Results 111 to 120 of about 15,172 (317)

ANALYSIS OF THE INFLUENCE OF TRANSDUCER FREQUENCY ON THE ULTRASONIC MEASUREMENT OF CONCRETE HOMOGENEITY

open access: yesActa Polytechnica CTU Proceedings, 2019
The paper analyses the influence of transducer frequency on the determination of concrete homogeneity using the ultrasonic pulse velocity test. Transit time measurements were made on a 590×590mm concrete slab, with 110mm in thickness, in a raster of 5×5 ...
Dalibor Kocáb   +4 more
doaj   +1 more source

Extrusion Bioprinting for Wound Healing: Innovations in Functionalized Bioinks and Bioprinting Technology

open access: yesAdvanced Materials Technologies, EarlyView.
Extrusion‐based bioprinting (EBB) has emerged as a versatile biofabrication platform capable of precisely depositing bioinks composed of biomaterials, cells, and bioactive agents to generate patient‐specific, biomimetic skin constructs. This paper presents a state‐of‐the‐art and forward‐looking overview of EBB for wound healing, encompassing printing ...
Hien‐Phuong Le   +4 more
wiley   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

Non-destructive assessment of concrete deterioration by ultrasonic pulse velocity: A review

open access: yesIOP Conference Series: Earth and Environment, 2019
As concrete structures age, concrete quality tends to deteriorate for reasons which include frost damage, acid attack, sulphate attack, fire damage or as a result of bad construction practice. Thus, these effects develop as distresses thereby undermining
A. Ndagi, A. Umar, F. Hejazi, M. Jaafar
semanticscholar   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

open access: yesAdvanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu   +5 more
wiley   +1 more source

Physical and mechanical characterization of concrete exposed to elevated temperatures by using ultrasonic pulse velocity

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2015
Experimental investigations were carried out for assessing the influence of thermal loadings on the physical and mechanical properties of plain concrete after fire exposure.
Ricardo Alfredo Cruz Hernández   +3 more
doaj   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

open access: yesAdvanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett   +5 more
wiley   +1 more source

Toughness, elasticity and physical properties for the evaluation of foamed concrete reinforced with hybrid fibers

open access: yesHeliyon, 2018
This study has been undertaken to investigate the evaluation of Fiber-reinforced Foamed Concrete (FRFC) performance by the use of toughness and non-destructive tests.
Eethar Thanon Dawood   +3 more
doaj   +1 more source

Alternate assessment of strength characteristics of clayey soil for compaction using ultrasonic pulse velocity method

open access: yes, 2018
Earthwork is a component in any Civil Engineering construction and to determination of soil properties in the laboratory is the basis of design. Clayey soils exhibits large volume changes in presence of water leads to swelling and shrinkage.
Vinay A   +2 more
core   +1 more source

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