133 results match your criteria: "New Uzbekistan University[Affiliation]"

Article Synopsis
  • A novel nanocomposite, stannous oxide@hafnium carbide (SnO@HfC), was developed using a hydrothermal method for effectively degrading bisphenol A (BPA) through photocatalytic processes stimulated by peroxymonosulfate (PMS).
  • Characterization techniques confirmed the successful preparation of the nanocomposite, while DFT analysis provided insights into its crystal and electronic properties, highlighting the advantages gained from forming a heterojunction.
  • The SnO@HfC nanocomposite demonstrated high efficiency in degrading BPA, strong self-cleaning capabilities, and excellent durability over multiple cycles, making it a promising candidate for treating pharmaceutical wastewater.
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Amidst resource loss and environmental protection constraints, achieving green development necessitates enhancing green total factor productivity (GTFP) as a means of promoting rational and efficient resource allocation, thereby balancing economic growth and environmental preservation. Meanwhile, literature on the subject matter of GTFP from a sustainability viewpoint is minimal. As a result, this study employs the panel dataset from 30 provinces of China spanning the period 2005 to 2020 and utilizes the method of moments quantile regression (MMQR) developed by Machado and Santos Silva (2019) to analyze the heterogeneous role of green innovation, environmental regulations, and fiscal expenditure on GTFP.

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Cancer is a complex genetic anomaly involving coding and non-coding transcript structural and expressive irregularities. A class of tiny non-coding RNAs known as microRNAs (miRNAs) regulates gene expression at the post-transcriptional level by binding only to messenger RNAs (mRNAs). Due to their capacity to target numerous genes, miRNAs have the potential to play a significant role in the development of tumors by controlling several biological processes, including angiogenesis, drug resistance, metastasis, apoptosis, proliferation, and drug resistance.

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The small-drone technology domain is the outcome of a breakthrough in technological advancement for drones. The Internet of Things (IoT) is used by drones to provide inter-location services for navigation. But, due to issues related to their architecture and design, drones are not immune to threats related to security and privacy.

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The research paper mainly deals with waste heat recovery from internal combustion engines (ICE) using the organic Rankine cycle (ORC) and Thermoelectric generator (TEG). Simultaneously recovering the wasted heat of both exhaust gases and coolant, a novel configuration named two-stage is proposed. Then a comprehensive thermo-economic analysis and optimization are conducted.

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Innovative human capital (IHC) can boost the economic growth of nations. However, in recent years, economies have become more attuned to sustainable development. In this context, it is important to assess the potential impact of IHC on green growth.

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The rising urban population and accelerated resource consumption pose major environmental challenges. Given that around 75% of global resources are consumed in urban areas, understanding the true association between urbanization (UR) and ecological quality is necessary for better urban strategies. Alongside this, eco-innovation (ECO) can limit environmental pollution and thus, it is the cornerstone of environmental policies.

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Article Synopsis
  • The article focuses on optimizing a gas turbine (GT) with intercooling to enhance sustainability in energy production.
  • The integration of an Organic Rankine Cycle (ORC) system is proposed for heat recovery to minimize exergy destruction and environmental heat loss.
  • Through a parametric study, various decision variables are analyzed to improve exergy efficiency and minimize environmental pollutant emissions, yielding optimal conditions of 33% exergy efficiency and a thermal cost rate (TCR) of 0.9 $/s.
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IoTTPS: Ensemble RKSVM Model-Based Internet of Things Threat Protection System.

Sensors (Basel)

July 2023

Department of Information and Communication Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.

An Internet of Things (IoT) network is prone to many ways of threatening individuals. IoT sensors are lightweight, lack complicated security protocols, and face threats to privacy and confidentiality. Hackers can attack the IoT network and access personal information and confidential data for blackmailing, and negatively manipulate data.

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The potential of cold atmospheric plasma (CAP) in biomedical applications has received significant interest, due to its ability to generate reactive oxygen and nitrogen species (RONS). Upon exposure to living cells, CAP triggers alterations in various cellular components, such as the cell membrane. However, the permeation of RONS across nitrated and oxidized membranes remains understudied.

