Results 101 to 110 of about 686,858 (318)

Experimental Study on Energy Evolution and Acoustic Emission Characteristics of Fractured Sandstone under Cyclic Loading and Unloading

open access: yesApplied Sciences
To investigate the dynamic response of fractured rock under cyclic loading and unloading, a WHY-300/10 microcomputer-controlled electro-hydraulic servo universal testing machine was used to conduct uniaxial cyclic loading and unloading tests ...
Xuebin Xie, Kangshuai Sun, Yeshan Sheng
doaj   +1 more source

Pilot Rock Notice of Adopted Amendment (2007-05-07)

open access: yes, 2007
9 pp. Adopted 2007-05-07. Department of Land Conservation and Development Notice of Adopted AmendmentWe annexed 445 acres into the City of Pilot Rock.
Pilot Rock (Or.)
core  

Tuning Separator Chemistry: Improving Zn Anode Compatibility via Functionalized Chitin Nanofibers

open access: yesAdvanced Functional Materials, EarlyView.
Nanochitin derived from waste shrimp shells is used to fabricate separators for aqueous zinc batteries. By tuning the density of amine and carboxylic surface groups, water mobility at the separator interface is controlled, promoting uniform zinc deposition, suppressing dendrite growth, and enabling exceptional cycling stability exceeding 2000 h ...
Ibrahim Al Kathemi   +6 more
wiley   +1 more source

A new recording and interpretation of the rock art of Angono, Rizal, Philippines

open access: yes, 2018
The rock art of Angono is the most famous and controversial rock art site in the Philippines. It has been 50 years since the rock art was discovered, studied and interpreted.
Jalandoni, Andrea, Tacon, Paul SC
core  

Nanoengineered Binetworks in Multifunctional Anionic Block Polymer Mesoblends for Improved Mechanical Properties

open access: yesAdvanced Functional Materials, EarlyView.
Mesoblends consist of a nanostructured polymer into which a second polymer is imbibed with a selective solvent. In this work, a solvent‐templatable pentablock terpolymer possessing a sulfonated midblock is modified with a hydrophilic polymer that is photocrosslinked in situ, yielding a hierarchical binetwork.
Kacie M. Wells   +3 more
wiley   +1 more source

Little Rock Buildings photograph collection, circa 1907-1976

open access: yes, 1920
This collection contains postcards and photographic prints of street scenes and buildings in Little Rock, including churches, government buildings, the Little Rock Public Library, and Main Street (1933).Little Rock Buildings photograph collection, circa ...

core  

Aspects of energy requirements for rock drilling [PDF]

open access: yes, 1974
Development of laboratory rock breakage techniques to relate energy and surface area produced by slow compression, drop hammer and stamp mill. A detailed study of laboratory rotary-percussive drilling in a wide range of rocks under different ...
Wootton, David
core  

Hierarchical MXene‐Derived NTP/C Nanohybrids for Cryogenic Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A hierarchical MXene‐derived NaTi2(PO4)3/C nanohybrid enables efficient sodium‐ion storage down to −40°C by integrating fast ion–electron transport pathways with an ether‐based electrolyte. The system promotes dominant pseudocapacitive behavior and forms a robust inorganic‐rich SEI, collectively mitigating kinetic and interfacial limitations, thereby ...
M. Sai Bhargava Reddy   +5 more
wiley   +1 more source

Little Rock Scenes photograph collection, 1945-1965

open access: yes, 1958
This collection contains photographic prints of buildings, businesses, and people in Little Rock and North Little Rock during the 1950s and 1960s.Little Rock Scenes photograph collection, 1945 ...

core  

Back-analysis of schistose rock mass strength parameters based on displacement monitoring data

open access: yes, 2012
This paper presents a displacement based back-analysis method for the determination of the elastic modulus (E), cohesive strength (C), friction angle (φ) and in situ stress of a schistose rock mass. Orthogonal experimental design (OED) method was used to
Wang, S. J.   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy