Results 81 to 90 of about 2,447 (252)

125 years of exploration and research at Gough's Cave (Somerset, UK) 125 ans d'exploration et de recherches à Gough's Cave (Somerset, Royaume‐Uni)

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
Our understanding of the recolonization of northwest Europe in the period leading up to the Lateglacial Interstadial relies heavily on discoveries from Gough's Cave (Somerset, UK). Gough's Cave is the richest Late Upper Palaeolithic site in the British Isles, yielding an exceptional array of human remains, stone and organic artefacts, and butchered ...
Silvia M. Bello   +2 more
wiley   +1 more source

Computer simulation of a drilling bit feed rate regulator comprising of a dc motor

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
This paper considers the possibility of applying a drawworks DC motor and a magnetic powder brake as an active bit feed rate regulator. A dynamic mathemat-ical model of the DC motor is presented.
O. V. Nikulin, V. A. Shabanov
doaj   +1 more source

Drill string gas data [PDF]

open access: yes, 1998
Data and supporting documentation were compiled and analyzed for 26 cases of gas grab samples taken during waste-tank core sampling activities between September 1, 1995 and December 31, 1997. These cases were tested against specific criteria to reduce uncertainties associated with in-tank sampling location and conditions.
openaire   +2 more sources

And then there was us Et puis nous sommes apparus

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
In 1987, the academic conference ‘Origins and Dispersals of Modern Humans: Behavioural and Biological Perspectives’ was held in Cambridge, UK. Subsequently referred to as the ‘Human Revolution’ conference, this meeting brought together the most prominent academics working in the field of human origins, including archaeologists and palaeoanthropologists,
Emma E. Bird   +2 more
wiley   +1 more source

A Tribunal Only in Name: Anarchic Sensibilities at the International Tribunal on Crimes Against Women, 1976

open access: yesHistory, EarlyView.
Abstract In March 1976, around 2000 women from forty countries arrived at the Palais des Congrès in Brussels to participate in the first International Tribunal on Crimes Against Women. Explicitly positioning themselves against the United Nations‐led ‘International Year of the Woman’, the organizers and participants of the tribunal proclaimed a global ...
NIVEDITA JOON
wiley   +1 more source

On 3‐MMC: A Cathinone I Have Come to Know and Love

open access: yesAnthropology of Consciousness, EarlyView.
ABSTRACT This article attempts to complicate the mythology of a compound in a state of becoming. I will trace lightly its origins as a cultural disruptor and how I am implicated in this imperative. Introducing you to 3‐MMC will require multiple modes of storytelling and taking of liberties, drawing on literature reviews, practice‐based research, prose,
Carmen Ostrander
wiley   +1 more source

Research on Vibration Reduction and ROP Acceleration for Drilling in KOA Oilfield,Kazakhstan

open access: yesShiyou jixie, 2023
The KOA oilfield is located in the eastern margin of the Caspian Basin,Kazakhstan.The shallower Upper Permian of the oilfield is found with severe interbeding between sandstone and mudstone as well as interlayers of mudstone/slate and conglomerate.The ...
Wang Jianning   +4 more
doaj  

Validation of Aortic Blood Flow Simulations During Extracorporeal Circulation Using Phase Contrast Magnetic Resonance Imaging

open access: yesArtificial Organs, EarlyView.
This is the first study assessing in vivo blood flow profiles during extracorporeal circulation (ECC) scenarios. Magnetic resonance imaging data served for the calibration of computational fluid dynamics algorithms, enabling accurate replication of the hemodynamic conditions.
Anna Kathrin Assmann   +9 more
wiley   +1 more source

Neural Networks and Multivariate Analysis Based on Geochemical Data to Determine Stone Provenance From Ancient Calabrian Quarries (Southern Italy)

open access: yesArchaeometry, EarlyView.
ABSTRACT This study shows an innovative approach to determine the origin of some Calabrian rocks quarried used in ancient times. Twenty‐five quarries, distributed in all the Calabrian provinces (Southern Italy), were studied and sampled. Ten samples were taken from each quarry, for a total of 250 samples.
Domenico Miriello   +5 more
wiley   +1 more source

Dynamic Characteristics of Horizontal Drilling with Flexible Drill String Based on ABAQUS Explicit Dynamics

open access: yesShiyou jixie
During the drilling of ultrashort-radius radial horizontal well with flexible drill string, the vertical shift of wellbore trajectory affects the encountering rate of target points.
Liu Xin Huang Zhongwei Wu Xiaoguang Li Gensheng Shi Huaizhong Wang Jiarui Wang Minghao   +6 more
doaj   +3 more sources

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