Journal articles: 'Statical Methods'

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Vadasz, P. "A Second-Order Marginal Costs Approximation for Energy Storage Charging and Discharging Price Functions." Journal of Energy Resources Technology 111, no. 3 (September 1, 1989): 154–59. http://dx.doi.org/10.1115/1.3231417.

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A second-order technique is presented for the evaluation of peak/off-peak price functions, based on marginal costs methods, in energy storage technologies. This method is particularly useful in statical optimization of the fundamental parameters required for planning energy storage plants. Its applications permits to transform the original dynamic optimization problem into its statical equivalent, thus reducing considerably the computing time needed. This transformation introduces two additional parameters to be optimized using statical optimization methods, i.e., charging and discharging duration.

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Vadasz, P., and D. Weiner. "An Evaluation Method for Peak/Off-Peak Price Functions in Energy Storage Technologies." Journal of Energy Resources Technology 109, no. 1 (March 1, 1987): 21–25. http://dx.doi.org/10.1115/1.3231318.

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A method of evaluation for peak/off-peak price functions in energy storage technologies is presented. The method is particularly useful in statical optimization of the fundamental parameters required for planning energy storage plants. Its application permits to transform the original dynamic optimization problem into a statical equivalent problem, thus reducing considerably the computing time needed. This transformation introduces two additional parameters to be optimized using statical optimization methods, i.e., charging and discharging duration.

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Baranyai, Tamás. "On the duality of space trusses and plate structures of rigid plates and elastic edges." International Journal of Space Structures 35, no. 4 (August 24, 2020): 135–46. http://dx.doi.org/10.1177/0956059920947564.

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Dualities have been known to map space trusses and plate structures to each other since the 1980s. Yet the computational similarity of the two has not been used to solve the unfamiliar plate structure with the methods of the well-known truss. This article gives a method to find the forces and displacements of a plate structure with rigid plates and elastic edges, using a dual truss. The plates are assumed to be rigid in their respective planes only and deformable otherwise. The method provided is applicable for both statically determinate and indeterminate structures, subjected to both statical and kinematical loads.

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Hanaor, Ariel. "A Summary Survey of Prefabricated Spatial Frame Systems." International Journal of Space Structures 10, no. 3 (September 1995): 175–86. http://dx.doi.org/10.1177/026635119501000304.

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This article contains a summary of the characteristics of a large number of currently available commercial systems. The summary is presented in tabular form, corresponding to the hierarchical classification scheme presented in the second article in this issue. Features included in the summary table relate primarily to aspects of geometry, statical analysis and response, and assembly methods.

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Zhang, Guang, Wei Nie, Yong Lu, Jing Xi Chen, and Jun Rong Ma. "Dynamical and Statical Load Test Study on the Road Bridge of some Manufactory." Applied Mechanics and Materials 66-68 (July 2011): 1112–16. http://dx.doi.org/10.4028/www.scientific.net/amm.66-68.1112.

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This paper introduces the plan and the process of dynamical and statical load test study which is made on the road bridge. It can validate the quality of the bridge by comparing measured stress&deflection and theoretical calculation.Experimental results show that the computational methods and analytical methods are reliable, The stiffness and bearing capacity of the bridge meet the design requirements. The technology of load test and method of data analysis have high reference value to similar engineering.

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Buryachenko, V. A. "Multiparticle Effective Field and Related Methods in Micromechanics of Composite Materials." Applied Mechanics Reviews 54, no. 1 (January 1, 2001): 1–47. http://dx.doi.org/10.1115/1.3097287.

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The numerous approaches used in micromechanics can be classified into four broad categories: perturbation methods, self-consistent methods of truncation of a hierarchy, variational methods, and the model methods. In detail we will consider the self-consistent methods applied to linear elastic problems, based on some approximate and closing assumptions for truncating of an infinite system of integral equations involved and their approximate solution. We consider multiparticle effective field methods, effective medium methods, the Mori-Tanaka method, differential methods and some others. This review article tends to concentrate on methods and concepts, their possible generalizations, and connections of different methods, rather than explicit results. In the framework of a unique scheme, we undertake an attempt to analyze the wide class of statical and dynamical, local and nonlocal, linear and nonlinear micromechanical problems of composite materials with deterministic (periodic and non-periodic) and random (statistically homogeneous and inhomogeneous, so-called graded) structures, containing coated or uncoated inclusions of any shape and orientation and subjected to coupled or uncoupled, homogeneous or inhomogeneous, external fields of different physical natures. The last section contains a discussion of prospects for future work. The article includes 540 references.

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Reitman, Mark I. "Optimal Structural Design in the USSR." Applied Mechanics Reviews 42, no. 2 (February 1, 1989): 27–37. http://dx.doi.org/10.1115/1.3152419.

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Studies in structural optimization in Russia began more than a century ago and initially satisfied the needs of railroad engineering. Later Soviet academic researchers and engineers considered the optimum design of compressed and twisted bars, beams, arches, rigid frames, plates, shells, and various 3D structures under single and multiple statical, dynamical, and moving loads. Some new formulations of the optimization problems have been introduced and solved using classical and new mathematical methods. Several hundred contributions are briefly covered with references to 50 bibliographical sources.

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Leuck, Roland. "Development of a Mathematical Model to Find the Best Solutions for the Refurbishment of Energy-Efficient Buildings." Applied Mechanics and Materials 824 (January 2016): 421–28. http://dx.doi.org/10.4028/www.scientific.net/amm.824.421.

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An investor has the difficult decision to decide the insulation thickness, before he starts a refurbishment measurement. Due to a long life expectancy of the construction components, this decision should take into account not the immediately effective investment costs, but also the longer lasting running cost. Therefore we are suggesting and discussing some parameters to develop a mathematical approach to find the economical best insulation thickness. We will discuss statical and dynamical economical methods and in the end we will also look which influence have some different thermal conductivities.

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Haktanir, V., and E. Kiral. "Statical analysis of elastically and continuously supported helicoidal structures by the transfer and stiffness matrix methods." Computers & Structures 49, no. 4 (November 1993): 663–77. http://dx.doi.org/10.1016/0045-7949(93)90070-t.

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Khateeb, Mouhammed, Basheer Elias, and Fatema Al Rahal. "New Kinetic Spectrophotometric Method for Determination of Folic Acid in Pharmaceutical Formulations." International Letters of Chemistry, Physics and Astronomy 50 (May 2015): 169–78. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.50.169.

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A simple and sensitive kinetic spectrophotometric method has been developed for the determination of folic acid (FA) in bulk and pharmaceutical Formulations. The method is based on the oxidation of FA by Fe (III) in sulfuric acid medium. Fe (III) subsequently reduces to Fe (II) which is coupled with potassium ferricyanide to form Prussian blue. The reaction is followed spectrophotometrically by measuring the increase in absorbance at λmax 725 nm. The rate data and fixed time methods were adopted for constructing the calibration curves. The linearity range was found to be 1–20 μg mL-1 for each method. The correlation coefficient was 0.9978 and 0.9993, and LOD was found to be 0.91 and 0.09 μg mL-1 for rate data and fixed time methods, respectively. The proposed method has been successfully applied to the determination of FA in formulations with no interference from the excipients. Statical comparison of the results shows that there is no significant difference between the proposed and pharmacopoeial methods

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Kaveh, A. "Recent Developments in the Force Method of Structural Analysis." Applied Mechanics Reviews 45, no. 9 (September 1, 1992): 401–18. http://dx.doi.org/10.1115/1.3119768.

