Twisted Pair
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Morphological aspects and anatomy of the fruit, seeds and seedlings of Pentaclethra macroloba (willd.) Kuntze (Fabaceae)
Resumo: O estudo objetivou descrever a morfologia de fruto, semente e plântula, bem como a anatomia da semente e plântula de Pentaclethra macroloba (Willd.) Kuntze. A morfo-biometria foi realizada em cinquenta frutos e cem sementes. Para descrição das sequências dos eventos morfológicos dos estágios de germinação, dez sementes foram colocadas para g
J. Seed Sci.. Publicado em: 05/12/2019
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2. Desenvolvimento de um analisador para cabos de rede do tipo par trançado (UTP) / Development of an analyzer for network cables of type twisted pair (UTP)
Este trabalho descreve o desenvolvimento de um analisador para cabos de rede do tipo par trançado (UTP - Unshielded Twisted Pair) de baixo custo e que realize os dez testes exigidos pela norma ANSIA/TIA/EIA-568B. O equipamento é composto por dois dispositivos, mestre e escravo. O mestre é responsável por gerenciar e executar os testes e exibir os resulta
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/03/2010
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3. Dynamic bandwidth allocation for EPON networks / Alocação dinâmica de largura de banda em redes EPON
Telecommunication networks are divided into core, metropolitan and access networks. The core and metropolitan networks use high capacity bandwidth optical fibers, while the access networks have bandwidth bottlenecks because of the use of twisted-pair wires and coaxial cable. To solve this problem and to offers the users broadband access at low cost the use o
Publicado em: 2007
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4. Origin of the right-handed twist of beta-sheets of poly(LVal) chains.
The energies of three- and five-chain antiparallel and parallel beta-sheets were minimized. Each chain consisted of six L-valine residues with CH3CO and NHCH3 end groups; the chains were considered to be equivalent, but all dihedral angles of a given chain were allowed to vary independently during energy minimization. The minimum-energy structures had a cons
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5. Base-pair opening and spermine binding--B-DNA features displayed in the crystal structure of a gal operon fragment: implications for protein-DNA recognition.
A sequence that is represented frequently in functionally important sites involving protein-DNA interactions is GTG/CAC, suggesting that the trimer may play a role in regulatory processes. The 2.5 A resolution structure of d(CGGTGG)/d(CCACCG), a part of the interior operator (OI, nucleotides +44 to +49) of the gal operon, co-crystallized with spermine, is de
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6. Solution structural studies of the A and Z forms of DNA.
We report transient electric dichroism studies of short double-helical DNA and poly[d(G-C)] fragments in alcohol/water mixtures. The limiting reduced dichroism and the rotational correlation time changed abruptly in the alcohol concentration range expected for the DNA B-to-A and poly[d(G-C)] B-to-Z transitions. The Z form of poly[d(G-C)] was also induced by
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7. Relating repair susceptibility of carcinogen-damaged DNA with structural distortion and thermodynamic stability
A key issue in the nucleotide excision repair (NER) of bulky carcinogen–DNA adducts is the ability of the NER machinery to recognize and repair certain adducts while failing to repair others. Unrepaired adducts can survive to cause mutations that initiate the carcinogenic process. Benzo[c]phenanthrene (B[c]Ph), a representative fjord region polycyclic arom
Oxford University Press.