Results 71 to 80 of about 1,694,005 (400)

Fully Printed 3-D Antennas With Wideband Radiation Isotropy Based on Annular Currents Models

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
Internet of Things (IoT) devices require orientation insensitive communication and a small footprint. Wireless communication should be maintained across the whole operation band, hence electrically small antennas (ESAs) with wideband radiation isotropy ...
Ruiqi Wang   +2 more
doaj   +1 more source

U.S. Government Manual 2008-2009 Edition: Social Security Administration [PDF]

open access: yes, 2008
[Excerpt] The Social Security Administration manages the Nation’s social insurance program—consisting of retirement, survivors, and disability insurance programs—commonly known as Social Security.
U.S. Government Printing Office
core   +1 more source

3D Printed Lightweight Composite Foams [PDF]

open access: yes, 2020
The goal of this paper is to enable 3D printed lightweight composite foams by blending hollow glass micro balloons (GMB) with high density polyethylene (HDPE). To that end, lightweight feedstock for printing syntactic foam composites is developed. The blend for this is prepared by varying GMB content (20, 40, and 60 volume %) in HDPE for filament ...
arxiv   +1 more source

Tonic signaling of the B‐cell antigen‐specific receptor is a common functional hallmark in chronic lymphocytic leukemia cell phosphoproteomes at early disease stages

open access: yesMolecular Oncology, EarlyView.
B‐cell chronic lymphocytic leukemia (B‐CLL) and monoclonal B‐cell lymphocytosis (MBL) show altered proteomes and phosphoproteomes, analyzed using mass spectrometry, protein microarrays, and western blotting. Identifying 2970 proteins and 316 phosphoproteins, including 55 novel phosphopeptides, we reveal BCR and NF‐kβ/STAT3 signaling in disease ...
Paula Díez   +17 more
wiley   +1 more source

Direct printing of polymer microstructures on flat and spherical surfaces using a letterpress technique [PDF]

open access: yes, 2002
We have developed a letterpress technique capable of printing polymer films with micrometer scale feature sizes onto flat or spherically shaped nonporous substrates.
Miller, Scott M.   +2 more
core   +1 more source

Understanding and measuring mechanical signals in the tumor stroma

open access: yesFEBS Open Bio, EarlyView.
This review discusses cancer‐associated fibroblast subtypes and their functions, particularly in relation to extracellular matrix production, as well as the development of 3D models to study tumor stroma mechanics in vitro. Several quantitative techniques to measure tissue mechanical properties are also described, to emphasize the diagnostic and ...
Fàtima de la Jara Ortiz   +3 more
wiley   +1 more source

U.S. Government Manual 2008-2009 Edition: Federal Labor Relations Authority [PDF]

open access: yes, 2008
[Excerpt] The Federal Labor Relations Authority oversees the Federal service labor-management relations program. It administers the law that protects the right of employees of the Federal Government to organize, bargain collectively, and participate ...
U.S. Government Printing Office
core   +1 more source

Phase-Only Holographic Assisted Planar Printing for Massively Multiplexed Optical Display and Encryption [PDF]

open access: yesarXiv, 2022
Multiplexed planar printings, made of single or few layer micro and nano optical platforms, are essential for high capacity display, information storage and encryption. Although having been developed rapidly, the demonstrated channels are still limited and also lack instantaneity.
arxiv  

Photopolymerization in 3D Printing

open access: yesACS Applied Polymer Materials, 2019
The field of 3D printing is continuing its rapid development in both academic and industrial research environments. The development of 3D printing technologies has opened new implementations in rapid prototyping, tooling, dentistry, microfluidics ...
A. Bagheri, Jianyong Jin
semanticscholar   +1 more source

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