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Efficient Scheduling of Data-Harvesting Trees [chapter]

Bastian Katz, Steffen Mecke, Dorothea Wagner
2008 Lecture Notes in Computer Science  
In this work we present mechanisms to set up energy and time efficient TDMA schedules for a given routing tree under very strict limitations: Nodes have only a constant size memory and must agree on a  ...  Many applications in sensor networks demand for energy and time optimal routing of data towards a sink.  ...  Our analysis has shown some lower bounds on the performance of TDMA schemes for data harvesting.  ... 
doi:10.1007/978-3-540-92862-1_5 fatcat:e4hono7gfbgbpfmyz3dlrniqwa

Applying Theory of Constraints to Timber Harvesting

Matthew C. Kelly, René H. Germain
2019 Croatian Journal of Forest Engineering  
Applying concepts from Theory of Constraints (TOC) to timber harvesting may help achieve greater predictability and efficiency when planning harvest operations.  ...  This study focuses on the analysis of production and activity data collected during the harvest of a temperate mixed hardwood forest in the Northeast United States using a chainsaw-forwarder system through  ...  This hypothetical schedule was created based on the time and production data from the observed harvest schedule.  ... 
doi:10.5552/crojfe.2020.534 fatcat:733hswqmp5fnxjpvxkvioo5pne

On the Performance Evaluation of Energy-Aware Sleep Scheduling (EASS) in Energy Harvesting WSN (EH-WSN)

Nico N. Encarnacion, Hyun-Ho Yang
2012 Journal of information and communication convergence engineering  
Tree-based structures offer assured optimal paths from the data source to the sink. Shortest routes are disregarded since these do not consider the remaining energy level of the nodes.  ...  This shortens the lifetime of the whole network. Most tree-based routing protocols, although aware of the nodes' energy, do not consider an energy aware sleep scheduling scheme.  ...  DISCUSSION AND CONCLUSIONS In this study, an energy harvesting structure is going to be implemented over a tree-based routing protocol to greatly increase the energy efficiency of the wireless sensor network  ... 
doi:10.6109/jicce.2012.10.3.264 fatcat:m34dc2ovcfatjgdg34amdtmiom

Balancing Energy Harvesting and Transmission Scheduling in Aggregation Convergecast

Jesse Huard, Ioanis Nikolaidis
2018 Proceedings of the 21st ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems - MSWIM '18  
The collected heat flow data are used to approximate the energy harvesting output of thermoelectric harvesters.  ...  it persists, loss of data.  ...  We then define our harvester according to the following characteristics: • Area A (m 2 ): The physical area of the harvester. • Efficiency η (%): The power conversion efficiency of the harvester. • Internal  ... 
doi:10.1145/3242102.3242132 dblp:conf/mswim/HuardN18 fatcat:jpor3lgtrrg7vjqxxaqyad3uoy

Energy efficient joint data aggregation and link scheduling in solar sensor networks

Jianhui Zhang, Xingfa Shen, Shaojie Tang, Guojun Dai
2011 Computer Communications  
Herein, we present an algorithm to construct Energy-efficient Data Aggregation Tree (EDAT) based on a Maximum-Weighted Connected Dominating Set (MaCDS).  ...  However, it also poses new challenges that the amounts of energy harvested by nodes are dynamic and unbalanced among them thus network life cannot be necessarily prolonged if no well-designed energy-scheduling  ...  In our design, we schedule the energy consumption of each node by balancing the energy efficiency of all the nodes in a network, which means that those with more harvested energy are scheduled to handle  ... 
doi:10.1016/j.comcom.2011.06.011 fatcat:2r2qnag5h5e5zgno34goewwkdi

Discrete-Event Simulation of Ground-Based Timber Harvesting Operations

Ji She, Woodam Chung, David Kim
2018 Forests  
with the same observed data.  ...  A time study (TS) approach is widely used in timber harvesting operations to understand the performance of individual harvesting machines as well as the entire system.  ...  Acknowledgments: The authors thank Hee Han for providing data and time study regression models for this study. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/f9110683 fatcat:j35ndzgdf5hdpjxt6jvgqlo33u

Irrigation Factor Approach Based on Soil Water Content: A Nectarine Orchard Case Study

Juan Vera, Wenceslao Conejero, María Conesa, M. Ruiz-Sánchez
2019 Water  
In this paper, a novel approach for drip irrigation scheduling of fruit trees is presented based on the results obtained during a full growing season in an early-maturing nectarine orchard growing in a  ...  The proposed irrigation factors offer a hands-on approach as an easy tool for irrigation management based on suitable soil water deficits, allowing the water requirements of nectarine trees under precision  ...  Conflicts of Interest: The authors declare that they have no conflict of interest.  ... 
doi:10.3390/w11030589 fatcat:hhw5y4rtjjctzfjgyq3lqkchfa

Can almond trees directly dictate their irrigation needs?

