Relevant bibliographies by topics / Calculation formulas

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Calculation formulas'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 May 2022

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Journal articles on the topic "Calculation formulas"

1

Xiong, Li Li, and Jian Hua Wei. "Research on Shear Properties of Top Story T-Joints in R.C. Frame Structure with Special-Shaped Columns under Low Cyclic Reversals." Advanced Materials Research 368-373 (October 2011): 452–55. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.452.

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On the basis of five prototype top storey T-joints in R.C. frame structure with special-shaped columns, this paper examines shearing characteristic and mechanism. Based on the theory of softened strut-tie, the formulas for shearing strength of top story exterior joints in R.C. frame structure with special-shaped columns are derived. Three calculations are given in this paper, which are theoretical calculation, technical specification calculation and experimental value. The theoretical calculating value is compared with the testing results and the analysis shows that the technical specification formula can ensure high safety.
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Han, Jin Sheng, Xue Wen Wang, Li Yi Wang, and Min Ji. "Comparison and Analysis of the Calculation Formulas for the Bearing Capacity of Concrete Filled Steel Tubular Columns." Advanced Materials Research 1065-1069 (December 2014): 1337–40. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.1337.

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At present, many analysis methods and calculation formulas of the bearing capacity of concrete filled steel tubular columns have been researched. But these numerous calculation formulas of the bearing capacity have varied forms, and the application scope and the calculation precision of them are also quite different, which makes it difficult and confused for engineering designer to choose a suitable formula. Primary calculation formulas of the bearing capacity of concrete filled steel tubular columns are summarized. The calculation results of these formulas are compared with some test results of the concrete filled steel tubular columns with a large diameter. The applicability and the accuracy of these formulas are analyzed. Based on these comparisons and analyses, reasonable suggestion is given to select the suitable formula. Finally, one formula is provided to calculate the ultimate bearing capacity of concrete filled steel tubular columns reinforced with steel bars.
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Stauskis, Vytautas J. "THE EFFECT OF LOCATION OF SOUND-ABSORBING MATERIALS IN CALCULATING THE REVERBERATION TIME OF THE HALL BY DIFFERENT FORMULAS." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 9, no. 2 (June 30, 2003): 83–87. http://dx.doi.org/10.3846/13923730.2003.10531308.

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Earlier formulas used for calculating the echoing length in a hall did not make allowance for the location of sound-absorbing materials and the shape of the hall. Fitzroy in 1959 and Neubauer in 1999 tried to take these factors into account. The echoing length calculations were made in a 1018 m3 hall where sound-absorbing materials were placed on the floor and the lateral walls. Formulas produced by 6 authors were used for calculations. As the echoing length is calculated by Fitzroy's and Neubauer's formulas, with the sound-absorbing materials of different acoustical properties placed on various planes of the hall, large differences in values are obtained compared with the calculations based on Eyring's formula. When a half of the floor area is covered with a sound-absorbing material, the increase of its absorption ratio results in the increase of the difference in echoing lengths calculated by Fitzroys' and Neubauer's formulas. When only the lateral walls are covered with sound-absorbing material, the increase of their absorption coefficient from 0,1 to 0,6 results in a 3 s (or three-fold) increase in the echoing length difference when calculated by Fitzroy's formula and in a 2 s (or two-fold) increase when calculated by Eyring's formula. Calculation by other formulas gives an insignificant difference of ∼ 0,5 s. As Fitzroy's and Neubauer's formulas are used, the difference becomes more significant: the larger the average hall absorption coefficient, the larger the difference.
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Camps, Vicente J., Ramy R. Fikry Riad, Esteban Caravaca-Arens, Fady E. Labib, Veronica Mateo, María T. Caballero, and David P. Piñero. "Comparison of Four Intraocular Power Calculation Formulas in Keratoconus Eyes." Open Ophthalmology Journal 15, no. 1 (July 7, 2021): 96–102. http://dx.doi.org/10.2174/1874364102115010096.

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Introduction: This study aimed to evaluate the differences in Intraocular Lens (IOL) power in keratoconus (KC) eyes between calculations obtained clinically with the most commonly used formulas in healthy eyes (SRK T, Holladay 1, Hoffer Q and Haigis) as well as to define predictive factors for such differences. Methods: This retrospective study comprised 43 keratoconus eyes of 22 patients with no previous ocular surgery. IOL powers were calculated with SRK T, Holladay 1, Hoffer Q, and Haigis formulas, considering the Effective Lens Position (ELP) of each formula and the desired refraction of 0 D (Rdes=0 D). Results: All differences between formulas were statistically significant and clinically relevant. Haigis formula always provided higher values compared to the rest of the formulas, with the highest differences observed when comparing Haigis with Hoffer (0.84 D) and Hoffer Q (1.17 D) formulas. The lowest difference was obtained for the comparison between SRK-T and Holladay 1 formulas (0.22 D). Differences of the Haigis formula compared to the rest were higher as the magnitude of the IOL power calculated decreased, becoming the patient more myopic. Increased differences between Haigis and Hoffer formulas were observed in eyes with deep anterior chambers, steeper anterior and posterior corneal surfaces, and high axial lengths. Conclusion: The most comparable results in IOL power in keratoconus are provided by the Holladay 1 and SRK T formulas, whereas the Haigis formula provides the most discrepant outcome. The consideration of the curvature of the second corneal surface in IOL power calculations in keratoconus may decrease the variability between calculation methods. However, other factors as anterior chamber depth or axial length are also relevant.
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Ildarkhanov, Radik. "The Calculation of the Fuel Cost for a Car." Periodica Polytechnica Transportation Engineering 47, no. 4 (March 12, 2018): 277–82. http://dx.doi.org/10.3311/pptr.10553.

