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Journal articles on the topic 'Economical estimation'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Lvovs, Aleksandrs, and Anna Mutule. "Estimation of Economical Validity of Usage Remote Operated Disconnectors for 110kV Switchgear Schemes From Optimal Reliability Level Point of View." Scientific Journal of Riga Technical University. Power and Electrical Engineering 28, no. 1 (2011): 31–36. http://dx.doi.org/10.2478/v10144-011-0005-y.

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Estimation of Economical Validity of Usage Remote Operated Disconnectors for 110kV Switchgear Schemes From Optimal Reliability Level Point of ViewThe paper gives results of technical and economical calculations performed for estimation of validity of usage remote operated disconnectors for most commonly used 110kV switchgears from optimal reliability level point of view. Paper contains description of performed technical calculations - calculations of 110kV switchgear schemes' reliability level depending on type of disconnectors installed, and economical calculations, that are related with addi

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Silva, Francisco J. G., Vitor F. C. Sousa, Arnaldo G. Pinto, Luís P. Ferreira, and Teresa Pereira. "Build-Up an Economical Tool for Machining Operations Cost Estimation." Metals 12, no. 7 (2022): 1205. http://dx.doi.org/10.3390/met12071205.

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Currently, there is a lack of affordable and simple tools for the estimation of these costs, especially for machining operations. This is particularly true for manufacturing SMEs, in which the cost estimation of machined parts is usually performed based only on required material for part production, or involves a time-consuming, non-standardized technical analysis. Therefore, a cost estimation tool was developed, based on the calculated machining times and amount of required material, based on the final drawing of the requested workpiece. The tool was developed primarily for milling machines,

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Szczodrak, Maciej, Dariusz Grabowski, and Andrzej Czyżewski. "Employing economical methods for pavement defects estimation." MATEC Web of Conferences 231 (2018): 01016. http://dx.doi.org/10.1051/matecconf/201823101016.

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It is a common practise that measurements of road surface conditions are made using professional and expensive apparatus. Typically a van or a truck equipped with a set of professional sensors i.e. laser scanners of surface is used, therefore the measurement update period is often quite long. Two alternative low-cost methods for estimating road pavement defects and failures were proposed and investigated by the authors. The first one is based on accelerometers application and the other one employs image analysis acquired by cameras installed on a vehicle.

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Al-daoud, Zouhair, and Ali Mohamed Humod. "NEURAL NETWORK APPLICATION FOR BUILDING PROJECTS COST ESTIMATION." Journal of Engineering 17, no. 02 (2011): 331–39. http://dx.doi.org/10.31026/j.eng.2011.02.10.

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This work presents a neural network based cost estimating method, developed for the generationof conceptual cost estimates for total building and electromechanical systems in building project,by using eight parameters available at the early design phase. This model establishes amethodology that can provide an economical and rapid means of cost estimating. Eighteen lighrise building projects, built between 1996 and 2009 in Middle East countries used in this study.The performance of developed cost models was tested against costs incurred by projects not usedin training of those models. Results s

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Simangunsong, Tuani Lidiawati. "Pengelolaan Sampah Kampus untuk Mewujudkan Kampus Berkelanjutan (Sustainability Campus)." PROZIMA (Productivity, Optimization and Manufacturing System Engineering) 1, no. 1 (2017): 59. http://dx.doi.org/10.21070/prozima.v1i1.707.

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The first step that possible for Surabaya University (Ubaya) to realize a sustainability campus was waste production reduction. A research related to solid waste management in Ubaya need to be conducted. The aims of the research were 1. To determinate the economical organic solid waste composition in faculty of engineering 2. Estimating the quantity of economical organic solid waste in faculty of engineering 3. Calculating the greenhouse gas that can be reduced by managing the economical organic solid waste. The scope of calculation was CH4 generation. Research is done by survey of solid waste

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Kharbade, Sukanya, Alpana Asnani, and Kumar Pratyush. "Development and Validation of UV Spectrophotometric Method for Simultaneous Estimation of Metformin HCl and Repaglinide in Pharmaceutical Formulation." Journal of Drug Delivery and Therapeutics 9, no. 3 (2019): 344–47. http://dx.doi.org/10.22270/jddt.v9i3.2676.