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The development of the force method of structural analysis has been hindered by the difficulty of generating a suitable maximal set of independent self-equilibrating stress systems, known as statical or null basis. Recent developments to overcome this problem can be classified as topological, combinatorial, algebraic, mixed and integrated force methods. Combinatorial methods are efficient and provide insight to the problems involved, however, further research is needed before a unified formulation can be made. Algebraic methods are simple and general in nature, however, their automation requires considerable amount of operations and storage. The insight to the problems are not present in these methods. Mixed methods incorporate the efficiency of the existing combinatorial methods and generality of the algebraic approaches. In this paper, the progress made in the analysis of structures by means of the force method is reviewed, and directions required for further advances are specified. It is hoped that such advances will make the force method competitive to the displacement approach in fields such as non-linear analysis and optimization of structures. This will hopefully put the force method as an efficient counterpart to the displacement approach in computational mechanics.

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Zafirovski, Zlatko, Igor Pesevski, and Jovan Papic. "Methodology for extrapolation of rock mass deformability parameters in tunneling." Facta universitatis - series: Architecture and Civil Engineering 10, no. 3 (2012): 235–44. http://dx.doi.org/10.2298/fuace1203235z.

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This article proposes one approach for extrapolation of necessary parameters for numerical analyses in tunnelling. The approach is named as an empirical - statical - dynamical method for extrapolation. The proposed methodology is based on combination of empirical classification rock mass methods, geophysical measurements and direct dilatometer deformability testing on a field. The analyses are prepared for purposes of investigation and design for several tunnels in Republic of Macedonia. One example for dividing of tunnel length in quasi-homogenous zones, as a basis for forming of geotechnical and numerical model that can be a basis for interaction analyses of rock - structures system and stress-strain behaviour of rock massif, is also given. The several original regressive models between rock mass quality, deformability and velocity of longitudinal seismic waves are shown.

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Andrés González‐Estrada, Octavio, Juan José Ródenas, Stéphane Pierre Alain Bordas, Marc Duflot, Pierre Kerfriden, and Eugenio Giner. "On the role of enrichment and statical admissibility of recovered fields ina posteriorierror estimation for enriched finite element methods." Engineering Computations 29, no. 8 (November 9, 2012): 814–41. http://dx.doi.org/10.1108/02644401211271609.

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Samborski, Sylwester, Jerzy Józwik, Jakub Skoczylas, and Mariusz Kłonica. "Adaptation of Fracture Mechanics Methods for Quality Assessment of Tungsten Carbide Cutting Inserts." Materials 14, no. 13 (June 22, 2021): 3441. http://dx.doi.org/10.3390/ma14133441.

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Tungsten carbide (WC) is well known as one of the hardest materials widely used in machining, cutting and drilling, especially for cutting tools production. Knowing fracture toughness grants the opportunity to prevent catastrophic wear of a tool. Moreover, fracture toughness of WC-based materials may vary because of different material compositions, as well as a different way of production. Hence, each material should be treated individually. In this paper, SM25T (HW) tungsten carbide (HW—uncoated grade, TNMR 401060 SM25T, manufactured by Baildonit company, Katowice, Poland) was taken into consideration. Sintered carbides—designated as S—are designed to be applied for machining steel, cast steel and malleable cast iron. Fracture mechanics methods were adapted to make a quality assessment of WC cutting inserts. Both quasi-statical three-point bending tests, as well as Charpy dynamic impact tests, were performed to calculate static and dynamic fracture toughness (KIC and KID, respectively). In addition, a special emphasis was placed on the microscopic analysis of fracture surfaces after impact tests to discuss material irregularities, such as porosity, cracks and so-called “river patterns”. There is a lack of scientific works in this field of study. However, cutting engineers are interested in obtaining the experimental results of that kind. Although there are a few standardized methods that may be used to determine fracture toughness of hard metals, none of them is expected to be the most reliable. Moreover, there is a lack of scientific works in the field of determining static and dynamic fracture toughness of WC by the presented method. The proposed examination solution can be then successfully used to calculate toughness properties of WC-based materials, as the results obtained seem to be with a good agreement with other works.

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Chen, Jian, Tomohide Takeyama, Hideyuki O-Tani, Kohei Fujita, Hiroki Motoyama, and Muneo Hori. "Using High Performance Computing for Liquefaction Hazard Assessment with Statistical Soil Models." International Journal of Computational Methods 16, no. 05 (May 28, 2019): 1840005. http://dx.doi.org/10.1142/s0219876218400054.

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Conventional methods for liquefaction assessment using engineering indices such as Factor of safety against Liquefaction (FL) tend to overestimate liquefaction hazards. The soil dynamics analysis-based assessment with automatic modeling is more rational and robust. Soil properties are known for large uncertainties. Rather than deterministic soil models, statistical models for soil parameters should be considered. With automatic modeling, a large number of statistic models can be generated without difficulty. The problem becomes how to assess liquefaction hazard with statistic models in an efficient way. Using high performance computing, we develop an efficient liquefaction assessment method for statistical modeling of soils. A high parallel efficiency can be achieved and a large number of statical models of the order of 104 can be simulated within a reasonable time span. The method developed in this paper can be used as an efficient tool for unravelling critical parameters of soil liquefaction.

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Zhang, Shengkai, Li Gong, Qi Zeng, Wenhao Li, Feng Xiao, and Jintao Lei. "Imputation of GPS Coordinate Time Series Using missForest." Remote Sensing 13, no. 12 (June 12, 2021): 2312. http://dx.doi.org/10.3390/rs13122312.

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The global positioning system (GPS) can provide the daily coordinate time series to help geodesy and geophysical studies. However, due to logistics and malfunctioning, missing values are often “seen” in GPS time series, especially in polar regions. Acquiring a consistent and complete time series is the prerequisite for accurate and reliable statical analysis. Previous imputation studies focused on the temporal relationship of time series, and only a few studies used spatial relationships and/or were based on machine learning methods. In this study, we impute 20 Greenland GPS time series using missForest, which is a new machine learning method for data imputation. The imputation performance of missForest and that of four traditional methods are assessed, and the methods’ impacts on principal component analysis (PCA) are investigated. Results show that missForest can impute more than a 30-day gap, and its imputed time series has the least influence on PCA. When the gap size is 30 days, the mean absolute value of the imputed and true values for missForest is 2.71 mm. The normalized root mean squared error is 0.065, and the distance of the first principal component is 0.013. missForest outperforms the other compared methods. missForest can effectively restore the information of GPS time series and improve the results of related statistical processes, such as PCA analysis.

