Journal articles: 'Transfer Optimisation'

1

Kerby, J., T. Hillyer, R. McCoy, D. Popova, T. Gaskell, and J. Barry. "Transfer and optimisation of ATMP manufacturing." Cytotherapy 19, no. 5 (May 2017): S115. http://dx.doi.org/10.1016/j.jcyt.2017.02.182.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Othman, Muhammad Murtadha, and Bibi Norashiqin Sheikh Rahimullah. "Available Transfer Capability Optimisation Using Evolutionary Programming." Scientific Research Journal 4, no. 2 (December 31, 2007): 13. http://dx.doi.org/10.24191/srj.v4i2.5656.

Full text

Abstract:

In a deregulated electric power industry, transmission providers are required to rapidly produce commercially viable information of available transfer capability (ATC) so that such information can help power marketers, sellers and buyers in planning, operation and reserving transmission services. ATC is a measure of the additional amount of power transfer that may flow across the interface, over and above the base case flows without jeopardizing power system security. This paper presents the ATC determination using the evolutionary programming (EP) technique using modified Gaussian formulation. The proposed EP technique has the ability in providing accurate ATC results and the computation burden caused by the AC power flow solutions are significantly reduced. The outages of critical line that adversely affect the amount of ATC are determined by performing the line contingency ranking and selection. ATC determinations have been made on the case study of Malaysian system. Comparison in terms of accuracy and computation time in estimating the ATC are made by considering the three methods which are the EP using modified Gaussian formulation (EPMG), EP using standard Gaussian formulation (EPSG) and the recursive AC power flow solution (RACPF).

APA, Harvard, Vancouver, ISO, and other styles

3

Othman, Muhammad Murtadha, and Bibi Norashiqin Sheikh Rahimullah. "Available Transfer Capability Optimisation Using Evolutionary Programming." Scientific Research Journal 4, no. 2 (December 31, 2007): 13. http://dx.doi.org/10.24191/srj.v4i2.9341.

Full text

Abstract:

In a deregulated electric power industry, transmission providers are required to rapidly produce commercially viable information of available transfer capability (ATC) so that such information can help power marketers, sellers and buyers in planning, operation and reserving transmission services. ATC is a measure of the additional amount of power transfer that may flow across the interface, over and above the base case flows without jeopardizing power system security. This paper presents the ATC determination using the evolutionary programming (EP) technique using modified Gaussian formulation. The proposed EP technique has the ability in providing accurate ATC results and the computation burden caused by the AC power flow solutions are significantly reduced. The outages of critical line that adversely affect the amount of ATC are determined by performing the line contingency ranking and selection. ATC determinations have been made on the case study of Malaysian system. Comparison in terms of accuracy and computation time in estimating the ATC are made by considering the three methods which are the EP using modified Gaussian formulation (EPMG), EP using standard Gaussian formulation (EPSG) and the recursive AC power flow solution (RACPF).

APA, Harvard, Vancouver, ISO, and other styles

4

Block, Christophe, Amit Kumar Ghosh, Bruno Van Mele, and Guy Van Assche. "RheoDSC: Design optimisation by heat transfer modelling." Thermochimica Acta 547 (November 2012): 130–40. http://dx.doi.org/10.1016/j.tca.2012.08.019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Besuchet, Romain, Christophe Auvigne, Dan Shi, Christophe Winter, Yoan Civet, and Yves Perriard. "Optimisation of an inductive power transfer structure." Journal of international Conference on Electrical Machines and Systems 2, no. 3 (September 1, 2013): 349–55. http://dx.doi.org/10.11142/jicems.2013.2.3.349.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Kenwright, Alan M., Juan A. Aguilar, Banabithi Koley Seth, and Ilya Kuprov. "Coherence transfer delay optimisation in PSYCOSY experiments." Magnetic Resonance in Chemistry 58, no. 1 (July 22, 2019): 51–55. http://dx.doi.org/10.1002/mrc.4920.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Manzari, M. T., D. T. Gethin, and R. W. Lewis. "Optimisation of heat transfer between casting and mould." International Journal of Cast Metals Research 13, no. 4 (December 2000): 199–206. http://dx.doi.org/10.1080/13640461.2000.11819402.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Zou, Xiao Kang, Hoi Yuen Lee, Edward Sai Cheong Chan, and Ping Xiang. "Cost design optimisation of concrete transfer beam structures." HKIE Transactions 21, no. 3 (July 3, 2014): 178–91. http://dx.doi.org/10.1080/1023697x.2014.948532.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Tao, Tao, Zoltán Macháty, Lalantha R. Abeydeera, Billy N. Day, and Randall S. Prather. "Optimisation of porcine oocyte activation following nuclear transfer." Zygote 8, no. 1 (February 2000): 69–77. http://dx.doi.org/10.1017/s0967199400000848.

Full text

Abstract:

Experiments were conducted to examine the effects of (a) different activation methods, (b) incubation time in calcium-free medium and (c) bisbenzimide staining on the activation and subsequent development of pig oocytes. Oocytes were matured in vitro and activated by one of the following methods: combined thimerosal/dithiothreitol (DTT) treatment, calcium ionophore A23187 treatment followed by incubation in the presence of 6-dimethylaminopurine (6-DMAP), electroporation, and electroporation followed by incubation with cytochalasin B. There were no significant differences in the activation rate (ranging from 70.0% to 88.3%) and the percentage of cleaved embryos after activation (ranging between 48.8% and 58.8%) among the four treatment groups (p < 0.05). The rate of development to the blastocyst stage in oocytes activated by thimerosal/DTT (10.0%) or electroporation followed by cytochalasin B treatment (12.3%) was significantly higher (p < 0.05) than in the group activated with A23187/6-DMAP (2.5%). Both the activation rate and the rate of blastocyst formation in oocytes that were incubated in Ca2+-free medium for 8 h before thimerosal/DTT activation were significantly lower (p < 0.05) than in those incubated for 0, 1 or 4 h. Intracellular Ca2+ measurements revealed that the Ca2+ homeostasis in these oocytes were severely altered. Staining of oocytes with 5 μg/ml bisbenzimide for 2 h decreased the quality of blastocysts and increased the rate of degenerated embryos at day 6. Two activation protocols (thimerosal/DTT and electroproation) were used for activation after nuclear transfer; the rate of nuclear formation did not differ in the oocytes activated by the two different methods.

