Compact model of retention characteristics of ferroelectric FinFET synapse with MFIS gate stack

2021 ◽  
Author(s):  
Mohammad Aftab Baig ◽  
Hoang-Hiep Le ◽  
Sourav De ◽  
Che-Wei Chang ◽  
Chia-Chi Hsieh ◽  
...  
Keyword(s):  
Recognition Accuracy ◽  
Computationally Efficient ◽  
Retention Model ◽  
Neural Network Simulation ◽  
Transfer Characteristics ◽  
Vertical Field ◽  
Field Dependent ◽  
Retention Characteristics ◽  
Conductance States

Abstract In this paper, multiple-fin n- and p-channel HfZrO2 ferroelectric-FinFET devices are manufactured using a gate first process with post metalization annealing. The device transfer characteristics upon program and erase operations are measured and modeled. The drift in the transfer characteristics due to depolarization field and charge injection are captured using the shift in the threshold voltage along with time-dependent modeling of vertical field dependent mobility degradation parameters to develop a physical, computationally efficient, and accurate retention model for ferroelectric-FinFET devices. The modeled conductance is incorporated into deep neural network simulation platform CIMulator to analyze the role of conductance drift due to retention degradation, as well as the importance of the gap between high and low conductance states in improving the image recognition accuracy of neural networks.

scholarly journals Charge algebra in Al(A)dSn spacetimes

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Adrien Fiorucci ◽  
Romain Ruzziconi
Keyword(s):  
Boundary Conditions ◽  
Dirichlet Boundary ◽  
Three Dimensional ◽  
Dirichlet Boundary Conditions ◽  
Boundary Structure ◽  
Asymptotic Symmetry ◽  
Renormalization Procedure ◽  
Field Dependent ◽  
Odd Dimensions

Abstract The gravitational charge algebra of generic asymptotically locally (A)dS spacetimes is derived in n dimensions. The analysis is performed in the Starobinsky/Fefferman-Graham gauge, without assuming any further boundary condition than the minimal falloffs for conformal compactification. In particular, the boundary structure is allowed to fluctuate and plays the role of source yielding some symplectic flux at the boundary. Using the holographic renormalization procedure, the divergences are removed from the symplectic structure, which leads to finite expressions. The charges associated with boundary diffeomorphisms are generically non-vanishing, non-integrable and not conserved, while those associated with boundary Weyl rescalings are non-vanishing only in odd dimensions due to the presence of Weyl anomalies in the dual theory. The charge algebra exhibits a field-dependent 2-cocycle in odd dimensions. When the general framework is restricted to three-dimensional asymptotically AdS spacetimes with Dirichlet boundary conditions, the 2-cocycle reduces to the Brown-Henneaux central extension. The analysis is also specified to leaky boundary conditions in asymptotically locally (A)dS spacetimes that lead to the Λ-BMS asymptotic symmetry group. In the flat limit, the latter contracts into the BMS group in n dimensions.

Machete

2021 ◽  
Vol 28 (1) ◽  
pp. 1-46
Author(s):  
Eugene M. Taranta II ◽  
Corey R. Pittman ◽  
Mehran Maghoumi ◽  
Mykola Maslych ◽  
Yasmine M. Moolenaar ◽  
...  
Keyword(s):  
Video Game ◽  
Recognition Accuracy ◽  
Training Sample ◽  
Low Latency ◽  
Computationally Efficient ◽  
Extensive Evaluation ◽  
Segmentation Accuracy ◽  
Alternative Techniques ◽  
High Recognition Accuracy ◽  
Continuous Dynamic

We present Machete, a straightforward segmenter one can use to isolate custom gestures in continuous input. Machete uses traditional continuous dynamic programming with a novel dissimilarity measure to align incoming data with gesture class templates in real time. Advantages of Machete over alternative techniques is that our segmenter is computationally efficient, accurate, device-agnostic, and works with a single training sample. We demonstrate Machete’s effectiveness through an extensive evaluation using four new high-activity datasets that combine puppeteering, direct manipulation, and gestures. We find that Machete outperforms three alternative techniques in segmentation accuracy and latency, making Machete the most performant segmenter. We further show that when combined with a custom gesture recognizer, Machete is the only option that achieves both high recognition accuracy and low latency in a video game application.

Field Dependence and Self-Disclosure

1973 ◽  
Vol 36 (3) ◽  
pp. 735-738 ◽  
Author(s):  
Joaquin F. Sousa-Poza ◽  
Robert Rohrberg ◽  
Ernest Shulman
Keyword(s):  
Social Behavior ◽  
Field Dependence ◽  
The Self ◽  
Social Stimuli ◽  
Self Disclosure ◽  
Field Independent ◽  
The Social ◽  
Field Dependent ◽  
Personality Theories

Some characteristics of the social behavior of field-dependents as well as their superior recognition of ambiguous social stimuli led to the hypothesis that they would show greater self-disclosure than field-independents. This hypothesis was tested by administering the 60-item Jourard Self-disclosure Questionnaire (JSDQ) to 13 field-dependent and 13 field-independent Ss. In terms of total self-disclosure scores, field-dependents showed significantly (.025) higher levels than field-independents. Results are discussed in light of personality theories which emphasize the role of self-conceptual transactions in the development of the self.

