Results 31 to 40 of about 1,301,140 (167)

Influence of impact velocity on dynamic performance of reinforced concrete beams strengthened with CFRP

open access: yesShenzhen Daxue xuebao. Ligong ban, 2022
In order to study the impact resistance and dynamic damage rule of reinforced concrete (RC) beams strengthened with carbon fiber reinforced plastics (CFRP) under different impact velocities, four CFRP strengthened RC beams were tested by using a drop ...
ZHANG Yafang   +3 more
doaj   +1 more source

Economic Impact of Antimicrobial Resistance [PDF]

open access: yesEmerging Infectious Diseases, 2001
One reason antimicrobial-drug resistance is of concern is its economic impact on physicians, patients, health-care administrators, pharmaceutical producers, and the public. Measurement of cost and economic impact of programs to minimize antimicrobial-drug resistance is imprecise and incomplete.
openaire   +3 more sources

The Effect of Steel Fiber Content on the Workability and Mechanical Properties of Slag-Based/Fly Ash-Based UHPC

open access: yesBuildings
This study investigates the influence of steel fiber content (0~3% by volume) on the workability and mechanical properties of ultra-high-performance concrete (UHPC) incorporating slag or fly ash.
Gaoyu Liao   +4 more
doaj   +1 more source

Shape Memory Alloy Hybrid Composites for Improving Impact Properties

open access: yesMedžiagotyra, 2021
This paper investigates the method to improve the property that can decrease the impact response of composite plate. Embedding the super-elastic shape memory alloy wires into composite plates has increased the attention of material researchers.
Chuanliang SHEN   +6 more
doaj   +1 more source

Research progress on impact resistance wing fuel tank cover

open access: yesHangkong gongcheng jinzhan, 2023
The wing fuel tank cover and its surrounding wing outer plate together form a part of the aircraft's aerodynamic shape. During the service process of an aircraft,the fuel tank cover is inevitably hit by foreign objects,ensuring the impact resistance of ...
CAI Xuanlong   +4 more
doaj   +1 more source

Strength and durability properties of concrete made with recycled coarse aggregate and seashore sand

open access: yesJurnal Ilmiah SINERGI, 2023
The process of depletion of sources of natural aggregates poses challenges to produce technically and environmentally suitable concrete. Aggregate compositions found in construction and demolition (C&D) waste offer potential alternatives to natural ...
D. Kalaimani, G. Srinivasan
doaj   +1 more source

Detrimental Effects of βo-Phase on Practical Properties of TiAl Alloys

open access: yesMetals
The TNM alloy, a βo-phase-containing TiAl alloy, has been withdrawn from use as a last-stage turbine blade in commercial jet engines as it suffered frequent impact fractures in service, raising doubts regarding the necessity of the βo-phase in practical ...
Toshimitsu Tetsui, Kazuhiro Mizuta
doaj   +1 more source

Dynamic Response of Fiber Reinforced Polymer Bar Reinforced Concrete Beams under Low Velocity Impact

open access: yesTaiyuan Ligong Daxue xuebao, 2021
To study the dynamic response characteristics of concrete beams with Fiber Reinforced Polymer Bars(FRP), the failure process, energy conversion, and dissipation of FRP beams without stirrups under different impact velocity, longitudinal reinforcement ...
Zhihong MA, Gang MA, Zhihua WANG
doaj   +1 more source

Impact of chloroquine resistance on malaria mortality

open access: yesComptes Rendus de l'Académie des Sciences - Series III - Sciences de la Vie, 1998
Over 12 years, from 1984 to 1995, we conducted a prospective study of overall and malaria specific mortality among three rural populations in the Sahel, savanna and forest areas of Senegal. The emergence of chloroquine resistance has been associated with a dramatic increase in malaria mortality in each of the studied populations. After the emergence of
Trape, Jean-François   +9 more
openaire   +4 more sources

Correlation between Processing, Morphology and Impact Resistance of PBT/ABS Blends [PDF]

open access: yesMaterials Research, 2017
To understand the processing influence in an intermeshing corotating twin-screw extrusion (ICTSE) on the morphology and impact properties of the uncompatibilized PBT/ABS (70/30) blend, it was submitted to different processing parameters. In this way both
André Cortegoso Prezenszky   +3 more
doaj   +1 more source

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