Start-up Performance Research Articles

Aerodynamic characterization of a H-Darrieus wind turbine with a Drag-Disturbed Flow device installation

This study examines the impact of the Drag-Disturbed Flow device on the startup and operation of HDWT (H-Darrieus wind turbine). The device plays a crucial role in enhancing the startup performance of the HDWT and improving the overall wind energy utilization. This work presents a study where two-dimensional computational fluid dynamics (CFD) evaluations are performed on various D-DF (Drag-Disturbed) devices. The HDWT utilizes the NACA0018 airfoil type, while the D-DF device employs triangular, oval, and NACA0018 airfoil structures. The text explains the installation process and operational principles of the D-DF device. It also verifies the device's meshing and accuracy. Furthermore, this study conducts 2-D simulations to analyze the impact of various D-DF devices on the moment and wind energy consumption coefficients of the HDWT. Additionally, the process by which D-DF devices enhance the performance of the HDWT is explained by an analysis of the vortex cloud diagram. The results indicate that the HDWTs equipped with D-DF devices experience significant performance improvements during the wind turbine startup phase. Specifically, the Drag blade effectively enhances the moment coefficient of the HDWTs at low tip speed ratios by an average of approximately 41.74 %. Additionally, once the HDWTs are started and operating at high tip speed ratios, all D-DF devices, except for the DF-Tri, can be utilized within the λ = 1.2–2 range to enhance the torque coefficient of the HDWT by an average of about 7.53 %. This study aims to improve the operating performance of the current HDWT, lower the wind turbine cut-in wind speed, and enhance the wind energy consumption of the turbine.

Poised for growth: Exploring the relationship between accelerator program design and startup performance

AbstractResearch SummaryAccelerator programs provide valuable market feedback and education to participants that may improve startup performance. However, it is unclear whether the average effect of accelerator participation on startup performance post acceleration is positive, and if so, how this effect varies with accelerator program design. We analyze data from 8580 startups that made it past the initial selection stage at 408 accelerators in 176 countries between 2013 and 2019. We compare accelerated and non‐accelerated startups and find a positive average effect of accelerator participation on startup performance post acceleration. Moreover, we find that this effect varies substantially with program design, and depends on venture stage, industry, and founder expertise. Our findings highlight the impact of program design on the benefits that startups derive from accelerator participation.Managerial SummaryThe purpose of this study is to determine whether participation in startup accelerator programs generally leads to improved startup performance post acceleration and how the benefits of participation might vary with the design of these programs. We analyze data from 8580 startups that applied to and passed the initial selection phase at 408 accelerators in 176 countries over multiple cohorts between 2013 and 2019. Our results indicate that on average, startups that participate in accelerators perform better than those that are also selected but not accelerated. Furthermore, we find that the benefits that startups gain from being accelerated vary with the design of the program. Our findings highlight the importance of accelerator program design in influencing the extent of improvement in startup performance post acceleration.

Study on heat transfer characteristics of a dual-evaporator ultra-thin loop heat pipe for laptop cooling

The thermal management of laptops is challenged by the presence of multiple heat sources with non-uniform distribution and limited space for heat dissipation. This paper proposes the application of a 1 mm thickness dual-evaporator ultra-thin loop heat pipe (DE-UTLHP) for cooling laptops. The start-up performance and steady-state heat transfer performance of the dual-evaporator ultra-thin loop heat pipes were studied under equal or unequal heat loads. The results show that successful set-up can be achieved within the range of heat loads from 5 W–5 W to 20 W–20 W in the horizontal orientation. And it can achieve a maximum heat load of up to 22 W–22 W and a minimum thermal resistance of 0.69 °C/W. Furthermore, it was found that it exhibited better heat transfer performance in the vertical orientation compared to the horizontal orientation. The proposed dual-evaporator ultra-thin loop heat pipes can convert isolated and dispersed direct heat dissipation into centralized and integrated thermal management for future laptops.

