Results 21 to 30 of about 33,198 (306)

Design and Simulation of Microstrip Bandpass Filter with Regular Slots [PDF]

open access: yesEngineering and Technology Journal, 2017
This paper presents new microstrip slotted patch resonator bandpass filter with two transmission zeros of output frequency response around design frequency.
D.A. Hammood
doaj   +1 more source

Substrate Specificity of Chlorophyllase [PDF]

open access: yesPlant Physiology, 1975
Apparent Km and V(max) values were obtained for hydrolysis of methyl and ethyl chlorophyllides a, methyl and ethyl pheophorbide a, and 9-hydroxymethyl pheophorbide a by chlorophyllase from Ailanthus altissima. Analysis of substrate specificity data for chlorophyllase indicates that the presence of a 9-keto group and a methyl alcohol group esterified at
openaire   +2 more sources

The impact of customer-specific requirements on supply chain management

open access: yesJournal of Transport and Supply Chain Management, 2010
The complexities of being a supplier to motorcar manufacturers, also known as original equipment manufacturers (OEMs), provide an array of challenges to component manufacturers.
Hubert I.P. Conceivious
doaj   +1 more source

Design and Realization of Band Pass Filter in K-Band Frequency for Short Range Radar Application

open access: yesJurnal Elektronika dan Telekomunikasi, 2021
Short range radar (SRR) uses the K-band frequency range in its application. The radar requires high-resolution, so the applied frequency is 1 GHz wide.
Arie Setiawan   +10 more
doaj   +1 more source

The Sea Urchin Regulome in Development [PDF]

open access: yes, 2007
During development an organism undergoes many rounds of pattern formation, generating ever greater complexity with each ensuing round of cell division and specification.
Ashby, Meredith Howard
core   +1 more source

Propofol impairs specification of retinal cell types in zebrafish by inhibiting Zisp-mediated Noggin-1 palmitoylation and trafficking

open access: yesStem Cell Research & Therapy, 2021
Background Propofol can have adverse effects on developing neurons, leading to cognitive disorders, but the mechanism of such an effect remains elusive.
Xiaoqing Fan   +6 more
doaj   +1 more source

Brain Shock—Toward Pathophysiologic Phenotyping in Traumatic Brain Injury

open access: yesCritical Care Explorations, 2022
Severe traumatic brain injury (TBI) is a heterogeneous pathophysiologic entity where multiple interacting mechanisms are operating. This viewpoint offers an emerging, clinically actionable understanding of the pathophysiologic heterogeneity and ...
Christos Lazaridis, MD, EDIC
doaj   +1 more source

Development of a Low Loss, High Dielectric Strength Microwave Substrate [PDF]

open access: yes, 2006
This work describes a comparison of two candidate materials for pulse forming line fabrication with respect to bulk dielectric breakdown, frequency response of relative permittivity and dielectric loss.
K. Slenes   +17 more
core   +1 more source

Analysis of Black Line Defects in Hot-dip Al-Zn Sheets [PDF]

open access: yesCailiao Baohu
In order to identify the causes of black line defects in thin specification hot-dip Al-Zn sheets, a ZEISS Merlin Compact field emission scanning electron microscope (SEM) and an attached OXFORD X-max N type energy spectrometer were utilized to analyze ...
XU Mingwen, SUN Chaoyong, GAO Shiwei, LI Jian, LIU Xiaohua, YAO Ying
doaj   +1 more source

Design and Optimization of an S-Band MEMS Bandpass Filter Based on Aggressive Space Mapping

open access: yesMicromachines, 2022
Aggressive space mapping (ASM) is a common filter simulation and debugging method. It plays an important role in the field of microwave device design. This paper introduces ASM and presents the design and fabrication of a compact fifth-order microstrip ...
Qiannan Wu   +4 more
doaj   +1 more source

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