Relevant bibliographies by topics / Effective Internal Variable method

Contents

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

Academic literature on the topic 'Effective Internal Variable method'

Author: Grafiati
Published: 23 February 2024
Last updated: 31 July 2025

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Journal articles on the topic "Effective Internal Variable method"

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Sun, Xinchao, Lianyu Zhao, and Zhenzhong Liu. "A model reference adaptive variable impedance control method for robot." MATEC Web of Conferences 336 (2021): 03005. http://dx.doi.org/10.1051/matecconf/202133603005.

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As a simple and effective force tracking control method, impedance control is widely used in robot contact operations. The internal control parameters of traditional impedance control are constant and cannot be corrected in real time, which will lead to instability of control system or large force tracking error. Therefore, it is difficult to be applied to the occasions requiring higher force accuracy, such as robotic medical surgery, robotic space operation and so on. To solve this problem, this paper proposes a model reference adaptive variable impedance control method, which can realize for
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Zhang, Laiyong, Chunming Tu, Fan Xiao, Bei Liu, and Peiqiang Li. "Intrinsic Regularity Analysis and Optimization Control of Current Stress and RMS for Dual-Active Bridge Converter." Electronics 13, no. 23 (2024): 4802. https://doi.org/10.3390/electronics13234802.

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Currently, current stress optimization control and current effective value optimization control have become the mainstream methods for real-time optimization control of dual-active bridge converters. However, there is still a lack of systematic research on the internal optimization regularities between the two and their respective internal optimization regularities, as well as problems such as the complex derivation of the effective value optimization control variable function. To address these issues, this paper analyzes the optimization results of stress optimization, effective value optimiz
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Iureva, Larisa V., and Margarita S. Marfitsyna. "Assessing the Effectiveness of the Internal Control System of Russian Universities." Journal of Applied Economic Research 23, no. 2 (2024): 551–73. http://dx.doi.org/10.15826/vestnik.2024.23.2.022.

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The article describes an innovative approach aimed at developing tools for assessing the effectiveness of the internal control system of Russian universities. The relevance of the study lies in the need to create effective measures to assess the internal control system of Russian universities. The purpose of the article is to develop effective tools for assessing the effectiveness of the internal control system of Russian universities based on regression analysis. The hypotheses of the article consist, first, in finding a close correlation between all independent indicators that reflect the ma
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Huang, Xi, Huang Huang, and Zhishen Wu. "Development of a Variable-Frequency Hammering Method Using Acoustic Features for Damage-Type Identification." Applied Sciences 13, no. 3 (2023): 1329. http://dx.doi.org/10.3390/app13031329.

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Hammer testing, a nondestructive testing method, has been demonstrated to provide information on structural damage. One of the biggest challenges with this testing method is the simultaneous identification of surface, internal, and composite damage (consisting of both surface and internal damage) in a complex environment, such as post-disaster. A method of identification based on variable-frequency hammering is proposed to solve this problem. The importance and feasibility of using variable-frequency impact hammers and the generated acoustic data to identify multiple types of damage in concret
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Peradnya Dewi, Anak Agung Istri Agung, I. Dewa Putu Oka Suardi, and Gede Mekse Korri Arisena. "THE EFFECTIVENESS OF COMMUNICATION AS A MEDIATING VARIABLE IN IMPROVING THE PERFORMANCE OF LAYER CHICKEN FARMING." Agrisocionomics: Jurnal Sosial Ekonomi Pertanian 9, no. 1 (2024): 71–84. https://doi.org/10.14710/agrisocionomics.v9i1.23788.

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Optimizing chickens as an economic resource to provide maximum income for farmers and their families requires farmers with entrepreneurial competence. To improve the performance of chicken farming businesses, in addition to entrepreneurial competence, farm owners also need enhanced communication skills to navigate the internal and external business environment. This study aims to examine the internal and external environment, entrepreneurial competence, communication, and performance of chicken farm owners in Tabanan Regency and test the effectiveness of communication as a mediating variable b
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Babajanov, Bazar, and Fakhriddin Abdikarimov. "New Soliton Solutions of the Burgers Equation with Additional Time-dependent Variable Coefficient." WSEAS TRANSACTIONS ON FLUID MECHANICS 19 (February 14, 2024): 59–63. http://dx.doi.org/10.37394/232013.2024.19.6.

