Local Elements Research Articles

Research on the load transfer performance of large-span steel truss cable-stayed bridge structures

Since the wave is accompanied by the transfer of energy in the process of transmission, and the energy density at the node directly affects the bearing capacity and service performance of the steel truss cable-stayed bridge members and joints, this paper quantitatively studies the energy density at the key nodes of the long-span steel truss cable-stayed bridge from the perspective of the wave response of the structure. Firstly, according to the drawings of Xiangshan Bridge, a local finite element model of the steel truss cable-stayed bridge is established, and by changing the angle between the cable and the steel truss girder and the bending stiffness of the cable, the variation law of energy density at the connection node between the cable and the steel truss girder is obtained by changing the angle between the cable and the steel truss girder and the bending stiffness of the cableway. Due to the limitations of finite element wave analysis, from the perspective of theoretical analysis, this paper establishes the local scattering matrix at the node, proves the obtained law to a certain extent, and uses the return wave-light matrix method to analyze and solve the energy density at the connection node between the cable bar and the steel truss girder, and the final analytical solution is in good agreement with the numerical solution, which proves that the law obtained by numerical analysis is correct.

Constitutive modelling and wave propagation through a class of anisotropic elastic metamaterials with local rotation

Elastic metamaterials are typically periodic materials possessing unit cells endowed with engineered architecture much smaller than the typical phenomenological length scale. The development of continuum models capable of accurately representing the effects of this aforementioned architecture is extremely challenging, and hence a sparsely developed area. This paper develops a novel 2-D continuum model capable of capturing the dynamic behaviour of a class of anisotropic elastic metamaterials with local rotational elements in the long wavelength limit. A constitutive relation incorporating these local rotational effects is proposed, and ratified using a representative discrete model using linear Hookean springs and identical rigid disks. The new continuum model is used to generate a dispersion relation for harmonic plane waves propagating in an arbitrary direction, which is subsequently compared to the dispersion behaviour of the original discrete model. The general behaviour of this continuum when subjected to 2-D planar harmonic wave propagation in the anisotropic medium is then analyzed, with specific attention given to the effect of material anisotropy and wave propagation direction. This work is the first of its kind to create a new continuum model of a class of anisotropic elastic metamaterials with local rotational effects.

PERANCANGAN UI/UX PADA APLIKASI WISATA LOMBOK MENGGUNAKAN METODE USER CENTERED DESIGN

This study investigates the application of User-Centered Design (UCD) principles in the design UI/UX for the mobile tourism application, 'Wisata Lombok.' The research aims to demonstrate how UCD can significantly improve user interface (UI) and user experience (UX) in context-specific applications. The methodology employed a multi-phase approach, including user research, persona development, iterative design. Data was collected through interviews with local and tourists, online surveys with Lombok residents, and on-site observations. This information guided the creation of user personas and informed the application's feature set and design decisions. Key findings reveal that incorporating local cultural elements into the UI design enhanced user engagement. The implementation of features like maps and cultural event calendars. Usability testing was carried out using an online questionnaire using the UEQ method. The UEQ contains 26 questions which structured in the form of a semantic differential, where each word consists of two terms expressing opposite meanings. The form was distributed to 35 respondents. All of the 35 respondents, 16 identified as male and 19 as female. The age distribution indicates that 29 respondents are within the 18-35 years old range, while 6 respondents are within the 35-56 years old. The UEQ result shows that the perspicuity and efficiency scale has the highest values, 2.29 and 1.96, falling within the “Excellent” range, indicating that the respondents didn't find any difficulties in operating the user interface. The attractiveness, dependability, and novelty scale fall within the “above average” value, indicating that the user interface was based on respondent needs. The stimulation scale has the least value 0.44 which fall within “bad” value , which means that the respondents was bored cause the user interface only has a few features.

Effect of dispersoid formation on age hardening and precipitation behavior of an Al-Si-Mg(-Cu) alloy with Mn and Cr addition

