909 (306)

Experimental and Numerical Investigations of Deep Drawability of AA1200 [PDF]

, 2016
The ability of a sheet metal to be formed in a given process without failure is known as formability. Formability is a measure of the amount of deformation a material can withstand prior to fracture or excessive thinning. Forming Limit Diagram (FLD) is a
Ahlawat, A. (Amit), Gautam, M. V. (Mr), Jain, S. (Sumit), Kumar, M. (Manoj)   +3 more
core  

An in-plane tensile test for rheological and formability identification : comparison between experimental and numerical FLC

, 2011
International audienceBoth accurate constitutive laws and formability limits of materials are essential for a numerical optimization of sheet forming processes. To identify these behaviors, experimental databases are needed. In this work, experiments are
Guines, Dominique, Leotoing, Lionel, Ragneau, Eric   +2 more
core   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Mapping accretion and its variability in the young open cluster NGC 2264: a study based on u-band photometry [PDF]

, 2014
We aim at characterizing the accretion properties of several hundred members of the star-forming cluster NGC 2264 (3 Myr). We performed a deep u,g,r,i mapping and a simultaneous u+r monitoring of the region with CFHT/MegaCam in order to directly probe ...
Alencar, Silvia H. P., Bouvier, Jérôme, Cody, Ann Marie, Cuillandre, Jean-Charles, Flaccomio, Ettore, Irwin, Jonathan, Micela, Giuseppina, Peres, Giovanni, Sousa, Alana P., Stauffer, John R., Teixeira, Paula S., Venuti, Laura   +11 more
core   +4 more sources

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

The methanol lines and hot core of OMC2-FIR4, an intermediate-mass protostar, with Herschel/HIFI [PDF]

, 2010
In contrast with numerous studies on the physical and chemical structure of low- and high-mass protostars, much less is known about their intermediate-mass counterparts, a class of objects that could help to elucidate the mechanisms of star formation on ...
Bell, T., Blake, G. A., Boogert, A., Kama, M., Lis, D., Lord, S., Phillips, T. G.   +6 more
core  

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

STUDY THE EFFECTS OF PRESTRAINS IN UNIAXIAL TENSION ON THE FORMING LIMIT DIAGRAM OF ALUMINUM ALLOY SHEETS(2024 T3)

Tikrit Journal of Engineering Sciences, 2015
          The strain path for sheet metal may be changed during forming , this may be affect the forming limit curve (FLC) . In this work the FLC before and after prestraining was determined for aluminum alloy (2024 T3) to study the effect of this type ...
Waleed J. Ali, Thaer F. Ahmed
doaj  

The Spectroscopically Determined Substellar Mass Function of the Orion Nebula Cluster [PDF]

, 2004
We present a spectroscopic study of candidate brown dwarf members of the Orion Nebula Cluster (ONC). We obtained new J- and/or K-band spectra of ~100 objects within the ONC which are expected to be substellar based on their K,(H-K) magnitudes and colors.
Baraffe I., Brown A. G. A., Catherine L. Slesnick, John M. Carpenter, Lynne A. Hillenbrand   +4 more
core   +5 more sources