• 68066 SepOct07PaperAge 9/14/07 5:19 PM Page 30 paper ...

    paper machine optimization While attempting to increase machine speed on these older machines, drying rate of the dryer section frequently becomes a primary limitation. One way to overcome this limitation is to increase steam pressure in some of the dry-ers. If additional header pressure is already available, and the

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  • Network Structure and Transfer Behaviors Embedding via ...

    Network-structured data is becoming increasingly popular in many applications. However, these data present great challenges to feature engineering due to its high non-linearity and sparsity. The issue on how to transfer the link-connected nodes of the huge network into feature representations is critical. As basic properties of the real-world networks, the local and global structure can be ...

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  • Fundamentals of Paper Drying Theory and Application from ...

    55%, depending on the paper grade and press se ction design. The third part of the paper machine is called the drying or dryer section. The paper web passes over rotating, heated cast iron cylinders and the most of the remaining water is removed by evaporation. When the paper leaves the dryer section its solid content has increased to about 90-95%.

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  • OPTIMIZATION OF WATER REMOVAL IN THE PRESS .

    sections of a paper machine can be remodeled and improved, with the exception of the width that is fixed. In general, the parts of a machine to manufacture paper are: the wire section, the press section and the drying section (Figure 1). The removal of water starts by gravity, is followed by suction and pressing, and finishes by evaporation.

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  • Incremental Gradient, Subgradient, and Proximal Methods ...

    In this paper, we survey the algorithmic properties of incremental methods in a uni ed framework, based on the author's recent work on incremental proximal methods [Ber10] (an early version appears in the supplementary algorithms chapter of the book [Ber09]). In this section, we rst provide an overview of

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  • Analysis, Modeling and Optimization of Multicylinder Paper ...

    The paper machine drying type is classified according to the structure of the drying section, multi-dryer paper machine is the most common one used in the papermaking process, account for about 85 to 90%. Multi-dryer paper machine drying section of the energy system has been a .

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  • X Efficient Market Making via Convex Optimization, and a ...

    X Efficient Market Making via Convex Optimization, and a Connection to Online Learning Jacob Abernethy, University of Pennsylvania Yiling Chen, Harvard University Jennifer Wortman Vaughan, University of California, Los Angeles We propose a general framework for the design of securities markets over combinatorial or infinite state

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  • nextlevel by Voith Paper – N° 01

    04 Section Maximize cleaning The innovative design of the CleanLine Extract4D ensures that the water jets are aimed directly at the contamination on the fabric surface, inside the fabric structure and through the CMD voids. New directions Paper machines using recycled ber need to continuously clean dryer-section .

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  • Learning to Rank by Optimizing NDCG Measure

    The rest of this paper is organized as follows. The related work is presented in Section 2. The proposed framework and optimization strategy is presented in Section 3. We report our experimental study in Section 4 and conclude this work in Section 5. 2 Related Work

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  • g2o: A General Framework for Graph Optimization

    In this paper, we describe a general framework for per-forming the optimization of nonlinear least squares proble ms that can be represented as a graph. We call this framework g 2 o (for general graph optimization ). Figure 1 gives an overview of the variety of problems that can be solved by using g 2 o as an optimization back-end. The proposed

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  • Benchmarking energy use in the paper industry: a ...

    Jul 13, 2012· The production of paper and board is an energy intensive process. With an energy use of 6.4 EJ in 2005, the pulp and paper industry was responsible for about 6 % of the world's total industrial energy consumption (International Energy Agency (IEA) 2008), being the fourth largest industrial energy user worldwide.Energy prices rose drastically from 2005 until 2008 by around 40 % on average in ...

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  • A Tutorial on Formulating and Using QUBO Models

    Section 1: Introduction The field of Combinatorial Optimization (CO) is one of the most important areas in the field of optimization, with practical applications found in every industry, including both the private and public sectors. It is also one of the most active research areas pursued by the research

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  • Steam & Condensate System Improvements

    Aug 17, 2012· All pulp, paper, board and the majority of tissue machines have steam and condensate systems. The objective of the steam and condensate system in the paper machine is to provide the steam for the drying. In the dryer section the moisture is evaporated as the sheet is pressed between a fabric and the hot drying cylinder.

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  • Practical Bayesian Optimization of Machine Learning Algorithms

    requires training a machine learning algorithm — then it is easy to justify some extra computation to make better decisions. For an overview of the Bayesian optimization formalism and a review of previous work, see, e.g., Brochu et al. [10]. In this section we briefly review the general Bayesian

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  • Process Parameters Optimization for Energy Saving in Paper ...

    Jun 08, 2011· In order to improve the energy efficiency of the paper machine dryer section, deeper analysis and optimization of process parameters are necessary. A NLP optimization method is developed for integration of steam system and air system to reduce the steam consumption and decrease the loads of centrifugal blowers in the multicylinder dryer section ...

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  • Drying Section Optimization

    Drying Section Optimization PM drying section optimization improves process The EV Group (EVG) is a team of specialists providing customized services and technologies to op-timize paper machine runnability, process efficiency, and paper qua-lity. EVG is specialized in solving PM operational bottlenecks and problems. They offer tailored

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  • Genetic Algorithm-Based Optimization of Steam Consumption ...

