Information‐processing devices are the core components of modern electronics. Integrating them into textiles is the indispensable demand for electronic textiles to form close‐loop functional systems. ...Memristors with crossbar configuration are regarded as promising building blocks to design woven information‐processing devices that seamlessly unify with textiles. However, the memristors always suffer from severe temporal and spatial variations due to the random growth of conductive filaments during filamentary switching processes. Here, inspired by the ion nanochannels across synaptic membranes, a highly reliable textile‐type memristor made of Pt/CuZnS memristive fiber with aligned nanochannels, showing small set voltage variation (<5.6%) under ultralow set voltage (≈0.089 V), high on/off ratio (≈106), and low power consumption (0.1 nW), is reported. Experimental evidence indicate that nanochannels with abundant active S defects can anchor silver ions and confine their migrations to form orderly and efficient conductive filaments. Such memristive performances enable the resultant textile‐type memristor array to have high device‐to‐device uniformity and process complex physiological data like brainwave signals with high recognition accuracy (95%). The textile‐type memristor arrays are mechanically durable to withstand hundreds of bending and sliding deformations, and seamlessly unified with sensing, power‐supplying, and displaying textiles/fibers to form all‐textile integrated electronic systems for new generation human‐machine interactions.
A highly reliable textile‐type memristor is fabricated by designing Pt/CuZnS memristive fiber with aligned nanochannels, showing small set voltage variation (<5.6%) under ultralow set voltage (≈0.089 V). The resultant textile‐type memristor array with high device‐to‐device uniformity could seamlessly unify with sensing, power‐supplying, and displaying textiles/fibers to form all‐textile integrated electronic systems for new‐generation human–machine interactions.
Temporary overvoltage (TOV) is becoming one challenge for the integration of significant power electronics resources into a power system. To assess the risk of TOV in a Multi-Infeed Power Electronic ...System (MIPES), a worst-case estimation approach is proposed to assess TOV risk. The paper starts with analyzing the mechanism of TOV, which reveals that TOV is dominated by excessive reactive power resulting from comprehensive control laggings. Then, the principle of approximating the TOV for a Voltage Source Converter (VSC) connecting to an infinite bus is introduced within the context of the RMS model. After that, a method based on the concept of generalized short-circuit ratio for overvoltage (gSCR-TOV) is introduced to quantify the risk of TOV in a multi-bus system. This concept intends to permit screening to identify those nodes at greatest need for further EMT assessment. To localize these nodes, a concept of weighted sensitivity matrix is further proposed to pinpoint the bus subject to highest TOV in a MIPES. Finally, case studies of EMT time-domain simulations are carried out and verifies the effectiveness of the proposed methods.
Background: Narcotic drugs are used as an effective analgesic in diseases such as cancers and malignancies after surgery and addiction treatment. The available data show that the burden of addiction ...in Iranian society is not decreasing despite several thousand addiction treatment centers in the country. This issue reveals the importance of the proper use of narcotic drugs and the legal and controlled distribution in our society. One of the critical issues in medicine is the discussion of the correct supply of drugs, mainly controlled drugs, and narcotics, which are very prone to consumption and trafficking. Targeted distribution of these drugs can be a big step towards combating drug trafficking and drug abuse in Iran and preventing the illegal market for narcotic analgesics. The aim of this study was to investigate the distribution method of analgesic drugs in Iran. Methods: Qualitative method was used to study the distribution system and access to narcotic drugs in Iran. Data analysis was performed by an inductive method and developing models and themes. In the sampling process of experts, up to 40 interviews were conducted in person by the researcher. Results: The main factors affecting the distribution of narcotic drugs in Iran were identified, and solutions for the optimal distribution of these drugs were presented. This study showed the importance and role of regulatory bodies, monitoring system, supply and distribution system, electronic system, and the place of supply of narcotic drugs that have affected the distribution of narcotic drugs in Iran. Conclusion: The problem that can be seen outside the control of the organization's inspectors on the performance of these centers is due to a large number of pharmacies and MMT centers, and this is one of the disorders and obstacles to the principle of monitoring the distribution process within the system. Also, we need to consider the main factors affecting the distribution of narcotic drugs.
