Academic literature on the topic 'Design calculations'

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Journal articles on the topic "Design calculations"

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DIAKUN, JAROSLAW. "Calculation procedures - simulation, optimization and design calculations." Polimery 44, no. 06 (June 1999): 390–96. http://dx.doi.org/10.14314/polimery.1999.390.

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A. Zh. Kassenov, A. S. Yanyushkin, A. V. Mazdubay, D. A. Iskakova, and T. L. Yevtushenko. "DESIGN OF SHAPED CUTTERS." Science and Technology of Kazakhstan, no. 3.2021 (September 27, 2021): 27–34. http://dx.doi.org/10.48081/xqgq2851.

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The article proposes an algorithm for designing round shaped cutters by graphical and analytical methods. Depending on the shaped profile of the part, this algorithm systematizes the calculation and allows you to apply a unified approach and easily automate it. The purpose of the design is the possibility of automating and reducing the calculation time of shaped cutters and is based on determining the radii of the nodal points of the shaped cutter through projections between the nodal points on the horizontal plane. A feature of the proposed algorithm for calculating shaped cutters is the consistency and the possibility of automating calculations that are simple and visual.
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Samiev, Luqmon, Khumora Jalilova, Sirojiddin Jalilov, Jamila Xusanova, and Dilnoza Mamatova. "Draft sprinkler irrigation system design development." E3S Web of Conferences 365 (2023): 03024. http://dx.doi.org/10.1051/e3sconf/202336503024.

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This article shows the analysis of the parameters of a sprinkler irrigation system following different natural conditions (climate, soil, and hydrogeological) and their analysis in the implementation of the hydraulic calculation and design. According to the majority of literature, several calculations are made for the pressure and discharge during sprinkler irrigation. In the system under analysis, calculations are made on the irrigation processes of pipes and their outflow. It uses Google Earth and AutoCAD. In the hydraulic calculation of the system parameters, it was determined that the area's natural conditions are important and that changes and additions should be made to the calculations.
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Sasongko, Anky Ismas. "Billing Management System Design for Cellular Phone Network Practicum Module 2.4 Ghz WiFi Transmission." Jurnal Jartel: Jurnal Jaringan Telekomunikasi 6, no. 1 (May 7, 2018): 17–22. http://dx.doi.org/10.33795/jartel.v6i1.133.

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This study aims to design and build a VoIP billing server that is used for calculating the cost of telephone conversations and designing a VoIP practicum module for students.The research method was carried out by conducting literature studies, network design planning, device configuration, determination of billing parameters and VoIP call testing to determine call quality and VoIP billing function.The result of this thesis is a telephone billing system application that is used to calculate VoIP-based telephone costs and the softphone application as a telecommunications medium. Where the billing server is well configured with the softphone application, the softphone application uses the simcard as data verification provided by the admin. The results of testing the success of telephone charges when 2 clients make calls with an initial pulse of 100 Rupiah, the result is a calculation of 100% between manual calculations and program calculations. And when the test was carried out, making calls more than 2 clients produced different data between manual and program calculations with an average of 101.75, the program calculation was on manual calculation of 100.The results of this difference were only for the first and second callers, the next caller had the results which is the same as manual calculation.
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M. Rzaeva, Sabina, Lida Lida, Tatiana V. Rzaeva, and Svetlana V. Zonina. "A Variation Study of the Bearing Designs of a Covering of the Designed Building of the II Level of Responsibility Span of 24 m." International Journal of Engineering & Technology 7, no. 4.36 (December 9, 2018): 1039. http://dx.doi.org/10.14419/ijet.v7i4.36.24949.

