Startups form an information network that reflects their growth trajectories through information flow channels established by shared investors.However,traditional static network metrics overlook temporal dynamics and ...Startups form an information network that reflects their growth trajectories through information flow channels established by shared investors.However,traditional static network metrics overlook temporal dynamics and rely on single indicators to assess startups’roles in predicting future success,failing to comprehensively capture topological variations and structural diversity.To address these limitations,we construct a temporal information network using 14547 investment records from 1013 global blockchain startups between 2004 and 2020,sourced from Crunchbase.We propose two dynamic methods to characterize the information flow:temporal random walk(sTRW)for modeling information flow trajectories and temporal betweenness centrality(tTBET)for identifying key information hubs.These methods enhance walk coverage while ensuring random stability,allowing for more effective identification of influential startups.By integrating sTRW and tTBET,we develop a comprehensive metric to evaluate a startup’s influence within the network.In experiments assessing startups’potential for future success—where successful startups are defined as those that have undergone M&A or IPO—incorporating this metric improves accuracy,recall,and F1 score by 0.035,0.035,and 0.042,respectively.Our findings indicate that information flow from key startups to others diminishes as the network distance increases.Additionally,successful startups generally exhibit higher information inflows than outflows,suggesting that actively seeking investment-related information contributes to startup growth.Our research provides valuable insights for formulating startup development strategies and offers practical guidance for market regulators.展开更多
There are many motors in operation or on standby in nuclear power plants,and the startup of group motors will have a great impact on the voltage of the emergency bus.At present,there is no special or inexpensive softw...There are many motors in operation or on standby in nuclear power plants,and the startup of group motors will have a great impact on the voltage of the emergency bus.At present,there is no special or inexpensive software to solve this problem,and the experience of engineers is not accurate enough.Therefore,this paper developed a method and system for the startup calculation of group motors in nuclear power plants and proposed an automatic generation method of circuit topology in nuclear power plants.Each component in the topology was given its unique number,and the component class could be constructed according to its type and upper and lower connections.The subordination and topology relationship of switches,buses,and motors could be quickly generated by the program according to the component class,and the simplified direct power flow algorithm was used to calculate the power flow for the startup of group motors according to the above relationship.Then,whether the bus voltage is in the safe range and whether the voltage exceeds the limit during the startup of the group motor could be judged.The practical example was used to verify the effectiveness of the method.Compared with other professional software,the method has high efficiency and low cost.展开更多
China will continue to promote entrepre-neurship and innovation by creating a favorable environment for startups, offering fiscal support and strengthening international cooperation, a government official said.
Entrepreneurial learning involves all kinds of learning activities carried out by enterprises in the process of development.It helps entrepreneurs,as the backbone of enterprises,master key entrepreneurial knowledge an...Entrepreneurial learning involves all kinds of learning activities carried out by enterprises in the process of development.It helps entrepreneurs,as the backbone of enterprises,master key entrepreneurial knowledge and solve practical problems encountered in entrepreneurship.It runs through the whole process of entrepreneurial activities.According to research,through entrepreneurial learning,start-ups can improve entrepreneurial opportunities,entrepreneurial dynamics,and other development potentials;additionally,it helps enterprises better grasp and make full use of opportunities,so as to promote business model innovation and enterprise development.In view of this,this paper focuses on the impact of entrepreneurial learning on the business model innovation of startups,expounds the connotation of entrepreneurial learning,analyzes the impact of entrepreneurial learning on the business model innovation of startups,and proposes strategies on how to promote the business model innovation of startups through entrepreneurial learning based on practice,so as to achieve a breakthrough in the bottleneck of development and provide reference for the innovation and development of more startups.展开更多
In a knowledge-based society,innovation is the driving force of the economy on all levels and in all types of organizations.Due to high risks present when introducing new products and services,innovations are usually ...In a knowledge-based society,innovation is the driving force of the economy on all levels and in all types of organizations.Due to high risks present when introducing new products and services,innovations are usually commercialized via isolated formal formations such as startup companies(next,just startup).The aim of the article is to empirically analyse the situation of startups in Slovakia and describe how Slovak republic supports startup.We used the questionnaire and we approached 289 small and medium enterprises,in case of which we assumed that they are startups.This assumption confirmed 153 startups based on the returned questionnaires.Slovak Republic has all that is necessary for the startup ecosystem.The survey showed that there is a need to support women in business and activate more investors interested in investments in startups.Founders of startup still use mainly own savings for funding business.Our findings can inspire new investors.Results may increase investors’interest in investing in startup companies due to the fact that the Slovak Republic conditions are created for this type of business.展开更多
