Results 51 to 60 of about 1,001,571 (236)

Diel Oxygen Changes in Closed Ecological Systems; Predictive of Lake Metabolism? [PDF]

open access: yes, 2020
AbstractThe net oxygen change over a 24-hour day/night cycle in a laboratory study showed strong consistent patterns of (1)gain, when nutrients and light were available; (2)maintain, with daytime gains being matched by nighttime losses; and (3)loss, over brief periods of time during intense zooplankton grazing on previously grown phytoplankton or over ...
Frieda B. Taub, David J. Bridges
openaire   +1 more source

Aquatic bryophytes as biofilters and resource regenerators in Bioregenerative Life Support Systems: the moss on Mars project

open access: yesFrontiers in Plant Science
IntroductionBioregenerative Life Support Systems (BLSSs) are closed-loop systems that rely on biological processes, primarily involving plants, algae, and microbes, for sustaining long-term space missions by regenerating essential resources and ...
Chiara Amitrano   +7 more
doaj   +1 more source

Ecological foresight in the nuclear power of XXI century [PDF]

open access: yes, 2016
The access to reliable sources of energy is the key to sustainable development of mankind. The major part of the energy consumed by people is generated with a chemical reaction of fossil fuel burning.
Nosov, Y.   +3 more
core   +1 more source

Digital Transformation and Modeling of Nature-Inspired Systems

open access: yesSystems
With the tightening of environmental regulations, the need to identify tools that foster the development of sustainable systems is growing. The shift toward closed-loop, bio-like systems promotes the creation of nature-inspired systems.
Naira V. Barsegyan   +2 more
doaj   +1 more source

Adaptive ecological knowledge among the Ndjuka Maroons of French Guiana; a case study of two ‘invasive species’: Melaleuca quinquenervia and Acacia mangium

open access: yesJournal of Ethnobiology and Ethnomedicine, 2023
Background To understand how local ecological knowledge changes and adapts, here in the case of the recent introduction of plant species, we report the knowledge and perceptions of the Ndjuka (Maroon) of French Guiana concerning two tree species, Acacia ...
Johanna Theys   +6 more
doaj   +1 more source

Dynamic Ecological System Analysis

open access: yes, 2018
This article develops a new mathematical method for holistic analysis of nonlinear dynamic compartmental systems through the system decomposition theory.
Coskun, Huseyin
core   +1 more source

ECOLOGICAL IMPERATIVE OF LOGISTIC DEVELOPMENT

open access: yesВестник университета, 2019
The problems of the ekologo-focused logistic development of economy are considered in the article. The arguments proving necessary of creation of the ecological restrictions for economic activity capable to consider interests of the environment and ...
K. Matevosova
doaj  

Space ecosynthesis: An approach to the design of closed ecosystems for use in space [PDF]

open access: yes
The use of closed ecological systems for the regeneration of wastes, air, and water is discussed. It is concluded that such systems, if they are to be used for the support of humans in space, will require extensive mechanical and physico-chemical support.
Averner, M. M., Macelroy, R. D.
core   +1 more source

Governance for sustainability: learning from VSM practice [PDF]

open access: yes, 2015
Purpose – While there is some agreement on the usefulness of systems and complexity approaches to tackle the sustainability challenges facing the organisations and governments in the twenty-first century, less is clear regarding the way such approaches ...
Espinosa, Angela
core   +2 more sources

ECOLOGICAL IMPERATIVE OF LOGISTIC DEVELOPMENT

open access: yesВестник университета, 2017
The problems of the ekologo-focused logistic development of economy are considered in the article. The arguments proving necessary of creation of the ecological restrictions for economic activity capable to consider interests of the environment and ...
K. Matevosova
doaj  

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