The Impact of Entrepreneurship-Based Branding on Startup Performance

Objective: The purpose of this study is to examine the influence of entrepreneurship-based branding on the performance of startups. Methodology: For this purpose, 52 managers or representatives of startups in the public services sector were considered as the population. Due to the small size of the population, no sampling was conducted, and all 52 individuals were studied. The research data were collected using a researcher-made questionnaire. Findings: The results indicate that entrepreneurship-based branding has a positive and significant impact on the performance of startups. Specifically, causal conditions of branding with a statistic of 26.719 have a significant impact on entrepreneurial branding; entrepreneurial branding with a statistic of 4.873 significantly influences value-based brand positioning; value-based positioning with a statistic of 29.960 significantly affects startup performance. Conclusion: The formulation of practical strategies, such as improving responsiveness, and the efficient and effective employment of this sector, leads to the strategic development of the brand in domestic and foreign markets, which in turn, will lead to an enhanced brand identity. On the other hand, having professional management, marketing experience, resource commitment, and the utilization of internal information contributes to the development of entrepreneurship.

Startup optimization of gas foil bearings-rotor system in proton exchange membrane fuel cells

The startup performance is crucial to the high-efficient operation of the sustainable power generation system. Current literature usually focuses on catalysts and startup strategy to improve startup performance of the proton exchange membrane fuel cell, which ignores the gas foil bearings-rotor system that directly affects startup response. Therefore, in this paper, the effects of bump foil structure, coating, and nominal clearance on the startup response of the bearings-rotor system are first investigated experimentally. Multi-objectives optimization mathematical model considering simultaneously lower power consumption, takeoff speed, and vibration is presented based on grey relational analysis. The optimal bearings-rotor system with radial trisection bump foil, coating MoS2, and nominal clearance of 50 μm is identified. Compared to average values, the power consumption of the optimal system is diminished by 27.2% while the takeoff speed and nonlinear vibration are reduced by 16.2% and 47.3%, respectively. These findings can be used to improve energy efficiency and startup performance for fuel cells. The systematic methodology proposed in this study can be extended to other investigations about the startup.

How do student entrepreneurs use open innovation and incubation services to improve the performance of university-incubated startups?

Existing knowledge regarding how student entrepreneurs leverage open innovation (OI) and incubation services within university business incubators (UBIs) to enhance the performance of university-incubated startups (UISs) is limited. We propose a model suggesting that the adoption of OI practices mediates the relationship between student entrepreneurs' OI motives and UISs’ performance, while UBI services mediate the relationship between the use OI practices and startup performance. To validate our model, we conducted a quantitative survey of 97 student entrepreneurs from five UBIs in Latvia. Our findings demonstrate a dual mediating effect where the use of OI practices and UBI services significantly impacts UISs’ performance while providing valuable theoretical and practical insights.

Designing a Model of Strategic Alliances and Their Impact on Company Performance in Startups with a Social Mission in the Light Automotive Industry

Objective: The objective of this study was to design a model of strategic alliances and examine their impact on the performance of startups with a social mission in the light automotive industry. Methodology: This research was conducted using a quantitative approach with a sample of 15 senior managers from Iran’s automotive industry. Data were collected using a Likert-scale questionnaire, and cluster sampling was applied to select the participants. Structural equation modeling (SEM) and SPSS software were used to analyze the data. The impact coefficients and significance coefficients of the hypotheses' paths were examined to assess the relationships among the variables. Findings: The results showed that strategic alliances have a direct and positive effect on company performance (impact coefficient: 0.673). Moreover, the stage of company development moderates the relationship between strategic alliances and performance (impact coefficient: 0.404). Companies engaged in social innovation demonstrated better performance (impact coefficient: 0.487). Additionally, larger companies were found to perform better than smaller ones (impact coefficient: 0.488). Conclusion: The study concluded that strategic alliances significantly improve the performance of startups with a social mission. Companies at more advanced stages of development and larger companies benefit more from these alliances. Social innovation was also identified as a critical factor in enhancing company performance. Thus, strategic alliances are recommended as a key tool for achieving both economic and social objectives in the light automotive industry.