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Vyas, Deepika, Bharath Galra, Rishubh Dagli, Prabhu Prakash Gupta, Ashish Vyas, and Divya Parekh. "Characterization of bacteria in betel quiz chewers and non -chewers and their associated oral health status." Journal of Research in Dentistry 4, no. 4 (May 4, 2017): 128. http://dx.doi.org/10.19177/jrd.v4e42016128-132.

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Aim: To evaluate oral health status, periodontal status, gingival status, oral lesions and bacterial characterization among betel quid chewers and non chewers.Material and Methods: The data was collected regarding socio-demographic characteristic, oral hygiene status, gingival status, periodontal status, bacterial characterization among betel quid chewers and non chewers. The microbiological examination was carried out to assess the micro flora. The statical analysis was done by using SPSS version 21(Chicago ,USA). The p value≤ 0.05 was found to be statistically significant.Results: Aerobic as well as anaerobic bacteria were more characterized among quid chewers as compared to non quid chewers. Significant co-relation was found between oral hygiene status and gingival status ,CPI and LOA, oral lesions and bacterial characterization among quid chewers characterization (r=0.391, 0.932, 572 respectively p-value=0.000, S) and among non quid chewers significant correlation was found between CPI and LOA scores (r=0.658 p-value=0.000, S).Conclusions: Chewing betel quid has been found in role of detoriation of oral hygiene gingival status periodontal status and also development of oral lesions.

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Smila, Baiba, Andra Fernāte, and Velga Zaļaiskalna. "THE EFFECT OF ANKLE AND SUBTALAR JOINT SOMATIC DYSFUNCTION CORRECTION TO IMPROVE ORIENTEER STATIC BALANCE." SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 3 (May 26, 2016): 553. http://dx.doi.org/10.17770/sie2016vol3.1473.

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The most frequent injuries among sports orienteers are the ankle injuries. The one of the most effective means to prevent the ankle injuries and recurrent ankle injuries is balance and stability development. The aim of this study is to find out the most effective method to develop static stability in the previously injured ankle for orienteers: osteopathic treatment of the ankle and subtalar joints or balance exercises, or the combination of osteopathic treatment of the ankle and subtalar joints and balance exercises. The effectiveness analysis of the intervention methods was conducted with the use of Digital Balance Analyzer (DBA) for the assessment of statical balance. 36 orienteers (12 to 18 years old) were randomized in three groups to an intervention, after being assessed at baseline and then reassessed one week later. Static balance improvements are only when using osteopathy and ankle joints subtalar somatic dysfunction correction together with balance exercises. Separate osteopathy or balance exercises will not give results as effective as the combination of these two effects.

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Daidano, Jeando Khan, Nazia Azam Yusfani, and Bilqees Daidano. "SUICIDE AND DEPRESSION." Professional Medical Journal 25, no. 11 (November 10, 2018): 1730–34. http://dx.doi.org/10.29309/tpmj/18.4630.

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Objectives: In this study we will assess the risk factor of suicide in thosepatients who have attempted suicide with OPP. Design: Descriptive and Retrospective. Setting:Department of Medicine PUMHS Nawabshah. Period: June 2016 to November 2017. Methods:Study was done using questionnaire on Performa. Patients admitted with history of suicidal OPPpoisoning. Exclusion criteria were poisoning by other methods, not interested to participate forthe study. Psychiatric assessment was made by using BDI Scale criteria. Statical analysis wasanalysed by software SPSS 15 version. Results: 116 patients were enrolled for this study. Malewere 43 and females were73. Age range 14 years to 45 years mean age=22-+4. Educationlevel. Depression Level: 94 patients were in severe depression, 7 patients were in extremedepression and 15 patients were in moderate depression. Conclusion: Patient of Suicide withopp should be screened for psychiatric disorder. Majority of the patients and their relatives aftertreatment think that now patient is normal. Education about risk of suicide shoud be explainedto patient and relatives. Psychiatric detailed history and treatment is compulsory to preventreattempt.

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Avci, Derya, and Akif Dogantekin. "An Expert Diagnosis System for Parkinson Disease Based on Genetic Algorithm-Wavelet Kernel-Extreme Learning Machine." Parkinson's Disease 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/5264743.

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Parkinson disease is a major public health problem all around the world. This paper proposes an expert disease diagnosis system for Parkinson disease based on genetic algorithm- (GA-) wavelet kernel- (WK-) Extreme Learning Machines (ELM). The classifier used in this paper is single layer neural network (SLNN) and it is trained by the ELM learning method. The Parkinson disease datasets are obtained from the UCI machine learning database. In wavelet kernel-Extreme Learning Machine (WK-ELM) structure, there are three adjustable parameters of wavelet kernel. These parameters and the numbers of hidden neurons play a major role in the performance of ELM. In this study, the optimum values of these parameters and the numbers of hidden neurons of ELM were obtained by using a genetic algorithm (GA). The performance of the proposed GA-WK-ELM method is evaluated using statical methods such as classification accuracy, sensitivity and specificity analysis, and ROC curves. The calculated highest classification accuracy of the proposed GA-WK-ELM method is found as 96.81%.

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Meddour, Yanis, Imène Zerrouk, Fatma Zohra Souid, Mohamed Amine, Samia Chaib, and Djafer Bacha. "Niveau des CD4+ CD38+ HLA-DR+ comme évolution des biomarqueurs de l'infection par le VIH indépendamment de la thérapie antirétrovirale." Batna Journal of Medical Sciences (BJMS) 4, no. 2 (December 31, 2017): 155–58. http://dx.doi.org/10.48087/bjmsoa.2017.4206.

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Introduction. HIV infection is characterized by an enhanced synthesis of cytokines and chemokines, a quantitative T cells disequilibrium and increased Turn over that signs a chronic activation of the immune system. Phenotype change in CD4+ T cells by over-expression of activation antigens CD38 and HLA-DR are suggested as markers of this process. Materials and methods. We investigated by four-color flow cytometry the expression of both activation markers on peripheral CD4+ T cells in 106 HIV-1 Algerian infected patients and 34 uninfected controls. Percentage’s expression of CD4+CD38+HLA-DR+ cells was compared with clinical stages, viral load and anti-retroviral treatment (ARV). Results. The proportion of CD4+ T cells coexpressing HLA-DR and CD38 was higher in infected patients than in controls (respectively, 14.2 % ± 3.6 vs. 5.8 % ± 4.1, P=0.01), in symptomatic HIV patients than asymptomatic (13 % ± 3 vs. 15.9 % ± 4.6, P=0.01) and followed viral load kinetics. In matched treated and untreated patients, activated CD4+T proportion does not show any statical difference (respectively, 13 % and 14 %, p=0.09). Conclusion. In our cohort, CD4+ T cells expressing CD38 and HLA-DR were associated with HIV infection and correlated with disease progression, regardless of ARV treatment. As CD4+ count and viral load, this lymphocyte subset may be an interesting disease evolution marker; its value remains to be determined in prognostic or as therapy response indicator.