APA, Harvard, Vancouver, ISO, and other styles

10

Dolgui, A., N. Guschinsky, G. Levin, and J. M. Proth. "Optimisation of multi-position machines and transfer lines." European Journal of Operational Research 185, no. 3 (March 2008): 1375–89. http://dx.doi.org/10.1016/j.ejor.2006.03.069.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Wong, Eugene, Allen H. Tai, Yan Wei, and Iris Yip. "Redesigning one-warehousen-retailer routing model in inter-store stock transfer operations of an international retail chain distribution." Asia Pacific Journal of Marketing and Logistics 30, no. 3 (June 11, 2018): 536–54. http://dx.doi.org/10.1108/apjml-06-2017-0124.

Full text

Abstract:

PurposeThe effectiveness of product replenishment and responsiveness of customer service delivery impact largely on satisfaction and retention of customers in retail chain logistics distribution. The fast moving goods in the complex delivery network and limited vehicle resource often lead to long customer waiting time in stock replenishment. With lack of literature systematically reviewing factors affecting retail distribution in inter-store stock transfer services and improving the operations, the purpose of this paper is to analyse and enhance this service for the retail to reduce customer dissatisfaction by developing an integrated quality service improvement methodology and an optimisation tool to improve the product delivery services.Design/methodology/approachThis paper reviews inter-store stock transfer operations and the process capability of an international retail chain, and proposes improvements by integrating Six Sigma, factor analysis, and optimisation modelling. User experience and expectations are evaluated through an empirical survey. A novel principle component factored inter-store stock transfer model is developed to improve replenishment operations. A total of 11 factors affecting inter-store stock transfer delivery time are analysed. An extended model with principal component factors incorporated is developed for the simulation.FindingsTheCpkvalue of 0.51 shows significant difference between the experienced and expected waiting time. With the inter-store stock transfer optimisation model developed, the model assists traffic personnel on the vehicle route planning with multiple pick-up and drop-off locations. The system also ensures the best routing with a minimal travelling time planned, facilitating a reduction of the inter-store stock transfer time, thus improving the customer waiting time. Four significant factors affecting the delivery time are also identified from exploratory and confirmatory factor analysis. The results are analysed with an extended principal component factored inter-store stock transfer model.Practical implicationsThe developed inter-store stock transfer models minimise stock transfer time, increase customer satisfaction, and reduce loss of sales. An integrated service quality improvement methodology has been developed and applied in reviewing significant factors affecting inter-store stock transfer operations.Originality/valueThis paper presents an analysis on inter-store stock transfer operations of an international retail and proposes enhancements on the operations by integrating Six Sigma, factor analysis, and optimisation modelling. A novel principal component factored inter-store stock transfer model is developed to improve the stock replenishment operations.

APA, Harvard, Vancouver, ISO, and other styles

12

Muhammad Arif Harun, Nor Azwadi Che Sidik, Yutaka Asako, and Tan Lit Ken. "Recent Review On Preparation Method, Mixing Ratio, and Heat Transfer Application Using Hybrid Nanofluid." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 95, no. 1 (June 18, 2022): 44–53. http://dx.doi.org/10.37934/arfmts.95.1.4453.

Full text

Abstract:

Hybrid nanofluid is the extension from nanofluid that had been recently discovered, which can enhance heat transfer performance of heat transfer application. However, there were limited reviews had been done on the effect of surfactant on thermal conductivity and the mixing ratio of hybrid nanofluid. These reviews are critical to giving a detailed insight into the factors that affect the heat transfer enhancement of hybrid nanofluid. Furthermore, a recent review on the hybrid nanofluid in heat transfer application is done to update any new findings in heat transfer enhancement. The review results showed that there were limited studies had been done on the optimisation of surfactants based on thermal conductivity. This optimisation is essential to ensure the prepared hybrid nanofluid has high stability without affecting the high thermal conductivity properties. Furthermore, there were no studies done by any researchers on the comprehensive optimisation of the mixing ratio hybrid nanofluid. All of the studies used the One Factor at a Time (OFAT) method with the selected mixing ratio. Next, based on the review of hybrid nanofluid in heat transfer application, there were limited studies compared with mono-nanofluid. Furthermore, the idea of hybridising different nanoparticles was to achieve high stability and high thermal conductivity working fluid. Several drawbacks were highlighted from the studies: pressure drop, pumping power, lower velocity flow, and high friction factor.

APA, Harvard, Vancouver, ISO, and other styles

13

Jin, Liang, Xiao Zhang, Yilin Fang, and Duc Truong Pham. "Transfer Learning-Assisted Evolutionary Dynamic Optimisation for Dynamic Human-Robot Collaborative Disassembly Line Balancing." Applied Sciences 12, no. 21 (October 30, 2022): 11008. http://dx.doi.org/10.3390/app122111008.

