Resource Reservation Research Articles

Assessing the impact of vaccination and medical resource allocation on infectious disease outbreak management: a case study of COVID-19 in Taiyuan City.

Amidst an emerging infectious disease outbreak, the rational allocation of vaccines and medical resources is crucial for controlling the epidemic's progression. Analysing COVID-19 data in Taiyuan City from December 2022 to January 2023, this study constructed a dynamics model to assess the impact of COVID-19 vaccination and resource allocation on epidemic trends. Vaccination significantly reduces infection rates, hospitalisations, and severe cases, while also curtailing strain on medical resources by reducing congestion periods. An early and sufficient reserve of medical resources can delay the onset of medical congestion, and with increased maximum capacity of medical resources, the congestion's end can be accelerated. Stronger resource allocation capabilities lead to earlier congestion resolution within a fixed total resource pool. Integrating vaccination and medical resource allocation can effectively reduce medical congestion duration and alleviate the epidemic's strain on medical resource capacity (CCMR).

Traffic Management of Multi-AGV Systems by Improved Dynamic Resource Reservation

Traffic Management of Multi-AGV Systems by Improved Dynamic Resource Reservation

РЕСУРСБЕРЕЖЕНИЕ В СИСТЕМЕ УСЛУГ СЕРВИСНОЙ КАСТОМИЗАЦИИ ТРАНСПОРТНО-ТЕХНОЛОГИЧЕСКИХ МАШИН

Transport and technological facilities operated in conditions of fulfilling the versatile tasks of the agro-industrial complex operate in constantly changing road conditions. These factors create problems for the stable operation of all machine systems, which generally requires adjusting the strategy for assessing their residual resource. Designers of transport and technological machines offer new models equipped with security systems, with a given reliability according to the criterion of criticality. Such systems are equipped with protective devices capable of withstanding a limited number of permissible external loads. (Research purpose) The research purpose is substantiating the individualization of the architecture of constructive customization of technological machines operated in the agro-industrial complex at the sites of service organizations that have undergone reengineering of production and technical infrastructure. (Materials and methods) Considered ways to improve agricultural machinery by manufacturers to increase their competitiveness. The problem of replacing machines that have exhausted their service life with new, structurally improved ones was highlighted. In an evidentiary form, it was shown that some of the components have a residual resource and the ability to continue to function effectively. (Results and discussion) It was proposed to use the resource reserves of the machines by justifying the extension of their service life. Recommendations were made for operators on the individualization of the architecture of constructive customization of technological machines operated in the agro-industrial complex. It is proposed to introduce innovative technological processes of machine modernization into the organizational structure of service organizations by reengineering the production and technical infrastructure. It was recommended to compare the time periods of technological progress when assessing the level of technical perfection of machines. As an example, a modal analysis of the undercarriage of technological machines was performed. (Conclusions) The resource-saving effect of the introduction of the service organization’s reengineering methodology with the inclusion of a model of customization of agricultural machinery with the justification of the service life extension period was substantiated.

Modeling and analysis of natural resource utilization in the extraction industry: approaches and practices

In the context of ongoing depletion of global natural resource reserves, solving the problem of organizing proper control over their availability and efficient use becomes crucial. Control is also necessary to address important tasks related to the reproduction of used resources and restoration of land plots to their natural state. Such control should be carried out both by state and local authorities and by the economic entities engaged in extraction and processing of natural resources. The article highlights methods of control and analytical techniques in the field of extraction and processing of natural resources. The authors emphasize the importance of using economic-mathematical and logical methods, and distinguish between methods of factual and documentary control. They draw attention to the analytical interpretation of actions and events and discuss various approaches to analysis, such as SWOT and PEST, to take into account political, economic, social, and technological aspects of the external environment. The application of these methods can increase the efficiency of management processes in the extraction and processing of natural resources, contributing to the sustainable development of enterprises in this industry. The article also discusses PEST analysis for considering political, economic, social, and technological factors. Conducting PEST analysis allows for a deep understanding of the external environment in which the company operates by: identifying potential threats and opportunities; preparing for potential changes in the external environment, enabling the company to better prepare for them; developing strategies and making decisions aimed at maximizing opportunities and minimizing threats; identifying competitive advantages that can be used to attract customers or markets; monitoring the external environment and timely responding to changes.

Pollution characteristics and risk assessment of endocrine-disrupting chemicals in surface water of national (freshwater) aquatic germplasm resource reserves in Guangdong Province.

