bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preparation of CS/CNT/PAM-U composite hydrogels with excellent pressure sensitivity by in-situ polymerization of terpolymer DES and properties
Authors: li bin , Zhou Mengjing , Wu Aolin , Liu Haiying , Hu Zhigang , Ma Ming , Su Lihua 
Published: September 2023

Abstract
Deep eutectic solvent (DES) was prepared using choline chloride (ChCl), acrylamide (AM) and urea (U) as raw materials. CS and N-CNTs were added to DES as fillers, and composite hydrogels were prepared by in-situ polymerization (SP). The composite hydrogels were characterized and analyzed by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). In this paper, the pressure sensitivity, electrical conductivity, swelling and mechanical properties of the composite hydrogels were analyzed. The results showed that the pressure sensitivity of the composite hydrogels increased significantly after CS and N-CNTs were introduced into the hydrogels as fillers. When the filler content reached the highest, the pressure sensitivity of the composite hydrogels increased by 13 times compared with that of the hydrogels without filler. Due to the electrical conductivity of CS and N-CNTs, the higher the filler content, the stronger the electrical conductivity of the composite hydrogel, and the enhancement of electrical conductivity also has an impact on the pressure sensitivity of the composite hydrogel. This study provides a preparation method of composite hydrogel with excellent conductivity and pressure sensitivity.
Measurement of flow birefringence induced by the shear components along the optical axis using a parallel-plate-type rheometer
Authors: Worby William Kai alexander , Nakamine Kento , Yokoyama Yuto , Muto Masakazu , Tagawa Yoshiyuki 
Published: September 2023

Abstract
The present study investigated the flow birefringence induced by shear components along a camera's optical axis, which has been neglected in conventional theories of photoelastic measurements.
Measurements were conducted for a wide range of shear rates from a direction perpendicular to the shear using a high-speed polarization camera and a parallel-plate-type rheometer.
The measurement results obtained from a fluid with low viscoelasticity, specifically a dilute suspension of cellulose nanocrystals, showed that the birefringence increases monotonically as the stress components along the camera's optical axis increase.
It was also found that the birefringence showed a power law with respect to the shear rate.
This letter reports a key fact required for polarization measurements of shear rate (shear stress) in three-dimensional flows.
The relationship of electrical conductivity and percolation in composites of multiwall carbon nanotubes and thermoplastic polyurethane
Authors: Poblete-Allen Myra Ruth , Capelle Eva , Albers Simon , Uphoff Holger , O’Byrne Sean , Timmers Heiko , Mertins Hans-Christoph 
Published: September 2023

Abstract
The relationship of electrical conductivity and percolation has been characterised in detail for multiwall carbon nanotubes (MWCNT) in thermoplastic polyurethane (TPU). Weight fractions of MWCNT of up to 5 wt% were studied. Ultrasonic dispersion of the MWCNT during synthesis has been shown to significantly improve homogeneity and percolation of the composite material as evidenced by electron microscopy. Extending ultrasonication time improves the homogeneity of the composite material. The percolation threshold for homogenous MWCNT/TPU material has been determined as 0.95 wt%. Observing surface charging effects with electron microscopy is suggested as a method to probe mesoscopic uniformity. Material uniformity also relates to the magnitude of the apparent conductivity exponent, when conductivity data are fitted with the percolation law. The integration of MWCNT in the polyurethane matrix has been depth-profiled with electron microscopy by varying the energy of the primary electrons. This has shown that many MWCNT curl up into horseshoe shapes. The observation challenges the common assumptions that MWCNT retain their high aspect ratio in the composite material and that they can be modelled as straight rods.
Heavy Metal Transport With Adsorption for Instantaneous and Exponential Attenuation of Concentration
Authors: Liang Ruishi , Isa Zaiton Mat 
Published: September 2023

Abstract
Heavy metal pollutant is a serious problem in environmental pollutions, and it is very difficult to eradicate once the soil is contaminated with heavy metal. As heavy metal adsorption has been proven to occur, the heavy metal’s behavior can be modeled as a transport equation with adsorption. Based on two-dimensional model equations, analytical solutions are obtained for instantaneous and exponential attenuation of concentration injections boundary conditions, by utilizing the method of Laplace transform. The results highlight the significant influence of injection conditions on the peak concentrations. Furthermore, there exists a correlation between retardation factors and heavy metal concentrations, where a decrease in retardation factors leads to an increase in heavy metal concentration.
Improved adaptive regularization for simulated annealing inversion of Transient Electromagnetic
Authors: Tang Xiang , Liu Shangbin , Nian Xiaofei , Deng Shengqiang , Liu Yuchao , Ye Qiongyao , Li Yingjie , Li Yangyi , Yuan Tong , Sun Huaifeng 
Published: September 2023