Full text

Abstract:

In a human-robot collaborative disassembly line, multiple people and robots collaboratively perform disassembly operations at each workstation. Due to dynamic factors, such as end-of-life product quality and human capabilities, the line balancing problem for the human-robot collaborative disassembly line is a dynamic optimisation problem. Therefore, this paper investigates this problem in detail and commits to finding the evolutionary dynamic optimisation. First, a task-based dynamic disassembly process model is proposed. The model can characterise all feasible task sequences of disassembly operations and the dynamic characteristics of tasks affected by uncertain product quality and human capabilities. Second, a multiobjective optimisation model and a feature-based transfer learning-assisted evolutionary dynamic optimisation algorithm for the dynamic human-robot collaborative disassembly line balancing problem are developed. Third, the proposed algorithm uses the balanced distribution adaptation method to transfer the knowledge of the optimal solutions between related problems in time series to track and respond to changes in the dynamic disassembly environment. Then, it obtains the optimal solution sets in a time-varying environment in time. Finally, based on a set of problem instances generated in this study, the proposed algorithm and several competitors are compared and analysed in terms of performance indicators, such as the mean inverted generational distance and the mean hypervolume, verifying the effectiveness of the proposed algorithm on dynamic human-robot collaborative disassembly line balancing.

APA, Harvard, Vancouver, ISO, and other styles

14

Ingel, Anti, Ilya Kuzovkin, and Raul Vicente. "Direct information transfer rate optimisation for SSVEP-based BCI." Journal of Neural Engineering 16, no. 1 (December 12, 2018): 016016. http://dx.doi.org/10.1088/1741-2552/aae8c7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Yan, Jianhua, and Jun Yu. "Emission image reconstruction based on incremental optimisation transfer algorithm." International Journal of Computational Science and Engineering 6, no. 3 (2011): 146. http://dx.doi.org/10.1504/ijcse.2011.042017.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Maksimenko, Andrei V., Vasilii Mandrouguine, Marina B. Gottikh, Jean-Remi Bertrand, Jean-Pierre Majoral, and Claude Malvy. "Optimisation of dendrimer-mediated gene transfer by anionic oligomers." Journal of Gene Medicine 5, no. 1 (January 2003): 61–71. http://dx.doi.org/10.1002/jgm.319.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Borzacchiello, Domenico, Jose Vicente Aguado, and Francisco Chinesta. "Reduced order modelling for efficient numerical optimisation of a hot-wall chemical vapour deposition reactor." International Journal of Numerical Methods for Heat & Fluid Flow 27, no. 7 (July 3, 2017): 1602–22. http://dx.doi.org/10.1108/hff-04-2016-0153.

Full text

Abstract:

Purpose The purpose of this paper is to present a reduced order computational strategy for a multi-physics simulation involving a fluid flow, electromagnetism and heat transfer in a hot-wall chemical vapour deposition reactor. The main goal is to produce a multi-parametric solution for fast exploration of the design space to perform numerical prototyping and process optimisation. Design/methodology/approach Different reduced order techniques are applied. In particular, proper generalized decomposition is used to solve the parameterised heat transfer equation in a five-dimensional space. Findings The solution of the state problem is provided in a compact separated-variable format allowing a fast evaluation of the process-specific quantities of interest that are involved in the optimisation algorithm. This is completely decoupled from the solution of the underlying state problem. Therefore, once the whole parameterised solution is known, the evaluation of the objective function is done on-the-fly. Originality/value Reduced order modelling is applied to solve a multi-parametric multi-physics problem and generate a fast estimator needed for preliminary process optimisation. Different order reduction techniques are combined to treat the flow, heat transfer and electromagnetism problems in the framework of separated-variable representations.

APA, Harvard, Vancouver, ISO, and other styles

18

Roy, Subhadip, C. S. Vamsi Krishna, N. Ganesh, and A. Kumarasamy. "Optimisation of Header of a Compact Radiator." Applied Mechanics and Materials 877 (February 2018): 327–34. http://dx.doi.org/10.4028/www.scientific.net/amm.877.327.

Full text

Abstract:

The performance of a Plate fin radiator in terms of heat transfer rate and coolant side pressure drop depends significantly on the distribution of coolant through its passages. Uneven flow through the passages i.e. flow maldistribution, can cause local hot spots in the radiator due to high coolant flow in some passages. The flow maldistribution among the passages can be reduced to a large extent by proper optimisation of the header. The present paper investigates the method to optimise the header of a 680 kW radiator to reduce the maldistribution in its passages using Computational Fluid Dynamics (CFD). The analysis was simplified by considering the porous media instead of simulating the exact fin configuration in the radiator. The maximum and absolute values of flow maldistribution factor were considered in this study to determine the effectiveness of the header with respect to flow maldistribution. The flow maldistribution factor was determined based on the individual velocity of coolant in a passage and the average velocity of coolant in all the passages. The methods used for optimisation were rounding the header inlet, tapering the header partially, changing the position of the taper and modifying the end portion of the header. In this paper two parameters, viz., flow maldistribution parameter and absolute maldistribution parameter were considered to measure the maldistribution of a radiator. Due to these optimisations in the header, the maximum and absolute values of maldistribution reduced up to 18% and 45% respectively.

APA, Harvard, Vancouver, ISO, and other styles

19

Taylor, John A., M. Prakash, G. G. Pereira, P. Rohan, Michael Lee, and Barbara Rinderer. "Predicting Dross Formation in Aluminium Melt Transfer Operations." Materials Science Forum 630 (October 2009): 37–44. http://dx.doi.org/10.4028/www.scientific.net/msf.630.37.