The distribution, composition, and risk assessment of 8 EDCs in the surface water of 14 national aquatic germplasm resource reserves (freshwater) were investigated during dry and wet seasons. Bisphenol A (BPA), nonylphenol (NP), and octylphenol (OP) were the main contributors of the 8 EDCs. The concentrations of phenolic pollutants in surface water during the dry season were higher than those in the wet season. However, no significant seasonal differences were found among the steroid hormones. According to the evaluation of estrogenic activity (EEQ > 1.0), E2 and EE2 were the main contributors to estrogenic activity. EDC mixtures posed a higher risk to crustaceans and fish (RQ > 1.0) and a moderate to high risk to algae (RQ > 0.1). Fish were the most sensitive aquatic organisms. In the study areas, EE2, E1, BPA, NP, and E2 had a higher risk than the other three compounds and should be controlled as a priority.

Sharing without Caring: High Prevalence and Similarity of Potentially Zoonotic Gastrointestinal Helminths in Two Sympatric Nonhuman Primates in a Tropical Resource Reserve

Sharing without Caring: High Prevalence and Similarity of Potentially Zoonotic Gastrointestinal Helminths in Two Sympatric Nonhuman Primates in a Tropical Resource Reserve

Resources Reservation Schemes for Time-Sensitive Networked Vehicular Applications With a View on ISAC

Resources Reservation Schemes for Time-Sensitive Networked Vehicular Applications With a View on ISAC

AlabOS: a Python-based reconfigurable workflow management framework for autonomous laboratories

AlabOS is a workflow orchestration framework designed to address the increased complexity in autonomous laboratories, featuring a reconfigurable experiment workflow model and a resource reservation mechanism.

Influencing Factors Of Technological Pedagogy Content Knowledge’s Development For Pre-Service English Teachers In China

Technology has been highly integrated into almost all the domains of society, including educational fields. As a reserve resource of teachers, the training of pre-service English teachers' educational informatization ability has to be placed in a highly valued position. A quantitative method was used to investigate Technological Pedagogy Content Knowledge (TPACK) of 215 pre-service English teachers with questionnaires. Statistical Package for Social Science 26.0 (SPSS 26.0) was used to analyze the collected data. Results show that 1. Gender has no significant effect on TPACK of pre-service English teachers. 2. Internship experience has a significant impact on TK of TPACK framework; and Educational Technology Course has significant impact on both TPACK and TK, CK, PCK of TPACK framework for pre-service English teachers. 3. Linear multiple regression was employed to ascertain that TPK, TCK and TK have significant predictors of TPACK. It is suggested that Class Teaching, Instructors Training, Assessment Requirements and Internship Experience should be optimized to cultivate pre-service English teachers to satisfy the requirements of information age.

Dynamic Setting Method of Assessment Indicators for Power Curves of Renewable Energy Sources Considering Scarcity of Reserve Resources

Dynamic Setting Method of Assessment Indicators for Power Curves of Renewable Energy Sources Considering Scarcity of Reserve Resources

Research on Legal Issues of Ecological Protection of Cultivated Land in China under the Background of Food Security

A sound legal system for ecological protection of cultivated land plays an important role in ensuring ecological protection of cultivated land and food security. The legalization of ecological governance will inevitably become an important governance approach in China in the future. With the development of agriculture and the further expansion of urban scale in China, the sustained high-intensity utilization of arable land resources has led to severe degradation, quality decline, ecological imbalance, and insufficient reserve resources. The sustainable utilization of arable land resources is facing severe challenges. This requires stricter requirements for farmland protection work, clear implementation of hard measures for farmland protection, and adherence to the strictest farmland protection system while comprehensively promoting the rule of law and ensuring food security. By exploring the problems in China’s legal system for ecological protection of arable land, starting from timely strengthening the systematic legislation for ecological protection of arable land, improving the legal mechanism for ecological protection of arable land, improving legal measures for ecological control of arable land, and improving the legal protection system for pollution prevention and control of arable land, we aim to improve the legal system for ecological protection of arable land, promote the sustainable utilization of arable land resources, and ensure national food security.

