Results 61 to 70 of about 534,364 (333)

Prediction of Drilling Efficiency for Rotary Drilling Rig Based on an Improved Back Propagation Neural Network Algorithm

open access: yesMachines
Accurately predicting the drilling efficiency of rotary drilling is the key to achieving intelligent construction. The current types of principle analysis (based on traditional interactive experimental methods) and efficiency prediction (based on ...
Cunde Jia   +7 more
doaj   +1 more source

Parents’ Growth Mindsets and Home-Learning Activities: A Cross-Cultural Comparison of Danish and US Parents

open access: yesFrontiers in Psychology, 2020
Mindset is a term commonly used to represent an individual’s beliefs about the role of ability and effort in learning. In this study, we assessed parental mindset—ability mindset and effort mindset—for 497 parents in two countries (United States and ...
Laura M. Justice   +3 more
doaj   +1 more source

Risk assessment and «Safety culture» lifting devices [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2019
Load gripping devices are used in any lifting operation and are used to attach the load to the construction machine, in most cases, to the crane hook.
Prusov A.Yu.
doaj   +1 more source

Ecological connection between fish preference in the diet of Siberian cranes and their incubation period in tundra zone [PDF]

open access: yes, 2012
We researched the ecology of the third rarest crane species, Siberian crane, which breeds in northern-eastern Siberian tundra. Nesting in places near great lakes, this crane appears to be an indicator of the global warming processes that affect lake ...
Inga Bysykatova   +2 more
core   +1 more source

Titin Is Present in the Elastic Tethers That Connect Separating Anaphase Chromosomes in Crane‐Fly Spermatocytes

open access: yesCytoskeleton, EarlyView.
ABSTRACT Elastic tethers connect telomeres of separating chromosomes in anaphase of animal cells. Immunofluorescence staining of titin in crane‐fly spermatocytes, using 4 different antibodies, shows that the giant elastic protein titin seems to be a component of mitotic tethers: titin “strands” extend between separating chromosomes, connecting their ...
Demetra Economopoulos   +5 more
wiley   +1 more source

Beyond Symbolism: Examining the Impact of Sustainable Finance on Product Responsibility and the Moderating Role of Board Environmental Expertise—Evidence From UK Non‐Financial Firms

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Despite the growing emphasis on sustainable finance in today's corporate landscape, its impact on product responsibility remains underexplored, particularly the moderating role of board environmental expertise. This study addresses these gaps by examining non‐financial companies listed on the London Stock Exchange, chosen for the UK's ...
Bright Akwasi Gyamfi   +4 more
wiley   +1 more source

U.S. Export Controls on Technology Transfers [PDF]

open access: yes, 2001
Companies selling technology products abroad must be careful that they have complied with regulations imposed on the exportation of technology products. This is especially true for companies seeking to export encryption technology.
Crane, Matthew
core   +2 more sources

Trends in Landcover Suitability for Sandhill Cranes Wintering in the Central Valley of California

open access: yesBirds
The Central Valley of California provides critical wintering habitat for Sandhill Cranes (Antigone canadensis), which rely on wetlands, grasslands, and grain crops to meet their energetic needs.
Gary L. Ivey   +3 more
doaj   +1 more source

THE BAGOURIA BARRAGE 1281 AH / 1864 AD:AN ARCHAEOLOGICAL ARCHITECTURAL STUDY [PDF]

open access: yesJournal of the General Union of Arab Archaeologists, 2019
(En) The Bagouria Barrage is one of the most important establishments that were built in the field of irrigation engineering in the governorate of Menoufia during the reign of Khedive Ismail in 1281 AH/ 1864 AD.
Badr Abdelaziz Badr
doaj   +1 more source

Aerospace nickel-cadmium cell separator qualifications program [PDF]

open access: yes, 1986
The present space qualified nylon separator, Pellon 2505 ML, is no longer available for aerospace nickel-cadmium (NiCd) cells. As a result of this anticipated unavailability, a joint Government program between the Air Force Space Division and the Naval ...
Francis, R. W., Haag, R. L.
core   +1 more source

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