HD video transmission of multi-rotor Unmanned Aerial Vehicle based on 5G cellular communication network

2020 ◽  
Vol 160 ◽  
pp. 688-696
Author(s):  
Qi Yang ◽  
Jong Hoon Yang
Keyword(s):  
Communication Network ◽  
Unmanned Aerial Vehicle ◽  
Video Transmission ◽  
Cellular Communication ◽  
Cellular Communication Network ◽  
Aerial Vehicle

CCN2 (Cellular Communication Network Factor 2) Deletion Alters Vascular Integrity and Function Predisposing to Aneurysm Formation

Hypertension ◽  
2021 ◽  
Author(s):  
R. Rodrigues-Díez Raul ◽  
Antonio Tejera-Muñoz ◽  
Vanesa Esteban ◽  
B. Steffensen Lasse ◽  
Raquel Rodrigues-Díez ◽  
...  
Keyword(s):  
Communication Network ◽  
Rapid Development ◽  
Cellular Communication ◽  
Aortic Aneurysms ◽  
Matricellular Protein ◽  
Ang Ii ◽  
Mineralocorticoid Receptor Antagonist ◽  
Functional Changes ◽  
Aneurysm Formation ◽  
Cellular Communication Network

Background: CCN2 (cellular communication network factor 2) is a matricellular protein involved in cell communication and microenvironmental signaling responses. CCN2 is known to be overexpressed in several cardiovascular diseases, but its role is not completely understood. Methods: Here, CCN2 involvement in aortic wall homeostasis and response to vascular injury was investigated in inducible Ccn2 -deficient mice, with induction of vascular damage by infusion of Ang II (angiotensin II; 15 days), which is known to upregulate CCN2 expression in the aorta. Results: Ang II infusion in CCN2-silenced mice lead to 60% mortality within 10 days due to rapid development and rupture of aortic aneurysms, as evidenced by magnetic resonance imaging, echography, and histological examination. Ccn2 deletion decreased systolic blood pressure and caused aortic structural and functional changes, including elastin layer disruption, smooth muscle cell alterations, augmented distensibility, and increased metalloproteinase activity, which were aggravated by Ang II administration. Gene ontology analysis of RNA sequencing data identified aldosterone biosynthesis as one of the most enriched terms in CCN2-deficient aortas. Consistently, treatment with the mineralocorticoid receptor antagonist spironolactone before and during Ang II infusion reduced aneurysm formation and mortality, underscoring the importance of the aldosterone pathway in Ang II–induced aorta pathology. Conclusions: CCN2 is critically involved in the functional and structural homeostasis of the aorta and in maintenance of its integrity under Ang II–induced stress, at least, in part, by disruption of the aldosterone pathway. Thus, this study opens new avenues to future studies in disorders associated to vascular pathologies.

scholarly journals Zigbee Protocol-Based Communication Network for Multi-Unmanned Aerial Vehicle Networks

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 57762-57771 ◽  
Author(s):  
Diego S. Pereira ◽  
Mateus Rodrigues De Morais ◽  
Luis B. P. Nascimento ◽  
Pablo J. Alsina ◽  
Vitor. G. Santos ◽  
...  
Keyword(s):  
Communication Network ◽  
Unmanned Aerial Vehicle ◽  
Zigbee Protocol ◽  
Vehicle Networks ◽  
Aerial Vehicle

scholarly journals Extracellular Oncosomes Rich in Moonlighting Metalloproteinase (MMP3) Are Transmissive, Pro-Tumorigenic, and Induces Cellular Communication Network Factor 2 (CCN2/CTGF): CRISPR against Cancer

2020 ◽  
Author(s):  
Yuka Okusha ◽  
Takanori Eguchi ◽  
Manh Tien Tran ◽  
Chiharu Sogawa ◽  
Kaya Yoshida ◽  
...  
Keyword(s):  
Communication Network ◽  
Culture Media ◽  
Recipient Cell ◽  
Tissue Growth ◽  
Cellular Communication ◽  
Migration And Invasion ◽  
Metastatic Colon Cancer ◽  
Cell Nuclei ◽  
Cellular Communication Network

Matrix metalloproteinase 3 (MMP3) plays multiple roles in pro-tumorigenic proteolysis and in intracellular transcription. These include inducing connective tissue growth factor [CTGF, also known as cellular communication network factor 2 (CCN2)] and prompting a new definition of MMP3 as a moonlighting metalloproteinase. Members of the MMP family have been found within tumor-derived extracellular vesicles (EVs) such as oncosomes or exosomes. We here investigated the roles of MMP3-rich oncosomes in tumor progression, molecular transmission, and gene regulation. MMP3 and CCN2/CTGF were significantly co-expressed in tumor samples derived from patients suffering from colorectal adenocarcinoma. We found that oncosomes derived from a rapidly metastatic colon cancer cells (LuM1) were enriched in MMP3 and a C-terminal half fragment of CCN2/CTGF. MMP3-rich oncosomes were highly transmissive into recipient cells and were pro-tumorigenic in an allograft mouse model. Oncosome-derived MMP3 was transmissive into recipient cell nuclei, trans-activated CCN2/CTGF promoter, and induced CCN2/CTGF production at 1 to 6 hours after the addition of oncosomes to culture media. In addition, CRISPR/Cas9-mediated knockout of MMP3 showed significant anti-tumor effects, including inhibition of migration and invasion of LuM1 cells in vitro, inhibition of tumor growth in vivo, and reduction of CCN2/CTGF and its promoter activity in vitro. These data newly demonstrate that the oncosome-derived moonlighting metalloproteinase promotes metastasis and is pro-tumorigenic at distant sites as well as a transmissive trans-activator for the cellular communication network gene.

scholarly journals Cellular communication network factor 3 in cartilage development and maintenance

2021 ◽  
Author(s):  
Satoshi Kubota ◽  
Harumi Kawaki ◽  
Bernard Perbal ◽  
Kazumi Kawata ◽  
Takako Hattori ◽  
...  
Keyword(s):  
Communication Network ◽  
Cellular Communication ◽  
Cartilage Development ◽  
Cellular Communication Network

A self-adaptive deployment model of UAV cluster for emergency communication network

2021 ◽  
Vol 17 (10) ◽  
pp. 155014772110493
Author(s):  
Ying Fang ◽  
Bin Cheng ◽  
KunPeng Kang ◽  
Hai Tan
Keyword(s):  
Communication Network ◽  
Unmanned Aerial Vehicle ◽  
Sensor Nodes ◽  
Military Operations ◽  
Boundary Node ◽  
Emergency Communication ◽  
Constraint Force ◽  
Virtual Force ◽  
Aerial Vehicle ◽  
Self Adaptive

Equipped with micro wireless sensor nodes, a unmanned aerial vehicle) cluster can form an emergency communication network, which can have several applications such as environmental monitoring, disaster relief, military operations and so on. However, situations where there is excessive aggregation and small amount of dispersion of the unmanned aerial vehicle cluster may occur when the network is formed. To mitigate these, a solution based on a 3D virtual force driven by self-adaptive deployment (named as 3DVFSD) is proposed. As a result, the three virtual forces of central gravity, uniform force, and boundary constraint force are combined to act on each node of the communication network. By coordinating the distance between the nodes, especially the threshold of the distance between the boundary node and the boundary, the centralized nodes can be relatively dispersed. Meanwhile, the nodes can be prevented from being too scattered by constraining the distance from the boundary node to the end. The simulation results show that the 3DVFSD algorithm is superior to the traditional virtual force-driven deployment strategy in terms of convergence speed, coverage, and uniformity.

Sign in / Sign up

Export Citation Format

Share Document