Recommending Surface Water Quality Monitoring for the Nature Reserve Using Multivariate Statistical Methods

Lung Ngoc Hoang Nature Reserve has a crucial role in conserving and protecting the natural ecosystem and biodiversity in the Mekong Delta, Vietnam, and the local communities also receive great benefits from aquatic resources in this nature reserve. This study was conducted to assess water quality in the Lung Ngoc Hoang Nature Reserve and to provide important information for the monitoring program using multivariate statistical methods. Water samples were collected bimonthly from fifteen locations belonging to five functional zones of the nature reserve (i.e., buffer zone, main canal, administrative and service zone, ecological restoration zone, and strictly protected zone). The physiochemical properties of water samples were measured, including temperature, pH, electrical conductivity (EC), total suspended solids (TSS), dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), total nitrogen (TN), total phosphorus (TP), sulfate (SO42-), iron (Fe2+), and aluminum (Al3+). The results showed that the levels of TSS, COD, and Fe2+ exceeded the Vietnamese standard on surface water quality, and the DO level was also far below the standard. Besides, the concentrations of TN, TP, and Al3+ in the nature reserve area showed the risk of eutrophication and negative effects on aquatic organisms. Problems of water quality were observed in the main canal and the administrative and service zones more than in the other zones. Cluster analysis (CA) suggested a reduction in the number of monitoring frequencies and locations to four months (i.e., January, April, July, and September) and twelve locations, respectively. This reduction allows for a decrease in the effort and cost of the monitoring program with adequate information to evaluate water quality. Moreover, principal component analysis (PCA) identified five principal components, which could explain 80.98% of the total variance of the initial dataset. Potential pollution sources were also recognized based on PCA, including the nature properties of sulfate-acid soils, livestock, fertilizer, and domestic activities. The findings of this study can enhance our understanding of water quality in the nature reserve area and the effectiveness of future monitoring programs. Doi: 10.28991/CEJ-SP2023-09-015 Full Text: PDF

Investigation of the effect of natural resource dependence on environmental sustainability under the novel load capacity curve hypothesis

ABSTRACT The concern that over-depleting natural resources (NAT) may somehow be costly for environmental quality is a recurrent topic in empirical analysis. However, the literature has predominantly focused on studying the effects of increases in NAT use on the environment, ignoring potential non-linear interactions. The current study seeks to expand the previous literature by examining the non-linear environmental ramifications of NAT in Russia, home to one of the world’s richest natural resource reserves. In this regard, adopting the load capacity factor (LCF) as an environmental indicator, the study examines how the positive and negative changes in NAT affect the country’s environmental well-being within the framework of the N-ARDL model for 1992–2021. This study uses artificial intelligence unit root and asymmetric Fourier causality approach for robustness analysis. Empirical evidence suggests that positive shocks to NAT have a deleterious influence on the LCF, while negative changes in NAT contribute to environmental well-being. Nonetheless, the long-term influence of a unit positive shock in NAT decreases the LCF by a greater amount than a unit negative shock increases it. The results also demonstrate a ‘U-shaped’ connection between income growth and ecological well-being, confirming the validity of the LCC hypothesis. Furthermore, the outcomes reveal that renewable energy consumption and human capital upgrade environmental quality. Therefore, Russian policymakers should focus on the SDG 7, 12, and 13 targets, which refer to substantially increasing the quality of primary and secondary education, the share of green energy in the total energy mix, and effective resource management and utilization.

Improving the Electronic Conductivity of Alluaudite Na2.5Fe1.75(SO4)3 Cathodes for Na-Ion Batteries

The increasing dependency on batteries in modern technology has led to an ever-increasing demand that cannot be met by Li-ion batteries (LIBs) alone. The push towards using renewable energy and electric vehicles, coupled with the limited reserves of lithium resources is encouraging research into alternative options for electrochemical storage devices. Na-ion batteries (SIBs) are a promising alternatives due to the similarity of their chemistry to LIBs. This allows for utilisation of analogous materials and methods already in place for LIBs. Furthermore, SIBs are more economically viable and environmentally sustainable due to the abundance of the elements that can be utilised as electrode active materials. For example, SIB cathodes, such as Na2.5Fe1.75(SO4)3, can be synthesised from precursor materials that are widely available by-products of industry. The polyanionic framework of Na2.5Fe1.75(SO4)3 has three 3-dimensional vacancies within it, in which Na-ions de/intercalate.[1] However, the performance of Na-ion batteries is hindered by the low electronic conductivity of these polyanionic compounds, affecting the flow of electrons through the material and the reversible movements of the Na ions.[2] To address this issue, previous reports have shown that using a conductive additive such as carbon black and graphene oxides can increase the electronic conductivity of Na ion cathode materials and improving battery performance.[3]In this work, we investigate a non-stoichiometric alluaudite phase Na2.5Fe1.75(SO4)3 material (NFS), produced by a ball-milling-assisted solid-state synthesis. A study of the effects of variables on the ball milling process using the was carried out. A multi-step process involving a repetition of the ball milling and annealing was used to decrease particle size and eliminate impurities. The results were compared regarding particle size, impurities present, conductivity and battery performance. The obtained materials were characterised using X-ray diffraction, scanning electron microscopy and electrochemical impedance spectroscopy. The materials were tested as cathodes in sodium half-cells with 1 mol/L NaClO4 in ethylene carbonate (EC)/ propylene carbonate (PC) electrolyte. The additional ball milling and annealing steps saw a significant decrease in impurities present across all variations in methodology. All batteries show three redox peaks in their differential capacity plots, demonstrating that all three vacancies within the polyanionic framework of Na2.5Fe1.75(SO4)3 are active during charge and discharge. The best performing electrode achieved a capacity of 80 mAh/g using only C45 as a conductive additive. These are promising results that are expected to improve with further studies researching the addition of RGOs and MXenes into the ball milling process. These composite electrodes will be prepared by combining rGOs/MXenes with the NFS precursors during the synthesis process of Na2.5Fe1.75(SO4)3 to enhance battery performance further.