Full text

Abstract:

Aluminium melt transfer operations can lead to significant amounts of dross formation as a result of chemical oxidation and physical entrapment processes. It has been suggested that these activities may contribute up to 50% of the total metal loss of ~1% in a typical primary aluminium smelter (i.e. 2,500 tonne/annum (tpa) in a smelter of 500,000tpa output). This is a large financial loss to any company, and also, in the new CO2-conscious era, it also represents a significant carbon footprint to ameliorate. A significant proportion of this metal loss may be prevented by adopting more efficient melt transfer strategies that reduce splashing and turbulence thereby resulting in reduced oxide and therefore dross formation. Optimisation of such systems is normally achieved by trial-and-error approaches, however a clear opportunity exists for rapid optimisation by employing computational modelling to explore the effects of changed equipment design and process conditions, such as tilt speed, spout height, spout geometry, etc. In the present paper, the Smoothed Particle Hydrodynamics (SPH) modeling method is used to predict the amount of oxide generated during molten metal transfers from a 500kg capacity tilting crucible furnace into a heated sow mould. Various conditions were tested. An oxidation model based on skimming trials performed in a laboratory-scale (8kg) oxidation rig is employed in the simulation. The predicted oxide from the simulations is compared against those of the experimental pours. It is anticipated that the validated model will be used for modifying the design and optimizing the operation of various melt transfer operations occurring in the aluminium industry.

APA, Harvard, Vancouver, ISO, and other styles

20

Smith, S. R., T. Taha, and Z. F. Cui. "Using an improved 1D boundary layer model with CFD for flux prediction in gas-sparged tubular membrane ultrafiltration." Water Science and Technology 51, no. 6-7 (March 1, 2005): 69–76. http://dx.doi.org/10.2166/wst.2005.0623.

Full text

Abstract:

Tubular membrane ultrafiltration and microfiltration are important industrial separation and concentration processes. Process optimisation requires reduction of membrane build-up. Gas slug introduction has been shown to be a useful approach for flux enhancement. However, process quantification is required for design and optimisation. In this work we employ a non-porous wall CFD model to quantify hydrodynamics in the two-phase slug flow process. Mass transfer is subsequently quantified from wall shear stress, which was determined from the CFD. The mass transfer model is an improved one-dimensional boundary layer model, which empirically incorporates effects of wall suction and analytically includes edge effects for circular conduits. Predicted shear stress profiles are in agreement with experimental results and flux estimates prove more reliable than that from previous models. Previous models ignored suction effects and employed less rigorous fluid property inclusion, which ultimately led to under-predictive flux estimates. The presented model offers reliable process design and optimisation criteria for gas-sparged tubular membrane ultrafiltration.

APA, Harvard, Vancouver, ISO, and other styles

21

Tong, K. W., C. K. Kwong, and K. M. Yu. "Process optimisation of transfer moulding for electronic packages using artificial neural networks and multiobjective optimisation techniques." International Journal of Advanced Manufacturing Technology 24, no. 9-10 (November 2004): 675–85. http://dx.doi.org/10.1007/s00170-003-1739-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Nadeau, Marie-Charel, Karine Bilodeau, and Lysanne Daoust. "Using web-based training to optimize pediatric palliative care knowledge transfer." Canadian Oncology Nursing Journal 30, no. 1 (January 24, 2020): 31–37. http://dx.doi.org/10.5737/236880763013137.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Abatti, Paulo J., Caio M. Miranda, Márcio A. P. Silva, and Sérgio F. Pichorim. "Analysis and optimisation of three‐coil wireless power transfer systems." IET Power Electronics 11, no. 1 (January 2018): 68–72. http://dx.doi.org/10.1049/iet-pel.2016.0492.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Kotnis, R. A., M. M. Thompson, S. L. Eady, J. S. Budd, P. R. F. Bell, and R. F. L. James. "Optimisation of gene transfer into vascular endothelial cells using electroporation." European Journal of Vascular and Endovascular Surgery 9, no. 1 (January 1995): 71–79. http://dx.doi.org/10.1016/s1078-5884(05)80228-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Dolgui, Alexandre, Nikolai Guschinsky, and Genrikh Levin. "A Decomposition Method for Transfer Line Life Cycle Cost Optimisation." Journal of Mathematical Modelling and Algorithms 5, no. 2 (February 17, 2006): 215–38. http://dx.doi.org/10.1007/s10852-005-9014-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Szénási, Sándor. "Solving the inverse heat conduction problem using NVLink capable Power architecture." PeerJ Computer Science 3 (November 20, 2017): e138. http://dx.doi.org/10.7717/peerj-cs.138.

Full text

Abstract:

The accurate knowledge of Heat Transfer Coefficients is essential for the design of precise heat transfer operations. The determination of these values requires Inverse Heat Transfer Calculations, which are usually based on heuristic optimisation techniques, like Genetic Algorithms or Particle Swarm Optimisation. The main bottleneck of these heuristics is the high computational demand of the cost function calculation, which is usually based on heat transfer simulations producing the thermal history of the workpiece at given locations. This Direct Heat Transfer Calculation is a well parallelisable process, making it feasible to implement an efficient GPU kernel for this purpose. This paper presents a novel step forward: based on the special requirements of the heuristics solving the inverse problem (executing hundreds of simulations in a parallel fashion at the end of each iteration), it is possible to gain a higher level of parallelism using multiple graphics accelerators. The results show that this implementation (running on 4 GPUs) is about 120 times faster than a traditional CPU implementation using 20 cores. The latest developments of the GPU-based High Power Computations area were also analysed, like the new NVLink connection between the host and the devices, which tries to solve the long time existing data transfer handicap of GPU programming.