In the present study, Mn and Cr elements were added to the alloy to induce the formation of the α-AlFeMnCrSi dispersoids during solution treatment. The effect of the dispersoids on subsequent age-hardening response and precipitation behavior was investigated. The results indicate that there is a partially coherent structure between the dispersoid and the α-Al matrix, but the coherence is weak. The precipitation of dispersoids resulted in accelerated age-hardening response and precipitation kinetics, but weakened peak-aged hardening effect. With the aging time increasing from 0 to 16 h, a new precipitation sequence was proposed in Mn+Cr modified Al-Si-Mg(-Cu) alloy: Supersaturated solid solution (SSSS) → GP zones (under-aged) → β'' + β' (peak-aged) → Si + β'' + β' + Mg2Si + Q + α (over-aged). Among them, the extra precipitates were heterogeneous nucleated on the dispersoids, which depended on the orientation relationship between the dispersoid and the precipitation, the interfacial energy of the dispersoid/matrix/precipitation, and the local solute element concentration. Heterogeneous precipitation of coarse particles on dispersoids resulted in the formation of precipitation-free zones (PFZ), which was mainly responsible for the weakened peak-age hardening effect. Moreover, compared to the base alloy, finer and denser precipitates were obtained in the matrix of the modified alloy, due to the increased density of dislocations induced by the dispersoids and the higher Mg supersaturation.

Modeling the service life of temporary airfield operational surfaces under multi-pass aircraft trafficking

Expeditionary Airfield (EAF) surfacing systems are designed to create temporary aircraft operating surfaces. Modeling the service life of EAF surfacing systems including the matting system, aircraft, and subgrade, has historically proven difficult, exacerbated by variability between systems and the multitude of mechanisms that can constitute failure. The study presented herein outlines the development and implementation of a performance modeling approach that includes a multi-scale scheme that accounts for local characteristics of the connection points of the EAF matting system, coupled to the global characteristics of the matting array to predict cyclic passes to failure. Finite element studies were conducted for an EAF surfacing system brickwork configuration subjected to aircraft strut loads over varying California Bearing Ratio (CBR) subgrades to calibrate a transfer function to full-scale trafficking experiments. The proposed framework is then used to predict the rate of subgrade deformation for additional lay patterns, which successfully ranked the performance of each relative to full-scale trafficking experiments. An approach is proposed to couple the rate of subgrade deformation with local finite element models to capture increasing joint damage as permanent deformation accumulates, and supplemented by a variable amplitude cycle counting and damage accumulation algorithm that yields reasonable agreement with full-scale experiments while capturing the transition in failure mechanisms at higher CBR values. The results of the study presented herein captures the propensity for end connector and subgrade failure over a range of subgrade CBRs and shows promise for a broader performance framework that can be extended to other EAF surfacing systems, aircraft types, and specific matting lay patterns.

An Innovative Technique for the Strengthening of RC Columns and Their Connections with Beams Using C-FRP ROPES

The application of the innovative C-FRP ropes for the strengthening of reinforced concrete columns is experimentally examined. Two real-scale specimens with the same geometrical characteristics and the same steel reinforcements were constructed for the needs of this investigation. The primary objective of the study is to investigate the efficacy of the use of C-FRP ropes as externally mounted reinforcement for the strengthening of deficient external columns. In this direction, (a) C-FRP ropes are applied as longitudinal reinforcement of the column for the increase in the flexural strength, (b) C-FRP ropes are applied as external confining stirrups in the critical end parts of the column for the improvement of the concrete strength and the development of local element ductility, and finally (c) C-FRP ropes are applied as external stirrups in the form of diagonal X-shaped reinforcement for the increase in the capacity of the part of the column connected with the beam (joint panel). Both specimens are tested under the same cyclic loading procedure that comprises seven steps and each step includes three full loading cycles. The maximum loads of the strengthened specimen at the three loading cycles of the seventh step were 40%, 72% and 87% higher than the corresponding ones of the unstrengthened specimen. On the other hand, the measured shear deformations of the joint panel of the pilot (unstrengthened) specimen at the sixth and the seventh steps were 43% and 44% higher than the corresponding ones of the strengthened specimen. In general, it is concluded that the strengthened column exhibited improved hysteretic response and the whole behavior was apparently improved compared to the pilot specimen without strengthening in terms of maximum loads per loading step, dissipated energy, and shear deformations of the joint panel. In particular, it is stressed that the measured shear deformations of the joint panel and strain gauge measurements have substantiated that the column and the connection panel of the strengthened specimen remain almost intact, whereas damage and eventually failure have been located in the column and the joint panel of the pilot specimen. Additionally, it is emphasized that the C-FRP ropes can easily be applied in structures with complex configuration without any geometrical restraints.

