Relevant bibliographies by topics / Variable-distance - time

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Variable-distance - time'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Variable-distance - time"

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Iles, Kim, and David Hugh Harrison Carter. "“Distance-variable” estimators for sampling and change measurement." Canadian Journal of Forest Research 37, no. 9 (2007): 1669–74. http://dx.doi.org/10.1139/x07-029.

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The estimation procedure described is a simple technique that is applicable to virtually any plot-based sampling method and virtually any measured variable. It can be retrofitted to any existing fixed or variable plot over time by simply knowing the distance from the sampled object to the sample point. These estimators are illustrated for sampling over time as the plot size changes. An example is variable-plot sampling in forestry. Traditional estimates from sample plots can be geometrically viewed as a series of “disc shapes” where the same estimate is used for an object no matter how near th
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Samantaray, S. R., and P. K. Dash. "Transmission line distance relaying using a variable window short-time Fourier transform." Electric Power Systems Research 78, no. 4 (2008): 595–604. http://dx.doi.org/10.1016/j.epsr.2007.05.005.

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Zhang, Jinqin, Gang Liu, Jiayun Huang, and Yaohui Zhang. "A Study on the Time Lag and Compensation of a Variable-Rate Fertilizer Applicator." Applied Engineering in Agriculture 37, no. 1 (2021): 43–52. http://dx.doi.org/10.13031/aea.13855.

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HighlightsA lag time detection system for variable-rate fertilization was developed.The lag time of a variable-rate fertilizer applicator was obtained and analyzed.A sigmoid equation was fitted to the data of rate change transition tests.The planar coordinates-based lag distance compensation method (LDCM) could reduce the lag distance effectively.Abstract. The location accuracy of fertilizer application is an essential aspect of the performance of variable-rate fertilizer applicators. The lag time of the fertilization system is an important cause of fertilizer rate transition lags. In order to
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Hu, Ping, Chuan Huang, and Jing Lian. "Efficient dynamic programming in economical cruise control under real-time traffic situations." Transactions of the Institute of Measurement and Control 42, no. 11 (2020): 2044–56. http://dx.doi.org/10.1177/0142331220904552.

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In this paper, dynamic programming (DP) economical cruise control algorithms under discrete distance and discrete time strategies are designed to improve battery electric vehicle (BEV) energy consumption and riding comfort. In our experiment, energy consumption of constant-speed driving is reduced by up to 21.6% using the optimum velocity profiles from discrete distance DP. ‘Variable step length and boundary conditions’ are utilized to reduce discrete distance DP processing time by 90.8% with no effect on accuracy. Under discrete time DP, position is introduced as an additional variable, so di
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Arellano Ferro, A., I. H. Bustos Fierro, J. H. Calderón, and J. A. Ahumada. "NGC 1261: A TIME-SERIES VI STUDY OF ITS VARIABLE STARS." Revista Mexicana de Astronomía y Astrofísica 55, no. 2 (2019): 337–50. http://dx.doi.org/10.22201/ia.01851101p.2019.55.02.18.

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Time-series VI CCD photometry of the globular cluster NGC 1261 is employed to study its variable star population. A membership analysis of most variables based on Gaia DR2 proper motions and colours was performed prior to the estimation of the mean cluster distance and metallicity. The light curves of the member RR Lyrae were Fourier decomposed to calculate their individual values of distance, [Fe/H], radius and mass. The I band P-L for RR Lyrae stars was also employed. Our best estimates of the metallicity and distance of this Oo I cluster are [Fe/H]ZW =−1.42 ± 0.05 dex and d = 17.2 ± 0.4 kpc
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Ify, L. Nwaogazie, A. Akpan Henry, and Bovwe Oghenefejiri. "Evaluation of Methods for Determination of Dispersion Coefficient for Utu Etim-Ekpo River, Nigeria." Journal of Scientific Research & Reports 14, no. 2 (2017): 1–9. https://doi.org/10.9734/JSRR/2017/33645.

