bluuebunny/crossref_metadata_2025 huggingface dataset:
Issues and Challenges in Developing Shariah Governance and Shariah Audit in Islamic Cooperatives
Authors: Mahmud Sabri Nur Amni , Salleh Supiah , Kamaruddin Muhammad Iqmal Hisham , Shafii Zurina , Mohd Hanefah Mustafa , Zakaria Nurazalia
Published: June 2024

The development of Shariah governance and audit in Islamic Cooperatives in Malaysia is one of the primary concerns since some issues were raised throughout the process. Islamic cooperatives in Malaysia are regulated by Suruhanjaya Koperasi Malaysia (SKM), which aims to encourage the growth of cooperatives that comply with Shariah. Islamic cooperatives operate their business under supervision from SKM regarding governance and Shariah perspective. The development of Shariah governance and Shariah audit support the Shariah compliance system that already operates in most Islamic institutions. During the Shariah governance and audit process, some issues are addressed during the development, which involves guidelines, Shariah auditor competency, staff skills, and governance and Shariah audit of the cooperative sector. The study’s approach included an interview with practitioners from cooperatives, auditors, and experts in the industry. This paper aims to identify the issues and challenges of Shariah governance and Shariah audit in the Islamic cooperative sector. The study will contribute to one of the key critical elements in strengthening the Shariah governance and Shariah audit in the cooperative sector.
Pembangunan tadbir urus Syariah dan audit dalam Koperasi Islam di Malaysia merupakan salah satu kebimbangan utama memandangkan beberapa isu telah dibangkitkan sepanjang proses tersebut. Koperasi Islam di Malaysia dikawal selia oleh Suruhanjaya Koperasi Malaysia (SKM), yang bertujuan untuk menggalakkan pertumbuhan koperasi yang mematuhi Syariah. Koperasi Islam menjalankan perniagaan mereka di bawah seliaan daripada SKM berkaitan tadbir urus dan perspektif Syariah. Pembangunan tadbir urus Syariah dan audit Syariah menyokong sistem pematuhan Syariah yang telah beroperasi di kebanyakan institusi Islam. Semasa proses tadbir urus dan audit Syariah, beberapa isu ditangani semasa pembangunan, yang melibatkan garis panduan, kecekapan juruaudit Syariah, kemahiran kakitangan, dan tadbir urus serta audit Syariah sektor koperasi. Pendekatan kajian termasuk temu bual dengan pengamal daripada koperasi, juruaudit, dan pakar dalam industri. Kertas kerja ini bertujuan untuk mengenal pasti isu dan cabaran tadbir urus Syariah dan audit Syariah dalam sektor koperasi Islam. Kajian itu akan menyumbang kepada salah satu elemen kritikal utama dalam mengukuhkan tadbir urus Syariah dan audit Syariah dalam sektor koperasi.
Kesedaran Penggunaan E-Pembayaran dalam Kutipan Sumbangan di Masjid: Satu Kajian Literatur Sistematik
Authors: Mat Nor Fadilah , Atan Nur Syaheera , Idris Junainah , Azman Aza Shahnaz
Published: June 2024

Kertas kerja ini menyediakan kajian literatur sistematik yang komprehensif berkenaan kajian lepas mengenai pelaksanaan e-pembayaran dalam kutipan sumbangan di masjid. Objektif kertas kerja ini adalah untuk mensintesis secara komprehensif pemahaman mengenai i) definisi e-pembayaran, ii) teori yang digunakan untuk mengukur faktor kesedaran iii) tema faktor kesedaran dalam sorotan kajian lepas. Dengan menggunakan metodologi PRISMA, kajian telah menganalisa semula data sekunder yang dikumpul dari pangkalan data utama Scopus dan Web of Science (WoS). Hasil carian menemukan 304 artikel untuk disaring dan hanya 118 artikel dipilih untuk pengekstrakan data selepas memenuhi kriteria pemilihan melalui proses pencarian sistematik. Bagi objektif pertama, hasil kajian menjangkakan bahawa terma digitalisasi adalah definisi terbaik untuk menerangkan konsep e-pembayaran. Teori TAM dan UTAUT pula didapati paling popular dalam menerangkan kesedaran penerimaan e-pembayaran. Sementara bagi objektif ketiga hasil sorotan bersistematik telah berjaya menerbitkan 7 tema faktor kesedaran penggunaan e-pembayaran dalam pelbagai konteks. Hasil kajian dipercayai boleh membantu pembuat dasar, pengamal dan penyelidik untuk membangunkan model terbaik untuk meningkatkan kesedaran pihak berkaitan meningkakan kutipan sumbangan dengan penggunaan e-pembayaran. Akhir sekali, beberapa cadangan dan limitasi dapat dikemukakan bagi kajian di masa akan datang.
This paper provides a comprehensive systematic literature review of e-payment implementation in mosques. This paper aims to synthesize and extend the current understanding of (i) the definition of e-payment, (ii) theories used to measure awareness, and (iii) awareness themes in the previous research. Using PRISMA methodology, the study re - analysed secondary data collected from the Scopus and Web of Science (WoS) databases. The search results identified 304 articles for screening and only 118 articles were selected for data extraction after meeting the selection criteria through a systematic search process. For the first objective, the review results suggest that the term digitalization is the best definition to explain the concept of e-payments. The second objective revealed that TAM and UTAUT are found as the most popular models in describing the awareness of e-payment acceptance. While for the third objective, the systematic review has successfully derived 7 themes of awareness factors of the use of e-payment in various contexts. The results of the study are believed to help policymakers, practitioners, and researchers to develop the best model to increase the awareness of parties related to increasing donation rates with the use of e-payments. Finally, some limitations and suggestions can be made for future studies.
Influence of Palm Fruit Fibe and High Alumina Cement on Omifun Kaolin for Furnace Insulation
Authors: Onosemudiana Stephen Saturday , Olaniran Oladayo , Folorunso Davies Oladayo , Talabi Henry Kayode
Published: June 2024

