A Simplified Calculation Method of Length Adjustment of Datum Strand for the Main Cable with Small Sag by Jun He, Chuanxi Li, Hongjun Ke, Yang Liu, Yuping Zhang, Chuangwen Dong, Hongli Li, Zhe Zhang

“…Then, the applicability of the proposed cable length adjustment formula under different conditions of the sag-span ratio is analyzed and compared with other calculation methods based on the theory of catenary or parabola. …”
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Iol optic power calculation in patients with eye axial length 24‑28 mm without preceding refractive surgery by K. B. Pershin, N. F. Pashinova, A. Iu. Tsygankov, S. L. Legkih

“…Analysis of effectiveness of IOL calculating formulas and frequency of intra- and postoperative complications of phacoemulsification in patients with eye axial length 24.0‑28.0 mm.Patients and methods. …”
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Efficient algorithm for calculating short cycles in Tanner graph based on matrix computation by Qing ZHU, Le-nan WU, Yong-biao YANG, Jie LI, Shi-ming XU

“…Loop distribution of Tanner graph affects the BER performance of low-density parity-check codes(LDPC) decoding.To count short cycles in the Tanner graph efficiently,a side by side recursion algorithm based on matrix computation was proposed.Firstly,5 basic graph structures were defined to realize recursive calculate in the implementation process.Compared with previous works,the algorithm provided many methods for counting the same length of cycles.The same result confirmed the correctness of the algorithm.The new algorithm could not only calculate the total number of cycles,but also gave the number each edge participating in fixed-length cycles.Its complexity was proportional to the product of D and square of N,where D was the average degree of variable nodes,and N denoted the code length.For LDPC codes,D was far less than N.For most of the LDPC codes,the calculation for numbers of cycle-length g、g+2、g+4 was only several seconds.…”
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Efficient algorithm for calculating short cycles in Tanner graph based on matrix computation by Qing ZHU, Le-nan WU, Yong-biao YANG, Jie LI, Shi-ming XU

“…Loop distribution of Tanner graph affects the BER performance of low-density parity-check codes(LDPC) decoding.To count short cycles in the Tanner graph efficiently,a side by side recursion algorithm based on matrix computation was proposed.Firstly,5 basic graph structures were defined to realize recursive calculate in the implementation process.Compared with previous works,the algorithm provided many methods for counting the same length of cycles.The same result confirmed the correctness of the algorithm.The new algorithm could not only calculate the total number of cycles,but also gave the number each edge participating in fixed-length cycles.Its complexity was proportional to the product of D and square of N,where D was the average degree of variable nodes,and N denoted the code length.For LDPC codes,D was far less than N.For most of the LDPC codes,the calculation for numbers of cycle-length g、g+2、g+4 was only several seconds.…”
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Length of Polarization-Correlation Based on Speckle Pattern for Optical Coherent Detection by Longkun Zhang, Jianfeng Sun, Qian Xu, Weibiao Chen

“…A length of polarization-correlation (LPC) based on speckle pattern of the non-uniform spatial polarization distribution is proposed and measured by using the classical measurement method of the Stokes polarization parameters for optical coherent detection. …”
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Methods of Increasing Efficiency of Antennas Embedded in Dissipative Media by R. Yu. Borodulin

“…The results are confirmed with numerical calculations. The article presents the methods of increasing efficiency of antennas embedded in soil with different electrical parameters. …”
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ANALYTICAL MODEL OF NOISE STABILITY CALCULATION OF SYSTEMS WITH MULTIPOSITIONAL MODULATION AND CODING BY REED-SOLOMON ALGORITHM by E. B. Lipkovich, V. A. Kovshik, A. A. Serchenya

“…In contrast to the well-known approaches to determining the noise immunity of systems that require computation model, new estimating models are presented that do not require knowledge of the spectrum coefficients, computer simulation training methods and graphical construction of interference curves for various types of modulation and coding parameters. The calculated ratios presented in the article include only the main parameters of the code (free distance, codeword length, relative code speed) and of the modulation type (modulation order, squared noise immunity). …”
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Effectiveness of arrangement of the long cargo transportation on the fi tting platforms with different length of freight storage by S. V. Mozgrin, G. E. Pisarevskiy

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INFLUENCE VALUATION OF ASYNCHRONOUS MOTOR CONSTRUCTIVE MODIFICATIONS WITHOUT TOOTH AREA CORRECTION ON ITS ENERGY EFFICIENCY by Irina Romanenko, Maksim Danilov

“…For this engine, a series of verification calculations for the changed length of the magnetic circuit and the number of stator winding was performed. …”
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Direct analytical efficiency assessment of the NaI(Tl) gamma-ray detector (Romashka) by Thabet Abouzeid A., Badawi Mohamed S., Hamzawy Ayman, Ruskov Ivan N., Badawi Mohamed I., Sirakov Ivan A., Kopatch Yuri N., Grozdanov Dimitar N., Salem Bohaysa A.