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This study was conducted to evaluate methods for the determination of the longitudinal dispersion coefficient of Utu Etim-Ekpo River. Rihodamine-B was used in the tracer dye study. The variable distance – variable time method of sample collection was adopted. The samples collected were immediately transferred to the laboratory for analysis. Three approaches were adopted for the computation of dispersion coefficient with respect to this study, namely: Leverspiel & Smith method; Agunwamba’s method; and Ojiako’s method, respectively. The first two methods are analytical while the third is num
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Pyke, GH, and HF Recher. "Estimated Forest Bird Densities by Variable Distance Point Counts." Wildlife Research 12, no. 2 (1985): 307. http://dx.doi.org/10.1071/wr9850307.

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During variable distance point counts a stationary observer records the species and distance for all birds detected during a fixed time interval. Such counts, repeated throughout the area of interest, can be used to estimate bird density so long as the following assumptions are made: (1) the distribution of birds is unaffected by the observer; (2) observers are certain of detecting near birds; (3) there is no error in measurement or estimation of distances; and (4) birds are stationary. Data collected during the present study indicated that at least two of these assumptions are not satisfied:
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Li, Hongchang, Fang Gao, Hehe Niu, and Fang Chang. "Application of Variable Distance Photoelectric Sensor in Precision Automatic Sowing and Fertilization." Journal of Nanoelectronics and Optoelectronics 15, no. 6 (2020): 707–13. http://dx.doi.org/10.1166/jno.2020.2790.

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In order to realize the real-time monitoring of precision automatic seeding and fertilization, a monitoring system of precision automatic seeding and fertilization integrated machine based on variable distance photoelectric sensor is designed. In this system, STM32F103R8T6 single chip microcomputer hardware system is used as the lower computer to judge the running state of the machine. Through Modbus protocol, the received information is transmitted to the upper computer interface of MCGSTPC touch screen for real-time display. In the laboratory test, the designed seed metering device and ferti
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Nguyen, Kien, and Nguyen Hung. "The reverse total weighted distance problem on networks with variable edge lengths." Filomat 35, no. 4 (2021): 1333–42. http://dx.doi.org/10.2298/fil2104333n.

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We address the problem of reducing the edge lengths of a network within a given budget so that the sum of weighted distances from each vertex to others is minimized. We call this problem the reverse total weighted distance problem on networks. We first show that the problem is NP-hard by reducing the set cover problem to it in polynomial time. Particularly, we develop a linear time algorithm to solve the problem on a tree. For the problem on cycles, we devise an iterative approach without mentioning the exact complexity. Additionally, if the cycle has uniform edge lengths, we can prove that th
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Ma, Yinglong, Xiaolan Zhang, and Ke Lu. "A graph distance based metric for data oriented workflow retrieval with variable time constraints." Expert Systems with Applications 41, no. 4 (2014): 1377–88. http://dx.doi.org/10.1016/j.eswa.2013.08.035.

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Dissertations / Theses on the topic "Variable-distance - time"

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Nowakowski, Samuel. "Détection de défauts dans les séries temporelles." Nancy 1, 1989. http://www.theses.fr/1989NAN10074.

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Utilisation des calculs de distances pour résoudre des problèmes rencontrés pour les tests de détection de changements tels que le test du rapport de vraisemblance généralisé. Expérimentation de la méthode de la variable instrumentale
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Signorelli, Shirley Ferreira. "Um ambiente virtual para o ensino semipresencial de funções de uma variável real: design e análise." Pontifícia Universidade Católica de São Paulo, 2007. https://tede2.pucsp.br/handle/handle/11284.

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Made available in DSpace on 2016-04-27T16:58:33Z (GMT). No. of bitstreams: 1 Shirley Ferreira Signorelli.pdf: 4346228 bytes, checksum: a37d23996da101385ce1df722242946c (MD5) Previous issue date: 2007-10-31<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The purpose of this investigation was the elaboration and implementation of a virtual environment for a part time distance course for students of the Computer Science and Systems of Information. The students failed in a former discipline that approaches topics of elementary Mathematics. It happened in a particular university
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Books on the topic "Variable-distance - time"

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Bove, Vincenzo, Chiara Ruffa, and Andrea Ruggeri. Composing Peace. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198790655.001.0001.