Abstract
Geophysical inversion usually involves ill-posed problems. Regularization is the most commonly used method to mitigate the ill-posedness faced in geophysical inversions. Adaptive regularization methods have been more widely used in linearized inversion than in stochastic inversion methods. In this paper, we consider the contri-butions of the data fitting term and the stabilizing term in the objective function and give an improved adaptive regularization method for very fast simulated annealing (VFSA) inversion of transient electromagnetic (TEM) data. The optimized regularization method adjusts two terms dynamically in the objective function to make them in balance. In TEM inversion, we compare the results with that of the original SA and the widely used regularization techniques. For synthetic models where layered Earth is considered, we find the improved regularization can balance the data misfit functional and the stabilizing functional. We use arbitrary initial regularization values in the process. We also compare the computational efficiency and find the improved regularization method runs much faster due to the adaptive adjustment of the regularization. The inversion results are similar to that of the conventional ones. Finally, we apply this method to field data, and the inversion results show very good agreements with nearby borehole data.
A Fuzzy-Based Servers’ Management Technique for M/M/m Queue Network
Authors: Gbadebo Adegbuyi David , Akinwale Adio Taofiki , Sodiya Adesina Simon , Simeon A. Akinleye 
Published: September 2023

Abstract
The study presents an M/M/m queue model for a fuzzy-based management of parallel multiple servers. In this network, customers arrive according to a homogeneous Poisson process at rate λ and are served on first-come, first-served basis. The model may have up to three categories of servers viz: active servers, ’server(s) on vacation’ and reserved servers. In a situation where all active servers are busy and customers arrive, there are three possibilities: a server on vacation (if any), is turned on to attend to the arriving customers; the system request for additional server(s) from among reserved servers or the arriving customer(s) wait until one or more of the active servers becomes idle. Decision on management of servers is based on the output. This decision is taken by an Expert System which adopts fuzzy logic approach to process inputs as crisp variables to generate output based on given rules. This is necessary to ensure that available servers are put to optimal use while arriving customers are serviced within the shortest possible time and servers’ costs are minimized.
The physical significance of Hall and ion-slip effects on second-grade nanofluid flow over a vertically oriented surface with oscillating free-stream
Authors: Singh Jitendra Kumar , Maurya Ashish Kumar , Hussain Syed M. 
Published: September 2023

Abstract

This study is concerned with the simulations of impacts of Hall and ion-slip effects on the transient hydromagnetic convective flow of Titanium oxide-engine oil (TiO2-EO) second-grade nanofluid over a permeable vertically oriented surface. The flow considered originated due to the buoyancy action, rotatory fluid action and oscillatory free-stream motion. The tractable mathematical model of the fluid flow problem (flow governing equations) is obtained from field and constitutive equations under the boundary layer approximation. An analytical solution of the mathematical model is obtained with the aid of a perturbation solution scheme. Two physical cases of interest are considered, namely, the case of non-resonance and the case of resonance. The significance of impacting flow parameters to the flow is measured graphically by computation of solution in the non-resonance case. An important feature of the flow explored from the study is that both the Hall and ion-slip effects tend to stabilize the principal flow due to the revolution of ions and elections about a robust applied magnetic field. The Hall effect destabilizes the secondary flow. The consequence of the ion-slip current on the secondary velocity is opposite to that of the Hall current because of the heavier mass of ions in comparison to the electrons. When the time is very small, the principal velocity grows for the incremental values of oscillation frequency. This effect reverses as time progresses. The behaviour of the normal velocity for the oscillation frequency is exactly opposite to that of the principal velocity.
Mathematics Subject Classification (MSC): 76A05, 76A10, 76U05, 76W05
A Novel Hybrid EMPSO-PFTS Method for Fuzzy Time Series Forecasting: Integrating Picture Fuzzy Sets and Exponentially Mutated Particle Swarm Optimization
Authors: Dutta Debashis , Rath Subhabrata 
Published: September 2023

