Effective Generation of Data Broadcast Schedules with Different Allocation Numbers for Multiple Wireless Channels

2008 ◽  
Vol 20 (5) ◽  
pp. 668-677 ◽  
Author(s):  
Song-Yi Yi ◽  
Seunghoon Nam ◽  
Sungwon Jung
Keyword(s):  
Wireless Channels ◽  
Data Broadcast ◽  
Effective Generation

Two-Step Fair Scheduling of Continuous Media Streams over Error-Prone Wireless Channels

2009 ◽  
Vol E92-B (6) ◽  
pp. 2254-2258
Author(s):  
Soohyun OH ◽  
Jin Wook LEE ◽  
Taejoon PARK ◽  
Tae-Chang JO
Keyword(s):  
Wireless Channels ◽  
Continuous Media ◽  
Fair Scheduling

Optimizing transmission rate in wireless channels using adaptive probes

2006 ◽  
Vol 34 (1) ◽  
pp. 381-382 ◽  
Author(s):  
Sudipto Guha ◽  
Kamesh Munagala ◽  
Saswati Sarkar
Keyword(s):  
Wireless Channels ◽  
Transmission Rate

scholarly journals Harnessing Wireless Channels for Scalable and Privacy-Preserving Federated Learning

2021 ◽  
pp. 1-1
Author(s):  
Anis Elgabli ◽  
Jihong Park ◽  
Chaouki Ben Issaid ◽  
Mehdi Bennis
Keyword(s):  
Wireless Channels ◽  
Privacy Preserving

scholarly journals Tailored generation of insulin producing cells from canine mesenchymal stem cells derived from bone marrow and adipose tissue

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Watchareewan Rodprasert ◽  
Sirirat Nantavisai ◽  
Koranis Pathanachai ◽  
Prasit Pavasant ◽  
Thanaphum Osathanon ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Hanging Drop ◽  
Differentiation Potential ◽  
Insulin Producing Cells ◽  
Edmonton Protocol ◽  
Effective Generation ◽  
Hanging Drop Culture ◽  
Peptide Secretion

AbstractThe trend of regenerative therapy for diabetes in human and veterinary practices has conceptually been proven according to the Edmonton protocol and animal models. Establishing an alternative insulin-producing cell (IPC) resource for further clinical application is a challenging task. This study investigated IPC generation from two practical canine mesenchymal stem cells (cMSCs), canine bone marrow-derived MSCs (cBM-MSCs) and canine adipose-derived MSCs (cAD-MSCs). The results illustrated that cBM-MSCs and cAD-MSCs contain distinct pancreatic differentiation potential and require the tailor-made induction protocols. The effective generation of cBM-MSC-derived IPCs needs the integration of genetic and microenvironment manipulation using a hanging-drop culture of PDX1-transfected cBM-MSCs under a three-step pancreatic induction protocol. However, this protocol is resource- and time-consuming. Another study on cAD-MSC-derived IPC generation found that IPC colonies could be obtained by a low attachment culture under the three-step induction protocol. Further, Notch signaling inhibition during pancreatic endoderm/progenitor induction yielded IPC colonies through the trend of glucose-responsive C-peptide secretion. Thus, this study showed that IPCs could be obtained from cBM-MSCs and cAD-MSCs through different induction techniques. Also, further signaling manipulation studies should be conducted to maximize the protocol’s efficiency.

scholarly journals A novel demodulation algorithm for VHF Data Broadcast signals in multi-sources augmentation navigation system

2020 ◽  
Vol 16 (3) ◽  
pp. 155014772091477
Author(s):  
Hongwei Zhao ◽  
Zichun Zhang ◽  
Xiaozhu Shi ◽  
Yihui Yin
Keyword(s):  
Navigation System ◽  
Signal To Noise Ratio ◽  
Open Loop ◽  
Timing Recovery ◽  
Loop Structure ◽  
Frame Synchronization ◽  
Source Information ◽  
Carrier Synchronization ◽  
Data Broadcast ◽  
Training Symbol

The augmentation navigation system based on multi-source information fusion can significantly improve position accuracy, and the multi-source information is usually transmitted through VHF Data Broadcast . Aiming at the burst characteristics of VHF Data Broadcast, this article proposed a novel demodulation algorithm based on open-loop structure. When a VHF Data Broadcast burst is detected, the timing recovery should be finished first, and the value of cross-correlation between the timing-recovered signal and the local training symbol is calculated to complete the frame synchronization. Then, the data-aided and non-data-aided algorithms are used to estimate the frequency offset. Finally, the phase offset is estimated and the carrier synchronization is accomplished. The simulation results demonstrate that the proposed algorithm can quickly accomplished carrier synchronization without using feedback-loop structure, and the bit error rate is less than 10−4 when the signal-to-noise ratio is greater than 17 dB, which satisfy the requirement of receiving VHF Data Broadcast signals in augmentation navigation system. Therefore, the proposed algorithm can be used for receiving VHF Data Broadcast signals.

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