Relevant bibliographies by topics / Ratio type estimator

Contents

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

Academic literature on the topic 'Ratio type estimator'

Author: Grafiati
Published: 8 September 2023
Last updated: 25 July 2025

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Journal articles on the topic "Ratio type estimator"

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YADAV, SUBHASH KUMAR, DIKSHA ARYA, TUBA KOC, and TOLGA ZAMAN. "AN EFFICIENT FAMILY OF RATIO TYPE ESTIMATORS FOR SIMPLE RANDOM SAMPLING." Journal of Science and Arts 24, no. 1 (2024): 69–94. http://dx.doi.org/10.46939/j.sci.arts-24.1-a07.

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The study provides an enhanced estimation of the population mean using known information on an auxiliary variable. An enhanced class of estimators is suggested for the same. The proposed estimator's bias and mean squared error (MSE) are calculated up to the first order of approximation. The optimum values of the characterizing constants are obtained by minimizing the MSE of the proposed estimator. The minimum MSE and the bias values are achieved by optimising the characterizing scalar. The MSE of the proposed estimator has also been compared both conceptually and empirically with the MSEs of c
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Sharma, Rubal, and Sangeeta Malik. "Exponential Type Ratio and Product Estimator of Finite Population Mean in Stratified Sampling." Indian Journal Of Science And Technology 17, no. 40 (2024): 4168–76. http://dx.doi.org/10.17485/ijst/v17i40.2237.

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Objective: This article presents an exponential-type ratio and product estimator of the finite population mean within the stratification framework. A common technique in survey sampling is stratification, which divides the population into similar subsets to improve the estimator's accuracy. Methods: This paper tackles the problem of determining the expression for bias and Mean Square Error (MSE) for the population up to the 1st degree of the approximation when stratification is present. Findings: Here it is obtained the optimum value of the modified estimator. The modified estimator is more ef
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Shaheen, Nazia, Muhammad Nouman Qureshi, Osama Abdulaziz Alamri, and Muhammad Hanif. "Optimized inferences of finite population mean using robust parameters in systematic sampling." PLOS ONE 18, no. 1 (2023): e0278619. http://dx.doi.org/10.1371/journal.pone.0278619.

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In this article, we have proposed a generalized estimator for mean estimation by combining the ratio and regression methods of estimation in the presence of auxiliary information using systematic sampling. We incorporated some robust parameters of the auxiliary variable to obtain precise estimates of the proposed estimator. The mathematical expressions for bias and mean square error of proposed the estimator are derived under large sample approximation. Many other generalized ratio and product-type estimators are obtained from the proposed estimator using different choices of scalar constants.
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Ran, Vijay Kumar Singh, Adebayo Mohammed Abd-Elfatai, Ahmed Audu Ahmed, and Abiola Sanusi Abdulmuahimin. "EFFICIENCY COMPARISON OF RATIO TYPE ESTIMATORS." Continental J. Applied Sciences 8, no. 2 (2013): 34–39. https://doi.org/10.5281/zenodo.2573185.

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The efficiencies of the ratio type estimators have been increased by using linear transformation on auxiliary variable in the literature. Keeping in view, a ratio type estimator of the population mean of variable of interest has been proposed involving unknown weights. Theoretically, its bias and mean square error (mse) have been obtained and compared with other conventional and considered estimators. By this comparison, the conditions that make the proposed estimator more efficient than others have been found. Optimum bias and mean square  error of proposed estimator have  also been
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Muhammad, Isah. "Generalized Ratio-Product cum Regression Variance Estimator in Two-Phase Sampling." Central Bank of Nigeria Journal of Applied Statistics 14, no. 2 (2023): 73–101. http://dx.doi.org/10.33429/cjas.14223.4/5.