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In this article, we use the functional variational method to solve the Burgers equation with an additional time-dependent variable coefficient. The main advantage of the proposed method over other methods is that it allows to obtain more new solutions of the equation. Among the solutions obtained, new soliton solutions should be noted, which are of great importance for revealing the internal mechanism of physical phenomena. Three-dimensional graphs of solutions are constructed using the mathematical program Matlab. For a better understanding of the physical properties of some of the resulting
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Pierart, Fabian G., Matias Rubilar, and Jaime Rohten. "Experimental Validation of Damping Adjustment Method with Generator Parameter Study for Wave Energy Conversion." Energies 16, no. 14 (2023): 5298. http://dx.doi.org/10.3390/en16145298.

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Effective control strategies are essential for optimizing wave energy production. While theoretical studies have explored various control approaches, experimental validation of these methods remains limited. This study proposes a damping adjustment method as a means to enable the experimental application of resistive control in wave energy systems. The system’s damping is adjusted through a variable electrical resistance coupled to the generator. A mathematical model is developed to capture the interaction between the wave energy converter, generator, and variable resistance. Experimental vali
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Babajanov, Bazar, Fakhriddin Abdikarimov, and Sarbinaz Bazarbaeva. "Exact Solutions for the Modified Burgers Equation with Additional Time-dependent Variable Coefficient." European Journal of Pure and Applied Mathematics 17, no. 2 (2024): 945–55. http://dx.doi.org/10.29020/nybg.ejpam.v17i2.5064.

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In this article, we investigated new travelling wave solutions for the modified Burgers equation with additional time-dependent variable coefficient via the functional variable method. The performance of this method is reliable and effective and gives the exact solitary wave solutions. All solutions of this equation have been examined and three dimensional graphics of the obtained solutions have been drawn by using the Matlab program. The exact solutions have its great importance to reveal the internal mechanism of the physical phenomena. This method presents a wider applicability for handling
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Jiang, Angfeng, Deyuan Deng, Wei Dai, Xiuwen You, and Hanwen Lu. "Out-Plane Buckling of Arches with Variable Cross-Section." Buildings 13, no. 11 (2023): 2838. http://dx.doi.org/10.3390/buildings13112838.

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The variable cross-section arch is widely used in practical engineering because of its beautiful arc and excellent mechanical properties. However, there is still no systematic and comprehensive study on the out-plane buckling of variable cross-section arches. In view of this, this paper is focused on the elastic analytical research of out-plane buckling of arches with variable cross-sections under a uniformly distributed radial local load. The pre-buckling and out-plane buckling behavior of a variable cross-sectional arch under an external load is quite different from that of an arch with a un
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Jiang, Junting, Mingfeng Gu, Qian Wu, et al. "Calculation Method for Equivalent Ejection Mass of Variable Thrust in the Internal Ballistic Equation of Pyrotechnic Folding Rudder." Advances in Computer and Engineering Technology Research 1, no. 4 (2024): 179. https://doi.org/10.61935/acetr.4.1.2024.p179.

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In order to solve the calculation of actuator ejection mass in pyrotechnic folding rudder, this paper investigates the calculation method for equivalent ejection mass of variable thrust in the Internal ballistic equations of pyrotechnic folding rudder, and obtains the fitting curves of equivalent ejection mass and gunpowder thrust in the case of variable forces and calculates the gunpowder thrust curves during the unfolding process by establishing the dynamic simulation model of the pyrotechnic folding rudder. After test verification, the test results are consistent withe the simulation result
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Dissertations / Theses on the topic "Effective Internal Variable method"

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Vernier, Patricia. "Homogenization of composite materials with fractional viscoelastic constituents." Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS552.

