Готові списки джерел за темами / Closed batch

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Опубліковано: 14 березня 2023

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Статті в журналах з теми "Closed batch"

1

Stankevich, Elena P., Igor E. Tananko, and Vitalii I. Dolgov. "Analysis of Closed Queueing Networks with Batch Service." Izvestiya of Saratov University. New Series. Series: Mathematics. Mechanics. Informatics 20, no. 4 (2020): 527–33. http://dx.doi.org/10.18500/1816-9791-2020-20-4-527-533.

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We consider a closed queuing network with batch service and movements of customers in continuous time. Each node in the queueing network is an infinite capacity single server queueing system under a RANDOM discipline. Customers move among the nodes following a routing matrix. Customers are served in batches of a fixed size. If a number of customers in a node is less than the size, the server of the system is idle until the required number of customers arrive at the node. An arriving at a node customer is placed in the queue if the server is busy. The batсh service time is exponentially distributed. After a batсh finishes its execution at a node, each customer of the batch, regardless of other customers of the batch, immediately moves to another node in accordance with the routing probability. This article presents an analysis of the queueing network using a Markov chain with continuous time. The qenerator matrix is constructed for the underlying Markov chain. We obtain expressions for the performance measures. Some numerical examples are provided. The results can be used for the performance analysis manufacturing systems, passenger and freight transport systems, as well as information and computing systems with parallel processing and transmission of information.
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2

Henderson, W., C. E. M. Pearce, P. G. Taylor, and N. M. van Dijk. "Closed queueing networks with batch services." Queueing Systems 6, no. 1 (December 1990): 59–70. http://dx.doi.org/10.1007/bf02411465.

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3

Kao, Yu-Lung, Georg Fieg, and Jeffrey D. Ward. "Closed Operation of Multivessel Batch Reactive Distillation Processes." Industrial & Engineering Chemistry Research 56, no. 13 (March 24, 2017): 3655–70. http://dx.doi.org/10.1021/acs.iecr.6b04756.

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4

Barolo, Massimiliano, and Paolo Dal Cengio. "Closed-loop optimal operation of batch distillation columns." Computers & Chemical Engineering 25, no. 4-6 (May 2001): 561–69. http://dx.doi.org/10.1016/s0098-1354(01)00635-4.

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5

Skouras, S., and S. Skogestad. "Time (energy) requirements in closed batch distillation arrangements." Computers & Chemical Engineering 28, no. 5 (May 2004): 829–37. http://dx.doi.org/10.1016/j.compchemeng.2004.02.021.

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6

Wittgens, Bernd, and Sigurd Skogestad. "Closed operation of multivessel batch distillation: Experimental verification." AIChE Journal 46, no. 6 (June 2000): 1209–17. http://dx.doi.org/10.1002/aic.690460613.

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7

Arrifa Asna, Widia, and Sumardiyono. "The Effect of Nutrient And CO2 Change to Spirullina sp. Growth Cultivation." Jurnal Kimia dan Rekayasa 1, no. 1 (July 8, 2020): 14–23. http://dx.doi.org/10.31001/jkireka.v1i1.8.

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Spirulina sp. is a microalgae recently being developed because of its functions and benefits. This study aimed to determine the optimum growth of Spirulina cultivation using nutrient variables, which were cultured in three different containers, namely open pond batch, closed pond batch and open pond continue. Spirulina sp. was cultivated using NPK fertilizer and urea with freshwater media and light obtained from TL lamps 20 watts. The growth was observed every 24 hours for the analysis process using count booths to determine the number of Spirulina cells. Growth density rate of Spirulina cells in the open pond container batch was 500 cells / ml, in the closed pond batch was 400 cells / ml and in the open pond continue was 290 cells / ml with the number of starter cells of 110 cells / ml. Abstrak Spirulina sp. merupakan jenis mikroalga yang sedang banyak dikembangkan akhir-akhir ini karena memiliki banyak fungsi dan manfaat. Penelitian ini bertujuan untuk mengetahui pertumbuhan optimum pada kultivasi Spirulina sp dengan menggunakan variabel nutrien yang dikultur dengan 3 wadah yang berbeda yakni open pond batch, closed pond batch dan open pond continue. Spirulina sp. dikultivasi menggunakan pupuk NPK dan urea menggunakan media air tawar serta cahaya didapatkan dari lampu TL 20 watt kemudian pertumbuhan diamati setiap 24 jam untuk proses analisa digunakan bilik hitung untuk mengetahui jumlah sel spirulina. Angka pertumbuhan kepadatan sel mikroalga Spirulina sp. pada wadah open pond batch 500 sel/ml, pada closed pond batch 400 sel/ml dan pada open pond continue 290 sel/ml dengan jumlah sel stater 110 sel/ml
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8

Alvarez, Jesus, Eduardo Castellanos-Sahagún, Carlos Fernández, and Salvador Aguirre. "OPTIMAL CLOSED-LOOP OPERATION OF BINARY BATCH DISTILLATION COLUMNS." IFAC Proceedings Volumes 38, no. 1 (2005): 615–20. http://dx.doi.org/10.3182/20050703-6-cz-1902.01676.

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9

Denes, Ferenc, Peter Lang, and Xavier Joulia. "Generalised closed double-column system for batch heteroazeotropic distillation." Separation and Purification Technology 89 (March 2012): 297–308. http://dx.doi.org/10.1016/j.seppur.2012.01.042.

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10

Bhowmick, Madhumita, and Michael J. Semmens. "Batch studies on a closed loop air stripping process." Water Research 28, no. 9 (September 1994): 2011–19. http://dx.doi.org/10.1016/0043-1354(94)90176-7.

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Дисертації з теми "Closed batch"

1

Vanichsriratana, Wirat. "Optimal control of fed-batch fermentation processes." Thesis, University of Westminster, 1996. https://westminsterresearch.westminster.ac.uk/item/94908/optimal-control-of-fed-batch-fermentation-processes.

