Results 111 to 120 of about 62,066 (264)

Experimental Stress Analysis of Mast–Counterweight Connection in a Modified Bucket-Wheel Excavator ERc 1400-30/7 Using Strain-Gauge Measurements

open access: yesMining
Background: Bucket-wheel excavators are critical assets in surface mining operations, where structural modifications to increase productivity must be validated through rigorous stress analysis to ensure operational safety.
Angela Maria Andreica   +2 more
doaj   +1 more source

The predatory behavior of ants: an impressive panoply of morphological adaptations

open access: yesInsect Science, EarlyView.
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean   +6 more
wiley   +1 more source

Institutional Distance and the Lived Experience of Actors in the Contemporary MNC: The Role of Positionality

open access: yesHuman Resource Management Journal, EarlyView.
ABSTRACT International human resource management (IHRM) and its larger sibling of international business (IB) have cross‐fertilized each other for many years. In this paper, we suggest that IHRM research's nuanced appreciation for new patterns of work, such as the increase in internationally integrated work processes and the emergence of global virtual
Johann Fortwengel   +4 more
wiley   +1 more source

Autonomous Locomotion Mode Transition Simulation of a Track-legged Quadruped Robot Step Negotiation

open access: yes, 2019
Multi-modal locomotion (e.g. terrestrial, aerial, and aquatic) is gaining increasing interest in robotics research as it improves the robots environmental adaptability, locomotion versatility, and operational flexibility.
Davies, K. A.   +2 more
core  

The Unintended Consequences of German Deterrence

open access: yesGlobal Policy, EarlyView.
ABSTRACT Germany's evolving deterrence posture boils down to continued participation in NATO nuclear sharing and an ambitious conventional rearmament program. Due to its non‐nuclear status and a result of decades of underinvestment, Germany prioritizes modern conventional weapons.
Ulrich Kühn
wiley   +1 more source

Rover technology for manned Mars missions [PDF]

open access: yes
A set of roving vehicle design requirements were postulated, corresponding to an idealized Mars transport vehicle operational scenario which could serve as a reference for a manned Mars mission.
Klein, Gail
core   +1 more source

Sowing time, false seedbed, row distance and mechanical weed control in organic winter wheat. [PDF]

open access: yes, 2000
In organic farming, mechanical weed control in winter wheat is often difficult to carry out in the fall, and may damage the crop, and weed harrowing in the spring is not effective against erect, tap-rooted weeds such as Tripleurospermum inodorum, Papaver
Rasmussen, Ilse A.
core  

Responsible Accountability? Multi‐Stakeholder Partnerships, Sustainable Development and Global Health

open access: yesGlobal Policy, EarlyView.
ABSTRACT Following the adoption of the 2030 Agenda for Sustainable Development, multi‐stakeholder partnerships (MSPs) have received renewed political attention. In several policy fields, MSPs have been criticized for a lack of accountability, resulting in efforts to redress this problem.
Matteo De Donà, Kristina Jönsson
wiley   +1 more source

Conceptualization and development of a semi-automatic vegetable transplanter prototype for small landholdings

open access: yesHeliyon
The process of seedling transplantation has significant importance within the realm of mechanical vegetable production in contemporary agriculture.
Ankit Sharma, Sanjay Khar
doaj   +1 more source

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