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Objective: A new, simple, rapid, accurate and economical method have been developed for the simultaneous estimation of Metformin HCl and Repaglinide in formulation. Method: The absorbances of both the drugs were determined at 238 nm and at 294 nm. The linearity was observed in the concentration range of 2-100 µg/ml and 1-35 µg/ml for Metformin HCl and Repaglinide respectively. The method was validated as per ICH guidelines. Result: The recovery of Metformin and Repaglinide was found in the range of 98.24 ± 0.325 to 100.25 ± 0.756. Conclusion: The proposed method was accurate, reproducible and

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Han, Feng Shan. "Estimation of Strength of Massive Jointed Rock Mass Based on Generalized Hoek-Brown Criterion." Applied Mechanics and Materials 204-208 (October 2012): 259–62. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.259.

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The strength of massive jointed rock mass can be estimated based on Mohr-Coulomb criterion and Hoek-Brown criterion without making expensive experiment of massive jointed rock mass in site. Only using regression analysis, through transformation，Mohr-Coulomb criterion is compared with Hoek-Brown criterion, the strength of jointed rock mass can be economically obtained. In this paper, based on Geological Strength Index GSI and parameter Jv(Joint/m3), the strength of massive jointed rock mass can be obtained. As an example of GSI 24 for massive jointed rock mass is taken, generalized Hoek-Brown c

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Harirchian, Ehsan, Tom Lahmer, Sreekanth Buddhiraju, Kifaytullah Mohammad, and Amir Mosavi. "Earthquake Safety Assessment of Buildings through Rapid Visual Screening." Buildings 10, no. 3 (2020): 51. http://dx.doi.org/10.3390/buildings10030051.

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Earthquake is among the most devastating natural disasters causing severe economical, environmental, and social destruction. Earthquake safety assessment and building hazard monitoring can highly contribute to urban sustainability through identification and insight into optimum materials and structures. While the vulnerability of structures mainly depends on the structural resistance, the safety assessment of buildings can be highly challenging. In this paper, we consider the Rapid Visual Screening (RVS) method, which is a qualitative procedure for estimating structural scores for buildings su

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9

Meidutė, Ieva. "ECONOMICAL EVALUATION OF LOGISTICS CENTRES ESTABLISHMENT." TRANSPORT 22, no. 2 (2007): 111–17. http://dx.doi.org/10.3846/16484142.2007.9638108.

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This paper presents a method for assessing the financial viability of a new Freight village financed by private and public investments. The financial evaluation model constitutes four distinct phases, namely (a) site selection and traffic forecasts, (b) definition of services offered and corresponding dimensions, (c) estimation of investment and operation costs and (d) evaluation of investments. Furthermore, the model produces financing scenarios, based on combinations of public and private funds.

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Kottu, P. K., A. P. Gadad, and P. M. Dandagi. "METHOD DEVELOPMENT AND VALIDATION FOR THE SIMULTANEOUS ESTIMATION OF PIOGLITAZONE AND GLIMEPIRIDE - A UV SPECTROPHOTOMETRIC APPROACH." INDIAN DRUGS 49, no. 11 (2012): 30–35. http://dx.doi.org/10.53879/id.49.11.p0030.

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Objective: The objective of the present work was to design a simple, accurate, economical and reproducible UV spectrophotometric method for the simultaneous estimation of a two-component drug mixture of pioglitazone and glimepiride in the combined tablet dosage form. Methodology: Simultaneous estimation method that involves maximum absorbance (λ max) of Pioglitazone and Glimepiride at 279.0 nm and 238.0 nm, respectively was developed. The proposed method was validated as per ICH guidelines for accuracy, precision, linearity, limit of quantification (LOQ) and limit of detection (LOD). The calib

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Delyukina, K. O. "EDUCATIONAL ACHIEVEMENTS IN STUDENTS 'SELF-ASSESSMENT ECONOMIC SPECIALTIES OF HIGHER EDUCATION INSTITUTIONS." Educational Dimension 20 (June 12, 2008): 142–47. http://dx.doi.org/10.31812/educdim.6575.

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In article the self-estimation of educational achievements of students of economical specialties and factors which influence positive dynamics of the students' educational achievements are considered.

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Lu, Zheng-Gang, Xiao-Jie Sun, and Jun-Qi Yang. "Integrated active control of independently rotating wheels on rail vehicles via observers." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 231, no. 3 (2016): 295–305. http://dx.doi.org/10.1177/0954409716629705.