APA, Harvard, Vancouver, ISO, and other styles

27

Nayak, Byamakesh, Sangeeta Sahu, and Tanmoy Roy Choudhury. "Parameter Estimation of DC Motor using Adaptive Transfer Function Based on Nelder-Mead Optimisation." Indonesian Journal of Electrical Engineering and Computer Science 9, no. 3 (March 1, 2018): 696. http://dx.doi.org/10.11591/ijeecs.v9.i3.pp696-702.

Full text

Abstract:

<p>This paper explains an adaptive method for estimation of unknown parameters of transfer function model of any system for finding the parameters. The transfer function of the model with unknown model parameters is considered as the adaptive model whose values are adapted with the experimental data. The minimization of error between the experimental data and the output of the adaptive model have been realised by choosing objective function based on different error criterions. Nelder-Mead optimisation Method is used for adaption algorithm. To prove the method robustness and for students learning, the simple system of separately excited dc motor is considered in this paper. The experimental data of speed response and corresponding current response are taken and transfer function parameters of dc motors are adapted based on Nelder-Mead optimisation to match with the experimental data. The effectiveness of estimated parameters with different objective functions are compared and validated with machine specification parameters.</p>

APA, Harvard, Vancouver, ISO, and other styles

28

Waczyńska, Joanna, Edoardo Martelli, Edward Karavakis, and Tony Cass. "NOTED: a framework to optimise network traffic via the analysis of data from File Transfer Services." EPJ Web of Conferences 251 (2021): 02049. http://dx.doi.org/10.1051/epjconf/202125102049.

Full text

Abstract:

Network traffic optimisation is difficult as the load is by nature dynamic and seemingly unpredictable. However, the increased usage of file transfer services may help the detection of future loads and the prediction of their expected duration. The NOTED project seeks to do exactly this and to dynamically adapt network topology to deliver improved bandwidth for users of such services. This article introduces, and explains the features of, the two main components of NOTED, the Transfer Broker and the Network Intelligence component. The Transfer Broker analyses all queued and on-going FTS transfers, producing a traffic report which can be used by network controllers. Based on this report and its knowledge of the network topology and routing, the Network Intelligence (NI) component makes decisions as to when a network reconfiguration could be beneficial. Any Software Defined Network controller can then apply these decision to the network, so optimising transfer execution time and reducing operating costs.

APA, Harvard, Vancouver, ISO, and other styles

29

PANG, Mingbao, Xing WANG, and Lixia MA. "Transit Route Planning for Megacities Based on Demand Density of Complex Networks." Promet - Traffic&Transportation 34, no. 1 (February 18, 2022): 13–23. http://dx.doi.org/10.7307/ptt.v34i1.3752.

Full text

Abstract:

The aim of this work is to investigate the simplifica-tion of public transport networks (PTNs) for megacities and the optimisation of route planning based on the de-mand density of complex networks. A node deletion rule for network centre areas and a node merging rule for net-work border areas in the PTN are designed using the de-mand density of complex networks. A transit route plan-ning (TRP) model is established, which considers the demands of direct passengers, transfer passengers at the same stop and transfer passengers at different stops, and aims at maximising the transit demand density of a PTN. An optimisation process for TRP is developed based on the ant colony optimisation (ACO). The proposed method was validated through a sample application in Handan City in China. The results indicate that urban PTNs can be simplified while retaining their local attributes to a great extent. The hierarchical structure of the network is more obvious, and the layer-by-layer planning of routes can be effectively used in TRP. Moreover, the operating efficiency and service level of urban PTNs can be en-hanced effectively.

APA, Harvard, Vancouver, ISO, and other styles

30

Ibsen, Claus H., and David Toal. "InDEStruct: engineering advanced heat transfer systems." Open Access Government 36, no. 1 (October 12, 2022): 234–37. http://dx.doi.org/10.56367/oag-036-10199.

Full text

Abstract:

InDEStruct: engineering advanced heat transfer systems Within the University of Southampton, Atul Singh – also referred to as ESR1 – works on his PhD within a Horizon 2020 Programme project InDEStruct. His scope within this project is to work on optimisation and design methods to improve decision-making in heat exchanger conceptual design, in other words, a more effective design taking into account multidisciplinary aspects of such designs and reducing the experimental cost required to make decisions on new heat exchanger topologies. Open Access Government interviews members of the team of the InDEStruct project, a Horizon 2020 project which works toward inter-disciplinary design approaches for advanced heat transfer systems.

APA, Harvard, Vancouver, ISO, and other styles

31

Birch, RG, and T. Franks. "Development and Optimisation of Microprojectile Systems for Plant Genetic Transformation." Functional Plant Biology 18, no. 5 (1991): 453. http://dx.doi.org/10.1071/pp9910453.

Full text

Abstract:

The recently developed microprojectile method for gene transfer to intact cells has been successfully used to transform plant species including some which previously resisted attempts using Agrobacterium and protoplast mediated techniques. In addition, microprojectile bombardment has already proved uniquely suitable for other applications including direct transformation of organelle genomes and rapid assessment of transient expression of genetic constructs introduced into cells of intact tissues. Here we describe various microprojectile acceleration devices and the steps necessary to develop an effective microprojectile mediated transformation system for any plant species. We ernphasise the need to optimise the delivery of DNA into cells, and to tailor strategies for generating stably transformed plants based on the nature of the target tissue, behaviour in tissue culture, and available marker genes. Patterns of cotransformation and coexpression of introduced genes in stable nuclear transformants generated with microprojectiles are summarised, and other applications including organelle transformation are briefly described. We mention technical limitations to the application of microprojectile-mediated gene transfer which need to be overcome if the method is to achieve its full potential as a near-universal gene transfer technique with exciting applications in basic plant molecular biology and practical plant improvement.

