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A patent has been issued for an image forming apparatus by Canon Kabushiki Kaisha. The patent describes a configuration that notifies the user of the position of a recording medium remaining in the apparatus. The invention includes a conveyance unit with sensors and light sources that determine the position of a paper jam and control the corresponding light source to turn on. The apparatus also includes a capacitor to reduce voltage fluctuation and a shut-off mechanism when the conveyance unit is pulled out. The invention aims to provide a less expensive configuration for notifying paper jams in an image forming apparatus. [Extracted from the article]

A new report from the University of Florence in Italy provides an extensive review of monitoring methods for electrical power lines, with a focus on high-voltage and medium-voltage systems. The objective of these techniques is to prevent catastrophic failures by detecting partial damage or deterioration of components and allowing for organized maintenance operations. The paper discusses the coordination of protection devices and the implementation of artificial intelligence algorithms to improve the reliability of the network. It also highlights diagnostic techniques, protection devices, and prognostic methods, emphasizing the role of artificial intelligence and offering guidelines for choosing between different approaches. [Extracted from the article]

Nippon Paper Industries Co. completed a 5-megawatt biomass power station in the southwestern prefecture of Kumamoto, the company said in a statement Wednesday. The plant will use timber from forest thinning as fuel and the electricity produced at the station will be sold to Kyushu Electric Power Co. under the country's incentive program for clean energy, according to the statement. [Extracted from the article]

Purpose: Currently, more renewable energy resources with advanced technology levels are incorporated in the electric power networks. Under this circumstance, the attainment of optimal economic dispatch is very much essential by the power system as the system requires more power generation cost and also has a great demand for electrical energy. Therefore, one of the primary difficulties in the power system is lowering the cost of power generation, which includes both economic and environmental costs. This study/paper aims to introduce a meta-heuristic algorithm, which offers an solution to the combined economic and emission dispatch (CEED). Design/methodology/approach: A novel algorithm termed Levy-based glowworm swarm optimization (LGSO) is proposed in this work, and it provides an excellent solution to the combined economic and emission dispatch (CEED) difficulties by specifying the generation of the optimal renewable energy systems (RES). Moreover, in hybrid renewable energy systems, the proposed scheme is extended by connecting the wind turbine because the thermal power plant could not control the aforementioned costs. In terms of economic cost, emission cost and transmission loss, the suggested CEED model outperforms other conventional schemes genetic algorithm, Grey wolf optimization, whale optimization algorithm (WOA), dragonfly algorithm (DA) and glowworm swarm optimization (GSO) and demonstrates its efficiency. Findings: According to the results, the suggested model for Iteration 20 was outperformed GSO, DA and WOA by 23.46%, 97.33% and 93.33%, respectively. For Iteration 40, the proposed LGSO was 60%, 99.73% and 97.06% better than GSO, DA and WOA methods, respectively. The proposed model for Iteration 60 was 71.50% better than GSO, 96.56% better than DA and 95.25% better than WOA. As a result, the proposed LGSO was shown to be superior to other existing techniques with respect to the least cost and loss. Originality/value: This research introduces the latest optimization algorithm known as LGSO to provide an excellent solution to the CEED difficulties by specifying the generation of the optimal RES. To the best of the authors' knowledge, this is the first work that utilizes LGSO-based optimization for providing an excellent solution to the CEED difficulties by specifying the generation of the optimal RES. [ABSTRACT FROM AUTHOR]

This paper introduces an on-chip distributed power delivery grid (DPDG) with cooperative regulation and IR-drop reduction based on analog-assisted digital LDOs (AADLDOs), which inherit the merits of low output ripple and sub-LSB current supply ability from the analog control, and the advantage of low supply voltage operation and adaptive fast response from the digital control. With the distributed power delivery topology, the IR-drop across the power supply rail can be reduced, especially in large area power-supply applications. The AADLDOs in the power delivery grid work cooperatively to obtain a balance between improved response speed and power consumption. A prototype of a 3 × 3 power grid with 9 AADLDOs, providing a total of 500-mA maximum load current with an on-chip 0.9-nF output capacitor, is fabricated in a 65-nm CMOS process to demonstrate the proposed DPDG concept and the effectiveness of this scheme. A maximum voltage undershoot of 125mV is measured with a 450mA/20ns load step, resulting a figure-of-merit as low as 0.249ps. [ABSTRACT FROM AUTHOR]

Purpose: This paper aims to study the possibility of controlling the electromagnetic stirrer (EMS) is fundamental in a continuous casting line to achieve the desired properties of homogeneity and mechanical strength in the solidified cast. Design/methodology/approach: Coupled electromagnetic (EM) and fluid dynamic (FD) simulations allow to predict the mixing effect on molten metal, in terms of velocity amplitude and shape of the flow. This paper describes the numerical results of EMS effect within a cylindrical crucible, surrounded by a solenoidal inductor, filled with a low melting temperature alloy, i.e. GalInStan. Findings: Induced forces and resulting velocity distribution of the flow of the liquid metal have been calculated depending on varying amplitude and frequency of the supplied current. As expected, at a given amplitude of the current supply, the velocity distribution shows a maximum at a certain frequency while the intensity of electrodynamic forces monotonically increase as the frequency increases Originality/value: The paper deals with simply models and experiments applied to coupled EM and FD problem, to assess the applied methodology. [ABSTRACT FROM AUTHOR]