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Optimisation of a fed-batch fermentation process typically uses the calculus of variations or Pontryagin's maximum principle to determine an optimal feed rate profile. This often results in a singular control problem and an open loop control structure. The singular feed rate is the optimal feed rate during the singular control period and is used to control the substrate concentration in the fermenter at an optimal level. This approach is supported by biological knowledge that biochemical reaction rates are controlled by the environmental conditions in the fermenter; in this case, the substrate concentration. Since an accurate neural net-based on-line estimation of the substrate concentration has recently become available and is currently employed in industry, we are therefore able to propose a method which makes use of this estimation. The proposed method divides the optimisation problem into two parts. First, an optimal substrate concentration profile which governs the biochemical reactions in the fermentation process is determined. Then a controller is designed to track the obtained optimal profile. Since the proposed method determines the optimal substrate concentration profile, the singular control problem is therefore avoided because the substrate concentration appears nonlinearly in the system equations. Also, the process is then operated in closed loop control of the substrate concentration. The proposed method is then called "closed loop optimal control". The proposed closed loop optimal control method is then compared with the open loop optimal feed rate profile method. The comparison simulations from both primary and secondary metabolite production processes show that both methods give similar performance in a case of perfect model while the closed loop optimal control provides better performance than the open loop method in a case of plant/model mismatch. The better performance of the closed loop optimal control is due to an ability to compensate for the modelling errors using feedback.
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2

Hegely, Laszlo. "Improvement of Batch Distillation Separation of Azeotropic Mixtures." Phd thesis, Toulouse, INPT, 2013. http://oatao.univ-toulouse.fr/10671/1/hegely.pdf.

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Distillation is the most widespread method for separating liquid mixtures. The separation of azeotropic mixtures requires a special distillation method. My aim was to improve the batch distillation separation of azeotropic mixtures. A new algorithm was presented for the determination of product sequences of batch distillation of multicomponent azeotropic mixtures. Non-conventional configurations were studied by simulation with emphasis on closed operation. The effects of off-cut recycle on a six-batch separation process of a waste solvent mixture were also investigated. Batch extractive distillation was studied for the separation of two azeotropic mixtures. A new extractive policy was also proposed. A generalised model of batch heteroazeotropic distillation with variable decanter hold-up was developed. This model was extended for batch heterogeneous extractive distillation.
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3

Dénes, Ferenc. "New Double-Column Systems for Batch Heteroazeotropic Distillation." Thesis, Toulouse, INPT, 2012. http://www.theses.fr/2012INPT0124/document.

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J'ai étudié deux nouvelles configurations de double-colonne pour distillation hétéroazéotropique. Ces configurations sont appropriées à la récupération simultanée des composants des mélanges binaires hétéroazéotropiques et homoazéotropiques (en utilisant un tiers corps (entraîneur)). Elle sont opérées en système fermé, c'est-à-dire, il n'y a pas de soutirage de produit continu. D'abord, en appliquant un modèle simplifié, j'ai étudié la faisabilité de la séparation d'un mélange hétéroazéotropique (1-butanol – eau), puis celle d'un mélange homoazéotropique (2-propanol – eau) aidé par entraîneur benzène ou cyclohexane, en utilisant le SDC. Puis, j'ai étudié cette configuration par modélisation rigoureuse, en appliquant le simulateur dynamique du logiciel professionnel ChemCAD (CC-DColumn). J'ai comparé la nouvelle configuration avec le RD, sur la base des résultats obtenus par toutes les deux méthodes d'étude. Le SDC s'est avéré faisable et compétitif avec le RD : pendant la même durée ou plus courte, les rendements des composants ont été plus élevés. Puis, on a étendu le SDC à un système plus flexible (système de double-colonne généralisé, SDCG) qui est approprié à la séparation des mélanges binaires homoazéotropiques aidé par entraîneur (en le cas présent : cyclohexane ou n-hexane). J'ai étendu la méthode de faisabilité aussi à l'étude de cette configuration. Le SDCG s'est avéré aussi faisable. En appliquant modélisation rigoureuse, j'ai étudié les effets des nouveaux paramètres opératoires sur la durée, et j'ai comparé le DCG avec le SDC. Le SDCG s'est avéré encore plus avantageux que le SDC : la durée a été plus courte, et les besoins spécifiques d'énergie des produits ont été plus bas. J'ai étudié le SDC et le SDCG aussi par des manipulations exécutées sur installations de taille laboratoire et pilote. D'abord, j'ai fait des manipulations laboratoires pour la séparation du mélange binaire hétéroazéotropique, en utilisant une installation en verre qui a été opérée aussi comme RD et SDC. Le SDC s'est avéré faisable et compétitif avec le RD aussi sur la base des résultats de ces manipulations : pendant la même durée, les rendements des tous les deux composants ont été plus élevés. Puis, en utilisant l'installation pilote comme SDC, j'ai étudié la séparation ci-dessus. Après cette manipulation, j'ai étudié la séparation du mélange binaire homoazéotropique en appliquant n-hexane comme entraîneur, en opérant le système comme RD et SDCG. La manipulation faite avec le SDCG a montré que la production simultanée de deux composants est faisable avec cette configuration
Distillation is the method the most frequently applied for the separation of liquid mixtures, e.g. for the recovery of the components of the waste solvent mixtures. Because of the high energy demand of these processes the optimal design and operation of the distillation equipments are important from economic and also environmental points of view. The separation of the azeotropic mixtures needs special distillation methods like heteroazeotropic distillation. In the pharmaceutical and fine chemical industries it is often applied in batch mode. The aims of the thesis are to study the feasibility of a new Double-Column System (DCS) for batch heteroazeotropic distillation and to compare it with the traditional Batch Rectifier (BR) equipped with a decanterto study the above configurations by rigorous simulationto extend the DCS (Generalised Double-Column System, GDCS) and to study this new configuration by the above methodsto do laboratory experiments for both configurations in order to prove the feasibility of the separation and validate the calculations, respectively. Two new double-column configurations for batch heteroazeotropic distillation were studied. These configurations are designed to produce simultaneously the components of binary heteroazeotropic and homoazeotropic mixtures (by using an entrainer). They are operated in closed system (without continuous product withdrawal). First the feasibility of the separation of a heteroazeotropic mixture (1-butanol – water) and that of a homoazeotropic one by using an entrainer (isopropanol – water + benzene or cyclohexane) in the DCS were investigated by a simplified model. Then the operation of this configuration was modelled by rigorous simulation by using the dynamic simulator of the professional flowsheet simulator ChemCAD (CC-DColumn). On the basis of the results obtained by both methods the new configuration was compared with the BR. The DCS proved to be feasible and competitive with the BR: during the same or shorter time the recoveries of the components were higher. Then the DCS was extended to a more flexible version (Generalised Double-Column System, GDCS), which is suitable for the separation of binary homoazeotropic mixtures (by using an entrainer, in this work: cyclohexane or n- exane). The feasibility method was extended for the study of this configuration, as well. The GDCS proved to be feasible. Then the effects of its additional operational parameters on the duration were studied by rigorous simulation. The GDCS was compared with the DCS by rigorous simulation, as well. The GDCS proved to be more advantageous than the DCS: the duration was shorter and the specific energy demands of the products were lower. The DCS and GDCS were also investigated by laboratory and pilot plant experiments. First laboratory experiments were done for the separation of the binary heteroazeotropic mixture in a simple small size glass equipment operated as BR and DCS. The DCS proved to be feasible and competitive with the BR also on the basis of the results of these experiments: during the same time the recovery of both components were higher. Then a pilot plant was used for the same separation as a DCS. After this experiment the separation of the binary homoazeotropic mixture by using n-hexane as entrainer was studied in the equipment operated as BR and GDCS. The experiment showed that the simultaneous production of two components is feasible also in the GDCS
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4