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As the well-known difficulties are that feedback signals are not easy and economical measurement in practice for active control, this paper presents a study of state estimation for active control of independently rotating wheels (IRW) based on observers. The reduced-order observer and high-order sliding mode observer are used to provide reliable and accurate estimations of the wheel pair state and track curvature using practical sensors. This proposed method uses less sensors than the one of previous studies. Furthermore, lateral accelerator and yaw velocity sensors (gyros) are economical and

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Aher, Kiran B., Girija B. Bhavar, Sanjay R. Chaudhari, and Hemant P. Joshi. "Economical spectrophotometric method for estimation of zaltoprofen in pharmaceutical formulations." Pharmaceutical Methods 2, no. 2 (2011): 152–56. http://dx.doi.org/10.4103/2229-4708.84443.

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Geyda, A. S. "METHODOLOGICAL FOUNDATIONS OF ANALYTICAL ESTIMATION OF ECONOMICAL SYSTEMS DIGITALIZATION PERFORMANCE." Фундаментальные исследования (Fundamental research) 2, no. 11 2018 (2018): 211–15. http://dx.doi.org/10.17513/fr.42325.

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Булхов, Николай, Nikolay Bulkhov, Анна Атрощенко, et al. "INFRASTRUCTURE AS EFFECTIVE FUNCTIONING FACTOR OF ECONOMICAL ACTIVITY SUBJECTS." Bulletin of Bryansk state technical university 2016, no. 1 (2016): 153–58. http://dx.doi.org/10.12737/18307.

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It is wellknown that infrastructure carries out one of the most significant functions – creates general conditions for effectiveness increase in managing subject functioning: affects the improvement of labor conditions in social production, distribution sphere development, is a condition for basic branch development. The paper represents the result of the analysis of home and foreign scientists’ works. The idea of “infrastructure” within the limits of the historical development process of labourmanagement relations is considered, the directions for the infrastructure classification forma

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Domrachev, A. N., Yu M. Govorukhin, D. Yu Paleev, and I. M. Pozdeeva. "ESTIMATION OF ENTRY CONDITION INFLUENCE ON THE SHORT WALL PERFORMANCE." News of the Tula state university. Sciences of Earth 4, no. 1 (2021): 352–56. http://dx.doi.org/10.46689/2218-5194-2021-4-1-352-356.

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In this paper concept description of the operating short wall within the bounds of the justified risk approach is described. Analysis of the results of working process modeling are carried out. Engineering-and-economical performance of longwall panels at various values of probability of entry roof fall is studied.

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Kozulia, T. V. "THE CONCEPT OF INFORMATION-ENTROPY SPACE FOR SYSTEM OBJECTS MODELS BUILDING USED IN SUSTAINABLE DEVELOPMENT TASKS." Radio Electronics, Computer Science, Control, no. 2 (June 28, 2023): 20. http://dx.doi.org/10.15588/1607-3274-2023-2-3.

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Context. Solving tasks of interdisciplinary research deepening during sustainable development problems solutions search for real social-ecological-economical objects based on systemological modelling and introducing information-entropy space of such objects state and functionality determining for making managerial decisions in uncertainty conditions. Objective. Modelling current situation of researched social-ecological-economical object as the cooperative connection «studied system-environment» based on systemological model, which determines object study goal conditions due to discovery

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Suha Sabri Al Samarrai, Khalaf F. Alsamarrai, and Eman Thiab Alsamarrai. "Derivative spectrophotometric for simultaneous estimation of propranolol hydrochloride and hydrochlorothiazide in synthetic mixture." International Journal of Research in Pharmaceutical Sciences 11, no. 1 (2020): 967–73. http://dx.doi.org/10.26452/ijrps.v11i1.1922.

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A simple, sensitive and economical spectrophotometric method for simultaneously estimation of PRO and HCTZ. The first derivative (D1) of the UV spectrum was used in the determination of both drugs in their synthetic mixtures. The Peak to baseline and Peak area at suitable wavelengths were used in the study. The linearity of both drugs was up to a concentration of (5-40 µg/ml). The analytical results of the estimation of PRO were, Rec% 97.179-102.424% and RSD% 0.001-4.996 %. While for estimation of HCTZ were, Rec% between 95.406-103.681% and RSD% 0.001-3.676%. The method was accurate, good repe

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Chay-Canul, Alfonso J., Enrique Camacho-Pérez, Fernando Casanova-Lugo, Omar Rodríguez-Abreo, Mayra Cruz-Fernández, and Juvenal Rodríguez-Reséndiz. "Neural Network-Based Body Weight Prediction in Pelibuey Sheep through Biometric Measurements." Technologies 12, no. 5 (2024): 59. http://dx.doi.org/10.3390/technologies12050059.

