Results 131 to 140 of about 1,630,954 (334)
Advanced Intelligent Systems, EarlyView.Legged robots have advanced in environmental interaction through contact, but most works rely on fixed contact sequences. This work presents a new method based on an indirect optimization method for legged robots to automatically generate contact sequences for complex movements.
Yaowei Chen, Jie Zhang, Ming Lyu
wiley +1 more source
Advanced Intelligent Systems, EarlyView.This work presents a tip‐growing eversion robot that uses phase‐changing alloys for reversible stiffening and localized actuation, achieving 43× stiffness modulation, 15× force amplification, and segmental steering. The system enables precise navigation and force delivery in constrained, tortuous pathways.
Shamsa Al Harthy +4 more
wiley +1 more source
Mitigation Of Climate Change Of Coffee Production Systems In Cundinamarca, Colombia
Floresta e AmbienteProduction systems with woody perennial plants, ideally timber trees, are technologies accepted in carbon (C) projects to mitigate climate change. This research had as purpose the estimation of C storage and fixation in coffee production systems in ...
Hernán J. Andrade, Piedad C. Zapata
doaj +1 more source
American Journal of Botany, EarlyView.Abstract Premise Flowers that present their anthers and stigma in close proximity can achieve precise animal‐mediated pollen transfer, but risk self‐pollination. One evolutionary solution is reciprocal herkogamy. Reciprocity of anther and style positions among different plants (i.e., a genetic dimorphism) is common in distylous plants, but very rare in
Steven D. Johnson +5 more
wiley +1 more source
Trees, Forests and PeopleAround the world, restoration activities are underway to halt and reverse ecosystem degradation. A key challenge is to identify restoration approaches that work for both people and nature – i.e.
Tom Reckmann +5 more
doaj +1 more source
Mechanisms of pathogenic transmission in agroforests: the role of leaf functional traits in shade coffee systems [PDF]
, 2017 Coffee leaf rust (CLR), a pathogenic disease that results in premature leaf fall and significant yield loss, has become a major concern in coffee-growing regions, especially in Central and South America, after recent intense epidemics.
Avelino, Jacques +2 more
core
American Journal of Botany, EarlyView.Abstract Premise Species of Deuterocohnia (17 spp.) show extraordinary variation in elevation (0–3900 m a.s.l.) and growth forms, and many have narrow geographic distributions in the west‐central Andes and the Peru‐Chile coast. Previous research using few plastid and nuclear loci failed to produce well‐resolved or supported phylogenies.
Bing Li +5 more
wiley +1 more source
Effects of native and non-native shade trees on insect predation pressure on Kenyan coffee farms
Frontiers in Conservation ScienceIntroductionAgroecosystem practices that aim to increase biodiversity and ecosystem services have the potential to benefit both wildlife and farmers. Shade-coffee systems are well-studied in the Neotropics, but less is known about the relationships among
Ximena Oviedo Moura +3 more
doaj +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT The continuous increasing discharge of synthetic dyes into aquatic systems seems to be an important environmental and health risk due to their high toxicity and resistance to biodegradation. Among these dyes, methylene blue (MB) and Congo red (CR) are widely used in textile and industrial applications, necessitating sustainable and efficient ...
Avanish Kumar +2 more
wiley +1 more source