Construction Of System Research Articles

Design and Testing of a Small-Scale Composting Facility for Sheep Manure Utilizing Aeration and Thermal Treatment

Inner Mongolia has the largest sheep population among China’s provinces, resulting in the production of a substantial amount of sheep manure. If left untreated, this manure can contribute to environmental pollution. However, sheep manure serves a dual purpose: it can be both a pollutant and a valuable source of organic fertilizer. Consequently, there is an urgent need to address the environmental issues arising from manure accumulation and its unused status. In this paper, a viable solution is proposed: the conversion of manure into fertilizer through a composting unit incorporating high-temperature aerobic fermentation technology. This unit, tailored for small farms and individual farmers, integrates critical functions such as ventilation, heating, and turning. Additionally, it boasts excellent thermal insulation, enhancing composting efficiency and enabling precise control over fermentation conditions. This design mitigates heat loss and accelerates maturation, addressing common challenges in traditional composting. The design process encompassed both equipment construction and control systems, with a primary focus on compost fermentation and aeration heating. The components were carefully designed or selected based on theoretical analysis and subsequently validated using simulation software, including EDEM and Fluent. The control system seamlessly integrates a touch screen interface, PLC programming, and control circuits to manage air pumps and electric heaters in response to changes in temperature and oxygen concentration. Furthermore, it controls the motors during the recovery phase. A comprehensive performance evaluation was conducted, revealing notable improvements. Under artificially heated conditions, the maximum temperature of the compost increased by approximately 20 °C, the composting cycle was reduced by roughly 4 days, and the seed germination index (GI) rose by about 9% when compared to natural fermentation. Thus, this device significantly accelerates composting and improves fertilizer quality by increasing the decomposition rate.

AS TEORIAS SOCIOLÓGICAS CRIMINOLÓGICAS E SEUS REFLEXOS NO DIREITO PENAL: UM ESTUDO COMPARATIVO DASTEORIAS DO CONFLITO E DO CONSENSO

This work analyzes the intersection between consensus theory and conflict theory in the context of criminal law, highlighting its main characteristics and practical implications. The justification for choosing this topic lies in the need to understand how these theories influence the formulation of criminal laws and the treatment of criminals in a society marked by social inequalities. The objectives include examining the divergences and similarities between both approaches, as well as discussing their implications for criminal justice. The methodology used was a bibliographic review of fundamental works by authors such as Quinney, Zaffaroni and Foucault, aiming for an in-depth understanding of the theories. The main results indicate that, although consensus and conflict theories present opposing views on the role of criminal law, they also share similarities that can contribute to the construction of a fairer criminal system. It is concluded that integrating elements from both approaches can provide a more comprehensive understanding of social dynamics and the effectiveness of criminal laws, favoring the protection of human rights and social inclusion.

Research on the construction of campus football teaching content hierarchical system and flexible management

In response to the national requirements for the development of campus football and addressing the current imbalance in the development of campus football teaching in China, this study discusses the construction of a football teaching content hierarchical system and flexible management that aligns with China's national conditions. It also elaborates on management strategies for the implementation of categorized guidance, flexible management, and enhanced inspection and evaluation in football teaching. Based on the systematic principles of constructing a campus football teaching content hierarchical system, as well as the basic rules of football tactics and teaching practice, campus football teaching content is divided into three levels: primary, intermediate, and advanced, with ten proficiency levels. The content at each level includes corresponding basic theoretical knowledge of football, football techniques and tactics, mental health education, and physical development. When arranging the teaching content at each level, it is essential to fully consider the matching of football knowledge and tactics, and to organically integrate football knowledge, skills with physical training, and comprehensive quality education. The implementation of flexible management should be practical, proposing different requirements for football teaching in schools of different types and regions, implementing categorized guidance and management; it is necessary to strengthen institutional construction, and use inspection and evaluation as a driving force to promote the sustainable development of football teaching.

Phenotypic Diversity Analysis in the Sect. Tuberculate (Camellia L.) Population, an Endemic Taxon in China