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This paper presents an intelligent system for the dynamic estimation of sheep body weight (BW). The methodology used to estimate body weight is based on measuring seven biometric parameters: height at withers, rump height, body length, body diagonal length, total body length, semicircumference of the abdomen, and semicircumference of the girth. A biometric parameter acquisition system was developed using a Kinect as a sensor. The results were contrasted with measurements obtained manually with a flexometer. The comparison gives an average root mean square error (RMSE) of 9.91 and a mean R2 of

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Liu, June, and Yi Zhang. "Additive Hazard Regression for the Analysis of Clustered Survival Data from Case-Cohort Studies." Journal of Mathematics 2020 (July 16, 2020): 1–10. http://dx.doi.org/10.1155/2020/9587870.

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The case-cohort design is an effective and economical method in large cohort studies, especially when the disease rate is low. Case-cohort design in most of the existing literature is mainly used to analyze the univariate failure time data. But in practice, multivariate failure time data are commonly encountered in biomedical research. In this paper, we will propose methods based on estimating equation method for case-cohort designs for clustered survival data. By introducing the event failure rate, three different weight functions are constructed. Then, three estimating equations and paramete

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21

Kita, Hideyuki, Souichirou Kako, and Katsuhiko Kuroda. "An Estimation Method of the Economical Loss Due to Ship Collision." INFRASTRUCTURE PLANNING REVIEW 6 (1988): 137–44. http://dx.doi.org/10.2208/journalip.6.137.

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Mammadova, Ulviyya. "Economical Estimation of Investment for Combined Solar-Wind-Biogas Energy Plant." American Journal of Economics 2, no. 3 (2012): 41–44. http://dx.doi.org/10.5923/j.economics.20120203.03.

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., Ihsan Ullah, M. Kausar Nawaz Shah ., and Hafeez-ur-Rehman . "Estimation of Essential Hybrid Vigor Levels for Economical Hybrid Cotton Production." Asian Journal of Plant Sciences 2, no. 14 (2003): 1004–7. http://dx.doi.org/10.3923/ajps.2003.1004.1007.

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Ustyuzhaninov, V. G. "Economical method for estimation of nonzero coefficients of linear normal regression." Cybernetics and Systems Analysis 29, no. 5 (1994): 716–26. http://dx.doi.org/10.1007/bf01125801.

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Soyher, Marina Ivanovna, O. R. Orlova, M. G. Soyher, L. R. Mingazova, E. M. Soyher, and D. V. Shershneva. "CLINICAL AND ECONOMIC STUDY OF THE EFFECTIVENESS OF BOTULINUM THERAPY IN THE MANAGEMENT OF MYOGENIC DENTAL SYNDROMES." Russian Journal of Dentistry 21, no. 6 (2017): 308–12. http://dx.doi.org/10.18821/1728-2802-2017-21-6-308-312.

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Describes a clinical and economic evaluation of the use of botulinum neuroprotein in comparison with standard therapy (muscle relaxants and splint- frames) for a period of 4 months. Cost-effectiveness analysis (CER) is a frequently used method of pharmacoeconomic analysis. Its major parts are cost analysis, effectiveness analysis and results estimation. Undertaking of each part effects the certainty of the final results. Correct estimation of cost-effectiveness analysis makes it possible to increase health care economical resources distribution effectiveness and shows the most effective and re

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Pradeep, Mishra, and Garg Gopal. "Spectrophotometric estimation of aceclofenac in tablets." Journal of Indian Chemical Society Vol. 83, Jan 2006 (2006): 103–4. https://doi.org/10.5281/zenodo.5816517.

