To see the other types of publications on this topic, follow the link: State impulse.
Journal articles on the topic 'State impulse'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'State impulse.'
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
SYAKUR, ABDUL, OKRISAL REKA NUGRAHA, FADILLA DWI PUTRI RIYANTO, and RAFIF DAFFA ARIBAWA PUTRA. "Desain Generator Tegangan Tinggi Impuls 31,4 kV menggunakan Ignition Coil." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 11, no. 2 (2023): 494. http://dx.doi.org/10.26760/elkomika.v11i2.494.
Full textAbstract:
ABSTRAKPeralatan pembangkitan tegangan tinggi yang ada sejauh ini masih memerlukan perangkat-perangkat besar dan kompleks. Pada penelitian ini dihasilkan suatu alat pembangkit tegangan tinggi impuls yang menjawab persoalan dimensi dan kompleksitas. Metode pembangkitan tegangan tinggi impuls yang digunakan berbasis pada pemanfaatan ignition coil. Ignition coil diberi masukan berupa gelombang kotak. Gelombang kotak memicu proses switching pada komponen SSR (solid state relay) sehingga tegangan masukan yang berupa gelombang kotak dapat dinaikkan menjadi gelombang impuls bertegangan tinggi. Pengujian dilakukan dengan menerapkan tegangan masukan DC sebesar 1 – 12 V dan mengamati hasilnya dengan pengambilan 5 sampel spektrum pada osiloskop dan pengamatan fisis. Tegangan tinggi impuls mulai dapat dihasilkan pada variasi tegangan masukan 3 V. Secara fisis, tegangan tinggi impuls dapat diamati dengan munculnya bunga api ujung elektroda. Rata-rata tegangan tinggi impuls 31,4 kV tercapai pada tegangan masukan 7 V.Kata kunci: bunga api, ignition coil, impuls, pembangkit, tegangan tinggi ABSTRACTThe equipment of high voltage generating which so far still requires large and complex devices. In this research a high voltage impulse generator device was produced which answered the dimensional and complexity issues. The method of high voltage impulse generation is based on the utilization of the ignition coil. The ignition coil is given input in the form of a square wave. The square wave triggers the switching process on the SSR (solid state relay) component so that the input voltage in the form of a square wave can be increased into a high-voltage impulse wave. The test was carried out by applying a DC input voltage of 1 – 12 V and observing the results by taking 5 spectrum samples on an oscilloscope and physical observations. High voltage impulses can be generated at variations in the input voltage of 3 V. Physically, high voltage impulse can be observed by the appearance of a spark at the tip of the electrode. The average high voltage impulse of 31.4 kV is achieved at an input voltage of 7 V.Keywords: spark, ignition coil, impulse, generator, high voltage
2
Finneran, James J., Carolyn E. Schlundt, Victoria Bowman, and Keith Jenkins. "Dolphins reduce hearing sensitivity in anticipation of repetitive impulsive noise exposures." Journal of the Acoustical Society of America 153, no. 6 (2023): 3372. http://dx.doi.org/10.1121/10.0019751.
Full textAbstract:
The auditory steady-state response (ASSR) was continuously measured in two bottlenose dolphins during impulse noise exposures to determine whether observed head movements coincided with actual changes to auditory system sensitivity. Impulses were generated by a seismic air gun at a fixed inter-pulse interval of 10 s. ASSR amplitudes were extracted from the instantaneous electroencephalogram using coherent averaging within a sliding analysis window. A decline in ASSR amplitude was seen during the time interval between air gun impulses, followed by an elevation in ASSR amplitude immediately after each impulse. Similar patterns were not observed during control trials where air gun impulses were not generated. The results suggest that the dolphins learned the timing of the impulse noise sequences and lowered their hearing sensitivity before each impulse, presumably to lessen the auditory effects of the noise. The specific mechanisms responsible for the observed effects are at present unknown.
3
ITOH, MAKOTO, TAO YANG, and LEON O. CHUA. "EXPERIMENTAL STUDY OF IMPULSIVE SYNCHRONIZATION OF CHAOTIC AND HYPERCHAOTIC CIRCUITS." International Journal of Bifurcation and Chaos 09, no. 07 (1999): 1393–424. http://dx.doi.org/10.1142/s0218127499000961.
Full textAbstract:
In this paper, experimental results on impulsive synchronization of two kinds of chaotic circuits; namely, Chua's oscillator and a hyperchaotic circuit, are presented. To impulsively synchronize two Chua's oscillators, synchronization impulses sampled from one state variable of the driving circuit are transmitted to the driven circuit. To impulsively synchronize two hyperchaotic circuits, synchronizing impulses sampled from two signals of the driving circuit are sent to the driven circuit. Our experimental results show that the accuracy of impulsive synchronization depends on both the period and the width of the impulse. The ratio between the impulse width and impulse period for "almost-identical" synchronization increases as the impulse period increases. The robustness of impulsive synchronization to additive noise is also experimentally studied. For sufficiently short impulse periods, no significant differences are observed between impulsive and continuous synchronizations. The performance of chaotic spread spectrum communication systems based on impulsive synchronization is also studied experimentally.
4
Yao, Fengqi, Pei Cheng, Hao Shen, and Li Qiu. "On Input-to-State Stability of Impulsive Stochastic Systems with Time Delays." Abstract and Applied Analysis 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/589562.
Full textAbstract:
This paper is concerned withpth moment input-to-state stability (p-ISS) and stochastic input-to-state stability (SISS) of impulsive stochastic systems with time delays. Razumikhin-type theorems ensuringp-ISS/SISS are established for the mentioned systems with external input affecting both the continuous and the discrete dynamics. It is shown that when the impulse-free delayed stochastic dynamics arep-ISS/SISS but the impulses are destabilizing, thep-ISS/SISS property of the impulsive stochastic systems can be preserved if the length of the impulsive interval is large enough. In particular, if the impulse-free delayed stochastic dynamics arep-ISS/SISS and the discrete dynamics are marginally stable for the zero input, the impulsive stochastic system isp-ISS/SISS regardless of how often or how seldom the impulses occur. To overcome the difficulties caused by the coexistence of time delays, impulses, and stochastic effects, Razumikhin techniques and piecewise continuous Lyapunov functions as well as stochastic analysis techniques are involved together. An example is provided to illustrate the effectiveness and advantages of our results.
5
Feng, Yuming, Chuandong Li, and Tingwen Huang. "Periodically multiple state-jumps impulsive control systems with impulse time windows." Neurocomputing 193 (June 2016): 7–13. http://dx.doi.org/10.1016/j.neucom.2016.01.059.
Full text
6
Berezka, S. M., and A. V. Fartunina. "EMOTIONAL STATE AS FACTOR AFFECTING CONSUMER’S IMPULSE PURCHASING BEHAVIOR." Moscow University Economics Bulletin 58, no. 1 (2023): 191–211. http://dx.doi.org/10.55959/msu0130-0105-6-58-1-9.
Full textAbstract:
The article considers the relationship between the consumer’s emotional state and impulse purchases. The authors analyze the effects of the consumer’s impulse behavior on buying food products. According to numerous studies of consumer behavior conducted in Russia, the share of purchases defined as impulse purchases has been steadily increasing. Insufficient understanding of the specifics and nature of impulse purchases may negatively affect both consumers’ well-being, including their psychological and financial state and companies’ financial sustainability in the long term. The article aims to improve understanding of consumer behavior in Russia and identify the relationship between the consumer’s emotional state and impulse purchases of food products. Previous research into the topic has allowed the authors to form understanding of impulse purchases and systematize factors influencing them. The effect of consumer’s emotional state on impulse purchases of food products has also been described.An empirical study including a series of in-depth interviews and a quantitative survey forms the basis for the present research. To identify the relationship between the consumer’s emotional state and impulse purchases of food products in Russia the structural equation modeling method is applied. The result of testing are reveal several alternative models, differences in the patterns of impulse buying behavior of female and male respondents. The research confirmsthat negative emotions significantly affect sensitivity to visual characteristics of products, impulsivity, and unplanned purchasing with both female and male consumers. Positive emotions, in contrast, demonstrate statistical significance with men solely. These findings can be explained by the consumer’s desire to reduce emotional tension and improve emotional state.The article provides a basis for further research into emotionally driven consumer behavior and improve predictability of purchasing behavior.
