Results 91 to 100 of about 860,624 (236)

Cold‐curing effects on the strength development and sulfuric acid resistance of basalt fiber‐reinforced hybrid alkali‐activated slag mortars

Structural Concrete, EarlyView.
Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci, Murat Dener, Ahmet Benli, Bilal Balun   +3 more
wiley   +1 more source

Design and Stimulation of Hydraulic Servo System for Vehicle Test Equipment for Rubber Shock Absorber

, 2010
Development of special rubber shock absorber test equipment for vehicle will become very important, this equipment can test and analysis of dynamic characteristics for rubber shock absorber.The paper discusses the problem on optimum design of electro ...
Cong Ling Zhu, Wei Zhu Jin, Wen Seng Gui
core   +1 more source

Design, Modeling, and Analysis of a Novel Hydraulic Energy-Regenerative Shock Absorber for Vehicle Suspension

Shock and Vibration, 2017
To reduce energy consumption or improve energy efficiency, the regenerative devices recently have drawn the public’s eyes. In this paper, a novel hydraulic energy-regenerative shock absorber (HERSA) is developed for vehicle suspension to regenerate the ...
Junyi Zou, Xuexun Guo, Lin Xu, Gangfeng Tan, Chengcai Zhang, Jie Zhang   +5 more
doaj   +1 more source

Study of External Characteristics of Hydraulic Electromagnetic Regenerative Shock Absorber

World Journal of Engineering and Technology, 2019
According to the composition and the principle of the liquid-electric energy-sensing damper, the corresponding hydraulic regenerative model is designed. In this paper, an advanced type of shock absorber combined with the mechanical and electromagnetic hydraulic structure has been proposed that recycles the energy dissipated by shock absorber in the ...
Muhammad Yousaf Iqbal, Zhifei Wu, Guangzhao Xu, Syed Arslan Bukhari   +3 more
openaire   +2 more sources

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

NextGenerationEU Landing: Assessing the Territorial Allocation of Italy's Recovery and Resilience Facility Funding

Journal of Regional Science, EarlyView.
ABSTRACT In response to the COVID‐19 crisis, the European Union introduced NextGenerationEU, its largest stimulus package to date. We focus on Italy, the program's largest beneficiary, and analyse the territorial distribution of funds. Although centrally coordinated, most expenditures were awarded through calls and implemented by local governments ...
Francesco Scotti, Carlo Caporali, Davide Luca   +2 more
wiley   +1 more source

A computational method for high-frequency oleodynamics: application to hydraulic-shock-absorber designs [PDF]

, 1998
To predict high-frequency oil-flow phenomena in hydraulic-shock-absorber designs, a mathematical- physical model is proposed. The model consists of the 2-D unsteady Euler equations in axial-symmetric coordinates and an appropriate equation of state for ...
Michielsen, P.F.M. (Paul), Koren, B. (Barry), Wesseling, P., Koren, B., Koren, Barry, Koren, B Barry, Michielsen, P.F.M., Michielsen, PFM, Wesseling, P, Michielsen, Paul, Kars, J.W., Kars, JW, Kars, J.-W.   +12 more
core  

Long‐term stability of transcrestal sinus augmentation

Periodontology 2000, EarlyView.
Abstract Transcrestal sinus augmentation has emerged as a minimally invasive alternative to lateral window techniques for vertical bone augmentation in the edentulous maxilla. Since its early introduction and modification over the last several decades, this technique has demonstrated predictable outcomes for implant placement in regions with limited ...
Sandra H. Stuhr, Muhammad H. A. Saleh, Tiziano Testori, Hom‐Lay Wang, Ann M. Decker   +4 more
wiley   +1 more source

Vehicle suspension with a regenerative hydraulic shock-absorber and with a system for adjusting the attitude of the vehicle

, 2017
A suspension including a spring interposed between the body (B) of the vehicle and the wheel (W); a regenerative hydraulic shock-absorbing unit comprising a hydraulic shock-absorber arranged parallel to the spring, a motor and pump unit with a volumetric
Piero Conti, Giordano Greco, Andrea Tonoli, Nicola Amati, Andrea Nepote, Renato Galluzzi   +5 more
core  

China's Export Surge and the Persistence of Machinery Competitiveness: Panel Evidence From 25 Countries

The World Economy, EarlyView.
ABSTRACT China's rapid ascent as a global machinery exporter raises fundamental questions about competitive resilience of incumbent economies. This paper examines whether China's gains in revealed comparative advantage (RCA) are associated with declining competitive positions among 24 incumbent economies and whether such changes coincide with ...
Hyungbae Gil, Oonkyu Lee, Hangjung Zo
wiley   +1 more source