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Department of Pharmaceutical Sciences, Dr. H. S. Gour University, Sagar-470 003, Madhya Pradesh, India <em>E-mail</em> : pmishra51@rediffmail.com Fax : 91-7582-264236 <em>Manuscript received 28 July 2004, revised 7 January 2005, accepted 21 June 2005</em> A new simple, precise, highly specinc and economical spectrophotometric method for the determination of aceclofenac In Its pharmaceutical dosage forms has been developed. The method is based on the formation of a coloured complex of the drug with ferric nitrate In acidic medium, which has absorption maximum at 470 nm. Beer's Jaw is o

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Sharma, Deepak, Mankaran Singh, Dinesh Kumar, and Gurmeet Singh. "Simultaneous Estimation of Ambroxol Hydrochloride and Cetirizine Hydrochloride in Pharmaceutical Tablet Dosage Form by Simultaneous Equation Spectrophotometric Method: A Quality Control Tool for Dissolution Studies." ISRN Analytical Chemistry 2014 (March 4, 2014): 1–6. http://dx.doi.org/10.1155/2014/236570.

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Ambroxol Hydrochloride and Cetirizine Hydrochloride are used for the treatment of bronchitis, cough, and allergy. A simple, economical, accurate, and precise method for simultaneous estimation of Ambroxol Hydrochloride and Cetirizine Hydrochloride in tablet dosage form has been developed. Simultaneous equation method based on measurement of absorbance at two wavelengths, that is, 244 nm and 230 nm, λmax of Ambroxol Hydrochloride and Cetirizine Hydrochloride in pH 6.8 phosphate buffer. Both of these drugs obeyed Beer-Lambert’s law in the concentration range of 2–18 µg/mL for Ambroxol Hydrochlor

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Kehily, Dermot, Barry McAuley, and Alan Hore. "Leveraging Whole Life Cycle Costs When Utilising Building Information Modelling Technologies." International Journal of 3-D Information Modeling 1, no. 4 (2012): 40–49. http://dx.doi.org/10.4018/ij3dim.2012100105.

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Building Information Modelling (BIM) is now being increasingly used as a technology tool to assist design professions in conceiving, designing, constructing, and operating the built environment in many countries. The BIM model provides design professions with the framework to perform exercises in design, programming, cost and value management, and concept energy analysis, in order to achieve the most economical and sustainable building solution. The BIM model though sophisticated is not extensively used to provide estimation software with the data requirements for Life Cycle Costing (LCC), suc

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Li, Jiaojiao, and Linfeng Zhao. "Forecasting Coke's Price by Combination Semi-Parametric Regression Model." Information Resources Management Journal 35, no. 3 (2022): 1–14. http://dx.doi.org/10.4018/irmj.308302.

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According to the characteristics of consumption of coke, the article utilized combination semi-parametric regression method rather than usual regression analysis to forecast the coke's price. Coke' price was divided into two parts. Parameter part was analyzed through error correction model and BP artificial neural network. Nonlinear part was fitted by core function. Nonparametric sector was described by coke yield. The article utilized cross validation method to select optimum bandwidth, choosing the Parabola kernel for the kernel function. The least squares estimation was selected in new mode

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Volkov, Ye I., D. Yu Chashyn, and R. O. Dotsenko. "ORGANIZATIONAL AND ECONOMIC BASES OF CONSTRUCTION AND RECONSTRUCTION OF OBJECTS OF TRANSPORT DESTINATION OF HIGH-SPEED RAILWAY LINES ORGANIZATION." Science and Transport Progress, no. 10 (March 25, 2006): 81–83. http://dx.doi.org/10.15802/stp2006/19463.

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The goal of the work is improvement of methodological and methodical principles of development of the estimation and planning systems, which is modelled with the use of system approach methods, as an integral part of the organizational and economical preparation to the construction of transport facilities and high-speed railway lines.

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Lee, Jung, and Mi Choi. "Effect of Strapdown Integration Order and Sampling Rate on IMU-Based Attitude Estimation Accuracy." Sensors 18, no. 9 (2018): 2775. http://dx.doi.org/10.3390/s18092775.

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This paper deals with the strapdown integration of attitude estimation Kalman filter (KF) based on inertial measurement unit (IMU) signals. In many low-cost wearable IMU applications, a first-order is selected for strapdown integration, which may degrade attitude estimation performance in high-speed angular motions. The purpose of this research is to provide insights into the effect of the strapdown integration order and sampling rate on the attitude estimation accuracy for low-cost IMU applications. Experimental results showed that the effect of integration order was small when the angular ve

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Han, Yuzhe, Qimin Cheng, Wenjin Wu, and Ziyang Huang. "DPF-Nutrition: Food Nutrition Estimation via Depth Prediction and Fusion." Foods 12, no. 23 (2023): 4293. http://dx.doi.org/10.3390/foods12234293.

