Classical Value Research Articles

Theory and Application of Interaction in Exhibitions - Take the "Good Things and Stylings" Exhibition of the Hong Kong Museum of Art as an Example

As society develops, people are gradually shifting from necessities to pleasure consumption. More and more people have enough time and money to improve their self-cultivation and aesthetic taste, so the number of art exhibitions has increased significantly. However, many of these exhibitions have problems, such as being unable to guarantee quality and losing the value of the exhibition itself. In typical museums, interaction with exhibits and blending with exhibitions has become a way that can determine the exhibition to stand out, which also represents the indispensable importance of interaction in modern exhibitions. Therefore, this article takes the exhibition "Art Personalized" by the Hong Kong Museum of Art as an example. It uses two analysis methodstheoretical analysis and case analysisto explain the theory and application of interaction in the exhibition. The interaction makes the exhibition interoperable with the times without missing the classic value, attracting the audience and connecting people with the exhibition. In this way, the artist's emotions can be accurately conveyed to the public, and the effect of two-way communication can be realized.

ON A SPECTRAL PROBLEM FOR THE LAPLACE OPERATOR WITH MORE GENERAL BOUNDARY CONDITIONS

In this paper, we consider a spectral problem for the Laplace operator with more general boundary conditions in a unit disk B1. In the special cases, the boundary conditions inlude periodic and Samarskii-Ionkin type boundary conditions. The main important property of our problem is its non-self-adjointness, which causes number of difficulties in their analytical and numerical solutions. For example, the Fourier method of separation of variables cannot be applied directly to our problem. Therefore, the possibility of separation of variables is justified in this paper. Namely, we present a method that reduces solution of the problem to a sequential solution of two classical local boundary value problems. By using this method, we construct all eigenfunctions and eigenvalues of the problem in explicit forms. Moreover, completeness of the system of the eigenfunctions is proved in L2 (B1). Notably, our result generalises the special case of the result on the two-dimensional periodic boundary value problem for the Laplace operator obtained in [1–2].

Hawking Radiation of Renormalization Group Improved Regular Black Holes

AbstractA renormalization group approach based on the idea that the primary contribution to the Schwarzschild‐like black hole spacetime arises from the value of the gravitational coupling is considered. The latter depends on the distance from the origin and approaches its classical value in the far zone. However, at some stage, this approach introduces an arbitrariness in choosing an identification parameter. There are three approaches to the identification: the modified proper length (the Bonanno–Reuter metric), the Kretschmann scalar (the Hayward metric), and an iterative, and, in a sense, coordinate‐independent procedure (Dymnikova solution). Using the Wentzel–Kramers–Brillouin method, gray‐body factors are calculated for the Standard Model massless test fields and their corresponding energy emission rates. For all of these solutions, it is found that the intensity of Hawking radiation of massless fields is significantly suppressed by several or more orders once the quantum correction is taken into consideration. This indicates that the effect of suppression of the Hawking radiation may be appropriate to the quantum corrected black holes in asymptotically safe gravity in general and is independent on the particular choice of the identification parameter.

Propagation of Chaos for Point Processes Induced by Particle Systems with Mean-Field Drift Interaction

We study the asymptotics of the point process induced by an interacting particle system with mean-field drift interaction. Under suitable assumptions, we establish propagation of chaos for this point process: It has the same weak limit as the point process induced by i.i.d. copies of the solution of a limiting McKean–Vlasov equation. This weak limit is a Poisson point process whose intensity measure is related to classical extreme value distributions. In particular, this yields the limiting distribution of the normalized upper order statistics.

Estimating Extreme Drought Risk Through Classical and Bayesian Paradigms

ABSTRACTDrought poses significant challenges to both the environment and the economy, necessitating proactive mitigation strategies. This study introduces both classical and Bayesian Markov Chain Monte Carlo (MCMC) extreme value probabilistic models for quantifying drought risk. The models utilise the generalised extreme value (GEV) distribution to characterise the distribution of standardised precipitation index (SPI) and non‐stationary standardised precipitation index (NSSPI) variables. Drought risk is probabilistically assessed across five regions in Baluchistan (a drought‐prone area of Pakistan) over two 20‐year periods per region. The study presents a novel approach in probabilistic quantification models, demonstrating slight performance improvement with the Bayesian MCMC paradigm, as evaluated by the continuously ranked probability scoring. Moreover, the application of the presented methodology can be extended to other climatic zones using Bayesian MCMC with informative priors constructed from historical records of the neighbouring regions.

