Results 81 to 90 of about 252,481 (245)

Scale‐up of Streptomyces species cultivations based on the morphological response to the energy dissipation rate

open access: yesAIChE Journal, EarlyView.
Abstract Filamentous microorganisms exhibit complex morphologies that influence product formation and are affected by various bioprocess parameters. Consistent morphology is therefore essential for comparable results during scale‐up. This study investigates the scale‐up of Streptomyces species (Streptomyces spp.) cultivations from shake flasks to ...
Gesa Brauneck   +12 more
wiley   +1 more source

Flore et végétation actuelles de l’Afrique du nord, leur signification en fonction de l’origine, de Involution et des migrations des flores et structures de végétation passées

open access: yesBothalia: African Biodiversity & Conservation, 1983
PRESENT VEGETATION AND FLORA OF NORTHERN AFRICA, THEIR MEANING IN RELATION TO THEIR ORIGIN, EVOLUTION AND MIGRATIONS OF FLORAS AND THE STRUCTURES OF PAST VEGETATION In the light of recent works and biogeographic synthesis, the Mediterranean flora ...
P. Quézel
doaj   +1 more source

Bellis prostrata Pomel (Asteraceae), a new species for Morocco [PDF]

open access: yes, 2010
Investigations conducted in temporary wetlands of the coastal Meseta of W Morocco (Benslimane region) lead to the discovery of Bellis prostrata in a small endoreic temporary pool (ca.
Amami, Btissam   +15 more
core   +2 more sources

Voxel‐SLAM: A Complete, Accurate, and Versatile Light Detection and Ranging‐Inertial Simultaneous Localization and Mapping System

open access: yesAdvanced Intelligent Systems, EarlyView.
: In this work, Voxel‐SLAM (simultaneous localization and mapping) is introduced: a complete, accurate, and versatile LiDAR (light detection and ranging) ‐inertial SLAM system consisting of five modules: initialization, odometry, local mapping (LM), loop closure (LC), and global mapping (GM), all employing the same map representation, an adaptive voxel
Zheng Liu   +9 more
wiley   +1 more source

Etude de la biologie et de l'écologie de Glossina fusca congolensis Newst. et Evans en République Centrafricaine. II Gîtes de repos, activité diurne

open access: yesRevue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1965
Les lieux et les caractéristiques de repos de Glossina fusca congolensis Newst. et Evans semblent, dans les conditions de la station de recherches de Bewiti, en République Centrafricaine, être les suivants : Pas de préférence nette si ce n'est une ...
Pierre Yvoré   +2 more
doaj   +1 more source

Between desert and forest: the Holocene savannas of NE-Nigeria [PDF]

open access: yes, 2006
Numerous ecologists postulate that West African savannas are mostly the result of degradation of formerly closed forests. This hypothesis can only be tested by palaeoecological investigations.
Salzmann, Ulrich
core  

Deep Learning Methods for Assessing Time‐Variant Nonlinear Signatures in Clutter Echoes

open access: yesAdvanced Intelligent Systems, EarlyView.
Motion classification from biosonar echoes in clutter presents a fundamental challenge: extracting structured information from stochastic interference. Deep learning successfully discriminates object speed and direction from bat‐inspired signals, achieving 97% accuracy with frequency‐modulated calls but only 48% with constant‐frequency tones. This work
Ibrahim Eshera   +2 more
wiley   +1 more source

Artificial Intelligence in Autonomous Mobile Robot Navigation: From Classical Approaches to Intelligent Adaptation

open access: yesAdvanced Intelligent Systems, EarlyView.
Artificial intelligence (AI) is reshaping autonomous mobile robot navigation beyond classical pipelines. This review analyzes how AI techniques are integrated into core navigation tasks, including path planning and control, localization and mapping, perception, and context‐aware decision‐making. Learning‐based, probabilistic, and soft‐computing methods
Giovanna Guaragnella   +5 more
wiley   +1 more source

Quelques exemples camerounais de liaison possible entre phénomênes géologiques et végétation

open access: yesBothalia: African Biodiversity & Conservation, 1983
SOME CAMEROON EXAMPLES OF A POSSIBLE CONNECTION BETWEEN GEOLOGICALPHENOMENA AND VEGETATION The paper includes the following: a morphological, ecological and geographical description of the monophytic populations (unique in humid African forests) of ...
R. Latouzey
doaj   +1 more source

Importance d'une banque de semences du sol pour régénérer des parcours camelins algériens [PDF]

open access: yes, 2019
L'étude porte sur l'impact potentiel d'une banque du sol sur le renouvellement de la végétation pastorale nécessité par les contraintes climatiques. Des échantillons de sols des écosystèmes pâturés sahariens du Sud algérien ont été prélevés dans 6 types ...
Chehma, Abdelmadjid   +2 more
core  

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