APA, Harvard, Vancouver, ISO, and other styles

32

Wei, Tai-Bao, Hong Liu, Man-Lin Li, and You-Ming Zhang. "A Rapid and High-yield Synthesis of Aryloxyacetyl Hydrazides under Microwave Irradiation and with Phase Transfer Catalysis." Journal of Chemical Research 2005, no. 7 (July 2005): 432–33. http://dx.doi.org/10.3184/030823405774309177.

Full text

Abstract:

A series of aryloxyacetyl hydrazides 4a–l were synthesised under microwave irradiation and phase transfer catalysis conditions. By the optimisation of the reaction conditions, a rapid, high-yield and efficient method for the preparation of aryloxyacetyl hydrazide was given.

APA, Harvard, Vancouver, ISO, and other styles

33

Tecirlioglu, R. Tayfur, Melissa A. Cooney, Ian M. Lewis, Natasha A. Korfiatis, Renee Hodgson, Nancy T. Ruddock, Gábor Vajta, et al. "Comparison of two approaches to nuclear transfer in the bovine: hand-made cloning with modifications and the conventional nuclear transfer technique." Reproduction, Fertility and Development 17, no. 5 (2005): 573. http://dx.doi.org/10.1071/rd04122.

Full text

Abstract:

The aim of the present study was to compare the in vitro and in vivo developmental competence of hand-made cloning (HMC) embryos with the conventional nuclear transfer (NT) method using five somatic cell lines and in vitro-fertilised (IVF; control) embryos. Modifications to the HMC procedure included fusion efficiency optimisation, effect of cytoplasmic volume and cloned embryo aggregation. The developmental competence of blastocysts from each of the treatment groups and cell lines used was assessed following transfer to 345 recipients. Vitrification was also used to enable management of recipient resources and to assess the susceptibility of membranes to cryopreservation following zona removal. Increasing cytoplasmic volume to 150% or aggregating two embryos improved the blastocyst development rate and increased the total cell number. Although HMC embryo transfers established a significantly higher pregnancy rate on Day 30 than fresh IVF or NT embryo transfers, the overall outcome in terms of cloned live births derived from either fresh or vitrified/thawed HMC or NT embryo transfers across the five cell lines did not differ. The birth and continued survival of clones produced with HMC technology with equivalent efficiency to NT shows that it can be used as an alternative method for the generation of cloned offspring in the bovine.

APA, Harvard, Vancouver, ISO, and other styles

34

Chaudhary, Divya, and Bijendra Kumar. "A New Balanced Particle Swarm Optimisation for Load Scheduling in Cloud Computing." Journal of Information & Knowledge Management 17, no. 01 (March 2018): 1850009. http://dx.doi.org/10.1142/s0219649218500090.

Full text

Abstract:

The cloud computing is an augmentative and progressive paradigm that supports a huge amount of characteristics. It demands the optimal allocation of resources to the tasks present in the virtual machines (VMs) system using load scheduling algorithms. The basic objective of load scheduling is to avoid system overloading and thereby achieve higher throughput by maximising VM utilisation along with cost stabilisation. The first come first serve and min–min approaches allocate the load in a static manner and resources are left underutilised. The particle swarm optimisation obtains the motivation from the social behaviour of the flock of birds. It analyses various approaches for load scheduling. The paper proposes an improved balanced load scheduling approach based on particle swarm optimisation (BPSO) to minimise total transfer time and total cost stabilisation. The proposed BPSO approach is compared with the existing approaches used for load scheduling in cloudlets. The efficiency in terms of the transfer time and cost of the proposed algorithm is showcased with the help of simulation results. As evident from the results, the proposed algorithm reduces transfer time and cost than the prevalent algorithms thereby making a system with stable cost.

APA, Harvard, Vancouver, ISO, and other styles

35

Machesa, Mosa, Lagouge Tartibu, and Modestus Okwu. "Prediction of the Oscillatory Heat Transfer Coefficient in Thermoacoustic Refrigerators." Sustainability 13, no. 17 (August 24, 2021): 9509. http://dx.doi.org/10.3390/su13179509.

Full text

Abstract:

Thermoacoustic refrigerators are emerging devices that make use of meaningful high-pressure sound waves to induce cooling. Despite the accelerated progress in the field of thermoacoustics, knowledge of the heat transfer process in the heat exchange of the devices is still developing. This work applies different soft computing techniques, namely, an artificial neural network trained by particle swarm optimisation (ANN-PSO), adaptive neuro-fuzzy inference system (ANFIS), and artificial neural networks (ANNs) to predict the oscillatory heat transfer coefficient in the heat exchangers of a thermoacoustic device. This study provides the details of the parametric analysis of an artificial neural network model trained by particle swarm optimisation. The solution model considers the number of neurons, the swarm population, and the acceleration factors to develop and analyse the architecture of several models. The regression model (R2) and mean squared error (MSE) were used to evaluate the accuracy of the models. The result showed that the proposed soft computing techniques can potentially be used for the modelling and the analysis of the oscillatory heat transfer coefficient with a higher level of accuracy. The result reported in this study implies that the prediction of the OHTC can be considered for the enhancement of thermoacoustic refrigerators performances.

APA, Harvard, Vancouver, ISO, and other styles

36

Gordon, G. T., and B. P. McCann. "Basis for the development of sustainable optimisation indicators for activated sludge wastewater treatment plants in the Republic of Ireland." Water Science and Technology 71, no. 1 (November 24, 2014): 131–38. http://dx.doi.org/10.2166/wst.2014.482.

