Basic Criteria Research Articles

Incorporation of organic liquid waste in alkali activated mixed fly ash/blast furnace slag/metakaolin-based geopolymers

The solidification of liquid oils (Shell Spirax and Nevastane EP 100) used as simulants of radioactive liquid organic waste (RLOW) in a specifically developed mix fly ash, blast furnace slag and metakaolin based geopolymer was studied in the present work. The process consists of obtaining the geopolymer paste slurry, produced by dispersing the solid precursors in the aqueous alkaline solution, and then adding RLOW via direct incorporation into the slurry under mixing to create an emulsion, before the geopolymer hardens. Geopolymer/oil composites have been prepared with various oil content (10, 20, 30 and 40 %v.), and subsequently characterized to verify their compliance with basic waste acceptance criteria. The positive role of the addition of a superplasticizer, to improve the fluidity of the paste, the density, and the homogeneity of the structure of geopolymer hardened materials was also demonstrated. The mechanical and engineering properties of the pastes and of solidified materials have been verified via rheological measurements and compressive strength tests. The optimized reference formulation loaded with 30 %v. oil waste loading has been tested in terms of raw materials variability and mixing proportion as part of a robustness study. Finally, the possibility to incorporate in the developed formulation other surrogated RLOW (tributyl phosphate/dodecane (30/70) and Liquid Scintillation Cocktail) has been studied with promising results.

Relationships between emotional labor, job burnout, and emotional intelligence: an analysis combining meta-analysis and structural equation modeling

AbstractThe present study adopted a meta-analysis design that incorporated structural equation modeling to explore the relationships between emotional labor (EL), job burnout (JB), and emotional intelligence (EI), and enable model validation. The results revealed that EL and JB were significantly and positively correlated, that EI was significantly and positively correlated with EL, and that EI was significantly and negatively correlated with JB. The SEM parameter estimation values were all positive, reaching the level of significance and meeting the basic fit criteria. The total effect size of EL on JB was 0.289, which was equal to the sum of the direct and indirect effect sizes (0.371–0.082). This result indicated that EL affected JB through EI, validating the presence of a moderating effect. Finally, the results were discussed, and practical suggestions were proposed.

Enhancing the quality of wholemeal bread with chia, sesame, and rosehip: mathematical modelling and organoleptic analysis

In this paper, the research was conducted using mathematical modelling methods to improve the quality of the product. This study aimed to determine the optimum composite mixture for producing whole wheat flour by adding sesame seeds, chia seeds, and crushed rosehip. Following the mathematical matrix, 20 different samples have been baked. The basic criteria were porosity and specific volume. The results were entered into Exel to draw up a graph. According to the graphic analysis, the most optimal mixture in terms of the dry matter mass in the dough was as follows in %: rosehip - 1.1%, chia seeds - 1.5%, and sesame - 2.2%. The organoleptic and physicochemical properties of the resulting samples were later analysed according to the recipes based on the selected composition of seeds. By swelling the protein shells of chia and sesame in a humid environment, amino acids in the flour combine into a chain to form a skeleton. At the same time, the ascorbic acid in the rosehip binds with the carbon atoms in the chain, strengthening the framework. As a result, large amounts of gases formed in whole grain flours are trapped in these frames, increasing the porosity of bread by 21.8%, increasing the volume of production by 29.5%, absorbing proteolytic enzymes under the influence of globulins in chia grain, slowing down amino acid degradation, reducing moisture content by 3%.

Detection of Crack Location and Crack Depth in Leaf Spring

The objective of this work is to find the crack location and crack depth in leaf spring of an army jeep. The spring is subjected to heavy jerks and vibration during the military operation. Therefore it is necessary to find the crack in a leaf spring. Crack in a leaf spring introduces local flexibility that would affect the vibration response of the leaf spring. Main problem is to detect existence of a crack together with its location and depth in the leaf spring .We used a natural frequency a basic criteria for crack detection. Analytical calculations are done to find out natural frequency of leaf spring by using Euler's beam theory. Ansys 16.0 is used to find out natural frequency along with experimentation on FFT analyzer. Now, We propose a method based on some set of fuzzy rules obtained from the information supplemented by Numerical Analysis. Fuzzy controller use comprises of three input variables (first, second and third natural frequency) and two output variables (relative crack length and relative crack depth) are generated with Triangular MF.

