Results 101 to 110 of about 15,103 (307)

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Machinability of Cast Iron [PDF]

open access: yes, 1962
The machinability of cast iron was investigated from the standpoint of chip formation, tool life, and surface finish. Cutting mechanisms of cast iron were analysed based upon the flow region concept.
OKUSHIMA, Keiji   +3 more
core  

Evaluation of tool radius and machining parameters on cutting forces and surface roughness for AA 6082 aluminum alloy

open access: yesEuropean Mechanical Science
In this study, the affects of machining parameters on surface roughness and cutting forces during machining on a conventional lathe of AA 6082 aluminum alloy, which is widely utilized in automotive, manufacturing, and aerospace sectors, were investigated.
Ayşe Sena Yamaner, Bahar Sayın Kul
doaj   +1 more source

A context‐dependent modulatory role for eIF6 in acquired resistance to vemurafenib in melanoma

open access: yesFEBS Letters, EarlyView.
Acquired resistance to vemurafenib upregulates the translation factor eIF6 in melanoma cells. Silencing eIF6 in resistant cells reduces proliferation and partially restores drug sensitivity, whereas its overexpression increases sensitivity across melanoma lines regardless of BRAF status, via modulation of mTOR, S6K, and MAPK signaling.
George Kyriakopoulos   +9 more
wiley   +1 more source

Determination of Optimum Machining Parameters in Machining Rene 41 Superalloy Depending on Cutting Speed [PDF]

open access: yesE3S Web of Conferences
Rene 41 superalloy developed to withstand severe mechanical stresses and high temperature operation, and are widely used in aircraft and space vehicles, especially nickel-based ones, due to their high corrosion resistance.
Altin Abdullah   +3 more
doaj   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Mechanical Properties, Structure and Machinability of the H13 Tool Steel Produced by Material Extrusion

open access: yes
The study focuses on an evaluation of mechanical properties of the H13 tool steel manufactured by the material extrusion and further comparison with conventionally produced material.
Kasan, Radek   +5 more
core   +1 more source

Cutting temperature measurement and material machinability [PDF]

open access: yes, 2014
Cutting temperature is very important parameter of cutting process. Around 90% of heat generated during cutting process is transferred by sawdust, and the rest is transferred to the tool and work-piece.
Erić, Milan   +3 more
core   +1 more source

Machining characteristics of chromium-molybdenum steels: a case study of AISI 4140

open access: yesТехнічна інженерія
The article examines the machining characteristics of chromium-molybdenum steel AISI 4140, which is widely used in mechanical engineering due to its combination of high strength, wear resistance, and good machinability.
O.A. Shyshkova, M.H. Storchak
doaj   +1 more source

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