46 research outputs found
Ethno-cultural particularity of English, French and Russian phrasiological units with components of names of domestic animals
No full textThe article reads about ethno-cultural particularity of English, French and Russian
phraseological units (P.U.) with components of the names of domestic animals:
«horse», «cow», «ass» on the basis of sources of cultural interpretation. The
author of the article treats archetypes, mythologems, ritual forms of national
culture, religion, literature, history. The emphasis is centred on the fact that ethnocultural particularity of P.U. with components of the names of domestic animals
is caused by stereotype, symbolic character and patterning of their figurative basis.
The following assertions are substantiated: 1) the figurative basis of English P.U.
contains stereotyped representations of arrogant behavior of a person’s senseless
activity who poses as the other person than he is in reality; of touch with Scottish
realia and literature; 2) the figurative basis of French P.U. contains patterned and
stereotyped representations of a person who works by the sweat of his brow,
of the interaction of man and a horse, of a bad French, of a drunkard, a silly
man who is fond of bombastic speech, of a cruel man; 3) the figurative basis of
Russian P.U. contains stereotyped representations of a ridiculously dressed person,
a pattern of human obstinacy; of touch with Russian peasant’s way of life.
The conclusion is made that in these three languages universal meanings are set
expressions with the components of «horse» (Trojan Horse, carthorse) and «cow»
(milk cow), and that the comparative analysis of P.U. demonstrates difference
in linguistic pictures of the world and sheds light on ethnic logi
From Cultural Industries to Entertainment and Creative Industries. The Boundaries of the Cultural Field
No full textThis article analyzes the current trend towards dilution of the concept of «cultural industries» and the increasing usage of terms such as «entertainment industries», «leisure industries» or even «creative industries». We review recent specialized literature, identify overlapping between the above terms and conclude that this change is a new turning point in the concept of culture, closely associated with new spaces and times for its enjoyment, with the technological evolution of cultural products, changes in the ownership of their suppliers as well as with the shifting roles of author, actor and spectator. To understand this change, we identify and explain three factors: 1) from the
strong, closed materiality and textuality of the classic cultural product to the malleability and convertibility permitted by new technologies; 2) from an essentially contemplative, reverent cultural experience to participant experimentation and play; 3) from a desire for permanence and intensity to constitutive contingency and super ficiality. We conclude by suggesting wider implications that go the scope of this work: the melting pot that blurs the boundaries between culture and entertainment, which undermines the autonomy of the disputed cultural «field» situated between work and leisure (more pleasant than the first, more demanding than the second), and which also erases the boundaries between cultural entertainment and work (a merged environment of «otium and negotium»,«homo ludens» and «homo laborans
GIT1 protects against breast cancer growth through negative regulation of Notch
No full textFunding Information: The authors thank Dr. Urban Lendahl for input, discussions, and provision of Notch plasmids, Dr. Serhiy Souchelnytskyi for provision of the 184A1 cells, Dr. Helena Karlström for provision of Notch plasmids, and Dr. Mandy Meijer, Dr. Gonçalo Castelo-Branco, and Dr. Arne Östman for helpful discussions. This study was supported by the Swedish Research Council (grants 2013-3189, 2017-00815, and 2021-03108 to P.U.), the Swedish Cancer Society (grants CAN 2016-801, 19 0544 Pj, and 19 0545 Us to P.U. and CAN 2015-0793 to J.I.J.), the Swedish Childhood Cancer Foundation (grant PR2018-0123 and PR2020-0124 to P.U.), the Swedish Brain Foundation (grants FO2020-0199 and FO2021-0230 to P.U.), the Swedish