Results 61 to 70 of about 8,150,489 (252)

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour   +5 more
wiley   +1 more source

Rectangular microstrip patch antenna using u-shaped defected ground structure / Muhammad Syaril Harun [PDF]

open access: yes, 2013
This thesis presents a rectangular microstrip patch antenna with U-shaped Defected Ground Structure (DGS) structure. The antenna design is suitable for particular wireless communication application such as WiFi and WLAN.
Harun, Muhammad Syaril
core  

A Reconfigurable Filter Using Defected Ground Structure for Wideband Common-Mode Suppression

open access: yesIEEE Access, 2019
A wideband common-mode (CM) suppression reconfigurable filter is proposed for high-speed all-pass differential circuits. The filter adopts three varactor-loaded compact defected ground structures (DGSs) to achieve continuous reconfigurability in its ...
Zhibin Zeng   +2 more
doaj   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil   +2 more
wiley   +1 more source

RANCANG BANGUN ANTENA MIKROSTRIP DENGAN DGS (Defected Ground Structure) UNTUK JARINGAN KOMUNIKASI NIRKABEL 5G [PDF]

open access: yes, 2018
Defected Ground Structure (DGS) merupakan salah satu cara untuk menekan gelombang permukaan yang sering dipakai pada antena mikrostrip dan memiliki fungsi sebagai radiator serta resonator kedua.
Annisa, Nevi
core  

Two Element Microstrip Antenna Array with Defected Ground Structure [PDF]

open access: yes, 2008
Two Element Microstrip Antenna Array with Defected Ground Structure. This paper presents a two element microstrip antenna array using trapezium shape defected ground structure (DGS). The DGS is inserted in the ground plane between two elements of antenna
Rahardjo, Eko Tjipto   +3 more
core   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

Bandwidth enhanced CPW fed elliptical wideband antenna with slotted defected ground structure

open access: yes, 2018
In this article, a simple curved elliptical coplanar wave guide fed antenna is proposed for wideband applications. An elliptical shaped model of multiband antenna is converted as notch band antenna with placement of slots in the radiating structure and ...
M Purna Kishore, B T P Madhav
core   +1 more source

Quasi-static analysis of defected ground structure

open access: yes, 2005
A quasi-static equivalent circuit model of a dumbbell shaped defected ground structure (DGS) is developed. The equivalent circuit model is derived from the equivalent inductance and capacitance developed due to the perturbed returned current path on the ...
Isaac Balbin (20200902)   +3 more
core   +1 more source

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