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Artykuły w czasopismach na temat „Break date”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Karoglou, Michail, Panicos Demetriades, and Siong Hook Law. "One date, one break?" Empirical Economics 41, no. 1 (2010): 7–24. http://dx.doi.org/10.1007/s00181-010-0436-x.

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Czech, Katarzyna. "Structural Changes in Wheat Market." Zeszyty Naukowe SGGW w Warszawie - Problemy Rolnictwa Światowego 16, no. 4 (2016): 92–98. http://dx.doi.org/10.22630/prs.2016.16.4.102.

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Time series analysis is based on the assumption of stationarity. Stationarity implies the parameters are constant over time. Structural break occurs when at least one of the parameters changes at some date. Structural breaks can lead to huge forecasting errors and unreliability of the model. Modelling structure breaks is very popular in the literature of macroeconomics and finance. However, there are still too few publications about structural breaks in agricultural market. The goal of research is to identify structural breaks in wheat prices time series. A few structural break tests are appli

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Yusof, F., I. L. Kane, and Z. Yusop. "Structural break or long memory: an empirical survey on daily rainfall data sets across Malaysia." Hydrology and Earth System Sciences 17, no. 4 (2013): 1311–18. http://dx.doi.org/10.5194/hess-17-1311-2013.

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Abstract. A short memory process that encounters occasional structural breaks in mean can show a slower rate of decay in the autocorrelation function and other properties of fractional integrated I (d) processes. In this paper we employed a procedure for estimating the fractional differencing parameter in semiparametric contexts proposed by Geweke and Porter-Hudak (1983) to analyse nine daily rainfall data sets across Malaysia. The results indicate that all the data sets exhibit long memory. Furthermore, an empirical fluctuation process using the ordinary least square (OLS)-based cumulative su

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4

Yusof, F., and I. L. Kane. "Short memory or long memory: an empirical survey of daily rainfall data." Hydrology and Earth System Sciences Discussions 9, no. 10 (2012): 12271–91. http://dx.doi.org/10.5194/hessd-9-12271-2012.

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Abstract. A short memory process that encounters occasional structural breaks in mean can show a slower rate of decay in the autocorrelation function and other properties of fractional integrated I (d) processes. In this paper we employed a procedure for estimating the fractional differencing parameter in semi parametric contexts proposed by Geweke and Porter-Hudak to analyze nine daily rainfall data sets across Malaysia. The results indicate that all the data sets exhibit long memory. Furthermore, an empirical fluctuation process using the Ordinary Least Square (OLS) based cumulative sum (CUS

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5

Nunes, Luis C., Chung-Ming Kuan, and Paul Newbold. "Spurious Break." Econometric Theory 11, no. 4 (1995): 736–49. http://dx.doi.org/10.1017/s0266466600009713.

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A quasi-maximum likelihood estimator of the break date is analyzed. Consistency of the estimator is demonstrated under very general conditions, provided that the data-generating process is not integrated. However, the asymptotic distribution of the estimator is quite different for time series that are integrated of order one. In that case, when there is no break, the analyst can be spuriously led to the estimation of a break near the middle of the time series.

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6

Skrobotov, Anton. "Time series forecasting under structural breaks." Applied Econometrics 76, no. 4 (2024): 120–39. https://doi.org/10.22394/1993-7601-2024-76-120-139.

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In this paper, we overview the forecasting methods in the presence of structural breaks. Methods for selecting a forecast window that includes the break date, weighted average methods of pre- and post-break estimators, and averaging-based methods are discussed. The considered methods are compared in terms of predictive power using Russian macroeconomic time series. The results demonstrate the superiority of forecasts that take into account the presence of break.

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7

Muhammad Aslam, Atiq-ur-Rehman, Amada, and Ruqia Naz. "Comparing of Unit Root with and without Structural Breaks: A Monte Carlo Evaluation." Indus Journal of Social Sciences 1, no. 01 (2023): 23–34. https://doi.org/10.59075/ijss.v1i01.22.