Interior Ballistic Calculation and Analysis of Sudden Change of Motion Resistance of a Caliber Projectile in Bore

Abstract In this paper, three models are established to analyze and calculate the bore explosion phenomenon of a gun, namely, constant volume combustion model, classical interior ballistic model and one-dimensional two-phase flow. From the calculation results, the one-dimensional two-phase flow model has the largest calculation value, followed by the constant volume combustion model, while the classical interior ballistic calculation value is the smallest, and the one-dimensional two-phase flow model considers the situation closer to the actual situation. The calculation results of one-dimensional two-phase flow model show that the lag of the projectile will form a certain pressure shock behind the projectile, and the amplitude of the shock is negatively correlated with the decrease of the lag speed. In this accident, because the propellant basically burns, the pressure oscillation belongs to pure gas phase oscillation, and it does not produce abnormal pressure pulse and acceleration oscillation at the bottom of the projectile, but gradually converges, which does not cause the main charge of the projectile to detonate in the bore.

Joint Probability Distribution of Extreme Wind Speed and Air Density Based on the Copula Function to Evaluate Basic Wind Pressure

To investigate an appropriate wind load design for buildings considering dynamic air density changes, classical extreme value and copula theories were utilized. Using wind speed, air temperature, and air pressure data from 123 meteorological stations in Shandong Province from 2004 to 2017, a joint probability distribution model was established for extreme wind speed and air density. The basic wind pressure was calculated for various conditional return periods. The results indicated that the Gumbel and Gaussian mixture model distributions performed well in extreme wind speed and air density fitting, respectively. The joint extreme wind speed and air density distribution exhibited a distinct bimodal pattern. The higher the wind speed was, the greater the air density for the same return conditional period. For the 10-year return period, the air density surpassed the standard air density, exceeding 1.30 kg/m3. The basic wind pressures under the different conditional return periods were more than 10% greater than those calculated from standard codes. Applying the air density based on the conditional return period in engineering design could enhance structural safety regionally.

A Lorenz model for an anelastic Oberbeck-Boussinesq system

In an Oberbeck–Boussinesq model, rigorously derived, which includes compressibility, one could expect that the onset of convection for Bénard’s problem occurs at a higher critical Rayleigh number with respect to the classic O–B solutions. The new partial differential equations exhibit non constant coefficients and the unknown velocity field is not divergence-free. By considering these equations, the critical Rayleigh number for the instability of the rest state in Lorenz approximation system is shown to be higher than the classical value, so proving increased stability of the rest state as expected.

Development of Stem-Loaded Teaching Modules with PBL Learning Model to Improve Critical Thinking Skills of Elementary School Students

Critical thinking skills are the ability to solve problems by connecting knowledge in the student's cognitive system, so that they can find and choose solutions that are in accordance with the problems they face. This study aims to develop a stem-loaded teaching module with a PBL learning model to improve students' critical thinking skills. This research adapts the ADDIE development model which is an instructional development process with 5 stages, namely analysis, design, development, implementation and evaluation. The results of this study include: 1) Teaching module with stem content with PBL learning model; 2) The teaching module is very valid with an overall average value of the media validation test of 0.95 and the teaching module developed is very practical quality with an overall average value of the media practicality test of 95.5%; 3) The classical completeness value of the potential effect test obtained high effectiveness results with a percentage of 87%; 4) The module is declared effective with the difference between pretest and posttest scores, as well as the results of the n-gain test with an average of 0.48. The conclusion of this study is that teaching modules with stem content with PBL learning models are effectively used to improve the critical thinking skills of elementary school students. Suggestions from the author for the use of teaching modules in learning that will be implemented should be designed very carefully and pay attention to learning needs, the environment, facilities and infrastructure, and pay attention to the times so that the media developed can be implemented in learning properly, effectively, and efficiently. Learning about photosynthesis should often be trained in order to foster students' skills in understanding the basic concepts of IPAS so that students can think critically and simply in the environment around them. The conclusion of this study is that the teaching module containing STEM with the PBL learning model is effective for improving the critical thinking skills of elementary school students. Keywords: teaching modules, stem, PBL and critical thinking skills

Violation of the Wiedemann-Franz Law and Ultralow Thermal Conductivity of Ti3C2Tx MXene.