David A. Goldhamer, Elias Fereres, Mario Salinas
2003 California Agriculture  
We have demonstrated, for the first time in California, that RDI can be successfully scheduled based entirely on continuously recorded, tree-based electronic data.  ...  of minute fluctuations in tree trunk diameters -can provide benefits to almond growers such as accelerated hull-split and consequently, an earlier harvest.  ...  Harvest data.  ... 
doi:10.3733/ca.v057n04p138 fatcat:hpxsapkm4bczhhq5nnbdf6m4jm

Effect of work schedule design on productivity of mechanised harvesting operations in Chile

Philippe Pasicott, Glen E Murphy
2013 New Zealand Journal of Forestry Science  
A range of factors, some interacting, were found to affect the level of decrease. These factors included type of work schedule, type of operation, season, tree species, and tree size.  ...  Methods: A long-term data base, which contained over 30 000 machine day records and was maintained by a Chilean forest company, was used to evaluate the effects of three types of extended work schedules  ...  Acknowledgements The authors acknowledge permission by Forestal Mininco (CMPC) to use the data reported in this paper. Funding for this project has been provided by a USDA Special  ... 
doi:10.1186/1179-5395-43-2 fatcat:qusyo2mvufb3palwlafmowahvi

Snapshot of Energy Optimization Techniques to Leverage Life of Wireless Sensor Network

Kavya A P, D J Ravi
2021 International Journal of Advanced Computer Science and Applications  
Energy Optimization in Wireless Sensor Network (WSN) deals with the techniques which targets higher degree of energy efficiency using resource-constraint sensor nodes with minimal inclusion of any different  ...  variants of resources.  ...  latency Doesn't evaluate energy extensively Wan et al. [72] Energy efficiency Sleep scheduling Ensure data accuracy Not assessed for scalability Wang et al. [73] Reduction of transmission  ... 
doi:10.14569/ijacsa.2021.0120714 fatcat:neasx3zauvhylho3so7yh2yv6y

Optimization Pine Plantation Forest Management in Kediri FMU Regional Division II East Java

A R Prasetyo, M B Saleh, S Soedomo
2017 Jurnal Manajemen Hutan Tropika  
Simulation optimization of harvest scheduling was conducted by linear programming. Optimal rotation of pine forest plantation consists of timber rotation and resin rotation.  ...  Thus, the efforts to improve it was by applying the harvest scheduling framework.  ...  of trees per -1 Figure 4 Production of pine resin in units of Figure 6 6 Dynamics of standing structures during harvest scheduling.  ... 
doi:10.7226/jtfm.23.3.171 fatcat:m33qzict2banxoybox4ptifwki

Energy-Efficient Control with Harvesting Predictions for Solar-Powered Wireless Sensor Networks

Tengyue Zou, Shouying Lin, Qijie Feng, Yanlian Chen
2016 Sensors  
To improve the energy efficiency and extend the lifetime of the networks, we propose algorithms for harvested energy prediction using environmental shadow detection.  ...  Furthermore, we introduce clustering and routing selection methods to optimize the data transmission, and a Bayesian network is used for warning notifications of bottlenecks along the path.  ...  Author Contributions: Tengyue Zou and Shouying Lin are the main contributors of this paper. They developed the idea, wrote the paper and carried out the experiments and data analysis.  ... 
doi:10.3390/s16010053 pmid:26742042 pmcid:PMC4732086 fatcat:763xdguzxfdrppyeh2nbjzwel4

Decision support systems for scheduling tasks in Biosystems Engineering

Adrian Knapczyk, Sławomir Francik, Marek Wróbel, Marcin Jewiarz, Krzysztof Mudryk, A. Szeląg-Sikora
2019 E3S Web of Conferences  
The main research topics, areas of application and methods used were determined. In the analyzed documents, task scheduling was mainly used in irrigation and harvest scheduling.  ...  The work reviews the decision support systems in the aspect of scheduling tasks in the field of biosystems engineering.  ...  Acknowledgements This research was financed by the Ministry of Science and Higher Education of the Republic of Poland (Faculty of Production and Power Engineering, University of Agriculture in Krakow).  ... 
doi:10.1051/e3sconf/201913201008 fatcat:knqstofo7feotitw7qixwsctje

ECPV: EFficient Certificate Path Validation in Public-Key Infrastructure [chapter]

M. Halappanavar, R. Mukkamala
2004 IFIP International Federation for Information Processing  
We discuss the two major components of ECPV: the data harvester and the data analyzer. Some of the concerns of security, trust, and performance are also discussed.  ...  An RP, in turn, can use this locally available tree to validate certificate paths of user certificates. The trees shall be periodically updated by the CPVA.  ...  The Scheduler: The Scheduler components triggers the incremental harvester and the bulk harvester at appropriate times to keep the data up-to-date.  ... 
doi:10.1007/1-4020-8070-0_16 fatcat:a3ei5llwlzawrpk4vdrimbp34a

Productivity and costs of two low-investment biomass harvesting systems applied in a situation of mixed forest of semi-natural regeneration

Patricio Carey, Rodrigo Labbé, Guillermo Trincado, Oscar Thiers, Daniel Gárate
2018 Bosque (Valdivia)  
Whole-tree harvesting is the most efficient method, since the cutting and clearing of trees considerably elevates the cost (Kofman and Kent 2007, Laitila 2008) .  ...  data) and a prediction set (25 % of data).  ... 
doi:10.4067/s0717-92002018000300419 fatcat:f6ylvz3yzjeabndqnmdlbe62nq
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