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Background: The unit root became the most important feature that directed to the construction of new time series econometrics. Objectives: The study of time series structural breaks was a specific area of unit root research. Methods: Conventional procedures assume the break and apply a test accordingly. This leads to identification of spurious breaks, and therefore biased results, Lee and Strazicich, (2001). Results: We suggust an alternative strategy where we propose to test for structural breaks before applying unit root test. The debates of Structural breaks in unit root testing starts with

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8

Wang, Huijun, and Jianqi Sun. "Variability of Northeast China river break-up date." Advances in Atmospheric Sciences 26, no. 4 (2009): 701–6. http://dx.doi.org/10.1007/s00376-009-9035-1.

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Isiaka, Muideen, Modinat Ogunmolu, Lukuman Lamidi, and Saheed Ogunmolu. "Impact of Covid-19 on the Performance of The Nigeria`s Stock Market." Izvestiya Journal of the University of Economics - Varna 65, no. 3 (2021): 294–308. http://dx.doi.org/10.36997/ijuev2021.65.3.294.

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This study identifies the structural break date in the series of All Share Index (ASI) of the Nigeria’s capital market using innovational outlier methodology with the Augmented Dickey-Fuller unit root with structural break test. The study also examines the descriptive characteristics and model structure of ASI before and after the identified break date using ARIMA methodology. It uses daily data of ASI from November 27, 2018 to November 24, 2020. The results indicate that the break date is March 6, 2020. The mean results decreased after the break. The series before the break follows ARIMA (3,1

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10

Amanda, Sylvia, Aiza Nabilla Arifputri, Dimas Satrio Wijaksono, and Fiqie Lavani Melano. "Implementasi Pengelolaan Iklan dalam Karnaval SCTV (Pada Tayangan Commercial Break Produk Bejo Jahe Merah)." Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) 8, no. 3 (2024): 680–88. http://dx.doi.org/10.35870/jtik.v8i3.2184.

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Television is the main medium for conveying marketing messages to the public. Managing advertisements during commercial breaks is very important to increase the attractiveness of the message to be conveyed to the audience. Through the SCTV Carnaval program, it has become one of the routine programs held every year with high appeal in the community. Therefore, commercial breaks are needed to support the SCTV Carnaval program. Through the work design “Implementation of Advertising Management in the SCTV Carnaval (On Commercial Break Bejo Jahe Merah Product)”. The author implements commercial bre

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11

Liu, Mingyang, Yinan Wang, Zhenxiang Xing, Xinlei Wang, and Qiang Fu. "Study on Forecasting Break-up Date of River Ice in Heilongjiang Province Based on LSTM and CEEMDAN." Water 15, no. 3 (2023): 496. http://dx.doi.org/10.3390/w15030496.

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In spring, rivers at middle and high latitudes in the Northern Hemisphere are prone to ice jams, which threaten the safety of hydraulic structures in rivers. Heilongjiang Province is located on the highest latitude in China, starting at 43°26′ N and reaching 53°33′ N. Rivers in Heilongjiang Province freeze in winter and break up in spring. Forecasting the break-up date of river ice accurately can provide an important reference for the command, dispatch, and decision-making of ice flood preventing and shipping. Based on the observed break-up date series of river ice from seven representative hy

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12

Harvey, David I., and Stephen J. Leybourne. "Break Date Estimation for Models with Deterministic Structural Change." Oxford Bulletin of Economics and Statistics 76, no. 5 (2013): 623–42. http://dx.doi.org/10.1111/obes.12037.

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13

Kurozumi, Eiji, and Anton Skrobotov. "Confidence Sets for the Break Date in Cointegrating Regressions." Oxford Bulletin of Economics and Statistics 80, no. 3 (2017): 514–35. http://dx.doi.org/10.1111/obes.12223.

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14

Chen, Liang. "Estimating the common break date in large factor models." Economics Letters 131 (June 2015): 70–74. http://dx.doi.org/10.1016/j.econlet.2015.03.037.