Yesilay, Yasemin Ayse. "A Computer Simulator For Ball Mill Grinding." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/2/12605350/index.pdf.

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Ball mill grinding is an important operation in the processing of most minerals, in that it may be used to produce particles of the required size and shape, to liberate minerals from each other for concentration purposes, and to increase the powder surface area. Grinding of minerals is probably the most energy consuming task and optimization of this operation has vital importance in processing plant operations to achieve the lowest operating costs. Predicting the complete product size distribution, mill specifications and power draw are important parameters of this optimization. In this study, a computer simulation program is developed in MATLAB environment to simulate grinding operations using the kinetic model in which comminution is considered as a process continuous in time. This type of model is commonly and successfully used for tumbling grinding mills having strongly varying residence time as a function of feed rate. The program developed, GRINDSIM, is capable of simulating a ball mill for a specified set of model parameters, estimating grinding kinetic parameters from experimental batch grinding data and calculating continuous open and closed-circuit grinding behavior with mill power input. The user interacts with the program through graphical user interfaces (GUI&rsquo
s).
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5

Gigante, Bethany Marie. "SALINE ADAPTATION OF THE MICROALGA Scenedesmus dimorphus FROM FRESH WATER TO BRACKISH WATER." Cleveland State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=csu1382355969.

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6

Iordache, Ancuta. "Performance-cost trade-offs in heterogeneous clouds." Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1S045/document.

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Les infrastructures de cloud fournissent une grande variété de ressources de calcul à la demande avec différents compromis coût-performance. Cela donne aux utilisateurs des nombreuses opportunités pour exécuter leurs applications ayant des besoins complexes en ressources, à partir d’un grand nombre de serveurs avec des interconnexions à faible latence jusqu’à des dispositifs spécialisés comme des GPUs et des FPGAs. Les besoins des utilisateurs concernant l’exécution de leurs applications peuvent varier entre une exécution la plus rapide possible, la plus chère ou un compromis entre les deux. Cependant, le choix du nombre et du type des ressources à utiliser pour obtenir le compromis coût-performance que les utilisateurs exigent constitue un défi majeur. Cette thèse propose trois contributions avec l’objectif de fournir des bons compromis coût-performance pour l’exécution des applications sur des plates-formes hétérogènes. Elles suivent deux directions : un bon usage des ressources et un bon choix des ressources. Nous proposons comme première contribution une méthode de partage pour des accélérateurs de type FPGA dans l’objectif de maximiser leur utilisation. Dans une seconde contribution, nous proposons des méthodes de profilage pour la modélisation de la demande en ressources des applications. Enfin, nous démontrons comment ces technologies peuvent être intégrées dans une plate-forme de cloud hétérogène
Cloud infrastructures provide on-demand access to a large variety of computing devices with different performance and cost. This creates many opportunities for cloud users to run applications having complex resource requirements, starting from large numbers of servers with low-latency interconnects, to specialized devices such as GPUs and FPGAs. User expectations regarding the execution of applications may vary between the fastest possible execution, the cheapest execution or any trade-off between the two extremes. However, enabling cloud users to easily make performance-cost trade-offs is not a trivial exercise and choosing the right amount and type of resources to run applications accordingto user expectations is very difficult. This thesis proposes three contributions to enable performance-cost trade-offs for application execution in heterogeneous clouds by following two directions: make good use of resources and make good choice of resources. We propose as a first contribution a method to share FPGA-based accelerators in cloud infrastructures having the objective to improve their utilization. As a second contribution we propose profiling methods to automate the selection of heterogeneous resources for executing applications under user objectives. Finally, we demonstrate how these technologies can be implemented and exploited in heterogeneous cloud platforms
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7