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The proposed formula derived considering the physical phenomena which occur during truck operation makes it possible to calculate fuel cost during the operation more accurately. The results of comparison of calculations by the proposed formula with test results tractors parties “TransEuroTest” are presented. The results of the calculation with the help of new formula differ from the experimentally obtained values of the fuel consumption of vehicles for not more than 1%. The average fuel consumption of tractors at an average speed is shown. The proposed formula for calculating the cost makes it easy to compare the fuel consumption of different vehicle options. The formula can also be used when evaluating the effect of vehicle weight on fuel consumption, which is impossible according to the well-known formulas.
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Konarzewska, Malgorzata, and Artur Konarzewski. "CHOSEN ASPECTS OF DEFINING TECHNICAL WEAR OF BUILDINGS." Technological and Economic Development of Economy 12, no. 3 (September 30, 2006): 200–203. http://dx.doi.org/10.3846/13928619.2006.9637742.

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The article discusses the problem of defining borderline values of technical wear of a building and/or its components. Formulas and methods of defining wear have been highlighted, and an example has been presented, where the calculations were made according to proportionality formulas: Ross and Unger, Romstorfen and Eytelwein. While analysing results, some differences have been pointed out in the assessment of the degree of wear, depending on the time lapse and selection of a calculation formula. Selecting an inappropriate calculation procedure (depending on the focus on an element), and incorrect manner of defining technical life span of an element or a whole building leads to serious errors. The justifiability of the above statement has been proved in the summary, where a comparison of element use, according to different calculation formulas, has been presented in a graphic form.
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Jiang, Shuan, Li Li Bai, and Wei Chen Xue. "Calculation of Crack Width of Steel-Concrete Composite Beams Prestressed with Internal Tendon." Advanced Materials Research 850-851 (December 2013): 183–87. http://dx.doi.org/10.4028/www.scientific.net/amr.850-851.183.

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Steelconcrete composite beam prestressed with internal tendon (SCCPIT) is composed of prestressed concrete slab, steel beam and shear connectors, etc. At present, there is no calculation formula for crack width of SCCPIT in current design codes Eurocode 4, ASSHTO or Chinese Code for Design of Steel Structures (GB 500172003). In this paper, the calculating formulas for crack width provided in Code for Design of SteelConcrete Composite Structure (DL/T 50851999) were adopted as a basis for modification. On the basis of available test results, the calculation formulas for uneven coefficient of reinforcement strain and average crack space were modified by consideration of concrete slab width and combined force ratio. Hence, empirical calculating formulas of crack width of SCCPIT under negative moment were proposed. In order to verify the accuracy of the proposed formulas, five simply supported SCCPITs previously conducted by research group were analyzed, and comparisons indicated that the calculated values are in good agreement with the test results.
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Pershin, К. B., N. F. Pashinova, I. A. Likh, А. Yu Tsygankov, and S. L. Legkikh. "Intraocular Lenses Optic Power Calculation in Extremely Short Eyes." Ophthalmology in Russia 19, no. 1 (April 7, 2022): 91–97. http://dx.doi.org/10.18008/1816-5095-2022-1-91-97.

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Purpose: to choose the optimal formula for calculating the IOL optical power in patients with an axial eye length of less than 20 mm.Patients and methods. A total of 78 patients (118 eyes) were included in the prospective study. Group I included 30 patients (52 eyes) with extremely short eyes (average axial eye length of 19.60 ± 0.42 (18.54–20.00) mm), group II consisted of 48 patients (66 eyes) with a normal axial length 22.75 ± 0.46 (22.00–23.77) mm with implantation of various monofocal IOL models. The average follow-up period was 13 months. IOL optical power was calculated using the SRK / T formula, retrospective comparison — according to the formulas Hoffer-Q, Holladay II, Olsen, Haigis and Barrett Universal II.Results. In group I, the maximum average estimation error was determined for the formula Haigis (0.88 ± 0.35), then for the formula Olsen, Barrett Universal II, Kane, SRK / T, Holladay 2 and Hoffer-Q (0.51 ± 0.12, 0.16 ± 0.38, 0.13 ± 0.28, 0.10 ± 0.59, 0.05 ± 0.54 and –0.12 ± 0.42, respectively). Similar data were obtained for the average absolute error — for the formulas Haigis, Olsen, Barrett Universal II, SRK / T, Holladay 2, Hoffer-Q and Kane, it was 0.85 ± 0.31, 0.78 ± 0.25, 0.21 ± 0.10, 0.79 ± 0.23, 0.73 ± 0.24, 0.19 ± 0.08 and 0.17 ± 0.06, respectively. When comparing the formulas, significant differences were found for the formulas Hoffer-Q, Barrett Universal II and Kane in comparison with the formulas Haigis, Olsen, SRK / T and Holladay II (p < 0.05) in all cases, respectively, which indicates the advantage of these formulas for the group patients with extremely short eyes. In group II, there were no significant differences between the studied formulas (p > 0.05).Conclusion. This paper presents an analysis of our own data on the effectiveness of six formulas for calculating the IOL optical power in extremely short (less than 20 mm) eyes in comparison with the normal axial length. The advantage of the Hoffer-Q, Barrett Universal II and Kane formulas over Haigis, Holladay 2, Olsen, and SRK / T is shown. To determine the exact indications for using these formulas, further studies are necessary taking into account the anterior chamber depth and a lesser degree of hyperopia.
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Saltanaeva, Elena Andreevna, and Andrey Vladimirovich Maister. "Optimization of calculations of the effects of spill fires during accidents on linear equipment." E3S Web of Conferences 140 (2019): 07002. http://dx.doi.org/10.1051/e3sconf/201914007002.