Strategic Foundation (MultiBIO 2010 to P.U. and NNBCR 2015 to J.I.J.), the Knut and Alice Wallenberg Foundation (grants CLICK and Research Fellow to P.U.), the Sigrid Jusélius Foundation (to L.L. and C.S.), the K. Albin Johansson Foundation (to K.K.), and the Cancer Research Foundations of Radiumhemmet (to P.U. and J.I.J.). C.S. acknowledges the financial support from the Jane and Aatos Erkko Foundation, the Liv of Hälsa Foundation, the Academy of Finland (309373), and the Cancer Society of Finland. Publisher Copyright: © 2022, The Author(s).Hyperactive Notch signalling is frequently observed in breast cancer and correlates with poor prognosis. However, relatively few mutations in the core Notch signalling pathway have been identified in breast cancer, suggesting that as yet unknown mechanisms increase Notch activity. Here we show that increased expression levels of GIT1 correlate with high relapse-free survival in oestrogen receptor-negative (ER(-)) breast cancer patients and that GIT1 mediates negative regulation of Notch. GIT1 knockdown in ER(-) breast tumour cells increased signalling downstream of Notch and activity of aldehyde dehydrogenase, a predictor of poor clinical outcome. GIT1 interacts with the Notch intracellular domain (ICD) and influences signalling by inhibiting the cytoplasm-to-nucleus transport of the Notch ICD. In xenograft experiments, overexpression of GIT1 in ER(-) cells prevented or reduced Notch-driven tumour formation. These results identify GIT1 as a modulator of Notch signalling and a guardian against breast cancer growth
Response of low voltage networks with high penetration of photovoltaic systems to transmission network faults
No full textThe installed capacity of photovoltaic (PV) systems connected to low voltage (LV) networks in Germany has increased to more than 25 GW. Current grid codes still mandate these PV systems to disconnect in case of voltage dips below 0.8 p.u. The resulting response of LV distribution systems with high penetration of PV systems to faults in the transmission network is investigated for an integrated power system model that comprises all relevant voltage levels. Sensitivity studies with respect to the pre-fault power flow, various steady state and fault ride-through (FRT) control modes were performed. Our simulations for a realistic 2022 scenario show that a lack of FRT capability can cause the distribution system load to increase by 35-70 % of its peak value. It was found that for under-excited operation of PV systems prior to the fault, an overvoltage can occur post-fault at some busbars in the distribution system. Therefore, we conclude that new LV-connected PV systems and other DG installations should be requested to perform FRT.Electrical Sustainable EnergyElectrical Engineering, Mathematics and Computer Scienc
TRANSMISSION NETWORK LOSS MINIMIZATION USING ARTIFICIAL NEURAL NETWORK AND FACTS DEVICES
No full textAbstract: Due to the increase in voltage instability problem and power losses in Nigeria grid are a serious operational challenger facing electricity supply utilities. The Nigeria 330Kv power grid was used as a case study for the evaluation of the proposed power loss reduction system a simulink model of the Nigeria 330Kv transmission system with the proposed neural network controlled TCSC integrated was created in the MATLAB/SIMULINK programming environment. Genetic algorithm was used for optimal placement of the FACTS device in the MATLAB/SIMULINK model of the Nigeria 330Kv transmission system .The proposed approach has been implemented on IEEE 67 bus system, 39 load points, 111 transmission lines and 14 generators. The simulation and evaluation were carried out with TCSC installed with each variation of the load at the bus; load flow is run to determine total system losses. Findings showed that the proposed neural network controlled TCSC to Achieved an average active power loss reduction of 13.11378 (p.u) and average reactive power loss reduction of 78.16378 (p.u). This shows that TCSC reduced both active and reactive power loss in the system.
Keywords: TCSC, FACTS Devices, Neural Network, GA, Modeling and training, Transmission Grid, Classification of FACTS Devices.