Abstract
Current research has demonstrated that fuzzy sets can be used to address forecasting issues. Researchers have created numerous fuzzy time series (FTS) approaches without taking into account the non-determinacy. For a considerable period, researchers have consistently focused on two significant key issues: determining the optimal interval size and incorporating non-determinacy. The focus of this article is to present a groundbreaking picture fuzzy time series (PFTS) forecasting model that is constructed based on the principles of picture fuzzy sets (PFSs). A PFS represents a generalized form of fuzzy and intuitionistic fuzzy sets. Here picture fuzzy clustering (PFC) technique is utilized for the construction of PFS. In this article, we integrate PFS and exponentially mutated particle swarm optimization (EMPSO) to develop a novel hybrid EMPSO-PFTS forecasting method. Optimal length is determined by EMPSO, and non-determinacy is taken into account by PFS when time series data is fuzzy. The suggested forecasting method is used on data sets from the University of Alabama and the market price of the State Bank of India (SBI-P) at the Bombay Stock Exchange, India, to demonstrate its applicability and usefulness. Mean square error (MSE) and average forecasting error (AFE) are used to gauge the effectiveness of the proposed method. The significant reduction in both MSE and AFE is strong evidence of the superior performance of the proposed EMPSO-PFTS method compared to various existing methods. To ensure the reliability and validity of the proposed method, rigorous statistical validation and performance analysis are conducted.
Estimation of Tidal Potential Energy in the South China Sea: A Study Using Semi-Empirical Tide Model Data
Authors: Nguyen Loc Xuan 
Published: September 2023

Abstract
The study delves into a thorough assessment of the tidal potential energy, utilizing comprehensive semi-empirical tide models. These datasets were meticulously examined for their efficacy, encompassing 34 tidal stations along the study area's coastal region. Notable efficacy is discernible within the FES2014, DTU16, and EOT20 datasets, underscoring their adeptness in providing precise prognostications of tidal patterns, with FES2014 emerging as particularly adept. The dataset highlights locations (in the South China Sea) with significant tidal amplitudes and consequential energy potential, including Anpu Gang, Bac Lieu, and the Batang Lupar estuary. The influential role of the semi-diurnal component (M2) in dictating energy distribution is prominently evident.
Metaverse in Multimedia Gaming: Quality of Experience (QoE) Challenges and Standards Requirements for Immersive Media Consumption
Authors: Khan Abdullah Ayub , Yang Jing , Laghari Asif Ali , Hajjej Fahima , Chen Yen-Lin , Ku Chin Soon , Por Lip Yee 
Published: September 2023

Abstract
The immersive development in computing and communication systems, especially the evaluation of multimedia technology, has created various new paradigms. One of the concepts that has popped up recently is the metaverse. The technology opens different environments to the users for rapid connection on any of the socio-cyber platforms. With the emergence of 3D virtual gaming and its association, this technology has become one of the hot research areas, whether the work on headsets or the quality of experience (QoE) while using recent headset models by users and assessment. In multimedia systems, gaming is the only domain that is successfully involved among users, which generates millions of dollars in revenue in a single day. However, the collaboration of the metaverse in the gaming industry takes the user experience to the next level in terms of being completely disconnected from the real-world scenario, which means a fully immersive virtual environment. It includes the concept of lightweight visualization, a place with free headset activities, and a moving, immersive 3D multimedia experience. Although these are the advantages of the collaborative approach, various QoE challenges, standard requirements, and media consumption problems have emerged. By analyzing these prospects, this paper contributes to two subdomains. First, a novel framework for securely connecting metaverse technology in multimedia gaming is proposed. While using conventional metaverse technology, the role of QoE is addressed in the general-purpose gaming environment deployment. Second, this paper presents a gamer-oriented experience and assessments for the betterment of technological maturity and future developments. In addition, this paper mentioned a possible solution to the list of comprehensive standard requirements and related challenges.
Generalized weighted core inverse in Banach *-algebras
Authors: Chen Huanyin , Abdolyousefi Marjan Sheibani 
Published: September 2023