Purposes: The purpose of this paper is to identify on the instantaneous electrical power basis of a nonsinusoidal periodic current three-phase asymmetric system, active and reactive positive, negative and zero sequence powers, taking into account higher harmonics. The main power theories, including those embodied in the IEEE 1459 standard, do not allow to evaluate some of power components. Design/methodology/approach: A well-known fact is that the three-phase AC system total power with the symmetry of currents and voltages is constant. It corresponds to the electrical energy transfer process in a DC system. In this case, the electrical energy transmission can be taken as high quality. It has been established that the components of active and reactive powers are because of the product of current and voltage of unidirectional sequences. The orthogonal components of the oscillating power are because of the product of the voltage and current components of different sequences, with the exception of the zero sequence. Findings: For an unbalanced nonsinusoidal mode of a three-phase system, the components of instantaneous power were defined, corresponding to the active and reactive positive and negative and zero sequences powers with the selection of the fundamental and higher harmonics. The active and reactive powers of sequences were divided into two categories – consumed and generated. Originality/value: It is proposed to use the ratio of "interfere" power RMS value to the total power RMS value to assess the instantaneous power distortion. [ABSTRACT FROM AUTHOR]

In this paper, two output matching networks (OMNs) are proposed for integrated class-J and class-J−1 mode power amplifiers (PAs). The first MN provides the required load impedances of the class-J mode (i.e., $Z(f_{0})=R_{\mathrm{ opt}}+jR_{\mathrm{ opt}}$ and $Z({2}f_{0})=-j({3}\pi /{8})R_{\mathrm{ opt}}$), whereas the second MN realizes the optimal impedances of class-J−1 PAs (i.e., $Z(f_{0})=R_{\mathrm{ opt}}-jR_{\mathrm{ opt}}$ and $Z({2}f_{0})=j({3}\pi /{8})R_{\mathrm{ opt}}$). Detailed theoretical analyses are presented for each MN, and the values of matching components (i.e., inductors and capacitors) are obtained in terms of $R_{\mathrm{ opt}}$. Analytical derivations are verified by simulation results, while bandwidth and loss performances of each MN are also characterized. Two proof-of-concept class-J and class-J−1 PAs are designed and implemented in a 0.25- $\mu \text{m}$ GaAs process, where the proposed OMNs are employed in the designed circuits. The manufactured PAs show ≥28 dBm output power, ≥65% drain efficiency, and ≥61% power-added efficiency at 2 GHz. [ABSTRACT FROM AUTHOR]

This paper presents an efficiency-enhanced low-profile zero-voltage-transition (ZVT) synchronous non-inverting buck-boost converter for 48-V tens-of-Watt output applications. By only using three auxiliary components shared between two switching nodes, zero-voltage switching (ZVS) of all four power switches and zero-current switching of the auxiliary switch are achieved in the proposed converter to minimize the switching power loss. Compared with the existing ZVT topologies, the proposed converter reduces the required number of auxiliary components, thereby decreasing the converter volume and power loss. In addition, the proposed converter can be configured into the buck mode with full ZVS capability to support a wide input range from 36 V to 90 V. Experimental results show that the proposed converter can operate at 1 MHz and deliver a maximum output power of 75 W. The measured peak power efficiencies achieve 92.5% and 96.3% in the buck-boost mode and buck mode, respectively. Compared with the state-of-the-art ZVS-based buck-boost counterpart, the proposed converter reduces the volume of the auxiliary circuit by ~2 times even with 28% increase in the maximum load current and two times reduction in the switching frequency, and provides higher peak power efficiencies in both buck-boost and buck modes. [ABSTRACT FROM AUTHOR]

Purpose Efficient calculations of the transient behaviour after disturbances of large-scale power systems are complex because of, among other things, the non-linearity and the stiffness of the overall state equation system (SES). Because of the rising amount of flexible transmission system elements, there is an increasing need for reduced order models with a negligible loss of accuracy. With the Extended Nodal Approach and the application of the singular perturbation method, it is possible to reduce the order of the SES adapted to the respective setting of the desired tasks and accuracy requirements.Design/methodology/approach Based on a differential-algebraic equation for the electric power system which is formulated with the Extended Nodal Approach, the automatic decomposition into reduced order models is shown in this paper. The paper investigates the effects of different coordinate systems for an automatic order reduction with the singular perturbation method, as well as a comparison of results calculated with the full and reduced order models.Findings The eigenvalues of the full system are approximated sufficiently by the three subsystems. A simulation example demonstrates the good agreement between the reduced order models and the full model independent of the choice of the coordinate system. The decomposed subsystems in rotating coordinates have benefits as compared to those in static coordinates.Originality/value The paper presents a systematic decomposition based only on a differential-algebraic equation system of the electric power system into three subsystems. [ABSTRACT FROM AUTHOR]

