Efficiency Criteria Research Articles

Whether Wrongful Death from Law and Economics View Could Satisfy Pareto Efficiency Criterion under US Law

The development of economics has had a significant impact on the research of legal scholars, as analyzing legal principles from an economic perspective has become increasingly prevalent. It also has particularly influenced the field of tort law. Supporters of the economic analysis of tort law argue that it should be as efficient as possible in balancing the rights and duties between tortfeasors and victims. This essay provides a brief discussion of wrongful death from a legal and economic perspective. It begins with an introduction to traditional tort law and its elements, followed by an examination of the economic theory regarding compensation for wrongful death. The essay then explores whether the wrongful death rule could satisfy the Pareto Efficiency Criterion, which is a fundamental concept in welfare economics that evaluates the desirability of a change in allocation based on the principle that no individual should be made worse off. By applying an economic lens to the analysis of wrongful death cases, this essay aims to contribute to the ongoing dialogue between law and economics and to shed light on how economic principles can inform and potentially enhance the understanding and application of tort law.

Modern Experience of Pharmacotherapeutic Use and Effectiveness of Endolumbal Administration of Glucocorticoids in Progressive Types of Course for Multiple Sclerosis

Effective pharmacotherapy of low-bondly progredient forms of the multiple sclerosis is a difficult task that requires the search for new and improving existing methods of treatment. The author set the task to the optimize the treatment of progredient forms of multiple sclerosis using the method of endolumbal introduction of glucocorticoids and to evaluate its efficiency. The results of treatment of 76 patients with poor curable progresses of multiple sclerosis by intratracal introduction of glucocorticoids (dexamethasone) are presented in the study. The advantages of method, methodic of introduction, the patient`s selection parameters were given. The efficiency criterions of intration of glucocorticoids were defined, including the neurological deficiency regress, stabilization and the delay of multiple sclerosis progressing. Integral assessment of efficiency was made as 4 gradations: “good rate”, “low” and “absence of effect”. The positive dynamics of neurological state was registered predominantly on spastic-paretic syndrome with presence of several active foci with contrast enhancement. The sphincter infringements and brain stem symptomatic were observed as rarely reversible, extremely rarely - cerebellar symptom complex. As the results of the treatment (the term of the observation – 6 months and more) 80.2% of multiple sclerosis patrols marked the efficiency as "good" and "moderate". The obtained data indicated the reasonability of the proposed method of treatment for patrols with saversive counses of multiple sclerosis, occurring inly with spinal symptomatic.

Determining the efficiency of techniques for optimizing the number of tags in modern human-machine interfaces under conditions of limited resources

The object of this study is modern Human-Machine Interfaces (HMI) and SCADA systems in the industry. The subject of research is techniques for optimizing the number of tags (variables) in the SCADA/HMI environment to enhance resource utilization efficiency. One of the challenges in creating SCADA/HMI-based solutions can be the number of tags (variables) in the runtime environment. A large number of tags can lead to a problem of limited available resources. The technique presented here allow for the optimization of the number of tags used in Human-Machine Interface systems built with SCADA software and operator panels in combination with Programmable Logic Controllers (PLCs). An evaluation of the efficiency of techniques for reducing the number of HMI tags was conducted on an experimental configuration consisting of objects such as discrete input/output, analog input/output, actuators such as valves with discrete/analog control, and drives with frequency converters. The optimization coefficient, defined as the ratio of the number of input/output tags used directly to the number of tags after applying the optimization principle, was used as the efficiency criterion. Depending on the techniques and their combinations, the criterion values reached orders of 4, 10, and in one case even more than 100. These values are explained by the application of multiplexing approaches and various packing techniques. The advantages and disadvantages of the reported techniques, as well as their application limitations, have been identified. Some techniques are suitable only for specific tasks. These techniques could be applied in practical implementation when designing modern high-efficiency Human-Machine Interfaces under conditions of limited resources.