The COVID-19 pandemic has profoundly impacted startups,disrupting operations,consumer behavior,and market dynamics.Addressing these challenges necessitates an in-depth analysis of startups'vulnerabilities and the ...The COVID-19 pandemic has profoundly impacted startups,disrupting operations,consumer behavior,and market dynamics.Addressing these challenges necessitates an in-depth analysis of startups'vulnerabilities and the development of effective strategies to bolster their resilience and sustainability.This study introduces a combined thematic analysis and system dynamics approach to enhance startups'resilience during the pandemic.A qualitative thematic analysis was employed to identify the key factors influencing resilience.Semi-structured interviews with 12 experts provided data categorized into 21 themes across four dimensions:team,founder,human resources,and startup characteristics.Building on the qualitative phase,a system dynamics model was developed,comprising 32 auxiliary variables,five flow variables,four constants,and four stock variables.Four scenarios were devised to evaluate resilience within this model,reflecting varying degrees of financial strength,government support,and crisis management improvements.The results highlight the effectiveness of Scenario 4,which achieved the highest resilience improvement,driven by a 5% increase in financial strength,a 5%increase in government support,and a 10% enhancement in crisis management.These findings offer critical insights for stakeholders and researchers seeking to strengthen startup resilience during crises.展开更多
A startup company is not just a simple company;it is an engine for developing the country that creates jobs,creates economic growth,drains the brain,and attracts finance institutions.The economic advancement of a nati...A startup company is not just a simple company;it is an engine for developing the country that creates jobs,creates economic growth,drains the brain,and attracts finance institutions.The economic advancement of a nation can often be gauged by the maturity and robustness of its startup ecosystem,alongside the level of governmental investment and support provided to startups.This research aims to examine the definition and conceptualization of the term“startup”,identify established criteria for classifying a startup,and determine whether explicit legal provisions exist that differentiate startups from newly established companies with a focus on Europe.To achieve these objectives,the research includes analysis methods,focusing on secondary data and official institutional data.This approach facilitated a thorough examination of existing definitions,legal frameworks,and institutional practices regarding the identification and registration of startups across various European nations.The findings reveal a significant discrepancy within Europe concerning legislative clarity on startups.Although many European countries exhibit a well-developed startup ecosystem,not many countries possess formal legislative frameworks that explicitly define a startup and delineate its distinguishing characteristics from those of other newly founded businesses.Notably,according to the Global Startup Index 2024,countries such as Sweden,Germany,France,and the Netherlands rank highest in terms of favourable conditions for startup development.Even of high rankings and developed ecosystems,Germany and Sweden have lack of legal framework and definitions of startups,instead relying primarily on individual programs and ad-hoc initiatives to support entrepreneurial ventures like France and the Netherlands do.The research identified that some European countries,Lithuania,Estonia,Spain,Latvia,and France,have adopted legal regulations that formally define and make differences from startups to other companies,outlining clear criteria and benefits associated with startup status.In contrast,analysis of the former Yugoslavian countries,specifically Slovenia,Croatia,Bosnia and Herzegovina,Macedonia,and Montenegro,except Serbia,indicates a conspicuous absence of clear definitions,formal criteria,or legal frameworks distinguishing startups from newly established businesses.These nations lack provisions within their legislative frameworks explicitly addressing the identification and registration of startup companies,resulting in ambiguity and inconsistency in classification and support measures.Results from this research underscore the necessity for clearer,standardized definitions and robust legal frameworks to effectively support and foster startup ecosystems.It provides a foundation for policymakers and stakeholders within the startup ecosystem to enhance clarity in legislation,facilitate targeted support,and promote sustainable economic growth through innovative entrepreneurial activities.展开更多
DeepSeek,a Chinese artificial intelligence(AI)startup based in Hangzhou,was founded by Wenfeng Liang in late 2023.Its AI model,DeepSeek-R1,launched in January 2025,has garnered significant global attention for its cap...DeepSeek,a Chinese artificial intelligence(AI)startup based in Hangzhou,was founded by Wenfeng Liang in late 2023.Its AI model,DeepSeek-R1,launched in January 2025,has garnered significant global attention for its capabilities,which rival those of Google and OpenAI.展开更多
Entreprencurship is not something that springs to mind when people think of China.Just a few decides ago being an entrepreneur or small business owner was practically a criminal offense in some areas ol’the country.B...Entreprencurship is not something that springs to mind when people think of China.Just a few decides ago being an entrepreneur or small business owner was practically a criminal offense in some areas ol’the country.But,somehow,over the past few years,China has grown into a startup superpower.’’Startup Kingdom'(see page 28)looks at how the Middle Kingdom came to be one of the most exciting startup markets in the world and some of the展开更多
At the end of 2016,Pingguo County had developed a production capacity of 6 million tons of bauxite and 2.596 million tons of alumina,a processing capacity of 845,000 tons of aluminum products,and an
Shanghai is a city of entrepreneurship.In this series we talk to entrepreneurs from different backgrounds and businesses about their motivations,experiences and what they have learned along the way.