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The issue of industrial (in particular, fire) safety at hazardous production facilities is considered. The previously obtained optimization method is given for calculating the assessment of the influence of hazardous factors in the event of possible accidents on extended (linear) equipment during explosions of fuel-air mixtures. Optimization is based on accelerating the calculations of the potential damage probability of Qn(M0) using transformed formulas containing a single instead of a double integral. The transformed formulas for calculating the double integral obtained in were used to optimize the calculations for the case of a spill fire based on the recommended probit function Pr used to estimate the damage to people by thermal radiation. As an example of calculations, a rectilinear fragment of a pipeline on a plane, presented as a segment of a straight line, is considered. To obtain an assessment of effectiveness, 1000 sets of source data characterizing various emergency situations were randomly generated. Based on the calculations for these data sets, statistical results are presented that characterize the effectiveness of the proposed optimization method: a graph of the values of the multiplicity of the reduction in calculation time using the converted formulas; average value and standard deviation of the multiplicity of reduction of calculation time; the maximum deviation of the values calculated by the original and converted formulas.
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Liu, Jie, Shuang Xi Zhang, and Yu Feng He. "Investigation on Double-Tube Copper-Aluminum Column-Wing Type Radiators." Advanced Materials Research 243-249 (May 2011): 4883–86. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.4883.

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The calculation formulas are provided for calculating the heat release and metal thermal intensity of double-tube copper-aluminum Column-wing type radiator, and the reliability of the theoretical calculation is verified. The metal thermal intensity is taken as an optimization index, with theoretical calculations for different sorts of tube diameters and overall dimensions, obtains the optimalizing dimension of the radiator.
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Dissertations / Theses on the topic "Calculation formulas"

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Assaye, Abb. "Torsional Stiffness Calculation of CFRP Hybrid Chassis using Finite Element Method : Development of calculation methodology of Formula Student CFRP Chassis." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-79065.

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Composite sandwich structures are being used in the automotive and aerospace industries at an increasing rate due to their high strength and stiffness per unit weight.  Many teams in the world’s largest engineering competition for students, Formula Student, have embraced these types of structures and are using them in their chassis with the intent of increasing the torsional stiffness per unit weight.   The Formula Student team at Karlstad University, Clear River Racing, has since 2017 successfully built three carbon fiber based sandwich structure chassis. A big challenge when designing this type of chassis is the lack of strategy regarding torsional stiffness simulations. Thus, the goal of this thesis project was to provide the organization with a set of accurate yet relatively simple methods of modelling and simulating the torsional stiffness of the chassis.   The first step in achieving the goal of the thesis was the implementation of simplifications to the material model. These simplifications were mainly targeted towards the aluminum honeycomb core. In order to cut computational times and reduce complexity, a continuum model with orthotropic material properties was used instead of the intricate cellular structure of the core. To validate the accuracy of this simplification, the in-plane elastic modulus of the core was simulated in the finite element software Abaqus. The stiffness obtained through simulations was 0.44 % larger than the theoretical value. The conclusion was therefore made that the orthotropic continuum model was an accurate and effective representation of the core.   Furthermore, simplifications regarding the adhesive film in the core-carbon fiber interfaces were made by using constraints in Abaqus instead of modelling the adhesive films as individual parts. To validate this simplification and the overall material model for the sandwich structure, a three-point bend test was simulated in Abaqus and conducted physically. The stiffness for the sandwich panel obtained through physical testing was 2.4 % larger than the simulated stiffness. The conclusion was made that the simplifications in the material modelling did not affect the accuracy in a significant way.   Finally, the torsional stiffness of the 2020 CFRP chassis was found to be 12409.75 Nm/degree.   In addition to evaluating previously mentioned simplifications, this thesis also serves as a comprehensive guide on how the modelling of the chassis and how the three-point bend test can take place in regards to boundary conditions, coordinate system assignments and layup definitions.
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Chalupa, Pavel. "Analýza torzní tuhosti upravené varianty rámu vozidla Formule Student." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228970.

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Pavel Chalupa Torsional Stifness Analysis of Formula Student Frame Modification DW, IAE, 2010, 66 str., 66 obr. This thesis is concerned with a calculation analysis of a frame construction for Formula Student. The Base design of this construction is modeled in computer program ProEngineer. In next step the model is transfered to calculation software Ansys. The analysis is made by finite element method in torion and bend there. The calculation of torsional stiffness is made of resultant values. Finally, the results are compared with previous frame versions.
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Koňařík, Josef. "Analýza aerodynamiky vozidla Formule Student." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228797.