Numerical study on wave attenuation via 1D fully kinetic electromagnetic particle-in-cell simulations

Abstract Electromagnetic wave-plasma interaction has drawn much attention recently due to numerous important technologies and applications, taking advantage of phenomena such as electromagnetic waves being reflected or absorbed in a plasma medium. The physics of wave-plasma interaction can be complicated, when non-uniform, non-equilibrium, or anisotropic plasmas are involved, in which numerical simulations can be used to fill the gaps between theoretical solutions and experimental measurements. Among many numerical methods, the particle-in-cell method, which can solve accurately both the electromagnetic fields and particle trajectories
self-consistently, would be the best choice to study wave-plasma interaction problems as long as the computational cost can be accepted. However, the applications of PIC on wave-plasma interaction remain rare, and the numerical effects of the PIC method on accurately evaluating the wave attenuation have not been studied in depth. In this paper, a number of numerical parameters and physical parameters are tested using a 1D electromagnetic PIC method plus Monte Carlo collision model. It is found that as long the as the basic PIC criterion is met, the PIC results can be trustable, and the numerical noise due to limited number of particles has a minor effect. The physical parameters of the EM wave frequency, amplitude, the plasma temperature, thickness, and collision type are studied, and their effects on the wave attenuation are presented. In addition, strategies on establishing simulation setup and evaluating the wave attenuation in terms of power or energy are discussed.

SIA Criteria Compliance of Third Bosphorus Bridge(Yavuz Sultan Selim) Social Impact Assistment

Social, economic, cultural conditions and living systematics that differ according to these, deepen the human-environment relationship. This relationship brings along human’s tendency to the environment through positive or negative activities. Therefore; determining the impact of politics, law, planning and the implementation conditions of these on the environment and human’s health has become crucial. When the environmental impact of the activities in point are determined, it brings forth the possibility to prevent potential damage on the environment. Various impact evaluation systems exist around the world. In our country, Environmental Impact Assestment (EIA), Strategic Environmental Impact Assestment(SEA), Cumulative Environmental Impact Assestment(CIA) and Social Impact Evaluation (SIA) systems are implemented. In the process of project permits in our country, there exists legal regulations which enforce EIA, SEA, CIA. However, there is an absence of social impact evaluation enforcement in the project permission process in Turkey. Even though EIA, SEA and CIA are mandatory in legislation and execution, the social impact of these projects are not stressed adequately. Consequently, even in the existence of mandatory EIA, SEA and CIA by Turkish legislation, foreign investors reinforcing credit on politics, programs, plans and projects do not consider these as sufficient and enforce SIA to be included. There is a lack of standard implementation model to evaluate social impact which could be applied to every project. Due to the weakness and non-existing basic criteria in Turkish legislation on SIA in plans and projects, in this study, the SIA reporting has been prepared by benefiting the social approval criteria and comprehensive studies conducted by certain institutions such as UN, OECD and the World Bank. The sample project bridge, which is the widest bridge in the world with its 52 metre width and “Worlds topmost bridge” in the leaning sling bridge classification with its 322 meter tower height, unites the Asian and European continents to each other. The project with such importance, do not hold EIA, SEA, and CIA reports which evaluates environmental and social impact. The project only holds the SIA report which was conducted in 2013 by international finance institutions and the report was evaluated according to the criteria for social approval. Along with the evaluations on the sample field, suggestions has been set forth for the SIA implementations in Turkey.

Robustness of Dry‐Assembled Precast Wall and Coupled Wall‐Frame High‐Rise Structures With Voided Prestressed Slabs

ABSTRACTPrecast concrete structures are recognized among the structural typologies that may mostly suffer from progressive collapse as a consequence of local unpredicted damage, also due to past accidents occurred in buildings employing old precast technologies neglecting the basic robustness criteria and characterized by poorly detailed and/or executed joints and connections. Although vertical ties may relatively easily be provided in both frame and wall panel structures by employing ductile connection devices, dry‐assembled precast systems avoiding concrete pouring in the whole superstructure typically struggle to provide horizontal ties as strong as required by the current standards concerning progressive collapse, in which they are not fully framed yet. Nevertheless, these systems may exploit alternative sources of robustness to stop collapse progression arising from their structural arrangement, the shape of the slab elements employed, and the slab mechanical connections. This article presents the results of a numerical investigation focused on the structural behavior of a dry‐assembled precast floor system consisting of prestressed box‐section slab elements employed in either wall panel or coupled wall‐frame structural systems following the loss of one or multiple primary load‐bearing vertical elements. Nonlinear static simulations of different loss scenarios occurring in prototypes of 100‐m‐tall high‐rise buildings were carried out based upon spread plasticity modeling of the structural elements and experimentally calibrated nonlinear behavior of mechanical connections.