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A reasonable and balanced diet is essential for maintaining good health. With advancements in deep learning, an automated nutrition estimation method based on food images offers a promising solution for monitoring daily nutritional intake and promoting dietary health. While monocular image-based nutrition estimation is convenient, efficient and economical, the challenge of limited accuracy remains a significant concern. To tackle this issue, we proposed DPF-Nutrition, an end-to-end nutrition estimation method using monocular images. In DPF-Nutrition, we introduced a depth prediction module to

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Al-Momani, Marwan, and Abdaljbbar B. A. Dawod. "Model Selection and Post Selection to Improve the Estimation of the ARCH Model." Journal of Risk and Financial Management 15, no. 4 (2022): 174. http://dx.doi.org/10.3390/jrfm15040174.

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The Autoregressive Conditionally Heteroscedastic (ARCH) model is useful for handling volatilities in economical time series phenomena that ARIMA models are unable to handle. The ARCH model has been adopted in many applications that contain time series data such as financial market prices, options, commodity prices and the oil industry. In this paper, we propose an improved post-selection estimation strategy. We investigated and developed some asymptotic properties of the suggested strategies and compared with a benchmark estimator. Furthermore, we conducted a Monte Carlo simulation study to re

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Schadner, Wolfgang, and Joshua Traut. "Estimating Forward-Looking Stock Correlations from Risk Factors." Mathematics 10, no. 10 (2022): 1649. http://dx.doi.org/10.3390/math10101649.

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This study provides fully mathematically and economically feasible solutions to estimating implied correlation matrices in equity markets. Factor analysis is combined with option data to receive ex ante beliefs for cross-sectional correlations. Necessary conditions for implied correlation matrices to be realistic, both in a mathematical and in an economical sense, are developed. An evaluation of existing models reveals that none can comply with the developed conditions consistently. This study overcomes this pitfall and provides two estimation models via exploiting the underlying factor struct

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Cortés, Camilo, Ana de los Reyes-Guzmán, Davide Scorza, et al. "Inverse Kinematics for Upper Limb Compound Movement Estimation in Exoskeleton-Assisted Rehabilitation." BioMed Research International 2016 (2016): 1–14. http://dx.doi.org/10.1155/2016/2581924.

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Robot-Assisted Rehabilitation (RAR) is relevant for treating patients affected by nervous system injuries (e.g., stroke and spinal cord injury). The accurate estimation of the joint angles of the patient limbs in RAR is critical to assess the patient improvement. The economical prevalent method to estimate the patient posture in Exoskeleton-based RAR is to approximate the limb joint angles with the ones of the Exoskeleton. This approximation is rough since their kinematic structures differ. Motion capture systems (MOCAPs) can improve the estimations, at the expenses of a considerable overload

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Sharma, Desh Deepak, Kajal Singh, and Dileep Kumar. "Costing and Estimation of Earthquake Resisting Structure: A Review." International Journal for Research in Applied Science and Engineering Technology 10, no. 3 (2022): 2062–64. http://dx.doi.org/10.22214/ijraset.2022.41007.

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Abstract: This review report is the analysis of costing and estimation of different earthquake resistance structure and which method will me most economical and efficient method for the construction of any structure which is under the effect or lies in the region of the high seismic zones of the earth . To prevent structure from the earthquake excitation , nowadays several techniques are used such as Dampers , Base Isolation, TMD etc… this paper is a detailed report carried out by the various researchers on various engineering structure by professors from all over the world and the results.

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Pasyah, Annisa Nurul, Syahrudin Syahrudin, and Rafie Rafie. "MATERIAL SUPPLY ESTIMATION USING THE ECONOMIC ORDER QUANTITY (EOQ) METHOD IN THE PUSKOPCUINA BUILDING PHASE I PONTIANAK CONSTRUCTION PROJECT." Jurnal Teknik Sipil 23, no. 2 (2023): 269. http://dx.doi.org/10.26418/jtst.v23i2.62766.