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The aim of thesis is to devise the body due to the current model in the 3D software ProEngineer and given by current Formula Student competition rules. Subsequently, the model will be created for the purposes of CFD software for numerical analysis of aerodynamics. Based on this analysis, the simulation will be obtained with the coefficient of air and axles load.
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Eliosoff, Jacob. "Calculating the probability of an LTL formula over a labeled Markov chain." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=80257.

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This thesis presents a new algorithm to compute the probability that a state in a labeled Markov chain model satisfies an LTL specification. A solution to this problem was given by Courcoubetis & Yannakakis in 1995, but unlike their solution the algorithm presented here requires no transformations of the input model. This advantage may be significant because of the large models which occur in most practical verification problems. The new algorithm is proved correct and shown to be not worse than doubly exponential in the size of the formula and cubic in the size of the model. However limited experimental results suggest that these bounds are pessimistic and that with further optimization the algorithm might approach the efficiency of current model checkers, which compute only true or false rather than an exact probability. I also include a working Java implementation, MCMC, and a proof that for any plausible path P followed by a Markov chain and any LTL formula Φ, some finite prefix of P determines whether P satisfies Φ.
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Dostálová, Tereza. "Návrh optimalizace modelu výpočtu nákladů pro inovovaný produkt." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2018. http://www.nusl.cz/ntk/nusl-377370.

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Diploma thesis is focused on optimization cost model for innovative product in production plant in Brno, in business AŽD Praha s. r. o. Based on theoretical knowledge and analysis of the current costing model of the original product version and the innovated version of the product, the design part will be optimized the cost calculation model for the innovative product and it will be proposed controlling concept of cost calculation. Described proposal for optimizing the cost calculation model leads to an overall improvement of the cost management system in AŽD Praha s. r. o.
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Svoboda, Lukáš. "Optimalizace tvorby cenové nabídky." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-227074.

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The diploma thesis deals with problems of calculation of price offers. The theoretical part provides a breakdown of costs and their determination, explains the division of public contracts by the expected values and the conditions of qualification of candidates. The practical part of this thesis explains the optimized procedures of price offer of the specific building company, in preparing the direct and indirect cost on an example of the public contract. In conclusion the price is compared to the real costs.
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Nováčková, Eva. "Metody plánování a řízení režijních nákladů vybrané komponenty." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2019. http://www.nusl.cz/ntk/nusl-399842.

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Master´s thesis is focused on overhead costs and calculation of the selected product. There are hourly rates, a proposal for a new updated calculation and steps leading to this update. It deals with possible benefits and the impact of the proposed change on the company's performance. The thesis also contains theoretical knowledge of the processed areas.
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Fučíková, Petra. "Oceňování stavebních prací z kamene při restaurování nemovitých historických objektů." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-355622.

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The aim of this thesis is to analyse the current situation in valuation of restoration works during construction work, and then to define and standardize the construction work of stone during the restoration of immovable historical monuments. The dissertation moves further knowledge about the issue of restoration work valuation and brings benefits at both theoretical and practical level. In the first part thesis deals with the detailed definition of basic terms, namely restoration, cultural heritage, calculations and costs. The second part of the thesis is dedicated to international comparisons of the historical monuments care in the Czech Republic and France. The result is a comparison of selected indicators of historical monuments care in the Czech Republic and France. Further the attention in the second part is devoted to the pricing development and standardization in construction and restoration, as well as to the pricing of construction work. The third part of the thesis is dedicated to the actual research work, which is focused on the methodology of determining the price of stone construction work in the restoration of the historical buildings. Based on the results of the research there are presented conclusions and proposals of solutions to the existing issue. It is primarily about defining the scope of the building technical documentation with respect to the requirements of restoration, defining direct and indirect costs and profits of construction work of stone in the restoration of historical buildings. At the end of this section there are defined conclusions from the research, which summarize the determination of price list and its description. An integral part of this dissertation is a proposal for the further development and possible solutions of this specific issue.
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Vázlerová, Marcela. "Cena vody ve vybraných obcích České republiky." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-391935.

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The diploma thesis deals with the problems related to operation of water supply and sewerage systems in the Czech Republic. The view is focused on the calculation of the water price for the customer because of large scope of the topic. The diploma thesis also describes the technical development of water management infrastructure, ways of operation of water supply and sewerage systems and the development of water and sewer rate price. The main aim of the thesis is to describe the specific situation in the selected village and the voluntary association of municipalities. It is focused to calculating water and sewer rate price. For a good overview in the prices of water and sewer rate in the Czech Republic, the prices in the selected municipality and the voluntary association of municipalities are compared with prices in the Czech Republic, in general.
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Dudek, Miroslav. "Kalkulace nákladů ve firmě ABC, s.r.o." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2016. http://www.nusl.cz/ntk/nusl-241531.

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The intention of this thesis is to create a cost accounting system for the company ABC, s. r. o., which is mainly engaged in the reconstruction and construction of sports fields. The calculations will clearly show all costs associated with the implementation of projects and will help the company to better manage their business. A complete analysis will be performed of sales, costs and profits. A significant portion of the thesis will be proposals which can be used to improve the functioning of the company.
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Books on the topic "Calculation formulas"

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Mayle, Jan. Standard securities calculation methods: Fixed income securities formulas for price, yield, and accrued interest. 3rd ed. New York: Securities Industry Association, 1993.