Bidirectional Transmission Mapping of Architectural Styles of Tibetan Buddhist Temples in China from the 7th to the 18th Century

Architecture is the stone book of history, and the evolution of architectural styles showcases a non-verbal history constructed through images. As an important part of China’s historical and cultural heritage, the architectural forms and styles of Tibetan Buddhist temples were initially modeled on Tang dynasty temple architecture and gradually evolved into the most significant architectural types in regions such as Tibet and Qinghai in China. Religious architecture has also played a significant role in shaping regional cultural landscapes. Existing research on Tibetan Buddhist temples is primarily focused on qualitative studies of individual temple buildings. This research takes the spatiotemporal evolution of architectural styles of Tibetan Buddhist temples as an entry point and, for the first time, employs ArcGIS technology to visualize the spatial and geographical distribution of Tibetan Buddhist temples from the 7th to the 18th century, establishing a comprehensive academic vision that encompasses both historical stratification and cross-regional spatial correlations. By analyzing the cultural symbolic features embodied in the construction styles of Tibetan Buddhist temples and the visual characteristics reflected in their decorative arts, we propose two spatiotemporal dimensions for the formation and transmission of Tibetan Buddhist temple architectural styles: “Westward Transmission” and “Eastward Diffusion”. Firstly, from the 7th to the 9th centuries, the architectural style and construction techniques of Tang dynasty Buddhist temples were transmitted westward along the Tang–Tibet ancient road, integrating with local Tibetan elements to form the Tubo architectural style, which was further refined into the “Sino–Tibetan Combined Style” with strong visual characteristics around the 13th century. Subsequently, along with the spread of Tibetan Buddhism, this temple architectural style underwent an eastward diffusion from the 13th to the 18th century, reaching regions, such as Sichuan, Qinghai, Gansu, Inner Mongolia, Hebei, and Beijing, presenting a spatial gradient from west to east in the geographical dimension. On this basis, in this research, we construct a historical evolution mapping of Tibetan Buddhist temple architectural styles based on bidirectional transmission, attempting to elucidate that the intrinsic driving forces are religious and the cultural identity that guided the bidirectional transmission mechanism of these architectural styles under the historical context of the formation and dissemination of Tibetan Buddhism from the 7th to the 18th century.

Exploring the Values of Character Education in the Riau Malay Folk Song "Bukoba Panglima Awang" and its Implementation in Middle School Literature Learning in the Merdeka Belajar Curriculum

Globalization has contributed to a decline in students' moral character, with traditional values like respect for parents, teachers, and the elderly fading. To address this, schools must prioritize character education. One effective method is incorporating local cultural elements, such as folk songs, into the curriculum. This study examines the character education values in the Riau Malay folk song "Bukoba Panglima Awang" and its implementation in literature lessons for junior high school students under the Merdeka Curriculum. Using a qualitative, descriptive approach, the research identified 19 character values in the song, including politeness, humility, obedience, religious devotion, hard work, and integrity. A key value is obedience, where children are reminded to obey their parents or face divine consequences. These values are integrated into literature learning modules for 7th-grade students, with particular emphasis on politeness, humility, obedience, and compassion. The findings suggest that traditional folk songs like "Bukoba Panglima Awang" offer a rich source of character education and can be effectively used to strengthen students' moral development within modern curricula. Further research should explore how local cultural elements can be more broadly applied to foster character education in schools across Indonesia.

Factors Influencing the Success Criteria of ICT Project Management Case Study Constructions in Mogadishu

Being a developing nation, our nation's project construction is advanced in comparison to earlier years. Therefore, the overall goal of this study is to evaluate and examine the local elements influencing the success criteria of ICT project management in the construction sectors. The purpose of this study is to evaluate the technical factors that affect the success of ICT project management in the Somali construction industry. To determine the organizational factors that affect the ICT project management success in the Somali construction industry. And to investigate the cultural factors that affect the success of ICT project management in the construction industry. The most recent study to look at environmental factors influencing the performance of ICT project management in the Somali construction industry. The report focuses on construction initiatives completed in Somalia's capital city of Mogadishu. Both interviews and questionnaires were used to gather the data. The questionnaire was completed online using Google Form, and the respondents were clients, consultants, and contractors. The researchers used practical sampling to gather 100 surveys. There are four case study companies that I have chosen as an experiment construction companies are utilized as a case study for this research project. The data from the questionnaires were analyzed using SPSS to produce the average index from the study; Dalbile construction and contracting company, Bile home repair and Construction service, Qidmad Construction Company and Gaabow Construction Company. Due to the growing technological uncertainty, the building sector is dynamic. Building projects are getting easier and more advanced today. The coordination between the project participants is what has an impact on how well construction projects execute when using the design build method of procurement. The Somali government should establish and enforce strict penalties to combat fraudulence activities, the licensing of contractors and consultants should be thoroughly scrutinized to ensure that they are qualified and have the tools necessary to perform their jobs, and the contractors should enhance their estimation methods and take into account all external factors that could affect their projects.

