Results 41 to 50 of about 627,854 (244)

Plant and soil microbe responses to light, warming and nitrogen addition in a temperate forest [PDF]

, 2018
1. Temperate forests across Europe and eastern North America have become denser since the 1950s due to less intensive forest management and global environmental changes such as nitrogen deposition and climate warming. Denser tree canopies result in lower
Boeckx, Pascal, Boon, Nico, De Frenne, Pieter, Ma, Shiyu, Props, Ruben, Vanhellemont, Margot, Verheyen, Kris, Wasof, Safaa   +7 more
core   +2 more sources

Current Tracking Adaptive Control of Brushless DC Motors

International Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García, Axel Coronado‐Andrade, Gerardo Espinosa‐Pérez, Luis Alvarez‐Icaza   +3 more
wiley   +1 more source

Effect of rice husk ash content and carbonization curing on lime-stabilized recycled aggregates: mechanical behavior and microscopic mechanism

Materials Research Express
The stabilization of recycled aggregates using rice husk ash (RHA) synergized with lime offers both the resource utilization of solid waste and an enhancement in the mechanical properties of recycled aggregates.
Haocheng Lai, Kaihao Lin, Na Li, Junyi Qin, Yifang Song, Yiming Jiang, Wei Wang   +6 more
doaj   +1 more source

Dynamic response analysis of the integrated station-bridge elevated station under the pile-soil interaction [PDF]

E3S Web of Conferences, 2020
In order to study the dynamic response of the integrated station-bridge structure under the pile-soil interaction, a model was established by finite element software for dynamic analysis.
Zhang Shuqi, Li Jin, Li Jingyuan, Zhang Jiaolei   +3 more
doaj   +1 more source

Physical characteristics of soil under different cropping and natural system on the plain of jars, Xieng Khouang province, Laos [PDF]

, 2006
Conservation agriculture and direct seeding mulch-based cropping (DMC) systems greatly modify plant and soil interaction. Plants commonly provide energy that fuels biological processes and either directly or indirectly creates structure within soils ...
Chabanne, André, Lienhard, Pascal, Saphanthong, Vilasack, Sosomphou, Thammakham, Séguy, Lucien, Tivet, Florent   +5 more
core  

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

Advanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel, Lea Dierker, Antoine Eyram Kwame, Kim Nora Wagner, Jonas J. Unterholzner, Jan‐Henning Dirks, Dorothea Brüggemann   +6 more
wiley   +1 more source

Evaluation of the dynamic responses of high rise buildings with respect to the direct methods for soil-foundation-structure interaction effects and comparison with the approximate methods [PDF]

Journal of Structural and Construction Engineering, 2017
In dynamic analysis, modeling of soil medium is ignored because of the infinity and complexity of the soil behavior and so the important effects of these terms are neglected, while the behavior of the soil under the structure plays an important role in ...
Jahangir Khazaei, Azadeh Amiri
doaj   +1 more source

Effects of soil-pile-structure interaction on seismic response of moment resisting buildings on soft soil [PDF]

, 2012
Dynamic response of structures sitting on soft soils is influenced by the soil properties, and the response is significantly different to the fixed base condition owing to the interaction between the ground and the structure, In order to study this ...
Far, H, Fatahi, B, Sadeghi Hokmabadi, A, Samali, B   +3 more
core  

Dimensional Analysis: Overview and applications to problems of Soil-Structure Interaction [PDF]

, 2019
Dimensional Analysis is a long-established tool widely used in many branches of engineering and science. However, applications in geotechnical engineering, and in particular soil-structure interaction (SSI), have barely been explored, in spite of the ...
Asimaki, Domniki, Garcia-Suarez, Joaquin, Kusanovic, Danilo S.   +2 more
core   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source