Sect. Tuberculate Chang belongs to the genus Camellia, which is an endemic group in China and has high research value. However, the phenotypic patterns of this taxon are complex and diverse, and the phenotypic variation in key traits is still unclear. In this study, a total of 212 samples from 18 populations of sect. Tuberculate plants were studied for 30 phenotypic traits of flowers, fruits, and leaves using analysis of variance, correlation analysis, principal component analysis, and cluster analysis. The results showed the following. (1) The plants in sect. Tuberculate were rich in phenotypic trait variation and possessed rich phenotypic diversity. The differentiation of phenotypic traits mainly came from among populations, with leaves (66.804%) being the largest and flowers (53.476%) being the smallest. Qualitative traits (70.264%) were greater than quantitative traits (57.608%). (2) Correlation analyses showed close and complex relationships among the phenotypic traits of flowers, fruits, and leaves. (3) The cumulative contribution of the first 10 principal components was up to 73.49%, which screened out 12 major traits contributing to the phenotypic differences in plants of sect. Tuberculate. (4) Q-type analysis showed that they were classified into 18 taxa at a Euclidean distance of 7.5 and 11 taxa at a Euclidean distance of 10. The 18 populations were not fully clustered according to the geographic distance of the plants, and there was an overlap between some of the populations. In summary, the degree of variation in phenotypic traits among populations of sect. Tuberculate plants is high, which is affected by the climatic environment. The 12 major phenotypic traits screened can be used as the basis for the classification of sect. Tuberculate plants. There are trait overlaps among some populations, which may be affected by the stochastic influence of the geographic climate and gene flow. This study will provide important references for interspecific identification, classification system construction, genetic mechanism, germplasm resource conservation, and exploitation of plants in sect. Tuberculate.

Impact of Credit in Rural Settlements of Minas Gerais, Brazil

Objective: The objective of this study is to analyze the impact of credit from the National Agrarian Reform Program (PNRA) on the income of family plots allocated by the National Institute of Agrarian Reform (INCRA) in the state of Minas Gerais, aiming to identify the correlation between the credit provided and the income generated. Theoretical Framework: Credit programs aimed at family farming enable the development of their activities in a sustainable, regulated manner and in compliance with environmental preservation, facilitating the construction and improvement of production systems according to each producer’s needs. Method: The study uses data collected from the RADIS/UFMT Project, in agrarian reform settlements in Minas Gerais state, Brazil, were processed and systematized using the Propensity Score Matching (PSM) regression model, with the use of Stata 16® software. Results and Discussion: The most accessed credit line by the beneficiaries was the Semi-arid line. The hypothesis that credit granted by the National Agrarian Reform Program (PNRA) is positively correlated with the income of plots allocated to families settled by INCRA is confirmed, showing an approximate 19% increase in the income of plots compared to those without access to credit. That is, for every R$1.00 of credit provided to the plot, there is an approximate increase of R$0.19 in income.

Improvement of construction and technological properties of cement hardening systems for building composites

The article provides information on the formation of hardening systems of building composites (STSC) as a result of directional structure formation and the involvement of the active component of metallurgical slags. It is shown that the structures of the STSC can be represented as a consequence of formation (design and synthesis) of the structures of the particle addition system of the raw material mixture, and for more complex technologies – as a growth system. The main physico-chemical properties and characteristics of modifying additives for STSC are considered. The influence of slag additives on the main construction and technological properties of hardening systems based on man-made raw materials has been established. Special attention is paid to the kinetics of the grinding capacity of the designed hardening systems of building composites.

Construction of an Evaluation Index System for Enhancing College Students' Innovation and Entrepreneurship Abilities Based on Academic Competitions

With the rapid development of the global economy, innovation and entrepreneurship have become vital components of national competitiveness. Academic competitions, as an effective educational approach, can foster college students' innovation and entrepreneurship abilities. This paper aims to provide a reference and practical tool for innovation and entrepreneurship education in higher education by constructing an evaluation index system for enhancing college students' innovation and entrepreneurship abilities based on academic competitions.

Research on adolescents' new media literacy and its cultivation

Emphasizing the cultivation of adolescents' new media literacy and their ability to respond to the new media environment is of great significance to the growth of young people. Adolescents can enhance their learning autonomy, broaden their horizons, and meet their personalized development needs by utilizing new media in their studies and daily lives; however, new media has certain adverse effects on the construction of a systematic knowledge system and the development of reading, learning, thinking, and critical abilities in adolescents. Based on the characteristics of new media, this article analyzes the pros and cons of new media's impact on adolescents and preliminarily discusses the cultivation of adolescents' new media literacy from multiple perspectives, including the nation, society, schools, teachers, parents, and students themselves.

Construction of a Wi-Fi System with a Tethered Balloon in a Mountainous Region for the Teleoperation of Vehicular Forestry Machines

In this study, a Wi-Fi system with a tethered balloon is proposed for the teleoperation of vehicular forestry machines. This system was developed to establish a Wi-Fi communication for stable teleoperation in a timber harvesting site. This system consisted of a helium balloon, Wi-Fi nodes, a measurement system, a global navigation satellite system (GNSS) antenna, and a wind speed sensor. The measurement system included a GNSS module, an inertial measurement unit (IMU), a data logger, and an altitude sensor. While the helium balloon with the Wi-Fi system was 60 m in the air, the received signal strength indicator (RSSI) was measured by moving a Wi-Fi receiver on the ground. Another GNSS set was also utilized to collect the latitude and longitude data from the Wi-Fi receiver as it traveled. The developed Wi-Fi system with a tethered balloon can create a Wi-Fi zone of up to 1.9 ha within an average wind speed range of 2.2 m/s. It is also capable of performing the teleoperation of vehicular forestry machines with a maximum latency of 185.7 ms.

