Results 111 to 120 of about 129,274 (296)

A new model for evaluating the dynamic shear strength of rocks based on laboratory test data for earthquake-resistant design

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
The dynamic shear strength of rocks is required for the earthquake-resistant design of nuclear power plants in Japan. This research aims to propose a mathematical model for estimating the dynamic strength and to validate the model. Two different types of
Tetsuji Okada, Tomohiro Naya
doaj  

Comparative analysis of saturated–unsaturated shear strength under undrained loading: Experimental validation and ANN prediction of clayey soils

open access: yesAIP Advances
Geotechnical designs and analyses of earth structures and foundations exclusively involve the assessment and consideration of unsaturated soil shear strength. The laboratory testing equipment and methods for predicting the unsaturated soil shear strength
Prashant Pande   +7 more
doaj   +1 more source

Strength and Ductility Evaluation of L-Shape Shear Connectors in Composite Floors

open access: yesЖелезобетонные конструкции
Existing composite floor design approaches require technical data on strength and ductility of shear connectors, which can be defined only by shear tests.
G. P. Tonkih, D. A. Chesnokov
doaj   +1 more source

Supervariate Gel Transforms into Various Biominerals in Salt Solutions

open access: yesAdvanced Functional Materials, EarlyView.
It is revealed that common calcium‐based biominerals can form from a stable, non‐toxic ‘supervariate’ gel. This tunable gel selectively yields calcite or hydroxyapatite in carbonate/phosphate solutions, while CaCl₂ facilitates the formation of dihydrate calcium pyrophosphate, which converts to hydroxyapatite upon drying. These findings provide insights
Xinxue Tang   +12 more
wiley   +1 more source

Transforming Cellulose Into Functional Three‐Dimensional Structures

open access: yesAdvanced Functional Materials, EarlyView.
Cellulose is promising for replacing synthetic polymers due to its excellent mechanical properties and low cost. This review highlights the recent advancements in transforming cellulose into functional 3D structures, including liquid gels and porous materials.
Xia Sun   +5 more
wiley   +1 more source

Strength Standard and Shearing Strength of Dam Concrete (I)

open access: yesTransactions of the Japan Society of Civil Engineers, 1949
In the previous paper of this series, the writer stated that in the case of dam concrete where the stresses are 2 dimensional or 3 dimensional, strength standard should be shearing strength (in relations to the normal pressure on the surface), and he explained his examination method of shearing strength.In this paper, the results of experiments are ...
openaire   +4 more sources

Sonication‐Assisted Palladium Nanogaps in a Capacitive Structure: A Tunable and Reliable Solution for Sensitive Hydrogen Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a capacitive hydrogen sensor with a simple structure and process. Sonication‐induced Pd nanogaps modulate the effective electrode area in response to hydrogen concentration, resulting in capacitance changes within a range predefined by physical parameters.
Sang‐kil Lee   +9 more
wiley   +1 more source

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