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Albayrak, Serdal, Sait Ozturk, Emre Durdag, and Ömer Ayden. "Surgical management of recurrent disc herniations with microdiscectomy and long-term results on life quality: Detailed analysis of 70 cases." Journal of Neurosciences in Rural Practice 7, no. 01 (January 2016): 87–90. http://dx.doi.org/10.4103/0976-3147.165426.

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ABSTRACT Background: Aim of this paper is to recall the surgical technique used in the recurrent lumbar disc herniations (LDHs) and to share our experiences. Materials and Methods: Out of series of 1115 patients who underwent operations for LDH between 2006 and 2013, 70 patients underwent re-operations, which were included in this study. During surgery, lateral decompression performed over the medial facet joint to the superior facet joint border was seen after widening the laminectomy defect, and microdiscectomy was performed. The demographic findings of the patients, their complaints in admission to hospital, the level of operation, the condition of dural injury, the first admission in the prospective analysis, and their quality of life were evaluated through the Oswestry scoring during their postoperative 1st, 3rd, 6th-month and 1st, 3rd, 5th and 7th-year follow-up. In the statical analysis, Friedman test was performed for the comparison of the Oswestry scores and Siegel Castellan test was used for the paired nonparametrical data. A P < 0.05 was considered statistically significant. Results: Considering the Oswestry Index during the follow-ups, the values in the postoperative early period and follow-ups were seen to be significantly lower than those at the time of admission to hospital (P < 0.05). None of the patients, who re-operated by microdiscectomy, presented with iatrogenic instability in 7 years follow-up period. Conclusion: Microdiscectomy performed through a proper technique in the re-operation of recurrent disc herniations eases complaints and improves the quality of life. Long-term follow-ups are required for more accurate results.

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Sharma, Mohan Kumar. "Street Children in Nepal: Causes and Health Status." Journal of Health Promotion 8 (November 22, 2020): 129–40. http://dx.doi.org/10.3126/jhp.v8i0.32992.

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Street children refer to the children who have not reached adulthood, for whom the street has become their habitual abode and/or a source of livelihood. The reasons for their connection to the street will vary from nation to nation, city to city, and from person to person. This research envisaged to explore the causes of being street children and assess their health status of two study areas, Kathmandu and Birjung, Nepal. The research followed descriptive, exploratory and applied 'QUAN-qual', quantitative dominant mixed methods. The two: semi-structured questionnaire with 150 participants for quantitative data and Key-in-depth interviews (KIIs) with 18 participants for qualitative data were employed in this research. The research areas were purposively selected as per the researcher's pre-observation and respondents on the basis of convenience sampling. The quantitative data were analyzed using the Statical Package for the Social Science (SPSS) software version 20.0 and qualitative data were thematically analyzed using content analysis. The findings of the study depicted that the dominant causes to be street children are family-based causes. Economic, social, and other causes are second, third, and fourth respectively in the study area. Additionally, gender and alcohol consumed behavior was found significant where education level and age had no significance to determinants of the health status of street children. The overall implication of the study signifies that the attention has been shifted from treating the biological to encouraging street children to gain positive necessary health skills that are based on self-care and self-management behaviors including knowledge, beliefs, attitude, motivation, and behaviors.

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Harleman, Donald R. F., William C. Nolan, and Vernon C. Honsinger. "DYNAMIC ANALYSIS OF OFFSHORE STRUCTURES." Coastal Engineering Proceedings 1, no. 8 (January 29, 2011): 28. http://dx.doi.org/10.9753/icce.v8.28.

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Analytical procedures are presented for calculation of the dynamic displacements of fixed offshore structures in oscillatory waves. The structure considered has four legs in a square configuration with waves impinging normal to one side; however, the procedures are general and may be applied to other configurations and wave directions. The horizontal displacement of the deck is determined as a function of time by application of vibration theory for a damped, spring-mass system subject to a harmonic force. The instantaneous wave force on each leg is composed of a hydrodynamic drag component and an inertial component as in the usual "statical" wave force analysis. The wave force expression is approximated by a Fourier series which permits calculation of the platform displacement by superposition of solutions of the equation of motion for the platform. Depending on the ratio of the wave frequency to the natural frequency of the platform, the structural stresses may be considerably high* than those found by methods which neglect the elastic behavior of the structure. The highest wave to be expected in a given locality is not necessarily the critical design wave. Maximum displacements and structural stresses may occur for smaller waves having periods producing a resonant response of the platform. Displacement measurements in a wave tank using a platform constructed of plastic are presented to show the validity of the analytical method. Both small and finite amplitude waves are used over a wide range of frequency ratios. A digital computer program (7090 FORTRAN) is used for the displacement calculation.

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Nikityuk, D. B. "Anthroponutritiology as New Scientific Area." Journal of Anatomy and Histopathology 7, no. 4 (January 11, 2019): 9–19. http://dx.doi.org/10.18499/2225-7357-2018-7-4-9-19.

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The modern personalized medicine using in its toolkit high-tech methods of diagnostic and treatment bases on accomplishments of scientists in many directions and one of the most important is the Anthropology. On top of trends Clinical Anthropology has as a field of research the study of consistent patterns and definition varieties of the typological alterability of the organization of the human body and its parts. Due to the current-day approaches developed mostly in the Federal Research Center of Nutrition and Biotechnology the Anthropology brings to the Nutritiology the information about individual distinctions of physical and nutritional status of humans considering of somatotypological variability, age, sex and other factors. Anthropological view brings to specialists standards and norms of the somatic growth which differentiated with the consideration of age-and-sex groups and of stature’s type (somatic type). In turn, the capabilities of Nutritiology and Dietology (dietotherapy, patient-specific nutrition and etc) could assure the correction of the image, nutritional status, many of anthropometric figures. Submitted data show different levels of morbidity, specific clinical character of the state of different diseases, including alimentary diseases, in different somatic type groups. The efficiency of the dietetic therapy for some alimentary diseases (alimentary obesity) also is dissimilar in groups of the different somatic types that means personify patient-specific statical demand for each person. Adducted materials point out the existence of close affinity and crosstalk between scientific disciplines – Anthropology and Nutritiology. No less, mentioned materials allow to recommend widespread use of anthropomorphic method in clinical practice providing individual attitude for the patient.

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Cosola, Saverio, Paolo Toti, Enrico Babetto, Ugo Covani, Miguel Peñarrocha-Diago, and David Peñarrocha-Oltra. "In-Vitro Investigation of Fatigue and Fracture Behavior of Transmucosal versus Submerged Bone Level Implants Used in Fixed Prosthesis." Applied Sciences 11, no. 13 (July 3, 2021): 6186. http://dx.doi.org/10.3390/app11136186.