Serious startup drift of the Ring Laser Gyroscope(RLG)is observed during cold startup process,which will dramatically degrade the performances of the corresponding Inertial Navigation System(INS).In this paper,correla...Serious startup drift of the Ring Laser Gyroscope(RLG)is observed during cold startup process,which will dramatically degrade the performances of the corresponding Inertial Navigation System(INS).In this paper,correlation analysis method,which analyzes the relationship between the startup drift of the RLG and the temperature change,is used to determine the significant temperature-related terms during gyroscope startup.Based on the significant temperature-related terms and the startup time length,a startup drift compensation model for RLG based on monotonicity-constrained Radial Basis Function(RBF)neural network is proposed and validated.Compared with the raw RLG data without compensation,the standard deviation of the RLG output with the proposed constrained RBF network model is decreased by more than 46%,and the peak-to-peak value is decreased by more than 35%.Compared with the traditional multiple regression model,the standard deviation and peak-to-peak value of the RLG output are decreased by more than 10%and 6%,respectively.Compared with the common RBF network model,the standard deviation and peak-to-peak value of the RLG output are decreased by more than 8%and 3%,respectively.Navigation experiments also validate the effectiveness of the compensation model.展开更多
In order to obtain the transient characteristics of a low-speed centrifugal pump during the start-up and shutdown stages,dedicated experimental tests were conducted with eight different valve opening conditions.The Pe...In order to obtain the transient characteristics of a low-speed centrifugal pump during the start-up and shutdown stages,dedicated experimental tests were conducted with eight different valve opening conditions.The Pearson correlation coefficient was used to reveal the linear correlation between variables.According to the results,the stable rotational speed decreases with increasing valve opening(rotational speed decreases from approximately 1472 to 1453 r/min),while the stable shaft power exhibits an increasing trend(shaft power increases from approximately 0.242 to 0.390 kW).The stable time and zeroing time of each parameter during start-up and shutdown processes vary,with the flow zeroing time significantly increasing with the relative flow,reaching up to 10.468 s,while the shaft power zeroing time is roughly between 1.219 and 1.375 s.The results demonstrate that with increasing valve opening,the stable and zeroing time of flow significantly increase(|r|greater than 0.95),while the stable and zeroing time of rotational speed,power,and head display a smaller sensitivity on the valve opening(|r|less than 0.6).展开更多
The specialized equipment utilized in long-line tunnel engineering is evolving towards large-scale,multifunctional,and complex orientations.The vibration caused by the high-frequency units during regular operation is ...The specialized equipment utilized in long-line tunnel engineering is evolving towards large-scale,multifunctional,and complex orientations.The vibration caused by the high-frequency units during regular operation is supported by the foundation of the units,and the magnitude of vibration and the operating frequency fluctuate in different engineering contexts,leading to variations in the dynamic response of the foundation.The high-frequency units yield significantly diverse outcomes under different startup conditions and times,resulting in failure to meet operational requirements,influencing the normal function of the tunnel,and causing harm to the foundation structure,personnel,and property in severe cases.This article formulates a finite element numerical computation model for solid elements using three-dimensional elastic body theory and integrates field measurements to substantiate and ascertain the crucial parameter configurations of the finite element model.By proposing a comprehensive startup timing function for high-frequency dynamic machines under different startup conditions,simulating the frequency andmagnitude variations during the startup process,and suggesting functions for changes in frequency and magnitude,a simulated startup schedule function for high-frequency machines is created through coupling.Taking into account the selection of the transient dynamic analysis step length,the dynamic response results for the lower dynamic foundation during its fundamental frequency crossing process are obtained.The validation checks if the structural magnitude surpasses the safety threshold during the critical phase of unit startup traversing the structural resonance region.The design recommendations for high-frequency units’dynamic foundations are provided,taking into account the startup process of the machine and ensuring the safe operation of the tunnel.展开更多