7
Krishna, Anand, Sophia Ried, and Marie Meixner. "State-trait interactions in regulatory focus determine impulse buying behavior." PLOS ONE 16, no. 7 (2021): e0253634. http://dx.doi.org/10.1371/journal.pone.0253634.
Full textAbstract:
Little research has focused on motivational state-trait interactions to explain impulse buying. Although the trait chronic regulatory focus has been linked to impulse buying, no evidence yet exists for an effect of situational regulatory focus and no research has examined whether the fit of chronic and situational regulatory focus can influence impulse buying with actual consumptive consequences rather than purchase intentions. Two laboratory experiments (total N = 250) manipulated situational regulatory focus before providing opportunities for impulse buying. In addition, cognitive constraint was manipulated as a potential boundary condition for regulatory focus effects. Situational promotion focus increased impulse buying relative to situational prevention focus in participants with strong chronic promotion, consistent with regulatory fit theory and independently of cognitive constraint. Surprisingly, situational promotion focus also increased impulse buying in participants with strong chronic prevention, but only under low cognitive constraint. These results may be explained by diverging mediating cognitive processes for promotion vs. prevention focus’ effect on impulse buying. Future research must focus more on combining relevant states and traits in predicting consumer behavior. Marketing implications are discussed.
8
Sukhodolov, Alexander, and Igor Anokhov. "Values and Meanings as a Basis of Mass Media. The Blogosphere Potential in Creation of New Information Impulses." Theoretical and Practical Issues of Journalism 8, no. 3 (2019): 469–84. http://dx.doi.org/10.17150/2308-6203.2019.8(3).469-484.
Full textAbstract:
In the previous article [1], the authors considered the impulse wave mechanism of the interaction of mass media and the society as of a receiving side. An information impulse is an important factor of the aggregative state change of the respective societies. This impulse is changing continuously in accordance with the aims and objectives of the managing subject and with susceptibility of the managed object. In the 90’s, mass media as a means of society coordination got a significant bias towards negative news. Hostile issues (groundless and paid-for ones) became more important than positive news. The consequence was the loss of social optimism and the growth of intercommunal propensity towards conflict. Thus, the return to positive content of mass media is an issue of convalescent rehabilitation of the society and of its strategic survival. The above mentioned drawback of mass media, which appeared during the crisis of the 90’s, should be overcome by the managing subject with the use of totally new information impulses generators which take into account the modern realities of the media space. Mass media should not only reflect the moral character of the society, they should also provide a positive (sometimes ideal) focus to be oriented at. In the article, a hypothesis is suggested that the next stage of mass media development should be connected with four-component informative images which are combined into continued video sequences. The authors assume that the modern rapidly developing Internet networks can cause synergetic amalgamation of physically oriented, emotional, intellectual and axiological impulses. The common ethics of the individuals generating such impulses can become a basis of this amalgamation. Supposedly, the new synergetic impulse can overcome the destructive nature of the modern mass media and start a new form of society coordination.
9
Zhu, Haitao, Peng Li, and Xiaodi Li. "INPUT-TO-STATE STABILITY OF IMPULSIVE SYSTEMS WITH HYBRID DELAYED IMPULSE EFFECTS." Journal of Applied Analysis & Computation 9, no. 2 (2019): 777–95. http://dx.doi.org/10.11948/2156-907x.20180182.
Full text
10
Li, Linni, and Jin-E. Zhang. "Input-to-state stability of nonlinear systems with delayed impulse based on event-triggered impulse control." AIMS Mathematics 9, no. 10 (2024): 26446–61. http://dx.doi.org/10.3934/math.20241287.
Full textAbstract:
<p>This paper investigates input-to-state stability (ISS) of nonlinear systems with delayed impulse under event-triggered impulse control, where external inputs are different in continuous and impulse dynamics. First, an event-triggered mechanism (ETM) is proposed to avoid Zeno behavior. In order to ensure ISS of the considered system, the relationship among event triggering parameters, impulse intensity, and impulse delay is constructed. Then, as an application, ETM and impulse control gain for a specific kind of nonlinear systems are presented based on linear matrix inequalities (LMI). Finally, two examples confirm the feasibility and usefulness of the proposed strategy.</p>
11
Liu, Ying, Yuan Zhuang, Qiong Liu, and Lizhuang Huang. "Modeling and Dynamic Analysis of Algae–Fish Model with Two State-Dependent Impulse Controls." Symmetry 16, no. 10 (2024): 1265. http://dx.doi.org/10.3390/sym16101265.
Full textAbstract:
In ecological modeling, symmetry can manifest in multiple ways, significantly contributing to our understanding of ecosystem stability, species interactions, and ecological balance. Considering the bloom phenomenon caused by excessive algae in ponds and its impact on aquaculture, we establish a class of algae–fish ecological models with two state-dependent impulse controls. In this paper, we first discuss the existence of positive equilibria in the system without impulses. Second, the existence and asymptotic stability of the order-1 and order-2 periodic solutions are analyzed by applying successor functions and a Similar Poincare Criterion. Finally, numerical simulations demonstrate that the model exhibits order-1 and order-2 periodic solutions, clarifying that the system with two impulses can address the problem more effectively.
12
KOKTAVÝ, P., and J. ŠIKULA. "REVERSE BIASED P-N JUNCTION NOISE IN GaAsP DIODES WITH AVALANCHE BREAKDOWN INDUCED MICROPLASMAS." Fluctuation and Noise Letters 02, no. 02 (2002): L65—L70. http://dx.doi.org/10.1142/s0219477502000622.
Full textAbstract:
Random two-level or multiple-level current impulses may occur in electronic devices containing reverse biased p-n junctions in a certain operating mode. These impulses are usually rectangular, featuring constant amplitude, random pulse width and pulse origin time points. This phenomenon is generally ascribed to local avalanche breakdowns originating in p-n junction defect regions called microplasma regions. Based on experiment results, a two-state model of stochastic generation-recombination process has been elaborated for the two-level impulse noise allowing to derive some statistical characteristics of this process. It can be shown that the distribution of the probability density w(τ0) of the impulse separation τ0 and the probability density w(τ1) of the impulse width τ1 have exponential courses. The power spectral density of the noise current is of a G-R process type and depends on the particular microplasma properties. From the viewpoint of noise diagnostics, the most important features are the spectral density Su and noise current I N versus reverse current I R plots, because each local extreme of these plots corresponds to an active microplasma region. Thus obtained results may be used for p-n junction non-destructive diagnostics and quality assessment.
13
YAMANA, KENJIRO, YOSHIHIRO TOH, and HIDEKI TATEDA. "Electrophysiological Studies on the Temporal Organ of the Japanese House Centipede, Thereuonema Hilgendorfi." Journal of Experimental Biology 126, no. 1 (1986): 297–314. http://dx.doi.org/10.1242/jeb.126.1.297.
