Log in

Relevant bibliographies by topics / HV network / Journal articles

To see the other types of publications on this topic, follow the link: HV network.

Journal articles on the topic 'HV network'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'HV network.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Lazaropoulos, Athanasios G. "Wireless Sensor Network Design for Transmission Line Monitoring, Metering, and Controlling: Introducing Broadband over Power Lines-Enhanced Network Model (BPLeNM)." ISRN Power Engineering 2014 (June 4, 2014): 1–22. http://dx.doi.org/10.1155/2014/894628.

Full text

Abstract:

This paper introduces the broadband over power lines-enhanced network model (BPLeNM) that is suitable for efficiently delivering the generated data of wireless sensor networks (WSNs) of overhead high-voltage (HV) power grids to the substations. BPLeNM exploits the high data rates of the already installed BPL networks across overhead HV grids. BPLeNM is compared against other two well-verified network models from the relevant literature: the linear network model (LNM) and the optimal arrangement network model (OANM). The contribution of this paper is threefold. First, the general mathematical f

APA, Harvard, Vancouver, ISO, and other styles

2

Lazaropoulos, Athanasios G. "Review and Progress towards the Common Broadband Management of High-Voltage Transmission Grids: Model Expansion and Comparative Modal Analysis." ISRN Electronics 2012 (December 27, 2012): 1–18. http://dx.doi.org/10.5402/2012/935286.

Full text

Abstract:

The need of bridging the digital gap between underdeveloped/developed areas and promoting smart grid (SG) networks urges the deployment of broadband over power lines (BPL) systems and their further integration. The contribution of this paper is fourfold. First, based on the well-established hybrid model of (Lazaropoulos and Cottis 2009, 2010, Lazaropoulos, 2012) and the generic multidimensional network analysis tool presented in (Lazaropoulos 2012, Sartenaer 2004, Sartenaer and Delogne 2006, 2001) an exact multidimensional chain scattering matrix method, which is suitable for overhead high-vol

APA, Harvard, Vancouver, ISO, and other styles

3

Torner, Nuria, Maretva Baricot, Ana Martínez, et al. "Influenza sentinel surveillance network." Human Vaccines & Immunotherapeutics 9, no. 3 (2013): 671–74. http://dx.doi.org/10.4161/hv.23264.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Ilzarbe, Daniel, Inmaculada Baeza, Elena De la Serna, et al. "T138. ADOLESCENT ONSET OF PSYCHOSIS IMPACTS SEGREGATION OF CORTICO-SUBCORTICAL NETWORKS DURING DEVELOPMENT." Schizophrenia Bulletin 46, Supplement_1 (2020): S283. http://dx.doi.org/10.1093/schbul/sbaa029.698.

Full text

Abstract:

Abstract Background Functional connectivity (FC) during the resting-state is reduced in schizophrenia, especially within the Default Mode Network (DMN) (Dong 2018), and between the hippocampus, striatum and ventral tegmental area (VTA), which together conform a Midbrain Network (Gangadin 2019). Cross-sectional studies in adult samples have reported altered FC between dopamine synthesizing centers in midbrain and cortical areas in schizophrenia (Martino 2018). Conceptualizing schizophrenia as a neurodevelopmental disorder, we hypothesize that these changes may take place in early ages, prior to

APA, Harvard, Vancouver, ISO, and other styles

5

Bojovschi, Alexe, Thai Quoc, Huy Trung, Dung Quang, and Tu Le. "Environmental Effects on HV Dielectric Materials and Related Sensing Technologies." Applied Sciences 9, no. 5 (2019): 856. http://dx.doi.org/10.3390/app9050856.

Full text

Abstract:

The increase in recent power failures, with negative impacts on humans and the economy, has been largely attributed to environmental effects and the aging of the power network. These have been accelerated in the last years due to two main factors: an increased load on the power network and material degradation owing to the presence of environmental pollutants. These factors together with specific weather conditions create the incipient conditions for power network degradation. In this paper, a review of the influence of environmental factors on high-voltage (HV) materials and components is pro

APA, Harvard, Vancouver, ISO, and other styles

6

Kosorukov, Anton, Pavel Karpov, Nataliya Kutuzova, Svetlana Pashicheva, and Vasiliy Titkov. "SPD in illumination system of HV air insulated substation." E3S Web of Conferences 164 (2020): 03020. http://dx.doi.org/10.1051/e3sconf/202016403020.

Full text

Abstract:

The article discusses the distribution of the lightning current between communications of the object as the main aspect determining surge protective devices (SPDs) parameters for applying in substation’s low voltage networks. Wireframe model was designed to compute field-circuit model of earthing device (ED) and define the element potentials and currents using circuit analysis methods. Transients were calculated using operator method. Results of calculation and measurements of the lightning current’s distribution in ED and cables in illumination network of air insulated substation presented. E

APA, Harvard, Vancouver, ISO, and other styles

7

Ab. Wahab, N., Z. Mat Yasin, N. A. Salim, and N. F. A. Aziz. "Artificial neural network based technique for energy management prediction." Indonesian Journal of Electrical Engineering and Computer Science 17, no. 1 (2020): 94. http://dx.doi.org/10.11591/ijeecs.v17.i1.pp94-101.

