The Influence of the Most Powerful Signals on the Pacing Site Localization by Single Dipole

2008 ◽

Author(s):

Jonathan Shaw ◽

Christopher McMahon ◽

Yin Shyang Ng ◽

Félix Beaudoi

Keyword(s):

Failure Analysis ◽

Embedded Memory ◽

Complementary Information ◽

Time Resolved ◽

Laser Stimulation ◽

Specific Indication ◽

Read Operation ◽

Site Localization

Abstract This paper presents the use of Dynamic Laser Stimulation (DLS) and Time-Resolved DLS (TR-DLS) to provide fail site localization and complementary information on a failed embedded memory IC. In this study, an embedded dual port RAM within a 90nm IC that failed one of the Memory Built-In Self Tests (MBISTs) was investigated. This technique rapidly localized the failing area within the memory read/write circuitry. The TR-DLS provided maps for each operation of the MBIST pattern. With this information, the failure was clearly identified as a read operation failure. The TR-DLS technique also provided much refined site signature (down to just one net) within the sense amp of the Port B of the dual port RAM. This information provided very specific indication on how to improve the operation of that particular sense amp circuitry within the dual port RAM Memory.

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Protein feature analysis of heat shock induced ubiquitination sites reveals preferential modification site localization

Journal of Proteomics ◽

10.1016/j.jprot.2021.104182 ◽

2021 ◽

Vol 239 ◽

pp. 104182

Author(s):

Erich R. Kuechler ◽

Amalia Rose ◽

Marcel Bolten ◽

Angel Madero ◽

Shaima Kammoonah ◽

...

Keyword(s):

Heat Shock ◽

Feature Analysis ◽

Site Localization ◽

Protein Feature

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Motor field sensitivity for preoperative localization of motor cortex

Journal of Neurosurgery ◽

10.3171/jns.2006.105.4.588 ◽

2006 ◽

Vol 105 (4) ◽

pp. 588-594 ◽

Cited By ~ 14

Author(s):

Peter T. Lin ◽

Mitchel S. Berger ◽

Srikantan S. Nagarajan

Keyword(s):

Tactile Stimulation ◽

Dipole Localization ◽

Source Imaging ◽

Magnetic Source Imaging ◽

Motor Mapping ◽

Field Sensitivity ◽

Finger Flexion ◽

Single Dipole ◽

Movement Evoked Field

Object In this study the role of magnetic source imaging for preoperative motor mapping was evaluated by using a single-dipole localization method to analyze motor field data in 41 patients. Methods Data from affected and unaffected hemispheres were collected in patients performing voluntary finger flexion movements. Somatosensory evoked field (SSEF) data were also obtained using tactile stimulation. Dipole localization using motor field (MF) data was successful in only 49% of patients, whereas localization with movement-evoked field (MEF) data was successful in 66% of patients. When the spatial distribution of MF and MEF dipoles in relation to SSEF dipoles was analyzed, the motor dipoles were not spatially distinct from somatosensory dipoles. Conclusions The findings in this study suggest that single-dipole localization for the analysis of motor data is not sufficiently sensitive and is nonspecific, and thus not clinically useful.

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On-site localization of excitations

Quantum Information and Computation ◽

10.26421/qic5.45-5 ◽

2005 ◽

Vol 5 (4&5) ◽

pp. 335-349

Author(s):

M.I. Dykman ◽

L.F. Santos ◽

M. Shapiro ◽

F. .M. Izrailev

Keyword(s):

Quantum Computer ◽

Infinite Chain ◽

Quantum Operations ◽

Site Localization ◽

Excitation State ◽

Coupled Qubits

We demonstrate that, in a quantum computer with perpetually coupled qubits, all excitations can be confined to their sites (qubits) even without refocusing. The on-site localization is obtained by constructing a sequence of qubit energies that efficiently suppresses resonant hopping. The time during which a many-excitation state remains strongly localized in an infinite chain can exceed the reciprocal hopping frequency by $\agt 10^5$ already for a moderate bandwidth of qubit energies. The proposed energy sequence is also convenient for performing quantum operations on the qubits.

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