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This study develops a flexible and efficient generalized ratio-product cum regression-type estimator of population variance utilizing auxiliary variable in two-phase sampling that incorporates the properties of ratio-type and product-type estimators. The properties of the estimator were derived using first order approximation. The theoretical conditions under which the precision and the flexibility of the estimator is better than some classical estimators are also provided. Empirical evidence from five real datasets suggests that the proposed estimator outperforms the classical variance, ratio
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Rather, Khalid Ul Islam, Eda Gizem Koçyiğit, Ronald Onyango, and Cem Kadilar. "Improved regression in ratio type estimators based on robust M-estimation." PLOS ONE 17, no. 12 (2022): e0278868. http://dx.doi.org/10.1371/journal.pone.0278868.

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In this article, a new robust ratio type estimator using the Uk’s redescending M-estimator is proposed for the estimation of the finite population mean in the simple random sampling (SRS) when there are outliers in the dataset. The mean square error (MSE) equation of the proposed estimator is obtained using the first order of approximation and it has been compared with the traditional ratio-type estimators in the literature, robust regression estimators, and other existing redescending M-estimators. A real-life data and simulation study are used to justify the efficiency of the proposed estima
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Yadav, Pooja, and Mukesh Kumar. "A new Dual to Difference-cum-Ratio Type Exponential Estimator of Population Mean." INTERNATIONAL JOURNAL OF AGRICULTURAL AND STATISTICAL SCIENCES 21, no. 01 (2025): 229. https://doi.org/10.59467/ijass.2025.21.229.

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Auxiliary information is frequently used to improve the efficiency of estimators in sampling theory. With the help of auxiliary information, we can increase the estimator's efficiency and accuracy by incorporating an auxiliary variable. Some of the well-known estimators in this category are ratio estimator, product estimator, regression estimator, exponential ratio estimator and exponential product estimator etc. The major portion of the research in sampling theory revolves around to propose efficient estimators. Dual class of estimators is appropriate and performs better at many occasions. In
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Subramani, J., and G. Kumarapandiyan. "A Class of Modified Ratio Estimators for Estimation of Population Variance." Journal of Applied Mathematics, Statistics and Informatics 11, no. 1 (2015): 91–114. http://dx.doi.org/10.1515/jamsi-2015-0006.

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Abstract In this paper we have proposed a class of modified ratio type variance estimators for estimation of population variance of the study variable using the known parameters of the auxiliary variable. The bias and mean squared error of the proposed estimators are obtained and also derived the conditions for which the proposed estimators perform better than the traditional ratio type variance estimator and existing modified ratio type variance estimators. Further we have compared the proposed estimators with that of the traditional ratio type variance estimator and existing modified ratio t
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Khan, Mursala, and Rajesh Singh. "Estimation of Population Mean in Chain Ratio-Type Estimator under Systematic Sampling." Journal of Probability and Statistics 2015 (2015): 1–5. http://dx.doi.org/10.1155/2015/248374.

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A chain ratio-type estimator is proposed for the estimation of finite population mean under systematic sampling scheme using two auxiliary variables. The mean square error of the proposed estimator is derived up to the first order of approximation and is compared with other relevant existing estimators. To illustrate the performances of the different estimators in comparison with the usual simple estimator, we have taken a real data set from the literature of survey sampling.
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Malik, Sachin, and Rajesh Singh. "Some Improved Multivariate-Ratio-Type Estimators Using Geometric and Harmonic Means in Stratified Random Sampling." ISRN Probability and Statistics 2012 (August 26, 2012): 1–7. http://dx.doi.org/10.5402/2012/509186.

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Auxiliary variable is commonly used in survey sampling to improve the precision of estimates. Whenever there is auxiliary information available, we want to utilize it in the method of estimation to obtain the most efficient estimator. In this paper using multiauxiliary information we have proposed estimators based on geometric and harmonic mean. It was also shown that estimators based on harmonic mean and geometric mean are less biased than Olkin (1958) and Singh (1967) estimators under certain conditions. However, the MSE of Olkin (1958) estimator and geometric and harmonic estimators are sam
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Dissertations / Theses on the topic "Ratio type estimator"

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Tsai, Chia-Ching, and 蔡佳青. "Estimation and Inference of Ratio-Typed Random Variables." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/84851403779213676271.

