Supplier Performance Research Articles

Optimization stability and performance of the TPS storage ring dipole magnet power supply

This article focuses on the current status of the dipole magnet power supply (DMPS) and improvement in the Taiwan Photon Source (TPS) storage ring. The DMPS provides a stable and precise magnetic field for the storage ring operation. Appropriate wiring methods are employed to minimize magnetic field interference across the entire TPS area to meet the demands of high-energy output and overcome the challenges of operating at high currents. The target energy is set at 850 V and 750 A, utilizing a single-pole switching voltage regulator as a high-precision constant current source output structure. The system incorporates a closed control loop that uses the Direct Current Current Transducer (DCCT) to provide current signal feedback to the system. FPGA (Field-Programmable Gate Array) calculates PID (Proportional-Integral-Derivative) compensation values, generating a 2.1 kHz pulse width modulation (PWM) signal to regulate the output current. At the same time, insulated gate bipolar transistor (IGBT) modules are switching components. However, even after several years of practical operation, the stability and performance of the DMPS in the storage ring still require improvements. To enhance long-term output current stability and address peripheral issues, the current TPS utilizes the Beam Orbit Feedback (FOFB) system to suppress and fine-tune the magnetic field and compensate for the impact of temperature drift on the DMPS's output current. This improvement ensures a more stable circulation of the photon beam within the storage ring. By optimizing the temperature control circuit of the main control card, the long-term output current stability has been successfully enhanced to within ± 10 ppm. Simultaneously, the FOFB system reduces uncertainties in adjusting the X-axis beam position, improving beam stability and quality. Furthermore, relevant protective measures have been implemented to ensure robust system operation. Ultimately, these improvement measures have successfully met TPS's stringent requirements for the DMPS, enabling the synchrotron accelerator light source to operate at higher performance levels and fostering advanced scientific research. The results of these upgrades underscore the success of the power supply enhancements, making significant contributions to the overall improvement of the Taiwan Photon Source facility.

Economic dynamics of agri‐food supply chains at a macrolevel

AbstractThis paper employs a comprehensive methodology that integrates demand and supply elasticities, performance metrics, and data envelopment analysis to analyze agri‐food supply chains at a macroeconomic level. It utilizes data from a global sample of 53 countries spanning the years 2000 to 2019. The findings from various levels of analysis reveal several key insights: first, Australia or Cameroon should allocate all their food resources to enhance the capacity utilization of their Food Supply Chains (FSC). Second, Ghana or New Zealand may concentrate 100% of their resources on improving the Responsiveness of their FSC. Third, Switzerland, Turkey, and the United States should allocate 100% of their food resources to adjust resource allocation within their FSC. Fourth, for countries like Costa Rica and Canada, the allocation should be 19% to capacity utilization and 81% to resource allocation. Fifth, countries such as Cyprus, the Dominican Republic, Ecuador, and El Salvador should prioritize 12% of inputs for resilience and allocate the remaining 88% to resource allocation. Sixth, for countries like Nicaragua, Niger, Nigeria, Russia, South Korea, Serbia, Senegal, and Singapore, the allocation should be 28% of inputs to responsiveness, with the majority, 72%, directed to resource allocation. Sixth, Nigeria, Ethiopia, and Ghana have better performance across critical variables. This study introduces an innovative framework that facilitates the interaction of agri‐food supply chains with various macroeconomic variables, including GDP, inflation, corruption, food security, and nutrition, opening new avenues for a holistic understanding of these systems.

Analysis of the supply of the agricultural sector in Ecuador during the COVID-19 pandemic, 2018-2021

The purpose of this research is the economic estimate that was presented in the supply of the agricultural sector due to COVID-19. The agri-food chains maintained their activities since their products are of great importance. Benefits were estimated for the farmer, since the prices of inputs and agrochemical products decreased considerably, reducing production costs, during the period from January 2018 to April 2021, through the application of a Linear Regression Model with polynomial trend. Finally, the study has an approach based on the supply performance of the agricultural sector during the period of confinement caused by the COVID-19 pandemic, and at the same time recognize the positive or negative economic impact that the production and marketing of the sector has achieved in recent times.