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The book explores how diversity in United Nations’ peace mission composition affects peacekeeping effectiveness. It identifies four key dimensions of composition: Blue Helmets’ field diversity, top mission leadership diversity (between Force Commander and Special Representative of the Secretary General), vertical leadership distance (Leadership-Blue Helmets), and horizontal distance with the local population. Each dimension of diversity of mission is measured as linguistic, geographical, and religious distance. Our book conceptualizes original mechanisms—i. resolve commitment; ii. informative
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Zydroń, Tymoteusz. Wpływ systemów korzeniowych wybranych gatunków drzew na przyrost wytrzymałości gruntu na ścinanie. Publishing House of the University of Agriculture in Krakow, 2019. http://dx.doi.org/10.15576/978-83-66602-46-5.

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The aim of the paper was to determine the influence of root systems of chosen tree species found in the Polish Flysch Carpathians on the increase of soil shear strength (root cohesion) in terms of slope stability. The paper's goal was achieved through comprehensive tests on root systems of eight relatively common in the Polish Flysch Carpathians tree species. The tests that were carried out included field work, laboratory work and analytical calculations. As part of the field work, the root area ratio (A IA) of the roots was determined using the method of profiling the walls of the trench at a
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Book chapters on the topic "Variable-distance - time"

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Jiménez, Felipe, and Juan Ruiz. "Automatic Sight Distance Estimation for Overtaking Maneuvers." In Proceedings of the XV Ibero-American Congress of Mechanical Engineering. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-38563-6_22.

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AbstractNew assistance systems, as a preliminary step towards automated driving, require a complete knowledge of the environment. To do this, perception sensors are used, but positioning on digital maps is also a valuable tool as a secondary sensor. In this sense, digital maps must contain increasingly greater precision and detail. A variable that is not usually included is the sight distance, which is conditioned by static and dynamic elements. This paper presents a method for its estimation considering the road geometry and other elements that can interfere with driver or sensors vision such
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Carpita, Maurizio, and Rodolfo Metulini. "Modelling the spatio-temporal dynamic of traffic flows with gravity models and mobile phone data." In Proceedings e report. Firenze University Press, 2021. http://dx.doi.org/10.36253/978-88-5518-461-8.19.

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The analysis of origin-destination traffic flows may be useful in many contexts of application (e.g., urban planning, tourism economics) and have been commonly studied through the gravity model, which states that flows are proportional to ''masses" of both origin and destination, and inversely proportional to distance between them. Using data on the flow of mobile phone SIM among different aree di censimento, recorded hourly basis for several months and provided by FasterNet in the context of MoSoRe project, in this work we characterize and model the dynamic of such flows over the time in the
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Braekers, Kris, and Gerrit K. Janssens. "A Fuzzy Measure of Vulnerability for the Optimization of Vehicle Routing Problems With Time Windows." In Optimization Techniques for Problem Solving in Uncertainty. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-5091-4.ch007.

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In a vehicle routing problem (VRP) with time windows, the start of service needs to take place within the customer time window. Due to uncertainty on travel times, vehicles might arrive late at a customer's site. A VRP is mostly solved to minimize a total cost criterion (travel time, travel distance, fixed and variable vehicle costs). But the dispatcher might also take into consideration the risk of non-conformance with the service agreement to start service within the time window. Therefore, a measure of risk, called “vulnerability of a solution,” is developed to serve as a second criterion.
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Jovanovic Dolecek, Gordana. "Digital Filters." In Encyclopedia of Multimedia Technology and Networking, Second Edition. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-014-1.ch050.