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Background: The present in vitro study aimed to investigate the fatigue performance of different dental fixtures in two different emergence profiles. Biological failures are frequently reported because the problem canonly be solved by replacing a failing implant with a new one. Clinicians addressed minor mechanical failures, such as bending, loosening or the fracture of screws, abutment, or the entire prosthesis, by simply replacing or fixing them. Methods: Transmucosal and submerged bone-level dental implants underwent fatigue strength tests (statical and dynamical performance) by a standardized test: UNI EN ISO 14801:2016. Two types of emergence profiles (Premium sub-crestal straight implant with a cylindrical-shaped coronal emergence or Prama one-piece cylindrical-shape implant with transmucosal convergent neck and hyperbolic geometry) were tested, and dynamic fatigue were run to failure. Data was analyzed by a suitable statistical tool. Results: The Wöhler curve of 0.38 cm Premium group c2, appeared to be significantly different from that of the 0.38 cm Prama group c3 (nonparametric one-way ANOVA χ2 = 6; degree of freedom = 1; probability = 0.0043) but not from that of the 0.33 cm Premium group c1 (nonparametric one-way ANOVA χ2 = 0.62; degree of freedom = 1; probability = 0.4328). Fatigue performance of configuration 2 was one and a half times better than that of configuration 3. Group c3 had a better ultimate failure load (421.6 ± 12.5 N) than the other two settings i.e., c1 (324.5 ± 5.5 N) and c2 (396.3 ± 5.6) reaching almost a nonsignificant level. Conclusions: It was observed that a transmucosal implant design could provide the highest resistance to static fracture. On the other hand, an equicrestal implant design could increase dynamic endurance.

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Suresh, Vaddadi, N. S. R. C. Guptha, and E. Usha Bhargavi. "Association of Micro and Macrovascular Complications with Fatty Liver in Patients with Type 2 Diabetes Mellitus." International Journal of Medical and Dental Sciences 3, no. 1 (January 1, 2014): 270. http://dx.doi.org/10.19056/ijmdsjssmes/2014/v3i1/80652.

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Background: Fatty liver is a fairly common entity seen in the diabetic population. Studies showed that liver adiposity is independently associated with Insulin Resistance and can substantially increase the risk of various micro and macrovascular complications of diabetes mellitus.Aims: Identifying various micro and macrovascular complications and finding their association with fatty liver disease in type 2 diabetes patients.Material and Methods: 141 diabetic patients admitted in a tertiary care center over a two year period were screened for fatty liver by ultrasonography of the abdomen and were classified into FL (fatty Liver) group and NFL (non fatty liver) group. All patients were investigated for complications like nephropathy, neuropathy, retinopathy, cardiac and peripheral vascular disease. Statistical analysis was done to find the association of complications with fatty liver.Results: out of 141 patients, 49 (35%) had fatty liver. Leading complication was neuropathy (31.2%), followed by nephropathy (11.3%), retinopathy (10.6%), cardiac disease (9.2%) and peripheral vascular disease (3.55). Between FL and NFL groups, Diabetic neuropathy (40.8% vs. 23.9%) and cardiac disease (16.3% vs. 5.4%) showed statical significance (p<0.05), while other complications were more or less equally prevalent in the two groups.Conclusions: Fatty liver is seen in one third of diabetic patients. vascular complications like neuropathy and cardiac disease are more commonly seen in diabetic patients with fatty liver than those without fatty liver.

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Liu, Shi Mei, and Dong Sheng Huang. "Effection of Relevant Parameters of Infilled Frame Wall on its Structural Lateral Stiffness." Advanced Materials Research 255-260 (May 2011): 1979–83. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.1979.

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Statical analysis of infilled frame structure was conducted on 3D finite element models by means of software ANSYS10.0. Analyses on relevant parameters of infilled frame walls with or without openings have been carried out seperately, and it is found that the relevant stiffness of the model gradually increases with the ratio of the wall’s width to its height. However, the effection of the width to height ratio of the wall on its structural lateral stiffness becomes much smaller when the value of the width to height ratio is larger than 1.5. The effection can be basically ignored when the width to height ratio is larger than 1.8. It is investigated that the ratio of posts inertia moment to beams has great influence on model’s relevant stiffness. The relevant stiffness of frame structure decreases with the growth of the ratio of posts inertia moment to beams (I2/I1). For a long time, Filling Wall is widely used in multi-storey buildings and Civil Construction Structures, for its flexible architecture flats and large interior space, etc. However, because of the imperfection in analysis methods and the defects in model, pure- framework design is used in civil architectures, and the weight of filling wall is calculated by converting to the Line Load on the beam. According to the analysis of 5.12 Wenchuan earthquake[1], the early filling wall absorbs a large earthquake because of its stiffness, while its Adhesive Tensile Strength is low, which making the earthquake-damage to the filling wall is more serious than that to the frame structure. By analyzing the parameters in non-opening and opening filling wall and changing a given parameter, while keeping other parameters unchanged. This paper studies the influence on the Lateral Stiffness of Frame Structure, to provide Earthquake Fortifying Areas with reference data in the design process of filling wall.

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Albab, Muhamad Ulil, Heriyanti Widyaningsih, Sri Hartini, and Ambarwati Ambarwati. "Incidence of Neonatal Asphyxia Events In Mothers Maternity With Early Ruptured Amniotic Fluid." South East Asia Nursing Research 2, no. 3 (September 30, 2020): 99. http://dx.doi.org/10.26714/seanr.2.3.2020.99-104.

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Asphyxia and Intrauterine fetal dead (IUFD) are a threat if a premature rupture of membranes is not immediately treated quickly and appropriately. Neonatal asphyxia can occur due to complications from premature rupture of membranes. IMR in Indonesia is the fifth country for ASEAN countries, 35/1000 birth. Based on data from RA Kartini Hospital in Jepara, asphyxia cases from approximately (12,6%) and incidence of premature rupture of membranes 816 cases or around (85,8%). While the incidence of neonatal asphyxia born from PROM totalled 15 cases or about (1,6%). This research using quantitative descriptive methods with cross-sectional design. This research was conducted on April 21-23, 2020 using a total sampling method of 148 respondents. The data used are secondary data with a single variable, namely the incidence of neonatal asphyxia in mothers with maternity premature rupture of membranes. Data analysis uses a descriptive statical test. Aims to know the description of the incidence of neonatal asphyxia in mothers with maternity premature rupture of membranes in General Hospital of Raden Ajeng Kartini Jepara 2019 and describe the incidence of neonatal asphyxia in mothers with maternity premature rupture of membranes in General Hospital Raden Ajeng Kartini Jepara 2019. The result showed that of 148 respondents on average had no risk age (20-35 years) as many as 120 respondents (81,1%) and the average parity PROM mothers as many as 148 respondents had multiparous parity of 85 respondents (57,4%). Then from 148 PROM mothers, 6 respondents (4,1%) gave birth to babies who had asphyxia. The highest incidence of neonatal asphyxia in mothers with maternity premature rupture of membranes was mild asphyxia of 3 respondents (2,0%), moderate to severe asphyxia of 2 respondents (1,4) and moderate asphyxia of 1 respondent (0,7%). The average degree of asphyxia in women with premature rupture of membranes is mild asphyxia.

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Ahmad, Mujahid Syaiful. "KAJIAN SEAKEEPING KAPAL FERRY RO-RO 750 GT BERBASIS PENGUJIAN HIDRODINAMIKA." ROTOR 11, no. 2 (November 1, 2018): 8. http://dx.doi.org/10.19184/rotor.v11i2.9336.