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Seeing the rapid development of the construction world, as part of the Indonesian economy, we need to support the growth of various facilities and infrastructure. In its growth, it must also improve its quality in all respects. In this case, material management plays an essential role in the construction process. The method chosen for this problem is the Economic Order Quantity (EOQ) method. The most economical amount of inventory can be determined by calculating the Economic Order Quantity (EOQ) method. This economical amount of stock can invest embedded in inventory materials, not excessive,

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Chen, Guang Xun, Yan Hui Du, Lei Zhang, and Pan Ke Qin. "Image Processing Based on Improved Signal Estimation Algorithm." Applied Mechanics and Materials 373-375 (August 2013): 694–97. http://dx.doi.org/10.4028/www.scientific.net/amm.373-375.694.

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The commonly used method for high resolution velocity analysis in seismic data processing and interpreting is based on signal estimation algorithm. However, the numerical realization of this method is complicated and time-consuming due to the process of signal-noise separation requiring enormous loop calculations before constructing the energy function. In this paper, we improved the method on the base of multi-trace signal estimation. This improved method made full use of amplitude information that can enhance the anti-noise ability and improve the resolution greatly. Meanwhile, this method h

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Panda, Asutosh, Sudhansu Ranjan Das, and Debabrata Dhupal. "Machinability Investigation of HSLA Steel in Hard Turning with Coated Ceramic Tool: Assessment, Modeling, Optimization and Economic Aspects." Journal of Advanced Manufacturing Systems 18, no. 04 (2019): 625–55. http://dx.doi.org/10.1142/s0219686719500331.

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The present study addresses the machinability investigation in finish dry hard turning of high strength low alloy steel with coated ceramic tool by considering cutting speed, feed and depth of cut as machining parameters. The technological parameters like surface roughness, flank wear, chip morphology and economical feasibility have been considered to investigate the machinability performances. Twenty seven set of trials according to full factorial design of experiments are performed and analysis of variance, multiple regression method, Taguchi method, desirability function approach and finall

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Lv, Zhenyu, Zaijun Wu, Xiaobo Dou, Min Zhou, and Wenqiang Hu. "Distributed Economic Dispatch Scheme for Droop-Based Autonomous DC Microgrid." Energies 13, no. 2 (2020): 404. http://dx.doi.org/10.3390/en13020404.

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In this paper, a distributed economic dispatch scheme considering power limit is proposed to minimize the total active power generation cost in a droop-based autonomous direct current (DC) microgrid. The economical dispatch of the microgrid is realized through a fully distributed hierarchical control. In the tertiary level, an incremental cost consensus-based algorithm embedded into the economical regulator is utilized to search for the optimal solution. In the secondary level, the voltage regulator estimating the average voltage of the DC microgrid is used to generate the voltage correction i

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Romana Mahivish, Manjunath SY, and Hemant Kumar. "UV spectrophotometric method for estimation of zileuton in pharmaceutical formulation." GSC Biological and Pharmaceutical Sciences 13, no. 1 (2020): 212–19. http://dx.doi.org/10.30574/gscbps.2020.13.1.0338.

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A simple, rapid, sensitive and accurate UV-spectrophotometric method has been developed for the estimation of zileuton in pharmaceutical formulation. The method was developed by using 0.1 N Sodium hydroxide as a solvent and absorbance was measured at 230 nm. The drug exhibited the linearity in the concentration range of 1-6 μg/ml with correlation coefficient of 0.9993. The % recovery of the drug was found to be 98.62 % - 100.5 %. The method was validated as per ICH guidelines. The proposed methods are economical and sensitive for the estimation of zileuton in bulk and tablet dosage form.

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Afreen, Manjunath SY, and Hemant Kumar T. "UV spectrophotometric method for estimation of famciclovir in pharmaceutical formulation." GSC Biological and Pharmaceutical Sciences 16, no. 3 (2021): 267–73. http://dx.doi.org/10.30574/gscbps.2021.16.3.0272.

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A simple, rapid, sensitive and accurate UV-spectrophotometric method has been developed for the estimation of Famciclovir in pharmaceutical formulation. The method was developed by using 0.1 N HCl as a solvent and absorbance was measured at 312 nm. The drug exhibited the linearity in the concentration range of 2-12 μg/ml with a correlation coefficient of 0.9978. The % recovery of the drug was found to be 98.62 % - 100.5 %. The method was validated as per ICH guidelines. The proposed method is economical and sensitive for the estimation of Famciclovir in bulk and tablet dosage form.

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Romana, Mahivish, and SY and Hemant Kumar Manjunath. "UV spectrophotometric method for estimation of zileuton in pharmaceutical formulation." GSC Biological and Pharmaceutical Sciences 13, no. 1 (2020): 212–19. https://doi.org/10.5281/zenodo.4264573.