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A signal is defined as any physical quantity that varies with changes of one or more independent variables, and each can be any physical value, such as time, distance, position, temperature, or pressure (Elali, 2003; Smith, 2002). The independent variable is usually referred to as “time”. Examples of signals that we frequently encounter are speech, music, picture, and video signals. If the independent variable is continuous, the signal is called continuous-time signal or analog signal, and is mathematically denoted as x(t). For discrete-time signals, the independent variable is a discrete vari
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R. Singh, Twinkle. "Study on Approximate Analytical Method with Its Application Arising in Fluid Flow." In Porous Fluids - Advances in Fluid Flow and Transport Phenomena in Porous Media. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97548.

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This chapter is about the, Variational iteration method (VIM); Adomian decomposition method and its modification has been applied to solve nonlinear partial differential equation of imbibition phenomenon in oil recovery process. The important condition of counter-current imbibition phenomenon as vi=−vn, has been considered here main aim, here is to determine the saturation of injected fluid Sixt during oil recovery process which is a function of distance ξ and time θ, therefore saturation Si is chosen as a dependent variable while xandt are chosen as independent variable. The solution of the p
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Wallace, Andrew M. "Three-Dimensional Laser Imaging in an Archaeological Context." In Images and Artefacts of the Ancient World. British Academy, 2005. http://dx.doi.org/10.5871/bacad/9780197262962.003.0010.

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This chapter discusses the strengths and weaknesses of techniques of 3D laser imaging based on time of flight and triangulation. Laser scanning by triangulation is a fully developed technology. Through this method, it is now possible to create faithful 3D datasets from a reasonable range of surface materials. However, laser scanning has some certain drawbacks, restricting their universal applicability. For surfaces with concavities or with intricate details, occlusion may occur due to the necessary separation of the viewpoint between the viewing camera and the laser projector. In addition, the
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Auyang, Sunny Y. "The Event Structure and the Spatio-temporal Structure: Local Fields." In How Is Quantum Field Theory Possible? Oxford University PressNew York, NY, 1995. http://dx.doi.org/10.1093/oso/9780195093445.003.0006.

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Abstract Going from classical mechanics to quantum field theory, the focus of physics changes from locomotion to dynamical interaction. The transformation brings interrelated changes in the basic material, dynamical, and spatial concepts. The primary form of matter changes from discrete mass points in empty space to continuous fields comprising discrete events. The primary dynamical concepts change from action-at-a-distance to coupling-on-the-spot, from external forces to interactions generated by the inter actants themselves. Unlike classical and nonrelativistic quantum mechanics, where spati
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Glass, Irvine I., and J. P. Sislian. "Transition Fronts." In Nonstationary Flows and Shock Waves. Oxford University PressOxford, 1994. http://dx.doi.org/10.1093/oso/9780198593881.003.0003.

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Abstract The various shock-wave phenomena described in the previous section involve considerable spatial and time-dependent changes in velocity, density, pressure, and temperature in the continuum in which they take place and, therefore, they may be studied by the methods of nonstationary gas dynamics. The propagation of plane waves, and of cylindrical waves, or spherical waves in a duct with variable cross section is a special case of wave propagation. The analysis may be greatly simplified by the assumption of one-dimensional flow, whereby the flow properties are assumed to be uniform over a
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Park, Chan Kyun, Doo Hun Lim, and Boreum Ju. "Transformational Leadership and Teacher Engagement in an International Context." In Handbook of Research on Global Issues in Next-Generation Teacher Education. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9948-9.ch002.

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Leadership and teacher engagement are important and meaningful themes for teacher development. Culture has also been considered an important variable in cross-cultural research for a long time. This chapter proposes that the behavior of transformational leaders in schools will positively influence teachers' engagement in their jobs and schools. This chapter also suggests three propositions with relation to Korean culture values as moderators. Specifically, the relationship between transformational leadership and teacher engagement will be stronger when followers more strongly perceive power di
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Shan Yan, Wang Chang, Gao Juan, Song Dingbo, He Aisheng, and Zhang Ruibin. "Combined Bayesian Network-Based Recognition of Lane Changing Behavior." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2017. https://doi.org/10.3233/978-1-61499-785-6-21.