АЛГОРИТМ ЭКСПЕРСС-ОЦЕНКИ ВОЗДЕЙСТВИЯ НА ПОЧВУ ХОДОВЫХ СИСТЕМ ПРИЦЕПНЫХ ТРАНСПОРТНЫХ СРЕДСТВ

A reliable assessment of the level of impact on the soil from the propulsors of mobile agricultural machinery is possible only with an accurate measurement of the contour area of the contact surface of the tire with the support base. This indicator underlies all standard methods for determining the maximum normal pressure, maximum stresses and other indicators in the “wheel-soil” system. A simplified algorithm for determining the area of the contact patch of tires, which can be used both when assessing the level of pressure on the soil of existing trailed agricultural vehicles and newly developed ones, was proposed by the authors. In the first case, it is enough to measure the dimensional parameters of the tire mounted on the trailer: diameter, profile width, the amount of deformation under the influence of axial vertical load. In the second case, it is enough to take this data from catalogs with the technical characteristics of tires from specific manufacturers. The mathematical model used to determine the crosssectional area of the cylinder by the plane of the supporting surface located from the edge of the wheel at a distance equal to the tire deflection is the basis of the algorithm. The proposed methodology was tested by comparing the calculation results with the results of full-scale tests of 22 samples of agricultural tires installed on various types of transport and tractor units: carts, trailers, transfer bins. As a result of the research, a fairly high value of the modeling efficiency criterion was obtained (0.989), indicating a high level of convergence between the predicted (calculated) and observed (measured) values of the contact areas of the studied tire samples. Ease of use, versatility and accuracy sufficient for engineering calculations make the proposed algorithm convenient for wide practical use.

ANALYSIS OF THE FINANCIAL MANAGEMENT PERFORMANCE OF TATAH MOSQUE VILLAGE, BARITO KUALA REGENCY

The Tatah Mesjid Village Government is obliged to carry out reporting and accountability for the implementation of the Village APBD. The Budget Realization Report shows that the financial performance of the Tatah Mesjid Village Government, Barito Kuala Regency is running well, but the success of the budget performance that has been achieved does not necessarily fully implement the value for money principle (economic, efficient and effective) so it is necessary to measure the achievement of the Village APBD performance. This research aims to measure the financial management performance of the Tatah Mesjid Village Government, Barito Kuala Regency using the value for money concept for the 2020-2022 fiscal year. The research method uses quantitative with a descriptive approach. Data was analyzed using the concept of value for money to measure economic ratios, efficiency and effectiveness. The research results show that the financial performance of the Tatah Mesjid Village government during 2020-2022 for economic measurements consistently shows results >100% with economic criteria. The efficiency measurement for the 2021 fiscal year of 97.07% is included in the efficient criteria because it is between 90-99%, however in 2020 and 2022 the results show inefficiency because the ratio is more than 100%. Measuring the effectiveness of village funds and allocation of village funds shows effective results. However, tax and levy revenue sharing shows less effective results because the ratio is <65%.

C∗\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$C^*$$\\end{document}-Algebras Associated to Transfer Operators for Countable-to-One Maps

Our initial data is a transfer operator L for a continuous, countable-to-one map φ:Δ→X\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$\\varphi :\\Delta \\rightarrow X$$\\end{document} defined on an open subset of a locally compact Hausdorff space X. Then L may be identified with a ‘potential’, i.e. a map ϱ:Δ→X\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$\\varrho :\\Delta \\rightarrow X$$\\end{document} that need not be continuous unless φ\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$\\varphi $$\\end{document} is a local homeomorphism. We define the crossed product C0(X)⋊L\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$C_0(X)\\rtimes L$$\\end{document} as a universal C∗\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$C^*$$\\end{document}-algebra with explicit generators and relations, and give an explicit faithful representation of C0(X)⋊L\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$C_0(X)\\rtimes L$$\\end{document} under which it is generated by weighted composition operators. We explain its relationship with Exel–Royer’s crossed products, quiver C∗\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$C^*$$\\end{document}-algebras of Muhly and Tomforde, C∗\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$C^*$$\\end{document}-algebras associated to complex or self-similar dynamics by Kajiwara and Watatani, and groupoid C∗\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$C^*$$\\end{document}-algebras associated to Deaconu–Renault groupoids. We describe spectra of core subalgebras of C0(X)⋊L\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$C_0(X)\\rtimes L$$\\end{document}, prove uniqueness theorems for C0(X)⋊L\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$C_0(X)\\rtimes L$$\\end{document} and characterize simplicity of C0(X)⋊L\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$C_0(X)\\rtimes L$$\\end{document}. We give efficient criteria for C0(X)⋊L\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$C_0(X)\\rtimes L$$\\end{document} to be purely infinite simple and in particular a Kirchberg algebra.