Furini, Michele. "Tecnologie per l’analisi in tempo reale di Big Data: prestazioni a confronto." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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Анотація:
Lo scopo di questo l'elaborato è l'analisi,lo studio e il confronto delle tecnologie per l'analisi in tempo reale di Big Data: Apache Spark Streaming, Apache Storm e Apache Flink. Per eseguire un adeguato confronto si è deciso di realizzare un sistema di rilevamento e riconoscimento facciale all’interno di un video, in maniera da poter parallelizzare le elaborazioni necessarie sfruttando le potenzialità di ogni architettura. Dopo aver realizzato dei prototipi realistici, uno per ogni architettura, si è passati alla fase di testing per misurarne le prestazioni. Attraverso l’impiego di cluster appositamente realizzati in ambiente locale e cloud, sono state misurare le caratteristiche che rappresentavano, meglio di altre, le differenze tra le architetture, cercando di dimostrarne quantitativamente l’efficacia degli algoritmi utilizzati e l’efficienza delle stesse. Si è scelto quindi il massimo input rate sostenibile e la latenza misurate al variare del numero di nodi. In questo modo era possibile osservare la scalabilità di architettura, per analizzarne l’andamento e verificare fino a che limite si potesse giungere per mantenere un compromesso accettabile tra il numero di nodi e l’input rate sostenibile. Gli esperimenti effettuati hanno mostrato che, all’aumentare del numero di worker le prestazioni del sistema migliorano, rendendo i sistemi studiati adatti all’utilizzo su larga scala. Inoltre sono state rilevate sostanziali differenze tra i vari framework, riportando pro e contro di ognuno, cercando di evidenziarne i più idonei al caso di studio.
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8

Tunková, Martina. "Městské lázně." Master's thesis, Vysoké učení technické v Brně. Fakulta architektury, 2010. http://www.nusl.cz/ntk/nusl-215713.

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9

Wu, Cheng-Sian, and 吳承憲. "Mining Frequent Closed Itemsets based on batch processing." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/65263654105625580949.

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Анотація:
碩士
銘傳大學
資訊傳播工程學系碩士班
99
Mining frequent closed itemsets is one of the most important issues in data mining and it is concise to present the information of frequent itemsets. Extensive studies mainly focus on mining frequent closed itemsets from the transaction database. As long as the transaction database is updated, the frequent closed itemsets should be mined again. But it will be inefficient. Mining frequent closed itemsets over data stream becomes popular because the frequent closed itemsets could be updated dynamically and the efficiency could be improved. In this thesis, we propose a batch processing for mining frequent closed itemsets from transaction database and the frequent closed itemsets could be updated by the numbers of data.
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(10692924), Bara M. Abusalah. "DEPENDABLE CLOUD RESOURCES FOR BIG-DATA BATCH PROCESSING & STREAMING FRAMEWORKS." Thesis, 2021.

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The examiner of cloud computing systems in the last few years observes that there is a trend of the emergence of new Big Data frameworks every single year. Since Hadoop was developed in 2007, new frameworks followed it such as Spark, Storm, Heron, Apex, Flink, Samza, Kafka ... etc. Each framework is developed in a certain way to target and achieve certain objectives better than other frameworks do. However, there are few common functionalities and aspects that are shared between these frameworks. One vital aspect all these frameworks strive to achieve is better reliability and faster recovery time in case of failures. Despite all the advances in making datacenters dependable, failures actually still happen. This is particularly onerous for long-running “big data” applications, where partial failures can lead to significant losses and lengthy recomputations. This is also crucial for streaming systems where events are processed and monitored online in real time, and any delay in data delivery will cause a major inconvenience to the users.
Another observation is that some reliability implementations are redundant between different frameworks. Big data processing frameworks like Hadoop MapReduce include fault tolerance mechanisms, but these are commonly targeted at specific system/failure models, and are often redundant between frameworks. Encapsulating these implementations into one layer and making it shared between different applications will benefit more than one frame-work without the burden of re-implementing the same reliability approach in each single framework.
These observations motivated us to solve the problem by presenting two systems: Guardian and Warden. Guardian is tailored towards batch processing big data systems while Warden is targeted towards stream processing systems. Both systems are robust, RMS based, generic, multi-framework, flexible, customizable, low overhead systems that allow their users to run their applications with individually configurable fault tolerance granularity and degree, with only minor changes to their implementation.
Most reliability approaches carry out one rigid fault tolerance technique targeted towards one system at a time. It is more challenging to provide a reliability approach that is pluggable in multiple Big Data frameworks at a time and can achieve low overheads comparable with single targeted framework approaches, yet is flexible and customizable by its users to make it tailored towards their objectives. The genericity is attained by providing an interface that can be used in different applications from different frameworks in any part of the application code. The low overhead is achieved by providing faster application finish times with and without failures. The customizability is fulfilled by providing the users the options to choose between two fault tolerance guarantees (Crash Failures / Byzantine Failures) and, in case of streaming systems; it is combined with two delivery semantics (Exactly Once / At Most Once).
In other words, this thesis proposes the paradigm of dependable resources: big data processing frameworks are typically built on top of resource management systems (RMSs),and proposing fault tolerance support at the level of such an RMS yields generic fault tolerance mechanisms, which can be provided with low overhead by leveraging constraints on resources.
To the best of our knowledge, such approach was never tried on multiple big data batch processing and streaming frameworks before.
We demonstrate the benefits of Guardian by evaluating some batch processing frame-works such as Hadoop, Tez, Spark and Pig on a prototype of Guardian running on Amazon-EC2, improving completion time by around 68% in the presence of failures, while maintaining around 6% overhead. We’ve also built a prototype of Warden on the Flink and Samza (with Kafka) streaming frameworks. Our evaluations on Warden highlight the effectiveness of our approach in the presence of failures and without failures compared to other fault tolerance techniques (such as checkpointing)
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Книги з теми "Closed batch"

1

Halim, Iskandar. Adsorption study of shell catenex oil-11 in water solution onto powdered activated carbon type darco in a closed stirred batch vessel. Manchester: UMIST, 1996.

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2

Josephs, Barry D. Gaseous chemical reaction equilibrium: Application of the Gibbs free energy to closed batch or steady state gaseous reaction systems and derivation procedures for the chemical equilibrium constant. Salem, Massachusetts: Published by Higginson Book Company, 2012.

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3

Josephs, Barry D. Gaseous chemical reaction equilibrium: Application of the Gibbs free energy to closed batch or steady state gaseous reaction systems and derivation procedures for the chemical equilibrium constant. 4th ed. Salem, Mass: Higginson Book Co., 2012.

