Hepatitis disease is one of the most important health problems in the world. It is estimated that 1.3 million people worldwide die each year from viral hepatitis, one of the most significant causes of hepatitis diseas...
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ISBN:
(数字)9798331510886
ISBN:
(纸本)9798331510893
Hepatitis disease is one of the most important health problems in the world. It is estimated that 1.3 million people worldwide die each year from viral hepatitis, one of the most significant causes of hepatitis disease, and that one out of every three people in the world has been infected with the Hepatitis B virus (HBV). In this study, a Web-Based Medical Expert System (WBMES) was developed to diagnose hepatitis disease using logic functions. The system has been developed to raise the awareness of hepatitis disease – which negatively affects individual and community health, and hinders productivity – and increase the rates of early diagnosis and reduce the negative effects on individuals and the community. To do this, a truth table was created that included nine symptoms of hepatitis disease and 512 rules (2 9 = 512). Within this scope, the 512 rules in the truth table were evaluated together with specialist doctors to create a rule base called the Medical Expert System (MES), and a web-interface was developed to access it. The system was evaluated using the Hepatitis Dataset obtained from the UCI Repository of Machine Learning Databases, and it was found that the system's evaluation success rate was 98.68%.
We present the concept of logic functions based on a single stimuli-responsive nanopore and analyze its potential for electrochemical transducers and actuators. The responsive molecules at the surface of the polymeric...
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We present the concept of logic functions based on a single stimuli-responsive nanopore and analyze its potential for electrochemical transducers and actuators. The responsive molecules at the surface of the polymeric nanopore immersed in an electrolyte solution are sensitive to thermal, chemical, electrical, and optical stimuli, which are the input signals required to externally tune the conductance of the nanopore (the logical output). A single nanostructure can be operated as a resistor or as a diode with a broad range of rectifying properties, allowing for logical information-processing schemes that are useful pH and temperature sensors, electro-optical detectors, and electrochemical actuators and transducers. Some of the limitations to be addressed in practical applications are also cited.
An analysis has been made of the number and types of logical functions which can be performed using the interaction of circular magnetic domains in rare earth iron oxides. Multiple logic functions are found to be prod...
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An analysis has been made of the number and types of logical functions which can be performed using the interaction of circular magnetic domains in rare earth iron oxides. Multiple logic functions are found to be produced simultaneously at any logical area. These conjunctive output sets have been categorized. Several conjunctive logic gates have been designed, fabricated, and tested successfully in Sm 0.55 Tb 0.45 FeO 3 using Permalloy overlays. Utilizing a circuit in which AND/OR logic gates are coupled to a dynamic memory bank, the total correlation of two data streams has been performed. It is shown how this multiply accessed dynamic memory serves to establish the correlation threshold.
A non-linear transform, called 'Sign Hadamard-Haar transform' is introduced. The transform is unique and converts ternary vectors into ternary spectral domain. Recursive definition and fast transform have been...
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A non-linear transform, called 'Sign Hadamard-Haar transform' is introduced. The transform is unique and converts ternary vectors into ternary spectral domain. Recursive definition and fast transform have been developed. Formulae to represent Sign Hadamard-Haar spectra for basic logic functions and their variables for two different codings are shown. New transform is extremely effective in terms of computational costs when compared with known ternary transforms. Advantage of new transform over known Sign Walsh transform in ternary communication system is also discussed.
A lossless compression of images using coding schemes and patterns that include minterm, cube and coordinate data coding, Walsh, triangular and Reed-Muller weights based patterns, Reed-Muller spectra and reference row...
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A lossless compression of images using coding schemes and patterns that include minterm, cube and coordinate data coding, Walsh, triangular and Reed-Muller weights based patterns, Reed-Muller spectra and reference row technique is proposed. The experimental results indicate that the technique is fairly efficient when compared with other methods based on representations of logic functions. (C) 2003 Elsevier Ltd. All rights reserved.
A Ti/VOx/ITO memristor prepared at room temperature presents low switching voltages (set/reset voltages similar to -6 mV/190 mV) as well as good resistive switching characteristics including acceptable ON/OFF ratio (s...
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A Ti/VOx/ITO memristor prepared at room temperature presents low switching voltages (set/reset voltages similar to -6 mV/190 mV) as well as good resistive switching characteristics including acceptable ON/OFF ratio (similar to 10) and long data retention (> 10(4) s). Such ultralow switching voltages mainly result from appropriate interface engineering combined with rational material design. Due to Ti's high oxygen-gettering capability, its contact with VOx leads to formation of a TiOx interlayer with numerous oxygen vacancies (V-O(2+)) near the interface even at room temperature. This interfacial V-O(2+) facilitates oxygen ions (O2-) migration by enlarging the available free space and weakening the local oxygen-cation bonds, thus resulting in the low switching voltages. Moreover, the graded O2- distribution in the TiOx interlayer induces a built-in electric field (Ebuilt-in), which has the same direction to the external electric field generated by the set voltage. This E-b(uilt_in) accelerates the O2- migration and thus leads to the ultralow set voltage. The resistive switching mechanism is revealed to be based on formation and collapse of the Schottky barrier caused by the O2- drift in the TiOx interlayer. The Boolean logic functions including 'NOT', 'AND', 'OR', 'NAND' and 'NOR' are demoed by using a single memristor, showing a great potential for in-memory computing. (C) 2022 Elsevier B.V. All rights reserved.
