Search results for "Ash"

A Novel Multi-step Finite-State Automaton for Arbitrarily Deterministic Tsetlin Machine Learning

2020

Due to the high energy consumption and scalability challenges of deep learning, there is a critical need to shift research focus towards dealing with energy consumption constraints. Tsetlin Machines (TMs) are a recent approach to machine learning that has demonstrated significantly reduced energy usage compared to neural networks alike, while performing competitively accuracy-wise on several benchmarks. However, TMs rely heavily on energy-costly random number generation to stochastically guide a team of Tsetlin Automata (TA) to a Nash Equilibrium of the TM game. In this paper, we propose a novel finite-state learning automaton that can replace the TA in TM learning, for increased determinis…

Do fire severity effects on soil change in space and time in the short-term? What ash tells us

2013

n the absence of data, the impact of fire, especially wildfires, is measured analysing the fire severity. This post-fire assessment is very useful because allow to identify the degree of destruction imposed by the fire. Among the techniques used to determine fire severity, ash colour is often used, that permit identify the degree of organic matter consumption (darker ash uncompleted combustion, lighter ash completed combustion). The objective of this paper was observed if fire severity changes in space and time, according to ash colour analysis, applying an index. The ash colour analysis was carried out one and fifteen days after the fire. In this area we identified ash with four different …

High Yield Ultrafast Intramolecular Singlet Exciton Fission in a Quinoidal Bithiophene

2015

We report the process of singlet exciton fission with high-yield upon photoexcitation of a quinoidal thiophene molecule. Efficient ultrafast triplet photogeneration and its yield are determined by photoinduced triplet-triplet absorption, flash photolysis triplet lifetime measurements, as well as by femtosecond time-resolved transient absorption and fluorescence methods. These experiments show that optically excited quinoidal bithiophene molecule undergoes ultrafast formation of the triplet-like state with the lifetime ∼57 μs. CASPT2 and RAS-SF calculations have been performed to support the experimental findings. To date, high singlet fission rates have been reported for crystalline and pol…

Preparative separation of phospholipids by flash-HPLC

1988

Heavy ion SEE studies on 4-Gbit NAND-Flash memories

2007

Heavy ion SEE studies on three 4-Gbit NAND-flash memory types were performed at the RADEF facility at the University of Jyvaskyla, Finland with particular emphasis on SEFI differentiation. An error classification for complex memory devices is introduced, and respective cross sections are reported.

MBU characterization of NAND-Flash memories under heavy-ion irradiation

2011

The angular dependence of the MBU-Cross-Section of two 8-Gbit-SLC-NAND-Flash and the orientation of the MBU-pattern has been measured.

Homogeneous freezing of single sulfuric and nitric acid solution drops levitated in an acoustic trap

2009

Abstract The freezing temperatures of single supercooled drops of binary and ternary sulfuric and nitric acid solutions were measured while varying the acid concentration. An acoustic levitator was used which allows to freely suspend single solution drops in air without electrical charges thereby avoiding any electrical influences which may affect the freezing process. The drops of typically 500 µm in radius were monitored by a video camera during cooling cycles down to − 85 °C to simulate the upper tropospheric and stratospheric temperature range. The present data confirm that liquid solution droplets can be supercooled far below the equilibrium melting point by approximately 35 °C. They f…

Gas-phase detection of HSOH: synthesis by flash vacuum pyrolysis of di-tert-butyl sulfoxide and rotational-torsional spectrum.

2003

Gas-phase oxadisulfane (HSOH), the missing link between the well-known molecules hydrogen peroxide (HOOH) and disulfane (HSSH), was synthesized by flash vacuum pyrolysis of di-tert-butyl sulfoxide. Using mass spectrometry, the pyrolysis conditions have been optimized towards formation of HSOH. Microwave spectroscopic investigation of the pyrolysis products allowed-assisted by high-level quantum-chemical calculations--the first measurement of the rotational-torsional spectrum of HSOH. In total, we have measured approximately 600 lines of the rotational-torsional spectrum in the frequency range from 64 GHz to 1.9 THz and assigned some 470 of these to the rotational-torsional spectrum of HSOH …

Experimental investigation of the effects of efficiency promoters in a MSF lab-scale unit

2006

Incentive System Design Based on Accrual Accounting: A Summary and Analysis

2009

ABSTRACT: This paper provides a formal analysis on how to design accrual-based incentive systems so that a manager's and owner's interests are properly aligned. We introduce a general framework to summarize the literature, provide various extensions to it, and point to some of its limitations. We characterize the entire class of goal-congruent and preference-similar incentive systems when the owner has perfect as well as imperfect information about the manager's preferences. This allows us to show how compensation functions and performance measures are interrelated and to demonstrate what information should be incorporated into compensation functions and performance measures. We illustrate …