Results 131 to 140 of about 62,116 (300)

Method of variational calculation of influence of the propulsion plants of forestry machines upon the frozen and thawing soil grounds [PDF]

, 2019
The forests, which grow in the conditions of complete expansion of the perpetually frozen ground, are unique forests in accordance with their taxational characteristics, quality indicators of the felled timber, and the ecological functions, which these ...
Chemshikova, Y., Grigorev, I., Hertz, E. F., Ivanov, N., Knyazev, A., Kremleva, L., Kunickaya, O., Mueller, O., Rudov, S., Teterevleva, E.   +9 more
core  

What can lithics tell us about hominin technology's ‘primordial soup’? An origin of stone knapping via the emulation of Mother Nature

Archaeometry, EarlyView.
Abstract The use of stone hammers to produce sharp stone flakes—knapping—is thought to represent a significant stage in hominin technological evolution because it facilitated the exploitation of novel resources, including meat obtained from medium‐to‐large‐sized vertebrates. The invention of knapping may have occurred via an additive (i.e., cumulative)
Metin I. Eren, Stephen J. Lycett, Michelle R. Bebber, Alastair Key, Briggs Buchanan, Emma Finestone, Joseph Benson, Rebecca Biermann Gürbüz, Adela Cebeiro, Roman Garba, Anne Grunow, C. Owen Lovejoy, Danielle MacDonald, Erica Maletic, G. Logan Miller, Joseph D. Ortiz, Jonathan Paige, Justin Pargeter, Tomos Proffitt, Mary Ann Raghanti, Teal Riley, Jeffrey I. Rose, David M. Singer, Robert S. Walker   +23 more
wiley   +1 more source

Data-Efficient Excavation Force Estimation for Wheel Loaders

IEEE Access
Accurate prediction of excavation forces is critical for enabling autonomous operation and optimizing control strategies in earthmoving machinery. Conventional approaches often depend on extensive data collection or computationally expensive simulations ...
Armin Abdolmohammadi, Navid Mojahed, Shima Nazari, Bahram Ravani   +3 more
doaj   +1 more source

Applied mechanics [PDF]

Computerized simulation of Venus atmospheric entry by earth reentry, and test program on soil response to landing ...

core   +1 more source

Golden weapons and golden fetters: From the gold standard to the new geopolitics

The Economic History Review, EarlyView.
Abstract This paper explores the historical relationship between monetary regimes, security concerns, and geopolitical tensions, particularly focusing on the role of gold. Throughout history, monetary systems have been deeply intertwined with international state systems and security provisions.
Harold James
wiley   +1 more source

Effect of Soil Properties and Powertrain Configuration on the Energy Consumption of Wheeled Electric Agricultural Robots

Energies
Agricultural emissions can be significantly reduced with smart farming, which includes moving away from large conventional tractors to fleets of compact wheeled electric robots.
Klaus Kivekäs, Antti Lajunen
doaj   +1 more source

Material studies related to lunar surface exploration, volume 3 Final report, 6 Mar. 1967 - 30 Jun. 1968 [PDF]

Mechanical properties of lunar soils related to lunar ...
Carmichael, I. C., Frisch, J., Goodman, R. E., Heuze, F. E., Mitchell, J. K., Witherspoon, P. A.   +5 more
core   +1 more source

Government Financial Reporting: A Study of Nested Controversy

Financial Accountability &Management, EarlyView.
ABSTRACT There are two schools of thought on government financial reporting: one emanating from societal values and accountability to citizens; and one based on investment decisions and a business approach. There are staunch proponents of these different perspectives, which are rooted in economic thought and values.
Sheila Ellwood, Rhoda Brown
wiley   +1 more source

Military Leadership and International Peacekeeping: An Examination of the Experiences of Female Officers Through a Bourdieusian Framework

Gender, Work &Organization, EarlyView.
ABSTRACT This article provides insights into how Bourdieu's social theory can be used to explore the complex experiences of female military officers. It has been over 20 years since feminist scholars first extended Bourdieu's framework to include gender, arguing that women are often denied access to valued capital in organizations due to the gendered ...
Angela McGinn
wiley   +1 more source

Effects of Some Properties of Drive Tires Used in Horticultural Tractors on Tractive Performance

Journal of Agricultural Sciences, 2017
Many studies on tractive performance of tractor tires have been carried out to solve soil-wheel interaction problems in the last decades. The purpose of this study is to experimentally determine effects on tractive performance of radial and bias-ply ...
Kazım Çarman, Şerafettin Ekinci
doaj