Results 51 to 60 of about 1,183,840 (305)

Influence of soil physical and chemical characteristics on soil compaction in farm field

Heliyon
Farm soil compaction is influenced by animal loads and Agricultural machinery. In this paper the influence of soil physical and chemical characteristics on soil compaction at Awash Melkasa farm field.
Yared Seifu Woldeyohannis, Someshakher S Hiremath, Simie Tola, Amana Wako   +3 more
doaj   +1 more source

How wildfires affect soil properties. A brief review

Cuadernos de Investigación Geográfica, 2014
Wildfires may produce several changes in the short- and longterm in the landscape and in the soil system. The magnitude of these changes induced by fire in the components of ecosystems (water, soil, vegetation and fauna) depends on fire properties (fire ...
L.M. Zavala, R. de Celis, A. Jordán
doaj   +1 more source

Rice Paddies Reduce Subsequent Yields of Wheat Due to Physical and Chemical Soil Constraints

Frontiers in Plant Science, 2022
Yields of wheat crops that succeed rice paddy crops are generally low. To date, it has been unclear whether such low yields were due to rice paddies altering soil physical or mineral characteristics, or both.
Rui Yang, Zhuangzhi Wang, Shah Fahad, Shah Fahad, Shiying Geng, Chengxiang Zhang, Matthew Tom Harrison, Muhammad Adnan, Shah Saud, Meixue Zhou, Ke Liu, Ke Liu, Xiaoyan Wang   +12 more
doaj   +1 more source

Soil Physical Properties and Production of Upland Ultisol Soil [PDF]

, 2012
Acid upland soil in Indonesia has a great potential for agricultural development but the soil physical properties have been degraded. The use of manure and direct application of Gresik phosphate rock (PR) was an alternative to improve land productivity ...
Haryati, U. (Umi), soelaeman, Y. (yoyo)
core  

Temporal stability of soil moisture and radar backscatter observed by the advanced Synthetic Aperture Radar (ASAR) [PDF]

, 2008
The high spatio-temporal variability of soil moisture is the result of atmospheric forcing and redistribution processes related to terrain, soil, and vegetation characteristics.
Alexander Löw, Annett Bartsch, Baghdadi, Bamler, Bartalis, Baup, Carsten Pathe, Ceballos, Ceballos, Chen, Cosh, Cosh, Crow, Daniel Sabel, Davidson, De Lannoy, Dirmeyer, Dubayah, Engman, Entin, Fung, Gauthier, Grayson, Günter Blöschl, Hillel, José Martínez-Fernández, Kerr, Kerr, Klaus Scipal, Loew, Marcela Doubkova, Martinez-Fernandez, Martinez-Fernandez, Meier, Moran, Mäkynen, Narayan, Njoku, Njoku, Pellarin, Raju, Schanda, Stefan Hasenauer, Ulaby, Ulaby, Vachaud, van Zyl, Vinnikov, Wagner, Wagner, Wagner, Wagner, Walker, Walker, Western, Western, Wolfgang Wagner, Zhao, Zink   +58 more
core   +4 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

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

Evaluating soil amendments for improvement of soil physical properties

California Agriculture, 1974
Al of the amendments tested lowered the bulk density and greatly improved the water flow rate through the soil mix, thereby reducing management problems.
J Warneke, S Richards
doaj  

Space-time modeling of soil moisture: Stochastic rainfall forcing with heterogeneous vegetation [PDF]

, 2006
The present paper complements that of Isham et al. (2005), who introduced a space-time soil moisture model driven by stochastic space-time rainfall forcing with homogeneous vegetation and in the absence of topographical landscape effects.
Cox, DR, Isham, V, Manfreda, S, Porporato, A, Rodriguez-Iturbe, I   +4 more
core  

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source