IVPF-AHP integrated VIKOR methodology in supplier selection of three-dimensional (3D) printers

Complex geometries, fine details, and various designs that are difficult to create using traditional methods can easily be turned into a tangible object with Three-Dimensional (3D) printers. 3D printers have advantages such as providing design flexibility, obtaining prototypes in the shortest possible time, allowing for personalization, and reducing waste through the use of advanced technology. These advantages emphasize the significance of 3D printers in a sustainable production model. The widespread usage of 3D printers leads to increased efficiency and cost reduction in production. When the literature is examined, it is observed that there are limited studies on the evaluation of supplier performances for company using 3D printers. The aim of this study is to address 3D printers, which are highly significant for sustainable production, and to reveal the criteria that companies utilizing these printers need to consider for determining their suppliers. As a result of the literature review and expert interviews, a model has been developed that gathers the criteria to be considered for supplier selection, which is an important cost factor for companies involved in designing and producing 3D printers under five main and 18 sub-criteria. The importance weights of the criteria have been determined using the Interval Valued Pythagorean Fuzzy Analytic Hierarchy Process (IVPF-AHP) method, and the most suitable supplier among alternative suppliers has been selected using the Vise Kriterijumska Optimizacija I Kompromisno Resenje (VIKOR) method. Finally, the supplier scores have been statistically analyzed to show the validation of the results of the proposed method. According to the results, it has been concluded that for company using 3D printers, quality and technical service criteria are more important in the supplier selection. Additionally, cost of the material/equipment, product price and easy maintenance criteria also play a critical role in the supplier selection of 3D printer.

Strategic pathways to achieve Sustainable Development Goal 12 through Industry 4.0: Moderating role of institutional pressure

AbstractEmerging economies, at the vanguard of extensive resource depletion and limited environmental stewardship, are worst‐hit by climate change events, necessitating an extensive investigation of the relevance of I4.0 in attaining sustainable consumption and production patterns. This study focuses on Sustainable Production and Consumption (SDG12) and investigates how the implementation of I4.0 can contribute to the adoption of circular economy practices (CEPs) to incorporate elements of sustainable consumption and procurement into supply chains. Based on dynamic capabilities theory, institutional pressure, and the triple‐bottom‐line perspective, this study proposes an overarching research framework that presents the synergistic convergence of dynamic capabilities, I4.0, and the circular economy to achieve SDG12. This framework is empirically validated through a survey‐based, cross‐sectional research design by utilizing conditional process modeling. This study employed purposive sampling where respondents constituted 480 industry practitioners and professionals in digital supply chain and operations management from manufacturing firms based in the Baddi and Alwar districts in India. The findings demonstrate that I4.0 and CEPs sequentially mediate the impact of dynamic capabilities on SDG12, while mimetic pressure strengthens the impact of exploitation‐oriented strategy on SDG12.

Mathematical simulation of duration and frequency of water consumption by various water dispensers

Water flow rates calculated by using deterministic models and methods do not describe the real variability in the water supply operation. This problem can be solved by mathematical simulation. The stochastic nature of the water consumption process implies involves random variables with certain distribution laws describing the main process components, namely intensity, duration and frequency.This paper discusses the mathematical simulation of the duration and frequency of water consumption by the most common types of water dispensers (kitchen sink and bathtub faucets (shower cubicle), toilet bowl with flush tank, washing machine and dishwasher).Purpose: The aim of this work is to evaluate and substantiate theoretical laws of the water consumption by the most common types of water dispensers as well as the frequency (probability) of their daily use.Research findings: The duration and frequency are determined for water consumed by various water dispensers using water supply systems of buildings. The empirical data are analyzed. Mathematical simulation method is proposed and justified for the water consumption process.

Minimization of noise of the precision cooling system in the dynamic mode of the electronic apparatus

The design of a floor-standing telecommunication cabinet is considered. Air movement inside the cabinet is carried out in the vertical direction due to the simultaneous operation of supply and exhaust ventilation units. The reasons for the increased noise in the dynamic mode of operation are analyzed. The cabinet design is regarded as a mechanical and acoustic resonator with a heat-sensitive element that requires precision cooling. Constant airflow ensures constant element temperature. When the thermal power changes in a dynamic mode of operation, a change in the performance of ventilation units is required. This explains the occurrence of various resonances in the structure and, as a result, increased noise. Airflow consistency can be achieved using alternative operating modes of the supply and exhaust ventilation units. Analytically, families of isothermal supply voltage curves of ventilation units for laminar air movement have been constructed. The noise level's mathematical dependence on the fans' supply voltage is compiled, considering the resonances in the cabinet structure. Noise characteristics corresponding to isothermal voltage curves have characteristic minima. The transition between the isothermal supply voltage curves along the minimum noise trajectory controls the ventilation units. This method's possibility of minimizing noise has been confirmed analytically and experimentally. Keywords: electronic device, heat-sensitive element, ventilation unit, air flow, dynamic mode, isothermal stress curve, resonance, minimization, trajectory, noise.