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15

Skrobotov, Anton. "Structural breaks in cointegration models: Multivariate case." Applied Econometrics 64, no. 4 (2021): 83–106. http://dx.doi.org/10.22394/1993-7601-2021-64-83-106.

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This review discusses methods of testing for a cointegration rank in a multivariate time series in the presence of structural breaks. The review covers both the methods with known and unknown break date. Multiple breaks are also considered. The issues of testing for cointegration with a possible change in the cointegration rank over time are discussed separately.

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16

Harvey, David I., Stephen J. Leybourne, and A. M. Robert Taylor. "Unit Root Testing under a Local Break in Trend using Partial Information on the Break Date*." Oxford Bulletin of Economics and Statistics 76, no. 1 (2013): 93–111. http://dx.doi.org/10.1111/obes.12013.

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17

Apsîte, Elga, Didzis Elferts, and Inese Latkovska. "Long-term changes of Daugava River ice phenology under the impact of the cascade of hydro power plants." Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences. 70, no. 2 (2016): 71–77. http://dx.doi.org/10.1515/prolas-2016-0012.

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Abstract This paper presents the results of the study of long-term changes of Daugava River ice phenology, i.e. the freeze-up date, the break-up date, and the duration of ice cover from 1919/1920 to 2011/2012, under the impact of the cascade of hydro power plants. The long-term changes of ice phenology were determined by global climate warming at the turn of the 20th and the 21st centuries and anthropogenic activities after the year 1939. The Mann-Kendall test showed that the ice freeze-up date has a positive trend, while the ice break-up date and the duration of ice cover had negative trends.

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18

Kurozumi, Eiji, and Yohei Yamamoto. "Confidence sets for the break date based on optimal tests." Econometrics Journal 18, no. 3 (2015): 412–35. http://dx.doi.org/10.1111/ectj.12055.

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19

Chang, Seong Yeon. "Bootstrap confidence intervals for a break date in linear regressions." Journal of Statistical Computation and Simulation 90, no. 13 (2020): 2438–54. http://dx.doi.org/10.1080/00949655.2020.1777998.

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20

Susorova, Irina, Brent Stephens, and Benjamin Skelton. "The Effect of Balcony Thermal Breaks on Building Thermal and Energy Performance: Field Experiments and Energy Simulations in Chicago, IL." Buildings 9, no. 9 (2019): 190. http://dx.doi.org/10.3390/buildings9090190.

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A common envelope performance problem in buildings is thermal bridging through balcony slab connections, which can be improved with the use of commercially available thermal break products. Several prior studies have used simulation-based and/or hot box test apparatus approaches to quantify the likely effect of balcony thermal breaks on effective thermal resistance of building enclosures. However, in-situ measurements of thermal performance in real buildings remain limited to date. This study uses a combination of field measurements and models to investigate the effects of installing balcony t

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21

Liu, Zhi, Hongwei Han, Yu Li, Enliang Wang, and Xingchao Liu. "Forecasting the River Ice Break-Up Date in the Upper Reaches of the Heilongjiang River Based on Machine Learning." Water 17, no. 3 (2025): 434. https://doi.org/10.3390/w17030434.

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Ice-jam floods (IJFs) are a significant hydrological phenomenon in the upper reaches of the Heilongjiang River, posing substantial threats to public safety and property. This study employed various feature selection techniques, including the Pearson correlation coefficient (PCC), Grey Relational Analysis (GRA), mutual information (MI), and stepwise regression (SR), to identify key predictors of river ice break-up dates. Based on this, we constructed various machine learning models, including Extreme Gradient Boosting (XGBoost), Backpropagation Neural Network (BPNN), Random Forest (RF), and Sup

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22

Thomas, Linda. "VOICES - Put this date in your diary and take a break." Nursing Standard 20, no. 20 (2006): 34. http://dx.doi.org/10.7748/ns.20.20.34.s40.

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23

Harvey, David I., Stephen J. Leybourne, and A. M. Robert Taylor. "SIMPLE, ROBUST, AND POWERFUL TESTS OF THE BREAKING TREND HYPOTHESIS." Econometric Theory 25, no. 4 (2009): 995–1029. http://dx.doi.org/10.1017/s0266466608090385.