Title: TRANSMISSION NETWORK LOSS MINIMIZATION USING ARTIFICIAL NEURAL NETWORK AND FACTS DEVICES
Author: Chukwuagu .I.M, Aneke. E. C
International Journal of Novel Research in Electrical and Mechanical Engineering
ISSN 2394-9678
Vol. 10, Issue 1, September 2022 - August 2023
Page No: 9-27
Novelty Journals
Website: www.noveltyjournals.com
Published Date: 04-November-2022
DOI: https://doi.org/10.5281/zenodo.7288912
Paper Download Link (Source)
https://www.noveltyjournals.com/upload/paper/TRANSMISSION%20NETWORK-04112022-4.pdfInternational Journal of Novel Research in Electrical and Mechanical Engineering, ISSN 2394-9678, Novelty Journals, Website: www.noveltyjournals.co
Investigation of Free Moving Particles on the Breakdown Voltage in Gas Insulated Switchgears (GIS) under Different Electrical Stresses
No full textAlthough the Gas Insulated Switchgear (GIS) reliability has been proven for more than forty years, some failures have been reported. CIGRE report 25/23-01 mentioned the failures caused by free particles and foreign bodies represent 20% of the total distribution of defect type in GIS failures. The presence of these particles results in a local field concentration which influences the insulation medium and can result in breakdown. Under AC voltage, particles can start “moving" or "jumping" into higher electric field regions. Breakdown may occur if stressing overvoltages, e.g. AC + VFTO, DC + VFTO and AC + LI would occur at the particle get close or attached to the HV conductor In thesis the influence of free moving particles on the breakdown strength in GIS under different voltage stresses are investigated. For this purpose Different GIS test setups have been used. Particles lengths ranging between 2 to 30 mm have been investigated at 4bar gas pressure. The results have shown that the particles size of 5 mm and longer can start jumping under AC voltage, while shorter particles were tend to show only a little movements The visual observations have shown that the particles were moving towards the HV electrode and solid insulators inside the GIS. Therefore the particles as small as 5 mm are considered dangerous to the insulation system under continuous operating AC voltage. A breakdown area have been distinguished based on the particles length under AC + LI. the particles of 15 mm length and longer are critical under AC + LI. The investigation under AC + VFTO has been performed with the maximum peak 2.1 p.u. At this level, the breakdown has been observed with the 30 mm particle at 90% of the distance gap. During the experiments partial discharge measurements have been performed by means of: \u95 the conventional method (IEC 60270) \u95 the UHF method \u95 the acoustic method The PD results have shown that some defects can cause a PD level higher than 10pC. Such PD level gives a good possibility to detect a defect.High Voltage Technology and Asset ManagementElectrical Power EngineeringElectrical Engineering, Mathematics and Computer Scienc
Parental and sexual conflicts over the Peg3 imprinted domain
No full text© 2016 The Author(s). In the current study, the imprinting control region of the mouse Peg3 domain was deleted to test its functional impact on animal growth and survival. The paternal transmission of the deletion resulted in complete abolition of the transcription of two paternally expressed genes, Peg3 and Usp29, causing the reduced body weight of the pups. In contrast, the maternal transmission resulted in the unexpected transcriptional up-regulation of the remaining paternal allele of both Peg3 and Usp29, causing the increased body weight and survival rates. Thus, the imprinted maternal allele of the ICR may be a suppressor antagonistic to the active paternal allele of the ICR, suggesting a potential intralocus allelic conflict. The opposite outcomes between the two transmissions also justify the functional compromise that the maternal allele has become epigenetically repressed rather than genetically deleted during mammalian evolution. The mice homozygous for the deletion develop normally but with a skewed sex ratio, one male per litter, revealing its sex-biased effect. Overall, the Peg3 locus may have evolved to an imprinted domain to cope with both parental and sexual conflicts driven by its growth-stimulating paternal versus growth-suppressing maternal alleles
Connection of large-scale wind power generation to the Dutch electrical power system and its impact on dynamic behaviour