Objective: This work is designed to enhance the insulating properties of Omifun kaolin from Ose Local Government of Ondo State, Nigeria for furnace insulation by reinforcing it with some additives such as high alumina cement and oil palm fruit fiber. This was aimed at developing local technology for the production of insulating bricks in such a way as to reduce the sole dependency on importations of insulating bricks to service the available furnaces in the country. Methods: Sieve analysis was performed on the Omifun kaolin. Characterization by X-ray Fluorescence (XRF), X-ray Diffraction (XRD), and Scanning Electron Microscopy/ Energy Dispersive Spectroscopy (SEM/EDS). Subsequently, the samples of kaolin reinforced with pulverized palm fruit fiber (1,2,3,4, and 5%) were prepared and tested for permeability. The sample with the best potential was further mixed with varying weight percent (3, 6, 9, 12, 15, 18, 21, and 24%) of high alumina cement, fired within 800-1200℃, and further tested for bulk density, compressive strength, thermal shock resistance (TSR), and linear expansion. Results: The characterization revealed, in the acceptable limits, the relative quantities of the desired oxides (SiO2, Al2O3, and CaO) with phases (kaolinite, quartz, and plagioclase) expected of good insulating bricks. From the samples containing fixed 3% palm fruit fiber and varying percentages (3, 6, 9, 15, 18, 21, and 24%) of high alumina cement, the sample containing 3% palm fruit fiber and 9% addition of high alumina cement exhibited the most promising qualities desired of good material for furnace insulation applications. Conclusion: The characterization techniques adopted in this study; XRD, XRF, and SEM/EDS revealed, in the acceptable limits, the relative quantities of the desired oxides (SiO2, Al2O3, and CaO) and phases (kaolinite, quartz, and plagioclase) expected of good insulating bricks are present in Omifun kaolin. With permeability of 44.69%, crushing strength of 54.09KN/cm2, linear expansion of -0.39mm, TSR of 24 cycles, and bulk density of 1.93g/cm3 at firing temperature range 800-1200℃, Omifun kaolin can compete and successfully replace imported insulating bricks.
Working Conditions of Unorganised Construction Workers in the Kumaun Himalaya Region: Case Study on Nainital District
Authors: Ram Naveen , Melkani Amit , Pande Rajnish
Published: June 2024

Purpose of the Study – To carry out a comparative investigation and analysis of the working conditions of unorganised construction workers in the rural and urban areas of the Kumaun Himalaya region, with a specific focus on the Nainital district.
Design/methodology/approach – The study is based on a descriptive research design which has used quantitative study approaches. Further, we used a multi-stage sampling technique and the sample size is determined through William Cochran’s methods for infinite population size. The study used a cross-sectional study approach to collect data from both parts of the study area and the field visit was conducted between June 2023 to December 2023. Furthermore, the interview schedule was used to collect data from the respondents.
Conclusion – The study confirmed significant differences in working conditions between rural and urban areas, with urban workers experiencing longer working days, less leisure time, and higher wages. However, daily work hours were found to be similar across both settings.
Changes in Soil Physical Properties Following Applications of Vermicompost Superimposed with Liquid Organic Fertilizer
Authors: Hermawan Bandi , Muktamar Zainal , Fahrurrozi Fahrurrozi , Setyowati Nanik , Sujatmiko Sigit , Chosin Muhammad , Putri Elsa Lolita
Published: June 2024

Soil properties play essential roles in transmitting and holding precipitation water; therefore, they determine the amount of plant-available water in the soil profile. The study aimed to compare the size distributions of Andept soil pores following four-year applications of vermicompost and liquid organic fertilizer (LOF). The experiment was done from 2016 to 2019. The five doses of vermicompost (5, 10, 15, 20, and 25 Mg ha-1) set as the main factor, supplemented with 0 and 100 percent concentrations of LOF as a sub-factor, were arranged in a split-plot design with three replicates. Results showed that adding LOF decreased slow-drainage pores significantly when combined with 10 Mg ha-1 of vermicompost. However, the pore changes by LOF were not significant when applied to other doses of vermicompost. Applying vermicompost and LOF lowered the slow-drainage pores by increasing soil organic carbon and reducing soil particle density. The findings suggest that vermicompost and LOF act as soil ameliorants to reduce water loss by drainage from soil profiles. The study highlights the importance of soil properties in determining plant-available water in the soil profile.
Increasing the Growth and Yield of Soybean Genotype in Dryland by Applying Vesicular Arbuscular Mycorrhiza (VAM) and Tricho-compost
Authors: Widiati Bibiana Rini , Idrus Muh Izzdin , Imran Andi Nur
Published: June 2024