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In this work were considered the sequence of calculation of a metal-wooden farm of a segment outline, according to the set of rules "Wooden glued and whole wooden designs" Construction Norms and Regulations II - 25 - 80 (the joint venture 64.13330 - 2011) [1], "Steel structures" Construction Norms and Regulations of II - 23 - 81 (the joint venture 64.13330 - 2011) and Construction Norms and Regulations 2.01.07-85 "Loadings and influences" [2] for calculation of a metal farm with a trapezoid outline.The comparative analysis of calculations of loading of a body weight of farms, calculation of evenly distributed constant of the loading located on all flight, calculation of distributive snow loading is carried out. Settlement efforts in elements of farms are determined by method of cutting knots, longitudinal forces of N and the selections and check of sections of farms bending M. Derived moments are calculated in panels of the top belt. Owing to, the above-stated calculations a positive assessment of a possibility of design of the building with flight of 24 m is given, when calculating of the bearing designs on the greatest possible loadings where as a covering are offered metal-wooden segment and metal a trapezoid outline of a farm. According to the carried-out calculations, sections are picked up truly and undergo testing on all groups of limit conditions of building constructions, but after calculation of a consumption of material on designs of farms, it turned out that it is economically effective for design of the bearing designs of coverings to use a metal-wooden farm.
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Zámečníková, Tereza, Tomáš Mareš, Viktor Kulíšek, Zdeněk Padovec, Anna Malá, and Bohumil Kropík. "A Novel Semi-Analytical Approach to the Assessment of the Equivalent Stiffness of a Beam." Strojnícky časopis - Journal of Mechanical Engineering 72, no. 2 (November 1, 2022): 247–70. http://dx.doi.org/10.2478/scjme-2022-0033.

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Abstract This paper introduces several new approaches to stiffness calculation of the composite beam with a circular cross-section. The paper poses the problem of calculating the stiffness of the fibre-reinforced winded beam and introduces a new way of stiffness calculation. The novel semi-analytical calculation represents an approach that is less time consuming than conventional calculation methods or FEA methods. The expected application of the new method of calculation is in preliminary design and design calculations.
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Karedin, Volodymyr, and Nadiya Pavlenko. "CREDO RADON UA – INFORMATION MODEL FOR CALCULATION OF ROAD CONSTRACTION." Avtoshliakhovyk Ukrayiny, no. 3 (259) ’ 2019 (October 17, 2019): 34–42. http://dx.doi.org/10.33868/0365-8392-2019-3-259-34-42.

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CREDO RADON UA software provides an automated calculation of the strength of the pavement structures of non-rigid and rigid types, as well as the calculation of the strengthening of existing structures. In the article, one can see the main features and functionality of the CREDO RADON UA software, the main points in the calculations according to the new regulations. Information support of the design process includes necessary databases, informational and helping materials that make up the full support of the pavement design process. The concept of CREDO RADON UA 1.0 software is made on the use of elasticity theory methods in calculations of initial information models of pavements. Performing optimization calculations, the roadwear in CREDO RADON UA is designed in such a way that no unacceptable residual deformation occurs under the influence of short-term dynamic or static loading in the working layer of the earth bed and in the structural layers during the lifetime of the structure. The calculation algorithms were made in accordance with the current regulatory documents of Ukraine. CREDO RADON UA software allows user to create information bases on road construction materials and vehicles as part of the traffic flow for calculations. The presented system of automated modeling makes it easier for the customer to control the quality of design solutions, to reasonably assign designs to layers of reinforcement, to quickly make comparisons of calculations of different designs for the optimal use of allocated funds. Prospects for further improvement of the program should be the results of theoretical and experimental studies on filling the databases, which are used as information support for automated design of road structures. Keywords: CREDO RADON UA, road, computer-aided design, repair project, road pavement, strengthening, construction, rigid pavement, elasticity module, a transport stream, calculation method, information support, dynamic or static loading.
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Musiienko, Igor. "Automated calculation of road reinforced con-crete round culverts for operation in free-flow mode in program UKRRVS21." Bulletin of Kharkov National Automobile and Highway University, no. 93 (May 27, 2021): 112–17. http://dx.doi.org/10.30977/bul.2219-5548.2021.93.0.112.