Full textAbstract:
The response of the temporal organ (organ of Tömösváry) has been studied electrophysiologically in the Japanese house centipede (Thereuonema hilgendorfi: Chilopoda). 1. Receptor cells of the temporal organ show spontaneous discharges (15–40 impulses s−1) which are depressed in a phasic-tonic manner by carbon dioxide stimuli. Perfusion of the presumed receptor site with a carbon dioxide-containing solution also changes the impulse frequency. 2. The impulse frequency of a receptor cell decreases linearly with a logarithmic increase in carbon dioxide concentration ranging from 0.001 % to 0.1 % in the phasic state and from 0.05% to 5.0% in the tonic state. These results suggest that the temporal organ of the house centipede functions as a carbon dioxide receptor, though it responds to other stimuli as described below. 3. Changing the pH of a carbon dioxide-containing solution changes the impulse frequency, probably by changing the molar fraction of CO2 molecules in the lymph surrounding the receptor site. pH also directly influences the impulse frequency of the receptor cell, but the effect is smaller than that of CO2 molecules. 4. Receptor cells respond to humidity changes, but the response is smaller than that to carbon dioxide. When receptor cells are stimulated by moist air (100% relative humidity, RH) after adaptation to dry air (0% RH), the impulse frequency increases by a factor of 1.29 ± 0.37 (mean ± S.D. measured for the first second, N = 29), and 1.16 % 0.28 (measured after adaptation to moist air, N = 29). 5. Air-borne chemicals also affect the impulse frequency of a receptor cell; it is increased by amines and decreased by fatty acids and aldehydes. Effects of these chemicals are discussed in relation to changing the pH of lymph bathing the receptor site. Note:
14
Sheasby, Brent W., and Jurgen F. Fohlmeister. "Impulse Encoding Across the Dendritic Morphologies of Retinal Ganglion Cells." Journal of Neurophysiology 81, no. 4 (1999): 1685–98. http://dx.doi.org/10.1152/jn.1999.81.4.1685.
Full textAbstract:
Impulse encoding across the dendritic morphologies of retinal ganglion cells. Nerve impulse entrainment and other excitation and passive phenomena are analyzed for a morphologically diverse and exhaustive data set ( n = 57) of realistic (3-dimensional computer traced) soma-dendritic tree structures of ganglion cells in the tiger salamander ( Ambystoma tigrinum) retina. The neurons, including axon and an anatomically specialized thin axonal segment that is observed in every ganglion cell, were supplied with five voltage- or ligand-gated ion channels (plus leakage), which were distributed in accordance with those found in a recent study that employed an equivalent dendritic cylinder. A wide variety of impulse-entrainment responses was observed, including regular low-frequency firing, impulse doublets, and more complex patterns involving impulse propagation failures (or aborted spikes) within the encoder region, all of which have been observed experimentally. The impulse-frequency response curves of the cells fell into three groups called fast, medium, andslow in approximate proportion as seen experimentally. In addition to these, a new group was found among the traced cells that exhibited an impulse-frequency response twice that of thefast category. The total amount of soma-dendritic surface area exhibited by a given cell is decisive in determining its electrophysiological classification. On the other hand, we found only a weak correlation between the electrophysiological group and the morphological classification of a given cell, which is based on the complexity of dendritic branching and the physical reach or “receptive field” area of the cell. Dendritic morphology determines discharge patterns to dendritic (synaptic) stimulation. Orthodromic impulses can be initiated on the axon hillock, the thin axonal segment, the soma, or even the proximal axon beyond the thin segment, depending on stimulus magnitude, soma-dendritic membrane area, channel distribution, and state within the repetitive impulse cycle. Although a sufficiently high dendritic Na-channel density can lead to dendritic impulse initiation, this does not occur with our “standard” channel densities and is not seen experimentally. Even so, impulses initiated elsewhere do invade all except very thin dendritic processes. Impulse-encoding irregularities increase when channel conductances are reduced in the encoder region, and the F/I properties of the cells are a strong function of the calcium- and Ca-activated K-channel densities. Use of equivalent dendritic cylinders requires more soma-dendritic surface area than real dendritic trees, and the source of the discrepancy is discussed.
15
Abdul Ali, Abdul Wali, and Normiza Mohamad Nor. "On the Characterisations of the Impulse Breakdown in High Resistivity Soils by Field Testing." Energies 14, no. 9 (2021): 2401. http://dx.doi.org/10.3390/en14092401.
Full textAbstract:
This paper presents experimental results of high-current impulse tests on six ground electrode configurations. A high impulse current generator is employed to inject different magnitudes of current into these rod electrodes, under both positive and negative impulse polarities. The effect of increasing the number of rod electrodes, hence the resistance at DC or steady-state (RDC), on the impulse response of ground electrodes is analysed. From the analysis of the results, it was found that the larger the size of rod electrodes, the less current-dependent Zimpulse becomes. The percentage of reduction of impulse impedance, Zimpulse from its steady state, and RDC values are found to be independent of impulse polarity. However, as the voltage magnitudes were increased, an occurrence of breakdown was seen, with higher breakdown voltage seen in negative impulse polarity in comparison to positive impulse polarity. Relatively, the higher the breakdown voltage is, seen in the ground electrodes subjected to negative polarity, the faster the time to breakdown is.
16
Lee, D. V., J. E. Bertram, and R. J. Todhunter. "Acceleration and balance in trotting dogs." Journal of Experimental Biology 202, no. 24 (1999): 3565–73. http://dx.doi.org/10.1242/jeb.202.24.3565.
Full textAbstract:
During quadrupedal trotting, diagonal pairs of limbs are set down in unison and exert forces on the ground simultaneously. Ground-reaction forces on individual limbs of trotting dogs were measured separately using a series of four force platforms. Vertical and fore-aft impulses were determined for each limb from the force/time recordings. When mean fore-aft acceleration of the body was zero in a given trotting step (steady state), the fraction of vertical impulse on the forelimb was equal to the fraction of body weight supported by the forelimbs during standing (approximately 60 %). When dogs accelerated or decelerated during a trotting step, the vertical impulse was redistributed to the hindlimb or forelimb, respectively. This redistribution of the vertical impulse is due to a moment exerted about the pitch axis of the body by fore-aft accelerating and decelerating forces. Vertical forces exerted by the forelimb and hindlimb resist this pitching moment, providing stability during fore-aft acceleration and deceleration.
17
Lv, Peng-Fei, and Yan-Qing Hong. "Self-Pilot Tone Based Adaptive Threshold RZ-OOK Decision for Free-Space Optical Communications." Photonics 10, no. 7 (2023): 714. http://dx.doi.org/10.3390/photonics10070714.
Full textAbstract:
This paper studies a novel self-pilot tone based adaptive threshold return-to-zero on-off keying (RZ-OOK) decision for free-space optical (FSO) communications. RZ-OOK has the characteristics of impulse series in the spectrum. Therefore, these impulses can be utilized as the pilot tones of the transmitted signal to convey the channel state information (CSI) of FSO links. Then, the CSI signal is extracted using a local oscillator (LO) with the frequencies of the impulse series and low pass filter. Finally, the adaptive threshold decision (ATD) is realized by assigning optimized weight factors into the extracted CSI signal. The proposed adaptive threshold RZ-OOK decision was studied in simulation under various pulse durations of RZ-OOK signal and frequencies of LO. Simulation results demonstrated that RZ-OOK with the proposed impulse tone-extracted CSI signal under optimized weight factor performs close to the conventional ATD under precise CSI knowledge.
18
Liu, Chang, Wenlu Liu, Tengda Wei, and Xiaodi Li. "Input-to-State Stability of Impulsive Switched Systems Involving Uncertain Impulse-Switching Moments." IEEE/CAA Journal of Automatica Sinica 11, no. 6 (2024): 1515–17. http://dx.doi.org/10.1109/jas.2023.124104.
Full text
19
Angin, Silvia Amelia Perangin, Nur Ahmadi Birahmani, and Nurul Jannah. "Pengaruh Kecepatan Akses Dan Brand Ambassador Terhadap Impulse Buying Aplikasi Shopee Pada Mahasiswa UINSU." Jurnal Ekonomi Manajemen dan Bisnis (JEMB) 2, no. 2 (2023): 325–34. http://dx.doi.org/10.47233/jemb.v2i2.1134.