    In paper dryer section of the paper machine, paper dehydration is small, but the steam consumption for the process of dehydration is very large, this steam consumption has a great influence to the total steam consumption of the whole papermaking process. A method optimization of the dryer section based on genetic algorithm is proposed to reduce the dryer section steam consumption, which can ...

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  • PMC800 ABB's control solution for paper machine drives

    Paper machine drives control Specifically developed for paper machine drive control, PMC800 can handle the specialized needs of any paper mill's drive system. PMC800 features control application software for the drive section, machine section and machine type, as well as common control for the entire machine.

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  • nextlevel by Voith Paper – N° 01

    04 Section Maximize cleaning The innovative design of the CleanLine Extract4D ensures that the water jets are aimed directly at the contamination on the fabric surface, inside the fabric structure and through the CMD voids. New directions Paper machines using recycled ber need to continuously clean dryer-section .

    Get price
  • The LambdaLoss Framework for Ranking Metric Optimization

    daLoss framework can significantly improve the state-of-the-art learning-to-rank algorithms. The rest of this paper is organized as follows: In Section 2, we review previous related work. We formulate our problem in Sec-tion 3. The probabilistic framework is presented in Section 4 and our metric-driven loss functions are described in Section 5. We

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  • A new data-driven topology optimization framework for ...

    Oct 15, 2020· We introduce the new data-driven topology optimization (DDTO) framework in this section. Fig. 2 shows the general framework of the DDTO which uses directly material data sets for the representation of material behaviors, rather than the empirical constitutive models.. Download : Download high-res image (357KB) Download : Download full-size image Fig. 2.

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  • Sizing Problems (Troubleshooting Guide)

    Sizing Problems (Acidic, AKD, ASA, Rosin, Self-sizing, Size reversion, Variable sizing)The purpose of internal sizing is to resist the penetration or spreading of liquids through or on paper. The subject is complicated by the fact that there are several very different kinds of chemical treatments to make paper fluid-resistant, there are widely different kinds of liquids with which the paper ...

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  • Reinforcement learning - Wikipedia

    Reinforcement learning (RL) is an area of machine learning concerned with how software agents ought to take actions in an environment in order to maximize the notion of cumulative reward. Reinforcement learning is one of three basic machine learning paradigms, alongside supervised learning and unsupervised learning.. Reinforcement learning differs from supervised learning in not needing ...

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  • Design and Optimization of Synergic Control System for ...

    This system integrated above-mentioned systems, not only reduced the energy consumption of paper machine dryer section but also laid a foundation for achieving overall optimization of dryer section.

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  • AI Safety · Tutorial 1

    Disclaimer. We recommend that you read Section 3 of the supplementary materials of our paper for the formal definition of our framework and Seldonian algorithms. Here we provide an extremely brief recap. Although this tutorial summarizes our framework and Seldonian algorithms, it does not walk through why the framework is the way it is, or how it compares to the previous standard approach for ...

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  • Multiobjective process line optimization under uncertainty ...

    Jul 18, 2007· Multiobjective optimization methodology for the development of the papermaking process is considered. The aim is to find efficient and reliable solution procedures for the process line model consisting of sequential unit-process models; some of them based on physics, whereas others on experimental data. By the consequence of modeling procedures, nonphysical states or inherited from .

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  • Pulp and paper | SKF

    Pulp and paper Led by producers from North America, Northern Europe and East Asia, the pulp and paper industry is the one of the largest in the world. Despite gains in operating earnings and production volumes, the industry is being reshaped by several megatrends, including globalisation, environmentalism, digitalisation and e-commerce.

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  • Through Air Drying (TAD) tissue making technology | The ...

    Sep 28, 2017· Figure 4: A traditional TAD machine with two TAD cylinders and Yankee. 8. Reel After the Yankee dryer the web is wound into a large roll. The reel may be a standard reel, as described in the wet-pressed section, or a "belted" reel which improves winding and turn-up efficiency.

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  • Measuring Paper Machine Energy Performance

    Measuring Paper Machine Energy Performance Dick Reese Dick Reese and Associates, Inc. 5121 Edgerton Dr Norcross, GA 30092 (770) 448-8002 ... Dryer section blow boxes- 160oF ... Press Optimization

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  • Submodular Video Hashing: A Unified Framework Towards .

    The contribution in this paper is in developing a u-nified submodular framework that integrates video pooling and hashing, and provides an efficient strategy exploring the rich contents in video retrieval. In recent years, submodular optimization has emerged as a powerful optimization tool in a variety of machine learning problems including active

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  • An evolutionary simulation optimization framework for ...

    Aug 01, 2018· The rest of this paper is organized as follows: Section 2 provides the mathematical formulation of the considered problem of scheduling of interruptible loads. Section 3 provides details of the various components of the proposed evolutionary simulation optimization framework for ILM. Section 4 presents and ... as dryer, washing machine, etc ...

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Founded in 1982, Dekelon Paper Making Machinery Co.,Ltd. has always striven to meet and exceed customer expectations and continue to update and improve...

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