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The Ferry Ro-Ro is a ship that functions to crossing inter island and to transport vehicles, passengers and goods. Building a ship requires a very large investment value so that the design of the ship is a very important consideration by conduct the intens study to determine the performance of a ship, one of them is the performance of the ship motion, endurance, and reliability while sailing which can be seen by conducting a hydrodynamic test in the form of a seakeeping test on the Ferry Ro-Ro Ship Model. This study conduct the seakeeping testing due to Ferry Ro-Ro 750 GT Ship Model which aims to predict the pattern of ship behavior by using the seakeeping test methods at Manoeuvering and Ocean Basin at Laboratorium Hidrodinamika Indonesia at Balai Teknologi Hirdoinamika - BPPT with th parameter Wave Height Hs = 2.50 m, Wave Period Tp = 9.00 s by heading 180 deg and 135 deg, and model scale is 1 : 21.19. The seakeeping test procedure for the Ferry Ro-Ro 750 GT Ship Model is based on ITTC No 7.5-02-07-02 standards. Testing of the ship model is conducted by using the method of free running where ship moving at a speed of 12 knots (actual scale). Analysis of measurement results is displayed in the form of Response Amplitude Operator (RAO) and statical analysis. The hydrodynamic test results in the form of a seakeeping test of Ferry Ro-Ro 750 GT Ship Model shows the value of Root Mean Square (RMS) of each direction of the ship relative to the direction of arrival of the wave (heading) 180 deg with roll value = 0.825 deg and pitch value = 2.231 deg. And heading 135 deg with roll value = 2.410 deg and pitch value = 1.797 deg, where NORDFORSK 1987 criteria standard for RMS roll value is 6 deg, and RMS pitch value is 1.5 deg. Keywords: Seakeeping, Ferry Ro-Ro, Hydrodynamics

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Kukreja, Janet Baack, Courtney M. Chang, Mohamed Seif, Neema Navai, Ashish M. Kamat, Colin P. N. Dinney, and Jay Bakul Shah. "Does liposomal bupivacaine use intraoperatively decrease postoperative narcotic use in radical cystectomy patients?" Journal of Clinical Oncology 35, no. 6_suppl (February 20, 2017): 311. http://dx.doi.org/10.1200/jco.2017.35.6_suppl.311.

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311 Background: Bupivacaine liposome injectable suspension (LB) can be used to help control postoperative pain. It slowly releases bupivacaine for up to 96 hours after injection. This study sought to determine if the use of LB intraoperatively for radical cystectomy (RC) patients decreases postoperative narcotic use. Methods: A retrospective cohort study was performed. 281 patients underwent RC between November 2013 and May 2016, 203 received LB. LB was administered after fascial closure but before skin closure by performing suprafascial and subfascial injection with 20ml of LB. Patient demographics, BMI, renal function, operative characteristics, and the total postoperative intravenous morphine equivalents were reviewed. Where appropriate chi-squared, Mann-Whitney and t-tests were used for statical analysis. Multivariable analysis and linear regression models were performed. Because enhanced recovery principles were used simultaneously, enhanced recovery status was also used to adjust for predictors of post-operative opioid use. Results: There was no difference in baseline demographics, BMI, renal function or baseline opioid use between the LB and non-LB group. The operative time was longer in those who had LB administered and there were more open RCs performed in the LB group. Total morphine equivalents averaged to 8.0 mgs for the LB group and 50.7 mgs for the non-LB group, p-value <0.001. More patients had epidurals and IV PCA pumps in the non-LB group, (p=0.001 and <0.001, respectively). There were 42 patients whom did not require any IV morphine equivalents in the LB group compared to only 4 in the non-LB group (p=0.002). After adjusting for modality, and operative time, the linear regression model was predictive of less IV morphine equivalents in those with LB, p=0.044. Conclusions: The addition of LB to enhanced recovery principles increases the number of patients with zero narcotic use postoperatively. Irrespective of open or robotic modality and operative time, LB use decreases opioid use after RC.

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TUNAKAN DALGIÇ, Ceyda, Aytül Zerrin Sin, and Fatma Ömür Ardeniz. "Retrospective Analysis of Autoimmune Diseases and Immunologic Characteristics of the Adult Primary Immune Deficiency Cohort: 17 Years Experience of the Tertiary Referral Immunology Center in Turkey." Asthma Allergy Immunology 19, no. 1 (April 30, 2021): 12–23. http://dx.doi.org/10.21911/aai.545.

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ABSTRACT Objective: Primary immunodeficiencies (PIDs) consist of genetically heterogeneous disorders. The spectrum can include infectious diseases, malignancy, allergy, and autoimmunity. We aimed to analyze the frequency and variety of autoimmune diseases (ADs) in PIDs and describe their clinical and laboratory features. Materials and Methods: Ninety-two patients with PID followed by Ege University Medical Faculty between 2000 and 2017 were enrolled in this retrospective, cross-sectional study. All patients’ medical records were reviewed using the demographic information, type of PIDs and ADs, ADs-related autoantibodies, and basic and immunologic laboratory findings. ADs were diagnosed using clinical and complementary paraclinical findings by an immunologist and/or a subspecialist related to the affected organ or system. Results: We evaluated 50 male and 42 female PID patients with a mean age of 40.92 (18-86). Twenty-nine (32 %) patients (15 females/14 males) with a mean age of 43.8 (19-78) had ADs. In our study group, the most commonly detected type of PID with AD is common variable immune deficiency (CVID) (n=17); followed by combined immune deficiency (CID) (n=3), CTLA4 deficiency (n=2), selective IgA deficiency (sIgAD) (n=2), specific IgG subgroup deficiency (n=1), autoimmune polyglandular syndrome (APS) with hypogammaglobulinemia (n=1), dyskeratosis congenita (DC) (n=1), Osler-Rendu-Weber (ORW) syndrome with CVID-like PID (n=1), and cartilage-hair hypoplasia (CHH) (n=1). According to systematic assessments, ADs resulted in endocrinologic 14%, dermatologic 10.8%, rheumatologic 9.7%, gastroenterological 9.7%, hematological 8.6%, and neurologic disorders 1%. The frequency of ADs was higher in CVID cases than other types of PIDs (p <0.05). Basic and immunologic laboratory findings of the PIDs with and without ADs were analyzed and compared; however, no statical significant difference was obtained between the groups. Conclusion: We have analyzed the frequency and variety of ADs in a adult PID cohort in Turkey. Patients presenting with multiple ADs should be screened for having an underlying PID. Keywords: Primary immune deficiency, autoimmunity, autoantibody, immunologic parameters, frequency

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Aggarwal, Krittika, Arun K. Singh, Sameer M. Halageri, Vijay Kumar, Brijesh Mishra, and D. N. Upadhyay. "Evaluation of Role of Arterialization of Venous Flaps in Abdomen in Rats." Indian Journal of Plastic Surgery 54, no. 01 (January 2021): 069–74. http://dx.doi.org/10.1055/s-0041-1725227.