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4

Josephs, Barry D. Gaseous chemical reaction equilibrium: Application of the Gibbs free energy to closed batch or steady state gaseous reaction systems and derivation procedures for the chemical equilibrium constant. 2nd ed. Salem, Mass: Higginson Book Co., 2010.

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5

Bach's St. Matthew Passion: A closer look. New York: Continuum, 2008.

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6

Ali, Nadia, and Mattia Guidetti. Umayyad Palace Iconography. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190498931.003.0007.

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The traditional focus on early Islamic art has often obscured the specific contexts of the production of particular artworks. The famous wall paintings at the bath and audience hall of Qusayr ʿAmra and the floor mosaics at Khirbat al-Mafjar provide an opportunity for reconsidering how early Islam responded to encounters with visual and intellectual cultures of Late Antiquity. This essay attempts to explain the making of Umayyad iconography from the craftsmen’s perspectives. By placing the emphasis on the craftsmen and their practices as a repository of techniques, traditions, and cultural memory, we will explore issues of transmission, continuity, and discontinuity in art, through the lens of this segment of society. Ultimately, the goal is to move beyond the interpretation of early Islamic image as a closed symbol, thereby shifting the focus from iconography and style to a practice-centered discourse developed according to the makers’ visual economy.
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Oleskiewicz, Mary. Keyboards, Music Rooms, and the Bach Family at the Court of Frederick the Great. University of Illinois Press, 2018. http://dx.doi.org/10.5622/illinois/9780252041488.003.0002.

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Using historical architectural plans, inventories, and images, this study locates and describes the musical spaces and the keyboard instruments upon which Johann Sebastian, Carl Philipp Emanuel, and Wilhelm Friedemann Bach would have performed at the Prussian court. King Frederick II’s many palaces—and those of the king’s close family members—featured from one to five music rooms, in addition to small palace theaters and orangeries. Oleskiewicz takes the reader on a virtual tour of each palace (with help of an illustrated web companion) and solves many long-standing puzzles about enigmatic features of several keyboard works, specific locations of known performances at court by the Bachs, and the numbers and types of organs, fortepianos and other keyboards at court by Marx, Shudi, Silbermann, and others.
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8

Steichen, James. 1935–1936. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190607418.003.0006.

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This chapter details the activities of the American Ballet during their first year at the Metropolitan Opera as well as the start of Balanchine’s career as a Broadway choreographer. The American Ballet met with mixed success in opera productions but also had the chance to present their own ballets. At this time Balanchine took on work for the Broadway stage, including dances for the 1936 Ziegfeld Follies. Soon after he signed on as choreographer for Richard Rodgers and Lorenz Hart’s new musical On Your Toes. For this musical he created several substantial dance numbers that blended ballet and tap dancing. This work was far more popular than the American Ballet’s controversial production of the opera Orpheus and Eurydice, premiered around the same time. A short-lived “Bach Ballet” inspired by On Your Toes reveals the close connections among these projects and was likely an early inspiration for Balanchine’s ballet Concerto Barocco.
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McAlpine, Kenneth B. Bits and Pieces. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190496098.001.0001.

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This book explores the development of and the social, cultural, and historical context of chiptune, a form of electronic music that emerged from the first generation of video game consoles and home computers in the 1980s. Through a combination of musical and procedural analysis and practitioner interviews, the book explores the role the technical constraints of early video game hardware played in shaping the sound of 8-bit video game music and the inventive approaches to coding and composition musicians used to circumvent them. It examines the sounds, culture, and personalities behind the music and shows how chiptune links as closely to the music of Bach as to the aggressive posturing of punk or the driving electronic sounds of house. The book begins by looking at chiptune’s roots in video game music and discusses how, as the sound chips that gave rise to its distinctive voice were superseded by more sophisticated hardware, chiptune moved underground to become an important part of the demoscene, a networked community of digital artists. It discusses chiptune’s reemergence in the late 1990s as a new wave of young musicians rediscovered these obsolete machines and began to use them as quirky and characterful musical instruments, in the process taking chiptune from the desktop and placing it centre stage. The book concludes by contemplating what lies ahead; as more people incorporate the chiptune sound into their work, will it ever hit the mainstream or will it remain firmly countercultural as part of the digital underground?
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Частини книг з теми "Closed batch"

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Stankevich, Elena, Igor Tananko, and Oleg Osipov. "Analysis of Closed Unreliable Queueing Networks with Batch Service." In Information Technologies and Mathematical Modelling. Queueing Theory and Applications, 352–62. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72247-0_26.

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Nguyen, Thanh-Trung, Quang Nguyen, and Ngo Thanh Hung. "Mining Incrementally Closed Itemsets over Data Stream with the Technique of Batch-Update." In Future Data and Security Engineering, 68–84. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-35653-8_6.

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Wang, Hsiao-Fan, and Chung-Yuan Fu. "Batch Production Plan for Periodic Demands with Uncertain Recycling Rate in a Closed-Loop Supply System." In Supply Chain Management Under Fuzziness, 375–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-53939-8_16.

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4

Gutierrez, Felipe. "Spring Batch." In Spring Cloud Data Flow, 71–87. Berkeley, CA: Apress, 2020. http://dx.doi.org/10.1007/978-1-4842-1239-4_4.

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5

Bisong, Ekaba. "Batch vs. Online Learning." In Building Machine Learning and Deep Learning Models on Google Cloud Platform, 199–201. Berkeley, CA: Apress, 2019. http://dx.doi.org/10.1007/978-1-4842-4470-8_15.

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6

Guillou, Caroline, and Dorothée Verdier. "Theobroma cacao: Somatic Embryogenesis." In Methods in Molecular Biology, 69–81. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2485-2_6.

