Results 11 to 20 of about 3,506,749 (365)

A new CHF mechanism model for a narrow rectangular channel based on bubble dynamics characteristics

open access: yesHe jishu, 2022
Background Narrow rectangular channels are widely used in major thermal flow fields because of the compact structure and large heat transfer area. Purpose This study aims to improve the prediction method of critical heat flux in the ...
YAN Meiyue   +4 more
doaj   +1 more source

Flow patterns visualization and triggering mechanisms of critical heat flux in narrow rectangular channels with different gap size

open access: yesHe jishu, 2023
BackgroundNarrow rectangular channels are widely used in various fields because of their compact structure and other advantages.PurposeThis study aims to improve the prediction method of critical heat flux (CHF) in narrow rectangular channels for reactor
YAN Meiyue   +4 more
doaj   +1 more source

Low-grade Gliomas

open access: yesCONTINUUM: Lifelong Learning in Neurology, 2011
ABSTRACT Purpose of Review: Low-grade gliomas present vexing management issues for neuro-oncologists. The relatively long survival compared to other brain tumors makes consideration of treatment toxicity, and thus timing of potentially damaging interventions such as surgery, radiation, and chemotherapy, crucial ...
Sally-Ann Price   +2 more
openaire   +7 more sources

Laccase pretreatment of wheat straw: effects of the physicochemical characteristics and the kinetics of enzymatic hydrolysis

open access: yesBiotechnology for Biofuels, 2019
Background Wheat straw, the most abundant lignocellulosic biomass in China, is rich in cellulose that can be hydrolyzed and then converted into biofuels, such as bioethanol and biohydrogen.
Zhichao Deng   +5 more
doaj   +1 more source

Pediatric Low-Grade Gliomas [PDF]

open access: yesCancers, 2020
Brain tumors constitute the largest source of oncologic mortality in children and low-grade gliomas are among most common pediatric central nervous system tumors. Pediatric low-grade gliomas differ from their counterparts in the adult population in their histopathology, genetics, and standard of care.
Collins, Kelly L., Pollack, Ian F.
openaire   +3 more sources

Confinement and Graded Partition Functions for $\mathcal{N}=4$ SYM [PDF]

open access: yesPhys. Rev. D 103, 066013 (2021), 2020
Gauge theories with confining phases at low temperatures tend to deconfine at high temperatures. In some cases, for example in supersymmetric theories, confinement can persist for all temperatures provided the partition function includes a grading by $(-1)^F$.
arxiv   +1 more source

African American men with low-grade prostate cancer have increased disease recurrence after prostatectomy compared with Caucasian men. [PDF]

open access: yes, 2015
PURPOSE: To explore whether disparities in outcomes exist between African American (AA) and Caucasian (CS) men with low-grade prostate cancer and similar cancer of the prostate risk assessment-postsurgery (CAPRA-S) features following prostatectomy (RP ...
Deville, Curtiland   +9 more
core   +2 more sources

Conformally Graded Metamaterials for Elastic Wave Guidance [PDF]

open access: yes, 2023
Although metamaterials have been widely used for controlling elastic waves through bandgap engineering, the directed guidance of stress waves in non-periodic structures has remained a challenge. This work demonstrates that spatially graded metamaterials based on conformal mappings present a rich design space for controlling and attenuating wave motion -
arxiv   +1 more source

Comparative Life Cycle Assessment of Merging Recycling Methods for Spent Lithium Ion Batteries

open access: yesEnergies, 2021
An urgent demand for recycling spent lithium-ion batteries (LIBs) is expected in the forthcoming years due to the rapid growth of electrical vehicles (EV). To address these issues, various technologies such as the pyrometallurgical and hydrometallurgical
Zhiwen Zhou   +3 more
doaj   +1 more source

Relative impacts of different grade-scales on student success in introductory physics [PDF]

open access: yesPhys. Rev. Phys. Educ. Res. 16, 020114 (2020), 2019
In deciding on a student's grade in a class, an instructor generally needs to combine many individual grading judgments into one overall judgment. Two relatively common numerical scales used to specify individual grades are the 4-point scale (where each whole number 0-4 corresponds to a letter grade) and the percent scale (where letter grades A through
arxiv   +1 more source

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