Results 91 to 100 of about 1,772,155 (351)

High Strength, High Density Concrete

ACI Journal Proceedings, 1965
Abstract : Although high-density concrete found limited use as a shielding material against X-rays before the large-scale development of nuclear reactors and similar devices, the latter have been almost entirely responsible for the research and development that have been done on the production and use of high-density concrete as a shielding material ...
openaire   +2 more sources

Information Transmission Strategies for Self‐Organized Robotic Aggregation

Advanced Robotics Research, EarlyView.
In this review, we discuss how information transmission influences the neighbor‐based self‐organized aggregation of swarm robots. We focus specifically on local interactions regarding information transfer and categorize previous studies based on the functions of the information exchanged.
Shu Leng, Zihan Li, Yifeng Shao, Jinhao Liu, Li Yu, Shuguang Li   +5 more
wiley   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

Engineering Performance Of High Strength Concrete Containing Steel Fibre Reinforcement [PDF]

, 2013
The development and utilization of the high strength concrete in the construction industry have been increasing rapidly. Fiber reinforced concrete is introduced to overcome the weakness of the conventional concrete because concrete normally can crack ...
Othuman Mydin, Md Azree
core   +1 more source

Nurr1 Orchestrates Claustrum Development and Functionality

Advanced Science, EarlyView.
Nurr1 (Nr4a2) is the master transcription factor to control claustrum morphogenesis and cell fate decision postmitotically by inhibiting intracellular G‐protein signaling. Nurr1 deficiency alters the transcriptomic profiles of subcortical claustral neurons into neocortical insular neurons, resulting in defected claustrum development, impaired axonal ...
Kuo Yan, Andrew G. Newman, Pauline Lange, Susanne Müller, Marco Foddis, Stefan Paul Koch, Philipp Böhm‐Sturm, Maron Mantwill, Carsten Finke, Penghui Deng, Melissa Long, Dietmar Schmitz, Victor Tarabykin   +12 more
wiley   +1 more source

Deformability evaluation of high-strength reinforced concrete columns [PDF]

, 2010
Plastic hinge length and ultimate curvature are the crucial parameters that enable inelastic deformability (deflection and rotation) of reinforced concrete columns to be evaluated.
Ho, J. C. M., Pam, H. J.
core   +4 more sources

Analisis Variasi Metode Perawatan Pada High Volume Fly Ash Concretemutu Tinggi Terhadap Sifat Mekanisnya [PDF]

, 2016
Concrete care is a process that aims to keep the concrete is not too rapid loss of water, keeping moisture or concrete. This research was conducted at high volume fly ash concrete with concrete quality planned f'c 45 MPa, using a mix design method of ACI,
, Mochamad Solikin, S.T., M.T., Ph.D, Romadhoni, Nurnaim   +1 more
core  

Generalized Mechanism Model for Ecosystem Hysteresis

Advanced Science, EarlyView.
A simplified model examines ecosystem transitions into alternative states after disturbances by leveraging positive and negative feedbacks. It identifies critical tipping points and quantifies hysteresis. Tests conducted on lakes, grasslands, and pitcher‐plant leaves align closely with empirical data and enable the prediction of recovery trajectories ...
Yanbin Hao, Xin Wang, Jie Liu, Mingzi Wu, Jianqing Du, Kai Xue, Xiaoning Song, Xiaoyong Cui, Tong Zhao, Yanfen Wang   +9 more
wiley   +1 more source

Comparison of GFRP and CFRP confinement of normal and high strength concrete

Građevinar, 2020
An experimental and analytical study was conducted to quantify the increase in strength and ductility of GFRP and CFRP confined concrete cylinders made of normal strength concrete and high strength concrete.
Muhammad Rameez Sohail, Naveed Ahmad, Muhammad Usman Rashid, Rana Waqas, Usman Muhammad   +4 more
doaj   +1 more source

Restrained Shrinkage Cracking of Fiber-Reinforced High-Strength Concrete

, 2018
Concrete shrinkage and volume reduction happens due to the loss of moisture, which eventually results in cracks and more concrete deformation. In this study, the effect of polypropylene (PP), steel, glass, basalt, and polyolefin fibers on compressive and
Ashkan Saradar, B. Tahmouresi, E. Mohseni, A. Shadmani   +3 more
semanticscholar   +1 more source