Contribution of Onshore Power Supply (OPS) and Batteries in Reducing Emissions from Ro-Ro Ships in Ports

Increasingly restrictive environmental regulations for the maritime sector have led shipping companies to look for technological alternatives to reduce emissions. This article introduces a methodology to analyse emission reductions of ships in port by incorporating batteries into the ships or using an onshore power supply system. These have not yet been considered together for comparison or with a focus on ship operation. The aim is to avoid the use of auxiliary engines in ports. First, the cost calculation method to be used is specified; then, the engine’s behaviour and the established basic navigation criteria are analysed; and finally, different alternatives are considered. A methodology is afterwards defined for selecting alternatives, comparing their costs with those of using auxiliary engines in port. As an example, it is applied to a Ro-Ro route between the ports of Montoir (France) and Vigo (Spain). The results indicate that incorporating batteries into the ship produces greater savings in annual costs than onshore power supply. The cost savings from onshore power supply depend on the range of prices in each port. However, the greatest emission savings are obtained by using the onshore power supply. This methodology can be extrapolated to other routes and vessels by incorporating real operating data.

Spacecraft design for interstellar travel

This paper endeavours to introduce and elucidate potential mechanisms aimed at the development of a spacecraft that is not only sustainable but also optimized for interstellar travel to the Andromeda galaxy, with the primary objective of scouting for potentially habitable exoplanets suitable for human colonization. The conceptual framework encompasses a comprehensive analysis of various critical components essential for the functionality and longevity of the spacecraft, including but not limited to propulsion systems, attitude control mechanisms, and advanced navigation systems. In addition, habitable areas which are also called Goldilocks zones refer to the areas around stars where planetary conditions are conducive to foster lives. As the existence of liquid water is known as the fundamental prerequisite for supporting life, the basic criteria for a habitable planet is temperature appropriate for water sustaining. The final analysis shows that space immigration is a determined consequence of human being and people should take effective measures to investigate future possible ways of immigrating to another planet.

Theoretical aspects of the intangible assets system in the process of enterprises strategic management: definition, characteristics, classifications

The article studies theoretical aspects of the intangible assets system in the process of enterprises strategic management. In particular, it highlights the points of view of Russian and foreign scientists regarding the definition of the intangible assets concept. The author’s definition of intangible assets as a set of a company’s resources and assets, which do not have a physical form, are used in the process of creating goods (services) for a long period of time (more than a year), are involved in the creation of values that provide a company a competitive advantage in the market and meet the requirements of identifiability (an object separation from other resources), the presence of future profits from their use, and direct or indirect control by a company. The basic criteria of intangible assets are identifiability, control over them, and the presence of future profits from their use. Despite the variety of available approaches in foreign literature to the intangible assets classification, in our opinion, the classification, which includes human, customer, and structural assets (capital), is fundamental. The article concludes that foreign authors shift their research focus from organizational (structural) intangible assets, such as corporate culture, organizational structure, and brand, to consumer and attitudinal (customer) ones, such as the level of customer satisfaction and loyalty and relationships value. The methodological approaches analysis to intangible assets assessment, the issues of their creation, modeling, and use by companies is a direction for further research.