When the drawer unit is pulled out from the image forming apparatus, the LED glows on the electric power accumulated in the capacitor. The image forming apparatus according to claim 1, wherein the conveyance unit further includes the motor." "Description of the Related Art "There has been conventionally known a configuration in which a drawer unit including a conveyance path is pulled out from an image forming apparatus so that a recording medium remaining in the image forming apparatus can be removed. [Extracted from the article]

This paper presents a self-biased subthreshold CMOS voltage reference for low-power and low-voltage applications. To achieve near-zero line sensitivity and high PSRR, a compensation structure utilizing the drain-induced-barrier-lowering (DIBL) effect is proposed to sink a supply dependent current from the output branch of a self-biased CMOS reference, which cancels the bias current’s dependence on the supply voltage due to the DIBL effect. Fabricated in a 0.18- $\mu \text{m}$ CMOS technology, the measurement results demonstrate that the proposed circuit could operate under a minimum supply voltage of 0.34 V and generate a reference voltage of 147 mV, while consuming only 48 pW power. The PSRRs measured at 1 Hz and 10 kHz are −70.6 dB and −50.2 dB, respectively. For 39 measured samples, the mean line sensitivity is 0.019%/V in a supply voltage range from 0.34 to 1.8 V, and the average temperature coefficients before and after trimming are 64.81 and 10.06 ppm/°C in 0 ~ 100 °C temperature range, respectively. The total area of the voltage reference circuit is 0.0332mm2. [ABSTRACT FROM AUTHOR]

Purpose Wide-bandgap (WBG) semiconductors have emerged as a disruptive technology in the power electronics sphere. This paper aims to analyse and discuss the importance for induction heating systems and gives some examples and highlights some future design trends and perspectives.Design/methodology/approach The benefits of WBG semiconductors are reviewed with a special emphasis on induction heating applications.Findings WBG devices enable the design of higher-performance induction heating power supplies. A significant selection of the reported converters is discussed, highlighting the benefits of this technology.Originality/value This paper highlights the benefits of WBG semiconductors and their potential to change and improve induction heating technology in the next years. [ABSTRACT FROM AUTHOR]

Purpose Litz wire manufacturing using mechanical procedures presents several limitations regarding reliability and repeatability, especially when a small strand diameter is used. This paper aims to propose a power supply design for Litz wire manufacturing using a high-frequency high-performance resonant converter.Design/methodology/approach This paper proposes the design of a resonant power supply for induction heating specially designed to tackle with the challenge of heating Litz wires quickly.Findings The proposed converter enables the removal of the isolating coating from the Litz wire through induction heating, improving significantly the manufacturing process.Originality/value The proposed converter improves significantly the manufacturing process of Litz wire through induction heating, with economic and reliability benefits. [ABSTRACT FROM AUTHOR]

Dynamic flip-flop conversion (DFFC) is a time borrowing method for improving the performance of digital circuits. Existing types of DFFC [11], [12] suffer from successive critical and critical feedback paths that are frequently seen in digital circuits. Moreover, they are unable to increase the performance of the designs with short sequential depth. In this paper, we introduce a hybrid technique which utilizes DFFC together with a dynamic clock stretching mechanism. Our technique is able to mitigate the problems of successive critical and critical feedback path structures even in the presence of process variations. The results show that our hybrid technique is able to increase the performance of some ITC'99 and ISCAS'89 benchmarks by 24.4% on average while DFFC Type C increases the performance only by 8.4% on average. Furthermore, we have shown that our hybrid technique is able to tolerate process variations, 18% power supply variation, and 100 °C temperature variations, 27.3%, 16.4%, and 13.3% better than the state-of-the-art methods on average, respectively. [ABSTRACT FROM PUBLISHER]

Purpose The purpose of this paper is to introduce a reverted way to design electrical machines. The authors present a work flow that systematically yields electrical machine geometries from given air gap fields.Design/methodology/approach The solution process exploits the inverse Cauchy problem. The desired air gap field is inserted to this as the Cauchy data, and the solution process is stabilized with the aid of linear algebra.Findings The results are verified by solving backwards the air gap fields in the standard way. They match well with the air gap fields inserted as an input to the system.Originality/value The paper reverts the standard design work flow of electrical motor by solving directly for a geometry that yields the desired air gap field. In addition, a stabilization strategy for the underlying Cauchy problem is introduced. [ABSTRACT FROM AUTHOR]

