Results 81 to 90 of about 464,477 (298)

Osteohistology of two phorusrhacids reveals uninterrupted growth strategy

The Anatomical Record, EarlyView.
Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer, Christian Cooper, Jingmai O'Connor   +2 more
wiley   +1 more source

Early stages of tooth development in the harbor porpoise Phocoena phocoena

The Anatomical Record, EarlyView.
Abstract Here we describe the stages of tooth development in toothed whales on the basis of the harbor porpoise (Phocoena phocoena). The aim of the study was to find out whether these stages are identical to those of other mammals analyzed so far although toothed whales are homodont and monophyodont.
Lasse M. Mathes, Lennart Müller‐Thomsen, Stefan Huggenberger   +2 more
wiley   +1 more source

3D-printed low-cost choke corrugated Gaussian profile horn antenna for Ka-band. [PDF]

Sci Rep, 2023
Zárate YD, Torres F, Rodriguez M, Pizarro F.   +3 more
europepmc   +1 more source

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

The Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini, Pedro L. B. Pruciano, Brodsky D. M. Farias, Marina B. Soares   +3 more
wiley   +1 more source

Horn antenna. [PDF]

, 2014
Završni rad pod naslovom "Pravokutne lijevak antene za dva frekvencijska opsega" podijeljen je na tri glavne cjeline. Prva cjelina je teorijski dio u kojem se upoznajemo s antenama, njihovim parametrima i pravokutnim lijevak antenama.
Šarić, Antonio
core   +2 more sources

Dual-Mode Conical Horn Antenna with 2-D Azimuthal Monopulse Pattern for Millimeter-Wave Applications. [PDF]

Sensors (Basel), 2023
Piroutiniya A, Rasekhmanesh MH, Masa-Campos JL, Calero-Rodríguez JL, Ruiz-Cruz JA.   +4 more
europepmc   +1 more source

“Hands‐On” white matter anatomy: Using Air Anatomy gestures and tractography on simple brain sections to enhance teaching of white matter directions

Anatomical Sciences Education, EarlyView.
Abstract Teaching white matter (WM) anatomy to undergraduates is challenging. This is partly because WM fibers are oriented intricately and Klingler's dissection, the gold standard method used to demonstrate it, often requires time, advanced anatomical knowledge, and refined dissection skills.
Doris George Yohannan, Rohini Punja, Thomas Iype, Chandrasekharan Kesavadas, Bejoy Thomas, Kannanvilakom Govindapillai Umesan, Aswathy Maria Oommen, Usha Devi Keezhathil Bhargavi   +7 more
wiley   +1 more source

Design and analysis of a dual-band quad-ridge horn antenna using 3D printing and PLA for wireless communication enhancement performance

, 2023
In this study, we used 3D printing technology to develop and create a quad-ridged horn antenna for use in GSM mid-band and 5G networks. This antenna can function on two different frequencies, 1.8 and 3.5 GHz.
Othman, Mohd Azlishah, Misran, Mohamad Harris, Jaafar, Abd Shukur, Hassan, Nurmala Irdawaty, Abd Manap, Redzuan, Said, Maizatul Alice Meor, Adnan, Nur Saqirah, Suhaimi, Shadia   +7 more
core   +1 more source

Broadband Circularly Polarized Conical Corrugated Horn Antenna Using a Dielectric Circular Polarizer. [PDF]

Micromachines (Basel), 2022
Xiao J, Tian J, Ding T, Li H, Ye Q.
europepmc   +1 more source

Design and Measurements of a C-Band Array for High Power High Bandwidth SAR Application [PDF]

, 2013
The design and test of a dual linear polarized C-Band antenna for the airborne Synthetic Aperture Radar (SAR) system of DLR is presented.
Di Maria, Alberto, Horn, Ralf, Reigber, Andreas, Limbach, Markus   +3 more
core