Start-up companies move the world and represent an engine for the development of society.There are several definitions of what a start-up company is,and depending on the period and the author,different definitions app...Start-up companies move the world and represent an engine for the development of society.There are several definitions of what a start-up company is,and depending on the period and the author,different definitions appear.But that’s why everyone agrees that for a company to be a start-up company,one of the key characteristics is that the company must be innovative and this is the crucial element for the company’s success.A key question that is the subject of this research paper:Is innovation a key factor for success of the start-ups in Croatia?The purpose of the research that was carried out in Croatia was to determine whether innovation is the key factor and element for the success of a start-up company.The main thesis of our research is to determine whether innovations represent a basic and crucial part for the success of every start-up company.The research was conducted through structured interviews with founders and co-owners of 14 Croatian start-up companies from all over Croatia operating in various industries.The results of the research showed that startups see the innovation is an integral part of the success of every start-up company,but it is not crucial and a basis for success,no matter how big and important that innovation is.The findings of the research suggest that while innovation is very important,it is not the sole determinant of success.The research highlights the importance of balanced approach that integrates innovation with other key elements to achieve sustainable growth and competitiveness in the global market.A large number of factors influence a start-up company to succeed in the global market and show significant success.At the same time,the research showed that innovations are of great importance for startups,but they are not the only determinant of success.展开更多
Background:This study aims to clarify the role of FinTech digital banking start-ups in the financial industry.We examine the impact of the funding of such start-ups on the stock returns of 47 incumbent US retail banks...Background:This study aims to clarify the role of FinTech digital banking start-ups in the financial industry.We examine the impact of the funding of such start-ups on the stock returns of 47 incumbent US retail banks for 2010 to 2016.Methods:To capture the importance of FinTech start-ups,we use data on both the dollar-volume of funding and number of deals.We relate these to the stock returns with panel data regression methods.Results:Our results indicate a positive relationship exists between the growth in FinTech funding or deals and the contemporaneous stock returns of incumbent retail banks.Conclusions:Although these results suggest complementarity between FinTech and traditional banking,we note that our results at the banking industry level are not statistically significant,and that the coefficient signs for about one-third of the banks are negative,but not statistically significant.Since the FinTech industry is young and our sample period short,we cannot rule out that our findings are spurious.展开更多
Notwithstanding the emergence of FinTech startups in the financial services industry,most of these companies face significant difficulties in breaking even and surviving.This study examines the main managerial, instit...Notwithstanding the emergence of FinTech startups in the financial services industry,most of these companies face significant difficulties in breaking even and surviving.This study examines the main managerial, institutional, and financial drivers of FinTechprofitability and the time it takes for these firms to break even. The database includesrelevant qualitative factors, such as foundational characteristics, the technologicalprofile of the startup, and its funding structure. Using the full population of FinTechstartups operating in Spain from 2005 to 2017, we observe that most of these firms areunprofitable within three years of their inception. Combining panel data and survivalanalyses, we empirically find that large and solvent FinTech firms founded by singleentrepreneurs in an incubator or accelerator program are more likely to be profitableand prevail. FinTech firms reach their break-even points faster if they receive fundingthrough seed capital.展开更多
A useful mid course guidance law for long range multi purpose missiles is proposed. The law consists of two parts. One is used in the horizontal guidance plane, and the other in the vertical guidance plane. The mid ...A useful mid course guidance law for long range multi purpose missiles is proposed. The law consists of two parts. One is used in the horizontal guidance plane, and the other in the vertical guidance plane. The mid course is combined with variable structure proportional navigation in the homing phase. Simulation results show that the proposed guidance law can meet the demands for starting up the homing phase and so the handing over between mid course guidance and terminal guidance can be carried out successfully.展开更多
This study investigates signal validity in equity-based crowdfunding by examining whether signals that increase crowd participation are associated with higher postoffering success.Post-offering success is measured as ...This study investigates signal validity in equity-based crowdfunding by examining whether signals that increase crowd participation are associated with higher postoffering success.Post-offering success is measured as the probability of survival.We use a hand-collected data set of 88 campaigns with over 64,000 investments and 742 updates from a well-established and leading German equity-based crowdfunding platform,Companisto.We find that indicating that the chief executive officer holds a university degree and a higher number of business-related updates are associated with a lower risk of failure,which is in line with recent research on offering success.The number of updates on external certification,promotions,and the team is associated with a higher risk of failure.In contrast to recent findings on offering success,we find that the equity share offered is positively related to post-offering success,whereas a high number of large investments or updates on campaign development are accompanied by a higher probability of failure.Our results provide guidance for entrepreneurs and investors regarding which signals are worth sending or using.Furthermore,these results suggest that investors are partly using wrong signals and challenge the rationality and wisdom of the crowd.展开更多