In this paper, a transformer (TF)-based two-stage dual-radial power splitting/combining architecture with advantages of in-phase RF power splitting/combining scheme, compact splitting/combining network, uniform dc distribution, and symmetric dc current supply/return path is developed. To verify the feasibility of the architecture, a 5.2-GHz high-gain fully integrated PA is designed and fabricated on standard 0.18- $\mu \text{m}$ CMOS technology. The CMOS PA transmits 30.1-dBm saturation power (${P}_{{sat}}$) with 22.2% power added efficiency (PAE) at 5.2 GHz. The measured power gain is 30.8 dB and the output 1-dB compression point (${{OP}}_{{1dB}}$) is 24.1 dBm. The EVM has been measured with IEEE 802.11ac WLAN modulated signals. Using the 20-MHz bandwidth OFDM 64-QAM modulated signal, the PA meets the WLAN EVM specification of 5.6% up to 19.8-dBm linear output power. For a high data rate of 80-MHz bandwidth OFDM 256-QAM signal, the PA transmits linear output power of 17 dBm with 2.5% EVM. To the best of our knowledge, the CMOS PA achieves the highest output power, the highest power gain, and the highest OP1dB with decent PAE among other reported fully integrated CMOS PAs around 5 GHz to date. [ABSTRACT FROM AUTHOR]

Approximate circuits have been considered for applications that can tolerate some loss of accuracy with improved performance and/or energy efficiency. Multipliers are key arithmetic circuits in many of these applications including digital signal processing (DSP). In this paper, a novel approximate multiplier with a low power consumption and a short critical path is proposed for high-performance DSP applications. This multiplier leverages a newly designed approximate adder that limits its carry propagation to the nearest neighbors for fast partial product accumulation. Different levels of accuracy can be achieved by using either OR gates or the proposed approximate adder in a configurable error recovery circuit. The approximate multipliers using these two error reduction strategies are referred to as AM1 and AM2, respectively. Both AM1 and AM2 have a low mean error distance, i.e., most of the errors are not significant in magnitude. Compared with a Wallace multiplier optimized for speed, an $8\times 8$ AM1 using four most significant bits for error reduction shows a 60% reduction in delay (when optimized for delay) and a 42% reduction in power dissipation (when optimized for area). In a $16\times 16$ design, half of the least significant partial products are truncated for AM1 and AM2, which are thus denoted as TAM1 and TAM2, respectively. Compared with the Wallace multiplier, TAM1 and TAM2 save from 50% to 66% in power, when optimized for area. Compared with existing approximate multipliers, AM1, AM2, TAM1, and TAM2 show significant advantages in accuracy with a low power-delay product. AM2 has a better accuracy compared with AM1 but with a longer delay and higher power consumption. Image processing applications, including image sharpening and smoothing, are considered to show the quality of the approximate multipliers in error-tolerant applications. By utilizing an appropriate error recovery scheme, the proposed approximate multipliers achieve similar processing accuracy as exact multipliers, but with significant improvements in power. [ABSTRACT FROM AUTHOR]

Purpose The purpose of this paper is to identify faults in distribution systems which are unavoidable because of adverse weather conditions and unexpected accidents. Hence, quick fault location is vital for continuous power supply. However, most fault location methods depend on the stored database for locating fault. The database is created by simulation, which is time consuming. Therefore, in this work, a comprehensive fault location method to detect faulty section and fault distance from one-ended bus using limited simulated data is proposed.Design/methodology/approach The work uses voltage sag data measured at a primary substation. Support vector machine estimates the data which are not simulated. The possible faulty section is determined using matching approach and fault distance using mathematical analysis.Findings This work proposed a ranking analysis for multiple possible faulty sections, and the fault distance is calculated using Euclidean distance approach.Practical implications The research work uses Malaysian distribution system as it represents a practical distribution system with multiple branches and limited measurement at primary substation. The work requires only metering devices to identify fault which is cost effective. In addition, the distribution system is simulated using real-time PSCAD by which the capability of proposed method can be fully tested.Originality/value The paper presents a new method for fault analysis. It reduces simulation time and storage space of database. The work identifies faulty section and ranks the prior faulty section. It also identifies fault distance using a mathematical approach. [ABSTRACT FROM AUTHOR]

Purpose In high voltage direct current (HVDC), power cables heat is generated inside the conductor and the insulation during operation. A higher amount of the generated heat in comparison to the dissipated one, results in a possible thermal breakdown. The accumulation of space charges inside the insulation results in an electric field that contributes to the geometric electric field, which comes from the applied voltage. The total electric field decreases in the vicinity of the conductor, while it increases near the sheath, causing a possible change of the breakdown voltage.Design/methodology/approach Here, the thermal breakdown is studied, also incorporating the presence of space charges. For a developed electro-thermal HVDC cable model, at different temperatures, the breakdown voltage is computed through numerical simulations.Findings The simulation results show a dependence of the breakdown voltage on the temperature at the location of the sheath. The results also show only limited influence of the space charges on the breakdown voltage.Research limitations/implications The study is restricted to one-dimensional problems, using radial symmetry of the cable, and does not include any aging or long-term effect of space charges. Such aging effect can locally increase the electric field, resulting in a reduced breakdown voltage.Originality/value A comparison of the breakdown voltage with and without space charges is novel. The chosen approach allows for the first time to assess the influence of space charges and field inversion on the thermal breakdown. [ABSTRACT FROM AUTHOR]