Single-cell Trajectories and Pseudo-time Analysis Reveal Additional Insights into Rheumatoid Arthritis Disease Progression

As the chicken embryo grows, its increasing metabolic demand drives the development of the cardiovascular system, enabling efficient nutrient delivery through complex molecular and structural formation. Key extracellular matrix (ECM) components, such as hyaluronic acid (HA) and collagen type I alpha 1 (COL1A1), play a crucial role in shaping the biomechanical environment of the heart, particularly the sinoatrial node (SAN). These ECM elements regulate cell adhesion, migration, and the maturation of cardiac progenitor cells (CPCs), essential for the heart's electrical conductivity and rhythmicity. Based on the hypothesis that ECM mechanical properties influence the spatial patterning of conduction-related genes, we analyzed spatial transcriptomics data from chicken hearts at different developmental stages. Collagen-related genes associated with a sturdy ECM showed an increasing trend over time, while soft ECM-related genes responsible for producing proteoglycans and breaking down collagen decreased. Although conduction-related genes did not fully align with ECM trends, intriguing patterns were observed, pointing to potential interactions between ECM remodeling and the construction of the cardiac conduction system. Our findings suggest significant ECM r7emodeling between days 4 and 7, which may influence the heart's structural and functional development.

Construction of a genome-editing system for the thermophilic actinomycete streptomyces thermodiastaticus K5 strain.

Thermophilic actinomycetes significantly contribute to the terrestrial carbon cycle via the rapid degradation of lignocellulosic polysaccharides in composts. In this study, a genome-editing system was constructed for the thermophilic actinomycetes Streptomyces thermodiastaticus K5 strain, which was isolated from compost. The genome-editing plasmid (pGEK5) harboring niccase Cas9 was derived from the high-copy plasmid pL99 and used for the K5 strain. It was found that pGEK5 could easily be lost from the transformed clone through cultivation on apramycin-free medium and spore formation, enabling its reuse for subsequent genome-editing cycles. With the aid of this plasmid, mutations were sequentially introduced to two uracil-DNA glycosylase genes (Udg1 and Udg2) and one β-glucosidase gene (Bgl1). Thus, the genome-editing system using pGEK5 enables us to start the functional modification of this thermophilic actinomycete, especially for improved conversion of lignocellulosic biomass.

A Proposed School for Traditional Building Arts & Crafts in Kalongo, Uganda

Uganda is headed for exponential growth both in its population and in its building stock. The buildings of small Ugandan market communities such as Kalongo, a remote village in the north, reflect two distinct construction systems, as contemporary building practices have turned their back on tradition. Interventions by foreign NGOs in the area have contributed to the stigmatization of local building traditions as representing underdevelopment. This proposed design project for a School for Traditional Building Arts & Crafts in Kalongo seeks to bridge the disconnect between building traditions and the growing requirement for durable, sustainable buildings. The proposal sets out the concept of an innovative way of building through the elevation of local materials and traditions on a new scale.

Current Situation and Countermeasures of Teaching Environmental Design in Colleges and Universities

This paper takes the environmental design major in colleges and universities as the research object, and analyzes the teaching status quo of the environmental design major in colleges and universities in China, and finds that there are problems such as the curriculum is out of line with the social demand, the practical teaching resources are insufficient, the structure of the teaching staff is unreasonable, and the students' innovation ability is insufficient, and so on. Aiming at these problems, this paper puts forward a series of countermeasures and suggestions, including optimizing the curriculum and teaching content, strengthening the construction of practical teaching system, improving the overall level of the teaching staff, and stimulating students' innovative potential and practical ability. The results of the study have certain theoretical reference value for promoting the reform and development of environmental design professional education in colleges and universities in China.

Innovative Strategies for Hosts in the Dissemination of China's Narrative System in the Age of Intelligent Media

In the report of the 20th National Congress of the Communist Party of China, the "second integration" emphasized the contemporary significance of excellent traditional Chinese culture, highlighting the construction of an independent narrative system based on the integration of traditional Chinese culture and local cultural practices. In today’s society, China faces challenges in the dissemination of its narrative system, such as the external shaping of cultural symbols and a relatively singular form of cultural communication. The integration of culture and tourism has become a popular topic in recent years, with tourism programs serving as a window to showcase Chinese culture. Although cultural programs and tourism programs have both seen substantial development, creating a comprehensive program that effectively integrates both remains a task requiring continuous reflection from hosts. Particularly, current tourism programs face challenges like weak cultural relevance, lack of distinctive hosting styles, and hollow content. These issues present new challenges to hosts and offer great development potential for related programs. The key topic of this paper is how hosts can leverage their expertise to expand the program’s reach or enhance its content dissemination. Through research, the paper identifies innovative approaches for hosts in cultural tourism programs, summarized into three phases: tasks to be completed in the pre-production, production, and post-production stages. The analysis covers the core content, the host’s positioning, and communication methods. The proposed innovative paths provide new perspectives and ideas for more effectively disseminating Chinese cultural symbols abroad.

Textual Analysis of China’s Environmental Policies from the Perspective of Policy Instruments

Environmental governance cannot be separated from scientific and rational policy guidelines, and content analysis of environmental governance policy texts helps to understand the characteristics of existing policies and improve policy design. Using policy bibliometric and content analysis, this study analyses the environmental governance policy texts issued by China’s central government from 2018 to 2023, constructs an analytical framework that combines types of policy instruments and environmental governance cycles, and is devoted to exploring the key hotspots, design features, and development logics of the policy system. The study finds that China’s environmental governance policy instruments show characteristics of the synergistic development of diversified regulatory instruments, but focus on the use of environmentally based policy instruments, with relatively few supply-based and demand-based policy instruments. Furthermore, they focus on the prevention of environmental pollution in advance, with relatively little attention paid to post-pollution governance and the construction of the governance guarantee system, and the use of economic instruments remains limited. Accordingly, this paper puts forward relevant policy recommendations to provide valuable reference and guidance for the future development of China’s environmental governance.

Construction of a novel mitochondrial oxidative stress-related genes prognostic system and molecular subtype characterization for breast cancer

PurposeBreast cancer (BRCA) is the most common malignant tumor among women, characterized by high incidence rates and mortality rates. Oxidative stress and immunity, particularly in relation to mitochondria, have emerged as pivotal factors in breast carcinogenesis. Nonetheless, limited research has explored the specific contribution of mitochondrial oxidative stress to the prognosis of BRCA.MethodIn this study, we conducted univariate and multivariate Cox regression analyses to pinpoint independent prognostic genes associated with mitochondrial oxidative stress (MOSRGs) and their correlation with BRCA clinical outcomes. Subsequently, we developed a robust and accurate MOS scoring system for BRCA patients based on these identified independent prognostic MOSRGs.ResultOur findings were further substantiated by immune infiltration and somatic mutation analyses, providing additional evidence that the MOS scoring system holds predictive value for clinical outcomes in patients and correlates directly with three subtypes of BRCA. In vitro experiments in the MCF7 cell and breast tissue further verified the mRNA and protein expression level of independent prognostic genes, validating the consistency of the MOS prognostic signatures in BRCA.ConclusionThis research has unveiled a novel prognostic scoring system, providing valuable insights for improving patient prognosis assessment and developing individualized treatment strategies in BRCA patients.

Construction and performance analysis of DC servo system based on operational amplifier

Abstract. The motivation for researching modelling the severe motor system is its frequent use in applications that demand accurate control of position, speed, or force. Examples include robots and CNC machines, extensively employed and advanced in modern manufacturing processes. The application field of this technology is expanding significantly due to the increasing demand for automation in modern times. In order to achieve seamless integration of the system, using Op-Amp as the central element for signal processing and control is crucial. This research aims to determine the methodology for utilising an operational amplifier (Op-Amp) to construct a model for a direct current (DC) servo motor. Additionally, the research aims to develop a control system and do circuit board simulations.The outcome of this research is to implement theoretical principles into a design model, identify the most appropriate system for this model and develop the corresponding circuit board. This study aims to incorporate a control system to regulate server motors, effectively enhancing the automation process.

Analysis of the Economic Growth Effect of the National Free Trade Port Zones

In the dynamic landscape of globalization, the pivotal role of free trade zones in catalyzing openness and international trade has gained unprecedented prominence, drawing keen governmental interest worldwide. As China deepens its commitment to reform and openness, it ambitiously outlined plans for the establishment of national pilot free trade zones and free trade ports in 2018. The grand vision was to set a gold standard for openness in the new era and bolster international competitiveness. A thorough review and analysis of existing literature on national free trade ports reveal compelling insights. Evidence strongly suggests that the construction of these ports has not only significantly propelled economic growth but also triggered a ripple effect across various sectors. Mechanistic dissection elucidates that this growth can be attributed to heightened foreign investment attraction and accelerated technological innovation. This paper contributes robust empirical evidence to the discourse on refining and advancing the construction of the free trade system, thereby offering valuable guidance for policymakers and practitioners alike.

Construction of middle-phase microemulsion system and its micro-mechanism on displacing residual oil in low-permeability porous media

Construction of middle-phase microemulsion system and its micro-mechanism on displacing residual oil in low-permeability porous media

Construction and Application of an Evaluation System for Ocean Carbon Sink Trading

Construction and Application of an Evaluation System for Ocean Carbon Sink Trading