This research aimed to examine the increase in growth and yield of soybean (Glycine max (L.) Merr) genotypes in the application of Vesicular Arbuscular Mycorrhizae (VAM) and tricho-compost in dryland. This research was conducted in the form of an experiment using a Split plot design was composed: all treatments were given NPK fertilizer at a dose of 50% of the recommended dose and 5 g of mycorrhizae (Glomus sp. + Gigaspora sp. + Acaulospora sp.). The main plot (MP) had six genotypes (G). The sub-plot (SP) was mycorrhizae +tricho-compost (T): mycorrhizae +without tricho-compost (t0), mycorrhizae +tricho-compost 50 g plant-1 (t1 ), and mycorrhizae +2tricho-compost 100 g plant-1 (t2 ). The results showed that soybean genotypes gM50Gy, gO50Gy, and gT50Gy have the stability of agronomic characteristics on the shoot dry weight, root dry weight, and soybean dry weight in the adaptation test in dryland. The treatment of tricho-compost 100 g ton-1 had the highest increased shoot dry weight, root dry weight, percentage of mycorrhizal infection, and Nitrogen (N), Phosphorus (P), and Potassium (K) uptake. The interaction of gT50Gyt2 ; gO50Gyt2  and gTt2  resulted in higher root dry weight and N, P, and K uptake than gM50Gyt2; gMt2; gOt2.
Effect of bentonite on thermal conductivity, mechanical strength and acid resistance of cement mortar
Authors: Bouksani Omar , Maissen Benhadji , Kawthar Hadja , Fattoum Kharchi , Fatiha Abba
Published: June 2024

Cement industry generates a serious problem for the environment. Its production, through the calcination of limestone rocks and the energy used, releases a significant amount of carbon dioxide, contributing to the greenhouse effect. Finding solutions to reduce the quantity of cement necessary for the manufacture of mortar can minimize energy consumption, reduce pollution and thus preserve the environment. The aim of this experimental work was to partially replace the cement with bentonite in mortars at varying percentages of 0%, 5%, 10%, 15%, 20%, 25%, and 30%. The effects of bentonite on mechanical strengths, such as compressive and flexural strengths, as well as on thermal performance by assessing the thermal conductivity coefficient were investigated. In addition, the durability performance of mortar with and without bentonite subjected to acid solutions was also evaluated by measuring the mass loss and compressive strength before and after immersion in hydrochloric and sulfuric acid solutions. The experimental results showed that the partial replacement of cement with bentonite significantly improved the thermal insulation of mortars, since the thermal conductivity decreased from 1.59 to 1.29 w/mK. However, the mechanical strengths decreased slightly as the bentonite content increased until 15% replacement. Beyond 15% replacement of cement with bentonite, the compressive and flexural strengths decrease abruptly. The durability under an acid solutions of mortar containing bentonite is enhanced. Also, depending on the environment, the mass and compressive strength losses are largest in HCL solution and are smallest in the H2SO4 solution. Finally, the durability of the mortar with bentonite is critical since water absorption increases.
Formação de professores e educação mediada pelas tecnologias
Authors: Santos Silvana Maria Aparecida Viana , Leite Verinha Alderina , Lemos Antonia Girlandia Barbosa , Matias Antonio Marcos Justino , Serpa Carlos Moacir Costa , Cardoso José Cleudo Matos , Felipe Maria Deusijane Borges de Oliveira , Silva Renata Sorah de Sousa e , Saraiva Saulo Roger Cavalcante
Published: June 2024

O estudo investigou como a formação de professores mediada por tecnologias pode ser estruturada para superar barreiras e maximizar os benefícios para o ensino e a aprendizagem. O objetivo geral foi analisar as práticas de formação de professores mediadas por tecnologias, identificando desafios e oportunidades. A metodologia adotada foi uma revisão bibliográfica qualitativa, utilizando fontes acadêmicas relevantes para a coleta de dados. Os resultados revelaram que metodologias ativas, como a sala de aula invertida, a aprendizagem baseada em projetos e a gamificação, promovem um ensino dinâmico e centrado no aluno. Programas de formação continuada mostraram-se essenciais para atualizar os docentes e integrar novas ferramentas pedagógicas. Tecnologias emergentes, como a inteligência artificial, a realidade virtual e a realidade aumentada, apresentaram potencial significativo para transformar a formação docente. No entanto, desafios como barreiras tecnológicas, resistência à mudança e falta de infraestrutura foram identificados como obstáculos. As considerações finais destacaram a importância de uma abordagem integrada, combinando aspectos teóricos, práticos e políticos, e sugeriram a necessidade de estudos sobre o impacto das tecnologias na prática docente e na aprendizagem dos alunos.
Evaluación del desempeño de mezclas asfálticas convencionales y con filler de cal hidratada expuestas a humedad en climas fríos
Authors: Apaza Gabith Sayda Quispe , Menezes Denise Balestrero , Martins Diego de Oliveira
Published: June 2024