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According to the World Health Organization, it is estimated that by 2050, drug-resistant infections could cause up to 10 million deaths annually. Therefore, finding a new generation of antibiotics is crucial. Natural compounds from endophytic fungi are considered a potential source of new-generation antibiotics.

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Plastic sand paver blocks provide a sustainable alternative by using plastic waste and reducing the need for cement. This innovative approach leads to a more sustainable construction sector by promoting environmental preservation. No model or Equation has been devised that can predict the compressive strength of these blocks.

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Article Synopsis
  • Morphologically controlled palladium (Pd) nanocrystals, specifically porous self-standing Pd clustered nanospheres (Pd-CNSs) and Pd nanocubes (Pd-NCBs), were synthesized for enhanced electrocatalytic ethanol oxidation reaction (EOR) performance across various electrolytes.* -
  • The Pd-CNSs displayed significantly superior EOR activity compared to both Pd-NCBs and commercial Pd/C catalysts, with the best performance observed in alkaline (KOH) conditions.* -
  • The study concludes that the unique 3D porous structure of Pd-CNSs allows for better accessibility and utilization of active sites during EOR, making them more effective than other nanostructure shapes.*
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Discrete time model of sexual systems.

Heliyon

July 2023

EPSRC & MRC Centre for Real-World Systems, Zeeman Building, University of Warwick, Coventry CV4 7AL, UK.

Small factors are the biggest contributors to the biggest changes in an ecosystem which may lead to its demise. Simple things such as tweaking the humidity or tampering with the temperature can be the downfall of the habitants and the ecosystem itself. These changes can be observed right now with the consistent temperature increase on Earth along with the slew of issues that come with global warming.

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Green technologies, government stability, and green energy transition in a globalized world: evidence from E-7 nations.

Environ Sci Pollut Res Int

August 2023

Department of Banking and Finance, Faculty of Economic and Administrative Sciences, European University of Lefke, Lefke, Northern Cyprus, TR-10, Mersin, Turkey.

Unsustainable development and rising environmental degradation are major challenges for emerging nations that tend to promote human welfare by expanding economic development. Green energy transition (GETR) can help these nations to continue their development, reduce fossil fuel utilization, and achieve environmental sustainability. However, previous literature overlooks the importance of green technologies, government stability, and economic globalization in the GETR process.

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Long non-coding RNAs (lncRNAs) are non-coding RNAs that were transcribed from the human genome and have become important regulators in a number of cellular activities, mostly via controlling gene expression. A growing body of evidence shows that lncRNAs regulate various factors to impact various biological activities that are related to tumorigenesis, including the Janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway. lncRNAs influence the JAK-STAT signaling pathway either by directly targeting or via indirectly modulating other upstream or downstream pathways' components like members of the suppressor of cytokine signaling (SOCS) family, and other genes that regulate cell proliferation, apoptosis, migration, invasion, and epithelial-mesenchymal transition.

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Entropy optimized flow of Sutterby nanomaterial subject to porous medium: Buongiorno nanofluid model.

Heliyon

July 2023

Mechanical Engineering Department, College of Engineering and Islamic Architecture, Umm Al-Qura University, P. O. Box 5555, Makkah 21955, Saudi Arabia.

Owing to enhanced thermal impact of nanomaterials, different applications are suggested in engineering and industrial systems like heat transfer devices, energy generation, extrusion processes, engine cooling, thermal systems, heat exchanger, chemical processes, manufacturing systems, hybrid-powered plants etc. The current communication concerns the optimized flow of Sutterby nanofluid due to stretched surface in view of different thermal sources. The investigation is supported with the applications of external heat source, magnetic force and radiative phenomenon.

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Combined cycle power plant (CCPP) play a crucial role in providing electricity worldwide. Therefore, researchers and industrialists always focus on developing and improving its performance. One of the factors that affect the performance of CCPPs is weather conditions.

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Linking tourist's footprint and environmental tragedy through transportation, globalization and energy choice in BIMSTEC region: Directions for a sustainable solution using novel GMM-PVAR approach.