Synthesis and Quality Control of Calcium Chelidonate Substance with Osteogenic Activity

Introduction. Osteogenic agents are used for pathologies associated with impaired bone formation, complications of bone fractures, the use of implants and endoprostheses, and tumor lesions of bone tissue. High osteogenic activity in vivo on the model of experimental osteomyelitis, in vitro and in situ on mesenchymal stem cells was revealed for calcium chelidonate, which is a promising substance for the production of osteogenic drugs.Aim. Development of a method for obtaining the calcium chelidonate substance by chemical synthesis and methods of its standardization.Materials and methods. The synthesis of chelidonic acid was carried out on the basis of diethyloxalate; calcium chelidonate – using synthesized chelidonic acid and anhydrous calcium chloride. The structure of the substances was confirmed by optical spectral methods, mass spectrometry, elemental and X-ray structural analysis. The quantitative content was assessed using a liquid chromatograph. Statistical processing of the results of quantitative measurements was carried out in the STATISTICA 8,0 program.Results and discussion. As a result of the synthesis, chelidonic acid (4-oxo-4H-piran-2,6-dicarboxylic acid) was obtained, which is colorless or cream-tinged crystals. The structure of the resulting compound is confirmed by spectral characteristics and elemental analysis data. A method for obtaining the calcium chelidonate substance has been worked out, while the yield of the target product was 100 ± 5 %. By X-ray structural analysis, it was found that the synthesized compound is calcium chelidonate trihydrate [Ca(ChA)(H2O)3]n with M.M. (C7H8O9Ca) 276,15. Methods for establishing authenticity, purity and quantification of the substance have been developed. The amount of impurities in the resulting substance did not exceed 0.1 %, and the content of the main component ranged from 99,2 ± 0,20 to 100,4 ± 0,35 %.Conclusion. Due to the limited resource reserves and the complexity of the process of extracting chelidonic acid from plant raw materials, a method for the chemical synthesis of calcium chelidonate substance with osteogenic activity is proposed. The obtained results provide prospects for further research in the direction of the development and introduction of synthetic calcium chelidonate as a new osteogenic drug, provided that the specific biological activity is comparable to the natural analogue.

Legal Analysis in Mitigating Environmental Impacts Due to Coal Mining in Batanghari Regency, Jambi Province

Jambi Province is one of the provinces in Indonesia with natural mining wealth which contains many natural resource reserves. The processing of these natural resources has the potential to be managed as an energy source very well, such as the natural resources contained in it are coal. one of the areas in Kotoboyo village, Dalam subdistrict XXIV, Batanghari Regency, Jambi Province, is one of the largest coal producing areas in Indonesia, this area has been very productive in recent years, several coal mining companies have been located in the area, this does not necessarily mean that This means that the results of coal reserves can have a positive impact on the people who live in the surrounding area. In fact, there tends to be no visible environmental impact on the community. The mining activity process around the mine still uses national public road access, causing traffic jams that last for kilometers and disrupt traffic. crossing public roads in local communities, the Central, Regional Government and the Ministry of Energy and Mineral Resources should firmly work together to face the polemics that occur in the community as quickly as possible to provide solutions so that special road access to reduce the massive mobility of coal mining movements can be realized immediately for the prosperity of the community's economic movement.