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In this paper we develop a simple procedure that delivers tests for the presence of a broken trend in a univariate time series that do not require knowledge of the form of serial correlation in the data and are robust as to whether the shocks are generated by an I(0) or an I(1) process. Two trend break models are considered: the first holds the level fixed while allowing the trend to break, while the latter allows for a simultaneous break in level and trend. For the known break date case, our proposed tests are formed as a weighted average of the optimal tests appropriate for I(0) and I(1) sho

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24

Shuter, B. J., C. K. Minns, and S. R. Fung. "Empirical models for forecasting changes in the phenology of ice cover for Canadian lakes." Canadian Journal of Fisheries and Aquatic Sciences 70, no. 7 (2013): 982–91. http://dx.doi.org/10.1139/cjfas-2012-0437.

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In situ and remote-sensed data on freeze-up and break-up dates for lakes spread over much of Canada were used to develop and validate simple regression models linking lake ice phenology to climatic conditions and lake morphometry. The primary variables affecting fall freeze-up dates were the fall date when 30-day smoothed air temperatures reached 0 °C and lake mean depth; the primary variables affecting spring break-up date were the spring date when 30-day smoothed air temperatures reached 0 °C, solar elevation on that date, and the number of days over winter when 30-day smoothed air temperatu

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25

Nuñez, Humberto, and Daniel H. Díaz. "IMPROVEMENT OF PECAN BUD BREAK BY APPLICATION OF HYDROGEN CYNAMIDE." HortScience 25, no. 9 (1990): 1107e—1107. http://dx.doi.org/10.21273/hortsci.25.9.1107e.

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Pecan has an irregular bud break under mild climate areas, difficulting pollination and reducing yields, particularly in seasons when chilling accumulation is low and when only 50% of buds open. Hydrogen cyanamide (H2C N2) at 1, 2, 4% alone or with mineral oil (MO) at 2, 4% were evaluated for their effect on lateral bud opening of `Wichita' pecans, spraying branches on january 25 or february 8. H2C N2 and its mixtures with MO advances bud break 25 and 18 days as compared to control on first and second date application respectively; by march 20th shoots on applied branches had 8-14 cm lenght wh

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26

Mohd Noh, Norshela, Arifah Bahar, and Zaitul Marlizawati Zainuddin. "Forecasting model for crude oil price with structural break." Malaysian Journal of Fundamental and Applied Sciences 13, no. 4-1 (2017): 421–24. http://dx.doi.org/10.11113/mjfas.v13n4-1.861.

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Nowadays, in unstable economic environment, oil refining company is facing fluctuating crude oil price that causes unstable profit margin. Fluctuating crude oil price leads to difficulty in forecasting raw material procurement. Inaccurate forecast leads to inefficient decision making in optimizing refining company profit margin. In order to overcome an inaccurate in forecasting raw material procurement, an appropriate study of forecasting model is needed. Thus the objective of this study is to model fluctuating crude oil price based on geometric Brownian motion and mean reverting Ornstein-Uhle

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27

Carrion-i-Silvestre, Josep Lluís, Dukpa Kim, and Pierre Perron. "GLS-BASED UNIT ROOT TESTS WITH MULTIPLE STRUCTURAL BREAKS UNDER BOTH THE NULL AND THE ALTERNATIVE HYPOTHESES." Econometric Theory 25, no. 6 (2009): 1754–92. http://dx.doi.org/10.1017/s0266466609990326.

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Perron (1989, Econometrica 57, 1361–1401) introduced unit root tests valid when a break at a known date in the trend function of a time series is present. In particular, they allow a break under both the null and alternative hypotheses and are invariant to the magnitude of the shift in level and/or slope. The subsequent literature devised procedures valid in the case of an unknown break date. However, in doing so most research, in particular the commonly used test of Zivot and Andrews (1992, Journal of Business & Economic Statistics 10, 251–270), assumed that if a break occurs it does so o

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Wright, Jonathan H. "Testing for a Structural Break at Unknown Date with Long-memory Disturbances." Journal of Time Series Analysis 19, no. 3 (1998): 369–76. http://dx.doi.org/10.1111/1467-9892.00097.