The high electrical conductivity and good chemical stability of MXenes offer hopes for their use in many applications, such as wearable electronics, energy storage, and electromagnetic interference shielding. While their optical, electronic, and electrochemical properties have been widely studied, information on the thermal properties of MXenes is scarce. In this study, we investigate the heat transport properties of Ti3C2Tx MXene single flakes using scanning thermal microscopy and find exceptionally low anisotropic thermal conductivities within the Ti3C2Tx flakes, leading to an effective thermal conductivity of 0.78 ± 0.21 W m-1 K-1. This observation is in stark contrast to the predictions of the Wiedemann-Franz law, as the estimated Lorenz number is only 0.25 of the classical value. Due to the combination of low thermal conductivity and low emissivity of Ti3C2Tx, the heat loss from it is 2 orders of magnitude smaller than that from common metals. Our study explores the heat transport mechanisms of MXenes and highlights a promising approach for developing thermal insulation, two-dimensional thermoelectric, or infrared stealth materials.

The category of Nothingness as a factor in the aesthetics and poetics of modernist literature

The article defines the specifics of the influence of ideas about Nothingness on the artistic philosophy and aesthetics of modernism. It is stated that the feeling of the "liminal" time created an ambiguous perception of the world: the mystical fear of "sinking into Nothingness" together with the "dying" world, the bitterness of the loss of the "former" world were combined with the expectation of an inevitable revival. Nothingness becomes a system-forming factor in the artistic philosophy and aesthetics of modernism. Modernism objects both to Nietzschean concept of the "death of God" and to the rational-pragmatic understanding of being. Modernist reflection on Nothingness means striving for a classical value attitude to the world, manifests the salvation of culture, the human and the divine in man, asserts the idea of the highest (in the ontological and value sense) being. Therefore, the defining position of modernist aesthetics is the assertion of the presence of the Supreme and the Sacred, one of the representatives of which in the text is Nothingness. Theoristsof modernism show interest in various traditions of understanding Nothingness in culture and master them in aesthetics and poetics. The heterogeneity of inherited traditions gives rise to a variety of poetic and philosophical concepts: the focus on cognition of the Unknowable through symbolic imagery, mytho-theurgic constructions as the basis of the “negative aesthetics” of the 20th century were combined with the ontologization of Nothingness in the chronotope of a work of art based on the convergence of archetypal oppositions and theaffirmation of the value of spiritual effort aimed at comprehending the highest meaning of existence. Thus, the category of Nothingness in the aesthetics of modernism acts as the embodiment of the ontological problematic nature of the incomprehensible world, a sign of its epistemological uncertainty, correlating the Absolute and the Incomprehensible with the Beautiful.

Structural evolution and stabilisation mechanism of foam fluids that contain cellulose nanofibres and cellulose nanocrystals: An experimental and theoretical study

Foam fluids are thermodynamically metastable systems, and they evolve over timescales comparable to their time of use, which makes the study of their destabilisation mechanisms crucial for many industrial applications. In our study, foams were made from fluids that contained cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs). We explored the effects of nanocelluloses and oils (n-heptane and n-dodecane) on foam stability, bubble coarsening and liquid drainage. Results show that the evolution of the bubble size is strongly slowed by the synergistic effect of CNCs and CNFs, and the structural evolution of foam is greatly impacted. The main responsible mechanism is an increase in local yield stresses due to the presence of CNCs in the foam. The jammed CNCs in foam produce a drainage delay, which makes the foam 50 % drainage time (t50%) of the experimental value deviate by up to 400 % from the classical theory value. When the bubbles coarsen and grow above a threshold size, liquid can drain out of the foam. Finally, a modified model for t50% that considers the drainage delay was proposed. The experimental results validated the proposed correlation and exhibited good reliability and predictive accuracy. The results enable us to elucidate the impact of CNCs and CNFs on the stability of foam fluids.

Broadening the Canonical Picture of EUV-driven Photoevaporation of Accretion Disks

Photoevaporation driven by hydrogen-ionizing extreme-ultraviolet (EUV) radiation profoundly shapes the lives of diverse astrophysical objects. We construct an analytical model accounting for the finite timescales of photoheating and photoionization and apply it to the dispersal of protoplanetary disks. The model yields improved estimates for the ionization, temperature, and velocity versus distance from the central source when compared to the classical picture of fully ionized and isothermal winds with temperatures ≈104 K and speeds ≈10 km s−1. In contrast to the classical picture, the photoevaporative winds take on several distinct hydrodynamical and thermochemical states depending on the central star’s EUV emission rate and spectral hardness: T Tauri stars with EUV luminosities around 1030 erg s−1 drive nonisothermal ionized disk winds at lower temperatures than the classical value if the spectrum is soft, with an average deposited energy per photoionization less than about 3.7 eV. If, however, the spectrum is hard, the winds tend to be atomic and isothermal at most disk radii. For lower EUV intensities, even with soft spectra, atomic winds can emerge beyond ∼10 au through advection. We show that these predictions are in general agreement with detailed radiation hydrodynamics calculations. The model furthermore illustrates how the energy efficiency of photoevaporation varies with the intensity and spectral hardness of the EUV illumination, as well as addressing discrepancies in the literature around the effectiveness of X-ray photoevaporation. The findings highlight the importance of the photoheating and photoionization timescales both for modeling and for understanding winds’ observed behavior.