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Cette thèse porte sur la prédiction des propriétés mécaniques effectives de matériaux hétérogènes composés de constituants viscoélastiques fractional, au moyen d'une approche incrémentale variationnelle. Nous appliquons la méthode Effective Internal Variable (EIV) développée par Lahellec and Suquet (2007), particulièrement attrayante pour le traitement de comportements viscoélastiques (Tressou et al., 2016). Contrairement aux méthodes d'homogénéisation communément utilisées qui reposent sur le principe de correspondance et pour lesquelles les fluctuations des champs ne sont pas accessibles, ce
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Craveiro, Marina Vendl. "Upheaval buckling of pipelines triggered by the internal pressure resulting from the transportation of oil and gas: theoretical discussions and geometrically nonlinear analysis using Finite Element Method." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3144/tde-06122017-082632/.

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The pipelines used to transport oil and gas from the wellheads to the distribution and refining sites can be subjected to high levels of pressure and temperature. Under such conditions, the pipelines tend to expand, but, if the expansion is inhibited, a significant compressive axial force can arise, leading to their buckling, which can occur in the horizontal or vertical plane. In this context, the objective of the present work is to analyze the upheaval buckling of pipelines, considering the internal pressure to which they are subjected during the transportation of oil and gas as its only tri
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Hall, Braydon Day. "The Dynamic Analysis of a Composite Overwrapped Gun Barrel with Constrained Viscoelastic Damping Layers Using the Modal Strain Energy Method." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/1972.

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The effects of a composite overwrapped gun barrel with viscoelastic damping layers are investigated. Interlaminar stresses and constrained layer damping effects are described. The Modal Strain Energy method is developed for measuring the extent to which the barrel is damped. The equations of motion used in the finite element analysis are derived. The transient solution process is outlined. Decisions for selected parameters are discussed. The results of the finite element analyses are presented using the program written in FORTRAN. The static solution is solved with a constant internal pressure
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Books on the topic "Effective Internal Variable method"

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Byerly, Scott. Hold That Thought!: Two Steps to Effective Counseling and Psychotherapy with the Method of Levels. New View Publications, 2008.

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Tuttle, Michael C. Search and Documentation of Underwater Archaeological Sites. Edited by Ben Ford, Donny L. Hamilton, and Alexis Catsambis. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780199336005.013.0005.

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Archaeological survey is fundamental to archaeological data collection. Underwater archaeology is developing and maturing as a discipline. The levels of technology available for investigations are variable depending on the objectives of surveys. Prior to entering the field, it is essential to do a complete desktop research, an in-office examination of available literature, and to develop a survey plan. This article describes different methods and the tools used for probing, which are used for examining subsurface features or defining the extent of a site. Remote sensing is an effective method
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Book chapters on the topic "Effective Internal Variable method"

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Sahni, S., B. C. Vemuri, F. Chen, and C. Kapoor. "Variable-Bit-Length Coding: An Effective Coding Method." In Visual Information and Information Systems. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/3-540-48762-x_82.

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Zhao, Mengyu, Shaowei Cai, and Yuhang Qian. "Distributed SMT Solving Based on Dynamic Variable-Level Partitioning." In Computer Aided Verification. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-65627-9_4.

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AbstractSatisfiability Modulo Theories on arithmetic theories have significant applications in many important domains. Previous efforts have been mainly devoted to improving the techniques and heuristics in sequential SMT solvers. With the development of computing resources, a promising direction to boost performance is parallel and even distributed SMT solving. We explore this potential in a divide-and-conquer view and propose a novel dynamic parallel framework with variable-level partitioning. To the best of our knowledge, this is the first attempt to perform variable-level partitioning for
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Zheng, Huankun, Xianrong Chang, and Yaoqin Sun. "An Effective Variable Step Method Based on Implicit Tuned Taylor Series Method." In Proceedings of the 2012 International Conference on Cybernetics and Informatics. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-3872-4_287.

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Cai, Jiabao, Haowen Zhu, and Hanyan Huang. "ALMBO: An Effective Multi-fidelity Bayesian Optimization Method for Mixed-Variable Hyperparameter Optimization." In Communications in Computer and Information Science. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-9955-1_16.

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Xing, Zhang, Lai Jun Biao, and He Qing Zhi. "A New Solution of Complex Variable-Variation Method to Finite Plate with Internal Crack." In Computational Mechanics ’88. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-61381-4_100.

