Results 101 to 110 of about 54,868 (267)

Use of the Algorithm of Multi-Scale Integral Invariant in the Study of Amphora Stamps

open access: yesАрхеология евразийских степей
When studying epigraphic monuments, including amphoric stamps, the task of reading and informative publication of inscriptions of poor preservation often arises.
Yury M. Svoiskiy   +4 more
doaj   +1 more source

Histria. Timbres amphoriques inédits du secteur Basilica Pârvan (I) [PDF]

open access: yesPeuce, 2018
Our paper deals with a number of amphora stamps (from Rhodos, Sinope and the Tauric Chersonesus) discovered during the excavation campaigns at the Pârvan Basilica in Histria (all unpublished), as well as with a few new amphora stamps from previous ...
Alexandra LIȚU, Mircea ANGELESCU
doaj  

An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

open access: yesAdvanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez   +9 more
wiley   +1 more source

ATP‐Mediated Bidirectional Communication Between Natural and Artificial Cells for Controlled Bioreactions

open access: yesAdvanced Functional Materials, EarlyView.
Establishment of bidirectional communication behavior between natural and artificial cells. The first type of communication from natural dendritic cells to artificial polymeric cells was achieved via ATP release after cell lysis. The released ATP was taken up via gated UV‐controlled permeability increase of the polymeric membrane for performing ...
Ilona Kalte   +6 more
wiley   +1 more source

Two imperforate stamp proofs for stamps

open access: yes, 1972
The surprise for me in these two proof-sheets lies in the little note in the bottom corner: "Imprimerie des Timbres-Poste - France." Does France print Niger's stamps? These two proofs are as good a printing of the stamps as I have seen.

core  

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

open access: yesAdvanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding   +14 more
wiley   +1 more source

"Marquette Explorer" postage stamps, 1968

open access: yes, 1968
Block of four "Marquette Explorer" six-cent stamps. The stamp depicts Père Jacques Marquette and Louis Joliet in a canoe during their 1673 Mississippi River expedition.
United States Postal Service
core  

Graded Metallopolymer Structures with Shape‐Memory Abilities via DLP‐Based 3D‐Printing

open access: yesAdvanced Functional Materials, EarlyView.
This study presents the digital light processing (DLP) based 3D printing of graded metallopolymers featuring shape‐memory abilities. The permanent shape can be recovered in two distinct steps with excellent rates. The obtained graded prints range from simple rod‐like structures to complex hollow materials.
Michael Klein   +6 more
wiley   +1 more source

Three individual stamps issued by the Republic of Niger

open access: yes, 1972
I had earlier found these three stamps in three more unusual forms: imperforates, proofs, and first day issue envelopes. Now, at last, I have found good specimens of the three stamps themselves.Three individual stamps issued by the Republic of Niger. 25F,

core  

An Adaptive Inhibitory WSe2 Transistor for Retinomorphic In‐Sensor Image Processing

open access: yesAdvanced Functional Materials, EarlyView.
Conventional retinomorphic devices typically require deliberate gate‐bias tuning for each illumination condition. In this paper, we demonstrate an adaptive inhibitory WSe2 transistor that uses photo‐induced regime shift between the subthreshold and accumulation modes to achieve decision‐free, intensity‐adaptive image processing within a single pixel ...
Juhwan Baek   +12 more
wiley   +1 more source

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