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Abstract Introduction Reconstruction forms the primary tenet in plastic surgery. Venous flaps are a known option but the survival is limited. Arterialization of venous flap can enhance its survival. While various techniques of arterialization of venous flaps are described, there are very few studies comparing them. Material and methods The current study was conducted among 34 rats weighing 160 to 200 grams. The rats were divided into four groups. Group I—islanded epigastric flap was raised with superficial caudal epigastric vessels as pedicle. Group II—arterialized flow through venous flap was raised with superficial caudal epigastric vein (SCEV) as afferent and lateral thoracic vein as drainage vein. Side-to-side anastomosis was done between femoral artery and vein, lateral to the origin of superficial caudal epigastric artery. Group III—after raising the flap, as in group II, femoral vein was ligated proximal to superficial caudal epigastric vessels. Group IV—an arterialized flow through venous flap was raised with superficial caudal epigastric vein as afferent and lateral thoracic vein as drainage vein. End-to-side anastomosis was done between femoral artery and superficial caudal epigastric vein. Animals that died before completion of the study were excluded. The color changes of flaps were noted. Flap survival was expressed as a percentage of the total flap surface area. The patency of anastomosis was seen on postoperative day 5. Results There was no total flap failure. On statical analysis, the flap survival area on day 5 between Group I and Group IV was not significant (p value 0.431). The survival area in Group I (78.85 ± 10.54%) was comparable to Group IV (65.71 ± 20.70%). Group II and III had poor results as compared with Group I. In four rats, thrombosis of arteriovenous anastomosis was noted with flap survival area of 30 to 33%. Conclusion It was noted that epigastric venous flaps with end-to-side anastomosis between femoral artery and superficial caudal epigastric vein (group IV) have survival area comparable to islanded flaps.

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Shatylo, V. B., L. A. Bodretska, I. S. Shapovalenko, H. P. Voinarovska, and Zh S. Butynets. "Pentoxyphylline: possibilities to reduce manifestations of chronic heart failure with preserved left ventricular ejection fraction in elderly." Zaporozhye Medical Journal 23, no. 1 (April 7, 2021): 24–31. http://dx.doi.org/10.14739/2310-1210.2021.1.224839.

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The aim: to study the effect of add-on pentoxifylline therapy on the structural and functional indicators of the heart state, endothelial function, quality of life and physical abilities in patients with chronic heart failure with preserved left ventricular ejection fraction. Materials and methods. The indicators of the structural and functional state of the heart, endothelial function, quality of life and physical abilities of patients older than 60 years, who were followed-up in the Department of Cardiology of the State Institution “D. F. Chebotarev Institute of Gerontology of the NAMS of Ukraine”, based on 67 case histories, 37 of them were prescribed pentoxifylline as add-on therapy to the standard therapeutic regimen. Statistical data were calculated using modern application packages, in particular SPSS v.22, Statistica 7.0, MedCalc statical software v.11.5.0.0. The significance level was assessed using paired and unpaired Student's t-test with Bonferroni corrections, and the correlation and two-way analysis of variance were performed. Results. A significant additional effect of pentoxifylline treatment on the indicators of maximum blood flow in the forearm microvessels in response to the reactive hyperemia test, which characterizes the ability of the microvessel endothelium to synthesize relaxation factors, was detected. Patients who additionally received pentoxifylline showed significantly better indicators of left ventricular myocardial relaxation and reduction of hypertrophy than those on the standard therapy. There was a significant increase in walking distance in the third year of treatment in the patients who additionally received pentoxifylline. There was no difference in the impact on the quality of life of the patients. Conclusions. The addition of pentoxifylline to the standard therapy in patients with chronic heart failure with preserved left ventricular ejection fraction significantly reduces myocardial hypertrophy, improves diastolic relaxation, increases volumetric blood flow velocity in microvessels mediating reactive hyperemia, which may contribute to further stabilizing the clinical course of the disease and increasing 6-minute walking distance. The presented data are an additional evidence of pathogenetically reasonable therapy with pentoxifylline in patients with chronic heart failure with preserved left ventricular ejection fraction, which allows us to consider this drug as potentially promising for the routine treatment of such patients.

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Greenberg, Jacob W., Ganesh Sanekommu, William M. Hughes, Thomas M. Shelton, Christopher R. Koller, Caleb Natale, Stephanie Miller, Jonathan L. Silberstein, and L. Spencer Krane. "Pinpointing uncharacterized prostate cancer in active surveillance patients through mpMRI biopsy." Journal of Clinical Oncology 39, no. 6_suppl (February 20, 2021): 210. http://dx.doi.org/10.1200/jco.2021.39.6_suppl.210.

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210 Background: The UroNav fusion biopsy system allows for the real time visualization of the prostate using multi-parametric MRI (mpMRI) data. This technology has become a valuable instrument for staging prostate cancer at the time of PSA elevation. However, data is still yet emerging over the use of this tool for patients currently being followed on an active surveillance (AS) protocol. In this study we sought to evaluate the efficacy of the UroNav system in patients on AS. Methods: Patients were enrolled into our prospective study, at a single center institution, approved by the Southeast Louisiana Veterans Health Care System (SLVHCS) IRB. Inclusion criteria for this study was men previously enrolled in an active surveillance protocol with a life expectancy ≥10 years. Statical analysis was performed using R 4.0.2 (Ann Arbor, MI). Results: A total of 103 patients were entered into this study for analysis. These patients had a median age of 67.1(62.8 - 70.8) and BMI of 28.6(25.5 - 32.3). The clinical profiles of these patients were median PSA of 6.36(4.65 - 8.89) with a velocity slope of (0.065 (-0.14 - 0.27), TRUS volume of 39.5(32.2 - 56.8), PSAD of 0.15(0.09 - 0.23), and a PI-RAD score of 4(3 – 5). A logistic regression was performed using upgrading on UroNav or Template bx as the outcome. Patients with an increased PSA were more likely to upgrade of Bx (OR = 1.2 (1.05 - 1.39)). Additionally, patients with decreasing MRI volumes were also more likely to upgrade on Bx (OR = 0.97 (0.94 - 0.98)). A total of 42 (40%) patients upgraded on either MRI or Template bx from their initial AS workup. MRI found 13 (12.6%) patients with an upgraded GG that displayed consistent or benign disease on template. Conversely, template also found 13 (12.6%) unique patients who upgraded but were found to have constant or benign disease on mpMRI. Conclusions: mpMRI guided biopsy is a useful tool that can further assist physicians in characterizing prostate cancer in patients being concurrently followed on an active surveillance protocol. MRI is able to find clinically significant cancer that would have otherwise been missed on traditional template biopsies. [Table: see text]

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Tani, Hiroaki. "Before using Statisical Methods." Journal of exercise physiology 4, no. 3 (1989): 111–14. http://dx.doi.org/10.1589/rika1986.4.111.

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Miller, Ronald E., and Ellad B. Tadmor. "Hybrid Continuum Mechanics and Atomistic Methods for Simulating Materials Deformation and Failure." MRS Bulletin 32, no. 11 (November 2007): 920–26. http://dx.doi.org/10.1557/mrs2007.189.