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The modern approach to the design of road culverts involves the use of computeraided design (CAD). In design organizations of Ukraine software products of the Minsk company CREDO are being used for calculations of capacity of culverts by GRIS_T. Since 2019, the UKRRVS program is being developed to calculate culverts of road structures according to Ukrainian standards. At the moment, the program has the calculation of stormwater runoff according to MADI/SoyuzDorProekt formula and meltwater runoff (according the Road Handbook). In 2020, a new stage of automated calculation of road culverts started - calculations of capacity. The article presents the automated calculation of road reinforced concrete round culverts for pressureless operation. Goal. It is proposed to automate the calculation of road reinforced concrete round culverts for pressureless oper-ation. Methodology. The current methods for calculating the throughput of reinforced concrete road culverts have been used. Programming was carried out in the C# language using object-oriented programming. Results. The state of affairs in the auto-mation of hydraulic calculations in the road industry in accordance with Ukrainian standards was analyzed. It was concluded that at the moment the production uses the GRIS program of the CREDO company. The UKRRVS program is being developed. In this program, the issue of automating the calculation of the throughput of round culverts for operation in freeflow mode is relevant. The question of the methodology and algorithmization of this calculation, coding and interface support has been resolved. Practical value. The algorithm for calculating road culverts has been developed. A part of calculating the throughput of road culverts has been created in the UKRRVS program. This part covers the most com-mon group - round reinforced concrete culverts for freeflow operation. Originality. The interface has been created for the automation program for calculating road culverts. When you click the button “Round reinforced concrete pipes” in the main menu of the program UKRVS 21, the window “Calculation of a round reinforced concrete pipe operating in pressureless mode” opens. The calculation consists of three parts: the area of formation of initial data, the button “Calculate”, and the area of output of results of calculations. The area of formation of ini-tial data consists of 7 points. The area of the results of calculation of round reinforced concrete road cul-verts working in a pressureless mode consists of 14 points.
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Vaishampayan, Omkar, Akshay Joshi, and Savio Pereira. "A Review on Design of Hydraulic Disc Brakes and Calculations." International Journal of Scientific Research 3, no. 2 (June 1, 2012): 161–63. http://dx.doi.org/10.15373/22778179/feb2014/52.

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Kumar, R. Sateesh, J. Deepak, and O. Srinivas T. Prashanth. "Heat Load Calculations and Duct Design for Commercial Building G2." International Journal of Trend in Scientific Research and Development Volume-3, Issue-3 (April 30, 2019): 1253–58. http://dx.doi.org/10.31142/ijtsrd23309.

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Dissertations / Theses on the topic "Design calculations"

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Hadi, M. N. S. "Calculation processing : A system for the manipulation of engineering design calculations." Thesis, University of Leeds, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234767.

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Olofsson, Erik. "Chassis calculations for Frame design." Thesis, Linköpings universitet, Mekanik och hållfasthetslära, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-121848.

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This is a Masters Thesis report of a project carried out at Scania AB in Södertälje. The project concerns rationalizing Chassis calculations for use in truck Frame design. The subject for analysis is a six-wheeled articulated truck, and the load cases under study is Lateral Loading, Frame Torsion and Vertical Load on Kingpin. Making robust deformation and stress models with a calculation time sufficiently short and accuracy consistently high for efficient design work is an arduous task. This report presents several approaches to tackle this type of problem. By means of simplifying contemporary modeling approaches and methods and automating the setup process, a method that enables short calculation iterations on a chassis frame of a truck is achieved. This is done using the Catia GAS framework in conjunction with several other licences commonly used by designers.
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Li, Sa. "Materials Design from ab initio Calculations." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4274.

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Strömberg, Eric. "Faster Optimal Design Calculations for Practical Applications." Thesis, Uppsala universitet, Institutionen för farmaceutisk biovetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-150802.