Considering the coupling relationships between transfer power and efficiency in continuous-mode inductive power transfer (IPT) systems, this paper presents a pulse energy injection inverter for IPT systems. With a new topology and parameters tuning, the pulse energy injection IPT system with the proposed inverter can work in switch-mode to decouple transfer power with efficiency. Moreover, the transfer power is only decided by the duty ratio of the semiconductor switch, rather than affected by the transmitting resonator, receiving (Rx) resonator, and load. In this way, the pulse energy injection IPT system holds an operating frequency much lower than the resonant frequency to reduce switch loss and improve transfer efficiency. Experiments verify that the IPT system with proposed inverter maintains a high level efficiency within the middle range and realizes nearly 80% supply to load transfer efficiency even in a weak coupling coefficient ( $k=0.044$ ). Finally, experimental analysis implies that the pulse energy injection inverter is suitable for full-range transmission, and high-Q IPT systems with uncertainty in Rx circuits or load. [ABSTRACT FROM AUTHOR]

Finance Division has reportedly shown willingness to allocate Rs 450 billion for power sector subsidy in FY 2023-24 as compared to Rs 350 billion for the outgoing fiscal year (2022-23), well informed sources told Business Recorder. Answering to an inquiry, the sources said, Power Division has previously made a move concerning program/credit conditions by Global Financial Asset (IMF) and World Bank. [Extracted from the article]

Purpose: For a given rotor, the study of the impact of stator MMF from different winding distributions is usually carried out using analytical model under some simplifying hypotheses to limit time computation. To get more accurate results, finite element model is thus more suitable. However, testing different combinations of stator windings with the same rotor can be tedious when considering the stator slots. Indeed, this introduces mesh constraint, reluctance variation of the air gap and possibly taking into account of the connection between stator coils. To avoid this, a current sheet supplied such to represent the stator MMF and spread all around the inner slotless stator surface can be used. In addition, such an approach can be very useful to didactically assess the effect of each winding space harmonic on machine performance separately. The purpose of this paper is to use a current sheet coupled to an external analytical tool in order to easily test different windings or to quantify the effect of a given spatial harmonic of the winding. Design/methodology/approach: In the proposed approach, the current sheet supply is obtained from an analytical tool that allows determining the spatiotemporal stator MMF of any winding considered. Moreover, stator teeth height is not modelled, and only the thickness of the stator yoke is considered along with the same air gap thickness. Results with the proposed approach are compared to the real stator modelling for two different winding configurations. Last, linear and non-linear magnetic material behaviours are investigated to validate the proposed approach in term of magnetic distribution. Findings: For both studied cases, results in term of local and global physical quantities show good agreement between the real stator modelling and the proposed approach. Originality/value: Current sheet is used with finite element model to study the inherent effect of different winding configurations on local and global physical quantities of an AC electrical machine. The proposed approach avoids the constraints in terms of stator slot geometry and electrical circuit definition. This is very useful to quickly test different winding configurations or to isolate a specific winding space harmonic to quantify its effect on the electrical performances. This cannot be performed using classical modelling as all space harmonics are taken into account. [ABSTRACT FROM AUTHOR]

This paper reviews significant changes relevant to data/comm cables in the 2017 National Electrical Code®. The most significant changes address the use of local area network (LAN) cables for simultaneously powering and communicating/signaling with equipment using powering schemes such as Power over Ethernet (PoE) and HDBaseT. The primary safety issue, overheating of the cables, is addressed by requiring that the current in the conductors not exceed the ampacity of the conductors and the temperature of the cables not exceed the cable temperature rating. There are new requirements related to temperature ratings and marking of data/comm cables. An ampacity table, which includes derating to account for heat build-up in cable bundles, has been introduced for the fine wire gauges (22-26) used in LAN cables. A new type of data/comm cable has been introduced, a "limited-power" cable, which has a listed ampacity. Other changes relevant to data/comm cables include informational notes (actually a warning) about the consequences of painting cables and new provisions to permit the installation of undercarpet communications cables under modular flooring. [ABSTRACT FROM AUTHOR]