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Navarro, Danielle, and David Foxcroft. "11. Comparing two means." In Learning Statistics with jamovi. Open Book Publishers, 2025. https://doi.org/10.11647/obp.0333.11.

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In this chapter, we delve into the statistical techniques used to compare the means of two groups, particularly when the outcome variable is on an interval or ratio scale, and the predictor variable is binary. Such scenarios are prevalent in real-world applications across diverse fields like psychology, medicine, and agriculture. The primary focus is on the application of various forms of the t-test, including the one-sample, independent samples (Student and Welch), and paired-samples t-tests. These methods allow researchers to test hypotheses regarding mean differences between groups while co
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Zhang, Caizhen, Zongzhi Li, and Zaixing Wang. "Getting Effect Prediction Model of CVTPD-PSL Technology Based on Artificial Neural Network." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-2409-6_38.

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Abstract In view of technology characteristic of Continuously Variable Phosphorous Getting Process Using a Porous Silicon Layer (PSL-CVTPDG), a prediction model based on Artificial Neural Network(ANN) is put forward for predicting effect of PSL-CVTPDG process. Establish, train, test and verify as long as simulation of the prediction model were finished by means of ANN function in MATLAB. Experimental results show that the prediction and actually measured values are very close to, the output follows the tracks of the expectation value very well, which reflects that the ANN is an effective metho
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Ma, Qirui, Xing Peng, and Congpeng Zhang. "Microscopic Investigation of Granular Materials in Filter Layer Based on LBM-DEM Method." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4090-1_30.

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AbstractSoil erosion is one of the most serious problems that threaten the safety of embankments and earth-rock dams. When water flows through the base soil, fine particles subjected to hydrodynamic action will be washed away, which will lead to internal erosion of the embankment project. The inverted filter structure is one of the effective methods to eliminate or reduce the risk of infiltration and erosion, with a history of nearly a century of engineering practice. This article is based on the three-dimensional LBM-DEM fluid solid coupling simulation method. By setting different particle si
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Arslantas, Mustafa Kemal, Tunc Asuroglu, Reyhan Arslantas, et al. "Using Machine Learning Methods to Predict the Lactate Trend of Sepsis Patients in the ICU." In Communications in Computer and Information Science. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-59091-7_1.

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AbstractSerum lactate levels are considered a biomarker of tissue hypoxia. In sepsis or septic shock patients, as suggested by The Surviving Sepsis Campaign, early lactate clearance-directed therapy is associated with decreased mortality; thus, serum lactate levels should be assessed. Monitoring a patient’s vital parameters and repetitive blood analysis may have deleterious effects on the patient and also bring an economic burden. Machine learning and trend analysis are gaining importance to overcome these issues. In this context, we aimed to investigate if a machine learning approach can pred
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Khiabani, Behnam Naserian. "In Vitro Based Mass-Screening Technique for Early Selection of Banana Mutants Resistant to Fusarium Wilt." In Efficient Screening Techniques to Identify Mutants with TR4 Resistance in Banana. Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64915-2_4.

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AbstractBanana and plantains are among the most valuable agricultural commodities in the world. Banana Fusarium wilt, caused by the soil-borne Fusarium oxysporum f. sp. cubense (Foc), is one of the most devastating diseases of banana globally. In the 1990s a new strain of Fusarium oxysporum called tropical race 4 (TR4) emerged in Southeast Asia that affected commercial Cavendish plantations. The development of resistant cultivars is an effective strategy for management of the disease. Field-based screening to identify Foc-resistant plants is time-consuming, expensive and is often challenged by
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Conference papers on the topic "Effective Internal Variable method"

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Miyata, Toma, Yasunori Sugita, and Naoyuki Aikawa. "Design Method of Effective Passband Flat Variable FIR Filters for Weight Measurement." In IECON 2024 - 50th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2024. https://doi.org/10.1109/iecon55916.2024.10905575.

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Ye, Zhengmao, Liguang Li, and Habib P. Mohamadian. "Multi-Variable Optimization on Variable Intake Valve Closing Timing System for Engine Overall Performance." In ASME 2005 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/ices2005-1099.