Freezability of Semen Collected from Ganders of 12 Breeds Covered by the Polish Genetic Resources Conservation Program

Abstract A rapid decline in wild animal biodiversity, as well as in the number of local livestock breeds of lower economical values, makes species and breeds protection and creation of genetic reserves a necessity and a challenge of the 21st century. For birds, semen freezing is still the best method of gene preservation ex situ in vitro. The aim of the presented study was to assess the susceptibility to freezing process and to establish the semen gene bank of twelve goose breeds covered by the Polish genetic resources conservation program. Sexually mature ganders were randomly selected from four northern local breeds: Kartuska, Pomorska, Rypinska, Suwalska, four southern local breeds: Garbonosa, Kielecka, Lubelska, Podkarpacka, and four foreign goose breeds: Kuban, Landes, Roman and Slovakian. Each breed was represented by 12 males, twelve repetitions were carried out. Semen samples were frozen in a computer-controlled cryogenic chamber using a method developed for White Koluda goose. The basic evaluation criterion was sperm morphology in fresh and freeze-thawed semen assessed in nigrosine-eosin stained histological smears. The percentage of live in total and live normal sperm in the fresh semen differed significantly (P<0.05) between breeds. Semen of Kartuska and Suwalska ganders (northern breeds), contained the highest percent of live sperm – 94.4 and 94.1 respectively, including 52.5% and 54.2% of live normal sperm, while the lowest number of these forms was observed for Slovakian goose – 86.4% and 29.2%, respectively. The freezing process resulted in a significant (P<0.05) reduction in the total number of live and live normal sperm and an increase in dead sperm in all groups. Cryopreservation process was the most effective in case of Suwalska goose semen (28.4% of live normal cells in thawed semen) and the less profitable for Landes (7.4% of live normal cells). The analyses showed significant differences between breeds in sperm morphology in fresh and thawed semen. Moreover, the high proportion of live spermatozoa in the fresh semen did not guarantee a high proportion of spermatozoa after thawing, indicating the differences in semen susceptibility to cryopreservation process depending on goose breed.

Research Progress of Battery Thermal Management Systems with Minichannels

With the developing technology, energy storage systems, especially lithium-ion batteries (LiBs), play a critical role in electric vehicles and renewable energy applications. However, the performance and life of batteries are significantly affected by their operating temperatures. In this context, battery thermal management systems (BTMS) are of vital importance to ensure temperature control of batteries and to create a safe operating environment. BTMSs are divided into main two groups active and passive which require and does not require extra energy consumption, respectively. In this review, the basic principles, design criteria and application areas of battery thermal management systems are examined. First of all, the components of BTMS, passive and active cooling methods, heat dissipation and temperature monitoring techniques are detailed. In addition, the effects of different BTMS approaches on efficiency and performance are compared. The analysis of existing studies in the literature reveals the positive contributions of BTMS on battery life, charge-discharge efficiency and safety. In addition, future research areas and development opportunities are also highlighted. In conclusion, an effective thermal management system is a critical factor in the development of battery technology and has great potential in terms of sustainability of energy systems.

Prevalence of Musculoskeletal Disorders among Dental Professionals: An Umbrella Review

AbstractPerforming repetitive tasks on patients' mouths increases the risk of strain-related injuries for dental professionals, ultimately leading to musculoskeletal disorders (MSDs). This umbrella review aims to assess the scope of the MSD problem and identify the most often impacted body parts among dental professionals. A comprehensive search of the literature was performed from inception to March 30, 2024, in PubMed-MEDLINE, Embase, Scopus, and Web of Science databases. This review evaluated systematic reviews (SRs) and meta-analyses (MAs) of the observational studies that reported the prevalence of MSDs or any form of MSD among dental professionals such as dentists, dental hygienists, or dentistry students. The extracted data were complemented with narrative synthesis. A total of eight SRs and MAs were included in this umbrella review. Five of the eight studies were conducted globally, one in the context of Western countries and two in an Iranian context. Four of the eight studies focused on MSDs in dental practitioners, with prevalence rates ranging from 0.5 to 93%. Four body areas, that is, the neck, the lower and upper back, the shoulders and wrists, and hands were widely exposed to MSDs, with significant prevalence reported across studies. In conclusion, MSDs are common among dental professionals. Consequently, there is a pressing need to implement infrastructural and behavioral ergonomic solutions in the dental profession. However, a major concern arises from the critically low quality of available studies on MSD prevalence in dental professionals. Therefore, more rigorous research adhering to the basic quality criteria is required.

