Results 11 to 20 of about 4,227 (265)

A novel approach to structural anisotropy classification for jointed rock masses using theoretical rock quality designation formulation adjusted to joint spacing

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2022
Rock quality designation (RQD) has been considered as a one-dimensional jointing degree property since it should be determined by measuring the core lengths obtained from drilling. Anisotropy index of jointing degree (AIjd) was formulated by Zheng et al.
Harun Sonmez   +2 more
doaj   +1 more source

Thermomigration induced microstructure and property changes in Sn-58Bi solders

open access: yesMaterials & Design, 2019
Thermomigration (TM) has become a critical reliability issue in advanced electronic packaging because of Joule heating. A temperature gradient is required to conduct heat away, and only 1 °C of temperature difference across a 10 μm thick microbump ...
Yu-An Shen   +4 more
doaj   +1 more source

The technology of block stone extraction at complex carbonate deposits

open access: yesГорные науки и технологии, 2016
It was found that the carbonate deposits of the Russian Platform presented mainly unconsolidated arrays with complex spatial network of endogenous vertical cracks and bedding, which is expressed in the separation column of limestone on layers and layers.
A. V. Stromonogov   +2 more
doaj   +1 more source

Irrigation and Phosphorus Fertilization Combine to Affect Uptake and Utilization of Phosphorus by Rice

open access: yesGuan'gai paishui xuebao, 2021
【Background and Objective】 Fertilization and irrigation are central to modern agriculture, but their utilization efficiency by crops is low in most countries including China.
LI Hanchang   +6 more
doaj   +1 more source

The joint

open access: yesActa Psychologica, 2003
Some concave volumes are perceived as compositions of joined objects. Joined objects are optically undetermined, being compatible with three possible solutions: an empty intersection volume bounded by two indented objects; an intersection volume entirely filled-in by parts of two indented objects; a totally convex object joined to an indented object ...
GERBINO, WALTER, ZABAI C.
openaire   +3 more sources

Butt Jointing of Prefabricated Concrete Columns

open access: yesCivilEng, 2022
In response to housing shortages in densely inhabited urban areas, there is a search for structural engineering solutions for serial and modular construction. Prefabricated concrete columns can make an important difference. Using industrial manufacturing
Henrik Matz, Martin Empelmann
doaj   +1 more source

Effects of Spatial-temporal Dynamics in Crop Water Consumption on Grain Yield of Winter Wheat

open access: yesGuan'gai paishui xuebao, 2022
【Objective】 The effect of water consumption of winter wheat varieties on yield was investigated to provide theoretical basis for selecting drought-resistant varieties to improve winter wheat yield in water-deficient areas.
JIA Xiaoqian   +3 more
doaj   +1 more source

Effect of Prolonged Drought on Chlorophyll Fluorescence, Yield and Water Use Efficiency of Summer Maize

open access: yesGuan'gai paishui xuebao, 2023
【Objective】 Drought is a common stress faced by crops during their growth. Its impact on crop growth and ultimate yield depends on when droughts occur as well as their duration and severity.
LI Yanbin   +6 more
doaj   +1 more source

Mortars for jointing

open access: yesMateriales de Construccion, 1959
Not ...
Equipo Editorial
doaj   +1 more source

Nitrogen fertilization and precipitation affected Wheat (Triticum aestivum L.) in dryland the Loess Plateau of South Shanxi, China

open access: yesHeliyon, 2023
Wheat (Triticum aestivum L.) is a staple crop worldwide, and its yield has improved since the green revolution, which was attributed to chemical nitrogen (N) fertilizer application.
Hafeez Noor   +5 more
doaj   +1 more source

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