Compromise in hard times? The impact of deglobalization on corporate social responsibility in the US–China supply chain

AbstractThis study examines the effect of the US–China trade tensions on the corporate social responsibility (CSR) performance of the Chinese suppliers most affected by the 2018 US tariff surges. Using a difference‐in‐differences approach, we find that Chinese suppliers with direct US corporate customers experience a significant decline in CSR performance, compared with their peers without direct US corporate customers. We also show that the adverse effect of tariff surges on Chinese suppliers’ CSR performance is concentrated among those with a strong cost leadership strategy. However, the CSR performance of Chinese suppliers that have direct US corporate customers with high CSR awareness is not affected by the tariff surges. Further analyses reveal that the negative effects of the trade tensions on CSR performance are felt most strongly by the employees of Chinese suppliers. Taken together, despite the challenges posed by the deglobalization wave to the diffusion of CSR across global supply chains, the increasing demand for CSR involvement from US corporate customers can exert significant pressure on Chinese suppliers’ CSR performance.

Management of Sports Public Services in Ganzi Prefecture

Purpose – The aim of this study is to analyze the role of Service Quality (SVQ) and Service Demand (SVD) as balancing indicators in the Supply Performance (SPP) generated by Sports Public Supply Subject (SPS).
 
 Design/methodology/approach – A survey was conducted on 790 volunteers participating in sports public services in Ganzi Prefecture. We constructed a structural equation model using AMOS and analyzed the direct and indirect relationships.
 
 Findings – The research results found that there is a relationship between SPS and SVD, SPS and SVQ, SPS and SPP, SVD and SPP, SVQ and SPP, and SVD and SVQ. The research results revealed that SVD plays a mediating role between SPS and SPP, SVQ plays a mediating role between SPS and SPP, and SVD and SVQ successively mediate the relationship between SPS and SPP.
 
 Research limitations/implications – The chain mediated effect provides various theoretical significance for the direct and indirect impact on the supply performance of sports public services.
 
 Practical implications – From the perspective of improving the performance of sports public services, it has practical significance for the managers of service providers. Meanwhile, this study also contributes to improving relevant policy.
 
 Originality/value –The innovation of this study lies in proposing Service Quality (SVQ) and Service Demand (SVD) as continuous mediators, which have a direct and indirect impact on Supply Performance (SPP).

Supplier–customer cultural similarity and supplier performance

Using a corporate culture measure based on the textual analysis of the Q&A section of earnings conference calls, we document robust evidence that similar corporate cultural values between supply chain partners improve the financial performance of suppliers. Consistent with the view that supplier–customer cultural similarity facilitates communication, promotes altruistic attitudes, and builds trust between trading partners, we find that culturally similar suppliers experience higher cost efficiency, fewer problems with underinvestment, and better innovation performance. Our results also indicate that cultural similarity benefits customers, although to a lesser extent. Overall, our study sheds new light on how inter-firm cultural similarity influences firm performance along the supply chain.

A Constructive Use of ChatGPT in the Classroom: An Empirical Study

ChatGPT, launched on November 30, 2022, has been adopted by the industries and academia alike. Students have started using ChatGPT for classroom assignments. In the search for the use of this tool for constructive purposes, the professor of a graduate class (MBA) on supply chain and operations management decided to require students to use ChatGPT to first generate some material for their term papers. Typically, ChatGPT generates one to two pages of original material for the student who is not well-trained in using it, which was the case for the students in this class. Then, the students were asked to use the ChatGPT-generated material as a guide to writing a 10-page long paper with new references and citations added. A comparative study is conducted to determine the usefulness of ChatGPT on this project. The preliminary results indicate that students found ChatGPT useful in generating their own papers. Meanwhile, our analysis shows beginners of ChatGPT have limited capacity to generate high-quality content based on ChatGPT. Also, text mining is conducted to compare the readability and information density of ChatGPT-generated content and students-generated content.