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Aiming at the lane change behavior recognition requirements of lane change warning system, natural lane change samples were captured by using a test vehicle. Steering angle and distance between vehicle and lane mark were used as characteristic parameters of lane change behavior. Support vector machine (SVM) method was used to establish recognizing model of lane change. According to the high-low identification accuracy of the different time window, 1.2 seconds was selected to be as the window length .The sample data in each time window were filtered by Kalman filter. Then, by using principal co
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Conference papers on the topic "Variable-distance - time"

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Passarelli D'Onofrio, Anna Sofia, and Matteo Pecoraro. "Roll Take-Off Model for Tiltrotor Preliminary Design." In Vertical Flight Society 81st Annual Forum and Technology Display. The Vertical Flight Society, 2025. https://doi.org/10.4050/f-0081-2025-245.

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In the last years, new rotorcraft configurations have increased the attention among industries, through which the tiltrotor one due to its capability of combining both rotorcraft and aircraft advantages. However, there are situations where the vertical take-off mode could be enhanced in hard environmental and flight conditions. Therefore, to address this challenge, this work aims to develop a methodology to characterize a roll take-off model for a general tiltrotor configuration in such situations. By combining the integration of the equation of motion and geometrical assumptions, the runway d
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Goudreault, Vincent. "Algorithmic Approach for Algebraic Derivation of Time and Distance to Speed during Variable Acceleration." In SAE 2013 AeroTech Congress & Exhibition. SAE International, 2013. http://dx.doi.org/10.4271/2013-01-2324.

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Esfahani, A. Monemian, S. M. Rezaei, M. Zareinejad, and Mozafar Saadat. "Adaptive Control of a Macro/Micro Bilateral Teleoperation System Under Variable Time Delay." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-40606.

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In this paper a new stable adaptive control for a Macro-Micro bilateral teleoperation system is proposed. Our platform to implement the controllers consists of a servo DC motor (macro) as the master robot and a piezo-actuator (micro) as the slave robot. Piezo-actuator has some characteristics which disturb the transparency and stability of the teleoperation system. We add a nonlinear disturbance observer to the slave robot controller in order to observe and compensate the disturbances. It is recognized that the presence of time delay is one of the largest barriers in teleoperation systems. Thi
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Chuanliang, Liu, Chen Bingbing, and Jin Feng. "Combination forecast of medium and long-term electric quantity variable weight based on the time distance of prediction error." In 2022 IEEE 3rd China International Youth Conference on Electrical Engineering (CIYCEE). IEEE, 2022. http://dx.doi.org/10.1109/ciycee55749.2022.9959031.

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Júnior, Darci José Mendes, Luciana Brugiolo Gonçalves, and Stênio Sã R. F. Soares. "An ILS algorithm with RVND for the green vehicle routing problems with time-varying speeds." In XV Encontro Nacional de Inteligência Artificial e Computacional. Sociedade Brasileira de Computação - SBC, 2018. http://dx.doi.org/10.5753/eniac.2018.4452.

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The environmental impacts of human action have led several countries to create stricter laws and tax breaks to reduce this damage. Thereby, the Green Logistic has been increasingly sought to meet the requirements and needs for a more sustainable development. This work presents an ILS (Iterated Local Search) algorithm combined with RVND (Random Variable Neighborhood Search) and compare it with a GRASP (Greed Randomized Search Procedure) algorithm where each one has two variations: minimize distance and minimize emission. The results show the effectiveness of the ILS approach and heuristics that
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Weerasinghe, Amanda, Muataz Alhussein, He Li, Adrian Wonfor, and Richard Penty. "Slice optimisation for high-speed Gaussian coherent state continuous variable quantum key distribution." In CLEO: Applications and Technology. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/cleo_at.2023.jth2a.26.