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Chuvikov, Dmitriy. Models and algorithms for reconstruction and examination of emergency events of road accidents based on logical artificial intelligence. 2nd ed. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1220729.

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The purpose of the monograph is to create a methodology, combined expert and simulation models, as well as algorithms and software-modeling tools for reconstruction and examination of accident events for automating decision-making by an expert center employee. The methodology of combining and algorithms of joint work of an expert system based on logical artificial intelligence (mivar approach) and a simulation system for solving problems of reconstruction and examination of road accidents are developed; model reconstruction and examination of the accident in the formalism of the knowledge base bipartite oriented mivar nets, including analysis formulas braking qualities of the vehicle, determining the speed of a car's performance in terms of specific DTS, the formula for calculating different occasions: - slip car when braking, driving on curved sections of the road, hitting a car on the pedestrian in uniform motion and unlimited visibility; a method of generation of interfaces for designer expert systems based on the concept of mivar approach; special software in the form of expert systems "Analysis of road accident" in order to reduce the complexity of the process of calculating the disputed accidents, errors in the calculation and improve the accuracy and objectivity of the results obtained and the speed and quality of the calculations. It can be useful to specialists of expert institutions, insurance companies, educational institutions in the field of expertise, as well as unmanned vehicles in terms of objective analysis and examination of road accidents.
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American Bar Association. Section of Litigation, ed. Formulas for calculating damages. Chicago, Ill: American Bar Association, 2012.

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Goc, Aleksandr. Dynamics of engines. Course design. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1055672.

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Brief data from theory in the discipline "Theory of engines" and the order of execution of the course project. In a compact form the basic formulas and clarifications for the implementation of the relevant parts of the course project. As an example, the calculation-explanatory note and drawings done by a student course project review. Meets the requirements of Federal state educational standards of higher education of the last generation. Intended for students of day and correspondence forms of training areas of training 13.03.03 power mechanical engineering and 23.03.03 "Exploitation of transport and technological machines and complexes".
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Grover, Frederick Warren. Inductance calculations: Working formulas and tables. Mineola, N.Y: Dover Publications, 2004.

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Samuel, G. Robello. Formulas and calculations for drilling operations. Salem, MA: Scrivener, 2010.

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Grover, Frederick W. Inductance calculations: Working formulas and tables. Mineola, N.Y: Dover Publications, 2009.

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Samuel, G. Robello. Formulas and Calculations for Drilling Operations. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2010. http://dx.doi.org/10.1002/9781118010235.

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Speight, James G. Formulas and Calculations for Drilling Operations. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119083689.

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Berman, A. Vacuum engineering calculations, formulas, and solved exercises. San Diego: Academic Press, 1992.

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Book chapters on the topic "Calculation formulas"

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Debellemanière, Guillaume, Alain Saad, and Damien Gatinel. "Practical Considerations for AI Implementation in IOL Calculation Formulas." In Artificial Intelligence in Ophthalmology, 263–78. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-78601-4_24.

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Kitcher, Christopher. "Formulae." In Electrical Installation Calculations, 147–51. 10th ed. London: Routledge, 2022. http://dx.doi.org/10.1201/9781003258735-22.

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Kitcher, Christopher. "Formulae." In Electrical Installation Calculations, 189–93. 9th ed. London: Routledge, 2022. http://dx.doi.org/10.1201/9781003258728-18.

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Kitcher, Christopher. "Simple Transposition of Formulae." In Electrical Installation Calculations, 3–4. 10th ed. London: Routledge, 2022. http://dx.doi.org/10.1201/9781003258735-2.

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Kitcher, Christopher. "Simple Transposition of Formulae." In Electrical Installation Calculations, 3–4. 9th ed. London: Routledge, 2022. http://dx.doi.org/10.1201/9781003258728-2.

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Bogdan, Lucyna, Grażyna Petriczek, and Jan Studziński. "An Approach for Planning and Analysis of the Sewage Sanitary Networks Using Some Calculation Formulas and Computer Simulation." In Proceedings of the Ninth International Conference on Dependability and Complex Systems DepCoS-RELCOMEX. June 30 – July 4, 2014, Brunów, Poland, 103–13. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07013-1_10.

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Norsker, Henrik, and James Danisch. "Glaze Formula Calculations." In Glazes — for the Self-Reliant Potter, 135–48. Wiesbaden: Vieweg+Teubner Verlag, 1993. http://dx.doi.org/10.1007/978-3-663-06865-5_16.

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Zamanova, Saule. "Calculation 15-Fold Integrals by Method of Optimal Coefficients for Small Values of the Numbers of Knots Quadrature Formulas." In Lecture Notes in Electrical Engineering, 453–60. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6516-0_49.

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Hart-Davis, Guy. "Performing Custom Calculations with Formulas." In Learn Excel 2011 for Mac, 163–83. Berkeley, CA: Apress, 2011. http://dx.doi.org/10.1007/978-1-4302-3522-4_5.