This paper introduces an electronic circuit capable of generating a set of functions, some of them known in digital systems as the logical operators AND, OR, XOR, and so on. Using two inputs, u1$$ {u}_1 $$ and u2$$ {u...
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This paper introduces an electronic circuit capable of generating a set of functions, some of them known in digital systems as the logical operators AND, OR, XOR, and so on. Using two inputs, u1$$ {u}_1 $$ and u2$$ {u}_2 $$, the circuit provides 16 possible output combinations. The main idea of the electronic design is based on an RC network, operational amplifiers, and voltage comparators. On the other hand, mathematically, the stable system response is used as a surface where u1$$ {u}_1 $$ and u2$$ {u}_2 $$ are coordinate axes forming a plane, which intersects this surface, and the output y$$ y $$ can be seen as a circle surrounding some fixed points over this plane. The mathematical approach on this paper is intended as a groundwork for a multiple input reconfigurable logic gate that could be embedded in more complex systems. The procedure to obtain an XOR gate, represented by the f(6)$$ f(6) $$ function, is explained to illustrate the circuit behavior. Results of the 16 implemented functions are shown in Appendices B and C.
The bionic features offered by memory device are being actively explored. However, two-terminal memristors exhibit variability and limited capacity due to their inherent single presynaptic input scheme. Compared with ...
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The bionic features offered by memory device are being actively explored. However, two-terminal memristors exhibit variability and limited capacity due to their inherent single presynaptic input scheme. Compared with the two-terminal memristor, the memtransistor can realize the modulation of conductive channel through the synergistic effect of gate, which enables the multifunctional modulation. Here, based on Schottky barrier tuning at metal-semiconductor interfaces by means of ferroelectric domain switching, a programmable memtransistor with arithmetic calculating and logic function is realized. Memtransistor with drain and gate adjustable non-volatile memory function effectively simulates the plasticity of biological synapses. Moreover, four arithmetical operations: addition, subtraction, multiplication and division are carried out by using the synaptic device. At the same time, the logic gate functions of "XOR" and "XNOR" were implemented based on ferroelectric memtransistor. This result will be helpful to further promote the development of memory computing for synaptic devices.
A description is given of linear and disjoint decompositions of completely specified Boolean functions using transform methods. Since previously known transform methods are impractical for automation due to their enor...
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A description is given of linear and disjoint decompositions of completely specified Boolean functions using transform methods. Since previously known transform methods are impractical for automation due to their enormous computational complexity, polynomial approximations to the linear decomposition procedure that use reduced representations of functions are used. Experimental results are reported which establish that such decompositions can often result in improved implementations of logic functions. The disjoint decomposition problem is in the spectral domain, allowing the development of an algorithm that can simultaneously detect multiple decompositions of a given function. This algorithm has low average complexity and has the ability to detect the nonexistence of decompositions quickly.< >
Switching lattices, consisting of four-terminal switches, present an alternative structure for the realization of Boolean logic functions. Although promising algorithms have been introduced to find a realization of a ...
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Switching lattices, consisting of four-terminal switches, present an alternative structure for the realization of Boolean logic functions. Although promising algorithms have been introduced to find a realization of a logic function using a switching lattice with the fewest number of four-terminal switches, the delay of a switching lattice has not been examined yet. In this article, we generate a switching lattice using a recently proposed CMOS-compatible four-terminal device model and formulate the delay of a path in a switching lattice. It is observed that the delay of a design realizing a logic function on a switching lattice heavily depends on the number of four-terminal switches in the critical path. With this motivation, we introduce optimization algorithms, called PHAEDRA and TROADES, which can find the realization of a logic function on a switching lattice with the fewest number of switches under a delay constraint given in terms of the number of switches in the critical path. While PHAEDRA is a dichotomic search algorithm that can obtain solutions with a small number of switches on small size logic functions, TROADES is a divide-and-conquer method that can find a solution using less computational effort and can easily handle larger size logic functions with respect to PHAEDRA. The experimental results show that the proposed algorithms can reduce the delay of a lattice realization of a logic function significantly at a cost of an increase in the number of switches. They can explore alternative lattice realizations of a logic function by changing the delay constraint, enabling a designer to choose the one that fits best in an application.
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