The Rise of Early-Stage Financing in the US and Startup Performance

The Rise of Early-Stage Financing in the US and Startup Performance

Transient Characteristics and Performance of a Dual Compensation Chamber Loop Heat Pipe under Various Heat Loads

The dual compensation chamber loop heat pipe (DCCLHP) technology shows great promise for efficient thermal management in a variety of applications. This study focuses on refining the startup performance of the DCCLHP, particularly for low heat load conditions in terrestrial settings, by utilizing dual bayonet tubes. Empirical investigations examined the DCCLHP’s operational characteristics and improved thermal transfer capabilities across different orientations of the evaporator and compensation chamber (CC), including vertical, 45‐degree tilt angle, and horizontal configurations. Key results demonstrate the DCCLHP’s ability to manage low heat loads across diverse orientations, achieving over 400 W of heat transfer across a distance of 2.0 m while maintaining stable operation. Notably, the DCCLHP operation did not exhibit any significant instability issues. This work enhances the startup performance of the DCCLHP in various orientations and provides valuable insights into the confined natural circulation phenomenon, crucial for improving the overall thermal management capabilities of the system. In summary, the study highlights advancements in DCCLHP design and its potential to address thermal management challenges in diverse applications, particularly in the aerospace industry, through improved startup performance and enhanced heat transfer capabilities.

The Impact of Entrepreneurship-Based Branding on Startup Performance

The Impact of Entrepreneurship-Based Branding on Startup Performance

The effect of founding team characteristics on start-ups performance. The case of Campania

The effect of founding team characteristics on start-ups performance. The case of Campania

Analysis of Success and Failure Factors of Sports Startups and Entrepreneurs in Developing Countries

This article analyzes the success and failure factors of sports startups in developing countries. Using a narrative review and descriptive analysis, internal factors such as effective management, experienced teams, innovation, and market alignment are identified as key elements of success. Conversely, poor management, lack of experience, financial challenges, and market misalignment are major reasons for the failure of these startups. External factors like infrastructure, government policies, economic conditions, and market competition also significantly impact the performance of sports startups. Countries with better infrastructure and more government support tend to witness greater success in sports startups. In contrast, bureaucratic complexities and lack of adequate support can lead to startup failure. The article compares success and failure factors across different countries, identifying common patterns among these factors. It also highlights the crucial role of cultural and economic differences in determining the success or failure of startups, emphasizing that startups need to adapt their strategies according to local conditions. Finally, the article provides practical recommendations for entrepreneurs, policymakers, and researchers. It also discusses the limitations of the study and offers suggestions for future research, including the need for deeper cultural and economic analysis and the examination of the impact of new technologies in this field.

Improving the Impact of Innovation and Technology Centers on the Performance of University-Based Start-ups.

Improving the Impact of Innovation and Technology Centers on the Performance of University-Based Start-ups.

The influence of entrepreneurial traits on the success of startup performance in India

The influence of entrepreneurial traits on the success of startup performance in India

STUDY ON TWO-PHASE FLOW AND TEMPERATURE UNIFORMITY CHARACTERISTICS OF MICROCHANNEL HEAT PIPE

In order to offset the local heat flux concentration phenomenon and ensure the steady performance of electronics, a test apparatus for evaluating the thermal performance of a microchannel heat pipe was constructed to investigate the thermal uniformity of the microchannel heat pipe under varying heat source placements. The experimental findings indicate that at a power of 25 W with the heat source positioned on plane C, the overall thermal resistance of the heat pipe differs by 60.1% compared to the local thermal resistance. Furthermore, the heat pipe exhibits a minimum overall thermal resistance of 0.3 K/W, highlighting improved temperature uniformity and quicker start-up performance. The mathematical model based on the lattice Boltzmann method is established and the dynamic operation mechanism of boiling and condensation under the action of local heat source in closed space is discussed. The simulation results suggested that when the heat source is positioned centrally on the underside, the diffusion of the working fluid vapor becomes more uniform and the most intense boiling occurs. The boiling of the working fluid in this area results in the most frequent and intense periodic improvement in heat transfer, thus achieving optimal thermal performance in terms of temperature distribution for the heat pipe.

Determinants of startup performance: an empirical analysis of startups from Kerala, India

Determinants of startup performance: an empirical analysis of startups from Kerala, India

Does Flexible Working Time Make Start-up Company Workers More Engaged?