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Hart-Davis, Guy. "Performing Custom Calculations with Formulas." In Learn Excel 2016 for OS X, 145–65. Berkeley, CA: Apress, 2015. http://dx.doi.org/10.1007/978-1-4842-1019-2_5.

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Conference papers on the topic "Calculation formulas"

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Maksimov, Anton V., and Gennady S. Zinoviev. "Calculation of the converter elements by electronic simulator of formulas." In 2008 9th International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering (APEIE). IEEE, 2008. http://dx.doi.org/10.1109/apeie.2008.4897079.

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Shlamberg, A., H. Matzner, and E. Levine. "Some analytical formulas for the directivity calculation of antenna arrays." In 2018 IEEE International Symposium on Electromagnetic Compatibility and 2018 IEEE Asia-Pacific Symposium on Electromagnetic Compatibility (EMC/APEMC). IEEE, 2018. http://dx.doi.org/10.1109/isemc.2018.8394039.

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Zhang, Chong, Junhong Wang, Fan Li, and Hua Zhang. "Empirical formulas for propagation constant calculation of leaky circular waveguide." In 2017 7th IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies (MAPE). IEEE, 2017. http://dx.doi.org/10.1109/mape.2017.8250862.

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Zhang Xin-cai, Wang Lian-guang, and Ruan Hang. "Deformation calculation formulas of prestressed steel-Concrete-Steel sandwich panel." In 2010 International Conference on Mechanic Automation and Control Engineering (MACE). IEEE, 2010. http://dx.doi.org/10.1109/mace.2010.5535521.

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Faqiang, Yin, Pan Jin, Huang Shiwen, and Xu Mingcai. "Simplified Analytical Calculation and Modification of the Crushing Forces of Intersection Units in Vessel-Bridge Collisions." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-18615.

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Abstract Because of the increasingly busy maritime trade, the number of bridges damaged by ship-bridge collision also increases. In order to reduce the serious losses caused by ship-bridge collision incidents, it is necessary to make a rapid estimation of ship collision forces. The simplified analytical formulas can be used to rapidly evaluate the collision force in ship collision accidents, but it is found that the existing simplified formulas are only applicable to bulb structures including small-angle inclined elements and not suitable for large-angle inclined elements which exist in ship-bridge collision. In this paper, the quasi-static crushing simulation of the bulbous structure with small-angle inclined angle elements is carried out, and the applicability of the simplified analytical formula of the intersection unit to the typical structure is verified. By comparing the simplified analytical results of the bow with the quasi-static simulation results and the ratio of the strength reduction factor to the effective crushing distance, it is found that the inclined angle of the inclined element will affect the impact force of the simplified analytical calculation. Then, finite element analysis of the truncated-type intersection structure with different element inclination angles are carried out, and the results show that the existing simplified analytical formula is no longer suitable for the calculation of collision force when the inclined angle is greater than 40°. For this reason, the existing simplified analytical formulas are modified for the large-angle inclined elements, and it can provide a certain reference calculation value for the collision force of vessel-bridge collision which includes large-angle inclined elements.
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Wettstein, Hans E. "Polytropic Change of State Calculations." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-36202.

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Polytropic change of state calculations are used within many thermodynamic cycle analysis tasks for turbomachinery like gas turbines or compressors. The typical approach is using formulas, which are theoretically valid for ideal gas conditions only. But often gases are used, which do certainly not behave like ideal gases. This is motivation to check how and which polytropic change of state algorithms can be used for real gases or corresponding mixtures. There is a vast experience on polytropic efficiencies achievable with existing turbomachinery. Manufacturers calibrate their performance analysis with real test results for compensating potential deviations from their analysis approach. But they normally do not disclose their approaches for the thermodynamic calculation and the corrections made based on their test results. But for investigations of new thermodynamic cycles before the stage of development with an available demonstrator a best possible prediction of the performance is desired. In this paper the assumptions and formulas for calculating polytropic changes of state and polytropic efficiencies are gathered from literature. The most fundamental assumption is based on a constant dissipation rate during the polytropic change of state. It could be tracked back to Zeuner, Stodola and Dzung. A numerically convenient approximation is the “polytropic exponent approach”. It fulfills the first assumption for an ideal gas but it is only an approximation for real gases. The temperature after a polytropic change of state is defined by its initial condition, the pressure ratio and the polytropic efficiency. Three different calculation algorithms are compared here: The recursive “constant dissipation rate algorithm” suggested by the author, the most used “ideal gas formula” and the “polytropic exponent formula” as the most used approximation for real gases. Numeric results for compression from 1bar to up to 100bar are shown for dry air, Argon, Neon, Nitrogen, Oxygen and CO2. The deviations of the different calculation approaches are considerable.
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Lou, Jingjun, Shijian Zhu, Weijian Qian, and Lin He. "Single-Bagged Air Spring’s Parameter Calculation." In ASME 2001 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/detc2001/vib-21640.

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Abstract This paper sets up a dynamic model of a single-bagged air spring with an auxiliary air chamber on the basis of the polytrope process state equation. The calculation formulas for stiffness and natural frequency are derived. Factors affecting damping coefficient and natural frequency are analyzed.
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Yoshikawa, Takao, and Kenshi Yoshimura. "A Study of General Buckling Strength of Ring-Stiffened Cylindrical Shells Under External Pressure and Effective Breadth of Ring-Stiffeners." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57679.