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AbstractA two-step process combining direct and indirect somatic embryogenesis, on solid and liquid medium, respectively is described for Theobroma cacao L. Staminodes and petals from unopened bud flowers are used to induce primary direct embryos. Then, these primary embryos are cut to produce embryogenic calli which will develop secondary embryos. This step of indirect SE allows us to produce large quantities of embryos and to do mass propagation using liquid culture medium. Despite a very strong clone dependency and high batch-to-batch variability, about 80% of T. cacao cultivars respond to somatic embryogenesis and can be propagated by this method.
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Zhang, Xiaoyu, Tao Jiang, Kuan-Ching Li, and Xiaofeng Chen. "New Publicly Verifiable Computation for Batch Matrix Multiplication." In Green, Pervasive, and Cloud Computing, 53–65. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57186-7_5.

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Gutierrez, Felipe. "Task and Batch Apps with Spring Cloud Data Flow." In Spring Cloud Data Flow, 341–81. Berkeley, CA: Apress, 2020. http://dx.doi.org/10.1007/978-1-4842-1239-4_11.

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Li, Mengtian, and Bin Hu. "A New Fully Homomorphic Encryption Scheme on Batch Technique." In Cloud Computing and Security, 160–71. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00006-6_14.

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Yuan, David Yu, and Tony Wildish. "Bioinformatics Application with Kubeflow for Batch Processing in Clouds." In Lecture Notes in Computer Science, 355–67. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-59851-8_24.

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Abstract Bioinformatics pipelines make extensive use of HPC batch processing. The rapid growth of data volumes and computational complexity, especially for modern applications such as machine learning algorithms, imposes significant challenges to local HPC facilities. Many attempts have been made to burst HPC batch processing into clouds with virtual machines. They all suffer from some common issues, for example: very high overhead, slow to scale up and slow to scale down, and nearly impossible to be cloud-agnostic. We have successfully deployed and run several pipelines on Kubernetes in OpenStack, Google Cloud Platform and Amazon Web Services. In particular, we use Kubeflow on top of Kubernetes for more sophisticated job scheduling, workflow management, and first class support for machine learning. We choose Kubeflow/Kubernetes to avoid the overhead of provisioning of virtual machines, to achieve rapid scaling with containers, and to be truly cloud-agnostic in all cloud environments. Kubeflow on Kubernetes also creates some new challenges in deployment, data access, performance monitoring, etc. We will discuss the details of these challenges and provide our solutions. We will demonstrate how our solutions work across all three very different clouds for both classical pipelines and new ones for machine learning.
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Тези доповідей конференцій з теми "Closed batch"

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Lu, Zi-Huan, Ming-Xi Zheng, Geng-Peng Chen, Jia-Hao Xu, and Guan-Long Huang. "Semi-Closed Free Space Batch Measurement System." In 2022 IEEE Conference on Antenna Measurements and Applications (CAMA). IEEE, 2022. http://dx.doi.org/10.1109/cama56352.2022.10002554.

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2

Bousbia-Salah, R., F. Lesage, M. A. Latifi, and M. Fikar. "Closed-loop dynamic optimization of a polymer grafting batch reactor." In 2017 21st International Conference on Process Control (PC). IEEE, 2017. http://dx.doi.org/10.1109/pc.2017.7976243.

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3

Woodward, Michael E. "Size-limited batch movement in product-form closed discrete-time queueing networks." In the 1997 ACM SIGMETRICS international conference. New York, New York, USA: ACM Press, 1997. http://dx.doi.org/10.1145/258612.258683.

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4

Afolabi, Akindele Segun, Chikara Ohta, and Hisashi Tamaki. "Macrocell batch resource allocation for a closed access femto-macro cellular wireless network." In 2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks (WiOpt). IEEE, 2011. http://dx.doi.org/10.1109/wiopt.2011.5930059.

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5

Yu, H. "Petri net-based closed-loop control and on-line scheduling of the batch process plant." In UKACC International Conference on Control (CONTROL '98). IEE, 1998. http://dx.doi.org/10.1049/cp:19980384.

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Yamamoto, Masayuki, Akira Yamamoto, Hiroki Fujii, and Shunichi Tano. "A Closed Queueing Network Model for SSD Write Performance Analysis Utilizing the Batch Processing Method." In 2021 IEEE 10th Global Conference on Consumer Electronics (GCCE). IEEE, 2021. http://dx.doi.org/10.1109/gcce53005.2021.9621787.

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Singh, Jaclyn, Fouad E. Kiamilev, Miguel Hernandez, Tianne Lassiter, and Alexis Deputy. "Small Batch Fabrication and Weekly Rotational Testing of Closed System Electronics for Infrared LED Scene Projectors." In 2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID). IEEE, 2020. http://dx.doi.org/10.1109/rapid49481.2020.9195691.

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8

Bibiano, Ana Carla, and Alessandro Garcia. "On the Characterization, Detection and Impact of Batch Refactoring in Practice." In XI Congresso Brasileiro de Software: Teoria e Prática. Sociedade Brasileira de Computação - SBC, 2020. http://dx.doi.org/10.5753/cbsoft_estendido.2020.14626.

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Up to 60% of the refactorings in software projects are constituted of a set of interrelated transformations, the so-called batches (or composite refactoring), rather than single transformations applied in isolation. However, a systematic characterization of batch characterization is missing, which hampers the elaboration of proper tooling support and empirical studies of how (batch) refactoring is applied in practice. This paper summarizes the research performed under the context of a Master's dissertation, which aimed at taming the aforementioned problems. To the best of our knowledge, our research is the first work published that provides a conceptual foundation, detection support and an large impact analysis of batch refactoring on code maintainability. To this end, we performed two complementary empirical studies as well as designed a first heuristic aimed at explicitly detecting batch refactorings. Our first study consisted of a literature review that synthesizes the otherwise scattered, partial conceptualization of batch refactoring mentioned in 29 studies with different purposes. We identified and defined seven batch characteristics such as the scope and typology of batches, plus seven types of batch effect on software maintainability, including code smell removal. All batches' characteristics and possible impacts were systematized in a conceptual framework, which assists, for instance, the proper design of batch refactoring studies and batch detection heuristics. We defined a new heuristic for batch detection, which made it possible to conduct a large study involving 4,607 batches discovered in 57 open and closed software projects. Amongst various findings, we reveal that most batches in practice occur entirely within one commit (93%), affect multiple methods (90%). Surprisingly, batches mostly end up introducing (51%) or not removing (38%) code smells. These findings contradict previous investigations limited to the impact analysis of each transformation in isolation. Our findings also enabled us to reveal beneficial or harmful patterns of batches that respectively induces the introduction or removal of certain code smells. These patterns: (i) were not previously documented even in Fowler's refactoring catalog, and (ii) provide concrete guidance for both researchers, tool designers, and practitioners.
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Leow, Chun Ho, Hock Guan Ong, Rachel Lee, and Cheng Ai Khoo. "Corrosion Management of Wet Gas Sour Gas Carbon Steel Pipeline with Corrosion Inhibitor and Mono-Ethylene-Glycol in NACE Region 3." In Offshore Technology Conference Asia. OTC, 2022. http://dx.doi.org/10.4043/31512-ms.