La presencia de humedad en mezclas asfálticas promueve la pérdida de adherencia entre el ligante asfáltico y la difusión de humedad a través de la mezcla asfáltica debilita su estructura. Este problema se agrava en zonas frías de mayor gradiente térmico, donde los ciclos de congelación y descongelación generan cambios volumétricos internos que provocan fallas por fatiga térmica. El presente estudio tuvo como objetivo evaluar los efectos de los ciclos de congelación- descongelación en mezclas asfálticas saturadas, considerando la adición de filler de cal hidratada como agente reductor del daño por humedad. La metodología adoptada fue de tipo experimental correlacional y evaluó en laboratorio muestras de mezcla asfáltica con adición de filler de cal hidratada (MF) en comparación a muestras de control (MC: muestras de mezcla convencional), en condiciones secas (D) y saturadas (S) y sometiéndolas a ciclos de acondicionamiento. Las muestras fueron elaboradas usando el método de Marshall, este se utilizó también en la verificación de las propiedades físicas de cada muestra antes y después de su acondicionamiento y el ensayo de Lottman Modificado fue usado para la evaluación de la resistencia al daño por humedad adecuándose a los efectos de zona con ciclos de acondicionamiento (ciclos de congelación-descongelación: C-D) durante 1, 3 y 6 días y que incluyó el ensayo de Tracción Indirecta (TSI) para cada espécimen, según su condición de exposición. Así, se mostró que las muestras con adición de cal hidratan tuvieron baja susceptibilidad a la acción del agua y los ciclos de acondicionamiento, los resultados muestran la incidencia que tiene la humedad en la pérdida de resistencia a la tracción en las mezclas asfálticas evaluadas, indican que la fragilidad aumenta con el envejecimiento. Además, se observó que el daño por humedad en zonas altas, donde la exposición a lluvias, nevadas y heladas es muy frecuente, debe considerarse a la hora de realizar el diseño de pavimentos.
Sosyal Medyanın Seçmenlerin Siyasal Kararlarına Etkileri Üzerine Bir Etkileşim Araştırması: 14 Mayıs 2023 Cumhurbaşkanlığı Seçimleri Twitter İçerik Analizi
Authors: Gürbüz Gökhan , Sayımer İdil
Published: June 2024

Günümüzde sosyal medyanın yükselişi siyasal iletişimi ve kamusal alanı dijital boyuta taşımıştır. Küresel çapta siyasi kampanya süreçlerinin en fazla kullanılan platformlarının başında gelen Twitter, özellikle seçmenlerle doğrudan iletişim kurmak, gündem oluşturmak, siyasal hedefleri ve programları tanıtmak açısından giderek daha güçlü bir siyasal alan olarak göze çarpmaktadır. Dolayısıyla seçim dönemlerinde hem siyasal adayların hem de seçmenlerin Twitter kullanım biçimleri incelenmeye değerdir. Araştırmada seçimden önceki son bir ayı kapsamasından ötürü 15 Nisan – 14 Mayıs 2023 tarih aralığı seçilmiştir. Bu tarihler arasında en çok etkileşim alan etiketlemeler çerçevesinde toplam 110.534 Twitter (X) gönderisi analiz edilmiştir. Bu etiketlemeler adaylar için açılmış ve dolaşıma sokulmuş olan #OAnGeliyor, #SanaSöz, #TürkiyeSanaEmanet ve #MemleketMeclise başlıklarıdır. Çalışmanın sonunda etiketlemelerin; yapısal farklılıklarının bulunduğu, seçmen davranışları ile ilişkili olduğu ve seçim zamanlarında adaylar tarafından yoğun bir biçimde kullanıldığı sonucuna ulaşılmıştır. Diğer taraftan etiketlemelerin; adayların temsil gücünü arttırdığı, adaylar ile seçmenlerin politik söylemlerinin gönderilere yansıdığı ve seçimler için ön sonuç görevi gördüğü bulgularına ulaşılmıştır.
Research on the Influencing Factors of Consumers' Purchase Intention of Cultural and Creative Products of Intangible Cultural Heritage based on SOR Theory
Authors: Liu Shuang , Ma Weiwei
Published: June 2024

The purpose is to explore the design path of cultural and creative products of intangible cultural heritage from a consumer perspective. The method is based on the SOR model. By constructing a structural equation model of the influencing factors of consumer purchase intention for cultural and creative products of intangible cultural heritages, the relationship between cultural value, aesthetic value, online word-of-mouth and other stimulating factors, consumer satisfaction, and purchase intention is empirically analyzed. Conclusion: The cultural value, aesthetic value, and online reputation of cultural and creative products of intangible cultural heritage are important factors that affect consumers' purchasing intentions. They can meet consumers' needs, improve consumer satisfaction, and thus generate purchasing intentions. This method not only provides scientific basis for the design of intangible cultural and creative products, but also expands the research ideas and methods of intangible cultural heritage.
Drawback and Improvements of Current Perovskite Solar Cells
Authors: Wang Junhan
Published: June 2024