Abstract
In this paper, we introduce the notion of the generalized weighted core inverse in a Banach algebra. We characterize this new generalized inverse by using the generalized weighted core decomposition and present the representations by the generalized Drazin inverse. These extend the core-EP inverse and weighted (pseudo) core inverse for complex matrices and linear bounded operators to more general setting.
2020 Mathematics Subject Classification. 15A09, 16U90, 46H05.
Variation of the feeding/resting period in modified vertical treatment wetlands (depth, zeolite as medium) employed for treating rural domestic wastewater in tourist areas
Authors: Vera-Puerto Ismael , Valdés Hugo , Correa Christian , Olave Jorge , Pérez Valeria , Arias Carlos A. 
Published: September 2023

Abstract
This work aimed to evaluate the performance of modified vertical flow treatment wetlands (VF-TWs) in terms of depth and medium to assess the effect of the feeding/resting periods and footprint (FP). The modifications were proposed for treating domestic wastewater in rural areas with flow variations such as tourist sites. The experimental setup included six laboratory-scale VF-TWs: (a) normal (VF-N), bed depth 1.0 m, filled with sand and (b) modified (VF-M), bed depth 0.5 m, filled with sand (upper) and zeolite (bottom, saturated). The operation was divided into three phases (3 months each), varying the feeding/resting period and FP: phase I, 5 d/10 d, 2.6 m2/person-equivalent (PE); phase II, 3.5 d/3.5 d, 1.7 m2/PE; and phase III, only feeding no resting, 0.85 m2/PE. Influent and effluent grab samples were taken every 2 weeks. The results showed effective removal (above 60%) of total solids, organic matter, and pathogens for both VF-N and VF-M. Regarding nutrients, VF-M showed a phosphate removal below 60%, but no consistent removal (15–60%) of total nitrogen. Thus, the results suggest that proposed modifications can be an option to be established in tourist sites, but further work should be conducted to improve and optimize total nitrogen removal.
KAMIENIE MILOWE W KARIERZE ZAWODOWEJ – RAPORT Z BADAŃ DOJRZAŁYCH NAUCZYCIELEK
Authors: Strutyńska-Laskus Elżbieta 
Published: September 2023

W artykule podejmuję wątek znaczenia kamieni milowych w przebiegu karier widziany z perspektywy nauczycieli z długim stażem pracy. Przez kamienie milowe rozumiem emocjonalnie znaczące punkty zwrotne związane z jakimś szczególnie ważnym dla nauczyciela wydarzeniem wyraźnie oddzielające jedną fazę kariery od kolejnej. Te znaczące wydarzenia prowadzą do zmian w podejściu do wykonywania pracy zawodowej nauczyciela.
Podstawą zaprezentowanych analiz jest 14 indywidualnych wywiadów pogłębionych (IDI) z nauczycielkami, które mają wieloletni staż pracy w szkole (minimum 20 lat) i ukończony 50 rok życia. W badaniach zastosowałam analizę tematyczną, której celem jest identyfikacja powtarzających się wątków tematycznych w wypowiedziach nauczycielek, a dotyczących znaczących emocjonalnie punktów zwrotnych, których skutki dla przebiegu karier mogą być korzystne (pozytywne) i/lub niekorzystne (negatywne). Dane kodowałam w ramach podejścia indukcyjnego. Jakościową analizę danych przeprowadziłam z wykorzystaniem programu MAXQDA 2020.
Na podstawie treści zgromadzonego materiału wyłoniłam dwie kategorie wątków tematycznych prowadzących do zmian w funkcjonowaniu zawodowym nauczycielek biorących udział w badaniu. Pierwsza z nich wskazuje na rolę wydarzeń znaczących emocjonalnie niezaplanowanych i niezależnych od nauczyciela, które są następstwem okoliczności zewnętrznych obiektywnych lub subiektywnych. Druga – dotyczy wydarzeń/działań znaczących emocjonalnie zaplanowanych i zależnych od nauczyciela, które są związane z czynnikami wewnętrznymi.
Z badań wyłania się obraz „pozytywnych” i „negatywnych” kamieni milowych mających znaczenie dla funkcjonowania w roli nauczyciela. Znajomość szczególnie tych drugich może przyczynić się do przeciwdziałania negatywnym emocjom towarzyszącym codziennej pracy nauczyciela, w tym wypaleniu zawodowemu.
Insights on Quercetin Therapeutic Potential for Neurodegenerative
Diseases and its Nano-technological Perspectives
Authors: Goyal Rajat , Mittal Garima , Khurana Suman , Malik Neelam , Kumar Vivek , Soni Arti , Chopra Hitesh , Kamal Mohammad Amjad 
Published: September 2023