J Environ Manage

November 2023

Business School, Zhengzhou University, Henan, China; School of Economics, Quaid I Azam University, Islamabad, Pakistan; School of Economics, University of Chakwal, Chakwal, Pakistan. Electronic address:

The rising temperature in the world's atmosphere is an outcome strongly linked to man-made manufactured interventions. Recreational activities in the form of tourism are such interventions that can unleash multidimensional negative externalities if not regulated properly. The Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation (BIMSTEC) region has become one of the major hubs for recreational activities in the last few decades.

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Neutralizing the surging emissions amidst natural resource dependence, eco-innovation, and green energy in G7 countries: Insights for global environmental sustainability.

J Environ Manage

October 2023

School of Economics, Beijing Technology and Business University, Beijing 100048, China; Faculty of Management Sciences, Department of Business Administration, ILMA University, Karachi 75190, Pakistan. Electronic address:

The unrelenting surge in global warming in the current era suggests the inevitable need for governments across the globe to embark on policy measures that will help flatten the curve of the surging emissions. Consequently, the concept of carbon neutrality has become a vital policy approach for countries to achieve sustainable development. The present study extends the debates on carbon neutrality by examining the extent to which prominent factors such as natural resource dependence, eco-innovation, and green energy (biofuel and renewable energy) facilitate or hinder strides toward achieving carbon neutral environment in G7 economies.

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Role of natural gas and nuclear energy consumption in fostering environmental sustainability in India.

Sci Rep

July 2023

Faculty of Applied Sciences, Cape Peninsula of Technology, P. O. Box 652, Cape Town, 8000, South Africa.

Article Synopsis
  • The paper explores the impact of nuclear energy on ecological sustainability in India, examining indicators such as ecological footprint, CO2 emissions, and load capacity factor from 1970 to 2018.
  • It utilizes autoregressive distributed lag (ARDL) and frequency domain causality approaches to analyze the effects, including the influence of the 2008 global financial crisis, and confirms the validity of both the Environmental Kuznets Curve and load capacity curve hypotheses.
  • Findings indicate that nuclear energy and human capital improve ecological quality, while gas consumption and economic growth harm it; the research also provides policy recommendations for achieving sustainable development goals.
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For the conservation and sustainable use of the oceanic environment, monitoring of underwater regions is ineluctable and is effectuated with the aid of an underwater wireless sensor network. It is accoutered with smart equipment, vehicles and sensors and utilized for the transmission of acquired data from the monitoring region and forwarded to the sink nodes (SN) where the data are retrieved. Moreover, data transmission from sensor nodes to SN is complicated by the aquatic environment's inherent complexities.

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In this research, a novel nanocomposite scaffold was developed based on a natural chitosan-gelatin (CS-Ge) hydrogel by incorporating synthetic polyvinyl alcohol (PVA) and MnFe layered double hydroxides (LDHs). The CS-Ge/PVP/MnFe LDH nanocomposite hydrogels was characterized using Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Field Emission Scanning Electron Microscope (FE-SEM), Energy Dispersive X-Ray (EDX), vibrating-sample magnetometer (VSM), and Thermal gravimetric analysis (TGA). The biological tests conducted showed cell viability of the healthy cell line exceeding 95 % after 48 and 72 h.

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Multiobjective optimization and performance assessment of a PEM fuel cell-based energy system for multiple products.

Chemosphere

October 2023

Senior Researcher, Faculty of Chemical Engineering, New Uzbekistan University, Tashkent, Uzbekistan; Scientific and Innovation Department, Tashkent State Pedagogical University Named After Nizami, Tashkent, Uzbekistan.

In this article, the optimal design of a novel multi-generation system for the production of electricity, cooling, heat and freshwater is discussed. In this system, a Proton exchange membrane fuel cell (PEM FC) is used to generate electricity, and the heat produced by it is absorbed by the Ejector Refrigeration Cycle (ERC) and used to provide cooling and heating capacity. A reverse osmosis (RO) desalination system is also used to supply freshwater.

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