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碩士<br>國立成功大學<br>統計學系碩博士班<br>92<br>The inference of ratio-typed random variables occurred often in different application situations,for example calibration, critical dosage,relative potency, etc. Estimation of failure time distribution in linear degradation model with random intercept and slope also involves ratio of two random variables. Bernstein model has been established in degradation analysis in estimating a time-to-failure distribution. In this work, we study the approaches of Wald and maximum likelihood, compared with Bernstein distribution, in estimation and making inference of ratio-t
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Al-Saleh, Mohammad A. "Nonlinear Parameter Estimation for Multiple Site-Type Polyolefin Catalysts Using an Integrated Microstructure Deconvolution Methodology." Thesis, 2011. http://hdl.handle.net/10012/5818.

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The microstructure of polyolefins determines their macroscopic properties. Consequently, it is essential to predict how polymerization conditions will affect polyolefin microstructure. The most important microstructural distributions of ethylene/alfa-olefin copolymers made with coordination catalysts are their molecular weight (MWD), chemical composition (CCD), and comonomer sequence length (CSLD). Several mathematical models have been developed to predict these microstructural distributions; reliable techniques to estimate parameters for these models, however, are still poorly developed, espe
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Books on the topic "Ratio type estimator"

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Jolicoeur, Hélène. Estimation de la densité d'ours noirs dans différents types de végétation a l'aide de traceurs radioactifs période 1984-1994. Ministère des Ressources naturelles, de la Faune et des Parcs, 2004.

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Walsh, Bruce, and Michael Lynch. Using Molecular Data to Detect Selection: Signatures from Multiple Historical Events. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198830870.003.0010.

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This chapter examines the search for a pattern of repetitive adaptive substitutions over evolutionary time. In contrast with the previous chapter, only a modest number of tests toward this aim have been proposed. The HKA and McDonald-Kreitman tests contrast the polymorphism to divergence ratio between different genomic classes (such as different genes or silent versus replacement sites within the same gene). These approaches can detect an excess of substitutions, which allows one to estimate the fraction of adaptive sites. This chapter reviews the empirical data on estimates of this fraction a
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Skiba, Grzegorz. Fizjologiczne, żywieniowe i genetyczne uwarunkowania właściwości kości rosnących świń. The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 2020. http://dx.doi.org/10.22358/mono_gs_2020.

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Bones are multifunctional passive organs of movement that supports soft tissue and directly attached muscles. They also protect internal organs and are a reserve of calcium, phosphorus and magnesium. Each bone is covered with periosteum, and the adjacent bone surfaces are covered by articular cartilage. Histologically, the bone is an organ composed of many different tissues. The main component is bone tissue (cortical and spongy) composed of a set of bone cells and intercellular substance (mineral and organic), it also contains fat, hematopoietic (bone marrow) and cartilaginous tissue. Bones a
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Book chapters on the topic "Ratio type estimator"

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Janet, Akingbade Toluwalase, and Balogun Oluwafemi Samson. "Class of Exponential Ratio Type Estimator for Population Mean in Adaptive Cluster Sampling." In Optimal Decision Making in Operations Research and Statistics. CRC Press, 2021. http://dx.doi.org/10.1201/9781003106951-12.

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Zahid, Sara, Asifa Kamal, and Mahnaz Makhdum. "Generalized Dual to Exponential Ratio Type Estimator for the Finite Population Mean in the Presence of Nonresponse." In Promoting Statistical Practice and Collaboration in Developing Countries. Chapman and Hall/CRC, 2022. http://dx.doi.org/10.1201/9781003261148-23.

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Barbuy, B., J. A. De Freitas Pacheco, and T. Idiart. "Estimation of MG/FE Ratio in Early-Type Galaxies." In New Light on Galaxy Evolution. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0229-9_52.

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Subramanian, K. R., E. Ebenezer, and K. H. Raveesha. "Coronal Magnetic Field Estimation Using Type-II Radio Bursts." In Magnetic Coupling between the Interior and Atmosphere of the Sun. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02859-5_62.