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Abstract This paper will present corrosion management of a wet sour gas carbon steel export pipeline using continuous and batch corrosion inhibitors with mono-ethlene-glycol (MEG) as hydrate mitigation strategy in NACE MR 0175/ ISO 15156 region 3 (severe sour). The wet sour gas carbon steel export pipeline corrosion management via continuous CI and batch inhibitors with closed loop MEG regeneration system is rare worldwide. This is especially challenging when the case study may potentially be the longest wet sour gas, large diameter carbon steel pipeline (approximately 207km × 32 inch) in the world thus far. Pipeline corrosion management and hydrate management aspects when being reviewed holistically, it could provide significant cost savings yet safeguarding the overall technical integrity of the pipeline. The overall corrosion management leverages on Shell's many years of JIP and operating experience in sour service including the pipeline material specification, corrosion management, inspection, and maintenance philosophy. Reliable correlation between reservoir properties and uncertainties severe sour service, flow assurance, chemical behavirous, operating experiences etc were considered to best represent the operating envelope for this wet sour gas carbon steel pipeline. This includes the testing and selection of continuous CI and batch inhibitor, corrosion monitoring, operational pigging, maintenance, and inspection requirements throughout the field life.
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10

Min, Wenbo, Sheng Yang, Ying Zhang, and Yaoyao Fiona Zhao. "A Comparative Study of Metal Additive Manufacturing Processes for Elevated Sustainability." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97436.

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Abstract Metal additive manufacturing (AM) processes have gone through a compound growth over the past decade, and the technology is widely applied in industries like aerospace, automobile and bio-medical fields. There is an increasing need to understand and improve its sustainability given the high profile of existing environmental challenges. This paper aims at developing a precise comparative model for the three major metal AM processes (including Laser Powder Bed Fusion (LPBF), Electron Beam Melting (EBM), and Direct Energy Deposition (DED)) with respect to environmental performance assessment with a future goal of providing closed-loop feedbacks for design optimization with elevated sustainability. To improve the precision of previously reported models, new factors including embodied impacts of machine and recycled powder, operation patterns, system lifespan and batch size, are considered. A topologically optimized rocket bracket made of Ti6Al4V is used as an example to investigate the environmental performance of the three processes. The results showed that given the same design solution, the EBM had the lowest environmental impacts for low batch size, while the DED excelled at production efficiency.
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Звіти організацій з теми "Closed batch"

1

Lahav, Ori, Albert Heber, and David Broday. Elimination of emissions of ammonia and hydrogen sulfide from confined animal and feeding operations (CAFO) using an adsorption/liquid-redox process with biological regeneration. United States Department of Agriculture, March 2008. http://dx.doi.org/10.32747/2008.7695589.bard.