Purpose A saturated iron core superconducting fault current limiter (SISFCL) has an important role to play in the present-day power system, providing effective protection against electrical faults and thus ensuring an uninterrupted supply of electricity to the consumers. Previous mathematical models developed to describe the SISFCL use a simple flux density-magnetic field intensity curve representing the ferromagnetic core. As the magnetic state of the core affects the efficient working of the device, this paper aims to present a novel approach in the mathematical modeling of the device with the inclusion of hysteresis.Design/methodology/approach The Jiles–Atherton’s hysteresis model is utilized to develop the mathematical model of the limiter. The model is numerically solved using MATLAB. To support the validity of model, finite element model (FEM) with similar specifications was simulated.Findings Response of the limiter based on the developed mathematical model is in close agreement with the FEM simulations. To illustrate the effect of the hysteresis, the responses are compared by using three different hysteresis characteristics. Harmonic analysis is performed and comparison is carried out utilizing fast Fourier transform and continuous wavelet transform. It is observed that the core with narrower hysteresis characteristic not only produces a better current suppression but also creates a higher voltage drop across the DC source. It also injects more harmonics in the system under fault condition.Originality/value Inclusion of hysteresis in the mathematical model presents a more realistic approach in the transient analysis of the device. The paper provides an essential insight into the effect of the core hysteresis characteristic on the device performance. [ABSTRACT FROM AUTHOR]

High-mileage, multi-hour motorsport thattests the stamina of cars, of drivers, and ofspectators' abilities to keep drinking. European New Car Assessment Programme.Standardised car safety testing regime,founded in 1996 and whipped into shape byfirst chairman Max Mosley. Also the name for thesmall piece of paper left under the wipers ofcars such as the Aston Martin DBS, JaguarF-type and Ford Mustang V8 reading, 'Canyou PLEASE not start your car so loudly soearly in the morning. Sounds more excitingthan the cars it's sometimes attached to, e.g.Hyundai i30 Fastback, Rover 800 Fastback. [Extracted from the article]

A report from North China Electric Power University discusses the impact of residents' energy consumption behavior on carbon reduction targets and related policies in Beijing, China. The study proposes an innovative analytical framework that integrates internal psychological factors and external environmental factors to better understand energy consumption behavior. By incorporating economic factors, policy impact, convenience of consumption, knowledge level, behavioral expectations, and consumption habits, the framework provides a more comprehensive understanding of residents' energy consumption behavior. The research concludes that this framework can contribute to the design and enhancement of low-carbon policies. [Extracted from the article]

A new report from North China Electric Power University highlights the increasing vulnerability of electric power substations to physical attacks, such as vandalism and theft. The research emphasizes the need for robust security measures and regular security audits to identify vulnerabilities and enhance the resilience of substations against evolving threats. The report provides a comprehensive guideline for the physical security auditing procedure, which is crucial for the reliable operation of the power grid. This information is important for understanding the challenges faced by utilities providers and ensuring the safety of power infrastructure. [Extracted from the article]

A recent study conducted by researchers at North China University of Water Resources and Electric Power explores the use of deep learning-based Convolutional Neural Networks (CNN) to automatically identify depressive symptoms in college students. The study focuses on analyzing facial behavior as a direct and easily accessible source of behavioral data. The researchers found that depressed patients exhibit unique behavioral patterns, including reduced positive emotional feedback, enhanced negative emotional feedback, misjudgment of neutral stimuli as negative stimuli, and slow changes in expression behavior. The CNN-LSTM model achieved a recognition accuracy of 73.21% and a recall rate of 85.71% when applied, making it suitable for primary screening of depression in college students. This research provides a methodological basis and technical support for the automatic identification of depressive symptoms. [Extracted from the article]

The article discusses the rebranding of UFOs as UAPs (unidentified anomalous phenomena) and the increasing interest in studying these unexplained sightings. The stigma associated with reporting UFO sightings has hindered valuable information from being shared, including potential threats to aviation. Government agencies and officials are now recognizing the importance of investigating these phenomena and have established offices to collect and analyze reports. Scientists are using data analysis and advanced visualization tools to debunk many sightings and identify more mundane explanations, such as weather phenomena, aircraft, and satellites. However, there is still a need for better data collection and analysis to understand UAPs fully. Various research teams are developing instrument packages to observe and study UAPs, with the hope of making new discoveries. [Extracted from the article]

This article from Farm Collector provides an overview of the low-tension magneto, an important component of the low-tension ignition system used in gas engines. It explains how the magneto works and its role in generating a spark for ignition. The article emphasizes that the quality of a magneto should be determined by the current it produces, rather than its output voltage. It also explores the structure of the magneto and how it creates voltage spikes to generate the necessary current for ignition. The article concludes by cautioning against relying solely on voltage readings to assess the quality of a magneto. Additionally, the article mentions a promotional offer on the FarmCollector.com website that is set to expire on September 13, 2024, encouraging readers to visit the website for more information. [Extracted from the article]