基金the funding from the National Natural Science Foundation of China(Grant Nos.42001236,71991481,and 71991480)Young Elite Scientist Sponsor-ship Program by Bast(Grant No.BYESS2023413)。
文摘Startups form an information network that reflects their growth trajectories through information flow channels established by shared investors.However,traditional static network metrics overlook temporal dynamics and rely on single indicators to assess startups’roles in predicting future success,failing to comprehensively capture topological variations and structural diversity.To address these limitations,we construct a temporal information network using 14547 investment records from 1013 global blockchain startups between 2004 and 2020,sourced from Crunchbase.We propose two dynamic methods to characterize the information flow:temporal random walk(sTRW)for modeling information flow trajectories and temporal betweenness centrality(tTBET)for identifying key information hubs.These methods enhance walk coverage while ensuring random stability,allowing for more effective identification of influential startups.By integrating sTRW and tTBET,we develop a comprehensive metric to evaluate a startup’s influence within the network.In experiments assessing startups’potential for future success—where successful startups are defined as those that have undergone M&A or IPO—incorporating this metric improves accuracy,recall,and F1 score by 0.035,0.035,and 0.042,respectively.Our findings indicate that information flow from key startups to others diminishes as the network distance increases.Additionally,successful startups generally exhibit higher information inflows than outflows,suggesting that actively seeking investment-related information contributes to startup growth.Our research provides valuable insights for formulating startup development strategies and offers practical guidance for market regulators.
基金Key Project of National Natural Science Foundation of China(52237008)Beijing Municipal Education Commission Research Program Funding Project(KM202111232022)。
文摘There are many motors in operation or on standby in nuclear power plants,and the startup of group motors will have a great impact on the voltage of the emergency bus.At present,there is no special or inexpensive software to solve this problem,and the experience of engineers is not accurate enough.Therefore,this paper developed a method and system for the startup calculation of group motors in nuclear power plants and proposed an automatic generation method of circuit topology in nuclear power plants.Each component in the topology was given its unique number,and the component class could be constructed according to its type and upper and lower connections.The subordination and topology relationship of switches,buses,and motors could be quickly generated by the program according to the component class,and the simplified direct power flow algorithm was used to calculate the power flow for the startup of group motors according to the above relationship.Then,whether the bus voltage is in the safe range and whether the voltage exceeds the limit during the startup of the group motor could be judged.The practical example was used to verify the effectiveness of the method.Compared with other professional software,the method has high efficiency and low cost.
文摘China will continue to promote entrepre-neurship and innovation by creating a favorable environment for startups, offering fiscal support and strengthening international cooperation, a government official said.
文摘Entrepreneurial learning involves all kinds of learning activities carried out by enterprises in the process of development.It helps entrepreneurs,as the backbone of enterprises,master key entrepreneurial knowledge and solve practical problems encountered in entrepreneurship.It runs through the whole process of entrepreneurial activities.According to research,through entrepreneurial learning,start-ups can improve entrepreneurial opportunities,entrepreneurial dynamics,and other development potentials;additionally,it helps enterprises better grasp and make full use of opportunities,so as to promote business model innovation and enterprise development.In view of this,this paper focuses on the impact of entrepreneurial learning on the business model innovation of startups,expounds the connotation of entrepreneurial learning,analyzes the impact of entrepreneurial learning on the business model innovation of startups,and proposes strategies on how to promote the business model innovation of startups through entrepreneurial learning based on practice,so as to achieve a breakthrough in the bottleneck of development and provide reference for the innovation and development of more startups.