Full text

Abstract:

<p>The energy management of electrical machine is significant to ensure efficient power consumption. Mismanagement of energy consumption could give impact on low efficiency of energy consumption that leads to power wastage. This paper presents analysis of power consumption and electricity costing of the electrical machineries and equipment in High Voltage (HV) and Electrical Machine (EM) Laboratories at Faculty of Electrical Engineering (FKE), Universiti Teknologi MARA (UiTM) Shah Alam, Selangor, Malaysia. The electrical data are collected using Fluke Meter 1750. Based on the analysis, i

APA, Harvard, Vancouver, ISO, and other styles

8

Shafiullah, G. M., Amanullah M. T. Oo, A. B. M. Shawkat Ali, and Alex Stojcevski. "Influences of Wind Energy Integration into the Distribution Network." Journal of Wind Energy 2013 (November 11, 2013): 1–21. http://dx.doi.org/10.1155/2013/903057.

Full text

Abstract:

Wind energy is one of the most promising renewable energy sources due to its availability and climate-friendly attributes. Large-scale integration of wind energy sources creates potential technical challenges due to the intermittent nature that needs to be investigated and mitigated as part of developing a sustainable power system for the future. Therefore, this study developed simulation models to investigate the potential challenges, in particular voltage fluctuations, zone substation, and distribution transformer loading, power flow characteristics, and harmonic emissions with the integrati

APA, Harvard, Vancouver, ISO, and other styles

9

Mingliang, Liu, Wang Keqi, Sun Laijun, and Zhang Jianfeng. "Fault Diagnosis Method of HV Circuit Breaker Based on Wavelets Neural Network." Open Automation and Control Systems Journal 7, no. 1 (2015): 126–34. http://dx.doi.org/10.2174/1874444301507010126.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Djurić, M., K. Zorić, and N. Jejina. "Neural-network-based approach for secondary arc recognition on HV overhead lines." European Transactions on Electrical Power 9, no. 5 (1999): 309–12. http://dx.doi.org/10.1002/etep.4450090505.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Mu, Lixiao, Xiaobing Xu, Zhanran Xia, et al. "Autonomous Analysis of Infrared Images for Condition Diagnosis of HV Cable Accessories." Energies 14, no. 14 (2021): 4316. http://dx.doi.org/10.3390/en14144316.

Full text

Abstract:

Infrared thermography has been used as a key means for the identification of overheating defects in power cable accessories. At present, analysis of thermal imaging pictures relies on human visual inspections, which is time-consuming and laborious and requires engineering expertise. In order to realize intelligent, autonomous recognition of infrared images taken from electrical equipment, previous studies reported preliminary work in preprocessing of infrared images and in the extraction of key feature parameters, which were then used to train neural networks. However, the key features require

APA, Harvard, Vancouver, ISO, and other styles

12

Takeuchi, Masato. "Bayesian network meta-analysis suggests a similar effectiveness between a monovalent and a pentavalent rotavirus vaccine." Human Vaccines & Immunotherapeutics 10, no. 5 (2014): 1421–24. http://dx.doi.org/10.4161/hv.28284.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Sirviö, Katja H., Mike Mekkanen, Kimmo Kauhaniemi, et al. "Accelerated Real-Time Simulations for Testing a Reactive Power Flow Controller in Long-Term Case Studies." Journal of Electrical and Computer Engineering 2020 (June 5, 2020): 1–17. http://dx.doi.org/10.1155/2020/8265373.

Full text

Abstract:

This paper presents the development of an accelerated real-time cosimulation and testing platform, especially for long-term simulations of power systems. The platform is planned to be utilized in the development and testing of active network management functions for microgrids and smart grids. Long-term simulations are needed in order to study, for example, the potential weekly, monthly, or yearly usage of distribution-network-connected distributed energy resources for different technical flexibility services. In order to test new algorithms in long-term study cases, real-time simulations or h

APA, Harvard, Vancouver, ISO, and other styles

14

Rodríguez-Olivares, Noé, José Cruz-Cruz, Alejandro Gómez-Hernández, et al. "Improvement of Ultrasonic Pulse Generator for Automatic Pipeline Inspection." Sensors 18, no. 9 (2018): 2950. http://dx.doi.org/10.3390/s18092950.

Full text

Abstract:

This paper presents the improvement of an ultrasonic pulse generator for a pipeline inspection gauge (PIG), which uses 64 transducers for inspecting distances up to 100 km with an axial resolution fixed at 3 mm and variable speeds between 0 and 2 m/s. An ultrasonic pulse generator is composed of a high-voltage (HV) MOSFETs, driver logic and an HV power supply. We used a DC-HV DC converter device as the HV power supply because it reduces the size of the ultrasound system considerably. However, pipeline geometry and inspection effects such as hammer and shock cause a variable pulse repetition fr

APA, Harvard, Vancouver, ISO, and other styles

15

Survilo, Josifs, and Antons Kutjuns. "Operation Modes of HV/MV Substations." Scientific Journal of Riga Technical University. Power and Electrical Engineering 25, no. 25 (2009): 81–86. http://dx.doi.org/10.2478/v10144-009-0018-y.