Currently, one business model that is particularly prevalent in Indonesia and has an impact on state revenue is start-up. There is one technology start-up in Indonesia that also influences economic development in Indonesia, namely company X. Behind the good performance of technology start-ups, there are roles of workers, culture, and the environment. Start-up X has a culture, namely a flexible work arrangement in which employees can have the freedom to choose when and where to work. This flexibility also has a lot of impact on the way of work and also the daily life of the workers. Flexible work arrangement (FWA) works as resources in a company. The high freedom affects workers’ engagement. Thus, the purpose of this study was to determine the effect of flexible work arrangements on the work engagement of employees at Start-up Company X. This research was conducted on 102 workers selected with a convenience sampling technique. This study uses a non-experimental research design with a correlational study method. Data collection was carried out using the Flexible Work Arrangement measuring tool adapted from Umi Farida (2020) and the Indonesian Utrecht Work Engagement Scale (UWES)-17 questionnaire from Schaufeli (2004). The results of this study indicate that there is a significant effect (p<0.001; R2=0.245) of the flexible work arrangement on the work engagement of employees at start-up company X. It means if there is a change in flexible work arrangement, it will impact the result of the work engagement. Our research adds new insights about the impact of FWA and WE variables on startup companies. Furthermore, when FWA is supported by adequate job resources and balanced with job demands, it can improve employee’s WE in startup companies. This study can provide information on future research on FWA and WE variables in start-up companies and with FWA supported by job resources that are balanced with job demand, will increase the WE of start-up company workers.

The Influence of Management Accounting Information Systems and Organizational Culture on Firm Performance: Survey of Start-Ups in the Java Island Region, Indonesia

The phenomena of the digital era are being discussed. The cultural change that is felt and carried out throughout the world is the transformation from conventional to digital. Newly established businesses, startups themselves mostly focus on IT and IT business. The use of management accounting information systems by start-up employees must be able to provide the entity concerned with a competitive advantage. Therefore, this research aims to see how management accounting information systems and organizational culture influence company performance. This research also looks at how this system can be applied to start-ups in Indonesia. Hypotheses are used in quantitative research designs. The type of data used is quantitative data obtained from the results of an e-survey involving start-ups on the island of Java, Indonesia. The results of this research show that management accounting information systems and organizational culture influence the firm performance of start-ups.

THE EFFECT OF INTERNSHIP AND ENTREPRENEURSHIP TRAINING ON STRAT-UP PERFORMANCE WITH ENTREPRENEURIAL MOTIVATION AS AN INTERVENING VARIABEL

This research aims to analyze the influence of internships and entrepreneurship training on start-up performance, both directly and through entrepreneurial motivation. This research used a quantitative approach with a sample of the first batch of UMS Independent Entrepreneurial Students in 2022, involving 869 participants. Sample selection criteria included full participation in the program and having an active business. The results of the analysis show that internships have a positive and significant impact on start-up performance and entrepreneurial motivation. While entrepreneurship training does not have a significant direct impact on start-up performance, it does influence entrepreneurial motivation significantly. Entrepreneurial motivation also has a significant positive impact on start-up performance. Interestingly, both internships and entrepreneurship training provide a significant positive impact on start-up performance when mediated by entrepreneurial motivation. Internships and entrepreneurship training have an important role in influencing start-up performance, especially when linked to entrepreneurial motivation. This emphasizes the importance of experience-based learning and formal training in supporting entrepreneurial spirit and performance among students in Indonesia.

The impacts of customer involvement and knowledge absorptive capacity on the performance of startups

ABSTRACT The objective of this research is to investigate the effect of customer involvement in different stages of the new product development process and absorptive capacity on the growth performance of startups. In this paper, the linear regression was utilised to analyse the empirical data collected from 152 startups in Vietnam. Results showed that customer involvement has a positive impact on startup growth. Particularly, startups who involve customers more intensively in the ideation stage will yield better growth than those involving customers in the development and commercialisation. The next finding is about knowledge absorptive capacity whose four processes affect startup growth differently. The analysed data revealed that only knowledge acquisition and knowledge exploitation have a significant positive impact on the performance of startups. Other processes of absorptive capacity, which are knowledge assimilation and transformation, have no contribution to performance. Based on results, some recommendations to enhance the startups’ performance are proposed.