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Abstract:

A simple, rapid, sensitive and accurate UV-spectrophotometric method has been developed for the estimation of zileuton in pharmaceutical formulation. The method was developed by using 0.1 N Sodium hydroxide as a solvent and absorbance was measured at 230 nm. The drug exhibited the linearity in the concentration range of 1-6 μg/ml with correlation coefficient of 0.9993.  The % recovery of the drug was found to be 98.62 % - 100.5 %. The method was validated as per ICH guidelines. The proposed methods are economical and sensitive for the estimation of zileuton in bulk and tablet dosage fo

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Afreen, SY Manjunath, and Kumar T. Hemant. "UV spectrophotometric method for estimation of famciclovir in pharmaceutical formulation." GSC Biological and Pharmaceutical Sciences 16, no. 3 (2021): 267–73. https://doi.org/10.5281/zenodo.5763070.

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Abstract:

A simple, rapid, sensitive and accurate UV-spectrophotometric method has been developed for the estimation of Famciclovir in pharmaceutical formulation. The method was developed by using 0.1 N HCl as a solvent and absorbance was measured at 312 nm. The drug exhibited the linearity in the concentration range of 2-12 μg/ml with a correlation coefficient of 0.9978. The % recovery of the drug was found to be 98.62 % - 100.5 %. The method was validated as per ICH guidelines. The proposed method is economical and sensitive for the estimation of Famciclovir in bulk and tablet dosage form.

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Pyanov, V. S. "Mathematical modeling of grain harvesting combines fleet in a farm." Traktory i sel hozmashiny 79, no. 11 (2012): 30–33. http://dx.doi.org/10.17816/0321-4443-65983.

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A mathematical model of estimation of technical and economical characteristics of work of combine fleet in a farm is stated. Efficiency of large-scale farms and using of high-performance combines are revealed as well as conditions of their optimal using. A nomogram for the calculation of different characteristics of combine fleet in a farm is given.

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Kobernichenko, T. "Recreational potential of the mountain villages Of the Lviv region." Visnyk of the Lviv University. Series Geography, no. 37 (September 9, 2009): 260–67. http://dx.doi.org/10.30970/vgg.2009.37.2433.

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Main features of the recreational potential of the mountain villages in the Lviv region are described in the paper. They are given correspondingly to the nature potential of the territory, ecological conditions, social and economical development, cultural and historical characteristics. Valuable villages with the high level of recreational potential are described. Key words: recreational potential, mountain areas, estimation.

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Rogoža, Artur, Kestutis Čiuprinskas, and Giedrius Šiupšinskas. "THE OPTIMISATION OF ENERGY SYSTEMS BY USING 3E FACTOR: THE CASE STUDIES." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 12, no. 1 (2006): 63–68. http://dx.doi.org/10.3846/13923730.2006.9636374.

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Energy systems should be analysed according to principles of sustainable development. The optimality of technical systems usually is evaluated by only technical and economical criteria. But the estimation of these criteria is not comprehensive enough in the case when system life cycle is much longer than the period of reliable economical prognosis. In this paper the criteria set of energy system evaluation and optimisation was expanded by energy and ecological standpoints and a new multiple criteria indicator (3E factor ‐ Energy, Economy, Ecology) was introduced. The application of this factor

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Wiltshire, G. H., and D. J. Laubscher. "Economical manual estimation of ammonium, nitrate and total inorganic nitrogen in soils." South African Journal of Plant and Soil 6, no. 1 (1989): 53–58. http://dx.doi.org/10.1080/02571862.1989.10634480.

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Durgawale, Pushpa, Sudhir Kanase, Pramod S. Shukla, and Shubhangi Sontakke. "A sensitive and economical modified method for estimation of cerebrospinal fluid proteins." Indian Journal of Clinical Biochemistry 20, no. 2 (2005): 174–77. http://dx.doi.org/10.1007/bf02867422.

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S.M., Ibrahim,, Mohamed, S.M., and Ibrahim, M. A. "Biochemical changes and economical estimation of salted sand smelt fish (Atherina boyeri)." Egyptian Journal of Aquatic Biology and Fisheries 23, no. 2 (2019): 411–19. http://dx.doi.org/10.21608/ejabf.2019.32441.

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