“…The present study focuses on the analytical and numerical calculations of the solid angle, effective solid angle, efficiency, and gamma-ray average path length within the detector materials as a function of the source position. …”
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Synthesis of non-ionic surfactants based on alkylene diamine and evaluation of their corrosion inhibition efficiency on carbon steel in formation water by A.M. Al-Sabagh, N.M. Nasser, E.A. Khamis, Tahany Mahmoud

“…These derivatives were characterized by FT-IR, and the surface tension and thermodynamic parameters were calculated. The polarization showed that the inhibition efficiency of the prepared compounds was increased with increasing the length of the internal alkyl chain between the two terminal amino groups of diamine. …”
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Calculation Methodology and Results of Optimization of Design Parameters of the Tractor Recuperative Mounted System When Aggregated with Forest Tillage Implements by Valeryi I. Posmetyev, Maksim A. Savinkov, Viktor V. Posmetyev, Andrey Yu. Manukovskii, Vadim O. Nikonov

“…The aim of the study has been to obtain analytical expressions for changes in the studied design parameters of the tractor recuperative mounted system, ensuring optimal values of its efficiency. A methodology for calculating the efficiency indicators and two-factor optimization of the design parameters of the tractor recuperative mounted system is presented. …”
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Nutrient dynamics in restored and unrestored urban streams in the Piedmont ecoregion of South Carolina by Emily N. Jordan, Debabrata Sahoo, Calvin B. Sawyer, Jeremy W. Pike, Dara M. Park, Sarah A. White, Brian E. Haggard

“…However, during winter injections, the URE segment had both the shortest and longest uptake lengths. In summer, RES exhibited noticeably shorter ammonium uptake lengths, while ammonium uptake lengths could not be calculated in URE. …”
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Novel cationic surfactants from fatty acids and their corrosion inhibition efficiency for carbon steel pipelines in 1 M HCl by A.M. Al-Sabagh, N.Gh. Kandil, O. Ramadan, N.M. Amer, R. Mansour, E.A. Khamis

“…The inhibition efficiencies obtained from the two employed methods are nearly closed. …”
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THE COMPARATIVE ECONOMIC-MATHEMATICAL ANALYSIS OF EFFICIENCY OF APPLICATION ON THE ACW OF THE ULTRALIGHT X-32 "BEKAS" PLANE AND THE MOTOR HANG-GLIDER MD-50S by I. V. Nikitin, I. V. Khainatsky

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CALCULATION OF THREE-LAYER LARGE DIAMETER PIPES ON THE PC «LIRA» by A. I. Bulgakov, R. I. Vishtalov, H. M. Muselemov, O. M. Ustarkhanov

“…On the other hand, one of the main indicators of efficiency of trunk pipelines is their material consumption. …”
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CALCULATION OF THE DRAINLESS OPERATION MODES OF TYPE «C» VESSEL CRYOGENIC TANKS by A. Yu. Baranov, L. V. Ivanov, A. M. Andreev

“…The diameter of the  hemispherical covers is 9 m, the length of the cylindrical part of the tank is 20 m. …”
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Method for Calculating Parameters of Mechanical Properties of Rocks for Simulation of Hydraulic Fracturing by A-G. G. Kerimov, E. G. Kerimova, S. B. Beketov, T. A. Gunkina, V. G. Kopchenkov

“…The system works by exciting an ultrasonic acoustic wave at the end of a cylindrical core sample, followed by recording the arrival times of waves at the end of the core end. Knowing the length of the core sample, the velocities of the longitudinal and transverse waves are calculated. …”
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Feedrate Fluctuation Minimization for NURBS Tool Path Interpolation Based on Arc Length Compensation and Iteration by Xing Liu, Pengxin Yu, Haiduo Chen, Bihui Peng, Zhao Wang, Fusheng Liang

“…The model for the arc length and curvature, with respect to the parameter of the NURBS tool path, is established to reduce the calculation amount required by interpolation points determination. …”
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Using the Hospital Frailty Risk Score to predict length of stay across all adult ages. by Huda Kutrani, Jim Briggs, David Prytherch, Claire Spice

“…<h4>Background</h4>Hospital Frailty Risk Score (HFRS) has recently been used to predict adverse health outcomes including length of stay (LOS) in hospital. LOS is an important indicator for patient quality of care, the measurement of hospital performance, efficiency and costs. …”
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