Full textAbstract:
The following developments in new technology, especially e-commerce, have reached all areas of the general public and businesses in Indonesia where these developments affect existing market conditions resulting in customers having high impulse buying. Impulse buying is the decision to buy an item that is carried out quickly or spontaneously. The following study aims to know and analyze the Effect of Access Speed and Brand Ambassador on Impulse Buying of the Shopee Application to North Sumatra State Islamic University Students. The following research is quantitative research through the population, namely all students of the State Islamic University of North Sumatra. The sample in the following study amounted to 100 respondents through sample assessment techniques using the formula presented by Umar. The techniques used in the following study are descriptive statistical analysis and multiple linear regression. The results of research show that Speed of Access and Brand Ambassadors simultaneously have a positive and significant effect on the Impulse Buying of the Shopee application to students of the State Islamic University of North Sumatra. While partially, Access Speed has a positive and significant effect on the Impulse Buying of the Shopee application to students of the State Islamic University of North Sumatra, the Brand Ambassador has a positive and significant effect on the Impulse Buying of the Shopee application to students of the State Islamic University of North Sumatra.
20
Sun, Chung Hsun, and Chen Ru Wang. "Weight Switching Tri-State Median Filter." Applied Mechanics and Materials 764-765 (May 2015): 1279–82. http://dx.doi.org/10.4028/www.scientific.net/amm.764-765.1279.
Full textAbstract:
In this study, a weight switching tri-state median filter (TSM) is proposed for removing impulse noise in both smooth and complicated regions of the dealing images. The switching scheme adopted large center weight while removing impulse noise of the complicate regions and switched to small center weight while dealing with the smooth regions. The smooth and complicated regions were classified according to the statistics information of the dealing image. The quad-tree decomposition was used to reduce classification procedures. Simulation results demonstrate that the proposed center weight switching scheme makes the TSM effective in both smooth and complicated regions of images with different noise ratio.
21
Miller, Robert. "The feeling-state theory of impulse-control disorders and the Impulse-Control Disorder Protocol." Traumatology 16, no. 3 (2010): 2–10. http://dx.doi.org/10.1177/1534765610365912.
Full text
22
Toś, Mateusz. "Impulse control disorders in Parkinson’s disease." Aktualności Neurologiczne 21, no. 1 (2021): 30–35. http://dx.doi.org/10.15557/an.2021.0004.
Full textAbstract:
Parkinson’s disease is a neurodegenerative disease characterised by typical motor symptoms and a range of non-motor symptoms, among which impulse control disorders, defined by an inability to resist temptations, impulses or urges, despite them being potentially harmful to the patient or caregivers, are gaining an increasing research interest. The most common compulsive activities include pathological gambling, hyper-sexuality, compulsive buying, and binge eating. The prevalence of impulse control disorders varies greatly depending on the country where the study was conducted, probably due to cultural and socioeconomic factors or the research methods used. Non-ergotamine dopamine agonists, and to a lesser extent highdose L-dopa and other antiparkinsonian drugs, are considered to be major risk factors for the development of impulse control disorders. Young age of patients, male gender, and early age of disease onset also increase the risk of developing this type of disorder. A probable cause of impulse control disorders is a state of dopaminergic overstimulation within the mesolimbic pathway and frontal-striatal circuit. The management of impulse control disorders is particularly challenging in view of the possible worsening of motor symptoms. The primary strategy remains dose reduction, discontinuation or switching from a dopamine agonist to another drug. If this type of intervention has failed, it is advisable to add atypical antipsychotics or antiepileptic drugs. Because of the low detection rate of impulse control disorders and their potentially devastating impact on patients’ personal and family lives, every clinician managing patients with Parkinson’s disease should be particularly vigilant for the presence of such disorders.
23
Fasyni, Awisal, Astra Prima Budiarti, and Rizki Sri Lasmini. "FAKTOR-FAKTOR YANG MEMPENGARUHI ONLINE IMPULS BUYING." Jurnal Ekonomi Bisnis dan Kewirausahaan 10, no. 2 (2021): 175. http://dx.doi.org/10.26418/jebik.v10i2.47796.
Full textAbstract:
ABSTRACTThis study aims to analyze the factors that influence online impulse buying. The population in this study are people who have shopped impulsively at various e-stores in Indonesia such as Shopee, Lazada, Bukalapak and Tokopedia. The research sample size is 325 respondents. Data was collected by distributing questionnaires through social media and analyzed using Partial Least Square (PLS) with SmartPLS software. The results show that flow state, product affect and social interaction have a positive influence on online impulse buying so that the pleasure felt by consumers when browsing e-stores, positive (emotional) responses to products and social interactions can encourage the online impulse buying. Meanwhile, product risk has no effect on impulse buying, so product risk will not be related to the occurrence of online impulse buying. Online businessmen can encourage impulse buying by presenting attractive e-stores and providing communication space for fellow consumers through various media to be able to share information about products and shopping experiences. ABSTRAKPenelitian ini bertujuan untuk menganalisis faktor-faktor yang mempengaruhi online impuls buying. Populasi dalam penelitian ini adalah orang-orang yang pernah berbelanja secara impulsif pada berbagai e-store di Indonesia seperti Shopee, Lazada, Bukalapak dan Tokopedia. Ukuran sampel penelitian adalah 325 responden. Data dikumpulkan dengan menyebarkan kuesioner melalui media sosial dan dianalisis menggunakan Partial Least Square (PLS) dengan software SmartPLS. Hasil penelitian menunjukkan keadaan mengalir, persepsi produk dan interaksi sosial mempunyai pengaruh positif terhadap pembelian online secara impulsif sehingga kesenangan yang dirasakan konsumen ketika menelusuri e-store, respon (emosi) positif terhadap produk dan interaksi sosial yang dilakukan konsumen dapat mendorong munculnya pembelian impulsif online. Sementara resiko produk tidak mempunyai pengaruh terhadap pembelian impulsif sehingga besar kecilnya resiko produk tidak akan berhubungan dengan terjadinya online impuls buying. Pelaku bisnis online dapat mendorong terjadinya pembelian impulsif dengan menghadirkan e-store yang menarik dan menyediakan ruang komunikasi antarkonsumen melalui berbagai media untuk dapat saling berbagi informasi mengenai produk dan pengalaman berbelanja.JEL : M31
24
Chen, Qifeng, Hua Jin, Caisheng Wei, and Yuxin Liao. "Distributed Impulsive Satellite Swarm-Keeping Based on Connectivity and Relative Cartesian States." Journal of Guidance, Control, and Dynamics 48, no. 2 (2025): 269–81. https://doi.org/10.2514/1.g008144.
Full textAbstract:
Topological connectivity, which is the minimum requirement for a swarm to cooperate, was exploited to design control strategies for satellite swarm-keeping. Low fuel consumption is expected to be achieved by imposing only this minimum requirement on the relative motion. A distributed topology regulation method was adopted to maintain connectivity via proper topology switching with variations in intersatellite distances in free motion. Intersatellite distance-keeping control was only activated when free relative motion would otherwise disrupt connectivity of all possible topologies or when collision avoidance was needed. Velocity impulse commands for relative distance control were generated according to the relative states between critical satellite pairs. A distributed protocol was proposed to integrate the pairwise velocity impulse commands to obtain the impulse to be implemented for each satellite. The convergence of the protocol was theoretically guaranteed. The simulation of 10-day swarm-keeping for 50 satellites in low Earth orbit under the influence of the Earth’s nonspherical [Formula: see text] term demonstrated that the swarm could be kept in bounded relative motion with an average velocity impulse of approximately 0.038 m/s per day and an average number of velocity impulses of approximately 1.22 per orbit for each satellite, and collisions could be eliminated in the steady state.