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The project was originally aimed at investigating and developing new efficient methods for cost effective removal of ammonia (NH₃) and hydrogen sulfide (H₂S) from Concentrated Animal Feeding Operations (CAFO), in particular broiler and laying houses (NH₃) and hog houses (H₂S). In both cases, the principal idea was to design and operate a dedicated air collection system that would be used for the treatment of the gases, and that would work independently from the general ventilation system. The advantages envisaged: (1) if collected at a point close to the source of generation, pollutants would arrive at the treatment system at higher concentrations; (2) the air in the vicinity of the animals would be cleaner, a fact that would promote animal growth rates; and (3) collection efficiency would be improved and adverse environmental impact reduced. For practical reasons, the project was divided in two: one effort concentrated on NH₃₍g₎ removal from chicken houses and another on H₂S₍g₎ removal from hog houses. NH₃₍g₎ removal: a novel approach was developed to reduce ammonia emissions from CAFOs in general, and poultry houses in particular. Air sucked by the dedicated air capturing system from close to the litter was shown to have NH₃₍g₎ concentrations an order of magnitude higher than at the vents of the ventilation system. The NH₃₍g₎ rich waste air was conveyed to an acidic (0<pH<~5) bubble column reactor where NH₃ was converted to NH₄⁺. The reactor operated in batch mode, starting at pH 0 and was switched to a new acidic absorption solution just before NH₃₍g₎ breakthrough occurred, at pH ~5. Experiments with a wide range of NH₃₍g₎ concentrations showed that the absorption efficiency was practically 100% throughout the process as long as the face velocity was below 4 cm/s. The potential advantages of the method include high absorption efficiency, lower NH₃₍g₎ concentrations in the vicinity of the birds, generation of a valuable product and the separation between the ventilation and ammonia treatment systems. A small scale pilot operation conducted for 5 weeks in a broiler house showed the approach to be technically feasible. H₂S₍g₎ removal: The main goal of this part was to develop a specific treatment process for minimizing H₂S₍g₎ emissions from hog houses. The proposed process consists of three units: In the 1ˢᵗ H₂S₍g₎ is absorbed into an acidic (pH<2) ferric iron solution and oxidized by Fe(III) to S⁰ in a bubble column reactor. In parallel, Fe(III) is reduced to Fe(II). In the 2ⁿᵈ unit Fe(II) is bio-oxidized back to Fe(III) by Acidithiobacillus ferrooxidans (AF).In the 3ʳᵈ unit S⁰ is separated from solution in a gravity settler. The work focused on three sub-processes: the kinetics of H₂S absorption into a ferric solution at low pH, the kinetics of Fe²⁺ oxidation by AF and the factors that affect ferric iron precipitation (a main obstacle for a continuous operation of the process) under the operational conditions. H₂S removal efficiency was found higher at a higher Fe(III) concentration and also higher for higher H₂S₍g₎ concentrations and lower flow rates of the treated air. The rate limiting step of the H₂S reactive absorption was found to be the chemical reaction rather than the transition from gas to liquid phase. H₂S₍g₎ removal efficiency of >95% was recorded with Fe(III) concentration of 9 g/L using typical AFO air compositions. The 2ⁿᵈ part of the work focused on kinetics of Fe(II) oxidation by AF. A new lab technique was developed for determining the kinetic equation and kinetic parameters (KS, Kₚ and mₘₐₓ) for the bacteria. The 3ʳᵈ part focused on iron oxide precipitation under the operational conditions. It was found that at lower pH (1.5) jarosite accumulation is slower and that the performance of the AF at this pH was sufficient for successive operation of the proposed process at the H₂S fluxes predicted from AFOs. A laboratory-scale test was carried out at Purdue University on the use of the integrated system for simultaneous hydrogen sulfide removal from a H₂S bubble column filled with ferric sulfate solution and biological regeneration of ferric ions in a packed column immobilized with enriched AFbacteria. Results demonstrated the technical feasibility of the integrated system for H₂S removal and simultaneous biological regeneration of Fe(III) for potential continuous treatment of H₂S released from CAFO. NH₃ and H₂S gradient measurements at egg layer and swine barns were conducted in winter and summer at Purdue. Results showed high potential to concentrate NH₃ and H₂S in hog buildings, and NH₃ in layer houses. H₂S emissions from layer houses were too low for a significant gradient. An NH₃ capturing system was designed and tested in a 100-chicken broiler room. Five bell-type collecting devices were installed over the litter to collect NH₃ emissions. While the air extraction system moved only 10% of the total room ventilation airflow rate, the fraction of total ammonia removed was 18%, because of the higher concentration air taken from near the litter. The system demonstrated the potential to reduce emissions from broiler facilities and to concentrate the NH₃ effluent for use in an emission control system. In summary, the project laid a solid foundation for the implementation of both processes, and also resulted in a significant scientific contribution related to AF kinetic studies and ferrous analytical measurements.
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Abbott, Albert G., Doron Holland, Douglas Bielenberg, and Gregory Reighard. Structural and Functional Genomic Approaches for Marking and Identifying Genes that Control Chilling Requirement in Apricot and Peach Trees. United States Department of Agriculture, September 2009. http://dx.doi.org/10.32747/2009.7591742.bard.

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Structural and functional genomic approaches for marking and identifying genes that control chilling requirement in apricot and peach trees. Specific aims: 1) Identify and characterize the genetic nature of chilling requirement for flowering and dormancy break of vegetative shoots in Prunusgermplasm through the utilization of existing apricot (NeweYa'ar Research Center, ARO) and peach (Clemson University) genetic mapping populations; 2) Use molecular genetic mapping techniques to identify markers flanking genomic regions controlling chilling; 3) Comparatively map the regions controlling chilling requirement in apricot and peach and locate important genomic regions influencing chilling requirement on the Prunus functional genomic database as an initial step for identification of candidate genes; 4) Develop from the functional genomics database a set of markers facilitating the development of cultivars with optimized chilling requirements for improved and sustained fruit production in warm-winter environments. Dormant apricot (prunus armeniaca L.) and peach [Prunus persica (L.) Batsch] trees require sustained exposure to low, near freezing, temperatures before vigorous floral and vegetative bud break is possible after the resumption of warm temperatures in the spring. The duration of chilling required (the chilling requirement, CR) is determined by the climatic adaptation of the particular cultivar, thus limiting its geographic distribution. This limitation is particularly evident when attempting to introduce superior cultivars to regions with very warm winter temperatures, such as Israel and the coastal southern United States. The physiological mechanism of CR is not understood and although breeding programs deliberately manipulate CR in apricot and peach crosses, robust closely associated markers to the trait are currently not available. We used segregating populations of apricot (100 Fl individuals, NeweYa'ar Research Center, ARO) and peach (378 F2 individuals, Clemson University) to discover several discreet genomic loci that regulate CR and blooming date. We used the extensive genomic/genetic resources available for Prunus to successfully combine our apricot and peach genetic data and identify five QTL with strong effects that are conserved between species as well as several QTL that are unique to each species. We have identified markers in the key major QTL regions for testing in breeding programs which we are carrying out currently; we have identified an initial set of candidate genes using the peach physical/transcriptome map and whole peach genome sequences and we are testing these currently to identify key target genes for manipulation in breeding programs. Our collaborative work to date has demonstrated the following: 1) CR in peach and apricot is predominantly controlled by a limited number ofQTL loci, seven detected in a peach F2 derived map comprising 65% of the character and 12 in an apricot Fl map comprising 71.6% and 55.6% of the trait in the Perfection and A. 1740 parental maps, respectively and that peach and apricot appear in our initial maps to share five genomic intervals containing potentially common QTL. 2) Application of common anchor markers of the Prunus/peach, physical/genetic map resources has allowed us not only to identify the shared intervals but also to have immediately available some putative candidate gene information from these intervals, the EVG region on LG1 in peach the TALY 1 region in apricot on LG2 in peach; and several others involved in vernalization pathways (LGI and LG7). 3) Mapped BACcontigs are easily defined from the complete physical map resources in peach through the common SSR markers that anchor our CR maps in the two species, 4) Sequences of BACs in these regions can be easily mined for additional polymorphic markers to use in MAS applications.
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