Sufficient Efficiency Criteria for New Classes of Non-Convex Optimization Models

Sufficient Efficiency Criteria for New Classes of Non-Convex Optimization Models

New Modification of Ranked Set Sampling for Estimating Population Mean: Neutrosophic Median Ranked Set Sampling with an Application to Demographic Data

The study addressed the limitations of classical statistical methods when dealing with ambiguous data, emphasizing the importance of adopting neutrosophic statistics as a more effective alternative. Classical methods falter in managing uncertainty inherent in such data, necessitating a shift towards methodologies like neutrosophic statistics. To address this gap, the research introduced a novel sampling approach called “neutrosophic median ranked set sampling” and incorporated neutrosophic estimators tailored for estimating the population mean in the presence of ambiguity. This modification aims to address the inherent challenges associated with estimating the population mean when dealing with neutrosophic data. The methods employed involved modifying traditional ranked set sampling techniques to accommodate neutrosophic data characteristics. Additionally, neutrosophic estimators were developed to leverage auxiliary information within the framework of median-ranked set sampling, enhancing the accuracy of population mean estimation under uncertain conditions. The methods employed involved modifying traditional ranked set sampling techniques to accommodate neutrosophic data characteristics. Bias and mean squared error equations for the suggested estimators were provided, offering insights into their theoretical underpinnings. To illustrate the effectiveness and practical applications of the proposed methodology and estimators, a numerical demonstration and simulation study have been conducted using the R programming language. The key results highlighted the superior performance of the proposed estimators compared to existing alternatives, as demonstrated through comprehensive evaluations based on mean squared error and percentage relative efficiency criteria. The conclusions drawn underscored the effectiveness of the neutrosophic median ranked set sampling approach and suggested estimators in estimating the population mean under conditions of uncertainty, particularly when utilizing neutrosophic auxiliary information and validated real-life applicability. The methodology and estimators presented in the study were shown to yield interval-based results, providing a more realistic representation of uncertainty associated with population parameters. This interval estimation, coupled with minimum mean squared error considerations, enhanced the efficacy of the estimators in determining population mean values. The novelty of the work lies in its introduction of a tailored sampling approach and estimators designed specifically for neutrosophic data, filling a significant gap in the literature. By extending classical statistics to accommodate ambiguity, the study offers a substantial advancement in statistical methodology, particularly in domains where precise data is scarce and uncertainty is prevalent. Furthermore, the empirical validation through numerical demonstrations and simulation studies using the R programming language adds robustness to the proposed methodology and contributes to its practical applicability.

Stock Making Investment Decisions Using the Capital Asset Pricing Model (CAPM) Analysis of the Business Index-27 on the Indonesian Stock Exchange

The purpose of this study is to measure the ability of the Capital Asset Princing Model (CPAM) in analyzing investment decision making by predicting the risk and return that will be obtained by investors and helping investors in choosing efficient and inefficient stocks. CAPM is a measuring tool that can be used to determine the level of risk and return obtained and evaluate the rate of return on investment. The purposive sampling technique is used in selecting samples to be used in the study, namely companies listed on the Indonesia Stock Exchange and their shares are consistently included in the Bisnis-27 stock index. The stock criteria used in selecting efficient stocks, namely when individual return results exceed the expected return. The results of this study indicate that there are 8 stocks that meet the efficiency criteria, namely ADRP, AKRA, AMRT, BBNI, BMRI, INKP, JSMR, and PGAS with individual returns results exceed the expected returns. In investment decisions, stocks that are included in these efficient stocks are the priority stocks that investors should buy. Based on the analysis, there is a non-linear relationship between systematic risk and expected stock returns, making an important contribution to investment decision making in the Indonesian stock market.

EVALUATION OF THE EFFICACY OF CHLORINE-CONTAINING COMMERCIAL PRODUCTS FOR WATER DECONTAMINATION AGAINST COLIFORM BACTERIA

Problem. Water is a key factor in the transmission of intestinal infections. During war conflicts, the risk of outbreaks of such infections increases due to infrastructure damage, the inaccessibility of central water supplies, and the impossibility of governmental institutions to control drinking water quality. In such situations, the need arises for household water treatment methods. Aim. To evaluate the efficacy of seven commercial water treatment products available in the Ukrainian market against enteric bacteria and to compare their efficacy. Methods. The activity of water purification products against the model microorganism Escherichia coli ATCC25922 was evaluated using serial dilution methods followed by viable count assessment. The main results: High efficacy of the studied preparations against enteric bacteria was detected. In each test, a significant decrease in the initial titer of Escherichia coli from 1,2·10 6 CFU/cm 3 to ˂ 10 CFU/cm 3 was observed after the exposure time declared by the manufacturer. Conclusions: The studied water treatment products from Ukrainian and foreign manufacturers were effective against enteric bacteria and met the WHO criteria for efficiency, regardless of the nature of the active compound (chlorine dioxide, sodium dichloroisocyanurate, or polyhexamethylene guanidine hydrochloride).