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Variable valve timing (VVT) technology has a remarkable impact on engine power output, fuel economy and emission levels. To achieve a tradeoff among its potential benefits on various aspects, a novel multi-objective optimization method is proposed to complement among engine performances over entire speed-load regions. Intake valve closing (IVC) timing has been widely accepted to be the most effective means of VVT technologies. IVC timing is therefore investigated to accomplish engine overall performance optimization. The bench tests have been conducted using an introduced variable working posi
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Cho, Hyunkyoo, and K. K. Choi. "Iterative Most Probable Point Search Method for Problems With Mixture of Random and Interval Variables." 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/detc2017-67909.

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To represent input variability accurately, input distribution model for random variables should be constructed using many observations or data. However, for certain input variables, engineers may have only their bounds which represent input uncertainty. In practical engineering applications, both random and interval variables could exist at the same time. For the applications, to consider both input variability and uncertainty, inverse reliability analysis should be carried out considering the mixed variables and their mathematical correlation in performance measure. In this paper, an iterativ
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Petrea, Renato Gabriel, Sergiu Cătălin Bîrgovan, Marin Chirazi, and Pia Simona Făgăraș. "Internal Communication and Management by Obiectives in Sports Profile Institutions." In 80th International Scientific Conference of the University of Latvia. University of Latvia Press, 2022. http://dx.doi.org/10.22364/htqe.2022.79.

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Effective communication is required not only in interpersonal/human relationships but also in a successful management. In the real world, there is no organization without good communication. Since the acceptance of “management” as a separate body of knowledge over a half century ago, no management tool has had such a pervasive impact on organizations as the management by objectives. In this article, a cross-sectional study was conducted using the survey method based on a questionnaire with 24 items (10 items for the variable internal communication; 10 items for the variable management by obiec
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Burk, Reinhard, Frederic Jacquelin, and Russell Wakeman. "Using Co-Simulation Methods to Establish Variable Valve Actuation Hardware Specifications and Control Strategies." In ASME 2001 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-ice-427.

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Abstract With the increasing recognition that variable valve actuation (VVA) in its various forms is a powerful tool for optimizing the performance of internal combustion engines, more and more production systems are being designed and implemented throughout the industry. However, as these control systems become more capable of altering lift, timing, duration, and even the number of valve events, the complexity of designing algorithms and calibrating them becomes enormous. In addition, without prior knowledge of an engine’s response to these algorithms, designing a cost-effective mechanism whi
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Fu, Chiayu, I. Charles Ume, and David L. McDowell. "Thermomechanical Stress Analyses of Plated-Through Holes in PWB Using Internal State Variable Constitutive Models." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-0891.

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Abstract In application of multiaxial fatigue theories, extrapolation of concepts developed from uniaxial fatigue research must be used with caution. Previous related research on plated-through hole (PTH) fatigue investigations has been based on so-called effective stress/strain methods, which did not account for the fact that fatigue crack nucleation and growth is observed to occur on specifically oriented planes. Moreover, previous related thermal stress/strain analyses on PTH has been based on so-called bilinear constitutive relations for modeling copper plating with a linear kinematic hard
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Jan, James, Sabrina Torcellini, Aaron Khorran, and Mark Hall. "On the Characterization and Optimization of Machining Chip Washing System Using Multi-Variable Response Surface and Gradient Descent Method Abstract." In WCX SAE World Congress Experience. SAE International, 2025. https://doi.org/10.4271/2025-01-8637.

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<div class="section abstract">The final step in manufacturing high-precision parts for internal combustion engines, such as cylinder heads and blocks, is the removal of machining chips from the finished parts. This step is crucial because the machining chips and cutting oil left on the surface after machining can cause quality issues in the downstream engine assembly and affect the cooling system’s performance during engine operation. This chip removal step is especially critical for parts with internal cavities, such as the water jackets in cylinder heads, due to the difficulty of remov
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You, Shaohua, Qinzhuo Liao, Mao Sheng, et al. "Stress Sensitivity Analysis of Carbonate Digital Cores with Different Image Resolutions." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0170.

