Results 81 to 90 of about 1,030,149 (344)
Why is CDMA the solution for mobile satellite communication [PDF]
It is demonstrated that spread spectrum Code Division Multiple Access (CDMA) systems provide an economically superior solution to satellite mobile communications by increasing the system maximum capacity with respect to single channel per carrier ...
Gilhousen, Klein S. +3 more
core +1 more source
On Max-SINR Receiver for Hexagonal Multicarrier Transmission Over Doubly Dispersive Channel
, 2013 In this paper, a novel receiver for Hexagonal Multicarrier Transmission (HMT) system based on the maximizing Signal-to-Interference-plus-Noise Ratio (Max-SINR) criterion is proposed. Theoretical analysis shows that the prototype pulse of the proposed Max-
Xia, Xiaochen +3 more
core +1 more source
Targeting p38α in cancer: challenges, opportunities, and emerging strategies
Molecular Oncology, EarlyView.p38α normally regulates cellular stress responses and homeostasis and suppresses malignant transformation. In cancer, however, p38α is co‐opted to drive context‐dependent proliferation and dissemination. p38α also supports key functions in cells of the tumor microenvironment, including fibroblasts, myeloid cells, and T lymphocytes.
Angel R. Nebreda
wiley +1 more source
Guangtongxin yanjiu【Objective】With the rapid development of the marine economy, the underwater Internet of Things (IoT) is facing urgent demands for intelligence and convenience.
WANG Jiale, ZHENG Kaiwen, LIAN Jie
doaj
Comparison of CDMA and FDMA for the MobileStar(sm) system [PDF]
Spread-spectrum code division multiple access (CDMA) and single channel per carrier frequency division multiple access (FDMA) systems are compared for spectrum efficiency.
Gilhousen, K. S. +4 more
core +1 more source
Molecular Oncology, EarlyView.This work identified serum proteins associated with pancreatic epithelial neoplasms (PanINs) and early‐stage PDAC. Proteomics screens assessed genetically engineered mice with abundant PanINs, KPC mice (Lox‐STOP‐Lox‐KrasG12D/+ Lox‐STOP‐Lox‐Trp53R172H/+ Pdx1‐Cre) before PDAC development and also early‐stage PDAC patients (n = 31), compared to benign ...
Hannah Mearns +10 more
wiley +1 more source
Sensors, 2014 Indoor localization of persons and objects poses a great engineering challenge. Previously developed localization systems demonstrate the use of wideband techniques in ultrasound ranging systems.
Laurent Segers +3 more
doaj +1 more source
Hardware simulation of Ku-band spacecraft receiver and bit synchronizer, volume 1 [PDF]
A hardware simulation which emulates an automatically acquiring transmit receive spread spectrum communication and tracking system and developed for use in future NASA programs involving digital communications is considered.
Eisenberg, B. R., Lindsey, W. C.
core +1 more source
RIPK4 function interferes with melanoma cell adhesion and metastasis
Molecular Oncology, EarlyView.RIPK4 promotes melanoma growth and spread. RIPK4 levels increase as skin lesions progress to melanoma. CRISPR/Cas9‐mediated deletion of RIPK4 causes melanoma cells to form less compact spheroids, reduces their migratory and invasive abilities and limits tumour growth and dissemination in mouse models.
Norbert Wronski +9 more
wiley +1 more source
Conceptual development of a ground-based radio-beacon navigation system for use on the surface of the moon [PDF]
A spread-spectrum radio-beacon navigation system for use on the lunar surface is described. The subjects discussed are principle of operation and specifications to include power requirements, operating frequencies, weight, size, and ...
Beggins, Andrew J. +2 more
core +1 more source