Accumulation of Cd and Pb in soils irrigated with sewage and non-sewage water in Prayagraj, India

Unmanaged agricultural fields and the extended usage of sewage irrigation water can raise the concentration of heavy metals (Cd and Pb) in the soil, turning it into barren soil. The study was conducted during 2022-23 at four sewage and non-sewage irrigated sites in Prayagraj namely Naini, Baxibandh, Rasulabad and Draupadi Ghat. The representative soil samples were taken at depths of 0-15, 15-30, 30-45 and 45-60 cm. Di-acid mixture method was used for the estimation of heavy metals (Cd and Pb) in the soil sample by AAS (Atomic Absorption Spectrophotometer) (AAnalyst600, Perkin Elmer Inc., MA, USA). Contamination factor (CF) and enrichment factor % (EF) of different sites showed various results which fulfill the basic criteria of present and future prospective of research. The highest concentration of Cd and Pb was found in the surface layer (0-15 cm) of sewage and non-sewage irrigated sites at Naini i.e., Cd (4.46±0.42 and 1.05±0.08 mg/kg) and Pb (6.53±0.62 and 1.18±0.12 mg/kg) respectively. The lowest concentration of Cd and Pb was found in the sub-surface layer (45-60 cm) of sewage and non-sewage irrigated sites at Draupadi Ghat i.e., Cd (1.02±0.09 and 0.16±0.01 mg/kg) and Pb (1.68±0.12 and 0.18±0.01 mg/kg) respectively. The concentration of heavy metals cadmium (Cd) and lead (Pb) declined with soil profile depth in both sewage and non-sewage irrigated soils. The long-term persistence of heavy metal contamination in soil can lead to severe issues; therefore, regular monitoring of sewage-irrigated soils is necessary to minimize heavy metal pollution.

Comprehensive assessment and energetic-exergetic performance optimization of a new solar thermal electricity system based on Scheffler-type receivers combined with screw-type volumetric machines

This study explores the potential of a novel solar-powered cascade Rankine cycle system based on Scheffler-type receivers combined with screw expanders. Specifically, in this solar power system, steam is generated in the Scheffler-type receiver, which proves to be well performing compared with other technological solutions to exploit solar energy, due to satisfactory efficiency of the focal receiver that is able to curtail heat losses, even at high evaporation temperatures. Subsequently, steam expands in the screw machines which, unlike conventional steam turbines, are specially fitting in energy conversion with vapor-liquid mixes in the field from tens to hundreds of kW. In the present study, comprehensive assessment of this renewable energy power system is thoroughly conducted in a large range of operating states. For this purpose, specific numerical models and basic criteria fixed for the screw expanders and Scheffler receivers part-load behavior are combined with thermodynamic formulations established for energetic-exergetic performance optimization of the entire solar thermal electricity plant. Hence, parametric optimization of the major thermodynamic factors involved at part-load operating situations is conducted to enhance the energetic and exergetic efficiencies of the designed solar thermal power system.

Designing Inclusive Playgrounds - Views of Architects - Civil Engineers, General and Special Education Teachers

Play and its benefits are recognised not only by the scientific literature, but also by international conventions as a right of all children, without discrimination, to which all UN member countries are signatories. The 2006 Convention on the Rights of Persons with Disabilities explicitly protects the participation and equal access of children with disabilities, together with their peers, in recreational, leisure and sporting activities. An inclusive play space is one that does not impede accessibility (physical, sensory, communicative and cognitive), providing a stimulating environment for all children and play experiences based on their preferences and motivations. In the context of the above, the purpose of this research is to explore the views of outdoor playground designers (civil engineers-architects) and general and special education teachers on the design of inclusive playgrounds. A questionnaire was used as a research tool, which included questions about the participants' biographical information, the investigation of the suitability and accessibility of existing playgrounds for people with disabilities, the investigation of the need to design inclusive playgrounds and the basic criteria they must meet. The sample consisted of 110 civil engineers-architects and general and special education teachers working in an urban area. The results of the survey can be used in the design of outdoor inclusive play areas in order to remove the barriers that make it impossible for all children to participate in play without discrimination.