25
Cloyne, James S., Òscar Jordà, and Alan M. Taylor. "State-Dependent Local Projections: Understanding Impulse Response Heterogeneity." Federal Reserve Bank of San Francisco, Working Paper Series 2023, no. 05 (2023): 01–58. http://dx.doi.org/10.24148/wp2023-05.
Full textAbstract:
An impulse response is the dynamic average effect of an intervention across horizons. We use the well-known Kitagawa-Blinder-Oaxaca decomposition to explore a response’s heterogeneity over time and over states of the economy. This can be implemented with a simple extension to the usual local projection specification that nevertheless keeps the model linear in parameters. Using our new decomposition-based approach, we show how to unpack heterogeneity in the fiscal multiplier, an object that at any point in time may depend on a number of potentially correlated factors, including existing economic conditions and the monetary response. In our application, the fiscal multiplier varies considerably with monetary policy: it can be as small as zero, or as large as 2, depending on the degree of monetary offset.
26
Li, Linni, and Jin-E. Zhang. "Input-to-state stability of stochastic nonlinear system with delayed impulses." Mathematical Biosciences and Engineering 21, no. 2 (2024): 2233–53. http://dx.doi.org/10.3934/mbe.2024098.
Full textAbstract:
<abstract><p>Stochastic input-to-state stability (SISS) of the stochastic nonlinear system has received extensive research. This paper aimed to investigate SISS of the stochastic nonlinear system with delayed impulses. First, when all subsystems were stable, using the average impulsive interval method and Lyapunov approach, some theoretical conditions ensuring SISS of the considered system were established. The SISS characteristic of the argumented system with both stable and unstable subsystems was also discussed, then the stochastic nonlinear system with multiple delayed impulse jumps was considered and SISS property was explored. Additionally, it should be noted that the Lyapunov rate coefficient considered in this paper is positively time-varying. Finally, several numerical examples confirmed validity of theoretical results.</p></abstract>
27
O., Ugbomhe Ugbomhe, Okpamen P. E., and Simon Adomokhai S. "Effects of Demographic Factors on Impulse Buying Behaviour of Consumers in Auchi, Edo State, Nigeria." Economics and Business Quarterly Reviews 4, no. 2 (2021): 120–33. https://doi.org/10.31014/aior.1992.04.02.350.
Full textAbstract:
The objective of the study was to determine the effects of demographic factors (Age, Gender, Income, Education, Marital Status and Occupation) on impulse buying bahaviour of consumers in Auchi. The study adopted survey design. The population of the study consisted all consumers who have made purchases in their present shopping trip in selected shops (supermarkets). The sample size of 384 was determined using Godden’s formula cited in Sangatang, Siochi and Plaza (2017). The main research instrument was questionnaire which was used to survey 384 respondents (192 males and 192 females). Non-probability convenience sampling was used in administering copies of questionnaire to the respondents. Multiple regression analysis was used to determine result for the data collected with the aid of SPSS 20.0. The multiple regression analysis result revealed among others that demographic characteristics (age, gender, income, education, marital status) had significant relationship with impulse buying behavior of consumers. The study concluded that demographic characteristics of consumers could explain the impulse buying behavior of consumers. The reason is that the study showed significant relationship between demographic characteristics and impulse buying behaviour of consumers might be related to the respondent’s perception about purchasing decision. The study recommended that consumer should arrange their priorities and always weigh specific weight of their preferences in relation to each other according to a particular pattern when purchasing products to prevent buying on impulse.
28
Velte, T. J., and R. F. Miller. "Spiking and nonspiking models of starburst amacrine cells in the rabbit retina." Visual Neuroscience 14, no. 6 (1997): 1073–88. http://dx.doi.org/10.1017/s0952523800011780.
Full textAbstract:
AbstractThe integrative properties of starburst amacrine cells in the rabbit retina were studied with compartmental models and computer-simulation techniques. The anatomical basis for these simulations was provided by computer reconstructions of intracellularly stained starburst amacrine cells and published data on dendritic diameter and biophysical properties. Passive and active membrane properties were included to simulate spiking and nonspiking behavior. Simulated synaptic inputs into one or more compartments consisted of a bipolar-like conductance change with peak and steady-state components provided by the sum of two Gaussian responses. Simulated impulse generation was achieved by using a model of impulse generation that included five nonlinear channels (INa, ICa, Ia,. Ik. Ik.Ca). The magnitude of the sodium channel conductance change was altered to meet several different types of impulse generation and propagation behaviors. We studied a range of model constraints which included variations in membrane resistance (Rm) from 4,000 Ω.cm2 to 100,000 Ω.cm2, and dendritic diameter from 0.1 to 0.3 μm. In a separate series of simulations, we studied the feasibility of voltage-clamping starburst amacrine cells using a soma-applied, single-electrode voltage clamp, based on models with and without dendritic and somatic spiking behavior. Our simulation studies suggest that single dendrites of starburst amacrine cells can behave as independent functional subunits when the Rm is high, provided that one or a small number of dendrites is synaptically co-activated. However, as the number of co-activated dendrites increases, the starburst cell behavior becomes more uniform and independent dendritic function is less prevalent. The presence of impulse activity in the dendrites raises new questions about dendritic function. However, dendritic impulses do not necessarily eliminate independent dendritic function, because dendritic impulses commonly fail as they propagate toward the soma, where they contribute EPSP-like responses which summate with conventional synaptic currents.
29
Che Rose, Farid Zamani, Mohd Tahir Ismail, and Mohd Hanafi Tumin. "Outliers detection in state-space model using indicator saturation approach." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 3 (2021): 1688. http://dx.doi.org/10.11591/ijeecs.v22.i3.pp1688-1696.
Full textAbstract:
Structural changes that occur due to outliers may reduce the accuracy of an estimated time series model, shifting the mean distribution and causing forecast failure. This study used general-to-specific approach to detect outliers via indicator saturation approach in the local level model framework. Focusing on impulse indicator saturation, performance recorded by the suggested approach was evaluated using Monte Carlo simulations. To tackle the issue of higher number of regressors compared to the number of observations, this research utilized the split-half approach algorithm. We found that the impulse indicator saturation performance relies heavily on the size of outlier, location of outlier and number of splits in the series examined. Detection of outliers using sequential and non-sequential algorithms is the most crucial issue in this study. The sequential searching algorithm was able to outperform the non-sequential searching algorithm in eliminating the non-significant indicators based on potency and gauge. The outliers captured using impulse indicator saturation in financial times stock exchange (FTSE) United States of America (USA) shariah index correspond to the financial crisis in 2008-2009.
30
Rose, Farid Zamani Che, Mohd Tahir Ismail, and Mohd Hanafi Tumin. "Outliers detection in state-space model using indicator saturation approach." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 3 (2021): 1688–96. https://doi.org/10.11591/ijeecs.v22.i3.pp1688-1696.
Full textAbstract:
Structural changes that occur due to outliers may reduce the accuracy of an estimated time series model, shifting the mean distribution and causing forecast failure. This study used general-to-specific approach to detect outliers via indicator saturation approach in the local level model framework. Focusing on impulse indicator saturation, performance recorded by the suggested approach was evaluated using Monte Carlo simulations. To tackle the issue of higher number of regressors compared to the number of observations, this research utilized the split-half approach algorithm. We found that the impulse indicator saturation performance relies heavily on the size of outlier, location of outlier and number of splits in the series examined. Detection of outliers using sequential and non-sequential algorithms is the most crucial issue in this study. The sequential searching algorithm was able to outperform the non-sequential searching algorithm in eliminating the nonsignificant indicators based on potency and gauge. The outliers captured using impulse indicator saturation in financial times stock exchange (FTSE) United States of America (USA) shariah index correspond to the financial crisis in 2008-2009.