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AbstractMany aspects of materials deformation and failure are controlled by atomic-scale phenomena that can be explored using molecular statics and molecular dynamics simulations. However, many of these phenomena involve processes on multiple length scales with the result that full molecular statics/molecular dynamics simulations of the entire system are too large to be tractable. In this review, we discuss hybrid models that perform molecular statics/molecular dynamics simulations “without all the atoms,” aimed at retaining atomistic detail at a fraction of the computational cost. These methods couple a fully atomistic model in critical regions to regions described by less-expensive continuum methods where they can provide an adequate representation of the important physics. We give an overview of the challenges such models present, with a focus on recent work to address issues of dynamics and finite (non-zero) temperature.

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Murăraşu, Vasile, and Vasile Mircea Venghiac. "STM Modelling Methods of Structural Discontinuities." Advanced Engineering Forum 21 (March 2017): 73–77. http://dx.doi.org/10.4028/www.scientific.net/aef.21.73.

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This paper presents Strut and Tie Method (STM) general modelling principles of discontinuity zones of structural members. In order to increase the precision for determining the bearing capacity of reinforced concrete beam ends, the possibility of simultaneously using two complementary versions of STM modelling of these extremities, statically determinate, complying with Eurocode 2, is analysed. To highlight the precision and simplicity of simultaneously applying the two modelling versions a numerical analysis is carried out, where the methodology is presented in detail.

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Sena Rodrigues, S., and E. Pazini Figueiredo. "Módulo de elasticidad estático del hormigón determinado por medio de pruebas de ultrasonido." Materiales de Construcción 53, no. 271-272 (December 30, 2003): 47–58. http://dx.doi.org/10.3989/mc.2003.v53.i271-272.288.

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Szilágyi, Katalin, Adorján Borosnyói, and Kristóf Dobó. "Static indentation hardness testing of concrete: a long established method revived." Epitoanyag - Journal of Silicate Based and Composite Materials 63, no. 1-2. (2011): 2–8. http://dx.doi.org/10.14382/epitoanyag-jsbcm.2011.1.

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Song, Xiao Zhuang, Ming Liang Lu, and Ren Chao Jin. "Practical Calculation Method of Force Method - Layered Force Method." Applied Mechanics and Materials 166-169 (May 2012): 3317–22. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.3317.

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According to the force method of solving of statically indeterminate structure is requirements of the primary structure, the primary structure can be a statically determinate structure also be a statically indeterminate structure. The higher degrees statically indeterminate problems, broken down into multi-layer lower degrees statically indeterminate problems, successive to solve, so time after time using lower degrees or even one degree force method typical equation, the less the solution or do not need to solve simultaneous equations, and solving the higher degrees statically indeterminate structure. On this basis, it can easily statically indeterminate structure with other solution methods in combination, to improve operational efficiency.

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Samotokhin, Alexander Sergeevich. "Review of space vehicle control and guidance methods at atmosphere reentry." Keldysh Institute Preprints, no. 5 (2021): 1–20. http://dx.doi.org/10.20948/prepr-2021-5.

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Review of control methods for statically stable reentry vehicles with low lift-to-drag ratio at returning from the Moon is presented. We are considering algorithms that have been used in Soviet and American Moon programs, as well as advanced algorithms that now are developed. General trends of advanced domestic and foreign methods are determined.

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Essajai, Rida, Younes Benhouria, Abdeljalil Rachadi, Mbarek Qjani, Ahmed Mzerd, and Najem Hassanain. "Shape-dependent structural and magnetic properties of Fe nanoparticles studied through simulation methods." RSC Advances 9, no. 38 (2019): 22057–63. http://dx.doi.org/10.1039/c9ra03047f.

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Thomas, Siby, K. M. Ajith, Sang Uck Lee, and M. C. Valsakumar. "Assessment of the mechanical properties of monolayer graphene using the energy and strain-fluctuation methods." RSC Advances 8, no. 48 (2018): 27283–92. http://dx.doi.org/10.1039/c8ra02967a.

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Voronkov, V. V., and E. N. Voronkova. "Investigation of Static Properties of Strongly Coupled Plasma with Molecular Dynamics Method." International Journal of Mathematics and Physics 6, no. 1 (2015): 48–52. http://dx.doi.org/10.26577/2218-7987-2015-6-1-48-52.

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Singh, Arjun. "A Review on Different Topologies and Control Method of Static Synchronous Compensator." International Journal of Trend in Scientific Research and Development Volume-2, Issue-6 (October 31, 2018): 738–44. http://dx.doi.org/10.31142/ijtsrd18729.

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Signorino, Curtis S. "On Formal Theory and Statistical Methods: A Response to Carrubba, Yuen, and Zorn." Political Analysis 15, no. 4 (2007): 483–501. http://dx.doi.org/10.1093/pan/mpm027.

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The recent article by Carrubba, Yuen, and Zorn (2007) (CYZ) attempts to relate the strategic random utility models in Signorino (1999, 2002, 2003) and in Signorino and Yilmaz (2003) to existing game theory practice and to existing statistical techniques. It contributes to this literature by reminding us that comparative statics analysis can be applied to the equilibria of these models. There are a number of claims in CYZ, however, that require clarification. In particular, the article's primary claim is that comparative statics analysis, in combination with one of three proposed statistical estimators, provides a simpler alternative to methods previously advocated. This claim (or combination of claims) is incorrect. When one examines the procedure CYZ recommends, it is no simpler for substantive researchers than anything previously recommended. Moreover, none of the proposed estimators are new: they are exactly the same methods introduced in Signorino (1999, 2003), in Signorino and Yilmaz (2003), in Signorino, Walker, and Bas (2002), and in Bas, Signorino, and Walker (2007).

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Rębielak, Janusz. "Simple Method of Approximate Calculation of Statically Indeterminate Trusses." International Journal of Computational Methods 16, no. 06 (May 27, 2019): 1840026. http://dx.doi.org/10.1142/s0219876218400261.

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The paper presents principles of the simple method which makes possible approximate calculations of statically indeterminate truss systems in two stages. The two-stage method applies rules of other methods used for calculations of statically determinate trusses. In each of the two stages, there are considered statically determinate trusses, patterns of which are obtained as results of suitable withdrawing of appropriate members from the pattern of the basic statically indeterminate truss. There are presented results of calculations carried out for two cases of load for selected type of plane truss together with comparison of outcomes obtained by means of using appropriate computer software.

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Bolsterli, M. "New methods for static meson potentials." Physical Review D 31, no. 3 (February 1, 1985): 603–10. http://dx.doi.org/10.1103/physrevd.31.603.

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Agrawal, Rakesh, Linda G. Demichiel, and Bruce G. Lindsay. "Static type checking of multi-methods." ACM SIGPLAN Notices 26, no. 11 (November 1991): 113–28. http://dx.doi.org/10.1145/118014.117963.

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Journal articles on the topic 'Statical Methods'

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