The concept of "sustainable solar cells" encompasses the dual objectives of promoting human health and advancing sustainable societal progress. Perovskite solar cells (PSCs) have garnered significant attention over the years as promising contenders, recently reaching power conversion efficiencies (PCEs) exceeding 25%. Nonetheless, a majority of the primary materials in PSC production are recognized as hazardous by multiple environmental bodies. While there have been initial efforts, both chemically and physically, to develop less toxic PSCs, the PCE of these environmentally-friendly variants remains subpar when compared to their traditional counterparts. Hence, the balance between toxicity and efficiency has emerged as a pivotal concern for the PSC market. Viewing this through a lens of sustainability, it becomes evident why PSCs have become a dominant choice for sustainable solar technology. The subsequent focus should be on addressing the limitations—mainly toxicity and stability—associated with PSCs. The toxicity inherent in PSCs is largely attributed to the inclusion of heavy metals, such as lead, and halogens in its molecular composition. Concurrently, stability issues stand as significant barriers to the large-scale manufacturing of PSCs. Thus, pinpointing the equilibrium between toxicity and efficiency is vital for the successful market integration of PSCs. Finally, potential solutions to mitigate these shortcomings will be outlined.
The Future Trend of Manganese Positive Electrode
Authors: Shi Jingzhe
Published: June 2024

The high abundance and low cost of sodium resources enabled reaserchers to pay attention and do research in the fields of smart grids and large-scale energy storage. Among them, the positive electrode material not only determines the energy density of the battery, but also directly determines the cost of the battery. Therefore, selecting suitable sodium ion electrode materials has become an important research direction at present. Among the three mainstream cathode materials currently available, polyanionic compounds with NASICON structure as the main component have become potential cathode materials for large-scale energy storage because of their high ionic conductivity, structure, and thermal stability, compared to layered transition metal oxides and Prussian blue analogues. Sodium ion batteries have attracted widespread attention and research in the fields of smart grids and large-scale energy storage due to their high abundance and low cost of sodium resources. Among them, the positive electrode material not only determines the energy density of the battery, but also directly determines the cost of the battery. Therefore, selecting suitable sodium ion electrode materials has become an important research direction at present. Among the three mainstream cathode materials currently available, polyanionic compounds with NASICON structure as the main component have become potential cathode materials for large-scale energy storage due to their high ionic conductivity, structure, and thermal stability, compared to layered transition metal oxides and Prussian blue analogues.
Technical Status and Prospect of Hydrogen Fuel Cell
Authors: Wu Di
Published: June 2024

The use of non-renewable energy leads to frequent ecological and climate problems, and the exploitation and utilization of clean energy has become the general trend of energy transformation and development in various countries. This article introduces the hydrogen fuel cell technology, its advantages and disadvantages, and its applications, and finally discusses the innovation and challenges. Firstly, this paper introduces the working principle of hydrogen fuel cell. Hydrogen fuel cells use hydrogen and oxygen to undergo Reduction-oxidation (REDOX) reactions under the action of a catalyst to produce electricity and water. The process is both efficient and emission-free, making it an ideal way to convert clean energy. Secondly, the composition of hydrogen fuel cell is introduced in this paper. Hydrogen fuel cell consists of hydrogen supply system, oxygen supply system, electrolyte membrane, anode, cathode and other components. The components work together to achieve the storage, delivery and reaction of hydrogen gas with oxygen into electricity. Then, this paper analyzes the advantages of hydrogen fuel cells. Compared with traditional internal combustion engines, hydrogen fuel cells have the advantages of zero emissions, high energy conversion efficiency, and fast charging. Additionally, hydrogen fuel cells are not subject to geographical restrictions, and can be flexibly applied to various transportation and energy fields. Finally, the application prospect of hydrogen fuel cell is prospected. Hydrogen fuel cells have been widely used in automobiles, public transportation, ships and aircraft, and remarkable results have been made. In the future, with the constant progress of technology and the decline of costs, hydrogen fuel cells will be further popularized and promoted, becoming an important part of the field of clean energy and making important contributions to the realization of sustainable development. In the future, if the market strengthens the top-level planning of hydrogen energy development, improves hydrogen production technology, speeds up component research, and improves metallurgical technology, hydrogen energy is expected to be greatly utilized. This paper provides a theoretical basis for hydrogen fuel cell research, and provides suggestions and measures for large-scale commercial use of hydrogen energy.
Research On Supermarket Management Strategies Based on Statistical Inference and Genetic Algorithm Technology
Authors: Wang Shaobin , Geng Heli , Jin Tongshu
Published: June 2024

As one of the indispensable foods in people's daily life, reasonable pricing and replenishment decisions of vegetables are crucial for merchants to achieve the business objectives of lower cost and profit maximisation. Based on this, this paper adopts the commodity information and water flow detail data of a supermarket in Qingdao City from 2020 to 2023 to study the optimal pricing strategy of merchants. The research results show that: through correlation analysis and K-means clustering analysis, there is a certain connection between the six categories of vegetables and 251 single products; through HP filter analysis and visual observation, the sales of vegetable categories and single product sales show a cyclical pattern of change in time; from the seven categories of vegetables obtained from the clustering of each of the seven categories of vegetables, a single product is selected, and through the use of logarithmic nonlinear regression model, it is found that with the increase of the cost of cost plus Pricing increases, the total number of sales decreased logarithmically; finally, through the ARIMA time series prediction model, the sales volume of the next seven days to make a prediction, and then through the genetic algorithm optimisation model, to give the superstore's optimal pricing strategy for the next week. In this paper, through a more scientific and systematic mathematical method to study and analyse the vegetable market, a dynamic and flexible pricing of vegetable commodities as well as replenishment strategies are formulated, which will help the business to continue to revitalize and achieve higher profits.
The Residue Theorem Approach to Compute Definite Integrals
Authors: Guo Youcong , Liu Jiarui
Published: June 2024