Identification of novel candidate predisposing genes in familial nonmedullary thyroid carcinoma implicating DNA damage repair pathways.

The genetic basis of nonsyndromic familial nonmedullary thyroid carcinoma (FNMTC) is still poorly understood, as the susceptibility genes identified so far only account for a small percentage of the genetic burden. Recently, germline mutations in DNA repair-related genes have been reported in cases with thyroid cancer. In order to clarify the genetic basis of FNMTC, 94 genes involved in hereditary cancer predisposition, including DNA repair genes, were analyzed in 48 probands from FNMTC families, through targeted next-generation sequencing (NGS). Genetic variants were selected upon bioinformatics analysis and in silico studies. Structural modeling and network analysis were also performed. In silico results of NGS data unveiled likely pathogenic germline variants in 15 families with FNMTC, in genes encoding proteins involved in DNA repair (ATM, CHEK2, ERCC2, BRCA2, ERCC4, FANCA, FANCD2, FANCF, and PALB2) and in the DICER1, FLCN, PTCH1, BUB1B, and RHBDF2 genes. Structural modeling predicted that most missense variants resulted in the disruption of networks of interactions between residues, with implications for local secondary and tertiary structure elements. Functional annotation and network analyses showed that the involved DNA repair proteins functionally interact with each other, within the same DNA repair pathway and across different pathways. MAPK activation was a common event in tumor progression. This study supports that rare germline variants in DNA repair genes may be accountable for FNMTC susceptibility, with potential future utility in patients' clinical management, and reinforces the relevance of DICER1 in disease etiology.

Menyusun Strategi Pembelajaran BIPA yang Efektif untuk Penutur Asing Tingkat Pemula

BIPA's strategy in planning teaching must involve the use of 3D animated films and e-book media because these two tools are very important to achieve learning objectives. The preparation of strategies and materials needs to be done carefully so that learning is effective. This research uses the library study method, which is a research approach carried out by examining books, literature, notes, reports and literary works that are relevant to the problem being researched. The goal is so that students can easily understand the material taught by the teacher. One way to achieve this is by elaborating on strategies and material related to elections, as well as adding local elements so that the material is not too difficult for students to understand. Therefore, strategic management and organization are essential to ensure learning is structured in the most effective and efficient way to achieve the desired goals.

Gauss Equations for Local Action-Angle Orbital Elements in Cislunar Space

To track orbits in cislunar space, predict where they will naturally move over time, and identify where unbounded trajectories come from, one may consider local action-angle orbital elements—coordinates that relate a spacecraft state to specific trajectories and exist in approximately integrable regions of the Earth–moon circular restricted three-body problem (CR3BP). As local action-angle elements are a semi-analytical analog to two-body orbital elements, the theory is extended to allow for the study of arbitrary perturbations to the dynamics. Namely, we derive Gauss equations for an arbitrary perturbing acceleration—continuous or discrete—to the CR3BP. Examples for continuous thrust and impulsive ΔV are provided in cislunar space, i.e., around Earth–moon L1,2 in the CR3BP. Strategies for instantaneous maneuver design and transfers between quasi-periodic orbits and manifolds are developed.

Ottoman Influence on Architecture: The Evolution of Spatial and Decorative Elements in the 19th Century Traditional Macedonian Architecture

Vernacular architecture of 19th-century Macedonia have undergone significant transformations, primarily influenced by Ottoman architectural systems. In this context, "vernacular houses" refer to traditional dwellings built by local communities using indigenous materials and construction techniques. This study examines how Ottoman spatial configurations and decorative elements have been incorporated into Macedonian architecture during this period, illustrating the complex interplay between external influences and local adaptations. By examining these changes, the research reveals the evolving architectural identity of Macedonia in the 19th century. The research employs various qualitative methods, including a comprehensive review of historical texts and scholarly literature related to Macedonian vernacular architecture. In addition, field surveys, photographic documentation and interviews with local experts and residents have been conducted to observe and record architectural changes. The study concludes that 19th-century Macedonian vernacular houses have experienced significant alterations due to the incorporation of Ottoman architectural principles. These changes have been evident in the spatial organization, decorative motifs, and construction methods, which have been drawn from Ottoman traditions while preserving the distinctive characteristics of the region’s vernacular architecture. This adaptive process underscores the dynamic nature of Macedonian architecture, which has evolved through a blend of local and external architectural elements.

