Results 31 to 40 of about 659,927 (246)

Sub‐Nanometer Curvature Unlocks Quantum Orbital Flexoelectricity in Graphene

open access: yesAdvanced Materials, EarlyView.
In self‐assembled, reproducible, large‐area, quasi‐pristine graphene nanowrinkles, extreme curvature forces out‐of‐plane π‐electrons toward hybridization, driving a transition from classical to quantum orbital flexoelectricity. As curvature approaches the fundamental physical limit set by the C─C bond length, the resulting polarization increases by ...
Sathvik Ajay Iyengar   +8 more
wiley   +1 more source

Fire resistance evaluation of rice husk ash concrete

open access: yesHeliyon, 2018
This paper studied the fire resistance of rice husk ash concrete. An experimental method was adopted as the research design in this work, which produced one hundred and eighty four (184) concrete specimens with the addition of rice husk ash in weighted ...
R.I. Umasabor, J.O. Okovido
doaj   +1 more source

Covalent Attachment of Quaternary Ammonium Group to Geopolymer Surface With Silane Coupling Agent to Enable Simultaneous Adsorption of Cations and Anions

open access: yesAdvanced Materials Interfaces, EarlyView.
Modification of geopolymer surface with a silane coupling agent containing quaternary ammonium group enables the development of dual‐functioning ion exchanger for both cations and anions. In the present study, the performance of this material was demonstrated for the uptake of ammonium and nitrate from water.
Yangmei Yu   +7 more
wiley   +1 more source

Pengaruh Penggunaan Limbah Steel Slag Sebagai Pengganti Agregat Kasar Ukuran ½” dan 3/8” pada Campuran HRS_WC

open access: yesDinamika Rekayasa, 2017
Hot Rolled Sheet (HRS) merupakan campuran aspal yang menggunakan gradasi senjang dengan kandungan agregat kasar, agregat halus dan memiliki kandungan aspal yang tinggi sehingga dibutuhkan mutu campuran beraspal yang baik untuk menghasilkan perkerasan ...
Anita Rahmawati
doaj   +1 more source

Redox‐Confined Interfacial Polymerization Enables Mechanically Robust and Self‐Adhesive Nanofilms

open access: yesAdvanced Materials Interfaces, EarlyView.
Redox‐confined polymerization of a simple thiol monomer at a water‐organic interface generates robust freestanding films with nanoscale thickness. The resulting disulfide‐crosslinked nanofilms combine high stiffness with intrinsic adhesion to soft substrates, enabling conformal contact with artificial skin without additional functionalization.
Luana Gazzato   +4 more
wiley   +1 more source

Probabilistic analysis and resistance factor calibration for deep foundation design using Monte Carlo simulation

open access: yesHeliyon, 2018
The method of incorporating the sources of parameter uncertainty is crucial when conducting probabilistic analysis for service limit state (SLS) design of a deep foundation.
Thuy Vu, Erik Loehr, Douglas Smith
doaj   +1 more source

Testing and Simulation of Multilayer Polyvinylidene Fluoride‐Based Piezoelectric Energy Harvester Devices

open access: yesAdvanced Materials Technologies, EarlyView.
The study considers the use of polymer/dielectric‐based multilayers piezoelectric Energy Harvesters (EH) to produce an output voltage and current, by exploiting the mechanical energy provided by human organs movements. In particular, the heart motion is considered from the kinematic viewpoint, and a multiphysics theoretical model is developed to assess
Hamdi Ezzin   +5 more
wiley   +1 more source

Quantifying the impact of coefficient of thermal expansion of overlay concrete on unbonded concrete overlay performance

open access: yesHeliyon, 2018
With the advancement in pavement design and performance analysis procedures, the coefficient of thermal expansion (CTE) of concrete has emerged as a significant design input with a direct impact on concrete pavement performance parameters including ...
Gauhar Sabih   +2 more
doaj   +1 more source

Multilayer Biobased Poly(ethylene furanoate)/Graphene Oxide Nanofibrous Membranes With Directional Water Transport for Efficient Microplastics Filtration

open access: yesAdvanced Materials Technologies, EarlyView.
A self‐assembled multilayer biobased PEF/GO nanofibrous membrane was developed by electrospinning for efficient PLA microplastics (MPs) filtration. The membrane combines superhydrophilicity, directional water transport, mechanical robustness, and a synergistic size‐exclusion interception and electrostatic repulsion MPs separation mechanism, enabling ...
Juraij Kandiyil   +6 more
wiley   +1 more source

Potensi Tenaga Listrik Dan Penggunaan Turbin Ulir Untuk Pembangkit Skala Kecil Di Saluran Irigasi Banjarcahyana

open access: yesDinamika Rekayasa, 2017
Potensi tenaga listrik mikrohidro tidak hanya terdapat di sungai namun juga terdapat di saluran irigasi. Berbeda dengan sungai, pada saluran irigasi umumnya tidak dijumpai beda elevasi yang besar.
Mohammad Anggara Setiarso   +2 more
doaj   +1 more source

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