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PopED is a software developed by the Pharmacometrics Research Group at the Department of Pharmaceutical Biosiences, Uppsala University written mainly in MATLAB. It uses pharmacometric population models to describe the pharmacokinetics and pharmacodynamics of a drug and then estimates an optimal design of a trial for that drug. With optimization calculations in average taking a very long time, it was desirable to increase the calculation speed of the software by parallelizing the serial calculation script. The goal of this project was to investigate different methods of parallelization and implement the method which seemed the best for the circumstances.The parallelization was implemented in C/C++ by using Open MPI and tested on the UPPMAX Kalkyl High-Performance Computation Cluster. Some alterations were made in the original MATLAB script to adapt PopED to the new parallel code. The methods which where parallelized included the Random Search and the Line Search algorithms. The testing showed a significant performance increase, with effectiveness per active core rangingfrom 55% to 89% depending on model and number of evaluated designs.
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Elkelany, Khaled. "Design Of Enhanced Piezoelectric Materials From Quantum Chemical Calculations." Thesis, Pau, 2016. http://www.theses.fr/2016PAUU3001/document.

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Une analyse exhaustive de la piézoélectricité a été réalisée par la modélisation moléculaire basée sur l'application des principes de la mécanique quantique. La calibration de la méthode et des paramètres du calcul est d'abord examinée en comparant les résultats calculés concernant les oxydes de silicium et de Germanium à leurs homologues expérimentaux. Ensuite, les paramètres microscopiques qui influencent chaque contribution de cette propriété macroscopique de réponse sont distinctement rationalisés. Enfin, après la rationalisation de la propriété piézoélectrique, la conception de matériaux montrant un effet piézoélectrique élevé a été tentée. Nous avons montré que la grande piézoélectricité induite par un dopage dans le plan du graphène tendra vers une valeur unique, ni nulle ni infinie, et de façon indépendante de la nature physique ou chimique particulière du défaut. L'induction d'une piézoélectricité hors du plan du graphène en brisant sa planéité selon la direction-z est également étudiée. La réponse piézoélectrique obtenue est largement améliorée par rapport à la limite finie de la piézoélectricité dans le plan, mais aux grandes concentrations du défaut seulement. En effet, contrairement à la composante dans le plan de la piézoélectricité, la composante hors du plan, dépend de la nature du défaut et diminue jusqu'à tendre vers zéro à dilution infinie
An exhaustive analysis of the technologically important piezoelectric phenomena is here done by applying quantum chemical simulations. At first, the calibration of the assumed computational scheme is examined by comparing our calculated piezoelectric properties of the well-known piezoelectric quartz to their experimental counterparts. Secondly, the microscopic parameters that influence each contribution of piezoelectric macroscopic property are distinctly rationalized. After the rationalization of the piezoelectric property, the design of materials that exhibiting a high piezoelectric effect has been attempted. It has been shown that a large in-plane piezoelectricity induced in graphene by doping can be acquired by including any in-plane defect(s). Moreover, in the limit of vanishing defect concentration, the piezoelectric response tends toward a unique value, neither null nor infinite, regardless of the particular chemical or physical nature of the defect. The induction of an out-of-plane piezoelectricity in graphene by breaking its planarity through the non-periodic z-direction is stated, where the obtained piezoelectric response is largely improved compared to the finite in-plane piezoelectric limit, at however higher concentration of the defect. Contrarily to what has been discussed for the in-plane piezoelectric effect, the out-of-plane one eventually vanishes as far as the limit of infinite defect dilution is reached, and so it relies ultimately on the nature of the defect
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Aldeghi, Matteo. "Free energy calculations in drug design : application to bromodomains." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:d36a729c-4385-408d-9a21-92dfa339cf3c.

