بحث بسيط
السجلات المعروضة 2591 -- 2600 من 2627
Mapping Europe renewable energy landscape: Insights into solar, wind, hydro, and green hydrogen production
(
Elsevier
, 2024 , Article)
The study offers an in-depth examination of the capabilities and output of renewable energy sources, specifically focusing on solar, wind, hydroelectric, and green hydrogen technologies, within 27 countries of the European ...
Investigation on the effect of several parameters involved in the biodegradation of polyethylene (PE) and low-density polyethylene (LDPE) under various seawater environments
(
Elsevier
, 2024 , Article)
This work investigates the biodegradation of polyethylene (PE) and low-density polyethylene (LDPE) and the leaching of their harmful additives. Micro/macro-plastics of both types were subjected to different laboratory-controlled ...
Some α − ϕ-Fuzzy Cone Contraction Results with Integral Type Application
(
Hindawi Limited
, 2021 , Article)
In this paper, we define α-admissible and α-ϕ-fuzzy cone contraction in fuzzy cone metric space to prove some fixed point
theorems. Some related sequences with contraction mappings have been discussed. Ultimately, our ...
Students Impression About Using Mobile Phones in Classroom
(
Kassel University Press GmbH
, 2020 , Article)
Mobile phones are widely used by university students and there is a controversial topic whether students should be able to use them freely during lectures. A survey was distributed seeking student opinions on using mobile ...
On certain estimates for marcinkiewicz integrals and extrapolation
(
Universidad de Barcelona
, 2009 , Article)
We obtain Lp estimates for parametric Marcinkiewicz integrals associated to polynomial mappings and with rough kernels on the unit sphere as well as on the radial direction. These estimates will allow us to use an extrapolation ...
Boundedness of rough integral operators on triebel-lizorkin spaces
(
Universitat Autonoma de Barcelona, Seccio de Matematiques
, 2012 , Article)
We prove the boundedness of several classes of rough integral operators on Triebel-Lizorkin spaces. Our results represent improvements as well as natural extensions of many previously known results.
The cycle-complete graph Ramsey number r(C6,K8)≤38
(
Tokyo University of Science
, 2008 , Article)
The cycle-complete graph Ramsey number
r
(
C
m
,
K
n
)
is the smallest integer
N
such that every graph
G
of order
N
contains a cycle
C
m
on m vertices or has independent number
α
(
G
)
≥
n
. ...
Towards a ‘democratic knowledge’ turn? Knowledge production in the age of the Arab Spring
(
Taylor & Francis
, 2015 , Article)
This contribution (and the special issue as a whole) marks a modest attempt to initiate an investigation into what is called here ‘democratic knowledge’. This is done with special reference to the Arab Maghrib (in this ...
Insights into the interaction between mineral formation and heavy metals immobilization, mediated by Virgibacillus exopolymeric substances
(
Elsevier
, 2024 , Article)
Heavy metal pollution poses significant risks to both the environment and human health due to their toxicity, long residence times, and their ability to bioaccumulate and bio magnify across the food chain. To address this ...
An efficient image encryption scheme based on fractal Tromino and Chebyshev polynomial
(
Springer International Publishing
, 2021 , Article)
The security of digital content during transmission and storage through insecure communication links and databases is a challenging issue in today's world. In this article, an encryption scheme based on fractal Tromino and ...