Full text

Abstract:

This paper describes the basis of a stakeholder-based sustainable optimisation indicator (SOI) system to be developed for small-to-medium sized activated sludge (AS) wastewater treatment plants (WwTPs) in the Republic of Ireland (ROI). Key technical publications relating to best practice plant operation, performance audits and optimisation, and indicator and benchmarking systems for wastewater services are identified. Optimisation studies were developed at a number of Irish AS WwTPs and key findings are presented. A national AS WwTP manager/operator survey was carried out to verify the applied operational findings and identify the key operator stakeholder requirements for this proposed SOI system. It was found that most plants require more consistent operational data-based decision-making, monitoring and communication structures to facilitate optimised, sustainable and continuous performance improvement. The applied optimisation and stakeholder consultation phases form the basis of the proposed stakeholder-based SOI system. This system will allow for continuous monitoring and rating of plant performance, facilitate optimised operation and encourage the prioritisation of performance improvement through tracking key operational metrics. Plant optimisation has become a major focus due to the transfer of all ROI water services to a national water utility from individual local authorities and the implementation of the EU Water Framework Directive.

APA, Harvard, Vancouver, ISO, and other styles

37

Gordon, Glenn T., and Brian P. McCann. "Development of an operational performance indicator system for activated sludge wastewater treatment plants." Water Practice and Technology 10, no. 4 (December 1, 2015): 860–71. http://dx.doi.org/10.2166/wpt.2015.106.

Full text

Abstract:

Sustainable operation, optimisation and performance evaluation of municipal wastewater treatment plants (WwTPs) in Ireland is topical due to the transfer of water and wastewater operational and capital delivery functions from 34 local authorities to a single national water utility in Ireland. This paper describes the development process of a sustainable optimisation indicator (SOI) system for small-to-medium sized activated sludge (AS) WwTPs using a stakeholder-based approach. The SOI system provides a framework of indicators for performance assessment to facilitate continuous sustainable performance improvement of AS WwTP operations. The findings from plant optimisation and stakeholder consultation studies and the mechanism for their contribution to the development of the SOI system indicators and framework are presented. The proposed system is applicable to wide range of stakeholders for the sustainable and improved monitoring, operation and management of AS WwTPs.

APA, Harvard, Vancouver, ISO, and other styles

38

Xie, Xiaolan, Sophie Hennequin, and Iyad Mourani. "Perturbation analysis and optimisation of continuous flow transfer lines with delay." International Journal of Production Research 51, no. 23-24 (March 12, 2013): 7250–69. http://dx.doi.org/10.1080/00207543.2012.762471.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Osman, Hany, and M. F. Baki. "Balancing transfer lines using Benders decomposition and ant colony optimisation techniques." International Journal of Production Research 52, no. 5 (October 15, 2013): 1334–50. http://dx.doi.org/10.1080/00207543.2013.842017.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Li, J., L. G. Chen, and F. R. Sun. "Performance optimisation for endoreversible Carnot refrigerator with complex heat transfer law." Journal of the Energy Institute 81, no. 3 (September 1, 2008): 168–70. http://dx.doi.org/10.1179/174602208x330310.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Liang, Hai-Dong, Qi Long Lu, Shao-An Xue, Michael Halliwell, Tetsuya Kodama, David O. Cosgrove, Hans J. Stauss, Terence A. Partridge, and Martin J. K. Blomley. "Optimisation of ultrasound-mediated gene transfer (sonoporation) in skeletal muscle cells." Ultrasound in Medicine & Biology 30, no. 11 (November 2004): 1523–29. http://dx.doi.org/10.1016/j.ultrasmedbio.2004.08.021.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Durrant, James R., Saif A. Haque, and Emilio Palomares. "Towards optimisation of electron transfer processes in dye sensitised solar cells." Coordination Chemistry Reviews 248, no. 13-14 (July 2004): 1247–57. http://dx.doi.org/10.1016/j.ccr.2004.03.014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Farahmand, H., M. Rashidinejad, A. Mousavi, A. A. Gharaveisi, M. R. Irving, and G. A. Taylor. "Hybrid Mutation Particle Swarm Optimisation method for Available Transfer Capability enhancement." International Journal of Electrical Power & Energy Systems 42, no. 1 (November 2012): 240–49. http://dx.doi.org/10.1016/j.ijepes.2012.04.020.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Kärnä, Aki, Mika Järvinen, and Timo Fabritius. "Supersonic Lance Mass Transfer Modelling." Materials Science Forum 762 (July 2013): 686–90. http://dx.doi.org/10.4028/www.scientific.net/msf.762.686.

Full text

Abstract:

Numerical models of steelmaking processes are essential tools for process development and optimisation. A usable model is detailed enough to provide reliable results and not to slow to run. In order to make a fast and accurate model of a single process, all model parameters must be known well. This can be achieved by first simulating detailed models from which the parameters are obtained.In many converter processes oxygen is delivered into melt by supersonic top lance blowing. When such process is modeled, a model describing mass transfer from the lance into melt surface is needed.This paper describes numerical modeling of mass transfer by supersonic lances. Lance flow CFD models are used to determine mass transfer coefficients for typical lance applications. Models are validated with supersonic nozzle data and wall impinging jet mass transfer data from literature. The results are later used in fast process simulation models.

APA, Harvard, Vancouver, ISO, and other styles

45

Dong, D., T. D. Humphries, D. A. Sheppard, B. Stansby, M. Paskevicius, M. V. Sofianos, A. L. Chaudhary, M. Dornheim, and C. E. Buckley. "Thermal optimisation of metal hydride reactors for thermal energy storage applications." Sustainable Energy & Fuels 1, no. 8 (2017): 1820–29. http://dx.doi.org/10.1039/c7se00316a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Coates, Paul, and Yusuf Arayici. "Optimization of the BIM Authoring Tool in Architectural Practice." International Journal of 3-D Information Modeling 1, no. 2 (April 2012): 30–45. http://dx.doi.org/10.4018/ij3dim.2012040103.