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Recently, we usually use the numerical method to calculate the buckling strength of plate and shell structures. But at early design stage, we even now use the theoretical or some simplified formula to check the buckling strength. For most of typical plate and shell structures, the precise formulas of buckling strength have been developed. For the general buckling strength of ring-stiffened cylindrical shell under external pressure in elastic range, the several formulas have been also proposed, but the accuracy of those are hardly adequate. In those formulas, the effective breadth of ring-stiffeners is introduced, but the exact value has not been presented. In this paper, the calculation procedure of effective breadth is developed based on mechanical consideration of pre-buckling deformation, and the modified simplified formula of general buckling strength of ring-stiffened cylindrical shells under external pressure in elastic range is proposed. Finely, the accuracy of proposed formula is confirmed by comparison with numerical results.
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Zou, Shuaidong, Guangjian Wang, and Li Yu. "Research on Calculation of Unloaded Transmission Error of Planetary Gear Train Caused by Eccentricity." In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-67463.

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In this paper, calculation of no-load transmission error (TE) of planetary gear train is studied. The theory computational model of the eccentric planetary gear train with single planet gear (SPG) under no-load conditions is constructed initially for acquiring the formulas of no-load transmission ratio error and unloaded transmission error (UTE) of internal and external gear pairs. Then computational formula of the UTE of planetary gear train with SPG caused by eccentricity is presented. Through simulation TE and the developed formula of UTE, the eccentricities and initial phasing are uncoupled by curve fitting. Simultaneously, formula of UTE of planet gear train with SPG is validated. At the same time, different groups of initial phasing are analyzed to acquire the relatively good initial phasing group. In addition, the UTE of planetary gear train with multiple planet gears (MPG) caused by eccentricity is developed.
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Reese, Sven H., Johannes Seichter, Dietmar Klucke, H. Ertugrul Karabaki, and Wolfgang Mayinger. "Implementation of the EPRI Guidelines to Fatigue Analyses of Primary Circuit Components: Challenges and Recommendations in the Framework of Practical Application." In ASME 2014 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/pvp2014-28190.

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The influence of LWR coolant environment to the lifetime of materials has been discussed recent years. Nowadays the environmentally assisted fatigue (EAF) is under consideration in Codes and Standards like ASME by formula calculation and in the German KTA Rules (e.g. KTA No. 3201.2 and 3201.4) in addition by means of so called attention thresholds. Basic calculation procedures in terms of quantifying the influence of LWR coolant environment by the so called Fen-factor were proposed in NUREG CR-6909 in 2007. Since this report the set of formulas have been adapted several times (e.g. in ANL-LWRS47-2011) and further changes in set of formulas are likely to occur. Subsequently a revision of the NUREG CR-6909 report is taking place incorporating recent changes. Within the EPRI 2012 Technical Report “Guidelines for Addressing Environmental Effects in Fatigue Usage Calculations” some practical recommendations for the application of the EAF to real components are stated. In this report EPRI presented the calculation of sample problems in combination with sample transients carried out by the participants and verifying the applicability of the proposed approaches. However, the EPRI guideline provides a set of tools taking environmentally assisted fatigue into account. This guidance figures out to be quite helpful on one hand, but incorporates some challenges in terms of practical application on the other hand. Additionally, the EPRI Report gives no clear advice which specific combination of calculation methods to apply finally. Within this publication the procedures proposed in the EPRI guideline will be applied to existing numerical approaches being published. Challenges when applying the methods defined in the EPRI guideline will be identified and solutions will be given. Additionally, recommendations will be stated based on the proposed procedures in terms of practical application especially in context of calculations for fatigue relevant primary circuit components.
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Reports on the topic "Calculation formulas"

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Zhong, Yueyang, Yibo Yu, Jinyu Li, Bing Lu, Su Li, and Yanan Zhu. Accuracy of intraocular lens power calculation formulas in pediatric cataract patients: a systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, September 2021. http://dx.doi.org/10.37766/inplasy2021.9.0077.

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Zilberman, Mark. Shouldn’t Doppler 'De-boosting' be accounted for in calculations of intrinsic luminosity of Standard Candles? Intellectual Archive, September 2021. http://dx.doi.org/10.32370/iaj.2569.

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"Doppler boosting / de-boosting" is a well-known relativistic effect that alters the apparent luminosity of approaching/receding radiation sources. "Doppler boosting" alters the apparent luminosity of approaching light sources to appear brighter, while "Doppler de-boosting" alters the apparent luminosity of receding light sources to appear fainter. While "Doppler boosting / de-boosting" has been successfully accounted for and observed in relativistic jets of AGN, double white dwarfs, in search of exoplanets and stars in binary systems it was ignored in the establishment of Standard Candles for cosmological distances. A Standard Candle adjustment appears necessary for "Doppler de-boosting" for high Z, otherwise we would incorrectly assume that Standard Candles appear dimmer, not because of "Doppler de-boosting" but because of the excessive distance, which would affect the entire Standard Candles ladder at cosmological distances. The ratio between apparent (L) and intrinsic (Lo) luminosities as a function of redshift Z and spectral index α is given by the formula ℳ(Z) = L/Lo=(Z+1)^(α-3) and for Type Ia supernova as ℳ(Z) = L/Lo=(Z+1)^(-2). These formulas are obtained within the framework of Special Relativity and may require adjustments within the General Relativity framework.
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Zilberman, Mark. The "Dimming Effect" Produced by the Application of Doppler Effect on the Quantity of Photons Arriving to a Receiver and its Implication to Astronomy (ver. 2). Intellectual Archive, November 2020. http://dx.doi.org/10.32370/iaj.2444.

