Results 91 to 100 of about 352,390 (308)

Seasonal composition, abundance and biomass of the subestuarine fish assemblage in Solís Chico (Río de la Plata estuary, Uruguay)

Brazilian Journal of Biology
The large estuaries can present long narrow branches called subestuaries or tidal creeks. These types of subsystems are distributed along the Uruguayan coast of the Río de la Plata estuary and are very important as nursery and refuge areas for fish.
A. Acuña Plavan, R. Gurdek, N. Muñoz, J. M. Gutierrez, M. Spósito, P. Correa, A. Caride   +6 more
doaj   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

Diatoms diversity and ecological status of the Đetinja River (Serbia) [PDF]

, 2016
The Đetinja River is located in western Serbia and it was dammed for creating an artificial Lake Vrutci. Epilithic samples were collected during 11 season (September, October and December 2014, March, April, May, June, July, August, September and October
Predojević, Dragana, Krizmanić, Jelena, Vidaković, Danijela, Subakov-Simić, Gordana, Trbojević, Ivana, Marjanović, Prvoslav, Kostić, Dušan   +6 more
core  

Biodegradable Chitosan Films as Green Resists for Gold Nanowires Fabrication Through AFM‐Based Nanolithography

Advanced Materials Interfaces, EarlyView.
Schematic illustration of a sustainable nanofabrication process: chitosan derived from natural sources is used as a biodegradable thin film resist, patterned via Constant Pulse‐Assisted Force Lithography (CP‐AFL) to create tunable nanogrooves. These grooves template gold nanowire formation, enabling high‐resolution nanopatterning under ambient ...
Paolo Pellegrino, Lorenzo Vincenti, Isabella Farella, Valeria De Matteis, Mariafrancesca Cascione, Annalisa Bianco, Fabio Quaranta, Rosaria Rinaldi   +7 more
wiley   +1 more source

Classification of the ecological status of volcanic lakes in Central Italy

Journal of Limnology, 2003
A synthesis is made of biological data collected in the last three decades on five volcanic lakes in Central Italy with the aim of evaluating their environmental status by means of biological parameters related to zooplankton, littoral and profundal zoobenthos frequently used to detect water quality changes in lakes.
MASTRANTUONO, Luciana, M. SEMINARA, D. VAGAGGINI, MARGARITORA, Fiorenza, BAZZANTI, Marcello, FERRARA, Ornella   +5 more
openaire   +5 more sources

Cornus Mas L. Seed‐Derived Biosorbent for Methylene Blue Removal: Surface Characterization and Biosorption Performance

Advanced Materials Interfaces, EarlyView.
Cornus mas L. seeds are transformed into a high‐performance biosorbent through chemical modification, effectively removing methylene blue from aqueous solutions. Comprehensive characterization and optimization reveal a maximum biosorption capacity of 71.71 mg g−1, establishing this sustainable, cost‐effective material as a promising solution for ...
Hakan Yıldız, Adem Necip, Arslan Yusuf Yüksel   +2 more
wiley   +1 more source

MODERN CONTAMINATION OF BOTTOM SEDIMENTS AND ECOLOGICAL STATE OF MACROZOOBENTHOS IN THE COASTAL ZONE AT VLADIVOSTOK (PETER THE GREAT BAY, JAPAN SEA)

Известия ТИНРО, 2019
Contamination of bottom sediments in Peter the Great Bay is spatially variable, but for majority of stations it exceeds the natural geochemical background and «safe» level with at least one pollutant, mainly with hydrocarbons, pesticides, cadmium and ...
A. V. Moshchenko, T. A. Belan, B. M. Borisov, T. S. Lishavskaya, A. V. Sevastianov   +4 more
doaj   +1 more source

Micropillar‐Engineered Hybrid Adhesive Patch for Surface‐Conformable and Directional Adhesion

Advanced Materials Technologies, EarlyView.
This work presents a surface‐conformable hybrid adhesive integrating height‐optimized hexagonal micropillars with open‐rectangular cuts. The micropillars enhance rough‐surface contact and microscale crack arrest, while the cuts guide and reverse interfacial cracks for strong and directional adhesion. The multiscale architecture achieves robust pull‐off
Seongjin Park, Dong Kwan Kang, Haejin Bae, Ho‐Sup Jung, Hoon Eui Jeong   +4 more
wiley   +1 more source

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

Advanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

Ecological status of Lake Baikal

, 2023
The aim of this bachelor thesis was to study the ecological status of Lake Baikal. The research focuses on the main problems related to the impact of human activity on the lake. During the study, data on the hydrochemistry of the lake and its tributaries
Mongolova, Marina
core   +1 more source