Full text

Abstract:

Operation Modes of HV/MV SubstationsA distribution network consists of high voltage grid, medium voltage grid, and low voltage grid. Medium voltage grid is connected to high voltage grid via substations with HV/MV transformers. The substation may contain one, mostly two but sometimes even more transformers. Out of reliability and expenditure considerations the two transformer option prevail over others mentioned. For two transformer substation, there may be made choice out of several operation modes: 1) two (small) transformers, with rated power each over 0.7 of maximum substation load, perman

APA, Harvard, Vancouver, ISO, and other styles

16

Pijarski, Paweł, and Piotr Kacejko. "Voltage Optimization in MV Network with Distributed Generation Using Power Consumption Control in Electrolysis Installations." Energies 14, no. 4 (2021): 993. http://dx.doi.org/10.3390/en14040993.

Full text

Abstract:

Connecting a large number of distributed sources to the medium and low voltage grid poses many problems. The most important of these are the voltage changes inside the network, what can be observed when the power flow from these sources towards the HV/MV (High Voltage/Medium Voltage) transformer station. In particular, if the power consumption in nodes of the MV network is small and the distance between the place of installation of the source and the substation is large, increases and changes in voltage may be dangerous for the insulation of the network and burdensome for the consumers connect

APA, Harvard, Vancouver, ISO, and other styles

17

Dimitropoulou, M., D. Pylarinos, K. Siderakis, E. Thalassinakis, and M. Danikas. "Comparative Investigation of Pollution Accumulation and Natural Cleaning for Different HV Insulators." Engineering, Technology & Applied Science Research 5, no. 2 (2015): 764–74. http://dx.doi.org/10.48084/etasr.545.

Full text

Abstract:

High Voltage insulators are scattered throughout any HV network and a single insulator fault may cause an excessive outage. Reliability is a key issue for electric power systems and fault-free performance of insulators greatly reflects on the reliability of the system. Environmental influence is rather important for the optimum selection of outdoor insulators and, therefore, field measurements provide valuable information. Utilities perform such measurements in order to decide upon the location/route of new HV installations (substations, lines etc) and also to optimize the selection, maintenan

APA, Harvard, Vancouver, ISO, and other styles

18

Steuer, Conor Ernst, Jeffrey M. Switchenko, Christopher C. Griffith, et al. "Institutional treatment volume and outcomes in salivary gland cancer." Journal of Clinical Oncology 35, no. 15_suppl (2017): 6082. http://dx.doi.org/10.1200/jco.2017.35.15_suppl.6082.

Full text

Abstract:

6082 Background: Salivary gland cancer (SGC) is a rare malignancy and has been understudied in the literature. Given the rarity of SGC, we sought to compare outcomes of SGC within high volume (HV) and low volume (LV) centers, utilizing the National Cancer Database (NCDB). Methods: The NCDB was queried from 2004 to 2014 for SGC using ICD-O-3 codes for the 4 most common histologies: (mucoepidermoid carcinoma (ME), adenoid cystic carcinoma (AdCC), acinic cell carcinoma(ACC), and adenocarcinoma NOS(A)) for consistency. The number of cases treated at each facility was calculated, and the threshold

APA, Harvard, Vancouver, ISO, and other styles

19

Pearlmutter, Barak A. "Fast Exact Multiplication by the Hessian." Neural Computation 6, no. 1 (1994): 147–60. http://dx.doi.org/10.1162/neco.1994.6.1.147.

Full text

Abstract:

Just storing the Hessian H (the matrix of second derivatives δ2E/δwiδwj of the error E with respect to each pair of weights) of a large neural network is difficult. Since a common use of a large matrix like H is to compute its product with various vectors, we derive a technique that directly calculates Hv, where v is an arbitrary vector. To calculate Hv, we first define a differential operator Rv{f(w)} = (δ/δr)f(w + rv)|r=0, note that Rv{▽w} = Hv and Rv{w} = v, and then apply Rv{·} to the equations used to compute ▽w. The result is an exact and numerically stable procedure for computing Hv, wh

APA, Harvard, Vancouver, ISO, and other styles

20

Tadesse, Melkie Getnet, Emil Loghin, Marius Pislaru, et al. "Prediction of the tactile comfort of fabrics from functional finishing parameters using fuzzy logic and artificial neural network models." Textile Research Journal 89, no. 19-20 (2019): 4083–94. http://dx.doi.org/10.1177/0040517519829008.

Full text

Abstract:

This paper aims to predict the hand values (HVs) and total hand values (THVs) of functional fabrics by applying the fuzzy logic model (FLM) and artificial neural network (ANN) model. Functional fabrics were evaluated by trained panels employing subjective evaluation scenarios. Firstly, the FLM was applied to predict the HV from finishing parameters; then, the FLM and ANN model were applied to predict the THV from the HV. The estimation of the FLM on the HV was efficient, as demonstrated by the root mean square error (RMSE) and relative mean percentage error (RMPE); low values were recorded, ex

APA, Harvard, Vancouver, ISO, and other styles

21

Pranandari, Resti, Misbah, Misbah,, and Deny Irawan. "IDENTIFICATION OF INTEFERENCE HV LINE PROTECTION IN PLGTU PT PJB GRESIK GENERATION UNIT USING METHOD RCFA AND FDT." INAJEEE Indonesian Journal of Electrical and Eletronics Engineering 4, no. 1 (2021): 22. http://dx.doi.org/10.26740/inajeee.v4n1.p22-28.