Abstract:
The neurodegeneration process begins in conjunction with the aging of the neurons. It
manifests in different parts of the brain as Aβ plaques, neurofibrillary tangles, Lewy bodies, Pick
bodies, and other structures, which leads to progressive loss or death of neurons. Quercetin (QC) is
a flavonoid compound found in fruits, tea, and other edible plants have antioxidant effects that
have been studied from subcellular compartments to tissue levels in the brain. Also, quercetin has
been reported to possess a neuroprotective role by decreasing oxidative stress-induced neuronal
cell damage. The use of QC for neurodegenerative therapy, the existence of the blood–brain barrier
(BBB) remains a significant barrier to improving the clinical effectiveness of the drug, so finding
an innovative solution to develop simultaneous BBB-crossing ability of drugs for treating neurodegenerative
disorders and improving neurological outcomes is crucial. The nanoparticle formulation
of QC is considered beneficial and useful for its delivery through this route for the treatment
of neurodegenerative diseases seems necessary. Increased QC accumulation in the brain tissue and
more significant improvements in tissue and cellular levels are among the benefits of QC-involved
nanostructures.
Editorial
Authors: Álvarez Andrés , López Rivera Edwin 
Published: September 2023

Este número de Tiempo & Economía inicia con una sección especial titulada La marca de la Misión Kemmerer en la historia económica de Colombia en la que se presentan dos artículos que dan cuenta del impacto de la Misión en el desempeño económico e institucional de los países a los que llegó, con lo que la revista conmemora los 100 años de la primera Misión Kemmerer en Colombia. Los primeros 100 años de experiencia republicana en Colombia dejaron un sistema económico rezagado con respecto a otros países con historias similares en la región; este retraso se evidenciaba tanto en sus estructuras productivas como en sus instituciones. El año 1923 marcaría una profunda transformación de las instituciones económicas y fiscales con la Misión Kemmerer: la fundación del Banco de la República, la Contraloría General de la República y la Superintendencia Bancaria redefinió las principales reglas del juego de la economía.
Legal Counseling on the Role of the Mediator in the Mediation Process for the Klinik Keluarga Sakinah-Pimpinan Daerah 'Aisyiyah Team of Malang City
Authors: Kurniawan Wahyudi , Cahyani Tinuk Dwi 
Published: September 2023

The problems faced by Klinik Keluarga Sakinah -Pimpinan Daerah 'Aisyiyah (KKS-PDA) Team of Malang City are educational background, the majority of which are not legal science, minimal knowledge of legal science, especially regarding mediation, do not knowledge about the duties, roles, and functions of mediators in the mediation process. mediation. Bearing in mind that this mediation is a non-litigation realm, for the KKS PDA team in Malang City this skill is really needed, considering the number of residents in Malang City and law enforcement officers is unequal. So, the role of the KKS-PDA Team of Malang City to contribute to assist in the mediation process is also needed by the community. So, before the KKS-PDA Team of Malang City carries out the mediation process as a mediator (a neutral party), it is necessary to provide counseling to the KKS-PDA Team of Malang City so that they have these skills.

Abstrak
Penyuluhan Hukum Peran Mediator Dalam Proses Mediasi Tim Klinik Keluarga Sakinah Pimpinan Daerah Aisyiyah Kota Malang. Permasalahan yang dihadapi oleh Klinik Keluarga Sakinah (KKS) Pimpinan Daerah Aisyiyah (PDA) Kota Malang adalah latar belakang pendidikan yang mayoritas bukan ilmu hukum, memiliki pengetahuan yang minim mengenai ilmu hukum khususnya mengenai mediasi, belum mengetahui mengenai tugas, peran dan fungsi mediator dalam proses mediasi. Mengingat bahw mediasi ini, merupakan ranah non litigasi maka bagi tim KKS PDA Kota Malang skiil ini sangat dibutuhkan, mengingat jumalah penduduk di kota Malang dengan aparat penegak hukum yang tidak seimbang. Maka peran dari tim KKS PDA Kota Malang untuk berkontribusi membantu dalam proses mediasi juga dibutuhkan oleh masyarakat. Maka sebelum tim KKS PDA Kota Malang melakukan proses mediasi sebagai mediator (pihak yang netral) maka perlu dilakukan penyuluhan terhadap tim KKS PDA agar memiliki skill tersebut.