No full textInstalled wind power world wide is increasing rapidly. The increase in wind power in the European electricity grid is expected to have its impact on the system behaviour. A European study, European Wind Integration Study (EWIS), was thus set up to study the impact of wind power. This thesis was carried out in parallel with EWIS and overlaps at some points. The impact of large scale wind power integration on transient stability in the Dutch grid was studied. For the simulations the Dutch part of the UCTE interconnected system load flow model was used. Speed controls and excitation controls were added to the thermal power plants, and at the interconnections equivalent generators were placed to represent the external grids. Nine connection points were defined and all installed wind power was aggregated in wind parks at those nine connection points. The distribution of wind power amongst turbine type and location was determined to get a realistic distribution. Several simulation cases were then taken into account, first a comparison was made between the dynamic grid behaviour of the year 2008 and the year 2015, when no changes in the current regulations regarding fault-ride-through capabilities are made, i.e. all wind power will be disconnected from the grid on a voltage drop below 0.8 p.u.. Secondly a comparison of the dynamic grid behaviour of 2008 and the year 2015 was made, with no wind included in this case. As a third case, different connection requirements were applied, so the wind turbines had to stay connected to the grid in case of a fault. These `new' regulations were applied to the 2015 grid situation. From the calculations it followed that the 2015 grid without wind power installed shows a less stable behaviour than the 2008 grid. In the 2008 situation a short circuit in the centre of the grid may cause the disconnection of up to 1258 MW of wind power. For the 2015 situation this can become over 5000 MW. A disconnection of such a large amount of wind power is leading to voltage oscillations and oscillations at interconnection power flows. These oscillations however damp out fast and do not increase in amplitude. The voltage recovery time increases enormously between these years. Applying new regulations, where all variable speed wind turbines will have to stay connected to the grid during a short circuit, reduces the oscillations. As can be concluded from the calculations, a rather stable grid situation is created. This is mainly caused by the fact that the external grids are not taken into account, but modelled as an equivalent. When a larger part of the surrounding UCTE grid will be implemented the results will be different and most probably show a less stable behaviour. This thesis also looked into the large differences in wind power penetration in Europe. Several countries have a leading position in installed wind power, whilst a country like the Netherlands stays behind. Governments in Germany and Spain are very supportive and show a stable position towards renewable energy. Furthermore social acceptance is high in Germany and Spain, and both have a large local wind turbine production. These are important explaining factors for the differences in local selection environment and increase in installed wind power.Electrical Engineering, Mathematics and Computer Scienc
Genome wide high density SNP-based linkage analysis of childhood absence epilepsy identifies a susceptibility locus on chromosome 3p23-p14
No full textChildhood absence epilepsy (CAE) is an idiopathic generalised epilepsy (IGE) characterised by typical absence seizures manifested by transitory loss of awareness with 2.5–4 Hz spike-wave complexes on ictal EEG. A genetic component to the aetiology is well recognised but the mechanism of inheritance and the genes involved are yet to be fully established.
A genome wide single nucleotide polymorphism (SNP)-based high density linkage scan was carried out using 41 nuclear pedigrees with at least two affected members. Multipoint parametric and non-parametric linkage analyses were performed using MERLIN 1.1.1 and a susceptibility locus was identified on chromosome 3p23-p14 (Zmean = 3.9, p < 0.0001; HLOD = 3.3, α = 0.7). The linked region harbours the functional candidate genes TRAK1 and CACNA2D2. Fine-mapping using a tagSNP approach demonstrated disease association with variants in TRAK1
Notice of Retraction Cuckoo search algorithm approach for optimal placement and sizing of distribution generation in radial distribution networks
No full textNotice of Retraction-----------------------------------------------------------------------After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IAES's Publication Principles.We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.The presenting author of this paper has the option to appeal this decision by contacting ijece@iaesjournal.com.-----------------------------------------------------------------------Radial distribution networks (RDNs) often experience power loss due to improper distribution generation (DG) allocation. Strategic DG placement can reduce power loss, minimize costs, and improve voltage profiles and stability. This research optimizes DG placement and sizing in RDNs using the cuckoo search algorithm (CSA). The objective function considers losses across all network branches, and CSA identifies optimal DG locations and sizes. Tested on IEEE 33-bus, IEEE 69-bus, and Nigeria's Imalefalafia 32-bus RDN, the Cuckoo Search technique results in optimal DG locations at buses 6, 50, and 18 with corresponding sizes of 2.4576, 1.852, and 2.718 MW, respectively. Voltage improvements are 0.9509, 0.9817, and 0.9821 p.u, while total active and reactive power losses for IEEE 33-bus are reduced by 49.03% and 45.00%, and for IEEE 69-bus by 63.67% and 61.14%. The CSA approach significantly enhances voltage profiles and reduces power losses in these networks
