Results 41 to 50 of about 4,641,741 (284)

Queuing Analysis on Multiple Vacation Policies and Reneging

International Journal of Engineering and Advanced Technology, 2019
We study a non markovian queue which renders service to the customers. After the completion of service the server ought to go for the compulsory vacation stage by stage in succession. We consider one of the customer’s behaviors reneging to occur when the server’s vacation is extended.
P. Suthersan, S. Maragatha Sundari
openaire   +1 more source

Asymmetric Lamellar Templating of the Perovskite/C60 Interface for Scalable Inverted Perovskite Photovoltaics

Advanced Materials, EarlyView.
Asymmetric lamellar templating at the perovskite/C60 interface is achieved using a laterally polarized indole spacer. Surface anchoring and Ind–Ind assembly form a π‐rich lamellar interphase that supports uniform C60 contact formation, suppresses recombination, preserves electron extraction, and enables certified high‐efficiency cells and modules with ...
Taeyoon Ki, Jong‐Guk Ahn, Sangcho Kim, Sangjin Kim, Min‐Ho Lee, In‐Wook Hwang, Jinju Jeong, Soobin Shim, Jaeboong Ahn, Jun Hong Park, Seungjin Lee, Jung‐Yong Lee, Yousoo Kim, Ju‐Hyeon Kim, Hongkyu Kang, Sukwon Hong, Kwanghee Lee   +16 more
wiley   +1 more source

Multiple Control Policy in Unreliable Two-Phase Bulk Queueing System with Active Bernoulli Feedback and Vacation

Mathematics, 2023
In this paper, a bulk arrival and two-phase bulk service with active Bernoulli feedback, vacation, and breakdown is considered. The server provides service in two phases as mandatory according to the general bulk service rule, with minimum bulk size ′a ...
S. P. Niranjan, S. Devi Latha, Miroslav Mahdal, Krishnasamy Karthik   +3 more
doaj   +1 more source

SUMMIT (Serially Unified Multicenter Multiple Sclerosis Investigation): creating a repository of deeply phenotyped contemporary multiple sclerosis cohorts. [PDF]

, 2018
BackgroundThere is a pressing need for robust longitudinal cohort studies in the modern treatment era of multiple sclerosis.ObjectiveBuild a multiple sclerosis (MS) cohort repository to capture the variability of disability accumulation, as well as ...
Uitdehaag, Bernard M.J., KAPPOS, L. D., Cree, Bruce Ac, Hauser, Stephen L., Chitnis, Tanuja, Cree, Bruce Anthony C.C., Montalban, Xavier, Bove, Riley, Weiner, Howard L, Hauser, Stephen L, Kappos, Ludwig, Khoury, Samia J., Khoury, Samia J, Weiner, Howard L., Tintoré, Mar, SUMMIT Consortium, Naegelin, Yvonne, Uitdehaag, Bernard Mj, Bové, Riley Marie   +18 more
core   +1 more source

Escaping the Scaling Relationships in Oxygen Reduction Catalysis: Implications for PEM Fuel Cells

Advanced Materials, EarlyView.
Escaping the scaling relationships of the oxygen reduction reaction is vital for hydrogen fuel cells. This outlook examines how interfacial heterogeneity, spanning the subsurface lattice, chemisorption layer, and near‐interface solvation volume, mechanistically decouples intermediate binding energetics.
Muhammad Bilal Wazir, Lourdes F. Vega, Maryam Khaleel   +2 more
wiley   +1 more source

Transient Analysis of a k-out-of-n:G System with N-Policy, Repairmen’s Multiple Vacations, and Redundant Dependency

Discrete Dynamics in Nature and Society, 2015
This paper analyzes a k-out-of-n:G repairable system with N-policy, repairmen’s multiple synchronous vacations, and redundant dependency. When there is no failed component in the system, the repairmen leave for a vacation, the duration of which follows a
Wenqing Wu, Yinghui Tang
doaj   +1 more source

Quatro Décadas de Transformações: A vilegiatura marítima no litoral metropolitano de Fortaleza, Ceará – Brasil

Confins, 2012
The coastal urbanization and the maritime summer vacation are crucial themes to the urban geography studies in the Northeast region. This theoretic-methodological undertaking in the form of an article aims to comprehend the production of modern maritime ...
Prof. Dr. Alexandre Queiroz Pereira
doaj   +1 more source

Nano‐Architected Metallic Metamaterial With Enhanced Fatigue Resistance via Dislocation Starvation

Advanced Materials, EarlyView.
Nanoscale Ni single crystals exhibit remarkable fatigue resistance over an order of magnitude higher than that of bulk single crystals through dislocation starvation. By translating this mechanism into geometric nano‐architecture, nano‐architected Ni single‐crystal metamaterials achieve about twice the fatigue resistance of the bulk, despite their ...
Kota Sugisaka, Yamato Ishizaka, Hiroki Ikeda, Shigeo Arai, Masataka Abe, Yoshitaka Umeno, Hiroyuki Shima, Takashi Sumigawa   +7 more
wiley   +1 more source

Polyphenol‐Inspired Materials for Agricultural Applications

Advanced Materials, EarlyView.
This review outlines the use of polyphenol‐inspired materials for sustainable agriculture, highlighting their molecular design, interfacial assembly, structure–property relationships, and prospects toward precision agriculture, climate resilience, ecosystem protection, and circular bioeconomy strategies.
Haofu Liu, Omid Mazaheri, Zhixing Lin, Tianzheng Wang, Jingqu Chen, Yuang Gu, Xia Liang, Deli Chen, Frank Caruso   +8 more
wiley   +1 more source

Time-dependent behaviour of an M/M/3 heterogeneous server queueing system with multiple vacations subject to system disaster

Mathematics in Applied Sciences and Engineering
This research paper investigates the dynamic behaviour of a heterogeneous three-server queuing model with multiple vacation. The model also accounts for the possibility that a disaster could occur during busy periods or on vacation, in which case the ...
V. Karthick, V. Suvitha
doaj   +1 more source