Results 131 to 140 of about 32,169 (305)

Mitral Transcatheter Edge‐to‐Edge Repair in Patients With Advanced Heart Failure: A Single‐Center Experience and Insights Into Anatomical and Clinical Determinants of Procedural Complexity

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Advanced heart failure (HF) remains a clinical challenge, and mitral transcatheter edge‐to‐edge repair (M‐TEER) has emerged as a potential bridging strategy. Aims To describe the clinical outcomes of M‐TEER in a single‐center cohort of patients with advanced HF and to identify anatomical and clinical features potentially associated ...
Pedro Castilhos de Freitas Crivelaro   +8 more
wiley   +1 more source

Controlled partial embedding of carbon nanotubes within flexible transparent layers [PDF]

open access: yes, 2008
Applications of carbon nanotubes (CNTs) like field emission displays, super-capacitors, and cell growth scaffolds can benefit from controllable embedding of the CNTs in a material such that the CNTs are anchored and protrude a desired length.
Gharib, Morteza   +2 more
core  

Hydroprocessing of synthetic kerosene over a non‐sulphided Ni/Al2O3 catalyst: Impact of alcohols and ketones on alkene conversion

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Synthetic jet fuel containing non‐petroleum‐derived kerosene can be produced from synthetic kerosene obtained through processes that include a hydroprocessing step. The potential use of non‐sulphided (reduced) nickel supported on alumina (Ni/Al2O3) was evaluated as an alternative to sulphided catalysts to saturate alkenes in sulphur‐free ...
Garima Chauhan   +3 more
wiley   +1 more source

Data‐driven simulation of crude distillation using Aspen HYSYS and comparative machine learning models

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Integrated Aspen HYSYS–machine learning framework for predicting product yields and quality variables. Abstract Crude oil refining is a complex process requiring precise modelling to optimize yield, quality, and efficiency. This study integrates Aspen HYSYS® simulations with machine learning techniques to develop predictive models for key refinery ...
Aldimiro Paixão Domingos   +3 more
wiley   +1 more source

EXPERIMENTAL STUDY OF HEAT TRANSFER OF AXISYMMETRIC AIR IMPINGEMENT FROM AN ORIFICE ON A MODIFIED SURFACE

open access: yesJournal of Engineering and Sustainable Development, 2016
Impingement cooling jet is widely used in different industrial applications due to high rate of heat removal on the surface being subjected to impinging. Ribs are used to enhance convective heat transfer by the promotion of higher turbulence levels. The
Adnan A. Abdul Rasool   +1 more
doaj  

Analysis of Flow Field Structure Characteristics of Dual Impinging Jets at Different Velocities

open access: yesAerospace
The flow structure and unsteady evolution characteristics of dual impinging jets represent a flow problem of significant engineering importance in the aerospace field.
Yifan Zhao   +5 more
doaj   +1 more source

Sudan at War With Itself: Civilian Devastation in the Civil War

open access: yesConflict Resolution Quarterly, EarlyView.
ABSTRACT A civil war is raging in Sudan between the Sudan Armed Forces (SAF) and the Rapid Support Forces (RSF) along with militia groups. Beginning on April 15, 2023, and continuing at least to this writing (October 15, 2025), civilian noncombatants have been subjected to bombings, beatings, torture, shootings, rape, and murder on a large scale. Since
Daniel Rothbart   +3 more
wiley   +1 more source

Study of liquid jet impingement on screens [PDF]

open access: yes
A model is presented for an unconfined flow, such as a free jet, impinging on a screen which incorporates the influence of liquid deflection by the screen. The boundary layer blockage coefficient is introduced.
Dodge, F. T., Ricker, R. E.
core   +1 more source

An Estimation of the Heat Load Distribution on the Divertor Target Using the CSD Model

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Handling the heat load on the divertor target is a critical issue in the design of fusion reactors. Estimating the heat load, supported by computationally efficient simulations with varying design parameters, provides valuable input to high‐level design discussions and the development of design guidelines.
Kazuhiro Yamada   +4 more
wiley   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu   +8 more
wiley   +1 more source

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