Temporal Variation of Sunshine Duration and Its Potential Affecting Factors with Emphasis on Saudi Arabia for the Period 1983-2022

The rising trend in fossil fuel prices and the depletion of natural resource reserves in the future force the authority of any country to find a more sustainable option for energy sources, so that future energy demand can be ensured for sustainable development. Assessing the trend and availability of sunshine duration (SD) at a spatiotemporal scale and the effect of different metrological parameters on the SD change is crucial to ensure the efficient utilization of solar energy, support the growth of renewable energy systems, and contribute to a sustainable future. In Saudi Arabia, The average monthly SD is 283 ± 18 hm-1, and there was a rising trend of SD that increased at a rate of 1.48 hy-1 with a 95% confidence level. Most of the regions experienced an annual mean of SD between 3375 and 3754 hy-1, except for the southwest and the middle-eastern part where SD was between 3072 and 3375 hours in a year. The highest mean monthly SD was 318 ± 39 hm-1 during the summer season, but the trend of SD changes over the years was downward ( -0.21 hy-1). The mean monthly SD was lowest (244 ± 38 hm-1) in the winter season, and the changing pattern of SD was on the rise at a rate of 0.26 hy-1 with a 95% confidence level. There was a decline in SD across the country between 1983 and 1998, whereas from 2000 onward the country experienced an upward trend in SD. Relative humidity (R = -0.53, p < 0.01) and cloud cover (R = -0.42, p < 0.05) as potential factors have a strong negative correlation with SD, whereas wind speed (R = 0.06, p > 0.1) and temperature (R = 0.12, p > 0.1) have a positive correlation with SD in the region.

Application of the electrical resistivity method and the estimation of limestone volume: a case study

The present work used the electrical resistivity approach to conduct a three-dimensional modeling and initial volume estimation of the limestone layer in the Mintom region located in southern Cameroon. In order to achieve the objectives of the study, a total of 21 electrical soundings spaced 250 m were first collected in the field using the Schlumberger array. These soundings were conducted along three profiles oriented in an east–west direction, spaced 500 m. Additionally, a geological survey was conducted to identify and emphasize the presence of limestone formations within the designated study region. The interpretation of the sounding data was conducted based on the analysis of the sounding curves. The interpretation outcomes, specifically resistivity and thickness, were compared with the geological field data, resulting in the development of lithostratigraphic logs for each sounding. The geological sections were constructed using the logs of the designated profile. The lithological logs were utilized to establish a lithological interface model and calculate the volume of the limestone layer at 260 ± 13 × 106 m3, utilizing the inverse distance method built into RockWorks software. A resistivity value is assigned to each geological layer in a sounding curve, allowing for the development of a resistivity variation model specific to the limestone layer. The proposed model facilitates the categorization of limestone layers based on their resistivity variations, thus serving as a fundamental reference for prospective exploratory activities within the designated study region. Our integrated approach provides a replicable model for a better understanding of the limestone reserve and effective management of this valuable resource.

Modern practice of algal resources exploitation in the Russian Federation: trends and opportunities

The article deals with the prospects of economic use of algae resources, which have unique biochemical properties and are valuable raw materials for many areas of industrial activity. The relevance of this topic is due to the fact that, despite the high adaptive capacity and almost ubiquitous distribution of algal resources, their economic potential is not fully realized, and this area of the economy is very promising for scientific research. Analysis of available literature showed that in spite of obvious perspectives of expanding sphere of algae resources use, Russian businessmen still leave without proper attention possibilities of algae use as raw material for different industrial processes. At the same time, the Far Eastern and Northern sea areas with particularly rich reserves of algae resources, which are very promising from the point of view of their economic development, have now been identified. The examples presented in this paper demonstrate the high potential prospects for expanding the economic use of algae resources in Russia.

Do natural resources lead to a curse or blessing in terms of income inequality?

This study examines the effects of the revenues generated by the extraction of natural resource reserves on income distribution in countries with natural resource reserves. The theoretical underpinning is based on the view that natural resources, which are defined in the literature as the natural resources curse, cause many adverse macroeconomic and political effects on countries' natural resource discoveries and revenues from extracted natural resources. The study aims to investigate whether natural resources have adverse effects on income inequality for countries with higher revenues of natural resources and abundant natural resources. For this purpose, we perform estimations using the system GMM estimator for low-income, lower-middle-income and natural resources-rich countries in the period 2009–2019. We find an inverted U-shaped relationship between natural resource rent and income inequality. In other words, natural resource rent has a cursing effect up to a threshold, then it has a blessing effect on income inequality. We also find an inverted U-shaped relationship between economic growth and income inequality. Additionally, the rule of law has a negative effect on income inequality.