Review of Power Supply and Distribution Construction Technology for Highway Electromechanical Engineering

In recent years, China has made significant progress in the construction of highways, resulting in an improvedhighway network that has provided robust support for economic and social development. However, the rapid expansion of highway construction, power supply, and distribution has led to several challenges in mechanical and electrical engineering technology. Ensuring the safe, stable, and cost-effective operation of the power supply and distribution system to meet the diverse requirements of highway operations has become a pressing issue. This article takes an example of a highway electromechanical engineering power supply and distribution construction project to provide insight into the construction process of highway electromechanical engineering power supply and distribution technology.

Customer bargaining power and supplier profitability: the moderating role of product market overlap

PurposeResearch on the relationship between customer bargaining power and supplier performance in supplier–customer relationships has flourished in recent decades. This study aims to empirically investigate whether product market overlap (PMO) in a supply chain moderates the effect of customer bargaining power on supplier profitability.Design/methodology/approachThis study uses large-scale secondary data from multiple databases. Econometric panel data techniques are used to test the hypotheses.FindingsThe results show that PMO in a supplier–customer relationship and PMO in supplier–supplier relationships both exacerbate the negative effect of the bargaining power of customers on supplier profitability.Originality/valueThis study contributes to the field of supply chain management. This study brings new insights into the ongoing debate surrounding the relationship between customer bargaining power and supplier profitability. The study also contributes to the literature on supply chain networks by showing the impact of indirect supply chain relationships.

On supplier resilience: How supplier performance, disruption frequency, and disruption duration are interrelated

Supply chain disruptions have a well-documented detrimental impact on firm performance, and recent crises have reaffirmed this effect. While the relationship between a supplier's overall performance and the frequency and duration of supply chain disruptions is often suggested, it lacks substantial empirical evidence. We conducted three comprehensive empirical analyses using panel data involving 352 suppliers to investigate the relationship between supplier performance and supply chain disruptions. Our findings indicate a negative correlation between supplier performance and the frequency and duration of disruptions, that is, poorly performing suppliers are associated with more frequent and longer disruptions. Furthermore, disruption intensity (disruption frequency × disruption duration) exacerbates the negative impact on performance. We find that disruptions have a milder negative performance effect when they emanate from suppliers that have a history as “good performers” compared to “poor performers.” A supplementary analysis shows that disruptions notably affect supplier quality. This study bears significance for practitioners and contributes to the literature on supplier resilience. Our analyses highlight that supplier performance is not only an important predictor for the occurrence of supply chain disruptions but also mitigates (i.e., moderates) the negative effects in case they occur.

O2O 플랫폼 품질이 자영업자의 디지털 전환에 미치는 영향

Purpose - With the increase of non-face-to-face activities due to the spread of COVID-19, O2O industry has grown rapidly which reduces contact points between suppliers and consumers. O2O platform is now recognized as an indispensable channel of distribution, but the voice is getting louder that it is necessary to check how it contributes to the performance of suppliers or how its fee system or contract terms affects the expansion of O2O industry as the leading companies tend to monopolize the market. Design/methodology/approach - In this study, the scope was limited to the restaurant industry in which transactions are the most active among the O2O industry and a regression analysis was done on 775 businesses that had used guarantor service from the Seoul Credit Guarantee Foundation. Findings - Analysis on the impact of O2O platform system, information, and service quality on the business performance of the sole proprietors revealed that the system quality represented by ease of use and the information quality determined by level of timely, accurate and reliable information provided to the consumers have a statistically significant effect on the improvement of business performance. In addition, the effect of business performance on the loyalty measured by the likelihood of users continuing to use the service as well as recommending it to others was moderated by the satisfaction with contract terms, not by the fee system. Research implications or Originality - Although the number of O2O platform providers has increased manyfold, the membership rate is no more than 20%, which means that the small business owners are still struggling with digital transformation. In order for the O2O industry, which is now commonplace, to form a healthy ecosystem that satisfies both suppliers and consumers, the standard contract guidelines that are acceptable to both parties must be established and the O2O providers must offer services that help suppliers to improve performance.

Effects of partial demand uncertainty reduction on private equity financing in small and medium-sized enterprises: A supply chain perspective.

The effect of demand uncertainty reduction (DUR) on supply chain management has received tremendous attention. From a financial perspective, studying the impact of DUR is equally significant. This study explores the relationship between DUR and private equity (PE) financing in retail enterprises within a supply chain, which comprises a dominant supplier and a subordinate retailer. This article establishes decision models for a retailer backed by PE under three market demand conditions: range, mean, and range with mean. The study further investigates the impact of partial demand uncertainty reduction (PDUR) on the retailer and PE through comparative analysis of these scenarios. To address incomplete market demand information during the decision-making process, the study employs the minimax regret criterion to construct and solve the model. An intriguing finding of this study is that contrary to intuition, PDUR not only fails to promote PE but also reduces the retailer's willingness to finance and decreases the asset size for both the retailer and PE. In addition, the better the growth potential for the retail enterprise, the more severe the negative impact brought about by PDUR. Moreover, the impact of PDUR on supplier and supply chain performance is two-fold. PDUR based on range information has a negative impact on the expected profit of the supplier and the supply chain, while PDUR based on mean information has a positive impact on their expected profit.

