Results 41 to 50 of about 900,172 (360)
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Journal of Harbin University of Science and Technology, 2019 In order to study the influence of tool vibration on the distribution characteristics of processing surface topography along spindle direction in turning largepitch thread, the experiment of turning external thread with pitch 16mm was conducted to obtain
JIANG Bin, ZHANG Fang, LI Zhe
doaj +1 more source
Cold machining of high density tungsten and other materials [PDF]
, 1969 Cold machining process, which uses a sub-zero refrigerated cutting fluid, is used for machining refractory or reactive metals and alloys.
Ziegelmeier, P.
core +1 more source
Design of Lightweight Cutting Tools
International Journal of Automation Technology, 2020 Taking into account the growing demand for sophisticated cutting tools in terms of their performance, new approaches, besides the development of the tool’s cutting edge, have to be investigated and validated by physical tests. In this study, methods of topology optimization and hybrid design are adopted for cutting tools.
Andreas Häusler +3 more
openaire +1 more source
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source
Grinding efficiency improvement of hydraulic cylinders parts for mining equipment
E3S Web of Conferences, 2017 The aim of the article is to find out ways to improve parts treatment and components of mining equipment on the example of hydraulic cylinders parts, used as pillars for mine roof supports, and other actuator mechanisms.
Korotkov Aleksandr +4 more
doaj +1 more source
Engineering Transactions, 2023 The synergistic effect of prepared tool edge and cutting parameters in hard whirling is still unclear, limiting its application in producing large precision ball screws.
Shuquan SONG +6 more
doaj +1 more source
Surrogate modelling for reliability assessment of cutting tools [PDF]
, 2013 Currently, cutting tool life for machining operations is correlated to process parameters through the widely applied Taylor functions. The latter are valuable expressions in established practice however their generalised nature does not allow accurate ...
Kolios, Athanasios +1 more
core
On Measurement and Interpretation of Toughness Behaviour of Carbide Tools [PDF]
, 1981 The actual significance of any definition of toughness behaviour of carbide tools depends on the existence of an interrelation between the quality as defined and the occurrence of chipping and premature failure in cutting.
Kals, H.J.J.
core +2 more sources
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source