Surface Subsidence Response to Safety Pillar Width Between Reactor Cavities in the Underground Gasification of Thin Coal Seams

Sustainability, Journal Year: 2025, Volume and Issue: 17(6), P. 2533 - 2533

Published: March 13, 2025

Underground coal gasification (UCG) is a clean and automated technological process that has great potential. Environmental hazards such as the risk of ground surface subsidence, flooding, water pollution are among problems restrict application UCG. Overburden rock stability above UCG cavities plays key role in prevention mentioned environmental hazards. It necessary to optimize safety pillar width maintain ensure minimal losses. This study focused on investigation influence parameters taking into account non-rectangular shape presence voids reactor immediate roof. The main research was carried out using finite element method ANSYS 17.2 software. results first simulation stage demonstrated during underground thin seam Controlled Retraction Injection Points method, with measuring 30 m length pillars ranging from 3.75 15 width, subsidence movement remain within pre-peak limits, provided pillar’s bearing capacity maintained. probability crack initiation mass subsequent low. However, case pillars’ destruction, there high evolution overburden rock. In formation panel, destruction aquiferous sandstones breakthroughs become possible. infrastructure therefore at destruction. assessment second numerical simulation. stress–strain state temperature distribution surrounding rocks near shows size heat-affected zone less than thickness seam. no significant direct around previously excavated cavities. failure side walls reactor, which occurs gasification, leads reduction useful pillar. algorithm applied this enables optimization under any mining geological conditions. makes it possible increase reliability process. For conditions research, led decrease by 0.5 m. optimal

Language: Английский

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Impact of Supply Chain Risk Management on Product Innovation Performance of Omani SMEs: Synergetic Moderation of Technological Turbulence and Entrepreneurial Networking

Sustainability, Journal Year: 2025, Volume and Issue: 17(7), P. 2903 - 2903

Published: March 25, 2025

Considering the continuous diversity of supply chain and increasing risks involved, small medium enterprises are overly concerned about managing related because these firms hardly have capacity to bear major shocks. Furthermore, considering resource scarcity firms, moderating roles entrepreneurial networking, current pace change in technology, effect technological turbulence has also been added research. Quantitative methods applied this The data collected using adapted questionnaires from prior studies. A purposive sampling technique collect data. sample 99 was chosen, their owners managers were chosen as representatives. framework evaluated Structural equation modelling with help SMART PLS-3. findings drawn analysis empirical confirmed that risk management holds a significant impact on product innovation performance sustainability SMEs. Additionally, networking both hold direct well. Moreover, relationship between performance.

Language: Английский

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Potential and Restrictions of Food-Waste Valorization through Fermentation Processes

Fermentation, Journal Year: 2023, Volume and Issue: 9(3), P. 274 - 274

Published: March 10, 2023

Food losses (FL) and waste (FW) occur throughout the food supply chain. These residues are disposed of on landfills producing environmental issues due to pollutants released into air, water, soil. Several research efforts have focused upgrading FL FW in a portfolio added-value products energy vectors. Among most relevant advances, biotechnological these via fermentation has been demonstrated be potential valorization alternative. Despite multiple investigations performed conversion FW, lack comprehensive systematic literature reviews evaluating fermentative processes upgrade different identified. Therefore, this article use considering composition, operating conditions, platforms, product application, restrictions. This review provides framework residue based reported applications, experimental, theoretical data. Moreover, future ideas analyzed information. Thus, applications restrictions used for highlighted. In end, must considered mandatory step toward minimization, circular economy, development more sustainable production consumption patterns.

Language: Английский

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Assessing the barriers of integrating technological innovations in textiles sector: Implications towards sustainable production

Green Technologies and Sustainability, Journal Year: 2023, Volume and Issue: 1(3), P. 100039 - 100039

Published: Sept. 1, 2023

With the aftermath of pervasive COVID-19, recent war between Ukraine and Russia, severity resource crisis, global textiles industry has become a significant concern, especially for emerging economies. Technological advancements combining traditional manufacturing processes with cutting-edge technologies may safeguard textile industry's supply chain. To establish stability in value chain sector nations, it is crucial to precisely identify relevant barriers advanced practices. Consequently, this study aims determine merging technological conventional practices assess their relationships using an integrated framework. highlight, measure, analyze hierarchical interconnections integrating technical innovations context economy, combines fuzzy theory, Pareto analysis, total interpretive structural modeling (TISM). Following that, Matriced' Impacts Cruoses Multiplication Applique Un Classement (MICMAC) clusters barriers, depending on levels driving dependence power, were developed. Based literature review feedback from experts, 19 discovered, analysis was applied major trivial barriers. that myriad evaluations done top (13- be precise), interrelationships have been investigated TISM-fuzzy MICMAC. Lack government support policies insufficient incentives, heavy taxation & inadequate capital investment identified as most The model study's findings will assist leaders applying key concepts strategic planning decision-making successfully combine tools ensure sustainable

Language: Английский

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Risk Mapping: Ranking and Analysis of Selected, Key Risk in Supply Chains

Journal of risk and financial management, Journal Year: 2023, Volume and Issue: 16(2), P. 71 - 71

Published: Jan. 25, 2023

This study aimed to analyze the impact of key causes external and internal risk on supply chains. The basic most probable are listed, based literature research interviews with representatives metal industry. analysis was carried out by semiquantitative assessment using maps. relationship between probability an event occurrence its chains tested. postulates that factors can be controlled through monitoring. Attention drawn beneficial aspects maps enable a comprehensive situation. Both risks cause turmoil disruption chain. findings suggest uncertainty crises have direct chain dangerous. work presents possibility practical application for presented approach complements methodology Risk were used as tool in assessing individual It has been found subject high risk, which monitored matrix procedures. conducted showed critical areas crises, environmental uncertainty, relationships, manufacturing dangerous related conditions beyond control participants article fills gap monitoring focusing selected, generalized measures industrial supply.

Language: Английский

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