Evaluation of Supplier Performance Using The Fuzzy AHP Approach to The CV. X Bandung Kite Glass Business

Evaluation of Supplier Performance Using The Fuzzy AHP Approach to The CV. X Bandung Kite Glass Business

Retraction notice: Improving supplier performance and strategic sourcing decisions by integrating jobshop scheduling, inventory management and agile new product development

Retraction notice: Improving supplier performance and strategic sourcing decisions by integrating jobshop scheduling, inventory management and agile new product development

The (un)sustainable mix: supply chain finance, sustainability ratings and liquidity

Purpose This study aims to investigate the interaction effect between offering supply chain finance (SCF) programmes and sustainability ratings on the liquidity performance of buyers and suppliers. Design/methodology/approach The study uses a unique sample of buyers that each have an SCF programme. The sample is complemented with financial information and sustainability scores. The data is analysed through a random effects model. Findings Aligning with recent advances in SCF literature, the results confirm a tendency for SCF programmes to favour buyers over suppliers. However, the relationship between SCF programme adoption and liquidity performance for buyers and suppliers is positively moderated by the strong sustainability performance of both parties. Practical implications Buyers and suppliers are advised to implement and adopt effective SCF programmes that are beneficial for both parties. For buyers, the authors suggest leveraging on SCF programmes as incentives to foster sustainable behaviour among suppliers. For suppliers, the authors recommend caution before joining programmes offered by buyers that do not perform well on sustainability. Social implications Enhancing sustainability within global supply chains and fostering favourable payment practices towards suppliers are crucial for policy development and regulation. The findings clarify the connection between both components, offering valuable insights for policymakers in this domain. Originality/value The study is built on a manually picked, unique database of buyers offering SCF programmes to their suppliers. This allows, across a large sample, an evaluation of the differences between buyers that offer SCF programmes and those that do not.

Житлово-побутові умови та комунальне обслуговування мешканців м. Вінниці у 1920-х роках

The purpose of the article is to reconstruct the state of the communal economy of the city of Vinnytsia in the historical period of the 20s of the 20th century, in particular, the formation of such components as housing, electricity supply, water supply, sewage, transport, and the organization of urban space. The research methodology is based on the principles of historicism, scientificity, objectivity and systematicity, as well as the application of general scientific (analysis, synthesis, generalization) and special-historical (problematic-chronological, specific-research, historical-comparative, critical) methods. The scientific novelty of the work lies in the fact that, based on the analysis of available documentary and empirical material, the study of a wide range of scientific works, the authors made a comprehensive analysis of the situation of the communal economy of Vinnytsia during the period of the formation of Soviet power, taking into account the specifics of the Podilsk region. Conclusions. In the period of the 1920s, the communal economy throughout Ukraine was in a state of crisis and needed almost complete reconstruction. This was explained not only by the consequences of the revolutionary events of 1917-1921 and the civil war, but also by the Bolshevik policy of "war communism". The problems of improving housing and living conditions for the population were particularly acute in Podillia and, in particular, in Vinnytsia, due to its border location and the conduct of hostilities in the region. The gradual improvement of the city's communal economy began with the introduction of a new economic policy. The main task of the government was to restore the housing stock, economic facilities, city communications and infrastructure. Thanks to the steps towards decommunization, reforms of the management structures of the communal economy, the formation of local budgets, certain positive developments took place in its development: the solution to the "housing crisis" began, favorable conditions for the normal economic operation of buildings began to be created, the reconstruction of electric companies and city transport was carried out, and the communal infrastructure was improved , which contributed to the improvement of the life of the population and the well-being of the city. However, despite these positive trends, there were a number of problems faced by city dwellers - lack of housing, unsanitary conditions of residential premises, incomplete operation of electricity and water supply, insufficient number of communal baths, deficiencies in the organization of fire protection. A number of problems of the improvement of the city originate from the 20s of the 20th century. and is not fully resolved even in modern conditions.