31
Liu, Xiao Ling, Da Tong Song, and Pei Ran Yang. "On Transient EHL of a Skew Roller Subjected to a Load Impact in Rolling Bearings." Key Engineering Materials 739 (June 2017): 108–19. http://dx.doi.org/10.4028/www.scientific.net/kem.739.108.
Full textAbstract:
Based on the non-steady state operating condition in machine elements, numerical analysis of a transient elastohydrodynamic lubrication (EHL) finite line contact between a skewed roller and an outer race in cylindrical roller bearings was carried out, and a complete numerical solution of skewed roller pairs EHL under the transient condition was obtained. The effects of the load impact, together with the skewing angle impulses on the lubricating performance of skew roller pairs were discussed. Results show that, different from the steady state, the transient effect of the skew roller lubrication is mainly governed by the skew angle impulse, and the load impact. The film dimple is generated during the load impact, or the skewing angle impulse due to the normal approach velocity of the film. Compared to that of the ideal roller, the minimum film thickness decreases due to the roller skew when the transient load happens. Variation in the skewing angle leads to contrary distribution of the film thickness at the two half parts of the roller. Meanwhile, it can decrease the minimum film thickness and be harmful to the lubrication compared to the steady state. Consequently, the transient effect in the process of lubrication of skew roller pairs should not be neglected.
32
Ikhwanus, Muhammad, and Takeshi Morimoto. "Rapid Breakdown Time in Positive Impulse Voltages through Spectroscopy Analysis." Energies 17, no. 3 (2024): 705. http://dx.doi.org/10.3390/en17030705.
Full textAbstract:
The air discharge phenomenon, characterized by its rapid and transient nature, is inherently unpredictable, emphasizing the need for a comprehensive understanding of its physical interactions. Our experimental setup involved voltage generators producing both positive and negative impulse voltages (±100 kV, ±125 kV, and ±150 kV) at a 3.5 cm gap distance in a needle-to-plane geometry. This setup facilitated the study of individual spectral lines of impulse voltage discharges, with a specific emphasis on examining oxygen transitions through spectroscopy analysis. To explore the influence of photon emission on the breakdown rate, we examined the correlation between decay time, excitation temperature, and peak intensity during the transition from an upper state to a lower state. Our findings reveal that positive impulse voltage discharges more rapidly than negative impulse voltages. This heightened discharge rate is attributed to the higher peak intensities of O II at 313.421 and 241.162 nm, as well as O IV at 337.806 nm, observed in the excited state, as opposed to O I at 777.417 nm in the combination state. The inference drawn from the larger peak intensity suggests that energetic photon emission plays a pivotal role in initiating and expediting electron discharge in positive voltages.
33
Ernestivita, Gesty, Budiyanto ., and Suhermin . "Increasing Impulse Buying Customer Through Social Media Influencer: E-WOM, Testimonial, Flashsale as Stimulus." International Journal of Research and Review 9, no. 12 (2022): 59–69. http://dx.doi.org/10.52403/ijrr.20221207.
Full textAbstract:
Shopee as a shopping platform with the most traffic in Indonesia has various features that can increase transactions due to the impact of changes in consumer shopping patterns including E-WOM and testimonials containing after-purchase consumer reviews and flashale. Therefore, the purpose of this study is to analyze: the effect of E-WOM on SMI, the effect of testimonials on SMI, the effect of flashale on SMI, the effect of E-WOM on impulse buying, the effect of testimonials on impulse buying, the effect of flashsale on impulse buying, the effect of SMI on impulse buying, the effect of E-WOM on impulse buying, the effect of Testimonial on impulse buying, the effect of Flashsale on impulse buying through SMI on the Shopee platform. This study uses a quantitative approach and SEM-PLS analysis. The population of this research is all unlimited users of the Shopee platform and a sample of 180 respondents. The results of this study state that there is a significant effect of E-WOM on SMI, testimonials on SMI, flashsale on SMI, E-WOM on impulse buying, testimonials on impulse buying, and flashsale on impulse buying. SMI on impulse buying and E-WOM, testimonials and flashsale on impulse buying through SMI. Keywords: E-WOM, Testimonial, Flashsale, SMI, Impulse Buying
34
Campbell, Kathleen, Nicole Cosenza, Robert Meech, et al. "Preloaded D-methionine protects from steady state and impulse noise-induced hearing loss and induces long-term cochlear and endogenous antioxidant effects." PLOS ONE 16, no. 12 (2021): e0261049. http://dx.doi.org/10.1371/journal.pone.0261049.
Full textAbstract:
Objective Determine effective preloading timepoints for D-methionine (D-met) otoprotection from steady state or impulse noise and impact on cochlear and serum antioxidant measures. Design D-met started 2.0-, 2.5-, 3.0-, or 3.5- days before steady-state or impulse noise exposure with saline controls. Auditory brainstem response (ABRs) measured from 2 to 20 kHz at baseline and 21 days post-noise. Samples were then collected for serum (SOD, CAT, GR, GPx) and cochlear (GSH, GSSG) antioxidant levels. Study sample Ten Chinchillas per group. Results Preloading D-met significantly reduced ABR threshold shifts for both impulse and steady state noise exposures but with different optimal starting time points and with differences in antioxidant measures. For impulse noise exposure, the 2.0, 2.5, and 3.0 day preloading start provide significant threshold shift protection at all frequencies. Compared to the saline controls, serum GR for the 3.0 and 3.5 day preloading groups was significantly increased at 21 days with no significant increase in SOD, CAT or GPx for any impulse preloading time point. Cochlear GSH, GSSG, and GSH/GSSG ratio were not significantly different from saline controls at 21 days post noise exposure. For steady state noise exposure, significant threshold shift protection occurred at all frequencies for the 3.5, 3.0 and 2.5 day preloading start times but protection only occurred at 3 of the 6 test frequencies for the 2.0 day preloading start point. Compared to the saline controls, preloaded D-met steady-state noise groups demonstrated significantly higher serum SOD for the 2.5–3.5 day starting time points and GPx for the 2.5 day starting time but no significant increase in GR or CAT for any preloading time point. Compared to saline controls, D-met significantly increased cochlear GSH concentrations in the 2 and 2.5 day steady-state noise exposed groups but no significant differences in GSSG or the GSH/GSSG ratio were noted for any steady state noise-exposed group. Conclusions The optimal D-met preloading starting time window is earlier for steady state (3.5–2.5 days) than impulse noise (3.0–2.0). At 21 days post impulse noise, D-met increased serum GR for 2 preloading time points but not SOD, CAT, or GpX and not cochlear GSH, GSSG or the GSH/GSSG ratio. At 21 days post steady state noise D-met increased serum SOD and GPx at select preloading time points but not CAT or GR. However D-met did increase the cochlear GSH at select preloading time points but not GSSG or the GSH/GSSG ratio.
35
Adamatzky, Andrew, Jörg Schnauß, and Florian Huber. "Actin droplet machine." Royal Society Open Science 6, no. 12 (2019): 191135. http://dx.doi.org/10.1098/rsos.191135.
Full textAbstract:
The actin droplet machine is a computer model of a three-dimensional network of actin bundles developed in a droplet of a physiological solution, which implements mappings of sets of binary strings. The actin bundle network is conductive to travelling excitations, i.e. impulses. The machine is interfaced with an arbitrary selected set of k electrodes through which stimuli, binary strings of length k represented by impulses generated on the electrodes, are applied and responses are recorded. The responses are recorded in a form of impulses and then converted to binary strings. The machine’s state is a binary string of length k : if there is an impulse recorded on the i th electrode, there is a ‘1’ in the i th position of the string, and ‘0’ otherwise. We present a design of the machine and analyse its state transition graphs. We envisage that actin droplet machines could form an elementary processor of future massive parallel computers made from biopolymers.
