Results 51 to 60 of about 29,030 (208)

Sheet‐Size‐Dependent Mosaicity of 2D Phyllosilicate Membranes

Advanced Science, EarlyView.
This study explores how the size of 2D vermiculite sheets affects the structure of laminar membranes. High‐resolution x‐ray diffraction reveals how sheet size governs structural disorder and crystallinity. These changes directly impact ion permeability.
Min A Kim, Paul A. Fenter, Sang Soo Lee, Katrina I. Sparks, Yining Liu, Jeffrey W. Elam, Seth B. Darling   +6 more
wiley   +1 more source

Photoelectric Imaging of the Optically Inactive Charge State of Silicon‐Vacancy Defects in Diamond

Advanced Science, EarlyView.
Although the doubly negative charge state of the SiV center in diamond is predicted to ionize only in the ultraviolet and is therefore considered optically inaccessible, we demonstrate visible‐range photoelectric imaging enabled by a previously unrecognized regime of laser‐assisted tunneling. ABSTRACT The investigation of optically active point defects
Ilia Chuprina, Gergő Thiering, Emilie Bourgeois, Anna Ermakova, Dmitry Budker, Adam Gali, Milos Nesladek, Petr Siyushev, Fedor Jelezko   +8 more
wiley   +1 more source

M/M/1 Multiple Vacation Queueing Systems with Differentiated Vacations

Modelling and Simulation in Engineering, 2014
We consider a multiple vacation queueing system in which a vacation following a busy period has a different distribution from a vacation that is taken without serving at least one customer.
Oliver C. Ibe, Olubukola A. Isijola
doaj   +1 more source

Analysis of an unreliable retrial G-queue with working vacations and vacation interruption under Bernoulli schedule

Ain Shams Engineering Journal, 2018
In this paper, we consider a single server retrial queueing system with working vacations. Further vacation interruption is considering with the regular busy server is subjected to breakdown due to the arrival of negative customers.
P. Rajadurai, V.M. Chandrasekaran, M.C. Saravanarajan   +2 more
doaj   +1 more source

Cobalt‐Catalyzed Asymmetric Construction of Boron Stereocenters With C–N Axial Chirality

Advanced Science, EarlyView.
A cobalt/Salox‐catalyzed one‐pot annulation enables enantioselective formation of B‐stereogenic centers and C─N axial chirality via C─H/N─H annulation, affording diverse fluorescent products with high stereocontrol and optoelectronic potential. ABSTRACT The efficient construction of boron stereogenic centers alongside axial chirality remains a ...
Subramani Kumaran, Harihara Subramanian Ravi Sankar, Pritam Maity, J. Richard Premkumar, Abir Das, Basker Sundararaju   +5 more
wiley   +1 more source

Tailored Covalent Organic Frameworks Enable the Encapsulation of Living Cells to Produce Rare Ginsenoside

Advanced Science, EarlyView.
This work reports the in situ fabrication of Escherichia coli@covalent organic frameworks (E. coli@COFs) in phosphate‐buffered saline. The COFs form an exoskeleton on E. coli, protecting intracellular β‐glucosidase (Ssbgl) while enhancing mass transfer.
Fengmei Liu, Shan Zhang, Shanrong Wei, Ziye Xing, Hongming He, Xiao Liang, Quanshun Li   +6 more
wiley   +1 more source

Ultrathin 2D In2O3 Nanosheets Confining Cu Single Atoms Synergized With Oxygen Vacancies for High Selectivity of Photocatalytic Reduction of CO2 to CO

Advanced Science, EarlyView.
In this work, we constructed an ultrathin two‐dimensional (2D) In2O3 nanosheet (In2O3‐Ns) structure based on oxygen vacancies (OV)‐rich defects and low crystallinity to anchor Cu single atoms (Cu SAs) and synthesized Cu/In2O3‐Ns photocatalysts. ABSTRACT In this work, we constructed an ultrathin two‐dimensional (2D) In2O3 nanosheet (In2O3‐Ns) structure ...
Yueying Yang, Xuan Xiang, Jiali Ren, Ying Bian, Xinyu Wang, Xiaoyang Lu, Yanjun Xue, Porun Liu, Cheng‐Hao Chuang, Xiaoli Zhang, Jian Tian   +10 more
wiley   +1 more source

Cost Optimization in Sintering Process on the Basis of Bulk Queueing System with Diverse Services Modes and Vacation

Mathematics
This research investigated a single bulk server queuing model where service modes and server vacations are dependent on the number of clients. The server operates in three different service modes: single service, fixed batch service, and variable batch ...
Subramani Palani Niranjan, Suthanthira Raj Devi Latha, Sorin Vlase   +2 more
doaj   +1 more source

Effects of vacation properties on local education budgets

Cogent Economics & Finance, 2014
Residents of school districts with large percentages of vacation properties have the opportunity to export a portion of their school taxes onto the owners of those vacation properties. Those property owners are unlikely to consume educational services or
Jason Giersch
doaj   +1 more source

Reliability Analysis of a Limited-Capacity Dual-Repair System with Hybrid Vacation Policies [PDF]

International Journal of Mathematical, Engineering and Management Sciences
This study investigates the reliability of a machine dual-repair system (MDRS) with limited capacity and multiple operational vacations (OV). Multiple operational vacation is a mechanism that involves the process of the two types of vacation, one as ...
Sapna, Anamika Jain, Praveen Kumar Agrawal   +2 more
doaj   +1 more source