A COMPARATIVE ANALYSIS OF LEGAL FRAMEWORK FOR DATA PROTECTION IN GLOBAL JURISDICTIONS

Along with the advancement in modern technology, the dependency of people on technology increased. Along with the passage of time, technology became so advanced that crimes entered the realm of cybercrimes. The article highlights the different types of data along with the basic criterion of data protection. This article refers to the critical analysis of global legislations of different states on data protection, how they intend to protect data, how they deal with the crimes such as theft, breach and misuse, and the loopholes in the legislation. All legislations related to data and their methods to tackle the data breach are endorsed, and their loopholes have been highlighted. Though every state has enacted legislation to protect data at its best, a global law is needed to protect data at the macro level. These crimes affect the individuals in the territory of a state but also make the international community vulnerable. There is a need to be proper provisions and clearly stating the jurisdiction and scope of these legislations. The blockchain system is an emerging technology system and can be used effectively to achieve the goal. Data protection is the right of every individual, and it should be preserved.

Just Law Theories Developed by Prominent Representatives of Russian Doctrinal Legal Research in the 19th Century

This article theoretically examines some contradictions and major milestones in the development of the doctrines of just laws as laid out by prominent Russian scholars during the 19th century. It analyzes the problems surrounding different theoretical approaches and conceptions regarding the connection between justice and law through the works of M.M. Speransky, N.M. Karamzin, P.I. Pestel, N.M. Muravyov, K.A. Nevolin, B.N. Chicherin, V.S. Solovyov, and S.A. Muromtsev. The results obtained show that the period under study was marked by the elaboration of a conceptual framework and basic criteria of positive law from the perspectives of liberal (natural law) and ethical beliefs, which align with spiritual (Christian) principles. This strengthened the humanistic and moral foundations of Russian legal understanding. Additionally, a continuing and stable connection is revealed between the philosophical and legal doctrines of the 18th and 19th centuries, indicating the common (abstract, not fully comprehended) motivational grounds and logic in the establishment of legal freedoms.

Characterization of the in vitro penetration and first-pass metabolism of genistein and daidzein using human and pig skin explants and Phenion full-thickness skin models.

OECD test guideline compliant skin penetration studies, which also comply with the SCCS basic criteria, are lacking for genistein and daidzein. Therefore, we have measured their penetration and metabolism using ex vivo explants of fresh (i.e., metabolically viable) pig skin, fresh and frozen human skin, and Phenion full-thickness (FT) models. Preliminary studies using fresh pig skin helped to define the optimal experimental conditions. The dermal absorption of 10nmoles/cm2 genistein and daidzein in ethanol was comparable in all four models. A first-pass metabolism in skin to glucuronide and sulfate metabolites was demonstrated for both chemicals in all models except frozen human skin. The main difference between fresh skin models was the overall extent of metabolism and the relative ratio of each metabolite, for example, much lower sulfate conjugates were formed in pig skin incubations. The extent of parent chemical metabolized and the contribution of the glucuronide pathway were relatively lower in PhenionFT models than in fresh human skin, possibly due to a higher penetration rate in this model and differences in the expression of functional metabolizing enzymes. When metabolism in human skin was abolished by freezing, more radiolabelled chemical remained in the skin tissue but the overall dermal absorption was unchanged. In conclusion, this initial characterization study showed that all models tested indicated that genistein and daidzein extensively penetrated the skin when applied to skin in ethanol. All fresh skin models produced the same metabolites, with the known species difference in the sulfation pathway demonstrated in pig skin.

Evaluation of Spare Parts Support Capacity of Civil Aircrafts Based on Type-2 Hesitant Pythagorean Fuzzy Sets and Improved Technique for Order Preference by Similarity to Ideal Solution

To improve the spare parts support capacity of civil aircrafts and given the actual lack of evaluation methods at present, the evaluation problem of spare parts support capacity was solved in this study by proposing a multi-attribute decision method based on Type-2 hesitant Pythagorean fuzzy sets and an improved Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). First, the basic definitions of Type-2 hesitant Pythagorean fuzzy sets were given, which were further promoted to Type-n hesitant Pythagorean fuzzy sets, and the basic order relation criterion of Type-2 hesitant Pythagorean fuzzy sets was introduced. Second, a complete evaluation system for spare parts supply support capacity was established with the spare parts of civil aircrafts as the study objects, and each evaluation indicator was introduced in detail. Then, the spare parts support solutions were preferentially sorted using the correlation coefficient formula of Type-2 hesitant Pythagorean fuzzy sets and improved TOPSIS. Finally, the reliability and reasonability of the proposed method were verified through an example calculation and comparative analysis. The experimental results indicate that the proposed method can acquire the evaluation results of spare parts support capacity more scientifically and can be referenced by relevant studies.