Existing smart grid security research investigates different attack techniques and cascading failures from the attackers’ viewpoints, while the defenders’ or the operators’ protection strategies are somehow neglected. Game theoretic methods are applied for the attacker–defender games in the smart grid security area. Yet, most of the existing works only use the one-shot game and do not consider the dynamic process of the electric power grid. In this paper, we propose a new solution for a multistage game (also called a dynamic game) between the attacker and the defender based on reinforcement learning to identify the optimal attack sequences given certain objectives (e.g., transmission line outages or generation loss). Different from a one-shot game, the attacker here learns a sequence of attack actions applying for the transmission lines and the defender protects a set of selected lines. After each time step, the cascading failure will be measured, and the line outage (and/or generation loss) will be used as the feedback for the attacker to generate the next action. The performance is evaluated on W&W 6-bus and IEEE 39-bus systems. A comparison between a multistage attack and a one-shot attack is conducted to show the significance of the multistage attack. Furthermore, different protection strategies are evaluated in simulation, which shows that the proposed reinforcement learning solution can identify optimal attack sequences under several attack objectives. It also indicates that attacker’s learned information helps the defender to enhance the security of the system. [ABSTRACT FROM AUTHOR]

Keywords: Cancer; Health and Medicine; Oncology EN Cancer Health and Medicine Oncology 788 788 1 09/25/23 20230925 NES 230925 2023 SEP 26 (NewsRx) -- By a News Reporter-Staff News Editor at Immunotherapy Weekly -- Fresh data on cancer are presented in a new report. According to the news reporters, the research concluded: "This paper provides a review of cancer treatment using TTF and highlights the key specifications required for efficient treatment. Tumour behaviour under TTF treatment varies based on the electric field intensity; the process of exposing the tumour cells to an electric field is called electroporation. [Extracted from the article]

This paper presents a time domain generalized semi-analytical solution for the class-E outphasing power amplifier (OPA). Instead of assuming ideal voltage sources for active devices, the proposed class-E OPA model obtains the circuit elements by analytically solving the class-E equations for two mutually loaded active devices and numerical optimization. The analysis takes into account the dc-feed inductor, duty-cycle, switch resistances and the class-E conditions at certain outphasing angle. Three different topologies are deduced from the proposed generalized model. The design equations for the circuit elements are derived analytically using the given class-E conditions. The overall outphasing performance is obtained numerically, and the optimum design settings are determined by the desired output power and efficiency characteristics. It will be shown that the proposed class-E OPAs can ideally maintain high efficiency (>80%) at 12-dB power back-off with a static square-wave drive signal. With 5-MHz UMTS downlink signal, the ideal average efficiency is more than 80%. The spectral and modulation requirements are satisfied when the predistortion is applied to the class-E OPA. [ABSTRACT FROM AUTHOR]

RAI Strategic Holdings Inc. has been issued a patent for smoking articles that simulate the experience of smoking without burning tobacco or producing combustion products. The articles use an electrical heating element and power source to deliver an inhalable substance in vapor or aerosol form. The patent describes the design and components of the smoking articles, including the cartridge body, inhalable substance medium, and control housing. The articles are designed to provide a consistent and satisfying smoking experience, with the option to include tobacco or other materials in the inhalable substance medium. The patent also includes various claims related to the design and configuration of the article. [Extracted from the article]

A patent application has been filed for a tobacco-containing smoking article by inventors from North Carolina. The application discusses various methods and materials used in the production of cigarettes, including filters, additives, and tobacco substitutes. It also mentions smoking articles that produce flavored vapor or visible aerosol. The patent application does not specify a particular company or institution. The smoking article described in the application is electrically-powered and produces aerosols with tobacco-derived components. It can take the form of a cigarette or other traditional smoking products and includes an outer housing, an electrical power source, heating elements, and a cartridge with tobacco and aerosol-forming material. The smoking article is designed to generate a flavorful and satisfying aerosol without burning the tobacco, and it includes a puff-actuated controller to regulate the heating elements. [Extracted from the article]

RAI Strategic Holdings Inc. has been issued a patent for a tobacco-containing smoking article that aims to alter the composition of mainstream tobacco smoke. The patent discusses various components and methods for achieving this, including the use of tobacco substitute materials and different types of smoking articles that produce flavored vapor or visible aerosol. The preferred smoking article is a cigarette that can be connected to an electrically powered aerosol generating device, which generates a thermally generated aerosol incorporating tobacco components. The patent also describes a method for controlling the generation of aerosol based on air draw through the smoking article. The patent was filed in July 2021 and published online in May 2024. [Extracted from the article]

The National Electric Power Regulatory Authority (Nepra) has urged the government to reform power generation contracts in response to public outcry over a significant tariff hike. Nepra has announced an investigation into overbilling by distribution companies due to changes in the meter reading mechanism. The government has provided a subsidy for residential consumers, but this relief has not been officially notified. Nepra has faced criticism for allegedly rubber-stamping government tariff hikes and failing to address inefficiencies in the power sector. The chairman of Nepra has called for drastic reforms to restore public confidence. [Extracted from the article]

This article compares the Peugeot 508 PSE and the Skoda Octavia vRS, both of which are fast estate cars. The author expresses a personal preference for fast estates due to their surprising performance. The Skoda Octavia vRS is praised for its ability to soothe on long journeys and entertain when needed, while the Peugeot 508 PSE is commended for its suspension control and cross-country pace. Ultimately, the author finds the Skoda Octavia vRS to be more enjoyable and better value for money, while acknowledging that the Peugeot 508 PSE offers more space and a visually interesting design. [Extracted from the article]

