Results 81 to 90 of about 98,961 (305)

Backed pieces at Sharbithat SHA-10 (Sultanate of Oman)

open access: yesDocumenta Praehistorica
Sharbithat 10 (SHA-10) was discovered in 2017 during the first extensive survey of the northern part of the Dhofar region. Located on a vast mesa surrounded by wadi deltaic branches and abundant sources of flint, SHA-10 is characterized by flint ...
Maria Pia Maiorano   +3 more
doaj   +1 more source

Paleolithic aesthetics: Collecting colorful flint pebbles at Middle Pleistocene Qesem Cave, Israel

open access: yesJournal of Lithic Studies, 2018
This paper sheds light on the presence and significance of unusually small, colorful, unmodified, flint pebbles unearthed at Qesem Cave, a late Lower Paleolithic site in Israel.
Ella Assaf
doaj   +1 more source

Paradise Lost Revisited: GM and the UAW in Historical Perspective [PDF]

open access: yes, 2010
Purpose Analysis of historic relationship between GM and Union of Automobile Workers (UAW) from 1936 through the moment of bankruptcy of GM in 2009.
de Gier, Erik
core   +1 more source

Scalable Wheat Bran‐Algae Composites for Edible Electronics with Spray‐Coated Food‐Grade Conductive Inks

open access: yesAdvanced Electronic Materials, EarlyView.
A fully edible wheat bran–algae substrate is fabricated through scalable mould‐compression and spray‐coating, enabling robust, food‐grade platforms for sustainable electronics. A chitosan barrier improves water resistance and ink compatibility, while activated‐carbon conductive films form uniform electrodes with Ohmic behaviour.
Jaz Johari   +7 more
wiley   +1 more source

К интерпретации кремнеобработки Прекукутень - Триполье А / On the interpretation of lithic industry of Pre -Cucuteni - Trypillia A

open access: yesTyragetia, 2016
The paper considers some models for the explanation of variability of lithic complexes of the Late Neolithic (Early Aeneolithic) Pre-Cucuteni culture – the Early Trypillia.
Dmitrii Kiosak
doaj  

Combe-Cullier (Lacave, Lot) : une séquence exceptionnelle du Magdalénien au bord de la Dordogne lotoise

open access: yesGallia Préhistoire
The Combe-Cullier site (Lacave, Lot) is one of the few sites with a Magdalenian archaeosequence investigated using modern excavation methods. Its exceptional archaeological fill covers the entire Magdalenian period between 21,000 and 14,000 cal. BP.
Mathieu Langlais   +11 more
doaj   +1 more source

Koch Industries, Inc. Strategie Corporate Research Report [PDF]

open access: yes, 2006
[Excerpt] With its 2005 purchase of paper giant Georgia-Pacific, Koch Industries became the largest privately-held corporation in North America. Originally started as an oil production and refining firm in the first half of the twentieth century, Koch ...
Hannah, Robert Wesley   +4 more
core   +1 more source

Smart Exploration of Perovskite Photovoltaics: From AI Driven Discovery to Autonomous Laboratories

open access: yesAdvanced Energy Materials, EarlyView.
In this review, we summarize the fundamentals of AI in automated materials science, and review AI applications in perovskite solar cells. Then, we sum up recent progress in AI‐guided manufacturing optimization, and highlight AI‐driven high‐throughput and autonomous laboratories.
Wenning Chen   +4 more
wiley   +1 more source

Investigation of Moisture‐Induced Degradation Mechanisms and a Reviving Strategy for Sulfide‐Based Solid Electrolytes in All‐Solid‐State Composite Cathode

open access: yesAdvanced Energy Materials, EarlyView.
Moisture exposure induces the formation of reductive solid phases on argyrodite Li6PS5Cl, which destabilize Ni‐rich cathodes by extracting lattice oxygen and inducing surface reconstruction. A brief oxygen‐assisted annealing treatment quenches these reductive phases, restores interfacial stability, and enables effective regeneration and reuse of ...
Yujeong Hwang   +5 more
wiley   +1 more source

L’exploitation des roches volcaniques et métamorphiques dans le Néolithique récent du sud de la plaine du Rhin supérieur (cultures de Michelsberg et de Munzingen) : l’exemple de l’industrie taillée en rhyolite du Nideck (Bas-Rhin)

open access: yesRevue Archéologique de l’Est, 2015
The existence of a knapped stone industry using several volcanic and metamorphic rocks during the Late Neolithic south of the Upper Rhine plain (first half of the 4th millennium), in particular in Basse Alsace (Michelsberg and Munzingen cultures), has ...
Philippe LEFRANC   +2 more
doaj   +1 more source

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