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Dravskikh, A. F., and Z. V. Dravskikh. "Estimate of Electron Densities in HII Regions from Observations of Pairs of α-Type Recombination Radio Lines." In Radio Recombination Lines: 25 Years of Investigation. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0625-9_10.

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Tiwari, Garima, and Sanju Saini. "Estimation of Location and Fault Types Detection Using Sequence Current Components in Distribution Cable System Using ANN." In Mobile Radio Communications and 5G Networks. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7018-3_9.

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Eappen, Christin Variathu, Stephen A. Sedory, and Sarjinder Singh. "Ratio and Regression Type Estimators for a New Measure of Coefficient of Dispersion Relative to the Empirical Mode." In Optimal Decision Making in Operations Research and Statistics. CRC Press, 2021. http://dx.doi.org/10.1201/9781003106951-11.

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Cai, Song, and Jiahua Chen. "Empirical Likelihood Inference Under Density Ratio Models Based on Type I Censored Samples: Hypothesis Testing and Quantile Estimation." In Advanced Statistical Methods in Data Science. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-2594-5_7.

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Brazdil, Pavel, Jan N. van Rijn, Carlos Soares, and Joaquin Vanschoren. "Dataset Characteristics (Metafeatures)." In Metalearning. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-67024-5_4.

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SummaryThis chapter discusses dataset characteristics that play a crucial role in many metalearning systems. Typically, they help to restrict the search in a given configuration space. The basic characteristic of the target variable, for instance, determines the choice of the right approach. If it is numeric, it suggests that a suitable regression algorithm should be used, while if it is categorical, a classification algorithm should be used instead. This chapter provides an overview of different types of dataset characteristics, which are sometimes also referred to as metafeatures. These are
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Celik, Gulperi. "Diabetic Nephropathy and Current Approach to Therapy." In Current Perspective on Diabetes Mellitus in Clinical Sciences. Nobel Tip Kitabevleri, 2023. http://dx.doi.org/10.69860/nobel.9786053359111.13.

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Diabetic nephropathy is a common and serious complication of diabetes mellitus (DM), characterized by progressive kidney damage that can lead to end-stage renal disease (ESRD). It primarily affects individuals with both type 1 and type 2 diabetes, and its pathogenesis involves complex interplay of metabolic, hemodynamic, and inflammatory factors. Key mechanisms include hyperglycemia-induced oxidative stress, activation of the renin-angiotensin-aldosterone system (RAAS), and inflammatory pathways. Current therapeutic approaches aim to delay or prevent the progression of diabetic nephropathy. Ti
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Conference papers on the topic "Ratio type estimator"

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Nakhutin, Alexander, Nikita Popov, Vladimir Berdin, Andrey Mironov, Anastasia Uledova, and Daria Kozlova. "NATIONAL GREENHOUSE GAS EMISSION FACTORS AT OIL AND GAS CONDENSATE PRODUCTION AND TREATMENT FACILITIES IN RUSSIAN FEDERATION." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/3.2/s06.46.

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Accurate estimation of greenhouse gases in national inventory reports, submitted by countries every year under the UNFCCC and the Paris Agreement is an important task. Fugitive greenhouse gas emissions from oil production, gathering and treatment is a key category in the Russian national inventory report. Total emissions from this category accounted to more than 30 million tons of CO2 equivalent in 2021. Since in Russian inventory the default IPCC emission factors from these operations are used, in the framework of government project �Russian climate monitoring system� new country-specific CH4
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Rajkumar, S., N. Arunkumar, K. Sedhuraman, and J. Vijaya Raghavan. "Finite Element Analysis by High Torque to Weight Ratio for Cage Type Induction Motor Cost Estimation." In 2024 International Conference on System, Computation, Automation and Networking (ICSCAN). IEEE, 2024. https://doi.org/10.1109/icscan62807.2024.10894405.

