Results 161 to 170 of about 141,433 (299)

Simulation on Microscopic Damage of PDC Cutter During Conglomerate Cutting

open access: yesShiyou jixie
Conglomerate generally has complex pore structures and severe heterogeneity.Drilling by PDC bit in conglomerate usually exhibits low rock-breaking efficiency, and the rock-breaking process of PDC cutter can hardly be investigated through laboratory ...
Yang Hongyu   +4 more
doaj  

The Layout and Size of an Early Pre‐Pottery Neolithic B Small Settlement Revealed by Geophysical Prospection at Harbetsuvan Tepesi in Southeastern Anatolia

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT In Upper Mesopotamia, the transition from the Pre‐Pottery Neolithic A (PPNA) to Pre‐Pottery Neolithic B (PPNB) period, ca. 10 800–10 600 cal. BP, is marked by a series of changes in chipped stone industries, architectural forms, symbolic objects, regional distribution of settlements and long‐distance exchange networks among others.
Toshihiro Tada   +7 more
wiley   +1 more source

Understanding exam access arrangements in practice: Challenges and opportunities

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Secondary students with specific learning difficulties (SpLD) often face challenges with academic tasks, particularly with high‐stakes examinations. Exam access arrangements (EAA) are provided as reasonable adjustments to reduce disadvantage for students with SpLD.
Catherine Antalek   +2 more
wiley   +1 more source

Is the well‐known phrase ‘small is beautiful’ true of small transnational education institutions?

open access: yesBritish Educational Research Journal, EarlyView.
Abstract The purpose of this research is to consider the potential attractiveness of operating a small international branch campus (IBC). Drawing upon resource‐based and legitimacy theories, we examine the strengths, weaknesses, opportunities and threats associated with the business model that is based on having a small institution size.
Stephen Wilkins, Joe Hazzam
wiley   +1 more source

Marine silicon for biomedical sustainability

open access: yesBMEMat, EarlyView.
Schematic illustrating marine silicon for biomedical engineering. Abstract Despite momentous divergence from oceanic origin, human beings and marine organisms exhibit elemental homology through silicon utilization. Notably, silicon serves as a critical constituent in multiple biomedical processes.
Yahui Han   +3 more
wiley   +1 more source

The Effects of Changing Technology: The Impacts of a Changing Cost Structure on Land Tenure Arrangements in the Mississippi Delta, 1996 - 2004 [PDF]

open access: yes
Genetically modified (GM) cotton varieties have changed many aspects of cotton production in the United States. The advent of GM varieties has fueled the ongoing trend of increasing farm size and fewer farmers.
Anderson, John D.   +3 more
core   +1 more source

Highly efficient hard rock-breaking tool for mining machines

open access: yesIOP Conference Series: Earth and Environmental Science, 2019
BL Gerike, VI Klishin, PB Gerike
openaire   +1 more source

Tackling cancer stemness with nanotechnology in the era of precision medicine

open access: yesBMEMat, EarlyView.
Precise customization of nanoparticles (NPs) enables active targeting of cancer stem cells (CSCs), thereby improving drug delivery and therapeutic efficacy. NP‐based probing enhances CSC detection through imaging and liquid biopsy, whereas diverse therapeutic payloads improve therapeutic outcomes.
Shaolei Guo   +9 more
wiley   +1 more source

Bit-rock interface influence on the rock percussive breaking efficiency

open access: yes
The influence of representative BRI conditions (including rock chips/damage layer, confinement) on the rock breaking efficiency, under impact and in presence of WoB, will be ...
openaire   +1 more source

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