The article discusses the importance of planning and implementing green facilities for a sustainable future. It emphasizes the need for a financial commitment to integrating evolving green technologies and the involvement of expert consultants in the early stages of the project. The article also highlights the increasing global demand for energy and the importance of efficient energy usage and renewable energy sources. It provides case studies of successful green projects and emphasizes the benefits of an eco-friendly company culture. The article concludes by emphasizing the need for strategic planning and the recruitment of consulting organizations to achieve specific sustainability goals. [Extracted from the article]

Purpose: Thermal protection of a flange is critical for preventing tower icing and collapse of wind turbines (WTs) in extremely cold weather. This study aims to develop a novel thermal protection system for the WTs flanges using an electrical heat-tracing element. Design/methodology/approach: A three-dimensional model and the Poly-Hexacore mesh structure are used, and the fluid-solid coupling method was validated and then deployed to analyze the heat transfer and convection process. Intra-volumetric heat sources are applied to represent the heat generated by the heating element, and the dynamic boundary conditions are considered. The steady temperature and temperature uniformity of the flange are the assessment criteria for the thermal protection performance of the heating element. Findings: Enlarging the heating area and increasing the heating power improved the flange's temperature and temperature uniformity. A heating power of 4.9 kW was suitable for engineering applications with the lowest temperature nonuniformity. Compared with continuous heating, the increased temperature nonuniformity was buffered, and the electrical power consumption was reduced by half using pulse heating. Pulse heating time intervals of 1, 3 and 4 h were determined for the spring, autumn and winter, respectively. Originality/value: The originality of this study is to propose a novel electrical heat-tracing thermal protection system for the WTs flanges. The effect of different arrangements, heating powers and heating strategies was studied, by which the theoretical basis is provided for a stable and long-term utilization of the WT flange. [ABSTRACT FROM AUTHOR]

A patent application titled "Filter Assembly" has been published online, which relates to filters for medical devices, specifically a filter assembly for use in insufflation systems. The filter assembly includes a filter medium, a housing, and at least one heating element. The heating element is positioned in the housing and is configured to heat the filter medium. The aim of the filter assembly is to address issues related to water levels in humidification chambers and the positioning of filters in insufflation systems. Another patent application discussed in the article involves the use of radio frequency identification technology in surgical procedures, but specific details about the application and its impact on healthcare are not provided. [Extracted from the article]

RAI Strategic Holdings Inc. has been issued a patent for a tobacco-containing smoking article. The patent outlines various methods and materials used in the production of cigarettes, including the use of metallic particles, carbonaceous particles, and aerosol-forming materials. It also discusses the use of tobacco substitute materials and different types of smoking articles. The patent provides a comprehensive overview of the components and techniques involved in manufacturing smoking articles that provide tobacco enjoyment without burning tobacco. The invention includes cigarettes that can be used with an electrically powered aerosol generating device, as well as smoking articles that incorporate tobacco within an electrically-powered, aerosol-generating device. The articles produce flavorful and satisfying aerosols that mimic the sensory characteristics of traditional smoking products. The patent provides detailed descriptions and claims for the design and components of the smoking articles. [Extracted from the article]

A report from North China Electric Power University in Beijing, People's Republic of China, discusses the use of laser-induced cavitation bubbles in various applications, such as hydraulic machinery cavitation erosion, atomization, and biomedicine. The research focuses on the dynamics of cavitation bubbles near different boundaries, including rigid walls, angular walls, particles, hydrofoils, and droplets. The study provides insights for future research in this field. Financial support for the research came from the National Natural Science Foundation of China. The research has been peer-reviewed and published in the Journal of Hydrodynamics. [Extracted from the article]

A study conducted by researchers at North China Electric Power University in Beijing, China, explores the impact of users' energy use behavior on integrated energy systems (IES). The study proposes energy usage strategies based on integrated demand response (IDR) and develops a Stackelberg game-based simulation model that considers user-side flexible resources (FRs) and comfort cost. The research finds that the strategy developed with the consideration of FRs and consumer psychology can reduce the cost of purchasing energy for users by 17.14% and increase consumer surplus by 11.58%. The study also suggests that introducing user-side gas boilers and distributed energy storage can further benefit users and improve load regulation capabilities for integrated energy systems. [Extracted from the article]

South Korea is considering the need for more nuclear power plants in order to achieve its climate targets and reduce reliance on coal. According to a report by the Korea Energy Information Culture Agency, atomic power would need to account for 40% to 45% of electricity supply, up from the current 30%, in order for South Korea to achieve net-zero emissions by mid-century. Renewables would also need to increase to 35%, with natural gas and carbon-free sources making up the remainder. The government is considering plans to start construction on new nuclear reactors as early as this year. [Extracted from the article]