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Kee, Youngjung, and Sangjoon Shin. "Structural Dynamic Modeling for Rotating Blades Using Three-Dimensional Finite Elements." In Vertical Flight Society 71st Annual Forum & Technology Display. The Vertical Flight Society, 2015. http://dx.doi.org/10.4050/f-0071-2015-10253.

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This paper deals with the development of an analysis model capable of analyzing the structural dynamic behavior of rotating composite blades. An eighteen node solid-shell finite elements were successfully used for the analysis of blade structures undergoing large deformation. The analysis model includes the effects of transverse shear deformation, Coriolis effect and elastic couplings due to the anisotropic material behavior. Incremental total-Lagrangian approach was adopted to allow estimation on arbitrarily large rotations and displacements. The equations of motion for the finite element mod
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Zhang, Xiaodong, Remus C. Avram, Liang Tang, and Michael J. Roemer. "A Unified Nonlinear Approach to Fault Diagnosis of Aircraft Engines." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95803.

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Many existing aircraft engine diagnostic methods are based on linearized engine models. However, the dynamics of aircraft engines are highly nonlinear and rapidly changing. Future engine health management designs will benefit from new methods that are directly based on intrinsic nonlinearities of the engine dynamics. In this paper, a fault detection and isolation (FDI) method is developed for aircraft engines by utilizing nonlinear adaptive estimation and nonlinear observer techniques. Engine sensor faults, actuator faults and component faults are considered under one unified nonlinear framewo
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Alam, Md Jahangir, Douglas O'Shaughnessy, and Sid-Ahmed Selouani. "Speech enhancement employing a sigmoid -type gain function with a modified a priori signal-to-noise ratio (SNR) estimator." In 2008 Canadian Conference on Electrical and Computer Engineering - CCECE. IEEE, 2008. http://dx.doi.org/10.1109/ccece.2008.4564612.

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Li, Bo, TianLi Gu, Shaoyi Bei, et al. "Tyre Slip Ratio Estimation Using Intelligent Tyre Concept." In WCX SAE World Congress Experience. SAE International, 2024. http://dx.doi.org/10.4271/2024-01-2299.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;Intelligent tyres can offer crucial insights into tyre dynamics, serving as a fundamental information source for vehicle state estimation and thereby enabling vehicular safety control. Among the numerous tyre parameters, slip ratio stands out as a direct influencer of vehicle motion characteristics. Accurate estimation of tyre slip ratio is essential for vehicle safety. Firstly, an analysis of the fundamental composition of tyres was conducted, and appropriate simplifications were applied to the tyre structure. Additiona
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Koito, Yasushi, Toshio Tomimura, and Shuichi Torii. "Theoretical Investigation on Effective Thermal Conductivity of a Disk-Shaped Composite System." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22870.

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This paper addresses the methodology to estimate the effective thermal conductivity of the wiring board, where the metal wiring network is very complicated and then the thermal conductivity of the metal wiring is more than 1000 times higher than that of the resign board. Based on the concept of analogy between the electric and the thermal resistance network, two types of estimation equations are derived by dividing the composite system parallel or perpendicular to the heated/cooled surface. When the ratio of higher to lower thermal conductivities is less than 10, the estimated values by these
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Sharma, Sumiti, and Sangeeta Malik. "Some improved quadratic ratio and product type linear regression estimators." In PROCEEDING OF INTERNATIONAL CONFERENCE ON FRONTIERS OF SCIENCE AND TECHNOLOGY 2021. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0115261.

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Bai, Yong-Qiang, Tong Wang, Lianghai Lv, Liang Sun, and Jian Shuai. "Elastic-Plastic Fracture Mechanics Method for Poor Penetration Crack in Welded Piping Branch Junction." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61319.