On the quantitative relations between structure and antiaggregation activity of ω-aryl-ω-oxoalkanoic acids

1986 ◽  
Vol 51 (11) ◽  
pp. 2617-2625 ◽  
Author(s):  
Miroslav Kuchař ◽  
Bohumila Brunová ◽  
Jaroslava Grimová ◽  
Václav Rejholec ◽  
Václav Čepelák
Keyword(s):  
Partition Coefficients ◽  
Dissociation Constants ◽  
Inhibitory Effect ◽  
Partition Chromatography ◽  
Linear Quadratic ◽  
Marked Influence ◽  
Methyl Group ◽  
Retention Characteristics ◽  
Anti Inflammatory

A series of ω-aryl-ω-oxoalkanoic acids, I-IV, has been prepared and investigated for dissociation constants in 80% methylcellosolve, retention characteristics in thin-layer partition chromatography and partition coefficients P in the system octanol-water. Also evaluated were their anti-inflammatory efficacy and inhibitory effect on the platelet aggregation induced by collagen. Analysing the relations between structure and antiaggregation effect, we obtained a non-linear, quadratic dependence of this effect on lipophilicity, the optimum being at log P = 3. The antiaggregation effect increased with shortening the chain between the carbonyl and the carboxyl, and with increasing acidity. It was also diminished by the presence of a methyl group on the interlinking chain. To assess the role of lipophilicity we used the RM values of partition chromatography. The relation between anti-inflammatory efficacy and structure was assessed only qualitatively. In this aspect, too, the nature of the chain between the carbonyl and carboxyl proved to have a marked influence. The anti-inflammatory activity proved considerably enhanced by the presence of another aromatic ring in ω-oxoalkanoic acids derived from biphenyl.

Plasma equilibrium in toroidal l = 3 stellarators

1980 ◽  
Vol 24 (3) ◽  
pp. 453-478 ◽  
Author(s):  
P. J. Fielding ◽  
W. N. G. Hitchon
Keyword(s):  
Magnetic Field ◽  
Aspect Ratio ◽  
Plasma Pressure ◽  
Large Aspect Ratio ◽  
Plasma Equilibrium ◽  
Density Profiles ◽  
Vertical Field ◽  
Mhd Equilibrium ◽  
Vacuum Fields

The equations of MHD equilibrium are solved by including plasma pressure and current in a large aspect-ratio ordering scheme for the calculation of toroidal, l = 3 stellarator vacuum fields. The extended ordering unifies the low-beta equilibrium theory for tokamaks and l = 3 stellarators, and allows solutions to be obtained simply for arbitrarily prescribed pressure and current density profiles. Expressions are given for the equilibrium magnetic field and the equation for the flux surfaces is calculated, including the effects of l = 3 shaping and toroidal displacement. These results are used to calculate equilibria for the parameters of CLEO stellarator, and we examine the role of an externally applied vertical field in reducing pressure-induced flux surface distortion and destruction.

Fast Algorithms of Line Outage Distribution Factors with Cascading Failures

2014 ◽  
Vol 1070-1072 ◽  
pp. 843-848
Author(s):  
Xiao Long Fan ◽  
Jin Quan Zhao
Keyword(s):  
Fast Algorithms ◽  
Computationally Efficient ◽  
Double Line ◽  
Cascading Outages ◽  
Security Applications ◽  
Multiple Line ◽  
Recursive Theory ◽  
Efficient Expression ◽  
Line Outages

The prominent role of cascading outages in recent blackouts has created a need in security applications for evaluating line outage distribution factors (LODFs) under the multiple-line outages. Two fast algorithms of LODFs with multiple-line outages are proposed in this paper. In the first method, the double-line outage LODFs are expressed in terms of single-line outage LODFs, and it can be extended to N-k (k≥2) contingencies without any complex matrix operation through the recursive theory. In the second method, a computationally efficient expression of LODFs based on power transfer distribution factors (PTDFs) in pre-contingency network is presented. Numerical simulations are carried out on IEEE 14 and 118-bus test systems. The results show that both methods can effectively improve the computation speed of multiple-line outage LODFs.

scholarly journals What a Difference a Day Makes: Change in Memory for Newly Learned Word Forms Over 24 Hours

2014 ◽  
Vol 57 (5) ◽  
pp. 1842-1850 ◽  
Author(s):  
Karla K. McGregor
Keyword(s):  
Learning Outcomes ◽  
Recognition Accuracy ◽  
Word Form ◽  
Complex Interplay ◽  
Word Forms

Purpose This study explored the role of time and retrieval experience in the consolidation of word forms. Method Participants were 106 adults trained on 16 novel word-referent pairs, then tested immediately and 24 hr later for recognition and recall of word forms. In the interim, tests were repeated 2 hr or 12 hr after training, or not at all, thus varying the amount and timing of retrieval experience. Results Recognition accuracy was stable and speed improved over the 24-hr period. But these manifestations of consolidation did not depend on interim retrieval experience; in fact, the 2-hr interim test interfered with improvements in speed. In contrast, the number of word forms recalled increased only with interim retrieval experiences, and the 12-hr interim test was more advantageous to recall than the 2-hr test. Conclusions After a word form is encoded, it can become stronger with time. Retrieval experience can also strengthen the trace, but, if retrieval occurs when the memory is still labile, it can be disruptive. This complex interplay between retrieval experience and time holds implications for measuring learning outcomes and for scheduling practice in classrooms and clinics.

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