Complex analysis is a branch of mathematics that studies the properties and behaviors of functions of complex variables, where a complex variable is a quantity that has both a real part and an imaginary part. Complex analysis is important in many areas of science, including physics, engineering, and computer science. The importance of complex analysis lies in its ability to solve problems that are difficult or impossible to solve using only real variables alone. For example, because of the complicated integrals involved, many problems in fluid mechanics, electromagnetism, and quantum mechanics can be solved using complex analysis. This paper introduces an important theorem in complex analysis, which is the residue theorem. By applying the residual theorem, the trigonometric function integral and the polynomial integral exponential function integral are calculated, which simplifies the complexity and difficulty. With the help of examples, the application of the residue theorem is demonstrated. This paper contributes to extending the idea of integral calculation and facilitates the efficient solution of integral calculations in practical problems.
Research on Urban Double Innovation and Renewal Construction - A Case Study of Zhongshan District and Xigang District of Dalian City
Authors: Zhou Shouliang , Wang Zixuan
Published: June 2024

The "14th Five-Year Plan" period is an important period for China to adhere to innovation-driven development and comprehensively shape new advantages for development. It has deepened the strategic development goal of "adhering to the core position of innovation and accelerating the construction of a powerful country in science and technology". Scientific and technological development and innovation have become the key to China's future development work. With the release of the 14th Five-Year Plan for National Economic and Social Development of the People's Republic of China and the Outline of 2035 Vision Goals and the 14th Five-Year Plan for Cultural and Tourism Development of Dalian, Dalian's future development goals are clearer. That is to develop into a more tolerant, more dynamic, more humanistic care and the needs of The Times, more global influence and industrial demonstration value of the entrepreneurship and innovation center city; At the same time, we can gain experience from the regional development of Zhongshan District of Dalian City and Xigang District of Dalian City, and successfully build a demonstration base of entrepreneurship and innovation. Taking the construction of Culture corridor in Zhongshan District of Dalian City and Science and Innovation corridor in Xigang District of Dalian City as examples, this paper puts forward some methods and suggestions for the construction of double innovation and innovation in Dalian city.
Research on the Influencing Factors of the Spread of Chickenpox
Authors: Wan Hao
Published: June 2024

Chickenpox is an infectious disease that spreads and occurs extremely quickly due to the varicella-zoster virus. It not only causes respiratory infections, but also usually causes a series of complications. Although previous studies have shown that the incidence of chickenpox is related to climate change, air pollutants and vaccination, there are still many uncertain factors that can be studied. In this study, the logical regression model method was used to sort out the statistical data from several cities in China. The statistical table counted the number of patients from 2018 to 2020. Conclusion: Although chickenpox has nothing to do with school pattern, and education level, it has a strong relationship with seasons, population density, population mobility, and extreme weather. which have never appeared in previous studies, which provides some new suggestions for the etiology and prevention of chickenpox. If further medical investigation is conducted on these factors, it means that they can be inspired in future research on chickenpox prevention.
The Impacts of Combustion Reaction on the Environment
Authors: Gao Yuanqi
Published: June 2024

Combustion reaction has been widely used in many aspects that kept modern life developing at such a desirable pace. In all combustion applications, the burning of fossil fuels has the most prominent world-wide implication in today’s economic size and strength. This article provides information about fuel combustion, its development and applications in modern society, and its impacts on the environment. The essay also points out that as the most commonly-applied combustion, fossil fuel burning has been one of the culprits of many environmental problems, such as climate change and pollution. Under these conditions, some instant actions should be taken to relieve or even stop the negative impacts of fossil fuel combustion. In addition to official policies, environmental problems should also be solved and addressed with technological innovations in saving energy, which can truly help and facilitate a long-term sustainable development. Oxy-fuel is one of the advanced technologies for clean and highly efficient utilization of fossil fuels that can be used to release the adverse influence of fossil fuel combustion.
Capturing the Influence of Travel Behavior Factors on Energy Consumption - An Empirical Study
Authors: Liu Wanqi
Published: June 2024

The transportation sector is a major contributor to global energy consumption and is responsible for significant carbon emissions. Understanding the behavioral factors that influence travelers' energy choices is crucial. This study, through an examination of individual cognitive traits, explores the rationale behind energy consumption choices and their alignment with environmental objectives, providing a novel perspective on sustainable development. To investigate these dynamic relationships, a questionnaire was designed to collect data, and a multiple linear regression model was employed for statistical analysis to reveal the impact of personal preferences and habits on travelers' energy choices. The results indicate that individuals are aware of the relationship between higher carbon-emitting energy sources and lower costs, influencing their willingness to incur higher costs to transition to environmentally friendly energy sources. This willingness is also influenced by external factors such as peer recommendations, mode of transportation choices, and planning habits related to energy usage. Furthermore, the study provides policy recommendations for government interventions based on statistically significant variables to encourage cleaner energy usage behaviors. Future research in behavioral science can explore more effective intervention methods through the dissemination of energy-related information. This research contributes to the field of behavioral studies, particularly in the context of sustainable development within the transportation sector.
A method based on machine learning to help determine the availability of hydrogen energy storage system in hydropower stations
Authors: Xu Haoxiang
Published: June 2024