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This paper provides two types of engineering J estimation equations for welded piping branch junctions with poor penetration crack under internal pressure. The first type is the so-called GE/EPRI type J estimation equation based on Ramberg-Osgood (R-O) materials. Based on detailed 3-D FE results using deformation plasticity, plastic influence functions for fully plastic J components are tabulated for practical ranges of the inner radius of brace to the inner radius of chord ratio, the thickness of brace to the thickness of chord, the thickness of chord to the inner radius of chord ratio, the c
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Ma, Juntao, Lin Liang, Xi Yan, et al. "Pore System Characterization of Carbonate Rocks: A Multiphysics Approach Through Acoustic and NMR Measurements." In 2023 SPWLA 64th Annual Symposium. Society of Petrophysicists and Well Log Analysts, 2023. http://dx.doi.org/10.30632/spwla-2023-0051.

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Pore system characterization and, thus, permeability estimation in carbonate rocks have always been challenging due to the complexity of the carbonate rocks. Both acoustic and nuclear magnetic resonance (NMR) measurements have been employed individually to characterize different aspects of pore structure. In this study, we combine acoustic and NMR measurements for an improved, quantitative pore structure characterization of carbonate rocks. We first calculate the volume fractions of crack pores (microcracks and microfractures with a low aspect ratio), reference pores (interparticle pores with
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Reports on the topic "Ratio type estimator"

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Amengual, Dante, Xinyue Bei, Marine Carrasco, and Enrique Sentana. Score-type tests for normal mixtures. CIRANO, 2023. http://dx.doi.org/10.54932/uxsg1990.

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Testing normality against discrete normal mixtures is complex because some parameters turn increasingly underidentified along alternative ways of approaching the null, others are inequality constrained, and several higher-order derivatives become identically 0. These problems make the maximum of the alternative model log-likelihood function numerically unreliable. We propose score-type tests asymptotically equivalent to the likelihood ratio as the largest of two simple intuitive statistics that only require estimation under the null. One novelty of our approach is that we treat symmetrically b
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Yu, Yipin, Duoting Tan, Dan Sheng, Liqin Zhong, Zhixi Hu, and Hao Liang. Neutrophil-to-lymphocyte ratio as a prognostic predictor for heart failure patients: a systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.3.0062.

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Review question / Objective: This study aimed to evaluate the relationship between NLR and in-hospital or long-term prognosis of patients with heart failure by meta-analysis. Eligibility criteria: Inclusion criteria: (1) Patients with heart failure who underwent NLR measurement ;the study types were prospective cohort study or retrospective cohort study; and (3) risk estimates of association between NLR levels and heart failure related events occurring during hospital or follow-up were studied experimentally. Case reports, reviews, animal studies, conference proceedings, letters to editors, ab
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DiDomizio, Matthew, and Jonathan Butta. Measurement of Heat Transfer and Fire Damage Patterns on Walls for Fire Model Validation. UL Research Institutes, 2024. http://dx.doi.org/10.54206/102376/hnkr9109.

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Fire models are presently employed by fire investigators to make predictions of fire dynamics within structures. Predictions include the evolution of gas temperatures and velocities, smoke movement, fire growth and spread, and thermal exposures to surrounding objects, such as walls. Heat flux varies spatially over exposed walls based on the complex thermal interactions within the fire environment, and is the driving factor for thermally induced fire damage. A fire model predicts the temperature and heat transfer through walls based on field predictions, such as radiative and convective heat fl
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Zhang, Dan, Jingting Liu, Mengxia zheng, Chunyan Meng, and Jianhua Liao. Prognostic and Clinicopathological significance of CD155 Expression in Cancer Patients: A Meta-Analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.9.0087.

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Review question / Objective: The present study aimed to comprehensively explore the relationship between CD155 expression and clinical characteristics and prognosis of cancer patients. The study was based on comprehensive search of relevant literature. In particular, the study attempted to define the role of CD155 in various cancer types. Eligibility criteria: The pre-established inclusion criteria were as follows: (1) all subjects were cancer patients who received standard treatment; (2) The expression of CD155 in the cancer patients was well-examined, and all patients were assigned into two
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Willson. L51756 State of the Art Intelligent Control for Large Engines. Pipeline Research Council International, Inc. (PRCI), 1996. http://dx.doi.org/10.55274/r0010423.

