Results 41 to 50 of about 31,895 (287)

Graphen in der Schule mit Python und Jupyter-Notebooks

Informatische Bildung in Schulen
Graphen spielen eine große Rolle in vielen Alltagssituationen sowie in der wissenschaftlichen Informatik. Sie sind Teil der Informatik-Lehrpläne (mindestens der Leistungskurse) der gymnasialen Oberstufe.
Klaus Bovermann
doaj   +1 more source

Prospects for the Application of Nanotechnologies to the Computer System Architecture [PDF]

Журнал нано- та електронної фізики, 2012
Computer system architecture essentially influences the comfort of our everyday living. Developmental transition from electromechanical relays to vacuum tubes, from transistors to integrated circuits has significantly changed technological standards for ...
M. Mazur, J. Partyka
doaj  

Forcing a sparse minor [PDF]

, 2015
This paper addresses the following question for a given graph $H$: what is the minimum number $f(H)$ such that every graph with average degree at least $f(H)$ contains $H$ as a minor?
Reed, Bruce, Wood, David R.
core   +1 more source

KHỬ VẬT LIỆU α-MnO2/GO BẰNG ĐIỆN HOÁ VÀ ỨNG DỤNG VẬT LIỆU KHỬ VÀO PHÂN TÍCH MẪU THUỐC MỠ TRA MẮT

Tạp chí Khoa học Đại học Huế: Khoa học Tự nhiên, 2023
Mangan dioxit (MnO2) được tổng hợp trực tiếp trên nền graphen oxit (GO). Chúng tôi nghiên cứu quá trình khử điện hoá vật liệu α-MnO2/GO bằng hai kỹ thuật chính là von-ampe vòng (CV) và điện thế thời gian (i-T).
Anh Vu Ho Xuan, Nguyen Van Tuan Vu, Le Trung Hieu, Vo Ngoc Chau Anh, Nguyen Hai Phong, Hoang Duong Thuy Dan   +5 more
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Symmetry classification of energy bands in graphene and silicene

, 2012
We present the results of the symmetry classification of the electron energy bands in graphene and silicene using group theory algebra and the tight--binding approximation.
Kogan, E.
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A proof of Mader's conjecture on large clique subdivisions in $C_4$-free graphs [PDF]

, 2016
Given any integers $s,t\geq 2$, we show there exists some $c=c(s,t)>0$ such that any $K_{s,t}$-free graph with average degree $d$ contains a subdivision of a clique with at least $cd^{\frac{1}{2}\frac{s}{s-1}}$ vertices.
Liu, Hong, Montgomery, Richard
core   +3 more sources

Graphene–dielectric integration for graphene transistors [PDF]

Materials Science and Engineering: R: Reports, 2010
Graphene is emerging as an interesting electronic material for future electronics due to its exceptionally high carrier mobility and single-atomic thickness. Graphene-dielectric integration is of critical importance for the development of graphene transistors and a new generation of graphene based electronics.
Lei, Liao, Xiangfeng, Duan
openaire   +2 more sources

Entwicklung des wissenschaftlichen Denkens bei Vier- bis Achtjährigen

Beiträge zur Lehrerinnen- und Lehrerbildung, 2006
Die Metapher vom «Kind als Wissenschaftler» ist nach wie vor einflussreich in der Entwicklungspsychologie. Kinder bilden intuitive Theorien und Hypothesen über Phänomene ihrer Umgebung und über die eigene Person (physikalische, biologische ...
Susanne Koerber
doaj   +1 more source

Nanocoating on cotton fabric with nitrogen-doped graphene quantum dots/titanium dioxide/PVA: an erythemal UV protection and photoluminescent finishing

Journal of Materials Research and Technology, 2022
Prolonged exposure to ultraviolet (UV) radiation from the sun can result in several skin problems, such as accelerating aging, burns, blemishes, or even cancer.
B.H.S. Felipe, R.L.B. Cabral, R. Ladchumananandasivam, A. Zille, S. Kim, P.B.A. Fechine, J.H.O. Nascimento   +6 more
doaj   +1 more source

Water-Gated Charge Doping of Graphene Induced by Mica Substrates

, 2012
We report on the existence of water-gated charge doping of graphene deposited on atomically flat mica substrates. Molecular films of water in units of ~0.4 nm-thick bilayers were found to be present in regions of the interface of graphene/mica hetero ...
Ashcroft N. W., Bae S., Basko D. M., Berciaud S., Bluhm H., Bostwick A., Campbell P. A., Cao P. G., Casiraghi C., Chakrapani V., Chen C.-F., Chen J. H., Chen W., Chiang C. K., Chun Hung Lui, Das A., De S., Dean C. R., Deryagin B. V., Ding F., Dong X. C., Dresselhaus M. S., Dresselhaus M. S., Fasolino A., Ferrari A. C., Geim A. K., Gierz I., Giese R. F., Giovannetti G., Gratzel M., Guggisberg M., Hervas M., Hibino H., Hossain M. Z., Huang M., Ishigami M., Ishii H., Jihye Shim, Lafkioti M., Lee W. H., Levesque P. L., Linsebigler A. L., Liu L., Lohmann T., Lui C. H., Meyer J. C., Mohiuddin T. M. G., Muller K., Nishimura S., Nitzan A., Novoselov K. S., Ohta T., Philip Kim, Rudenko A. N., Ryu S., Schedin F., Shi Y. M., Stolyarova E., Sunmin Ryu, Taeg Yeoung Ko, Takahashi T., Tony F. Heinz, Wang R., Wang X. R., Weaver J. M. R., Xu K., Xue J. M., Yan J., Young-Jun Yu, Yu Y. J.   +69 more
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