Nowadays, the hydrogen energy storage technologies are being developed at a constant speed. The application of this technology in hydropower stations is now being discussed. To determine whether this technology can be used in real hydropower stations to store electrical energy in order to deal with the change of wet seasons and dry seasons in rivers, a function based on machine learning can be used. The program, written in python, uses ‘0’ and ‘1’ to determine whether the system is available. Sets of data of hydropower stations are used to train the model to make it predict the result. The passage introduces the hydrogen energy storage systems, the principle of machine learning and the structure of code.
Pricing European Call Options with Visualization Based on the Binomial Model, Monte-Carlo Simulation, and Classical Black-Scholes Model
Authors: Cheng Zixuan
Published: June 2024

After the emergence of financial derivatives, pricing has been focused by a considerable number of mathematicians. With stochastic analysis and some classic probability theories, many new pricing formulas appeared in the quantitative finance field. The improvement of pricing methods of different financial securities has essentially made prices more precise and more strict, thus greatly promoting the development of modern financial markets. In this research paper, the author reviewed three significant option pricing models in mathematical finance, which are the binomial model, classical Black-Scholes model, and Monte-Carlo simulation, and applied these three models to give the price of European options. Based on the results of these three models, the author conducted some visualization work and statistical work to compare the differences of the models. Furthermore, in order to determine the most suitable model in this case, the machine learning technique is applied to classify the price data by analyzing the confusion matrices in each model.
The Time Series Forecasting for CNY-USD Exchange Rate
Authors: Zhang Xuhui
Published: June 2024

China and the United States has worsened their foreign relationship after the trade war begin in 2018. Then the following policies and treaties also strongly affect the commercial activities of both sides. These also affect the exchange rate between Chinese YUAN and US dollar. First, this research is going to explain why two important time series forecasting models, neural network model and long short-term memory model, are used to predict the future exchange rate. Then the research would divide the exchange rate data into training set and testing set, then train the models with training set and forecast the exchange rate between Chinese Yuan and US dollar by using the R studio in programming. Finally compare the mean square error and mean absolute percentage error of the model’s forecasting value and the testing set value to show which model would have the higher accuracy in predicting the currency exchange rate.
Forecast of Housing Prices in Beijing and Analysis of Influencing Factors
Authors: Liu Yuxi
Published: June 2024

Real estate is an important part of China's real economy, and housing prices are one of the basic elements in the entire real estate market. This paper analyzes the housing price data of Beijing, China, and firstly uses a multiple linear regression model to determine whether the factors that have an important impact on China's housing prices also play an effect on Beijing's housing prices. And then this paper analyzes how much each factor has an impact on Beijing's housing prices. Additionally, the ARIMA model is used to predict the trend of housing prices in Beijing in the next 10 months according to the monthly data of the past 10 years. Finally, the change point analysis method is used to study the effect of the Corona Virus Disease 2019 (COVID-19) on housing prices in Beijing. It aims to understand the operating mechanism behind housing prices and give policymakers, investors and home buyers more suggestions and instruction.
Analysis of the Observation Evidence of Different Types of AGNs
Authors: He Rentian
Published: June 2024

As a matter of fact, analysis AGNs play a crucial part in cosmology and astrophysics. With this in mind, this study will present the introduction of AGNs, their historical background, and their importance in comprehending the evolution of the universe is the first section of this research study. The next sections of the paper go into great length to describe numerous AGN types, such as quasars, Seyfert galaxies, blazars, radio galaxies, LINERs, narrow-line AGNs, and changing-look AGNs. Furthermore, it explains basic AGN ideas like supermassive black holes and accretion disks. It is stated how investigating AGNs is constrained by factors including distance, size, dust obscuration, and apparatus requirements. The summary concludes by outlining the bright future directions for AGN study, including multi-wavelength surveys, high-resolution imaging, time-domain astronomy, spectroscopic investigations, dedicated space missions, computational astrophysics, and multidisciplinary cooperation. This paper offers a thorough summary of AGNs, their properties, the difficulties in researching them, and the possibilities for future research.
Gleaning Experience from Danish Energy Transition for China’s Carbon Neutrality
Authors: Yang Wenxin
Published: June 2024

The transition towards sustainable energy is a prevailing occurrence, demanding an exchange of experiences and reciprocal learning on an international scale. Denmark, as a pioneer in the world’s green energy transition, has many years of experience in energy transition and clean energy development. China should adopt a unique approach to accomplish the target of becoming carbon neutrality by 2060 while absorbing its advanced experience based on different national conditions. Based on China's national conditions, we propose three clean energy systems and provide sone optimization strategies under the framework of ENSYSCO which is based on power-to-x technology. In this manner, we are confident that it can provide a viable alternative for attaining carbon neutrality and ensuring efficient and secure integration of sustainable energy into China's power grid.
All, One, Infinite: The Interpenetration and Opposition Between the Conceptual and Subjective Empirical Aspects of Mathematics
Authors: Heng Zeyu
Published: June 2024