36
Chen, Yuwen, Qiuya Sun, Yijun Huang, Feng Zhang, and Xingxu Qian. "Transformer winding state diagnosis method based on short-circuit impulse response and multi-feature joint." Journal of Physics: Conference Series 2896, no. 1 (2024): 012022. https://doi.org/10.1088/1742-6596/2896/1/012022.
Full textAbstract:
Abstract To investigate the relationship between the physical characteristics of transformer short-circuit impulse signals and winding deformation, this paper proposes a transformer winding state diagnosis method based on the combination of short-circuit impulse response and multiple features. Firstly, based on the relative displacement model of a single degree of freedom system, a winding short-circuit impulse response spectrum is constructed, and the energy entropy characteristics of different frequency bands are extracted using the Hilbert energy spectrum. Secondly, the energy spectrum is converted into a time-frequency matrix, and its energy density distribution and short-term energy attenuation changes are quantified. Then, we perform support vector regression (SVD) decomposition and calculate the proportion of singular value vectors. Finally, multiple feature quantities are combined to construct a feature set, which is then input into the SVD model optimized by the particle swarm algorithm (PSO) for diagnosis. The experimental results show that the proposed method can accurately extract the physical characteristics of short-circuit impulse signals, and the error between the obtained transformer winding deformation diagnosis value and the actual state value is only 3.6%, which can provide guidance for online monitoring of the transformer winding state.
37
Wang, Dandan, Lijun Gao, and Guangdeng Zong. "Input-to-state stability of impulsive switched hybrid time-delay systems with delayed impulse effects." Transactions of the Institute of Measurement and Control 37, no. 8 (2014): 970–82. http://dx.doi.org/10.1177/0142331214551401.
Full text
38
Arnal, Josep, and Luis Súcar. "Hybrid Filter Based on Fuzzy Techniques for Mixed Noise Reduction in Color Images." Applied Sciences 10, no. 1 (2019): 243. http://dx.doi.org/10.3390/app10010243.
Full textAbstract:
To decrease contamination from a mixed combination of impulse and Gaussian noise on color digital images, a novel hybrid filter is proposed. The new technique is composed of two stages. A filter based on a fuzzy metric is used for the reduction of impulse noise at the first stage. At the second stage, to remove Gaussian noise, a fuzzy peer group method is applied on the image generated from the previous stage. The performance of the introduced algorithm was evaluated on standard test images employing widely used objective quality metrics. The new approach can efficiently reduce both impulse and Gaussian noise, as much as mixed noise. The proposed filtering method was compared to the state-of-the-art methodologies: adaptive nearest neighbor filter, alternating projections filter, color block-matching 3D filter, fuzzy peer group averaging filter, partition-based trimmed vector median filter, trilateral filter, fuzzy wavelet shrinkage denoising filter, graph regularization filter, iterative peer group switching vector filter, peer group method, and the fuzzy vector median method. The experiments demonstrated that the introduced noise reduction technique outperforms those state-of-the-art filters with respect to the metrics peak signal to noise ratio (PSNR), the mean absolute error (MAE), and the normalized color difference (NCD).
39
Nor, N. Mohamad, and R. Rajab. "Correlation Between Steady State and Impulse Earth Resistance Values." American Journal of Applied Sciences 6, no. 6 (2009): 1139–42. http://dx.doi.org/10.3844/ajassp.2009.1139.1142.
Full text
40
Liu, Ningzhe. "A Pest Management Model with Multi-State Dependent Impulse." Journal of Applied Mathematics and Physics 10, no. 04 (2022): 1335–51. http://dx.doi.org/10.4236/jamp.2022.104094.
Full text
41
Kudinovich, I. V., and M. N. Syraleva. "Thermal state of a heating element under impulse heating." Journal of Physics: Conference Series 891 (November 10, 2017): 012177. http://dx.doi.org/10.1088/1742-6596/891/1/012177.
Full text
42
Zhang, Meng, Guohua Song, and Lansun Chen. "A state feedback impulse model for computer worm control." Nonlinear Dynamics 85, no. 3 (2016): 1561–69. http://dx.doi.org/10.1007/s11071-016-2779-0.
Full text
43
You, Chunli, Linxin Shu, and Xiao-bao Shu. "Approximate controllability of second-order neutral stochastic differential evolution systems with random impulsive effect and state-dependent delay." AIMS Mathematics 9, no. 10 (2024): 28906–30. http://dx.doi.org/10.3934/math.20241403.
Full textAbstract:
<p>In this paper, we have discussed a class of second-order neutral stochastic differential evolution systems, based on the Wiener process, with random impulses and state-dependent delay. The system is an extension of impulsive stochastic differential equations, since its random effect is not only from stochastic disturbances but also from the random sequence of the impulse occurrence time. By using the cosine operator semigroup theory, stochastic analysis theorem, and the measure of noncompactness, the existence of solutions was obtained. Then, giving appropriate assumptions, the approximate controllability of the considered system was inferred. Finally, two examples were given to illustrate the effectiveness of our work.</p>
44
Sing, Gary C., Simon P. Orozco, and Maurice A. Smith. "Limb motion dictates how motor learning arises from arbitrary environmental dynamics." Journal of Neurophysiology 109, no. 10 (2013): 2466–82. http://dx.doi.org/10.1152/jn.00497.2011.
Full textAbstract:
A key idea in motor learning is that internal models of environmental dynamics are internally represented as functions of spatial variables including position, velocity, and acceleration of body motion. We refer to such a representation as motion dependent. The evidence for a motion-dependent representation is, however, primarily based on examination of the adaptation to motion-dependent dynamic environments. To more rigorously test this idea, we examined the adaptive response to perturbations that cannot be well approximated by motion-state: force-impulses—brief, high-amplitude pulses of force. The induced adaptation characterizes the impulse response of the system—a widely used technique for probing system dynamics in engineering systems identification. Here we examined the adaptive responses to two different force-impulse perturbations during human voluntary reaching movements. We found that although neither could be well approximated by motion-state ( R2< 0.18 in both cases), both perturbations induced single-trial adaptive responses that were ( R2> 0.87). Moreover, these responses were similar in shape to those induced by low-fidelity motion-based approximations of the force-impulses ( r > 0.88). Remarkably, we found that the motion dependence of the adaptive responses to force-impulses persisted, even after prolonged exposure ( R2> 0.95). During a 300-trial training period, trial-to-trial fluctuations in the position, velocity, and acceleration of motion accurately predicted trial-to-trial fluctuations in the adaptive response, and the adaptation gradually became more specific to the perturbation, but only via reorganization of the structure of the motion-dependent representation. These results indicate that internal models of environmental dynamics represent these dynamics in a motion-dependent manner, regardless of the nature of the dynamics encountered.
45
Hughson, R. L., D. L. Sherrill, and G. D. Swanson. "Kinetics of VO2 with impulse and step exercise in humans." Journal of Applied Physiology 64, no. 1 (1988): 451–59. http://dx.doi.org/10.1152/jappl.1988.64.1.451.
Full textAbstract:
The constancy of the time course (i.e., dynamic linearity) of the O2 uptake (VO2) response to exercise was examined by testing the law of superposition on data from impulse and step work rate forcings. Two impulses (10 s at a 235-W increase above a 25-W base line, I-235; and 5 s at a 475-W increase above a 25-W base line, I-475), four steps (ST) (25-65 W, ST1; 65-105 W, ST2; 25-105 W, ST3; and 25-145 W, ST4), and the corresponding off-transient responses were performed six to eight times by each of five subjects. The integrated area (G) of the VO2 response for I-235 was similar to that of ST1 and ST2 (P greater than 0.05); the I-475 G was significantly greater (P less than 0.05). The time constant of VO2 during the step function on-transient response for the second exponential component was significantly faster for ST1 and significantly slower for I-235 and I-475 than for ST2, ST3, and ST4 (P less than 0.05). However, I-235 and I-475 time constants for VO2 were not different from the ST off-transient values. Attempts to superimpose the integral of the impulse on the ST data showed that the early rapid increase in VO2 in the ST was underpredicted by the impulse and that the impulse response lagged behind the ST at all points before steady state. It can be concluded that VO2 kinetics failed the test of superposition and are therefore described by a nonlinear dynamic system.