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Badiora, Adewumi, and Oyinloluwa B. Adebara. "Residential property and break-ins." Property Management 38, no. 3 (2019): 437–55. http://dx.doi.org/10.1108/pm-02-2019-0009.

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Purpose The purpose of this paper is to examine realtors and residents’ perceptions of the effectiveness of Crime Prevention through Environmental Design (CPTED) in reducing night-time and daytime break-ins in residential estate. Design/methodology/approach The study adopted case study methods. Two residential estates (one at inner and the other at outer city) were selected as cases of the study. Data were collected from two sets of respondents: realtors and tenants. In the realtors’ cluster, all real estate and property development companies were sampled since the population is very small. Sy

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., Babita, and Vishal S. Rana. "Effect of Dormex on Bud-Break, Flowering and Yield in Kiwifruit Cv. Hayward in Mid-Hill Zone of Himachal Pradesh." Journal of Horticultural Sciences 8, no. 1 (2013): 47–50. http://dx.doi.org/10.24154/jhs.v8i1.333.

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The present investigation was carried out on eight year old Hayward kiwifruit vines to study the effect of Dormex on bud-break, flowering and yield. Treatments included spray of Dormex (2&4%) on February 10th, 20th and March 2nd. Application of 4% Dormex on 10th February, i.e., 40 days prior to anticipated date of natural bud-break, resulted in advancement of bud break and floral-bud emergence by seven days, fruit-set by five days and increase in flowering period by five days.

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Yamamoto, Yohei. "A modified confidence set for the structural break date in linear regression models." Econometric Reviews 37, no. 9 (2016): 974–99. http://dx.doi.org/10.1080/00927872.2016.1178892.

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Wong, Tak-Yee, Dong-Her Shih, Sung-Yi Tsai, and Chiu-Yi Lee. "DIFFERENTIATING PHYSIOLOGICAL EFFECTS OF MIDTERM BREAK IN A PROLONGED ONLINE GAME PLAYING." Biomedical Engineering: Applications, Basis and Communications 25, no. 06 (2013): 1350057. http://dx.doi.org/10.4015/s1016237213500579.

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With the development of widespread Internet access, online game playing has become a popular event. As a result, more attention is being paid to the potentially negative physical and psychological effects on prolonged computer worker or online game player. To date, related physical problems that have been identified include fatigue, physical pain, insomnia, epileptic seizures, and even sudden death. Therefore, midterm break may be necessary for an online game player. This study tries to differentiate the physiological effects of two groups, with and without a midterm break, during a prolonged

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33

Elliott, Graham, and Ulrich K. Müller. "Confidence sets for the date of a single break in linear time series regressions." Journal of Econometrics 141, no. 2 (2007): 1196–218. http://dx.doi.org/10.1016/j.jeconom.2007.02.001.

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SvedbergOpen. "Exogenous Dormancy-Breaking Compounds on Flowering Behavior, Yield, Fruit Quality and Some Chemical Constituents of "Anna" Apple Trees." International Journal of Agricultural Sciences and Technology 2, no. 2 (2022): 31–41. https://doi.org/10.51483/IJAGST.2.2.2022.31-41.

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The role of dormex, mineral oil, potassium nitrate, calcium nitrate and thiourea in the acceleration of dormancy breaking in buds of "Anna" apple (<i>Malus sylvestris</i>, Mill) variety and their effects on metabolic changes in the contents of total  chlorophyll , total carbohydrates, total protein, nitrogen, phosphorous and potassium in leaves and the contents of Total Soluble Solids (TSS), TSS/acid ratio, vitamin C, water content %, total free amino acids, total carbohydrates, total sugars and reducing sugars in fruits during bud break were assessed. The efficiency of bud break by these

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35

Elnaid, Abduati, and N. Z. Noriman. "Date Seeds Fiber Reinforced Low-Density Polyethylene: Effect of Stearic Acid on its Mechanical and Morphological Characteristics." Materials Science Forum 1021 (February 2021): 290–98. http://dx.doi.org/10.4028/www.scientific.net/msf.1021.290.