Full text

Abstract:

In the electricity generation business in Indonesia, power plants requiring to be reliable when operating and ready when needed due to network load requirements. It has been written in the performance target contract for each unit, therefore the protection system installed at the power plant must be well. The problem that occurs at the PLTGU PT PJB Gresik Generation Unit is a malfunction in the HV Line protection system that causes the generator unit to trip, thus causing questions regarding the cause of the problem that occurs. Therefore, the authors compile a thesis proposal with the title "

APA, Harvard, Vancouver, ISO, and other styles

22

Kacejko, Piotr, and Paweł Pijarski. "Optimal Voltage Control in MV Network with Distributed Generation." Energies 14, no. 2 (2021): 469. http://dx.doi.org/10.3390/en14020469.

Full text

Abstract:

The article presents the concept of voltage control in a medium-voltage network, using the classical control of a HV/MV (High Voltage/Medium Voltage) transformer and active participation of distributed generation sources. The proposed solution is based on the results of the optimization process. The objective function is considered as a single-criterion—the voltage quality indicator or value of power losses in the network, and optionally as two-criteria (voltage quality and losses combined, with appropriately selected weight factors). The analysis carried out for random selection of independen

APA, Harvard, Vancouver, ISO, and other styles

23

Stoddard, J., S. J. Gotts, M. A. Brotman, et al. "Aberrant intrinsic functional connectivity within and between corticostriatal and temporal–parietal networks in adults and youth with bipolar disorder." Psychological Medicine 46, no. 7 (2016): 1509–22. http://dx.doi.org/10.1017/s0033291716000143.

Full text

Abstract:

BackgroundMajor questions remain regarding the dysfunctional neural circuitry underlying the pathophysiology of bipolar disorder (BD) in both youths and adults. In both age groups, studies implicate abnormal intrinsic functional connectivity among prefrontal, limbic and striatal areas.MethodWe collected resting-state functional magnetic resonance imaging (fMRI) data from youths and adults (ages 10–50 years) with BD (n = 39) and healthy volunteers (HV; n = 78). We identified brain regions with aberrant intrinsic functional connectivity in BD by first comparing voxel-wise mean global connectivit

APA, Harvard, Vancouver, ISO, and other styles

24

Kolosok, Irina, Elena Korkina, and Alexander Tikhonov. "Application of FACTS devices for flexibility control of transmission networks." E3S Web of Conferences 209 (2020): 02016. http://dx.doi.org/10.1051/e3sconf/202020902016.

Full text

Abstract:

Maintenance of power balance at each time moment in every node and in the electric power system as a whole is a mandatory condition for supplying the electric power of required quality (frequency, voltage levels). Property of the system to be considered as its ability to control power balance is referred to as flexibility. Technologies for operating conditions control or systems services are an efficient means of regulating the flexibility of HV transmission networks in the cycle of on-line and anti-emergency control. Present-day FACTS of the second generation based on power electronics whose

APA, Harvard, Vancouver, ISO, and other styles

25

Coppola, Gianluca, Antonio Di Renzo, Emanuele Tinelli, et al. "Resting state connectivity between default mode network and insula encodes acute migraine headache." Cephalalgia 38, no. 5 (2017): 846–54. http://dx.doi.org/10.1177/0333102417715230.

Full text

Abstract:

Background Previous functional MRI studies have revealed that ongoing clinical pain in different chronic pain syndromes is directly correlated to the connectivity strength of the resting default mode network (DMN) with the insula. Here, we investigated seed-based resting state DMN-insula connectivity during acute migraine headaches. Methods Thirteen migraine without aura patients (MI) underwent 3 T MRI scans during the initial six hours of a spontaneous migraine attack, and were compared to a group of 19 healthy volunteers (HV). We evaluated headache intensity with a visual analogue scale and

APA, Harvard, Vancouver, ISO, and other styles

26

Zapletal, Pavel, Pavel Prokop, and Václav Dorazil. "The Regulation of Ventilation by Changing the Operation of the Main Fan and its Impact on the Face Worked Under the Main Haulage Level / Regulace Větrání Změnou Provozu Hlavního Ventilátoru A Její Dopad Na Podpatrově Dobývaný Porub." GeoScience Engineering 57, no. 2 (2011): 13–22. http://dx.doi.org/10.2478/v10205-011-0001-7.

