Results 21 to 30 of about 95,719 (293)

Stimulation of Cysteine-Coated CdSe/ZnS Quantum Dot Luminescence by meso-Tetrakis (p-sulfonato-phenyl) Porphyrin

open access: yesNanoscale Research Letters, 2018
Interaction between porphyrins and quantum dots (QD) via energy and/or charge transfer is usually accompanied by reduction of the QD luminescence intensity and lifetime. However, for CdSe/ZnS-Cys QD water solutions, kept at 276 K during 3 months (aged QD)
Gustavo G. Parra   +7 more
doaj   +1 more source

QD-learning: A collaborative distributed strategy for multi-agent reinforcement learning through consensus + innovations [PDF]

open access: yes, 2013
The paper considers a class of multi-agent Markov decision processes (MDPs), in which the network agents respond differently (as manifested by the instantaneous one-stage random costs) to a global controlled state and the control actions of a remote ...
Soummya Kar   +8 more
core   +1 more source

Quantum dot (QD)-based probes for multiplexed determination of heavy metal ions [PDF]

open access: yes, 2020
Heavy metal contamination is a major global concern and additive toxicity resulting from the exposure to multiple heavy metal ions is more pronounced than that induced by a single metal species.
Cole, IS, Truskewycz, A, Yin, H
core   +1 more source

Design and simulation of type-I graphene/Si quantum dot superlattice for intermediate-band solar cell applications

open access: yesFrontiers of Optoelectronics, 2022
Recent experiments suggest graphene-based materials as candidates for use in future electronic and optoelectronic devices. In this study, we propose a new multilayer quantum dot (QD) superlattice (SL) structure with graphene as the core and silicon (Si ...
Masumeh Sarkhoush   +2 more
doaj   +1 more source

Converter-aware wavelength assignment in WDM networks with limited-range conversion capability [PDF]

open access: yes, 2006
In wavelength-routed optical networks, wavelength converters are considered as one of the most critical network resources because they can significantly reduce the blocking probability, but still remain quite expensive. Unfortunately, previous wavelength
Ho, QD, Lee, Man Seop
core   +1 more source

Time-efficient optimal wavelength assignment in optical WDM networks with conversion capability [PDF]

open access: yes, 2006
In wavelength-routed optical networks (WRONs), a wavelength assignment algorithm which can optimally utilize wavelength converters is strongly desired.
Ho, QD, Lee, Man Seop
core   +1 more source

Policy of Interests Support at Khanh Hoa after a year

open access: yesTạp chí Khoa học Đại học Mở Thành phố Hồ Chí Minh - Kinh tế và Quản trị kinh doanh, 2021
Sau hơn 4 tháng triển khai các quyết định (QĐ) hỗ trợ lãi suất (HTLS) theo gói kích cầu của Chính phủ, tính đến ngày 23-7, dư nợ cho vay HTLS của các ngân hàng thương mại (NHTM) trên địa bàn tinh Khánh Hòa đạt 4.745,5 tỷ đồng, chiếm 32,39% tổng dư nợ cho
Trần Văn Hải
doaj  

A tecnologia do motor elétrico para o ensino de Eletromagnetismo numa abordagem problematizadora

open access: yesRevista Brasileira de Ensino de Ciência e Tecnologia, 2014
Neste trabalho discutimos o desenvolvimento de aulas dialógicas e problematizadas por meio de um objeto tecnológico com o objetivo de investigar suas contribuições para o ensino de Eletromagnetismo. Para tanto desenvolvemos a estratégia dos três momentos
Cristina Fátima de Jesus Silva Pires   +2 more
doaj   +1 more source

External-quantum-efficiency enhancement in quantum-dot solar cells with a Fabry–Perot light-trapping structure

open access: yesHeliyon, 2023
In this work, we have experimentally investigated the impact of light trapping on the performance of InAs/GaAs quantum dot (QD) solar cells. To increase the amount of absorbed near-infrared photons, we fabricated a thin-film QD solar cell with a backside
Yusuke Oteki, Yoshitaka Okada
doaj   +1 more source

Modificação química de sílica gel obtida de areia e seu uso na remoção de Cu2+, Zn2+, Mn2+

open access: yesEclética Química, 2018
Neste trabalho, foi obtida sílica gel a partir de uma fonte natural, a areia, modificada quimicamente com a incorporação em sua superfície de grupos básicos e aplicada na remoção de metais pesados do meio aquoso (Cu2+, Zn2+, Mn2+).
Elaine Alves de Faria Braga   +1 more
doaj   +1 more source

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