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ABSTRACT The stress sensitivity of reservoirs plays an important role in the field of oil and gas exploration and development. As an effective stress sensitivity analysis method, digital core has the problem of excessive computational cost. We thus propose a low computational cost method for predicting core stress sensitivity. This paper first established digital cores of carbonate rocks under different effective stresses, then calculated permeability under different stresses by a new decoupling method. It simplified the three-dimensional pore-scale simulation to multiple decoupled two-dimensi
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Huynh, T. C., J. K. Kang, K. C. Noh, Jong T. Lee, and J. A. Caton. "Controlling Backfire Using Changes of the Valve Overlap Period for a Hydrogen-Fueled Engine Using an External Mixture." In ASME 2007 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/icef2007-1702.

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The development of a hydrogen-fueled engine using an external mixture (e.g., using port or manifold fuel injection) with high efficiency and high power is dependent on the control of backfire. This work has developed a method to control backfire by reducing the valve overlap period while maintaining or improving engine performance. For this goal, a single-cylinder hydrogen-fueled research engine with a mechanical continuous variable valve timing system was developed. This facility provides a wide range of valve overlap periods that can be continuously and independently varied during firing ope
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Bayliff, Scott, Bret Windom, Anthony Marchese, et al. "Controlled End Gas Auto Ignition With Exhaust Gas Recirculation on a Stoichiometric, Spark Ignited, Natural Gas Engine." In ASME 2020 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/icef2020-2979.

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Abstract The goal of this study is to address fundamental limitations to achieving diesel-like efficiencies in heavy duty on-highway natural gas (NG) engines. Engine knock and misfire are barriers to pathways leading to higher efficiency engines. This study explores enabling technologies for development of high efficiency stoichiometric, spark ignited, natural gas engines. These include design strategies for fast and stable combustion and higher dilution tolerance. Additionally, advanced control methodologies are implemented to maintain stable operation between knock and misfire limits. To imp
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Reports on the topic "Effective Internal Variable method"

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Jia, Yunhui, Christopher S. Williams, Prince Baah, and Mark D. Bowman. Long-Term Project and Network-Level NDT Implementation Plan for Indiana. Purdue University, 2023. http://dx.doi.org/10.5703/1288284317582.

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Bridge deck condition assessments in Indiana are primarily reliant on visual inspection. The condition of bridge decks, however, is highly dependent on deterioration under the surface, which includes the corrosion of steel reinforcement and concrete delamination. The implementation of reliable nondestructive testing (NDT) methods can provide information about such internal deterioration, but considering the multiple NDT methods currently available, guidance is needed to find the best approach for assessing bridge decks in the state’s bridge inventory. A research program was conducted to examin
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Liller, Otto K. Special Operations Forces and Foreign Internal Defense: An Effective Counterterrorism Method. Defense Technical Information Center, 2005. http://dx.doi.org/10.21236/ada464349.

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Kott, Phillip S. The Degrees of Freedom of a Variance Estimator in a Probability Sample. RTI Press, 2020. http://dx.doi.org/10.3768/rtipress.2020.mr.0043.2008.

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Inferences from probability-sampling theory (more commonly called “design-based sampling theory”) often rely on the asymptotic normality of nearly unbiased estimators. When constructing a two-sided confidence interval for a mean, the ad hoc practice of determining the degrees of freedom of a probability-sampling variance estimator by subtracting the number of its variance strata from the number of variance primary sampling units (PSUs) can be justified by making usually untenable assumptions about the PSUs. We will investigate the effectiveness of this conventional and an alternative method fo
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Liu and Nixon. L52305 Probabilistic Analysis of Pipeline Uplift Resistance. Pipeline Research Council International, Inc. (PRCI), 2010. http://dx.doi.org/10.55274/r0000002.

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To investigate the feasibility of probabilistic analyses of the peak uplift resistance in frozen soils by varying parameters that are known to be important for the development of the uplift resistance under the upward movement of a pipe. A buried pipeline will be subjected to a variety of forces, both internal and external, including the interaction of the pipe with the surrounding soil. The soil-pipe interaction in permafrost regions have to account for the behavior of frozen and unfrozen soil, and transitions between the two as the pipeline traverses in a discontinuous permafrost zone. The v
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Pilkevych, Ihor, Oleg Boychenko, Nadiia Lobanchykova, Tetiana Vakaliuk, and Serhiy Semerikov. Method of Assessing the Influence of Personnel Competence on Institutional Information Security. CEUR Workshop Proceedings, 2021. http://dx.doi.org/10.31812/123456789/4374.