Full text

Abstract:

Abstract The regulation of mine ventilation by changing the operation of the main fan (HV) has both positive and negative aspects. One of the positive aspects is that this regulation can be made directly on the mine surface without lowering into the mine, namely by turning the fan blades from the minimum to maximum position. This regulation can be performed either from the control room or directly at the fan. The utilization of this control method in the mine ventilation (the reducing or increasing of the depression of main fans) brings with also certain disadvantages. By the overall regulatio

APA, Harvard, Vancouver, ISO, and other styles

27

Vasconcelos, Angela de Jesus, Cibele Vieira Arão da Silva, Antonio Luciano Seabra Moreira, Maria Adrina Paixão de Sousa da Silva, and Otávio Fernandes Lima da Rocha. "Influence of thermal parameters on the dendritic arm spacing and the microhardness of Al-5.5wt.%Sn alloy directionally solidified." Rem: Revista Escola de Minas 67, no. 2 (2014): 173–79. http://dx.doi.org/10.1590/s0370-44672014000200007.

Full text

Abstract:

Al-Sn alloys are widely used in tribological applications. In this study, thermal, microstructural and microhardness (HV) analysis were carried out with an Al-5.5wt.%Sn alloy ingot produced by horizontal directional transient solidification. The main parameters analyzed include the growth rate (V L) and cooling rate (T R).These thermal parameters play a key role in the microstructural formation. The dendritic microstructure has been characterized by primary dendritic arm spacing (λ1) which was experimentally determined and correlated with V L, and T R. The behavior presented by the Al-5.5wt.%S

APA, Harvard, Vancouver, ISO, and other styles

28

Tsioumpri, Eleni, Bruce Stephen, and Stephen D. J. McArthur. "Weather Related Fault Prediction in Minimally Monitored Distribution Networks." Energies 14, no. 8 (2021): 2053. http://dx.doi.org/10.3390/en14082053.

Full text

Abstract:

Power distribution networks are increasingly challenged by ageing plant, environmental extremes and previously unforeseen operational factors. The combination of high loading and weather conditions is responsible for large numbers of recurring faults in legacy plants which have an impact on service quality. Owing to their scale and dispersed nature, it is prohibitively expensive to intensively monitor distribution networks to capture the electrical context these disruptions occur in, making it difficult to forestall recurring faults. In this paper, localised weather data are shown to support f

APA, Harvard, Vancouver, ISO, and other styles

29

RAVADANEGH, SAJAD NAJAFI, ARASH VAHIDNIA, and HOJAT HATAMI. "ON OPTIMAL DESIGN AND EXPANSION OF ELECTRICAL POWER DISTRIBUTION SYSTEMS." Journal of Circuits, Systems and Computers 19, no. 01 (2010): 45–58. http://dx.doi.org/10.1142/s0218126610005962.

Full text

Abstract:

Optimal planning of large-scale distribution networks is a multiobjective combinatorial optimization problem with many complexities. This paper proposes the application of improved genetic algorithm (GA) for the optimal design of large-scale distribution systems in order to provide optimal sizing and locating of the high voltage (HV) substations and medium voltage (MV) feeders routing, using their corresponding fixed and variable costs associated with operational and optimization constraints. The novel approach presented in the paper, solves hard satisfactory optimization problems with differe

APA, Harvard, Vancouver, ISO, and other styles

30

Miresan, Paul, Marius Neag, Marina Topa, Istvan Kovacs, and Laurentiu Varzaru. "Multipurpose Drivers for MEMS Devices Based on a Single ASIC Implemented in a Low-Cost HV CMOS Process without a Triple Well." Journal of Sensors 2021 (March 30, 2021): 1–22. http://dx.doi.org/10.1155/2021/8818917.

Full text

Abstract:

This paper presents a novel topology for multipurpose drivers for MEMS sensors and actuators, suitable for integration in low-cost high-voltage (HV) CMOS processes, without a triple well. The driver output voltage, V MEMS , can be programmed over a wide, symmetrical range of positive and negative values, with the maximum output voltage being limited only by the maximum drain-source voltage that the HV transistors can handle. The driver is also able to short its output to the ground line and to leave it floating. It comprises generators for large positive and negative voltages followed by an LD

APA, Harvard, Vancouver, ISO, and other styles

31

Cabrales, Pedro, Amy G. Tsai, and Marcos Intaglietta. "Microvascular pressure and functional capillary density in extreme hemodilution with low- and high-viscosity dextran and a low-viscosity Hb-based O2 carrier." American Journal of Physiology-Heart and Circulatory Physiology 287, no. 1 (2004): H363—H373. http://dx.doi.org/10.1152/ajpheart.01039.2003.

Full text

Abstract:

Blood losses are usually corrected initially by the restitution of volume with plasma expanders and subsequently by the restoration of oxygen-carrying capacity using either a blood transfusion or possibly, in the near future, oxygen-carrying plasma expanders. The present study was carried out to test the hypothesis that high-plasma viscosity hemodilution maintains perfused functional capillary density (FCD) by preserving capillary pressure. Microvascular pressure responses to extreme hemodilution with low- (LV) and high-viscosity (HV) plasma expanders and an exchange transfusion with a polymer

APA, Harvard, Vancouver, ISO, and other styles

32

Zhao, Ming Xin, Yang Li, Hai Chen, Wei Liu, and Pan Zhang. "Time-Varying Characteristic Based Load Forecasting Method for Distribution Network with DGs." Applied Mechanics and Materials 448-453 (October 2013): 2434–38. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.2434.

