Results 81 to 90 of about 2,375,841 (354)

Innovative approaches for controlling the material flow in sheet-bulk metal forming processes

Manufacturing Review, 2016
Using sheet-bulk metal forming processes the application of bulk forming operations on sheet metals enables the manufacturing of functional components with local wall thickness variations.
Merklein Marion, Lechner Michael, Gröbel Daniel, Löffler Maria, Schneider Thomas, Schulte Robert, Hildenbrand Philipp   +6 more
doaj   +1 more source

Literature study report of plasticity induced anisotropic damage modeling for forming processes [PDF]

, 2009
A literature study report covering the topics; micromechanics of damage, continuum damage mechanics (gurson model and effective variable concept) and the dependence of damage on strain rate and ...
Niazi, M.S.
core   +1 more source

Hematopoietic (stem) cells—The elixir of life?

FEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo, Jonah Anderson, Emilie Dinh Vedrenne, Noël Yeh Martín, Jette Lengefeld   +4 more
wiley   +1 more source

Particle Ejection by Jetting and Related Effects in Impact Welding Processes

Metals, 2020
Collision welding processes are accompanied by the ejection of a metal jet, a cloud of particles (CoP), or both phenomena, respectively. The purpose of this study is to investigate the formation, the characteristics as well as the influence of the CoP on
Jörg Bellmann, Jörn Lueg-Althoff, Benedikt Niessen, Marcus Böhme, Eugen Schumacher, Eckhard Beyer, Christoph Leyens, A. Erman Tekkaya, Peter Groche, Martin Franz-Xaver Wagner, Stefan Böhm   +10 more
doaj   +1 more source

Vision-aided Monitoring and Control of Thermal Spray, Spray Forming, and Welding Processes [PDF]

, 1993
Vision is one of the most powerful forms of non-contact sensing for monitoring and control of manufacturing processes. However, processes involving an arc plasma or flame such as welding or thermal spraying pose particularly challenging problems to ...
Agapakis, John E., Bolstad, Jon
core   +1 more source

Nonthermal Emission from Star-Forming Galaxies

, 2013
The detections of high-energy gamma-ray emission from the nearby starburst galaxies M82 & NGC253, and other local group galaxies, broaden our knowledge of star-driven nonthermal processes and phenomena in non-AGN star-forming galaxies.
A.F.M. Moorwood, AL Roy, AR Bell, AS Wilson, BC Lacki, BC Lacki, BD Fields, C Ferrari, CL Carilli, DF Torres, DF Torres, DK Strickland, DK Strickland, DP Cox, E Domingo-Santamaría, ER Seaquist, F Mannucci, FS Tabatabaei, FS Tabatabaei, FW Stecker, G Helou, GE Romero, H Kühr, H.W.W. Spoon, I Lerche, I.V Moskalenko, I.V Moskalenko, J.-P. Lenain, JC Higdon, K Wilke, L Spinoglio, LJ Kewley, M Elmouttie, M Persic, M Persic, M Sasaki, MD Weinberg, O Goldshmidt, P Corral, R Beck, R Diehl, R Enomoto, R Schlickeiser, RA Chevalier, RC Kennicutt Jr, RF Haynes, RJ Protheroe, RM Baltrusaitis, S Bergh van den, SD Points, SE Woosley, SJ Petuchowski, T.A.D. Paglione, TA Thompson, U Klein, V Heesen, V Pavlidou, V Pavlidou, VN Zirakashvili, W Tucker, WR Webber, Y Rephaeli, Y Rephaeli, Y Rephaeli, Y Rephaeli, Y Rephaeli   +65 more
core   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Improvement of upsetting process of four-beam workpieces based on computerized and physical modeling [PDF]

FME Transactions, 2020
The method of upsetting of large ingots has been investigated in this work. The proposed method consists in upsetting of profiled workpieces with concave faces. An angle of the concave faces was 150°. A relative depth of the concave faces has been varied
Markov Oleg E., Kukhar Volodymyr V., Zlygoriev Vitalii N., Shapoval Alexander A., Khvashchynskyi Anton S., Zhytnikov Roman U.   +5 more
doaj  

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

FEBS 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, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Parameter sensitivity of metal forming processes

Computer Assisted Methods in Engineering and Science, 2023
The flow formulation for metal forming analysis based on a rigid-viscoplastic material model is considered. Specifically, sensitivity evaluation techniques are discussed for different solution variables with respect to variations in parameters entering ...
Horacio Javier Antunez, Michal Kleiber
doaj