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This article describes the "Dimming effect" that is produced by the Doppler effect applied to a quantity of individual photons arriving to a receiver from a moving source of light. The corpuscular-wave dualism of light suggests that the well-known Doppler effect, which is currently applied only to the wave component of light, should also be considered for the corpuscular component of light. Application of the Doppler effect on a quantity of photons leads to the "Dimming Effect" - as the faster light source is moving away from observer - the dimmer its brightness appears. While the described dimming effect is negligible for low-speed light sources, it becomes significant for light sources with a velocity comparable to light speed in a vacuum. The relativistic adjustments for time dilation cause the described dimming effect to be even stronger. For example, the "Dimming Effect" for an object moving away from the observer with the speed 0.1c is 0.904 and for an object moving away from the observer with the speed 0.5c is 0.577. Article also provides the formula for the calculation of "Dimming effect" values using the red-shift parameter Z widely used in astronomy as N/N0=1/(Z+1). If confirmed, the "Dimming effect" must be taken into account in calculations of astronomical "Standard Candles" and in particular in the "Supernova Cosmology Project", which has claimed the acceleration of the Universe's expansion and led to the introduction of dark energy.
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Weinlandt, Thomas, Dan Kaplan, and Venkataraman Swaminathan. A Method to Formulate the Unit Cell for Density Functional Theory (DFT) Calculations of the Electronic Band Structure of Heterostructures of Two-dimensional Nanosheets. Fort Belvoir, VA: Defense Technical Information Center, April 2015. http://dx.doi.org/10.21236/ada623945.

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Zilberman, Mark. Methods to Test the “Dimming Effect” Produced by a Decrease in the Number of Photons Received from Receding Light Sources. Intellectual Archive, November 2020. http://dx.doi.org/10.32370/iaj.2437.

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The hypothetical “Dimming Effect” describes the change of the number of photons arriving from a moving light source per unit of time. In non-relativistic systems, the “Dimming effect” may occur due to the growing distance of light sources moving away from the receiver. This means that due to the growing distance, the photons continuously require more time to reach the receiver, which reduces the number of received photons per time unit compared to the number of emitted photons. Understandably, the proposed “Dimming effect” must be tested (confirmed or rejected) through observations. a. This article provides the formula for the calculation of “Dimming effect” values using the redshift parameter Z widely used in astronomy. b. The “Dimming effect” can possibly be detected utilizing the orbital movement of the Earth around the Sun. In accordance to the “Dimming effect”, observers on Earth will view 1.0001 more photons per time unit emitted by stars located near the ecliptic plane in the direction of the Earth orbiting the Sun. And, in contrast, observers will view only 0.9999 photons per time unit emitted by stars located near the ecliptic plane in the direction opposite to the Earth orbiting the Sun. Calculating precise measurements of the same stars within a 6-month period can possibly detect this difference. These changes in brightness are not only for specific stars, as the change in brightness takes place for all stars near the ecliptic in the direction of the Earth’s orbit around the Sun and in the opposite direction. c. The “Dimming effect” can possibly be detected in a physics laboratory using a moving light source (or mirror) and photon counters located in the direction of travel and in the opposite direction. d. In theory, Dilation of time can also be used for testing the existence of the “Dimming effect.” However, in experiments on Earth this effect appears in only the 14th digit after the decimal point and testing does not appear to be feasible. e. Why is it important to test the “Dimming effect?” If confirmed, it would allow astronomers to adjust values of "Standard Candles" used in astronomy. Since “Standard Candles” are critical in various cosmological models, the “Dimming effect” can correct models and/or reveal and support new models. If it is proved that the “Dimming effect” does not exist, it will mean that the number of photons arriving per unit of time does not depend on the speed of the light source and observer, which is not so apparent.
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STRESS RESPONSE AND INITIAL STIFFNESS OF SIDE PLATE CONNECTIONS TO WCFT COLUMNS. The Hong Kong Institute of Steel Construction, September 2021. http://dx.doi.org/10.18057/ijasc.2021.17.3.9.

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To study the mechanism of load transfer in double-side-plate connections between I-beams and wall-type concrete-filled steel tubular columns, a pseudo-static experiment and finite element analysis were conducted for two full-scaled specimens. The results revealed that the primary load was transmitted along an S-shaped path in the side plate, and the primary strain occurred in an X-shaped region between the left and right steel beam flanges. The shear force in the steel beam web was transmitted first to the side plate centre and then to the joint area, where the side plate, steel tube web, and concrete all resisted the internal force. Based on principal component methods, a calculation formula was established for initial rotational stiffness that comprehensively considers the influence of the tensions, compression, and shear deformation of the cover plate, side plate, and web. Comparing this formula with an existing model showed that the proposed formula is suitable for new types of side plate joints. Moreover, it can accurately calculate the initial rotational stiffness of the joint, thus providing a reliable basis for future engineering design.
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