Full text

Abstract:

Middle-term and long-term load forecasting is important for planning of distribution network. With DG (distributed generation) integrated into network, the net load demand of HV/MV transformers become more complicated, load forecasting encounters greater challenge than ever. Uncertainty of wind and solar power has greatly influenced the load characteristics. A new load forecasting method for distribution network with DGs is proposed in this paper, which concerns time-varying characteristic of DG output power. Firstly, we get the conventional spatial load forecasting results. Then, using Monte

APA, Harvard, Vancouver, ISO, and other styles

33

Ying, Jianhua, Yining Xu, Bíró István, and Feng Ren. "Adjusted Indirect and Mixed Comparisons of Conservative Treatments for Hallux Valgus: A Systematic Review and Network Meta-Analysis." International Journal of Environmental Research and Public Health 18, no. 7 (2021): 3841. http://dx.doi.org/10.3390/ijerph18073841.

Full text

Abstract:

Background: Hallux valgus (HV) deformity is a common, potentially debilitating deformity. And evidence with high-quality for the conservative treatments of HV deformity is still required.; AIMS: To compare the effects of different conservative treatments for hallux valgus deformity by using the method of network meta-analysis.; Study Design: A systematic review and network meta-analysis of randomized controlled trials identified by searching PubMed, EMBASE, MEDLINE, OVID, and CINAHL. The included studies should have the characteristics that: (1) participants with hallux valgus deformity of any

APA, Harvard, Vancouver, ISO, and other styles

34

Šebek, M., L. Falat, F. Kováč, I. Petryshynets, P. Horňak, and V. Girman. "The Effects of Laser Surface Hardening on Microstructural Characteristics and Wear Resistance of AISI H11 Hot Work Tool Steel." Archives of Metallurgy and Materials 62, no. 3 (2017): 1721–26. http://dx.doi.org/10.1515/amm-2017-0262.

Full text

Abstract:

AbstractThe present study deals with the effects of laser surface treatment on microstructure evolution and wear resistance of AISI H11 hot work tool steel in quenched and tempered condition. The most upper laser-affected zone is characterized by re-melted microstructure consisting of dendrite cells with fresh non-tempered martensite, retained austenite and inter-dendritic carbidic network. The subsolidus microstructure just beneath the re-melted zone represents the most laser surface hardened zone consisting of fresh non-tempered martensite with fine and coarse carbides as a result of overhea

APA, Harvard, Vancouver, ISO, and other styles

35

Nikolovski, Srete, Dragan Mlakić, and Emir Alibašić. "Thermal and Arc Flash Analysis of Electric Motor Drives in Distribution Networks." International journal of electrical and computer engineering systems 8, no. 2 (2017): 47–57. http://dx.doi.org/10.32985/ijeces.8.2.2.

Full text

Abstract:

The paper presents thermal analysis and arc flash analysis taking care of protection relays coordination settings for electric motor drives connected to the electrical network. Power flow analysis is performed to check if there are any voltage and loading violation conditions in the system. Fault analysis is performed to check the short circuit values and compute arc flash energy dissipated at industrial busbars to eliminate damage to electrical equipment and electrical shocks and hazard to personnel. Computers enable the use of smart algorithms used by electrical engineers in providing accura

APA, Harvard, Vancouver, ISO, and other styles

36

KARTHIKEYAN, B., S. GOPAL, and M. VIMALA. "A COMPOSITE PROBABILISTIC NEURAL NETWORK SYSTEM FOR PD PATTERN RECOGNITION." International Journal of Information Acquisition 02, no. 02 (2005): 149–65. http://dx.doi.org/10.1142/s0219878905000520.

Full text

Abstract:

Partial discharge patterns are an important tool for diagnosis of HV insulation systems. Skilled humans can identify the possible insulation defects in various representations of partial discharge (PD) data. One of the most widely used representation is phase resolved PD (PRPD) patterns. This paper describes a method for the automated recognition of PRPD patterns using a novel composite neural network system for the actual classification task. This paper elucidates the possible methods of extracting relevant features from the PRPD data in a knowledge based way i.e. according to physical proper

APA, Harvard, Vancouver, ISO, and other styles

37

Hou, Guangning, Lijie Cao, Chaomin Zhang, Jinan Xia, and Guishun Li. "Improving mechanical strength of La2O3 and ZrO2 co-doped silicate glasses for touch screen." Functional Materials Letters 11, no. 02 (2018): 1850026. http://dx.doi.org/10.1142/s1793604718500261.