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The effect of different content of steric acid (3, 6 and 9 wt.%) on the mechanical properies (tensile, flexural and impact properties) and morphology of linear low-density polyethylene / date seeds (LLDPE/DS) composites were evaulated in this research. The composites were produced by using extrusion followed by injuction molding process. Results presented that the addition of steric acid at 3 wt.% to the composite has shown highest tensile strength and elongation at break as compared to other treated samples. This is due to the improvement on the fiber surface in presence of SA. However, the t

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Gianfagna, T. J., and S. A. Mehlenbacher. "Importance of Heat Requirement for Bud Break and Time of Flowering in Apple." HortScience 20, no. 5 (1985): 909–11. http://dx.doi.org/10.21273/hortsci.20.5.909.

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Abstract Six genotypes of apple with a range in bloom date of 18 days were used to determine the contribution of the postdormant heat requirement to time of flowering. Spurs containing flower buds were collected after the chilling requirement had been satisfied but before detectable bud growth had begun, and forced at 10°, 15°, or 20°C. Bud development occurred on all samples at 20°, although at different rates which were correlated directly with field bloom date. At 10°, the genotypes fell into 2 groups. The first, consisting of the 3 earliest flowering selections, developed more slowly at 10

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Jevrejeva, Svetlana, and Matti Leppäranta. "Ice Conditions along the Estonian Coast in a Statistical View." Hydrology Research 33, no. 2-3 (2002): 241–62. http://dx.doi.org/10.2166/nh.2002.0025.

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The paper presents the results from analysis of long-term (100-year) time series of freezing, fast ice formation, disappearance of fast ice, break-up and ice thickness for eight stations situated along the Estonian coast in the Gulf of Finland and Gulf of Riga. Most of the data have not been published yet. Basic statistics: average, standard deviation, maximum, minimum and frequency histograms are given. On average ice has formed in the Gulf of Finland three weeks later compared with the Gulf of Riga. The range of variation of the freezing date is very large, 3-4 months, with maximum value of

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38

Hallerbäck, Sofia, Laurie S. Huning, Charlotte Love, et al. "Climate warming shortens ice durations and alters freeze and break-up patterns in Swedish water bodies." Cryosphere 16, no. 6 (2022): 2493–503. http://dx.doi.org/10.5194/tc-16-2493-2022.

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Abstract. Increasing air temperatures reduce the duration of ice cover on lakes and rivers, threatening to alter their water quality, ecology, biodiversity, and physical, economical and recreational function. Using a unique in situ record of freeze and break-up dates, including records dating back to the beginning of the 18th century, we analyze changes in ice duration (i.e., first freeze to last break-up), freeze and break-up patterns across Sweden. Results indicate a significant trend in shorter ice duration (62 %), later freeze (36 %) and earlier break-up (58 %) dates from 1913–2014. In the

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Yule, A. J., and D. G. Salters. "On the Distance Required to Atomize Diesel Sprays Injected from Orifice-Type Nozzles." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 209, no. 3 (1995): 217–26. http://dx.doi.org/10.1243/pime_proc_1995_209_205_02.

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Conductivity probe measurements, using ranges of nozzles, liquid properties and gas densities, have revealed more extensive and reliable information on the break-up process of diesel sprays than has been published to date. The spray generated from a single-hole orifice-type nozzle has an incompletely atomized break-up length which typically extends at least 100 hole diameters downstream. The physical structure of this break-up zone varies, depending on the liquid properties and both initial and boundary conditions, from that of a central liquid column, with outer drops and ligaments, to, more

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40

Liston, Glen E., and Dorothy K. Hall. "Sensitivity of lake freeze-up and break-up to climate change: a physically based modeling study." Annals of Glaciology 21 (1995): 387–93. http://dx.doi.org/10.3189/s0260305500016116.