Impact of the Different Molecular Weights of Polyethylene Glycol (PEG) Coating Agents on the Magnetic Targeting Characteristics of Functionalized Magnetoresponsive Nanoclusters

In this article, we investigated the influence of molecular weight (Mw) on particle deposition efficiency after PEG-functionalized (polyethylene glycol-PEG) magnetoresponsive magnetic cluster targeting. In this work, the clusters were obtained by the solvothermal polyol method using polyethylene glycol (PEG) as a coating agent. So, we investigated three kinds of magnetoresponsive clusters: MNC-2000, MNC-6000, and MNC-10,000. These clusters were coated with PEG, and had molecular weights (Mw) of 2000 Da, 6000 Da, and 10,000 Da, respectively. The authors propose that the key to achieving maximum efficiency in targeted drug delivery is to deposit a thin, uniform layer of medication that covers the vascular wall in the area of interest. We defined a set of efficiency criteria to focus on the most essential characteristics of the targeting results. These are the obstruction degree, which measures the level of vessel obstruction; the magnet coverage degree, which evaluates the quality of particle deposition along the vessel wall; and the proximal deposition degree, which assesses the effect of pulsatile flow on deposition length. We performed several tests to determine how molecular weight affected these efficiency parameters. These tests examined (a) the effect of the injected cluster quantities, (b) the effect of the magnet distance, and (c) the effect of the injection period. Our findings indicate that an increase in PEG’s molar weight significantly impacts magnetic particle targeting efficiency.

Post Covid Effect on the Nutritional Status, Academic Interest and Psycho-Social Behaviors among College Students

The COVID-19 epidemic has eclipsed global development activities. Global political, financial, and technical resources have been mobilised to combat the COVID-19 pandemic. The pandemic’s impact will be long-lasting, affecting all aspects of human life and impeding all developmental endeavours, including the ambitious and aspirational Sustainable Development Goals. Good nutrition is an essential criterion for adolescent health, productivity, and functional efficiency. The present study was to investigate the impact of covid 19 to young people’s health and nutritional state, academic interest, and psychosocial behaviour. This is a cross-sectional study in which 100 adolescents aged 18 to 21 years were assessed for anthropometry, nutritional profile, and perceived stress using relevant scales. The findings demonstrated an association between good nutritional status and psychosocial behaviour in adolescents. In addition, the COVID-19 pandemic has had a significant impact on adolescents’ dietary status, academic interest, and psychosocial behaviour. This study provides novel ideas for future policies and intervention programmes.

Enhanced methodology to assess business research community serving extended realities movement

Virtual, augmented, and mixed reality, known collectively as extended realities (XR), have the potential to transform businesses but research service is required. This report explores the productivity of XR-related in business research. This paper has enhanced the traditional bibliometric approach by integrating it with a mathematical supplement, Expedited Analytical Hierarchy Process (EAHP). This enhanced methodology allows for a nuanced evaluation of research service productivity and offers direction for future research efforts. Productivity is evaluated in terms of the effectiveness and efficiency of research results, so creating a bibliometrics index for commenting on research effectiveness and evaluating research efficiency criteria from a publication standpoint, the work added to the field. Analysis of the collected scientometrics data show the field is not yet optimally productive, leading to a call for increased focus on future research. Besides, the utilization of EAHP's systematics way to convert the data into a future research direction, with mixed reality found to require more attention than other XRs. A complementary literature analysis step highlights the practical application of XRs in business and the growing importance of the XR-owned worlds, metaverses. As a result, this study found evidence to argue that the services provided by the business research community are not optimally productive when dealing with the XR movement, and it calls for more attention to support businesses.

