Results 41 to 50 of about 254 (215)

Contention resolution with constant expected delay [PDF]

Journal of the ACM, 2000
We study contention resolution in a multiple-access channel such as the Ethernet channel. In the model that we consider,nusers generate messages for the channel according to a probability distribution. Raghavan and Upfal have given a protocol in which the expecteddelay(time to get serviced) of every message is O(logn) when messages are generated ...
Goldberg, L., MacKenzie, P., Paterson, M., Srinivasan, A.   +3 more
openaire   +2 more sources

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Analysis of fibre-loop optical buffers with a void-avoiding schedule [PDF]

EAI Endorsed Transactions on Internet of Things, 2015
In optical packet/burst switching, fibre-loop optical buffers provide a compact and effective means of contention resolution. In case of fixed packet length, the involved loop length is typically chosen matched (equal to the packet length), and the loops
Wouter Rogiest, Jan-Pieter Dorsman, Dieter Fiems   +2 more
doaj   +1 more source

Fabrication of Pyridinic Nitrogen‐Functionalized Carbon Cloth for High‐Performance Iron‐Chromium Flow Batteries

Advanced Functional Materials, EarlyView.
The carbon cloth electrode with targeted pyridinic nitrogen doping, achieved via urea pyrolysis, effectively modulates the adsorption of Cr(II) species and enhances electron transfer, leading to significantly improved kinetics of the Cr(II)/Cr(III) reaction. The material demonstrates a high discharge capacity of 689.3 mAh and an energy efficiency of 72.
Jinfeng Yi, Senwei Zeng, Runfa Zhao, Guangfu Wu, Zhi Liu, Tianhang Zhou, Chunming Xu, Jia Guo, Quan Xu, Yingchun Niu   +9 more
wiley   +1 more source

Complimentary code keying of spectral amplitude coding signals in optical buffering with increased capacity

Journal of the European Optical Society-Rapid Publications, 2020
Signal buffering services such as contention resolution and congestion avoidance are essential in optical packet switching networks. In this paper, an optical memory scheme based on spectral amplitude coding (SAC) and complementary code keying (CCK) is ...
Kai-Sheng Chen, Wien Hong
doaj   +1 more source

QoS provisioning for Composite Burst Assembly with Burst Segmentation in Optical Burst Switching (OBS) Networks [PDF]

Kirkuk Journal of Science, 2015
Optical Burst Switching (OBS) is one of the suggested that switching paradigms be used in Internet-Protocol over Wavelength Division Multiplexing (IP over WDM) networks along with Optical Circuit Switching (OCS) and Optical Packet Switching (OPS).
Adnan I. Saleh
doaj   +1 more source

Development of a genetic algorithm-based graph model for conflict resolution for optimizing resolutions in environmental conflicts

Journal of Hydroinformatics, 2023
Graph model for conflict resolution (GMCR) is a robust tool for resolving disagreements among parties with contradictory interests in a potential conflict. In GMCR, decision-makers (DMs) and their preferences are determined. The DMs are defined as people,
Mitra Pourvaziri, Samira Mahmoudkelaye, Saied Yousefi   +2 more
doaj   +1 more source

Multi‐Functional ZnO–Te Heterojunction Devices Enabling Compact Frequency Quadrupler

Advanced Functional Materials, EarlyView.
Wafer‐scale ZnO–Te heterojunction devices featuring tunable double negative differential transconductance (D‐NDT) are demonstrated at ≤ 200°C. Leveraging this unique characteristic, a single‐stage frequency quadrupler is realized, achieving a 64%–75% reduction in device count.
Jae Hyeon Jun, Byeong Gwan Kim, Min Seo Kang, Ui Gwan Shin, Minjae Kim, Kiyung Kim, Hae‐Won Lee, Yongsu Lee, Byoung Hun Lee   +8 more
wiley   +1 more source

Collision Resolution Schemes with Nonoverlapped Contention Slots for Heterogeneous and Homogeneous WLANs

Journal of Engineering, 2013
CSMA/CA-based DCF of 802.11 MAC layer employs a best-effort delivery model, in which stations compete for channel access with the same priority. In a heterogeneous network, providing different priorities to different applications for required quality of ...
Raksha Upadhyay, Prakash D. Vyavahare, Sanjiv Tokekar   +2 more
doaj   +1 more source

Bioprinting Organs—Science or Fiction?—A Review From Students to Students

Advanced Healthcare Materials, EarlyView.
Bioprinting artificial organs has the potential to revolutionize the medical field. This is a comprehensive review of the bioprinting workflow delving into the latest advancements in bioinks, materials and bioprinting techniques, exploring the critical stages of tissue maturation and functionality.
Nicoletta Murenu, Camilla Mussoni, Mateo S. Andrade Mier, Paula Buettner, Nathaly Chicaiza‐Cabezas, Yi‐Yu Robin Dai, Jessica Faber, Maren Fiedler, Zan Lamberger, Xuen Jen Ng, Vanessa Moessler, Anna Rederer, Jonas Roeder, Sabrina Stecher, Katinka Theis, Jeanette Weigelt, Silvia Budday, Gregor Lang, Natascha Schaefer   +18 more
wiley   +1 more source