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To assess the response of lake Freeze-up and break-up dates to changes in atmospheric forcing, a physically based computational model of the coupled lake, lake-ice, snow and atmosphere system has been developed. Model performance is validated using meteorological and lake-ice observations from Great Slave Lake in northern Canada (1991/92) and St Mary Lake in Glacier National Park, Montana, (1992/93). Model integrations with modified atmospheric forcing indicate that air-temperature changes of ±4°C can delay or speed up the freeze-up and break-up dates by as much as 4 weeks for St Mary Lake, an

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Liston, Glen E., and Dorothy K. Hall. "Sensitivity of lake freeze-up and break-up to climate change: a physically based modeling study." Annals of Glaciology 21 (1995): 387–93. http://dx.doi.org/10.1017/s0260305500016116.

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To assess the response of lake Freeze-up and break-up dates to changes in atmospheric forcing, a physically based computational model of the coupled lake, lake-ice, snow and atmosphere system has been developed. Model performance is validated using meteorological and lake-ice observations from Great Slave Lake in northern Canada (1991/92) and St Mary Lake in Glacier National Park, Montana, (1992/93). Model integrations with modified atmospheric forcing indicate that air-temperature changes of ±4°C can delay or speed up the freeze-up and break-up dates by as much as 4 weeks for St Mary Lake, an

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Liu, Yong, Huopo Chen, Huijun Wang, and Yubao Qiu. "The Impact of the NAO on the Delayed Break-Up Date of Lake Ice over the Southern Tibetan Plateau." Journal of Climate 31, no. 22 (2018): 9073–86. http://dx.doi.org/10.1175/jcli-d-18-0197.1.

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The changing characteristics of lake ice phenology over the Tibetan Plateau (TP) are investigated using historical satellite retrieved datasets during 2002–15 in this study. The results indicate that the freezing process mainly starts in December, and the ice melting process generally occurs in April for most lakes. However, the changes in lake ice phenology have varied depending on the location in recent years, with delayed break-up dates and prolonged ice durations in the southern TP, but no consistent changes have occurred in the lakes in the northern TP. Further analysis presents a close c

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Bae, Jinho. "A Study on Structural Break in Income Inequality of Taiwan." Asia Europe Perspective Association 15, no. 4 (2018): 21–41. https://doi.org/10.31203/aepa.2018.15.4.002.

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This paper investigates structural break in the income inequality series of Taiwan. A two-state Markov regime-switching model is used where time trend is allowed to make one time permanent shift from one state to the other at an unknown change point. For the income quintile share ratio and the Gini coefficient over the period of 1978-2015, we find that 1) the break date is the year 2001 for both of the income quintile share ratio and the Gini coefficient, 2) the period before the break which is 1978-2000 is identified as a state where the two income inequality measures have a positive time tre

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Posch, Christoph, Jakob Abermann, and Tiago Silva. "Lake ice break-up in Greenland: timing and spatiotemporal variability." Cryosphere 18, no. 4 (2024): 2035–59. http://dx.doi.org/10.5194/tc-18-2035-2024.

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Abstract. Synthetic aperture radar (SAR) data from the Sentinel-1 (S1) mission with its high temporal and spatial resolution allows for an automated detection of lake ice break-up timings from surface backscatter differences across south (S), southwest (SW), and northwest (NW) Greenland (<71° N latitude) during the period 2017 to 2021. Median break-up dates of the 563 studied lakes range between 8 June and 10 July, with the earliest being in 2019 and the latest in 2018. There is a strong correlation between the break-up date and elevation, while a weak relationship with latitude and lake ar

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Liu, Chong, Huabing Huang, Fengming Hui, Ziqian Zhang, and Xiao Cheng. "Fine-Resolution Mapping of Pan-Arctic Lake Ice-Off Phenology Based on Dense Sentinel-2 Time Series Data." Remote Sensing 13, no. 14 (2021): 2742. http://dx.doi.org/10.3390/rs13142742.