The research aimed to enhance the accuracy of setting and spiking skills among the players of the University of Baghdad's volleyball team for the academic year (2022-2023) through a visual stimuli ...system designed by the researcher. The system works to develop the accuracy of two skills simultaneously during the operation of the system, through the accuracy of setting on an electronic board that contains numbers. Based on this, the setter prepares for the required position according to the number displayed on the board. The system also works to enhance the accuracy of spikes through lights that operate simultaneously with the numbers and within the opponent's area. Based on the location of the light that illuminates the area, the player performs a spike (either straight or diagonal) onto the illuminated area, according to the type of stimulus. This integrated approach not only improves the precision of spiking skills but also provides realistic game scenarios, enhancing training effectiveness. The researcher intentionally employed the experimental method for a single group with both pre-test and post-test. The research population and sample comprised players from the university volleyball team for the 2022/2023 season, who were students of the College of Physical Education and Sports Sciences, totalling 18 players. The research sample was intentionally selected, excluding the libero players, of whom there were 2. In addition to excluding the two players involved in the pilot experiment, the sample size was thus (14) players, representing (77.778%) of this population. Following the procedural steps, statistical analyses, and verification of scientific principles and parameters, the researcher arrived at the final form of the study. The statistical analysis was conducted using the SPSS system to derive conclusions and applications aimed at improving the spatial accuracy of both researched skills based on their correlation with enhancing performance and motor control in the specific parts of each skill. The educational tool helped to define this free activity within the parameters of correct performance through the lighting controlled by the coach to direct the players' tasks and increase their attention in each part of the performance. This approach also catered to the detailed nuances required to showcase them along with proper skillful performance. Thus, the role of visual stimuli exercises is to facilitate the precise direction of the ball to the designated location through control and manipulation, by accelerating cognitive processes for players and enhancing their effectiveness. On the one hand, they support the motor pathway of the required skillful behaviour and guide it, while also accelerating cognitive processes, or more precisely, increasing their effectiveness in organized training without exaggeration in the training environment. The researcher concluded that exercises involving visual stimuli within an innovative electronic system aid in enhancing the accuracy of the setting skill and improving the accuracy of the spiking skill in volleyball among the players of the University of Baghdad team.
The research aimed to enhance the accuracy of setting and spiking skills among the players of the University of Baghdad's volleyball team for the academic year (2022-2023) through a visual stimuli system designed by the researcher. The system works to develop the accuracy of two skills simultaneously during the operation of the system, through the accuracy of setting on an electronic board that contains numbers. Based on this, the setter prepares for the required position according to the number displayed on the board. The system also works to enhance the accuracy of spikes through lights that operate simultaneously with the numbers and within the opponent's area. Based on the location of the light that illuminates the area, the player performs a spike (either straight or diagonal) onto the illuminated area, according to the type of stimulus. This integrated approach not only improves the precision of spiking skills but also provides realistic game scenarios, enhancing training effectiveness. The researcher intentionally employed the experimental method for a single group with both pre-test and post-test. The research population and sample comprised players from the university volleyball team for the 2022/2023 season, who were students of the College of Physical Education and Sports Sciences, totalling 18 players. The research sample was intentionally selected, excluding the libero players, of whom there were 2. In addition to excluding the two players involved in the pilot experiment, the sample size was thus (14) players, representing (77.778%) of this population. Following the procedural steps, statistical analyses, and verification of scientific principles and parameters, the researcher arrived at the final form of the study. The statistical analysis was conducted using the SPSS system to derive conclusions and applications aimed at improving the spatial accuracy of both researched skills based on their correlation with enhancing performance and motor control in the specific parts of each skill. The educational tool helped to define this free activity within the parameters of correct performance through the lighting controlled by the coach to direct the players' tasks and increase their attention in each part of the performance. This approach also catered to the detailed nuances required to showcase them along with proper skillful performance. Thus, the role of visual stimuli exercises is to facilitate the precise direction of the ball to the designated location through control and manipulation, by accelerating cognitive processes for players and enhancing their effectiveness. On the one hand, they support the motor pathway of the required skillful behaviour and guide it, while also accelerating cognitive processes, or more precisely, increasing their effectiveness in organized training without exaggeration in the training environment. The researcher concluded that exercises involving visual stimuli within an innovative electronic system aid in enhancing the accuracy of the setting skill and improving the accuracy of the spiking skill in volleyball among the players of the University of Baghdad team.
Herein, we present an approach to create a hybrid between single-atom-dispersed silver and a carbon nitride polymer. Silver tricyanomethanide (AgTCM) is used as a reactive comonomer during templated ...carbon nitride synthesis to introduce both negative charges and silver atoms/ions to the system. The successful introduction of the extra electron density under the formation of a delocalized joint electronic system is proven by photoluminescence measurements, X-ray photoelectron spectroscopy investigations, and measurements of surface ζ-potential. At the same time, the principal structure of the carbon nitride network is not disturbed, as shown by solid-state nuclear magnetic resonance spectroscopy and electrochemical impedance spectroscopy analysis. The synthesis also results in an improvement of the visible light absorption and the development of higher surface area in the final products. The atom-dispersed AgTCM-doped carbon nitride shows an enhanced performance in the selective hydrogenation of alkynes in comparison with the performance of other conventional Ag-based materials prepared by spray deposition and impregnation–reduction methods, here exemplified with 1-hexyne.