CD28 hinge used in chimeric antigen receptor (CAR) T-cells exhibits local structure and conformational exchange amidst global disorder

T-cell therapies based on chimeric antigen receptor (CAR) targeting of a tumor-specific antigen offer hope for patients with relapsed or refractory cancers. CAR hinge and transmembrane regions link antigen recognition domains to intracellular signal transduction domains. Here, we apply biophysical methods to characterize the structure and dynamic properties of the CD28 CAR hinge (CD28H) used in an FDA-approved CD19 CAR for the treatment of B-lineage leukemia/lymphoma. By using nuclear Overhauser effect spectroscopy (NOESY), which detects even transiently occupied structural motifs, we observed otherwise elusive local structural elements amidst overall disorder in CD28H, including a conformational switch from a native β-strand to a 310-helix and polyproline II helix-like structure. These local structural motifs contribute to an overall loosely formed extended geometry that could be captured by NOESY data. All FDA-approved CARs use prolines in the hinge region, which we find in CD28, and previously in CD8α, isomerize to promote structural plasticity and dynamics. These local structural elements may function in recognition and signaling events and constrain the spacing between the transmembrane and antigen recognition domains. Our study thus demonstrates a method for detecting local and transient structure within intrinsically disordered systems and moreover, our CD28H findings may inform future CAR design.

Mediterranean Diet gastronomic experiences using olive oil and goat cheese

The present study aims to develop three food formulations, spreadable olive oil, goat cream cheese, and a cold dessert made of carob and goat cheese, using local elements of the Mediterranean diet (MD), namely, olive oil, fresh goat cheese, and carob derivatives in addition to hydrocolloids. The final products, with the best spreadability, texture and consistency, were obtained using: a) methylcellulose 6% (w/v) for the spreadable olive oil; b) Locust Bean Gum (LBG) (0.5% w/w) for goat cream cheese; and c) Goat cream cheese (43.4%), carob flour (8.7%), glucose syrup (26.1%), olive oil (14.6%), powdered goat milk (3.8%), chia seeds (0.5%), LBG (0.7%), and cinnamon for the cold dessert. Subsequently, foods were refrigerated until evaluated by a consumer panel of 101 untrained tasters aged between 15 and 49 years. All the attributes were assessed on a scale from 1 to 5. The products were well accepted by the tasters with no significant differences registered among the different age groups regarding the food attributes, except for the sweetness of the dessert. The goat cream cheese obtained the highest acceptability (4.09 ± 1.16–3.88 ± 0.86) and creaminess (4.22 ± 0.80–4.33 ± 0.65) among the youngest consumers (<30 years), while the acceptability of spreadable olive oil was evaluated with values of 3.24 ± 1.33–3.17 ± 1.14 by the same age group, indicating the need to add seasonings, as salt substitutes, to improve the attributes flavour and aroma. The results highlight the potential of the three formulations to expand the range of food products and processing strategies in the hospitality, catering, and food industry, as well as to provide alternative foods associated with the MD food pattern.

Influence of Hotel Design on Guest Experience and Satisfaction in Kenya

Purpose: The aim of the study was to assess the influence of hotel design on guest experience and satisfaction in Kenya. Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low-cost advantage as compared to field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries. Findings: The study indicated that aesthetic appeal, functionality, and comfort of hotel interiors significantly contribute to guest satisfaction. Elements such as room layout, furniture design, lighting, and color schemes can create a welcoming and relaxing atmosphere, enhancing the perceived quality of the stay. Additionally, common areas like lobbies, restaurants, and recreational facilities also impact guests' first impressions and ongoing experiences. The design must cater to diverse guest needs, offering both communal and private spaces that facilitate social interactions and personal relaxation. Moreover, incorporating local culture and unique design elements can provide a memorable and authentic experience, further boosting guest satisfaction. Sustainable and eco-friendly design practices are increasingly valued by guests, reflecting their growing environmental consciousness. Overall, a well-thought-out hotel design can significantly enhance guest experience, leading to higher satisfaction, repeat visits, and positive reviews, which are vital for the hotel's success in a competitive market. Implications to Theory, Practice and Policy: Environmental psychology theory, services cape theory and expectancy-disconfirmation theory may be used to anchor future studies on assessing the influence of hotel design on guest experience and satisfaction in Kenya. Hotels should prioritize investing in visually appealing and unique design elements, especially in common areas like lobbies. Policymakers should encourage and incentivize sustainable design practices in the hospitality industry.

