Results 81 to 90 of about 302,140 (281)

A Compact Dual Bandpass Filter Using Dual Composite Right-/Left-Handed and Open-Loop Ring Resonators for 4G and 5G Applications [PDF]

open access: yesRadioengineering
In this paper a very compact design of a dual-band band pass filter (D-BPF) using dual composite right-/left-handed (D-CRLH) and open-loop ring (OLR) resonators is presented. To overcome the frequency ratio limitations of D-CLRH resonators technique, the
X. P. Dao   +7 more
doaj  

Investigation of Resonance Characteristics of More Than 10 000 Metal‐Coated Silicon MEMS Cantilevers Using Machine Learning

open access: yesAdvanced Engineering Materials, EarlyView.
More than 10 000 metal‐coated silicon MEMS cantilevers are fabricated and characterized to build a large‐scale experimental dataset spanning multiple vibrational modes. Machine learning algorithms are benchmarked to predict resonance frequency and quality factor, with ensemble based models achieving accuracy approaching experimental uncertainty.
Sina Zare Pakzad   +8 more
wiley   +1 more source

Influence of Fe Particle Size Distribution on Chemical Homogeneity, Microstructure, and Crack Formation in Fe–SiC Powder Blends Processed by PBF‐LB/M

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of Fe particle size on in situ alloying of Fe–SiC powder blends in PBF‐LB/M is revealed. Contrary to expectations, the coarser Fe fraction provides a broader crack‐free processing window and slightly improved elemental homogeneity while producing higher but more variable hardness. The results highlight a complex trade‐off between particle
Anna Luise Strauch   +2 more
wiley   +1 more source

The Association of 4G/5G Polymorphism of PAI-1-675 Gene with Clinicopathologic Features of Thyroid Tumors in Iranian Azeri Turkish Patients [PDF]

open access: yesJournal of Kerman University of Medical Sciences, 2017
Background: Due to the lack of information about the role of 4G/5G polymorphism of PAI-1 Gene in susceptibility to thyroid tumors, this study was performed to evaluate the potential effects of this polymorphism on clinicopathologic features of thyroid ...
Nasser Pouladi   +2 more
doaj  

A secure billing architecture for 4G wireless networks [PDF]

open access: yes, 2007
Fourth Generation (4G) wireless networks allow ubiquitous pervasive data and voice connections for mobile users. Users will no longer have a single relationship with one access provider, but a relationship with a Biller or Agent which enables them access
Looi, Mark H.   +2 more
core  

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

A Look Into the 4G Crystal Ball [PDF]

open access: yes, 2006
The time for reflections and visions about the Fourth Generation of Wireless Mobile Communication Systems (4G) is getting closer to the X hour, therefore the research community has to finally declare how 4G will really look like. Besides the no-boundaries visions, in this paper we have a look into the 4G crystal ball, attempting to define the ...
Frattasi, Simone   +2 more
openaire   +2 more sources

Study of 4G/5G Mutations Prevalence in Plasminogen Activator Inhibitor-1 (PAI-1) Gene in Iranian Women with Ectopic Pregnancy [PDF]

open access: yesMajallah-i dānishgāh-i ̒ulūm-i pizishkī-i Arāk, 2017
Background: Ectopic pregnancy is a type of pregnancy in which implantation of zygote occurs out of the uterine cavity. One of the most important problems is bleeding. On the other hand, Plasminogen Activator Inhibitor-1(PAI-1) gene is one of the involved
Zahra Sadeghi   +3 more
doaj  

MIPv6 Experimental Evaluation using Overlay Networks [PDF]

open access: yes, 2007
The commercial deployment of Mobile IPv6 has been hastened by the concepts of Integrated Wireless Networks and Overlay Networks, which are present in the notion of the forthcoming generation of wireless communications.
Cottingham, David   +5 more
core  

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