Full text

Abstract:

La2O3 and ZrO2 co-doped silicate glasses were fabricated using melt-quenching method. The network structure, Vickers hardness and elastic modulus of the glasses were measured to investigate their mechanical properties. Our results indicated that the prepared samples exhibited high strength network structures with excellent mechanical performance. The Vickers hardness exceeded 858[Formula: see text]HV, and the elastic modulus reaches 100[Formula: see text]GPa. They increased approximate 37% and 18.6%, respectively, more than the most hardness and modulus reported for this type of glasses, while

APA, Harvard, Vancouver, ISO, and other styles

38

Montanari, Gian Carlo, Peter H. F. Morshuis, Mingyu Zhou, et al. "Criteria influencing the selection and design of HV and UHV DC cables in new network applications." High Voltage 3, no. 2 (2018): 90–95. http://dx.doi.org/10.1049/hve.2017.0098.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Souza Neto, J. M. R. de, E. C. T. de Macedo, J. S. da Rocha Neto, E. G. da Costa, S. A. Bhatti, and I. A. Glover. "Partial Discharge Location using Unsynchronized Radiometer Network for Condition Monitoring in HV Substations - A Proposed Approach." Journal of Physics: Conference Series 364 (May 28, 2012): 012053. http://dx.doi.org/10.1088/1742-6596/364/1/012053.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Kruk, Ryan, M. Christopher Fuller, Alexander S. Komarov, Dustin Isleifson, and Ian Jeffrey. "Proof of Concept for Sea Ice Stage of Development Classification Using Deep Learning." Remote Sensing 12, no. 15 (2020): 2486. http://dx.doi.org/10.3390/rs12152486.

Full text

Abstract:

Accurate maps of ice concentration and ice type are needed to address increased interest in commercial marine transportation through the Arctic. RADARSAT-2 SAR imagery is the primary source of data used by expert ice analysts at the Canadian Ice Service (CIS) to produce sea ice maps over the Canadian territory. This study serves as a proof of concept that neural networks can be used to accurately predict ice type from SAR data. Datasets of SAR images served as inputs, and CIS ice charts served as labelled outputs to train a neural network to classify sea ice type. Our results show that DenseNe

APA, Harvard, Vancouver, ISO, and other styles

41

Wang, W., Y. Cai, Y. B. Zhang, et al. "A 3 W High-Voltage Single-Chip Green Light-Emitting Diode with Multiple-Cells Network." Journal of Nanomaterials 2015 (2015): 1–4. http://dx.doi.org/10.1155/2015/248191.

Full text

Abstract:

A parallel and series network structure was introduced into the design of the high-voltage single-chip (HV-SC) light-emitting diode to inhibit the effect of current crowding and to improve the yield. Using such a design, a6.6×5 mm2large area LED chip of 24 parallel stages was demonstrated with 3 W light output power (LOP) at the current of 500 mA. The forward voltage was measured to be 83 V with the same current injection, corresponding to 3.5 V for a single stage. The LED chip’s average thermal resistance was identified to be 0.28 K/W by using infrared thermography analysis.

APA, Harvard, Vancouver, ISO, and other styles

42

Grzanic, Flammini, and Prettico. "Distribution Network Model Platform: A First Case Study." Energies 12, no. 21 (2019): 4079. http://dx.doi.org/10.3390/en12214079.

Full text

Abstract:

Decarbonisation policies have recently seen an uncontrolled increase in local electricity production from renewable energy sources (RES) at distribution level. As a consequence, bidirectional power flows might cause high voltage/ medium voltage (HV/MV) transformers to overload. Additionally, not-well-planned installation of electric vehicle (EV) charging stations could provoke voltage deviations and cables overloading during peak times. To ensure secure and reliable distribution network operations, technology integration requires careful analysis which is based on realistic distribution grid m

APA, Harvard, Vancouver, ISO, and other styles

43

Fakhri, Eyman, Salvy Bourguet, Jérôme Thiébot, Mohamed Machmoum, and Hamid Gualous. "Optimization of the electrical connection topology of a tidal farm network." E3S Web of Conferences 191 (2020): 04002. http://dx.doi.org/10.1051/e3sconf/202019104002.

Full text

Abstract:

This article presents an approach to optimize the electrical connection topology of tidal energy converters in a tidal farm. The methodology is based on a genetic algorithm (GA). The main purpose is to present a technique of coding to find the best electrical connection topology of the tidal farm network. The optimization model takes into account the energy loss in the submarine cables. The model gives as its output the optimal number of turbine clusters connected to each offshore substation, the number of turbines in each cluster, the cross-section of MV and HV cables, the connection design f

APA, Harvard, Vancouver, ISO, and other styles

44

Iyyappan, M., S. S. Ramakrishnan, and K. Srinivasa Raju. "Study of Discrimination Between Plantation and Dense Scrub Based on Backscattering Behavior of C Band SAR Data." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-8 (November 28, 2014): 755–60. http://dx.doi.org/10.5194/isprsarchives-xl-8-755-2014.

Full text

Abstract:

The study about on landuse and landcover classification using multi polarization and multi temporal C-band Synthetic Aperture Radar (SAR) data of recently launched multi-mode of RISAT-1 (Radar Imaging Satellite) by Indian Space Research Organization (ISRO) and European satellite, Envisat ASAR data. The backscattering coefficient were extracted for various land features from Cband SAR data. The training sample collecting from satellite optical imagery of study and field visit for verification. The training samples are used for the supervised classification technique of maximum Likelihood (ML) a

APA, Harvard, Vancouver, ISO, and other styles

45

Jiao, Changzhe, Xinlin Wang, Shuiping Gou, et al. "Self-Paced Convolutional Neural Network for PolSAR Images Classification." Remote Sensing 11, no. 4 (2019): 424. http://dx.doi.org/10.3390/rs11040424.