3D engineered scaffold for large-scale Vigil immunotherapy production

Previously, we reported successful cellular expansion of a murine colorectal carcinoma cell line (CT-26) using a three-dimensional (3D) engineered extracellular matrix (EECM) fibrillar scaffold structure. CCL-247 were grown over a limited time period of 8 days on 3D EECM or tissue culture polystyrene (TCPS). Cells were then assayed for growth, electroporation efficiency and Vigil manufacturing release criteria. Using EECM scaffolds, we report an expansion of CCL-247 (HCT116), a colorectal carcinoma cell line, from a starting concentration of 2.45 × 105 cells to 1.9 × 106 cells per scaffold. Following expansion, 3D EECM-derived cells were assessed based on clinical release criteria of the Vigil manufacturing process utilized for Phase IIb trial operation with the FDA. 3D EECM-derived cells passed all Vigil manufacturing release criteria including cytokine expression. Here, we demonstrate successful Vigil product manufacture achieving the specifications necessary for the clinical trial product release of Vigil treatment. Our results confirm that 3D EECM can be utilized for the expansion of human cancer cell CCL-247, justifying further clinical development involving human tissue sample manufacturing including core needle biopsy and minimal ascites samples.

Determinant Analysis and Policy Recommendations for Stunting Prevention in West Sulawesi Province

The aim of this research is to analyze root causes and policy recommendations of stunting in West Sulawesi. Stunting is growth failure in children due to inadequate nutrition. Until 2022, West Sulawesi still holds the second highest stunting prevalence rate in Indonesia at 35%. The high rate of stunting becomes a reason to find solutions towards this problem. This research used qualitative research with classification analysis to determine formal problems and used the non-dominated alternative method with effective, efficient and responsiveness criteria to determine policy alternatives. Data sources are secondary data obtained from journals, reports, local government documents and various online information related to the research topic. The results found the high stunting in West Sulawesi caused by various factors including health, economy, education and culture. It was found that cultural factors such as early marriage, contribute to the high stunting prevalence in West Sulawesi. Policy recommendations chosen are microfinance and training programs to increase the income of adolescent girls. This policy aimed at adolescent girls who are vulnerable to early marriage. The hope is through this policy, adolescents are well-informed about the negative impacts of early marriage and by doing so, they would be able to increase their income.

Enhanced direct and synthetic estimators for domain mean with simulation and applications

This article considers the issue of domain mean estimation utilizing bivariate auxiliary information based enhanced direct and synthetic logarithmic type estimators under simple random sampling (SRS). The expressions of mean square error (MSE) of the proposed estimators are provided to the 1st order approximation. The efficiency criteria are derived to exhibit the dominance of the proposed estimators. To exemplify the theoretical results, a simulation study is conducted on a hypothetically drawn trivariate normal population from R programming language. Some applications of the suggested methods are also provided by analyzing the actual data from the municipalities of Sweden and acreage of paddy crop in the Mohanlal Ganj tehsil of the Indian state of Uttar Pradesh. The findings of the simulation and real data application exhibit that the proposed direct and synthetic logarithmic estimators dominate the conventional direct and synthetic mean, ratio, and logarithmic estimators in terms of least MSE and highest percent relative efficiency.

Optimal intensity measure for seismic performance assessment of shield tunnels in liquefiable and non-liquefiable soils

Relating the ground motion intensity measure (IM) and the structural engineering demand parameter is a crucial step in the performance-based earthquake engineering framework. This study investigates the selection of IM for development of probabilistic seismic demand model of urban shield tunnels subjected to earthquake ground motions in liquefiable and non-liquefiable soils. Nonlinear dynamic effective stress analyses are conducted to develop a database of the intensity measures and structural seismic responses exposed to ground shaking and soil liquefaction. Two advanced soil constitutive models (i.e., Pressure DependMultiYield03 and PressureIndependMultiYield for liquefiable and non-liquefiable soils, respectively) are employed to capture the nonlinear behavior. A suite of 23ground motion intensity measures is selected and assessed based on the evaluation criteria of correlation, efficiency, practicality and proficiency. Eventually, the multi-level fuzzy comprehensive evaluation method is employed to comprehensively consider the four evaluation criteria and establish the optimal ground motion IM suitable for probabilistic seismic demand analysis of shield tunnel structures. The obtained results show that the sustained maximum acceleration is the optimal IM for evaluating the structural seismic response, followed by the peak ground acceleration in both liquefiable and non-liquefiable soils. Peak pseudo velocity spectrum, displacement square integral and Housner spectral intensity are found to be not suitable for the probabilistic seismic demand analysis of shield tunnel structures.