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We demonstrate, for the first time, slice reconciliation with optimised guard bands on Gaussian modulated continuous variable quantum key distribution. We produce a record 5Mb/s key rate after 25 km transmission distance with multilevel slicing.
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Atif, Maimoon, and Fahad A. Al-Sulaiman. "Time Instant Optimization of a Heliostat Field Using a Heuristic Algorithm." In ASME 2014 8th International Conference on Energy Sustainability collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/es2014-6566.

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Solar central receiver systems are viewed as one of the most promising concentrated solar power (CSP) technologies for power production, in which solar radiation is concentrated through large mirrors (heliostats) onto a central receiver. This is due to the fact that very high temperatures can be reached at the receiver and thus higher thermal efficiency can be achieved compared with other CSP technologies. Heliostat field layout optimization is an essential task for any solar central receiver system. In this paper, a heuristic algorithm, i.e. the differential evolution (DE), was employed to pe
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Thurston, David F. "Adhesion Considerations in Safe Braking Distance Calculations." In 2015 Joint Rail Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/jrc2015-5630.

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The main objective in optimizing train control is to eliminate the waste associated with the use of “worst case” assumptions to calculate Safe Braking Distances (SBD). Worst case takes the most conservative approach to the determination of train stopping distance in order to provide adequate stopping distance under virtually all conditions. This leads to stopping distances that could be far more than actually required under the circumstances at the time the train is attempting to brake. Several factors are considered in SBD; however one variable that influences a great portion of this distance
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Chikahara, Yoichi, and Akinori Fujino. "Causal Inference in Time Series via Supervised Learning." In Twenty-Seventh International Joint Conference on Artificial Intelligence {IJCAI-18}. International Joint Conferences on Artificial Intelligence Organization, 2018. http://dx.doi.org/10.24963/ijcai.2018/282.

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Causal inference in time series is an important problem in many fields. Traditional methods use regression models for this problem. The inference accuracies of these methods depend greatly on whether or not the model can be well fitted to the data, and therefore we are required to select an appropriate regression model, which is difficult in practice. This paper proposes a supervised learning framework that utilizes a classifier instead of regression models. We present a feature representation that employs the distance between the conditional distributions given past variable values and show e
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Parente, Carlos E. "A New Technique to Visualize Metocean Parameters." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-84108.

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This paper presents a technique (PLEDS) to plot the evolution of a metocean parameter against time, distance or other independent variable, allowing a much clear understanding of the underlying process. The technique has been applied to waves, winds, currents, tides and underwater acoustics.
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Reports on the topic "Variable-distance - time"

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Grumet, Rebecca, and Benjamin Raccah. Identification of Potyviral Domains Controlling Systemic Infection, Host Range and Aphid Transmission. United States Department of Agriculture, 2000. http://dx.doi.org/10.32747/2000.7695842.bard.

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Potyviruses form one of the largest and most economically important groups of plant viruses. Individual potyviruses and their isolates vary in symptom expression, host range, and ability to overcome host resistance genes. Understanding factors influencing these biological characteristics is of agricultural importance for epidemiology and deployment of resistance strategies. Cucurbit crops are subject to severe losses by several potyviruses including the highly aggressive and variable zucchini yellow mosaic virus (ZYMV). In this project we sought to investigate protein domains in ZYMV that infl
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Alchanatis, Victor, Stephen W. Searcy, Moshe Meron, W. Lee, G. Y. Li, and A. Ben Porath. Prediction of Nitrogen Stress Using Reflectance Techniques. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7580664.bard.

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Commercial agriculture has come under increasing pressure to reduce nitrogen fertilizer inputs in order to minimize potential nonpoint source pollution of ground and surface waters. This has resulted in increased interest in site specific fertilizer management. One way to solve pollution problems would be to determine crop nutrient needs in real time, using remote detection, and regulating fertilizer dispensed by an applicator. By detecting actual plant needs, only the additional nitrogen necessary to optimize production would be supplied. This research aimed to develop techniques for real tim
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