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Computers have become a vital part of the control of pipeline compressors and compressor stations. For many tasks, computers have helped to improve accuracy, reliability, and safety, and have reduced operating costs. Computers excel at repetitive, precise tasks that humans perform poorly - calculation, measurement, statistical analysis, control, etc. Computers are used to perform these type of precise tasks at compressor stations: engine / turbine speed control, ignition control, horsepower estimation, or control of complicated sequences of events during startup and/or shutdown. For other task
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Fourqurean, James, Johannes Krause, Juan González-Corredor, Tom Frankovich, and Justin Campbell. Caricas Partner's Practical Field and Laboratory Guide. Florida International University, 2024. http://dx.doi.org/10.25148/merc_fac.2024.32.

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This field and laboratory guide describes the field and laboratory methods used to characterize blue carbon in seagrass meadows. It was developed for the Caribbean Carbon Accounting in Seagrass project and describes the protocols and methods used by the network. In brief, at each project site, seagrass abundance, species composition, canopy height, and sediment type were assessed at sixteen 0.25 m2 quadrats placed at random locations within the site. Eight 20 cm diameter cores were taken to assess seagrass biomass, shoot density, and to provide the material for assessing seagrass carbon and nu
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Willits, Daniel H., Meir Teitel, Josef Tanny, Mary M. Peet, Shabtai Cohen, and Eli Matan. Comparing the performance of naturally ventilated and fan-ventilated greenhouses. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7586542.bard.

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The objectives of this project were to predict the performance of naturally and fan-ventilated greenhouses as a function of climate, type of crop, evaporative cooling and greenhouse size, and to estimate the effects of the two cooling systems on yield, quality and disease development in the different crops under study. Background In the competitive field of greenhouse cultivation, growers and designers in both the US and Israel are repeatedly forced to choose between naturally ventilated (NV) and fan ventilated (FV) cooling systems as they expand their ranges in an effort to remain profitable.
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Gunay, Selim, Fan Hu, Khalid Mosalam, et al. Blind Prediction of Shaking Table Tests of a New Bridge Bent Design. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2020. http://dx.doi.org/10.55461/svks9397.

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Considering the importance of the transportation network and bridge structures, the associated seismic design philosophy is shifting from the basic collapse prevention objective to maintaining functionality on the community scale in the aftermath of moderate to strong earthquakes (i.e., resiliency). In addition to performance, the associated construction philosophy is also being modernized, with the utilization of accelerated bridge construction (ABC) techniques to reduce impacts of construction work on traffic, society, economy, and on-site safety during construction. Recent years have seen s
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Lacerda Silva, P., G. R. Chalmers, A. M. M. Bustin, and R. M. Bustin. Gas geochemistry and the origins of H2S in the Montney Formation. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329794.

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The geology of the Montney Formation and the geochemistry of its produced fluids, including nonhydrocarbon gases such as hydrogen sulfide were investigated for both Alberta and BC play areas. Key parameters for understanding a complex petroleum system like the Montney play include changes in thickness, depth of burial, mass balance calculations, timing and magnitudes of paleotemperature exposure, as well as kerogen concentration and types to determine the distribution of hydrocarbon composition, H2S concentrations and CO2 concentrations. Results show that there is first-, second- and third- or
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Tanny, Josef, Gabriel Katul, Shabtai Cohen, and Meir Teitel. Micrometeorological methods for inferring whole canopy evapotranspiration in large agricultural structures: measurements and modeling. United States Department of Agriculture, 2015. http://dx.doi.org/10.32747/2015.7594402.bard.

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Original objectives and revisions The original objectives as stated in the approved proposal were: (1) To establish guidelines for the use of micrometeorological techniques as accurate, reliable and low-cost tools for continuous monitoring of whole canopy ET of common crops grown in large agricultural structures. (2) To adapt existing methods for protected cultivation environments. (3) To combine previously derived theoretical models of air flow and scalar fluxes in large agricultural structures (an outcome of our previous BARD project) with ET data derived from application of turbulent transp
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