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Computer simulations of biomolecules have been improving at a pace that is faster than Moore's law for microprocessors in the last few decades. Thanks to advances in theory, hardware, and algorithms it is increasingly possible to study biological processes at relevant spatial and temporal resolutions, and to exploit simulation for quantitative predictions. One area that can potentially benefit greatly from such computational predictions is that of drug discovery. Since the inception of the concept of rational drug design, the prediction of how tightly an organic molecule binds to a macromolecular partner has been one of the chief objectives of computational chemistry. Computers already play a fundamental support role during the drug discovery process, and today many novel approaches that aim at studying the details of drug binding and predicting binding affinity are being actively investigated. In this thesis, I report a series of studies that aim to evaluate the potential utility of free energy calculations based on molecular simulations for drug design. In particular, I focus on the prediction of small-molecule binding affinities to the epigenetic target of bromodomains. Bromodomains are small protein modules that have been found in 46 human proteins involved in gene regulation. Given their role in various diseases, in particular cancer and inflammation, a number of bromodomain inhibitors are currently being investigated both in the laboratory and the clinic. Here, it is shown how thorough calculations based on explicit-solvent simulations and all-atom force fields can accurately reproduce binding free energies for this protein family. Rigorous free energy calculations are also compared to more approximate methods based on the post-processing of the simulation trajectories in implicit solvent. Finally, a recently proposed method for the estimation of water binding free energy is employed to study water displaceability from bromodomain binding pockets.
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Broderick, Scott R. "Statistical learning for alloy design from electronic structure calculations." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3369815.

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Anpalahan, Peethamparam. "Design of transverse flux machines using analytical calculations&finite element Analysis." Licentiate thesis, KTH, Electrical Systems, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1227.

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Wang, Ziyun. "Towards the rational design of heterogeneous catalysts using density functional theory calculations." Thesis, Queen's University Belfast, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.696331.

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Heterogeneous catalysis is crucial in many areas of the chemical and energy industries, which was estimated to be used in 90% of all chemical processes despite its importance, most catalysts were found using trial-and-error approaches. Methods that can design new catalysts rationally is highly necessary. One promising approach is to take the advantage of the increasing computational capacity and the state-of-the-art calculation method to screen and design new heterogeneous catalysts. Such an approach requires not only a deep understanding of reaction mechanisms and activities in heterogeneous catalysis, but also rational design schemes. Therefore, in the first half part of the thesis, first-principle calculations within the Density Functional Theory (DFT) framework together with micro-kinetic modelling were used to understand the mechanisms and activities in heterogeneous catalysis. In the second half, some design schemes were proposed including the multi-phase surface design, gradient based optimization and inverse design using activity contribution equation.
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Ross, Gregory A. "Improving rapid affinity calculations for drug-protein interactions." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:62ccfb5e-10f1-40ec-9a2b-936277944d87.

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The rationalisation of drug potency using three-dimensional structures of protein-ligand complexes is a central paradigm in medicinal research. For over two decades, a major goal has been to find the rules that accurately relate the structure of any protein-ligand complex to its affinity. Addressing this problem is of great concern to the pharmaceutical industry, which uses virtual screens to computationally assay up to many millions of compounds against a protein target. A fast and trustworthy affinity estimator could potentially streamline the drug discovery process, reducing reliance on expensive wet lab experiments, speeding up the discovery of new hits and aiding lead optimization. Water plays a critical role in drug-protein interactions. To address the often ambiguous nature of water in binding sites, a water placement method was developed and found to be in good agreement with X-ray crystallography, neutron diffraction data and molecular dynamics simulations. The method is fast and has facilitated a large scale study of the statistics of water in ligand binding sites, as well as the creation of models pertaining to water binding free energies and displacement propensities, which are of particular interest to medicinal chemistry. Structure-based scoring functions employing the explicit water models were developed. Surprisingly, these attempts were no more accurate than the current state of the art, and the models suffered from the same inadequacies which have plagued all previous scoring functions. This suggests a unifying cause behind scoring function inaccuracy. Accordingly, mathematical analyses on the fundamental uncertainties in structure-based modelling were conducted. Using statistical learning theory and information theory, the existence of inherent errors in empirical scoring functions was proven. Among other results, it was found that even the very best generalised structure-based model is significantly limited in its accuracy, and protein-specific models are always likely to be better. The theoretical framework developed herein hints at modelling strategies that operate at the leading edge of achievable accuracy.
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Books on the topic "Design calculations"

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Vanvelet, H. E. Bridge calculations. [S.l: s.n., 1986.