Full text

Abstract:

Fully polarimetric synthetic aperture radar (PolSAR) can transmit and receive electromagnetic energy on four polarization channels (HH, HV, VH, VV). The data acquired from four channels have both similarities and complementarities. Utilizing the information between the four channels can considerably improve the performance of PolSAR image classification. Convolutional neural network can be used to extract the channel-spatial features of PolSAR images. Self-paced learning has been demonstrated to be instrumental in enhancing the learning robustness of convolutional neural network. In this paper

APA, Harvard, Vancouver, ISO, and other styles

46

Baghel, Suman, and Sanjeev Jarariya. "Review on the SFCL Control Techniques in grid System." SMART MOVES JOURNAL IJOSCIENCE 7, no. 1 (2021): 45–48. http://dx.doi.org/10.24113/ijoscience.v7i1.348.

Full text

Abstract:

In this paper, the authors present a comparative study of inductive and resistive superconducting residual current limiters (SFCLs) from the perspective of current limiting and transient stability of the power supply system. Different types of SFCL can be used to reduce the magnitude of the fault current in a power system. The two most commonly used types are the resistive type (rSFCL) and the inductive type (iSFCL). The study aims here to analyze the performance of SFCL using various switching algorithms when a fault occurs in a simple high voltage (HV) network.

APA, Harvard, Vancouver, ISO, and other styles

47

Nurbanasari, Meilinda, Panos Tsakiropoulos, and Eric J. Palmiere. "The Breakdown of Carbide Network in a H23 Tool Steel by Hot Axisymmetric Compression." Advanced Materials Research 1043 (October 2014): 149–53. http://dx.doi.org/10.4028/www.scientific.net/amr.1043.149.

Full text

Abstract:

The effects of hot axisymmetric compression to break down the primary carbide network of the H23 tool steels were studied. This current study only focused on one strain rate of 0.01 s-1. The samples were deformed at 3 different temperatures (1000, 1050 and 1100 °C) with solutioning temperatures 1100 and 1250 °C, respectively. Afterwards, the samples were cooled by water quenching. The techniques used in this current study for investigation were the optical and electron microscopes and Vickers hardness test. The results show that hot axisymmetric compression had broken down the primary carbide

APA, Harvard, Vancouver, ISO, and other styles

48

Abdullah, A. Z., M. Isa, M. N. K. H. Rohani, H. A. Hamid, M. H. Amlus, and N. Azizan. "Modelling and simulation of online partial discharge measurement for medium voltage power cable." Bulletin of Electrical Engineering and Informatics 9, no. 2 (2020): 427–35. http://dx.doi.org/10.11591/eei.v9i2.2076.

Full text

Abstract:

This paper presents the modelling of the online partial discharge (PD) measurement of the medium voltage (MV) power cable. Recently, PD monitoring trends are rapidly increasing due to high demand on reliable systems. Degradation are mainly due to the presence of PD in the high voltage power equipment used. PD measurement is therefore a highly recommended task to early detection of the degradation insulation for high voltage (HV) equipment in order to avoid breakdowns. Real network modelling is necessary to improvise system design in order to find the efficiency in a real power system network.

APA, Harvard, Vancouver, ISO, and other styles

49

Taylor, Allison, Kimberley Doucette, Bryan Chan, Xiaoyang Ma, Jaeil Ahn, and Catherine Lai. "Impact of Treatment Facility Chracteristics on Patient (Pt) Outcomes in Acute Myeloid Leukemia (AML) Using Data from the National Cancer Database (NCDB)." Blood 136, Supplement 1 (2020): 22. http://dx.doi.org/10.1182/blood-2020-139034.

Full text

Abstract:

Introduction The literature suggests a widespread reduction in the availability and accessibility of newer treatment options among marginalized groups in AML. Studies from large national databases point to lower socio-economic status, Hispanic and African American race, Medicare or no insurance, being unmarried, treatment at non-academic centers, and rural residence as negatively impacting overall survival (OS) and rates of chemotherapy utilization in AML patients (Patel et al. 2015, Jaco et al. 2017, Bhatt et al. 2018, Master et al. 2016). We hypothesized that facility affiliation and pt volu

APA, Harvard, Vancouver, ISO, and other styles

50

Mahmoudi, Morad, Abdellah El Barkany, and Ahmed El Khalfi. "Toward an Integrated Approach of HV and MV Circuit-Breakers Optimization Maintenance Planning and Reliability Assessment: A Case Study." International Journal of Engineering Research in Africa 29 (March 2017): 133–53. http://dx.doi.org/10.4028/www.scientific.net/jera.29.133.

Full text

Abstract:

This paper investigates technical and organizational tools to improve maintenance planning performances. Indeed, maintaining a high level of reliability and availability of a Medium Voltage electrical network protection system such as the Medium Voltage and High Voltage circuit-breaker and its numerical protection relay at a low operating expenses cost is one of the most critical and challenging tasks for MV electrical distribution network operators. This work has mainly two goals. Firstly, to propose an operating expenses budget function that evaluates the Planned Scheduled Preventive Mainten

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!