Results 51 to 60 of about 5,329,797 (199)

Production of hide and skin in Ethiopia; marketing opportunities and constraints: A review paper

open access: yesCogent Food & Agriculture, 2019
Ethiopia is believed to have the largest livestock population in Africa. Livestock subsector makes the major contribution to the overall economy. The livestock sector accounts for 19% of the GDP and generates 16–19% of the foreign exchange earnings of ...
Mohammed Adem
doaj   +1 more source

Situational Strength Cues from Social Sources at Work: Relative Importance and Mediated Effects

open access: yesFrontiers in Psychology, 2017
Situational strength is considered one of the most important situational forces at work because it can attenuate the personality–performance relationship.
Balca Alaybek   +5 more
doaj   +1 more source

Scheduling under Linear Constraints [PDF]

open access: yes, 2015
We introduce a parallel machine scheduling problem in which the processing times of jobs are not given in advance but are determined by a system of linear constraints. The objective is to minimize the makespan, i.e., the maximum job completion time among
Nip, Kameng, Wang, Zhenbo, Wang, Zizhuo
core   +1 more source

Improvement of organisation for road transport functioning in a multimodal logistics system for grain delivary from Volgograd region to Iran

open access: yesВестник СибАДИ, 2022
Introduction. The paper has developed a new scheme of a multimodal logistics system for grain transportation for export to Iran using links and graphs.
A. V. Kulikov   +3 more
doaj   +1 more source

Sub-Synchronous Oscillation Suppression Based on VSG Virtual Impedance Feasible Domains

open access: yes南方能源建设
[Objective] The virtual synchronous generator (VSG) system exhibits negative damping characteristics under weak grid connection, which triggers subsynchronous oscillations and leads to system instability.
Yuxin SUN, Qin SUN, Yi DU
doaj   +1 more source

Collision-Free Path Planning for Cooperative Aerial Manipulators Under Velocity and Curvature Constraints

open access: yesIEEE Access, 2019
This paper presents a path planning problem with velocity and curvature constraints for cooperative aerial manipulators in obstacle environments. While potential-flow-based path planning approaches can help generate smooth paths in which cooperative ...
Hyeonbeom Lee   +2 more
doaj   +1 more source

Selection of economically rational investments through cost benefit analysis [PDF]

open access: yesEkonomski Signali, 2022
Business decision making is an act of choosing between at least two competing simultaneously available investment alternatives. Cost benefit analysis enables direct and indirect measurement of all relevant costs and benefits expected in the future based ...
Dedović Nedeljka
doaj  

On heterotic model constraints

open access: yes, 2008
The constraints imposed on heterotic compactifications by global consistency and phenomenology seem to be very finely balanced. We show that weakening these constraints, as was proposed in some recent works, is likely to lead to frivolous results.
Bouchard, Vincent, Donagi, Ron
core   +1 more source

Constraints On Cosmic Dynamics [PDF]

open access: yes, 2003
Observationally, the universe appears virtually critical. Yet, there is no simple explanation for this state. In this article we advance and explore the premise that the dynamics of the universe always seeks equilibrium conditions.
Mbonye, Manasse R.
core   +3 more sources

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