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Engineers, Society of Automotive, ed. Gear handbook: Design and calculations. Oxford: Butterworth-Heinemann, 1992.

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Brown, Thomas H. Marks' calculations for machine design. New York: McGraw-Hill, 2005.

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McIntosh, G. Design stressing: Basic strength calculations for structural design. [Great Britain?]: [G. McIntosh?], 1988.

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Building Services Research and Information Association. and European Commission. Directorate-General for Energy and Transport., eds. Climatic ceilings: Technical note: design calculations. Bracknell: BSRIA, 2001.

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Fridman, A. L. Calculations for fishing gear designs. Farnham: Published by arrangement with the Food and Agriculture Organization of the United Nations by Fishing News, 1986.

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Reddy, M. Rami, and Mark D. Erion. Free energy calculations in rational drug design. New York: Springer, 2011.

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Belousov, Boris N. Heavy-duty wheeled vehicles: Design, theory, calculations. Warrendale, Pennsylvania, USA: SAE International, 2014.

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Belousov, Boris Nikolaevich, and Sergey D. Popov. Heavy-Duty Wheeled Vehicles: Design, Theory, Calculations. Warrendale, PA: SAE International, 2014. http://dx.doi.org/10.4271/r-419.

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Practical design calculations for groundwater and soil remediation. Boca Raton: Lewis Publishers, 1999.

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Book chapters on the topic "Design calculations"

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Hussein, Esam M. A. "Design Calculations." In Handbook on Radiation Probing, Gauging, Imaging and Analysis, 719–37. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/0-306-48403-x_7.

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Simon, George P. "Technical Design Calculations." In Ion Exchange Training Manual, 78–111. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-015-7440-2_7.

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Grant, Casey C. "Halon Design Calculations." In SFPE Handbook of Fire Protection Engineering, 1450–82. New York, NY: Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4939-2565-0_43.

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Farkas, József, and Károly Jármai. "Cost Calculations." In Optimum Design of Steel Structures, 29–41. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36868-4_3.

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Kratz, Robert, and Peter Wyder. "Analytical Calculations." In Principles of Pulsed Magnet Design, 35–87. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04969-3_2.

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Richards, Keith L. "Keys and Spline Calculations." In Design Engineer's Sourcebook, 611–22. Boca Raton : Taylor & Francis, CRC Press, 2018.: CRC Press, 2017. http://dx.doi.org/10.1201/9781315367514-22.

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Madl, Andrew. "Landform Analytics and Calculations." In Parametric Design for Landscape Architects, 51–65. Milton Park, Abingdon, Oxon ; New York, NY : Routledge, 2021.: Routledge, 2021. http://dx.doi.org/10.4324/9780429202957-3.

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Muenz, Larry R. "Power Calculations for Statistical Design." In Handbook of Research Methods in Cardiovascular Behavioral Medicine, 615–33. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4899-0906-0_38.

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Martin, Melissa, and Patton H. McGinley. "Conventional Shielding Design." In Shielding Techniques. Medical Physics Publishing, 2020. http://dx.doi.org/10.54947/9781951134006_ch2.

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Shielding Design Goals and Occupancy; Calculation Methods; Primary Barrier Calculations; Secondary Barrier Calculations; Flattening Filter Free (FFF) Accelerators; Workload Examples; Primary Barrier Width Calculation; Primary Beam Dose Rate vs. Beam Angle; Tapered Primary Barrier Ceiling;
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"Design Calculations." In River Training and Sediment Management with Submerged Vanes, 71–88. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/9780784409817.ch04.

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Conference papers on the topic "Design calculations"

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Lilley, David G. "Structural Fire Calculations." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/cie-4428.

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Abstract Information and calculations are given for estimating fire growth in structural fires. Heat release rates from flames, fire growth, ignition of nearby items, and the possibility of flashover are all topics of concern. Empirical equations are given and calculations are exhibited to illustrated these aspects of structural fire behavior.
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Malacara, Daniel. "Diffraction Performance Calculations in Lens Design." In International Lens Design. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/ild.1990.lma1.