46
Hizamul-Din, Hanis Hamizah, Normiza Mohamad Nor, Nurul Nadia Ahmad, Nur Farahi Idris, and Azwan Mahmud. "Investigations on the Performance of Various Horizontal Ground Electrodes." Energies 14, no. 4 (2021): 1036. http://dx.doi.org/10.3390/en14041036.
Full textAbstract:
Experimental work on grounding systems has shown that the characteristics of grounding systems under high impulse conditions are different than those obtained at steady-state conditions. Investigations on the grounding systems under high impulse conditions make it evident that ionization process could occur in soil, due to field enhancement in air voids in the soil. This process can lead to an ionization zone that reduces the impulse resistance of grounding systems (due to an enlargement of a virtually increased cross-sectional area) from its steady state. There have been many studies pointing towards the effect of various soils and the ground electrode’s arrangement on the reduction of impulse resistance from its steady state, and its decrease with increasing currents. It was, however, noted that very few studies on the effect of the configurations of horizontal ground electrodes have been performed by field measurements before. This work presents the experimental and simulated work of various configurations of ground electrodes, with spikes which are thought to enhance the ionization process in soil. In this paper, field measurement was set up, and the results of field measurements were applied with finite element method (FEM) to obtain the electric field values. It was demonstrated that with the addition of spike on the electrodes, a high electric field was computed. The time to peak current, discharged time and impulse impedance were also analyzed for various horizontal ground electrodes.
47
Su, Xiaoming, and Yali Zhi. "Sufficient Conditions of Asymptotic Stability of the Time-Varying Descriptor Systems." International Journal of Engineering Mathematics 2013 (December 10, 2013): 1–4. http://dx.doi.org/10.1155/2013/920851.
Full textAbstract:
We discuss the time-varying descriptor systems. Firstly, a sufficient condition of asymptotic stability and impulse-free is derived based on Riccati equation. Secondly, we design a state feedback controller to make the close-loop system asymptotically stable and impulse-free. Finally, a numerical example demonstrates the proposed results.
48
Assimakis, Nicholas, Maria Adam, and Christos Massouros. "Distributed Periodic Steady State Kalman Filter." International Journal of Circuits, Systems and Signal Processing 16 (January 17, 2022): 668–74. http://dx.doi.org/10.46300/9106.2022.16.83.
Full textAbstract:
In this paper a distributed implementation for the periodic steady state Kalman filter is proposed. The distributed algorithm has parallel structure and can be implemented using processors in parallel without idle time. The number of processors is equal to the model period. The resulting speedup is also derived. The Finite Impulse Response (FIR) form of the periodic steady state Kalman filter is derived.
49
Medeiros, Romulo Geisel Santos, Claudete Catanhede do Nascimento, Sâmia Valéria dos Santos Barros, Adilene Kroessin, Estevão Vicente Cavalcanti Monteiro de Paula, and Niro Higuch. "TOMOGRAFIA DE IMPULSO NA AVALIAÇÃO DA SANIDADE E RENDIMENTO DE Micrandopsis scleroxylon W. Rodr." Nativa 5 (January 23, 2018): 649–55. http://dx.doi.org/10.31413/nativa.v5i7.4514.
Full textAbstract:
A utilização de novas tecnologias para caracterizar madeiras tropicais é essencial para reduzir desperdícios na cadeia produtiva da indústria madeireira, aumentando o rendimento e produtividade do setor. Objetivou-se neste trabalho avaliar a utilização da tomografia de impulso na identificação do estado de sanidade e rendimento do lenho de árvores na floresta. O estudo foi conduzido em 01 hectare na Estação Experimental de Silvicultura Tropical – Núcleo ZF-2 - INPA. Foram selecionadas quatro árvores de Micrandopsis scleroxylon W. Rodr. para a utilização da tomografia de impulso; técnica essa que se baseia no cálculo da velocidade de propagação das ondas mecânicas no interior do lenho, originando uma imagem tomográfica. Utilizou-se a fórmula de Smalian para determinação dos volumes de madeira total e do oco, sendo sua diferença, o volume de madeira útil. Também foi estimado o volume de madeira útil a partir dos dados da tomografia de impulso. As árvores foram desdobradas na serraria para o cálculo do rendimento. Estes dados foram comparados com a classificação feita no software Envi 4.8, verificando a relação entre essas variáveis. A tomografia de impulso mostrou-se eficiente para estimar o estado de sanidade da árvore na floresta, demonstrando ser uma ferramenta útil no planejamento da exploração florestal.Palavra-chave: metodologia não destrutiva, manejo florestal, madeiras da Amazônia. IMPULSE TOMOGRAPHY IN THE EVALUATION SANITY AND PERFOMANCE OF \Micrandopsis scleroxylon W. Rodr. ABSTRACT:The use of new technologies to characterize tropical Wood is essential to reduce waste in wood industry productive chain, increasing the performance and productivity of the sector. The goal of this work was to access the use of the non-destructive method of impulse tomography in the identification of sanity state and wood performance of standing trees in the forest. The study was led in 01 hectare in Experimental Station of Tropical Silviculture – Campus ZF-2 - INPA. Four trees of the Micrandopsis scleroxylon W. Rodr. were selected for the impulse tomography application, technique based on the calculation of the wave propagation speed in the interior of the wood, giving rise to a tomographic image. It was used the Smalian formula to determine the total wood volume taking away the hollow volume equals the volume of useful wood. It was also estimated the useful volume using the data of the impulse tomography. The trees were unfolded in the sawmill for performance calculation. These data were compared to the classification done in the Envi 4.8 software, verifying the relation between the variables. The impulse tomography proved to be efficient to estimate the health status of the tree in the forest, showing to be a useful tool the forest exploration planning.Keywords: non-destructive methodology, forest management, Amazon wood. DOI: http://dx.doi.org/10.5935/2318-7670.v05nespa28
50
Hoa, Nguyen Le Thai. "The impact of e-retailer personality and website quality on online impulse buying." HO CHI MINH CITY OPEN UNIVERSITY JOURNAL OF SCIENCE - ECONOMICS AND BUSINESS ADMINISTRATION 11, no. 2 (2021): 97–113. http://dx.doi.org/10.46223/hcmcoujs.econ.en.11.2.1400.2021.
Full textAbstract:
The development of information technology and the proliferation of e-commerce make online shopping more and more popular. Recent studies indicate that in the modern world, most shoppers purchased products spontaneously and highlighted the necessity of in-depth understanding of impulse buying as an emerging phenomenon in marketing literature. A large number of studies focus on the factors effective on consumers’ impulse buying in brick and mortar retailers but rare research investigate these factors in online environment. There are two key perspectives on the factors effective on impulse buying: a customer’s inherent characters and his/her current state of mind. Based on the self-congruity theory and latent state-trait theory, this study considered this concept in two-sided approach: the state of mind incurred in the shopping environment (website quality) and a particular personal characteristics inherent to the individual customer (e-retailer personality). This paper adapted the concept of retail brand/store personality from brick and mortar context to internet marketing by investigating the impact of e-retailer personality on website quality and impulse buying. Data were collected from 563 online shoppers in Vietnam by online survey and analyzed with Structural Equation Model (SEM). The results indicate some practical implications for website design and enhancing impulsive buying.