The philosophical exploration of the concepts of unity and infinity has always had a significant influence on mathematicians. Hegel posits that the achievement and realization of the infinite state of completeness within the finite realm is contingent upon the use of pure intellect and conceptual frameworks, rather than relying on perceptual intuition. Similar to Hilbert's exploration of the concept of infinity in his dissertation On the Infinite, it may be seen that the actualization of infinity is unattainable in reality. Instead, the finite can only comprehend and achieve infinity via abstract and purely conceptual reasoning, rather than through any kind of perceptual experience of the physical world. Hence, the attribute of ultimate perfection characterizes the concept of "true infinity," but any attempt to attain such perfection within limited boundaries is certain to be unsuccessful. This study delves into the exploration of the historical beginnings of the concept of infinity in the field of mathematics. The concept of absolute perfection is unattainable in the real world due to its reliance on the presence of infinite entities.
Spatial Agglomeration and Influencing Factors of Urban Shadow Education under Field Perspective: A Case Study of Xi'an 's Main Urban Area
Authors: Luo Zhanfu , Bai Xue , Wang Jin
Published: June 2024

Rapidly growing shadow education not only brings the socio-economic problems of increasing students' schoolwork and families' burden, but also exacerbates the problem of educational inequality due to spatial differentiation. This study takes shadow education institutions in the main city of Xi'an as the research object, constructs the shadow education field with the help of Bourdieu's field theory, and applies GIS spatial analysis technology to quantitatively understand the multi-dimensional and multi-scale differentiation characteristics of the shadow education field and its influencing factors. The results show that: 1. the intensity of shadow education field in the main city of Xi'an presents the characteristics of core area - core edge area - periphery of the circled field differentiation on the urban scale, i.e., around the ancient city of Xi'an and the second ring road to form a high intensity of the core area between the second ring road and the second ring road for the edge of the core area, and then outward to the shadow education in decreasing trend. 2.The clustering characteristics of different types of shadow education sub-fields differ significantly. The type structure varies and is dominated by the multi-centre agglomeration structure, with significant differences in the spatial agglomeration patterns of different types of shadow education. 3.Because of the different types of shadow education institutions, their market positioning and location requirements are different, and thus the choice of their spatial layout has significant differences. From the results of the influencing factors, habitus, economic capital and cultural capital are the main factors influencing the spatial agglomeration layout of shadow education institutions, while factors such as social capital have a weaker influence on them. 4.The role of various influencing factors varies according to the types of shadow educational institutions.
Analysis of the Applications for Monte-Carlo Simulations in Real Estate Modeling, Radiation Therapy and Brachytherapy
Authors: Gu Tianyu , Zhang Yang
Published: June 2024

Monte Carlo simulation is a frequently utilized modeling technique present in PMBOK, primarily in the quantitative risk analysis process of the risk management knowledge area. It serves as one of the fundamental tools for conducting quantitative risk analysis in a project. Monte Carlo simulation can estimate project schedule or cost, as well as assist in creating a schedule plan. This study will introduce the Monte Carlo simulation regarding its historical background, derivation process, algorithms, and significant role in the fields of economics and physics. The text uses clear, concise language with passive tone and avoids biased or ornamental language. Precise technical terms are utilized, with explanations for abbreviations. The structure creates a logical flow of information with causal connections between statements, adheres to conventional academic sections, and maintains regular formatting. Additionally, the text is free from grammatical errors and follows consistent citation and footnote style. Based on the analysis, the Monte Carlo simulation method efficiently resolves cash flow randomness and uncertainty related to project investment. Financial analysts and project decision makers can be relieved from taxing mathematical calculations, and the computer can conduct numerous numerical simulation experiments within a relatively short span of time, enhancing decision-making efficiency.
Convergence Properties of the Perplex Series
Authors: Zhang Jing , Huang Xixuan
Published: June 2024

Perplex numbers is a number system similar to the complex numbers. The perplex numbers is a commutative ring with zero divisors. The purpose of this article is to determine convergence properties of the perplex series and to give the geometric series in . Also, we analyze the convergence properties of the geometric perplex series. The properties we show will provide a theoretical basis for its application. The geometric perplex series will be paid more attention in the future and may be used widely in physics.
The Analysis of the Feasibility and the Impact on the Environment of Tidal Energy Generation
Authors: Liu Rongyunyi
Published: June 2024

Today's environmental problems have triggered ozone depletion, global warming, acid rain and a host of other environmental crises, energy crisis after environmental crisis. Therefore, the development and utilization of clean and renewable energy become the only way for future economic development, is to ease the energy supply tension and an important measure to address climate change. As a renewable energy which can be exploited and utilized, tidal energy can be an important supplement of energy supply in China. But in fact, due to cost, technical level and other practical factors, researchers on the development and utilization of tidal energy prospects are still mixed. In this paper, the basic principle, energy efficiency and environmental impact of tidal power generation are analyzed and summarized based on the research results and practical application of tidal power development in recent years, the feasibility of developing tidal power as a new energy source is also discussed. Compared with conventional power generation, it can save non-renewable resources and reduce the emission of toxic and harmful substances, which has great development potential and value.