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The timing of lake ice-off regulates biotic and abiotic processes in Arctic ecosystems. Due to the coarse spatial and temporal resolution of available satellite data, previous studies mainly focused on lake-scale investigations of melting/freezing, hindering the detection of subtle patterns within heterogeneous landscapes. To fill this knowledge gap, we developed a new approach for fine-resolution mapping of Pan-Arctic lake ice-off phenology. Using the Scene Classification Layer data derived from dense Sentinel-2 time series images, we estimated the pixel-by-pixel ice break-up end date informa

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Perona, Paolo. "Bostwick Degree and Rheological Properties: an Up-to-date Viewpoint." Applied Rheology 15, no. 4 (2005): 218–29. http://dx.doi.org/10.1515/arh-2005-0013.

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Abstract The correlation between the Bostwick degree and the static rheological properties of yield stress food fuids is first revisited and then reformulated in this work. The role of the yield stress in the free surface flow of the Bost-wick test is studied using dimensional analysis. Results from experiments on 48 different samples of yield stress fluids are considered and included to check the adequacy of the proposed correlation. Asymptotic dynamic behaviour is also presented and discussed as a mechanism of complete self similarity with respect of the dimensionless time. This approach wou

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Mach, Vaclav, Ales Mizera, Pavel Stoklasek, Michaela Karhankova, Milan Adamek, and Martin Bednarik. "Development of a Contact Glass-Break Detector for the Highest Security Level." Sensors 24, no. 1 (2023): 97. http://dx.doi.org/10.3390/s24010097.

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The main object of this research was to develop a security system to evaluate the intrusion into an object through a glass pane. More specifically, this study deals with sensing and evaluating signals from a contact glass-break detector, which is part of an intruder alarm system. Each alarm detector in an alarm system must accomplish certain security level requirements that strictly describe the requirements for the area of use and the detector’s reliability. To date, no contact glass-break detector has been developed and fully tested to meet the stringent requirements of the highest security

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Solar, A., M. Solar, Z. Črepinsek, and F. Stampar. "THE INFLUENCE OF INCREASING AIR TEMPERATURES ON BUD BREAK DATE IN COMMON WALNUT (JUGLANS REGIA L.)." Acta Horticulturae, no. 803 (November 2008): 147–54. http://dx.doi.org/10.17660/actahortic.2008.803.18.

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Su, Lei, Tao Che, and Liyun Dai. "Variation in Ice Phenology of Large Lakes over the Northern Hemisphere Based on Passive Microwave Remote Sensing Data." Remote Sensing 13, no. 7 (2021): 1389. http://dx.doi.org/10.3390/rs13071389.

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Ice phenology data of 22 large lakes of the Northern Hemisphere for 40 years (1979–2018) have been retrieved from passive microwave remote sensing brightness temperature (Tb). The results were compared with site-observation data and visual interpretation from Moderate Resolution Imaging Spectroradiometer (MODIS) surface reflectivity products images (MOD09GA). The mean absolute errors of four lake ice phenology parameters, including freeze-up start date (FUS), freeze-up end date (FUE), break-up start date (BUS), and break-up end date (BUE) against MODIS-derived ice phenology were 2.50, 2.33, 1.

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Osorio-Acosta, Guadalupe, Jorge Siller-Cepeda, and Jorge Avlos. "Date and Intensity of Topping before Spur Pruning Alters Budbreak of Primary Buds in `Flame Seedless' Grapevines." HortScience 31, no. 4 (1996): 683b—683. http://dx.doi.org/10.21273/hortsci.31.4.683b.

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In the Sonoran desert, vines are forced to break with early pruning and cyanamide application. Usually topping of the canes (leaving canes 50 cm long) is done on 10 Dec. to facilitate spur pruning and cyanamide application after 20 Dec. However, budbreak is irregular over the years. There is no reason why date and intensity of topping is done that way. The objective of this work was to evaluate budbreak at different dates and intensity of topping. Five-year-old `Flame Seedless' vines were prune topped on three dates (21 Nov., 1 Dec., and 11 Dec.) and at three different intensities (leaving can

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