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The wavefront deformation may be calculated in two different manners, one is by computing the optical path difference for the rays while computing the spot diagram. The other is by obtaining the wavefront from integration of the transverse aberrations. Both of these methods have their own limitations and advantages.
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Velzel, Christiaan H. F., Bob Kruizinga, and Jacob L. F. de Meijere. "Lens design and tolerance calculations." In Lens and Optical Systems Design. SPIE, 1993. http://dx.doi.org/10.1117/12.142825.

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Murphy, Brian T. "Improved Rotordynamic Unbalance Response Calculations Using the Polynomial Method." In ASME 1993 Design Technical Conferences. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/detc1993-0180.

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Abstract For rotordynamic calculations the conventional transfer matrix (CTM) method is known for its ease of application and speed of execution. This is true for eigenvalue analyses as well as forced response calculations. In 1983, Murphy and Vance significantly improved the conventional transfer matrix method for eigenvalues by developing Polynomial Transfer Matrix (PTM) method. For eigenvalue calculations this resulted in one to two orders of magnitude increase in calculation speed, and eigenvalues could be found without missing any modes. This paper extends the polynomial method to forced response calculations. The polynomial method “compiles” a polynomial representation of a rotor bearing system. Responses at many frequency increments can then be computed with amazing rapidity. Similar to the case of eigenvalue calculations, an automatic dynamic condensation feature helps the PTM attain nearly a tenfold increase in speed over the CTM method. This paper details the polynomial method applied to forced response calculations. Two example calculations are presented to compare the PTM to the CTM method and finite element method. All computations were carried out on an IBM-PC compatible computer.
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Johannesson, H. L. "Computer Graphics and Analysis in Elastomeric Compact Seal Design." In ASME 1987 Design Technology Conferences. American Society of Mechanical Engineers, 1987. http://dx.doi.org/10.1115/detc1987-0048.

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Abstract The use of advanced calculations are necessary in elastomeric seal design if the today situation of “trial and error” shall be avoided. In order to make it easy for the designer to carry out these calculations, computer graphics can be used together with calculation programs. In this work it is shown how a general purpose turn-key CAD-system can be used together with complex calculation programs in elastomeric compact seal design. It is demonstrated how communication between the CAD-system and the calculation program can be established with the use of the “graphic application programming language” that must be available within the CAD-system. The suggested computer aided design procedure is especially suitable for products like seals, which have simple geometry but require complicated calculations.
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Malacara-Hernandez, Daniel. "Diffraction performance calculations in lens design." In 1990 Intl Lens Design Conf, edited by George N. Lawrence. SPIE, 1991. http://dx.doi.org/10.1117/12.47882.

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Perrin, Jean-Claude. "Using exact equations in PSF calculations." In Optical Systems Design and Production, edited by Fritz Merkle. SPIE, 1999. http://dx.doi.org/10.1117/12.360058.

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Hollister, Stephen M. "A New Paradigm for Ship Design Calculations." In SNAME 5th World Maritime Technology Conference. SNAME, 2015. http://dx.doi.org/10.5957/wmtc-2015-086.

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A new model for ship design calculations is presented that separates the graphical user interface (GUI) from the calculations (CALC). Design programs can now be defined as more than one interactive graphical user interface tied to one calculation. Several different GUIs can be created for one CALC engine and one GUI can be created to launch several CALC engines in sequence. The GUI of choice is a spreadsheet due to its availability, programmable customization, powerful analysis tools, cross-platform capability, and open code environment.
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Liu, C. Y., W. R. Chen, and R. W. Mayne. "An Approach to Dynamic Distance Calculations for Obstacle Avoidance Problems." In ASME 1991 Design Technical Conferences. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/detc1991-0165.