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Modern types of internal threats and methods of counteracting these threats are analyzed. It is established that increasing the competence of the staff of the institution through training (education) is the most effective method of counteracting internal threats to information. A method for assessing the influence of personnel competence on institutional information security is proposed. This method takes into account violator models and information threat models that are designed for a specific institution. The method proposes to assess the competence of the staff of the institution by three
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Ladd, Neuner, and Olsen. PR-179-13207-R01 Variable Fuel Composition Air Fuel Ratio Control of Lean Burn Engines. Pipeline Research Council International, Inc. (PRCI), 2016. http://dx.doi.org/10.55274/r0010864.

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This research evaluates the effects of variable fuel quality on a large bore 2 stroke natural gas engine by varying ethane in the fuel gas from 5 to 25%. Four control strategies were evaluated at ~2 g/bhp-hr NOx, constant boost control, trapped gas ratio (TGR) control, trapped equivalence ratio (TER) control and a novel NOx sensor feedback control methodology. These control approaches were evaluated during variations in intake manifold temperature, relative humidity, ethane volume percentage, and engine speed. Emissions, combustion parameters, controller performance, and engine performance wer
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Gipson and Trahan. PR-369-08609-R01 Online Gas Meter Cleaning. Pipeline Research Council International, Inc. (PRCI), 2010. http://dx.doi.org/10.55274/r0010711.

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To ensure proper operation and accuracy of Natural Gas meters, it is important that the meters and associated piping be maintained in a clean condition consistent with both manufacturer production and AGA report provisions. This can best be assured through a comprehensive diagnostic and in section program complete with efficient internal cleaning as required. The objective of this project was to provide a comparison between continuous chemical injection cleaning with the system remaining online and conventional manual disassembly and cleaning techniques with the system offline. Representative
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Wang, Xiaoyu. Pediatric tuina in treating recurrent respiratory tract infection in children: a systematic review and meta‑analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2023. http://dx.doi.org/10.37766/inplasy2023.4.0075.

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Review question / Objective: Is pediatric tuina an effective treatment for recurrent respiratory tract infection in children? Condition being studied: Recurrent respiratory tract infection (RRTI) is a common disease in children, which refers to the recurrence of upper and lower respiratory tract infections within a year, exceeding the prescribed number of times. It is more common in infants under 3 years old. The disease is easy to relapse and lasts for a long time, affecting the normal growth and development of children and physical and mental health, easily causing other diseases, leading to
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Rahman, Shahedur, Rodrigo Salgado, Monica Prezzi, and Peter J. Becker. Improvement of Stiffness and Strength of Backfill Soils Through Optimization of Compaction Procedures and Specifications. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317134.

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Vibration compaction is the most effective way of compacting coarse-grained materials. The effects of vibration frequency and amplitude on the compaction density of different backfill materials commonly used by INDOT (No. 4 natural sand, No. 24 stone sand, and No. 5, No. 8, No. 43 aggregates) were studied in this research. The test materials were characterized based on the particle sizes and morphology parameters using digital image analysis technique. Small-scale laboratory compaction tests were carried out with variable frequency and amplitude of vibrations using vibratory hammer and vibrato
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Baluk, Nadia, Natalia Basij, Larysa Buk, and Olha Vovchanska. VR/AR-TECHNOLOGIES – NEW CONTENT OF THE NEW MEDIA. Ivan Franko National University of Lviv, 2021. http://dx.doi.org/10.30970/vjo.2021.49.11074.

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The article analyzes the peculiarities of the media content shaping and transformation in the convergent dimension of cross-media, taking into account the possibilities of augmented reality. With the help of the principles of objectivity, complexity and reliability in scientific research, a number of general scientific and special methods are used: method of analysis, synthesis, generalization, method of monitoring, observation, problem-thematic, typological and discursive methods. According to the form of information presentation, such types of media content as visual, audio, verbal and combi
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