ПІДВИЩЕННЯ ЕНЕРГЕТИЧНОЇ ЕФЕКТИВНОСТІ РЕГУЛЬОВАНОГО ЕЛЕКТРОПРИВОДУ ОДНОЦИЛІНДРОВОГО ПОРШНЕВОГО КОМПРЕСОРА

The peculiarities of the operation of closed systems of adjustable electric drives of single-cylinder reciprocating compressors due to the presence of a non-linear dependence between the motor load torque and the angular movement of its rotor are considered. The method of synthesis of the regulator of the amplitude of the supply voltage of an induction motor of such an electric drive at a fixed value of the supply frequency is proposed. According to the results of research, it was found that the effect of increasing energy efficiency (reducing the difference in efficiency for constant and periodic loads) due to the use of a voltage regulator increases with a decrease in the power supply frequency. It is shown that the optimization of the transmission coefficient of the voltage regulator of electric drives with a non-linear dependence between the motor load torque and the angular movement is expedient to be carried out according to the criterion of maximum efficiency. References 25, figures 10, table 1.

Developing a transdisciplinary tool for water risk management and decision-support in Ontario, Canada

Extant literature reveals limited examination of risk management strategies and tools to support decision-making for sustainable water management in the private sector in Ontario, Canada. Moreover, a gap persists in understanding how water risks are prioritized and managed in the private sector. Addressing these gaps, this transdisciplinary study applied a novel normative-analytical risk governance theoretical framework to water security risks, which combines analytical risk estimation with normative priorities and insights of practitioners, to examine contextually-attuned water risk management strategies and develop a decision-support tool. Using mixed methods, the study first employed a survey to elicit practitioner priorities for seven water risk indicators and investigated water risk management approaches. Then, interviews were conducted to obtain in-depth understanding about the priorities, strategies, opportunities, and role of trust in water risk management. The study found that a combination of regulatory, voluntary, and multi-stakeholder participatory approaches is needed, contingent on the severity of water risks, sector, location, and context. Moreover, the criteria of flexibility, efficiency, strategic incentives, and economic and regulatory signals, are essential. Finally, using secondary data analysis, the study integrated interdisciplinary risk data with practitioner priorities to develop a first-of-a-kind decision-support tool for water risk management in Ontario, ‘WATR-DST’. WATR-DST is an automated tool that applies the study’s findings and assists multi-sector water-related decisions, practices, and investments by providing contextually-attuned risk information in a user-friendly format. Based on the user inputs (location, sector, and source type), it displays the severity of seven water risks, qualitative themes under public and media attention, and recommends water risk management strategies. Thus, the study contributes to knowledge in sustainability management, risk analysis, and environmental management by demonstrating the novel application of the normative-analytical framework for water risk management in the private sector. WATR-DST is a key contribution envisioned to improve multi-sector water-related decisions in Ontario.

Expected performance of Cosmic Muon Veto Detector

The India-based Neutrino Observatory (INO) collaboration has established a miniICAL detector, at the transit campus of IICHEP, Madurai, India, which serves as a prototype detector of the larger Iron-Calorimeter detector (ICAL). The purpose of miniICAL lies in unraveling the intricate physics and engineering challenges inherent in constructing and operating a substantial ICAL-type detector. To explore the feasibility of building a large-scale neutrino experiment at shallow depths the collaboration has embarked upon the construction of a Cosmic Muon Veto Detector (CMVD) around the miniICAL detector. The primary objective of this endeavor revolves around attaining a veto efficiency surpassing 99.99%, while simultaneously maintaining a false-positive rate lower than 10-5. The CMVD system is based on extruded plastic scintillators (EPS) and utilizes wavelength-shifting fibers to collect scintillation photons and uses silicon photomultipliers (SiPMs) as photo-transducers. A software tool is developed for CMVD and is integrated with the existing miniICAL consisting of RPC detectors. The simulation is tuned to include properties of EPSs and WLS fibers, measured efficiencies, and time resolutions of EPSs. Measured spectra and noise in SiPMs are also taken into account. The muon tracks in the RPCs are used to estimate the muon veto efficiency of CMVD to arrive at efficient muon veto criteria. With improved veto efficiency of cosmic muons, the CMVD experiment will help to pave the way for future large-scale shallow-depth neutrino experiments e.g. INO-type experiments, enhancing our understanding of neutrino properties.