Full text

Abstract:

Construction companies are facing barriers and challenges in Building Information Modelling (BIM) adoption as there is no clear guidance or best practice studies from which they can learn and build up their capacity for BIM use to increase productivity, efficiency, and quality. One of the key challenges in the BIM adoption is the ability of optimisation of a selected BIM authoring tool according to a company’s needs and requirements. This paper explains the approach for the optimisation of BIM technology selected in a Knowledge Transfer Partnership (KTP) project, undertaken between the University of Salford and John McCall Architects. The BIM implementation approach in the KTP used a socio-technical view that considered both the implementation of technology and its socio-cultural environment. The adoption and optimisation used the action research oriented qualitative and quantitative research for discovery, comparison, and experimentation it provided for “learning by doing.”

APA, Harvard, Vancouver, ISO, and other styles

47

Van den Heuvel, J. C., P. G. Verschuren, and S. P. P. Ottengraf. "Acceleration of mass transfer in loop reactors." Water Science and Technology 36, no. 1 (July 1, 1997): 311–19. http://dx.doi.org/10.2166/wst.1997.0069.

Full text

Abstract:

Gas bubbles entrapped in biocatalyst particles subjected to hydrostatic pressure oscillations, e.g. during recirculation in loop reactors, will induce intraparticle liquid flows, and thereby enhance mass transfer in excess of diffusion. This ‘breathing particle’ mechanism was demonstrated in methanogenic granules, and led to a typical activity increase of 13% compared with static pressure conditions. From these experimental results and model predictions, it is concluded that convective acceleration of mass transfer in gas-producing systems offers interesting perspectives for the optimisation of biofilm processes in loop reactors. Development of special carrier materials with a central gas-filled cavity could lead to a novel type of bioreactor in which liquid flow through the biocatalyst is decisive.

APA, Harvard, Vancouver, ISO, and other styles

48

Chen, Zixuan, Ahmed W. A. Hammad, Imriyas Kamardeen, and Assed Haddad. "Optimising Window Design on Residential Building Facades by Considering Heat Transfer and Natural Lighting in Nontropical Regions of Australia." Buildings 10, no. 11 (November 17, 2020): 206. http://dx.doi.org/10.3390/buildings10110206.

Full text

Abstract:

Windows account for a significant proportion of the total energy lost in buildings. The interaction of window type, Window-to-Wall Ratio (WWR) scheduled and window placement height influence natural lighting and heat transfer through windows. This is a pressing issue for nontropical regions considering their high emissions and distinct climatic characteristics. A limitation exists in the adoption of common simulation-based optimisation approaches in the literature, which are hardly accessible to practitioners. This article develops a numerical-based window design optimisation model using a common Building Information Modelling (BIM) platform adopted throughout the industry, focusing on nontropical regions of Australia. Three objective functions are proposed; the first objective is to maximise the available daylight, and the other two emphasize undesirable heat transfer through windows in summer and winter. The developed model is tested on a case study located in Sydney, Australia, and a set of Pareto-optimum solutions is obtained. Through the use of the proposed model, energy savings of up to 8.57% are achieved.

APA, Harvard, Vancouver, ISO, and other styles

49

Moshood, Taofeeq Durojaiye, Funmilayo Ebun Rotimi, and James Olabode Bamidele Rotimi. "Knowledge transfer and management in the construction industry: Trends and future challenges." International Journal of Construction Supply Chain Management 12, no. 1 (July 31, 2022): 72–102. http://dx.doi.org/10.14424/ijcscm120122-72-102.

Full text

Abstract:

This study aims to determine the current issues associated with the transfer of knowledge in the construction industry published between 1987 and December 2021 to provide insights and ideas for future research. A total of 1240 publications were analysed to offer metadata analysis, and these papers were extracted from the Scopus database. The insights gained from analysing papers from Scopus databases are presented along with classifications of the literature based on content analyses, including conceptual understanding, barriers and facilitators, a collaborative effort with knowledge management and other optimisation models, and evaluation of knowledge management practices and performance. The study's findings show a declining trend in research on drivers or obstacles analysis of knowledge management. In contrast, there is a growing trend in applying mathematical optimisation models to enhance decision-making in pursuing knowledge management performance. Furthermore, the study's findings reveal a steady increase in assessing knowledge management techniques and performance over time. Contributions by disciplines are identified, and the most significant authors, leading journals, leading nations, leading contributing institutions, and leading contributing institutions. The study's results and future research possibilities open up a new channel for further inquiry and contribution to this subject.

APA, Harvard, Vancouver, ISO, and other styles

50

Dalton, Neal, Christopher P. Gordon, Timothy P. Boyle, Nicholas Vandegraaf, John Deadman, David I. Rhodes, Jonathan A. Coates, Stephen G. Pyne, Paul A. Keller, and John B. Bremner. "The discovery of allyltyrosine based tripeptides as selective inhibitors of the HIV-1 integrase strand-transfer reaction." Organic & Biomolecular Chemistry 14, no. 25 (2016): 6010–23. http://dx.doi.org/10.1039/c6ob00950f.

Full text

Abstract:

From library screening of synthetic antimicrobial peptides, an O-allyltyrosine-based tripeptide HIV-1 integrase (IN) inhibitor was identified. Subsequent optimisation afforded an analogue exhibiting an IC₅₀ value of 2.5 μM.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Transfer Optimisation'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles