Technology Facilities Research Articles

The Construction of the Curriculum System of Transportation Engineering Electromechanical Professional Group Based on Guizhou's Transportation Characteristics

The professional group of traffic engineering electromechanics has the same professional basic platform courses with the core of engineering machinery application technology, the construction of traffic engineering electromechanical related equipment and facilities as the service object, and the realization of intelligent transportation electromechanical engineering as the goal to realize the cross-border integration of technical skills of the professional courses.Under the guidance of the curriculum concept of "wide caliber + thick foundation", it meets the needs of students' personality development and professional cross-border integration.It has formed a curriculum system in which the foundation of majors is connected, the core courses are separated and the extension courses are extended, cross-boundary, integrated and inter-selected.

Research and design of urban flood control and drainage dispatching system

In order to solve the problem of frequent flood disasters in urban areas, water conservancy models such as hydrological forecast, flood simulation and operation decision-making were studied and constructed for the waterway-region-urban flood control and drainage engineering facilities, and urban flood control and drainage operation system was designed with the model as the core. The overall structure of the system is "five horizontal and two vertical". The "five horizontal" bottom up are respectively the intelligent perception layer, cloud infrastructure layer, data layer, service layer and application layer, and the "two vertical" are respectively the security system and the standard specification system. On this basis, the function customization of the system is completed to achieve comprehensive display, early warning and forecast, flood simulation, risk assessment, project scheduling and intelligent decision-making functions.

نقش تطبیق معیارهای تضمین کیفیت و اعتباردهی در تولید دانش

Quality assurance and accreditation are essential components of higher education in Afghanistan. By evaluating knowledge-producing institutions and correctly applying quality enhancement criteria, valuable steps have been taken toward scientific innovation in the country. There are specific indicators for knowledge production and quality enhancement that, together and by adhering to scientific standards, contribute to the practical production of high-quality knowledge. High-quality knowledge production is not possible without the internal coherence of these indicators and elements, which essentially requires the proper alignment of the criteria. The main question is: What is the role of aligning quality assurance and accreditation criteria in knowledge production? It appears that aligning quality assurance and accreditation criteria has a positive impact. This research utilizes a descriptive-analytical method and relies on library resources, articles, and reputable websites. Findings show that aligning quality enhancement criteria in Afghan higher education includes: strategic planning with a forward-looking perspective towards the realities and existing conditions in knowledge-producing institutions, providing effective strategies and tactics for knowledge innovation, contributing to societal development through the education of specialized and knowledgeable workforce, investing in creating an appropriate environment for scientific research by faculty members, staff, and students, as well as providing technological facilities and equipment to facilitate better learning and acquisition of knowledge. These efforts have led to a significant scientific transformation in the higher education system.

Assessment of Syngas Storage Tank Hazards Taking Account of the Domino Effect

In most countries energy needs are satisfied using fossil fuels. Fossil fuel combustion involves environmental pollution and greenhouse gas emissions. The effect of the depletion of natural resources and the growing awareness of the need to protect the environment are the reasons that clean energy and alternative energy sources have been significant research issues. One of the most important technologies enabling efficient generation of low-emission energy is the gasification process of synthesis gas production. Syngas is primarily composed of hydrogen and carbon monoxide, but depending on the feedstock, it can also contain smaller concentrations, e.g., of carbon dioxide, methane and nitrogen. Because synthesis gas contains flammable and toxic substances, it may pose hazards to humans and the environment at every stage of gas production, storage, transport or final utilization if released uncontrollably. This paper presents the results of analyses related to hazards created by an uncontrollable release of synthesis gas during storage. A failure of a syngas system may cause damage to other, subsequent technological systems and facilities located in the neighborhood and containing dangerous substances. The problem gains special significance if syngas is stored in many tanks, where a failure of one may result in damage to subsequent tanks due to the so-called domino effect. The conditions in which the domino effect may occur are analyzed and the effect occurrence probability is determined depending on the mutual location of the tanks.

Surface functionalization of exosomes for chondrocyte-targeted siRNA delivery and cartilage regeneration

Osteoarthritis (OA) is the most prevalent degenerative cartilage disease, but no effective treatment is currently available to ameliorate the dysregulation of cartilage catabolism. Cartilage degeneration is closely related to the change in the physiology of chondrocytes: for example, chondrocytes of the OA patients overexpress matrix metallopeptidase 13 (MMP13), a.k.a. collagenase 3, which damages the extracellular matrix (ECM) of the cartilage and deteriorate the disease progression. Inhibiting MMP13 has shown to be beneficial for OA treatments, but delivering therapeutics to the chondrocytes embedded in the dense cartilage is a challenge. Here, we engineered the exosome surface with the cartilage affinity peptide (CAP) through lipid insertion to give chondrocyte-targeting exosomes, CAP-Exo, which was then loaded with siRNA against MMP13 (siMMP13) in the interior to give CAP-Exo/siMMP13. Intra-articular administration of CAP-Exo/siMMP13 reduced the MMP13 level and increased collagen COL2A1 and proteoglycan in cartilage in a rat model of anterior cruciate ligament transection (ACLT)-induced OA. Proteomic analysis showed that CAP-Exo/siMMP13 treatment restored the altered protein levels in the IL-1β-treated chondrocytes. Taken together, a facile exosome engineering method enabled targeted delivery of siRNA to chondrocytes and chondrocyte-specific silencing of MMP13 to attenuate cartilage degeneration.

USING A WIRELESS SENSOR NODE TO MEASURE THE ACCELERATION OF THE SWING ROCKING MACHINE NODES

Technical diagnosis of the drive of well rod pump units (WRPU) remains an urgent task, despite the significant amount of research in this field. One of the areas of diagnosis is the measurement and control of the angular velocity of the rocking machine elements, which requires the provision of synchronous registration and control of acceleration signals at many points of the control object. The authors proposed to implement such a system based on the wireless sensor module Steval-MKSBOX1V1 of STMicroelectronics. The results of the experimental approbation of the use of the specified module showed the effectiveness of its use for solving diagnostic tasks, since the module contains a significant set of sensors in combination with a unit for processing, storing and transmitting information via a wireless Bluetooth interface. An additional advantage of using the selected measuring module is the possibility of remote reprogramming of the module's software to perform the tasks of controlling the kinematic parameters of the installation in the process of conducting research directly at the technological facility. The use of three coordinate accelerometers as part of the measuring module allows to significantly increase the reliability of control in the diagnostic process.

Перспективы применения дисперсно-наполненных композитов при полевом ремонте корпусных деталей наземных транспортно-технологических средств (обзор)

The main damages of body parts of ground transportation and technological facilities that occur during operation are presented. The main methods of repair of body parts, their advantages and disadvantages are considered. It is shown that repairs using polymer composite materials can be carried out not only within the framework of a repair enterprise, but also in the field.

INOVASI PEMANFAATAN TEKNOLOGI INFORMASI DALAM MENINGKATKAN EFISIENSI MANAJEMEN PENDIDIKAN DI MIS 05 DARUSSALAM

The utilization of information technology innovation has become a crucial focus in efforts to enhance the efficiency of educational management at MIS 05 Darussalam. The fundamental concept of educational management, particularly educational planning, serves as the cornerstone in achieving optimal educational objectives. This research aims to comprehensively analyze the utilization of information technology innovation in improving educational management efficiency and to identify challenges and obstacles encountered during the implementation of information technology at MIS 05 Darussalam. This research employs a qualitative and descriptive research approach. The data analysis technique categorizes the gathered data based on their respective categories, which will be analyzed through three qualitative data analysis steps, including data reduction, presentation, and conclusion drawing. The results of this research reveal tangible efforts to integrate information technology, especially in administrative aspects such as student data management, schedule arrangement, and attendance recording. However, several challenges, such as budget constraints, insufficient training, and technology accessibility, hinder its implementation. These challenges manifest in the form of classrooms that have not fully utilized technological facilities, encompassing both hardware maintenance and educators' understanding of effectively integrating technology. Overcoming these challenges requires strategic measures, including prudent budget allocation, continuous training, and policy development that supports effective integration. Positive implications include improved management efficiency, transparency, parental involvement, and enriched learning through E-learning.

Approaches to the Effectiveness Assessment of Territorial Development from the Perspective of ESG-Principles

Municipal territorial management is a classic mechanism of territorial administration, which involves the nomenclature operation of existing engineering and social infrastructure facilities located in a certain area of the municipality. Such a mechanism for managing territories is characterized by relatively low economic returns, due to the limited resources of the administrative apparatus of the municipality and the complexity of the proprietary property structure of the administered territories. These factors together form a situation where municipal authorities provide the process of managing territories with standard measures to maintain urban infrastructure in a functional state, with the priority of stabilizing the socio-economic situation in the territory of the municipality. To optimize the territorial management system at the present stage of development of management mechanisms of territorial administration, comprehensive systems for assessing the development of municipalities are used, a striking example is the urban environment quality index. However, this indicator can also be used to assess the predisposition of municipal territories for the implementation of development projects based on taking into account energy stability, the natural environment and the market situation within a particular city. The article describes a conceptual model for supplementing and improving the existing system for assessing the urban environment in the form of the urban environment quality index, developed by the Ministry of Construction of the Russian Federation. The purpose of the proposed mechanism for modernizing the system is to determine indicators of the stability and potential of the energy system of the municipalities under consideration, as well as their integration into the system for assessing the quality index of the urban environment from the perspective of development design, as well as assessing the development potential of the territory based on ESG-principles.

Boosting optoelectronic performance of (FA)X(MA)1-XPbI3 perovskite solar cells: Via FAI post-treatment engineering

Complex composition engineering of mixed-cations perovskite (FAxMA1-xPbI3) has recently supported rapid progress in perovskite solar cells (PSCs). Nevertheless, it is insufficient to embed and accommodate formamidinium (FA) cation into the MAPbI3 lattice structure via existing methods, leaving behind masses of FA or lead halide content and deteriorating photovoltaic performance. Herein, we present facile surface engineering via post-treated methodology, the surface of CH3NH3PbI3 (MAPbI3) films post-treated with formamidinium iodide (FAI) solution and that results get mixed-cation FAxMA1-xPbI3 perovskite films. The mixed-cation-based FAXMA1-XPbI3 perovskite with significant and large grain size, uniform and compact morphology, highly crystallization, and consequently reducing defect density of the perovskite films can be produced via the present method. It is observed that the film, post-treated with FAI-2, shows results in a very stable and highly crystalline lattice structure with attributes such as extended carrier lifetime, better electron transport, and decreased defect density. The optimized device demonstrates a promising power conversion efficiency (PCE) of 21.89%, and higher than that of the non-treated (19.08%) devices. Furthermore, the devices based on the novel FAI-post-treatment engineering exhibit significantly enhanced stability compared to non-treated devices. Therefore, this approach provides a novel methodology that offers a simple method for producing superior mixed perovskite films, potentially paving the way for the future exploitation of the boosted performance of perovskite solar cells.

Strategies for Transitioning to Sustainable E-Waste Management Systems Globally, Regionally and Nationally

The quantity of electronic waste generated globally is rising rapidly as a result of advanced technology, over reliance, and the use of electrical and electronic equipment (EEE) beyond comprehension. The rapid technological advancements has resulted in a reduced lifespan of EEE resulting in enormous amounts of waste electrical and electronic equipment (WEEE). It is well recognized that EEE contains complex metallic and non-metallic components that, if improperly managed, can seriously disrupt the environment and endanger the survival of life. The majority of industrialized nations possess advanced methods for managing e-waste, well-defined system boundaries, technological expertise, strict legislation, appropriate recycling facilities, and trade with emerging and impoverished countries. However, because of a number of issues and a dearth of pertinent policies, the situation in emerging nations is different. WEEE are handled in developing nations by using a variety of low-end methods, including product reuse, traditional landfill disposal, open burning, and rudimentary "backyard" recycling. The bulk of developing and less developed countries lack the necessary legislation, gaps in policy formulation, socioeconomic and cultural hurdles, technology, and treatment facilities. The main issues affecting Guyana's management include absence of legislation, safe options for treatment and disposal, and inadequate inventory of data. The strategic interventions that are essential for sustainable e-waste management include urban mining, embracing the concept of a circular economy, fortifying existing laws and regulations, investing in adequate facilities for handling all waste streams and coordination and cooperation among all of the key stakeholders.

Facile Approach for Metallic Precursor Engineering for Efficient Kesterite Thin-Film Solar Cells.

Kesterite-based Cu2ZnSn(S,Se)4 (CZTSSe) thin-film solar cells (TFSCs) are a promising candidate for low-cost, clean energy production owing to their environmental friendliness and the earth-abundant nature of their constituents. However, the advancement of kesterite TFSCs has been impeded by abundant defects and poor microstructure, limiting their performance potential. In this study, we present efficient Ag-alloyed CZTSSe TFSCs enabled by a facile metallic precursor engineering approach. The positioning of the Ag nanolayer in the metallic stacked precursor proves crucial in expediting the formation of Cu-Sn metal alloys during the alloying process. Specifically, Ag-included metallic precursors promote the growth of larger grains and a denser microstructure in CZTSSe thin films compared to those without Ag. Moreover, the improved uniformity of Ag, facilitated by the evaporation deposition technique, significantly suppresses the formation of detrimental defects and related defect clusters. This suppression effectively reduces nonradiative recombination, resulting in enhanced performance in kesterite TFSCs. This study not only introduces a metallic precursor engineering strategy for efficient kesterite-based TFSCs but also accelerates the development of microstructure evolution from metallic stacked precursors to metal chalcogenide compounds.

Influence of air changes per hour on hydrogen leaks in mechanically ventilated enclosures

The integration of hydrogen energy systems into nearly zero-emission buildings (nZEB) is emerging as a viable strategy to curtail greenhouse gas emissions associated with energy use in these buildings. However, the indoor or outdoor placement of certain hydrogen system components or equipment necessitates stringent safety measures, particularly in confined environments. This study aims to investigate the dynamics of hydrogen dispersion within an enclosure featuring forced ventilation, analyzing the interplay between leakage flow rates and ventilation efficiency both experimentally and numerically. To simulate hydrogen's behavior, helium gas, which shares similar physical characteristics with hydrogen, was utilized in experiments conducted at leakage flows of 4, 8, and 10 L/min, alongside a ventilation rate of 30 air changes per hour (ACH). The experiments revealed that, irrespective of the leakage rate, the oxygen concentration returned to its initial level approximately 11 min post-leakage at a ventilation rate of 30 ACH. This study also encompasses a numerical analysis to validate the experimental findings and assess the congruence between helium and hydrogen behaviors. Additionally, the impact of varying ACH rates (30, 45, 60, 75) on the concentrations of oxygen and hydrogen was quantified through numerical analysis for different hydrogen leakage rates (4, 8, 10, 20 L/min). The insights derived from this research offer valuable guidance for building facility engineers on designing ventilation systems that ensure hydrogen and oxygen concentrations remain within safe limits in hydrogen-utilizing indoor environments.

From english teachers’ perceptions: English learning demotivating factors for Indonesian University students

Students’ demotivation is a crucial issue in EFL context that has not yet received sufficient research particularly in higher education level. In Indonesia English as a foreign language context, students’ demotivation in language learning is mostly addressed based on students’ perceptions. The purpose of the current study is to examine Indonesian university EFL teachers’ perceptions of factors demotivate students to study English at university level in Indonesia. To collect the qualitative data, five teachers from English study program were involved in a semi-structured interviews with additional follow-up questions to further explore the raised concerns. These teachers were asked to understand their perceptions and experiences on what factors demotivate their students to study English. Seven demotivating factors were identified in teachers’ perception that demotivate students to study English: students’ attitudes toward English, students’ past experience, peers proficiency, teachers’ workload, classroom availability, hot and suffocating classroom, and technological facilities. This study has some implications for higher education policy makers, institutional authorities, EFL students, and EFL teachers in particular.

From Constraints to Control: The French Language Classroom in Multilingual Nigeria

There are several issues associated with the teaching and learning of French Language in an Anglophone environment like Nigeria. For effective `interaction with the neighbouring countries, Nigerian citizens need the knowledge of French language. Nigeria is an Anglophone country that is surrounded by francophone countries. French Language teachers face a lot of issues while carrying out their day to day activities in the classroom. Some of them include mother tongue interference, lack of use of instructional materials, challenges of the modern technological facilities, confusion of the target French Language, hostile environmental issues, psychological issues, teachers’ personal issues and that of the learners etc. All these issues seem to affect the learning processes in the French Language classrooms. All the above constraints contribute to the poor performance of French language in Nigerian schools; this has led to poor academic achievement of students in French language which has spilled over to poor performance of students in both internal and external examinations.

The Origin and Architectural and Technological Characteristics and Opportunities for the Reuse of Portugal’s EPAC Silo Network

Portugal’s EPAC (Empresa Pública do Abastecimiento dos Cereais) silo network, initially planned in the 1930s but constructed and utilised primarily in the 1970s, consisted of 31 silos with a total capacity of 841,100 t. The network’s usage declined, however, due to market liberalisation and Portugal’s accession to the European Economic Community in 1985. This study focuses on adapting a methodology to inventory and analyse the 31 silos in the EPAC network, considering their general features, construction, technological facilities, and socioeconomic aspects. The silos are situated in 30 cities and towns, predominantly in the country’s key grain-growing regions, particularly the Alentejo region. While there are variations in design and construction, most EPAC silos contain two or three rows of circular reinforced concrete cells and use the spaces between cells for storage. Their capacities range from 6000 to 35,000 t. Some are inland grain reception and storage silos, while others are larger-capacity port silos designed to unload grain rapidly onto ships using mechanical or pneumatic unloaders. These structures are a significant part of Portugal’s agro-industrial heritage and have, in some cases, been repurposed as museums or event venues. Compared to other agro-industrial buildings, silos pose unique conversion challenges due to their height and design complexities. Examples of successful reuse in countries like Spain and Italy may provide insights for potential silo projects in Portugal. However, analysis suggests that such proposals and similar initiatives may be viable only in the more highly populated towns.

Thermally Engineered Ferric Yolk‐Shells for Vaginal Secretion Based Cervical Cancer Screening

AbstractEngineering of materials is crucial for the advanced detection of bio‐molecules, particularly in laser desorption/ionization mass spectrometry (LDI‐MS). However, effective screening with enhanced LDI performance remains challenging due to the lack of engineered substrate materials. Herein, thermally engineered ferric yolk‐shells are designed for enhanced metabolic screening of cervical cancer (CC) using vaginal secretion. A facile thermal engineering strategy is developed to prepare amorphous ferric yolk‐shells with integrated properties. Notably, the amorphous mesoporous yolk‐shells offer signal amplification up to orders of magnitude in LDI‐MS for standard metabolites and diverse bio‐samples. High‐performance CC screening (including identification of human papillomavirus (HPV) infection, high‐grade squamous intraepithelial lesion (HSIL), and CC) is achieved, with the areas under the curve of 0.842–0.963. Finally, a metabolic panel for CC screening, covering the stages of HPV, HSIL, and CC, is established. This work elucidates the LDI‐MS mechanism for enhanced metabolic detection and highlights potential applications in cancer screening.

KINERJA SISTEM AGRIBISNIS USAHA PENGGEMUKAN SAPI DI DESA ADIREJO KECAMATAN TERBANGGI BESAR KABUPATEN LAMPUNG TENGAH (STUDI KASUS DI PT INDO PRIMA BEEF)

This study aims to analyze the performance of the agribusiness system of the beef cattle fattening business at PT Indo Prima Beef. The research method used is the case study method, located at PT Indo Prima Beef, Terbanggi Besar District of Central Lampung Regency. Data were collected in November-December 2022. Data were analyzed using qualitative and quantitative descriptive analysis. The results showed that the performance of the production facilities supply subsystem was good, as analyzed by the agribusiness index analysis and six right. However, there are still insufficiencies, such as locations close to settlements, feed is not in the right place, and labor is not in the right type, quality, and quantity. The performance of the cultivation subsystem is suitable for cultivation because it has an R/C ratio value of >1, but currently, the company has not conducted mating with artificial insemination. The performance of the marketing subsystem is good as analyzed by the agribusiness index and marketing mix analysis (4P). Beef cattle marketing channels are large traders (abattoirs), retailers, and consumers. The performance of the supporting service subsystem is good, the services utilized by PT Indo Prima Beef are financial institutions, research institutions, government policies, transportation facilities, communication and information technology facilities, and supply stores for production facilities. Overall, the performance of the agribusiness system at PT Indo Prima Beef has been running well with a weighted agribusiness index of 81.51%. Keywords: Agribusiness index, agribusiness system, beef cattle.

Provision and Utilization of Physical Resources for Effective Teaching and Learning Effectiveness in Public Universities in Rivers State

The paper explores the role of physical resources in effective teaching and learning in public universities in Rivers State. It emphasizes the importance of managing resources such as money, computers, teaching technology, and internet facilities to achieve educational goals. The paper is based on Wernerfelt's Resource-Based Theory, which suggests that organizations can achieve a sustainable competitive advantage through strategic and efficient use of physical resources. The study concludes that effective provision and utilization of physical resources are crucial for the success of teaching and learning in public universities. It suggests that a multifaceted approach, including infrastructure development, technological integration, library enrichment, and accommodation considerations, can create an environment conducive to academic excellence and a holistic learning experience. The paper also suggests that the state government should establish mechanisms to improve transparency and accountability in the use of physical resources to ensure efficient allocation of funds towards educational priorities.

Developing a profile website for mosque Qori and Imam as a medium for Da'wah

Information technology is getting faster and more advanced. Many activities utilize information technology in helping a job. Currently, information media is not only through print media but there are already media that utilize information technology to be able to reach the wider community. The emergence of websites has a positive impact on getting information widely and can be accessed anytime and anywhere. This provides the best solution for community service partners, namely Al-Barra Studio located in Malang City. Al-Barra Studio is engaged in video content, namely making video recordings for mosque Qori and Imam later people who are interested in using the services of mosque Qori or Imam can contact Al-Barra Studio. The development of this website uses parallel development with the help of using the concept of Custom Management System in the form of WordPress. It is hoped that the presence of this website can help in promotional media from Al-Barra Studio so that it can be known by the public at large and as a media for da'wah through information technology facilities.