Results 61 to 70 of about 6,631 (215)

Early Pliocene Varanus (Squamata, Varanidae) remains from Megalo Emvolon, Thessaloniki, Greece

open access: yesThe Anatomical Record, EarlyView.
The article describes new cranial and postcranial varanid material from Megalo Emvolon Lower Pliocene vertebrate fossil site near Thessaloniki. The fossils, likely representing a single individual, are referred to Varanus cf. marathonensis. Abstract This study describes new fossil varanid material from a recently discovered fossil spot (MVL site) at ...
Chara Drakopoulou   +3 more
wiley   +1 more source

Hot embossing of polypropylene micro-tubes into functional tubular components with controlled inner-pore sizes

open access: yesMATEC Web of Conferences, 2018
To meet ever-increasing demands on the micro-components for medical and non-medical applications, a new micro-shaping technology - “hot embossing of micro-tubes”, had been developed for the forming of polymeric tubular micro-components.
Zhao Jie, Qin Yi
doaj   +1 more source

Low-cost replication of self-organized sub-micron structures into polymer films

open access: yeseXPRESS Polymer Letters, 2015
In this paper, the results of exploiting self-organized sub-micron polystyrene (PS) wrinkle patterns possessing random orientation, in preparation of a nickel stamp for hot embossing purposes, are presented.
H. Stenberg   +5 more
doaj   +1 more source

A study of chevron type plate design on pressure drop and friction factor of brazed plate heat exchanger

open access: yesEnvironmental Progress &Sustainable Energy, EarlyView.
Abstract Brazed plate heat exchanger (BPHE) was analyzed using computational fluid dynamics (CFD) simulations by ANSYS Fluent to investigate the chevron‐patterned plates. The influence of geometric parameters, including corrugation pitch, depth, and angle was analyzed.
J. S. Huang, K. B. Then, X. W. Wang
wiley   +1 more source

Experimental analysis and numerical simulation of sintered micro-fluidic [PDF]

open access: yes, 2017
This paper investigates the use of numerical simulations to describe solid state diffusion of a sintering stage during a Powder Hot Embossing (PHE) process for micro-fluidic components.
Barriere, T., Gelin, J-C., Sahli, M.
core  

High‐performance heat‐resistant tactile sensor for intelligent sensing and safe operation

open access: yesFlexMat, EarlyView.
Abstract Tactile sensing in high‐temperature environments remains a critical challenge for robotic systems operating in industrial manufacturing, food processing, and other high‐temperature assembly operations. Herein, we report a heat‐resistant flexible tactile sensor with comprehensive high performance, featuring a hierarchical architecture ...
Yugang Chen   +8 more
wiley   +1 more source

Rapid fabrication of polymer microfluidic systems for the production of artificial lipid bilayers

open access: yes, 2005
A polymer microfluidic device has been fabricated using rapid prototyping techniques. The device was built up to allow the formation and subsequent investigation of artificial bilayer lipid membranes (BLMs).
Morgan, H, Sandison, M E
core   +1 more source

Gene turnover in the common ancestor of all C4 grasses

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Understanding how plants evolve more efficient photosynthesis is important in a warming world where improving crop productivity and resilience is a global priority. By generating the first reference genomes for an early‐diverging group of grasses called the Aristidoideae, we were able to reconstruct the genetic makeup of the last common ancestor of all
Lara Pereira   +6 more
wiley   +1 more source

Gradient-temperature hot-embossing for dense micropillar array fabrication on thick cyclo-olefin polymeric plates: An example of a microfluidic chromatography column fabrication

open access: yesMicro and Nano Engineering, 2019
The fabrication of dense and high aspect ratio pillar arrays is important for several applications. In particular polymeric microfluidic chromatography columns are of high importance for various biological, pharmaceutical and chemical separations.
Ioannis Kourmpetis   +6 more
doaj   +1 more source

Study of mechanical response in embossing of ceramic green substrate by micro-indentation [PDF]

open access: yes, 2008
Micro-indentation test with a micro flat-end cone indenter was employed to simulate micro embossing process and investigate the thermo-mechanical response of ceramic green substrates.
Liu, Y. C., Shan, X. -C.
core   +1 more source

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