Penerapan Permainan dalam Meningkatkan Gerak Lokomotor pada Siswa Kelas VI SD Negeri 4 Bubutan Surabaya

This study aims to improve the locomotor movement ability in grade VI SDN Bubutan 4 Surabaya with the application of games, The problem is that students in grade VI B still have difficulties in locomotive movement, In cycle 1 using the application of games such as relay games and jumping rope, data is collected through direct observation and assessment of student skills before and after the implementation of the activity, analysis shows that some students still do not show significant improvement in locomotor movement ability, In cycle 2 the game is simplified. The results of the analysis showed that the improvement of locomotor movement ability became more consistent across all groups of students. The conclusion of this study is that the application of the game method is effective in improving locomotor movement skills in grade VI B SDN Bubutan 4 Surabaya. Classroom action research (PTK) with Cycle I and Cycle II. The subject of this study is 32 students of class VI B SD Negeri 4 Bubutan, the application of the game aims to improve the locomotor motion of students in class VI B SD Negeri 4 Bubutan. From the results of the Implementation of Cycle I, students in class VI B reached a percentage of 43% and the Implementation of Cycle II reached a percentage of 87%, with this the application of the game method in improving the locomotor movement of students in class VI B has reached a classical value with a provision of 85%.

Improving the Reading Ability of Children Aged 5-6 Years Through Big Book Media at Puri Cendikia Kindergarten for the 2023/2024 Academic Year

This research aims to describe how to improve children's reading abilities at Puri Cendikia Kindergarten for the 2022/2023 school year. This research focuses more on how to improve children's reading abilities at the age of 5-6 years. This research is Classroom Action Research (PTK) where the subjects in this research are group B students from Puri Cendikia Kindergarten with a total of 8 students. The focus of this research is the reading ability of children aged 5-6 years. In this research, researchers used Big Book media to improve children's ability to read to meet the criteria desired by the researcher. In this study, data collection only used two cycles, in the first cycle the level of children's reading abilities still looked low because there were still some children's reading abilities that had not improved significantly. In cycle I with Developing As Expected (BSH) results there were 4 children or equivalent to 50%, and Very Well Developing (BSB) consisted of 1 child or equivalent to 12.5%. Apart from that, there is cycle II as a planning improvement action where from cycle I to cycle II there was an increase of 37.5% so that children who developed according to expectations (BSH) consisted of 6 children or the equivalent of 75%, and developed very well. (BSB) totaling 3 children or the equivalent of 37.5%. So with this increase, the researcher stopped his research because the researcher had obtained the correct results according to the desired classical value. However, individual scores are still not perfect and there are still children who fall below the assessment criteria.

Modern extreme value statistics for Utopian extremes. EVA (2023) Conference Data Challenge: Team Yalla

AbstractCapturing the extremal behaviour of data often requires bespoke marginal and dependence models which are grounded in rigorous asymptotic theory, and hence provide reliable extrapolation into the upper tails of the data-generating distribution. We present a modern toolbox of four methodological frameworks, motivated by classical extreme value theory, that can be used to accurately estimate extreme exceedance probabilities or the corresponding level in either a univariate or multivariate setting. Our frameworks were used to facilitate the winning contribution of Team Yalla to the EVA (2023) Conference Data Challenge, which was organised for the 13$$^\text {th}$$ th International Conference on Extreme Value Analysis. This competition comprised seven teams competing across four separate sub-challenges, with each requiring the modelling of data simulated from known, yet highly complex, statistical distributions, and extrapolation far beyond the range of the available samples in order to predict probabilities of extreme events. Data were constructed to be representative of real environmental data, sampled from the fantasy country of “Utopia”.