In the last years, gait phase partitioning has come to be a challenging research topic due to its impact on several applications related to gait technologies. A variety of sensors can be used to feed ...algorithms for gait phase partitioning, mainly classifiable as wearable or non-wearable. Among wearable sensors, footswitches or foot pressure insoles are generally considered as the gold standard; however, to overcome some inherent limitations of the former, inertial measurement units have become popular in recent decades. Valuable results have been achieved also though electromyography, electroneurography, and ultrasonic sensors. Non-wearable sensors, such as opto-electronic systems along with force platforms, remain the most accurate system to perform gait analysis in an indoor environment. In the present paper we identify, select, and categorize the available methodologies for gait phase detection, analyzing advantages and disadvantages of each solution. Finally, we comparatively examine the obtainable gait phase granularities, the usable computational methodologies and the optimal sensor placements on the targeted body segments.
•Electronic and magnetic properties of borophene can be effectively tuned by the adsorption of 3d transition metal atoms.•The borophene tends to be ferromagnetic when Ti, V, Cr, Mn, and Fe atoms are ...adsorbed.•The origin of the ferromagnetism is analyzed based on the Stoner itinerant ferromagnetic model.
The electronic and magnetic properties of borophene functionalized by 3d transition metal (TM) atom adsorption are investigated by using first-principles calculations. The results show that the 3d TM atoms can be adsorbed on borophene with high binding energies ranging between 5.9 and 8.3 eV. Interestingly, the originally nonmagnetic borophene tends to be ferromagnetic when Ti, V, Cr, Mn, and Fe atoms are adsorbed, and the magnetic moments are dominated by the TM atoms. The origin of the ferromagnetism is discussed based on the Stoner criterion. Our results indicate that the magnetic properties of borophene can be effectively tuned through the adsorption of 3d TM atoms, which could have promising applications in spintronics and nanoelectronics.
The advantages and prospects are considered of using an electronic system for spatial measurement of air motion parameters having a fixed incoming flow receiver and ultrasonic instrumentation ...channels with frequency primary informative signals and a built-in computer on various aviation equipment and small-sized aircraft. Analytical models were developed, the calculation and analysis of instrumental and methodic errors of the instrumentation channels of the electronic system under consideration was carried out.
•Detailed parametric studies of thermo-physical properties of CF and PCMs for electronic thermal management systems.•Design guidelines for selecting CF/PCM thermo physical properties at different ...operating conditions and power levels.•Effects of carbon foam structures, module thickness and power levels are investigated.
The focus of the present work is to perform detailed parametric studies for electronic thermal management systems using different carbon foam structures of different porosities and skeleton thermal conductivities saturated with different phase change materials (PCMs) of different fusion temperatures, heat of fusions and thermal conductivities. Different thicknesses of thermal management modules and power densities levels are also included in the parametric study. The analysis was carried out using a validated finite element numerical model based on volume averaging technique and single-domain energy equation. The results show that decreasing CF and PCM thermal conductivities, increasing carbon foam porosity and increasing module height increase the module temperature and delay the approaching steady state temperature. The transient module temperature decreased and the time of approaching steady state temperature is delayed with increasing PCM heat of fusion. However the module fusion temperature does not show any strong effect on module temperature. Design guidelines for selecting the combinations of CF/PCM thermo-physical properties are presented for different operating conditions and power levels.
On July 30, 2022, the government's policy in terminating access to unregistered private scope electronic system operators to several internet platforms including: Paypal, Yahoo, Epic Games, Steam, ...Dota, Counter Strike, Xandr.com, and Origin, has resulted in material and immaterial losses to citizens who use the platform of unregistered private scope electronic system operators. The government's policy in terminating access or blocking access to PSE LP, harms the digital rights of citizens. Blocking has an impact on the inaccessibility of services and loss of revenue due to termination of PSE LP access. Citizens are eligible for legal protection, which includes preventive and repressive legal protection. Preventive protection includes the right to communicate and access information guaranteed in human rights provisions. Repressive protection includes the right to legal guarantees for legal remedies in filing state administrative court lawsuits.
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