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Abstract This paper presents a distance calculation method which can be used in machine motion planning optimizations where interference is a concern. Dynamic distance calculations are discussed which use the quadratic programming method combined with an approximate swept volume approach. Distance-to-contact calculations can be obtained for both interference and non-interference situations. The swept volume of a moving polygon is constructed through a series of overlapped swept volume segments. Each of the swept volume segments is efficiently developed by checking the inner products of polygon outward boundary normals with velocity vectors for polygon vertices. Two dimensional examples of distance-to-contact computations and robot path planning problems are presented for a sample three link robot with three rotational joints.
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Koch, Donald G. "Simplified irradiance/illuminance calculations in optical systems." In Lens and Optical Systems Design. SPIE, 1993. http://dx.doi.org/10.1117/12.142808.

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Reports on the topic "Design calculations"

1

Gerassimenko, M. Test Design Calculations II. Office of Scientific and Technical Information (OSTI), July 2000. http://dx.doi.org/10.2172/793924.

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Job, P. K. Rachet Door Shielding Design Calculations. Office of Scientific and Technical Information (OSTI), July 2018. http://dx.doi.org/10.2172/1493201.

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Kosenko, S. A., I. A. Kotova, I. V. Nikitin, and I. K. Sokolovskiy. Railway track. Calculations and design. Siberian Transport University, December 2021. http://dx.doi.org/10.12731/ofernio.2021.24935.2.

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Kosenko, S. A., I. A. Kotova, I. V. Nikitin, and I. K. Sokolovskiy. Railway track. Calculations and design. OFERNIO, December 2021. http://dx.doi.org/10.12731/ofernio.2021.24935.

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Mokhov, Nikolai V., and Bruce C. Brown. MARS15 Calculations for MI8 Collimator Design. Office of Scientific and Technical Information (OSTI), December 2013. http://dx.doi.org/10.2172/1128757.

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Rucinski, Russ. Heat Exchanger Support Bracket Design Calculations. Office of Scientific and Technical Information (OSTI), January 1995. http://dx.doi.org/10.2172/1033314.

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Fornek, T., H. Spinka, and D. Underwood. Calculations on the STAR conventional magnet design. Office of Scientific and Technical Information (OSTI), June 1993. http://dx.doi.org/10.2172/7368481.

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Fornek, T., H. Spinka, and D. Underwood. Calculations on the STAR conventional magnet design. Office of Scientific and Technical Information (OSTI), June 1993. http://dx.doi.org/10.2172/10173107.

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Koglin, Johnathon D. Strength-Stabilized Rayleigh-Taylor Growth Experiment Design Calculations. Office of Scientific and Technical Information (OSTI), April 2018. http://dx.doi.org/10.2172/1459140.

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Han, Fei, Monica Prezzi, Rodrigo Salgado, Mehdi Marashi, Timothy Wells, and Mir Zaheer. Verification of Bridge Foundation Design Assumptions and Calculations. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317084.

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The Sagamore Parkway Bridge consists of twin parallel bridges over the Wabash River in Lafayette, IN. The old steel-truss eastbound bridge was demolished in November 2016 and replaced by a new seven-span concrete bridge. The new bridge consists of two end-bents (bent 1 and bent 8) and six interior piers (pier 2 to pier 7) that are founded on closed-ended and open-ended driven pipe piles, respectively. During bridge construction, one of the bridge piers (pier 7) and its foundation elements were selected for instrumentation for monitoring the long-term response of the bridge to dead and live loads. The main goals of the project were (1) to compare the design bridge loads (dead and live loads) with the actual measured loads and (2) to study the transfer of the superstructure loads to the foundation and the load distribution among the piles in the group. This report presents in detail the site investigation data, the instrumentation schemes used for load and settlement measurements, and the response of the bridge pier and its foundation to dead and live loads at different stages during and after bridge construction. The measurement results include the load-settlement curves of the bridge pier and the piles supporting it, the load transferred from the bridge pier to its foundation, the bearing capacity of the pile cap, the load eccentricity, and the distribution of loads within the pier’s cross section and among the individual piles in the group. The measured dead and live loads are compared with those estimated in bridge design.
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