Junior High School Need For Students’ Workbook Based on Local Wisdom in Merdeka Curriculum

This study aims to explore the need for students' workbooks based on local wisdom in the Merdeka Curriculum for junior high school students, particularly at SMPN 3 Air Besar. The study is motivated by the importance of local wisdom in shaping students' character and identity, as well as the need for appropriate teaching materials that can support the implementation of the Merdeka Curriculum. This study employed a survey research design to elicit information. To identify the students' needs, data was collected through questionnaires, interviews, and direct observations. The interviews were conducted with students, English teachers, and villagers to gather in-depth information about the students' needs in the materials design. The study proposes various positions for EFL teachers to perform, including visionaries, cultural mediators on a local level, intercultural educators, and role model practitioners. It offers strategies for EFL teachers to include local cultural elements into their classroom instruction, such as establishing a local culturally responsive pedagogy, cultural sensitivity and awareness, and leveraging technology and information to support teaching. Incorporating local culture into EFL teaching can benefit students by raising cultural awareness, developing cultural literacy, building intercultural competence, enhancing language learning experiences, and acquiring skills in eliciting meaning. By using a workbook that takes into account the specific requirements of the students, teachers can better address their learning needs and create a more effective and engaging learning environment. It is recommended that English language teachers utilize the workbook that is based on local wisdom, as it aligns with the Indonesian National Educational System and the current Merdeka Curriculum, which emphasizes the relation between teaching English and the learners' closest environment for meaningful language use. Overall, the study focuses on exploring the need for a supplementary workbook that integrates local wisdom and culture into English language teaching, aiming to enhance students' language proficiency and cross-cultural communication skills.

Analysis of Marketing Strategy in Facing Business Competition: Study at the Lesehan Oha Doku Restaurant in Dompu

This study aims to analyze the marketing strategy of Lesehan Oha Doku Restaurant in Dompu using a descriptive qualitative approach. Data were collected through observation and in-depth interviews at the research location with the owner, Mrs. Kartini Fauzan. The results show that Lesehan Oha Doku Restaurant successfully utilizes social media such as Facebook, Instagram, and WhatsApp to increase visibility and reach a wider consumer base. Engaging content showcasing the unique dishes and bamboo-woven restaurant concept, along with active customer interaction, has built strong relationships and increased customer loyalty. Additionally, product diversification through catering services and strong branding with the name "Lesehan Oha Doku," which reflects local cultural identity, contributes to its success. Cultural marketing that integrates local elements has proven effective in creating an authentic experience for customers. SWOT analysis reveals strengths in quality ingredients, strategic location, and effective digital marketing strategies, despite challenges in human resources and price competition. This combination of strategies has enabled Lesehan Oha Doku Restaurant to outperform competitors in the Dompu culinary market and continue to grow rapidly.

A Study on the Influencing Factors of Local Cultural Elements on Consumers Purchase Intention of Tourism Cultural and Creative Products -- Taking Nanjing as an Example

There are many kinds of cultural and creative products, which can be used not only for tourism, but also for local publicity. Taking Nanjing as an example, this paper deeply discusses how local cultural elements affect consumers willingness to buy tourism cultural and creative products. With the vigorous development of cultural tourism industry, tourism cultural and creative products, as an important carrier to spread local culture and enhance tourism experience, their market acceptance and consumers willingness to buy have become research hotspots.

A novel mesoscale transitional approach for capturing localized effects in laser powder bed fusion simulations

This paper introduces a new mesoscale approach for considering local fluctuations of powder bed characteristics in laser powder bed fusion (PBF-LB/M) simulation, bridging the gap between computational fluid dynamics (CFD) and homogenized mesoscale models. Gusarov and Sih's models for laser heat input and powder bed thermal conductivity were applied to local powder bed elements (PBE) to capture characteristics in the powder bed. Discrete element method (DEM) simulations of the recoating process generated a representative powder bed and determined local porosity values. These values informed local optical thicknesses and thermal conductivities, providing insights into heat transfer in PBF-LB/M. Single-track test simulations showed melt pool sizes matched best with homogenized parameters. The PBE-based approach resulted in smaller melt pools and revealed asymmetries in heat distribution due to varying powder bed characteristics, highlighting the need for accurate powder bed modeling. This mesoscale approach offers an efficient, time-saving alternative to CFD simulations.