Results 111 to 120 of about 25,899 (279)

Dental composites: a comprehensive review on formulation, properties and recent developments

open access: yesPolymer International, EarlyView.
Dental composites are essential in modern restorative dentistry; this review covers their development, composition, key properties and recent advances, highlighting new technologies for optimizing materials and improving clinical outcomes. Abstract Dental composites have evolved considerably since their introduction, becoming the cornerstone of modern ...
Rayenne Latoui   +2 more
wiley   +1 more source

Testing of the flowing part design method in the centrifugal gas compressor [PDF]

open access: yes, 2016
В работе кратко описывается разработанная методика проектирования проточной части центробежного компрессора, опирающаяся на подходы отечественных авторов.
Blinov, V. L.   +5 more
core  

Efficacy evaluation of pneumatic solid set canopy delivery system to control powdery mildew (Erysiphe necator) in Washington vineyards

open access: yesPest Management Science, EarlyView.
The findings of this study indicate that powdery mildew control achieved with the pneumatic solid set canopy delivery system (PSD‐SSCDS) was comparable with that of a conventional airblast sprayer. These results highlight the PSD‐SSCDS as a promising alternative spray technology. Abstract BACKGROUND In this study, a previously optimized pneumatic spray
Dattatray G Bhalekar   +4 more
wiley   +1 more source

Analysis of the impact of rotor speed variations on the vibration of centrifugal compressor units

open access: yesYou-qi chuyun
ObjectiveThe rotor speed of operating centrifugal compressor units needs to be regulated according to working conditions and output requirements. Within the operational speed range, the rotors typically experience fluctuating vibrations in response to ...
Dongzhuo JIA   +5 more
doaj   +1 more source

Asynchronous vibration problem of centrifugal compressor [PDF]

open access: yes
An unstable asynchronous vibration problem in a high pressure centrifugal compressor and the remedial actions against it are described. Asynchronous vibration of the compressor took place when the discharge pressure (Pd) was increased, after the rotor ...
Fujikawa, T., Ishiguro, N., Ito, M.
core   +1 more source

A Review of Metal–Organic Framework (MOF) Based Active Food Packaging: Materials Selection, Cellulose Matrices Current Advances, Synthesis and Characterizations

open access: yesPackaging Technology and Science, EarlyView.
Active packaging offers an effective approach to extending food shelf life. This review summarizes the past decade of progress in metal‐organic framework (MOF)‐based active food packaging, highlighting material selection, characterization, challenges, and future prospects.
Belladini Lovely   +4 more
wiley   +1 more source

DEVELOPMENT OF CENTRIFUGAL COMPRESSORS [PDF]

open access: yes, 1961
Coolant flow for gas-cooled in-pile loops must be supplied during irradiation test runs. A centrifugal compressor has been designed and developed for circulating helium at volume flows from 75 to 250 acfm at compressor suction conditions of 400 psi and 600 deg F.
openaire   +2 more sources

NIR‐Responsive Nano‐Integrated Magnesium Phosphate Cement Promotes Bone Regeneration via Osteoblast‐Exosome‐Osteoclast Crosstalk

open access: yesRare Metals, EarlyView.
ABSTRACT The limited osteogenic capacity of magnesium phosphate cement (MPC) has constrained its biomedical applications, underscoring the necessity to develop MPC with enhanced physical properties and bone‐forming capabilities. In this study, a multifunctional MPC system was developed by incorporating zoledronic acid‐loaded near‐infrared (NIR ...
Bin Wang   +8 more
wiley   +1 more source

Study of Advanced Propulsion Systems for Small Transport Aircraft Technology (STAT) Program [PDF]

open access: yes
Definitions of takeoff gross weight, performance, and direct operating cost for both a 30 and 50 passenger airplane were established. The results indicate that a potential direct operating cost benefit, resulting from advanced technologies, of ...
Baerst, C. F.   +2 more
core   +1 more source

Advances in research on impulse hydro‐turbine technology

open access: yesRiver, EarlyView.
Abstract To accelerate the development of impulse hydro‐turbines and support the efficient utilization of hydropower resources in Southwest China, this paper examines the background, historical development, and research progress of impulse hydro‐turbines.
Xiaochao Li   +7 more
wiley   +1 more source

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