Nambu-Goldstone modes in magnetized T2n extra dimensions

We consider a U(1) gauge theory on M4×T4 with background magnetic fluxes. We show that a theory including arbitrary fluxes can always be studied in a theory involving only diagonal fluxes by appropriate coordinate transformations. It is found that the number of independent magnetic fluxes is equal to the rank of the classical value of the field strength matrix, rank⟨F⟩. The number of massless zero modes induced from extra components of higher-dimensional gauge field (Wilson-line scalar field) is also determined by rank⟨F⟩. We explicitly confirm that the quantum corrections due to the matter fermion to the squared mass of the Wilson-line scalar field cancel out at the one-loop level. For this purpose, we derive the fermion mass spectrum on M4×T4 with arbitrary fluxes. By taking the flux diagonal basis, creation and annihilation operators for Kaluza-Klein quantum numbers are defined appropriately. Our results are easily generalized to the case of M4×T2n(n≥3). Published by the American Physical Society 2024

Development of Problem-Based Student Worksheet Learning Media Using Geogebra to Improve Mathematical Reasoning Skills and Learning Independence

This research examined the validity, practicality, and efficacy of LKPD problem-based learning media with geogebra in promoting students' mathematical thinking and learning independence. Research and development are employed. ADDIE is this study's development model. This study involved class XI students of one of the vocational schools in Deli Serdang Regency. The average score for LKPD learning media based on problem-based learning helped by geogebra was 4.75 with a valid category. LKPD media based on problem-based learning assisted by geogebra is practical because the average score of learning implementation was 87.22%, which is good, and positive student responses averaged 88.94%, which is very positive. The average classical completeness value of students was 93.75% with a very high category, the average learning objective achievement was 89.06%, and the average student responses were 88.94%, indicating that LKPD media based on problem-based learning assisted by geogebra is effective. The developed media can improve students' mathematical reasoning and learning independence, as shown by their N-gain values of 0.48 and 0.55, respectively.

Monson’s sphere in Chinese young adult females with individual normal occlusion: a preliminary study using digital models

BackgroundThis study investigated the characteristics of Monson’s sphere in Chinese young adult females with individual normal occlusion to provide a reference for oral rehabilitation in prosthodontic and orthodontic treatments.MethodsPoints at the dental cusps and incisal edges were selected from 51 digital mandibular dental models of Chinese young adult females (aged 18–22 years) with individual normal occlusion. Monson’s spheres were fitted to the selected points based on the least-squares principle and the radii were calculated. The deviation of each selected point from its relative spherical surface was also calculated. The radii and deviations of these points were examined using conventional descriptive statistics and distributions of the most deviated points inside and outside the spheres were analyzed.ResultsThe mean radius of Monson’s sphere in Chinese young adult females was 79.60 ± 14.13 mm. The deviation of each selected point from its relative sphere surface was 0.38 ± 0.30 mm. The maximum deviations inside and outside the sphere were 0.93 ± 0.25 mm and 0.95 ± 0.30 mm, respectively. The most deviated points outside the spheres were mainly distributed at the distolingual cusps of the mandibular second permanent molars (31.37%), while those inside the spheres were mainly distributed at the mesiolingual cusps of the mandibular first permanent molars (45.10%).ConclusionsThe radius of Monson’s sphere in Chinese young adult females was smaller than the classic four-inch value suggested by Monson. Deviation was observed from all selected points to their Monson’s sphere surface, with the most deviated points distributed primarily in the molar region.

Forming Children's Independent Character through the Habituation Method in Group A Paud Satya Prawira in Academic Year 2021/2022

This study aims to describe efforts to shape children's independent character at Satya Prawira PAUD in the 2021/2022 academic year. This research focuses more on how to increase the independent character of children at the age of 4-5 years. This research is a Classroom Action Research (PTK) where the subjects in this study are group A students from PAUD Satya Prawira with a total of 10 students. The focus of this research is the independent character of children at the age of 4-5 years. In this study, researchers used a habituation method in the form of giving examples and an action that can help children's independent character to increase according to the criteria desired by the researcher. In this study for data collection only used two cycles, in which cycle I the level of children's independence was still low because there were still some children's independence had not increased significantly. In cycle I with the results of Developing as Expected (BSH) there were 3 children or equivalent to 30%, and Developing Very Well (BSB) consisted of 7 children or equivalent to 70%. In addition, there is also a cycle II as a planning improvement action which from cycle I to cycle II has increased by 10% so that children who are Developing as Expected (BSH) consist of 2 children or equivalent to 20%, and Developing Very Well (BSB) totaling 8 children or equivalent to 80%. So, with this increase, the researcher stopped his research because the researcher had obtained the right results according to the desired classical value. However, the individual scores are still less than perfect and there are still children who are below the assessment criteria.