3,202 research outputs found
Quasi-pinning and entanglement in the lithium isoelectronic series
The Pauli exclusion principle gives an upper bound of 1 on the natural
occupation numbers. Recently there has been an intriguing amount of theoretical
evidence that there is a plethora of additional generalized Pauli restrictions
or (in)equalities, of kinematic nature, satisfied by these numbers. Here for
the first time a numerical analysis of the nature of such constraints is
effected in real atoms. The inequalities are nearly saturated, or quasi-pinned.
For rank-six and rank-seven approximations for lithium, the deviation from
saturation is smaller than the lowest occupancy number. For a rank-eight
approximation we find well-defined families of saturation conditions.Comment: 22 pages, 6 figures, minor changes, references adde
Prós e contra da resistência genética dos ovinos aos helmintos gastrintestinais.
É possível selecionar ovinos mais resistentes às parasitoses dentro do próprio rebanho; Fenótipos; A seleção por OPG permite respostas favoráveis à obtenção de ovinos mais resistentes aos parasitos gastrintestinais; Tipos de desafio; Correlação da seleção por OPG com características produtivas; Programas de seleção; Desafio de campo.bitstream/item/55753/1/DT-79.pdfDisponível no formato online
Otimização dos microssatélites BM4311, BMC1207, BMS1004, BMS1617, BMS6026 e CSKB074 em multiplexes.
Processo de otimização; Descrição sucinta da técnica; Caracterização; Impactos esperados.bitstream/item/55769/1/DT90.pd
Otimização dos microssatélites DIK4755, INRA192 e DIK4913 em multiplexes.
Descrição sucinta da técnica; Caracterização; Impactos esperados.bitstream/item/31744/1/CT-39online.pd
Method for manufacturing high quality carbon nanotubes
A non-catalytic process for the production of carbon nanotubes includes supplying an electric current to a carbon anode and a carbon cathode which have been securely positioned in the open atmosphere with a gap between them. The electric current creates an electric arc between the carbon anode and the carbon cathode, which causes carbon to be vaporized from the carbon anode and a carbonaceous residue to be deposited on the carbon cathode. Inert gas is pumped into the gap to flush out oxygen, thereby preventing interference with the vaporization of carbon from the anode and preventing oxidation of the carbonaceous residue being deposited on the cathode. The anode and cathode are cooled while electric current is being supplied thereto. When the supply of electric current is terminated, the carbonaceous residue is removed from the cathode and is purified to yield carbon nanotubes
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