Results 11 to 20 of about 23,328 (215)

Headache: Relief is possible

South African Family Practice, 1995
No abstract available.
lna Diener
doaj   +1 more source

Design of X-Band GaN LNA MMIC with Switched Impedance Network for Improved Noise Figure [PDF]

Journal of Electromagnetic Engineering and Science
In this work, an X-band gallium nitride (GaN) low-noise amplifier (LNA) monolithic microwave integrated circuit (MMIC) with a switched impedance network for improved noise performance is designed and fabricated using a 0.25 μm GaN WIN-semiconductor ...
Byeong-Uk Lee
doaj   +1 more source

Spatiotemporal dynamics of high and low nucleic acid-content bacterial communities in Chinese coastal seawater: assembly process, co-occurrence relationship and the ecological functions

Frontiers in Microbiology, 2023
Studies of high nucleic acid-content (HNA) and low nucleic acid-content (LNA) bacterial communities are updating our view of their distributions and taxonomic composition.
Wei Hu, Ningning Zheng, Yadi Zhang, Mark Bartlam, Yingying Wang   +4 more
doaj   +1 more source

The optimal design of an LNA by using of CAD tool based on the modified inclined planes system optimization [PDF]

مدیریت مهندسی و رایانش نرم, 2023
Low Noise Amplifier (LNA) is the first critical and important element in the designing of analog VLSI systems and wireless communications technology.
Najmeh Shahraki, Ali Mohammadi
doaj  

W‐Band MMIC chipset in 0.1‐μm mHEMT technology

ETRI Journal, 2020
We developed a 0.1‐μm metamorphic high electron mobility transistor and fabricated a W‐band monolithic microwave integrated circuit chipset with our in‐house technology to verify the performance and usability of the developed technology.
Jong‐Min Lee, Woo‐Jin Chang, Dong Min Kang, Byoung‐Gue Min, Hyung Sup Yoon, Sung‐Jae Chang, Hyun‐Wook Jung, Wansik Kim, Jooyong Jung, Jongpil Kim, Mihui Seo, Sosu Kim   +11 more
doaj   +1 more source

DIGITAL TWIN: A HBIM-BASED METHODOLOGY TO SUPPORT PREVENTIVE CONSERVATION OF HISTORIC ASSETS THROUGH HERITAGE SIGNIFICANCE AWARENESS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
During preliminary phases of conservation projects, a considerable amount of heterogeneous datasets are produced, gathered, analysed and interpreted.
P. Jouan, P. Hallot
doaj   +1 more source

An Experimental Investigation of the Degradation of CMOS Low-Noise Amplifier Specifications at Different Temperatures

Micromachines, 2022
To investigate the relationship between the specifications degradation of a low-noise amplifier (LNA) and temperature, we experimentally investigated the degradation characteristics of the specifications of the LNA at different temperatures.
Shaohua Zhou, Jian Wang
doaj   +1 more source

Single Event Effect Analysis of SiGe Low Noise Amplifier

Electronics, 2021
This paper analyzes the single event transient (SET) response of low noise amplifier (LNA) designed using SiGe heterojunction bipolar transistors (HBT).
Manel Bouhouche, Saida Latreche
doaj   +1 more source

A Ka‐band tunable LNA for MB‐OFDM application

IET Communications, 2021
In this paper a novel tuneable LNA is presented. This LNA is designed with two separated structures which both of them utilize noise cancellation technique and some other approaches such as gain boosting and T‐transformer feedback.
Seyed Alborz Hosseini, Mahmoud Mohammad‐Taheri, Ramin Khosravi, Gholamreza Moradi   +3 more
doaj   +1 more source

Characteristics, Biodiversity, and Cultivation Strategy of Low Nucleic Acid Content Bacteria

Frontiers in Microbiology, 2022
Low nucleic acid content (LNA) bacteria are ubiquitous and estimated to constitute 20%–90% of the total bacterial community in marine and freshwater environment.
Wei Hu, Hui Zhang, Xiaowen Lin, Ruidan Liu, Mark Bartlam, Yingying Wang   +5 more
doaj   +1 more source