文摘In a knowledge-based society,innovation is the driving force of the economy on all levels and in all types of organizations.Due to high risks present when introducing new products and services,innovations are usually commercialized via isolated formal formations such as startup companies(next,just startup).The aim of the article is to empirically analyse the situation of startups in Slovakia and describe how Slovak republic supports startup.We used the questionnaire and we approached 289 small and medium enterprises,in case of which we assumed that they are startups.This assumption confirmed 153 startups based on the returned questionnaires.Slovak Republic has all that is necessary for the startup ecosystem.The survey showed that there is a need to support women in business and activate more investors interested in investments in startups.Founders of startup still use mainly own savings for funding business.Our findings can inspire new investors.Results may increase investors’interest in investing in startup companies due to the fact that the Slovak Republic conditions are created for this type of business.
文摘The COVID-19 pandemic has profoundly impacted startups,disrupting operations,consumer behavior,and market dynamics.Addressing these challenges necessitates an in-depth analysis of startups'vulnerabilities and the development of effective strategies to bolster their resilience and sustainability.This study introduces a combined thematic analysis and system dynamics approach to enhance startups'resilience during the pandemic.A qualitative thematic analysis was employed to identify the key factors influencing resilience.Semi-structured interviews with 12 experts provided data categorized into 21 themes across four dimensions:team,founder,human resources,and startup characteristics.Building on the qualitative phase,a system dynamics model was developed,comprising 32 auxiliary variables,five flow variables,four constants,and four stock variables.Four scenarios were devised to evaluate resilience within this model,reflecting varying degrees of financial strength,government support,and crisis management improvements.The results highlight the effectiveness of Scenario 4,which achieved the highest resilience improvement,driven by a 5% increase in financial strength,a 5%increase in government support,and a 10% enhancement in crisis management.These findings offer critical insights for stakeholders and researchers seeking to strengthen startup resilience during crises.
文摘A startup company is not just a simple company;it is an engine for developing the country that creates jobs,creates economic growth,drains the brain,and attracts finance institutions.The economic advancement of a nation can often be gauged by the maturity and robustness of its startup ecosystem,alongside the level of governmental investment and support provided to startups.This research aims to examine the definition and conceptualization of the term“startup”,identify established criteria for classifying a startup,and determine whether explicit legal provisions exist that differentiate startups from newly established companies with a focus on Europe.To achieve these objectives,the research includes analysis methods,focusing on secondary data and official institutional data.This approach facilitated a thorough examination of existing definitions,legal frameworks,and institutional practices regarding the identification and registration of startups across various European nations.The findings reveal a significant discrepancy within Europe concerning legislative clarity on startups.Although many European countries exhibit a well-developed startup ecosystem,not many countries possess formal legislative frameworks that explicitly define a startup and delineate its distinguishing characteristics from those of other newly founded businesses.Notably,according to the Global Startup Index 2024,countries such as Sweden,Germany,France,and the Netherlands rank highest in terms of favourable conditions for startup development.Even of high rankings and developed ecosystems,Germany and Sweden have lack of legal framework and definitions of startups,instead relying primarily on individual programs and ad-hoc initiatives to support entrepreneurial ventures like France and the Netherlands do.The research identified that some European countries,Lithuania,Estonia,Spain,Latvia,and France,have adopted legal regulations that formally define and make differences from startups to other companies,outlining clear criteria and benefits associated with startup status.In contrast,analysis of the former Yugoslavian countries,specifically Slovenia,Croatia,Bosnia and Herzegovina,Macedonia,and Montenegro,except Serbia,indicates a conspicuous absence of clear definitions,formal criteria,or legal frameworks distinguishing startups from newly established businesses.These nations lack provisions within their legislative frameworks explicitly addressing the identification and registration of startup companies,resulting in ambiguity and inconsistency in classification and support measures.Results from this research underscore the necessity for clearer,standardized definitions and robust legal frameworks to effectively support and foster startup ecosystems.It provides a foundation for policymakers and stakeholders within the startup ecosystem to enhance clarity in legislation,facilitate targeted support,and promote sustainable economic growth through innovative entrepreneurial activities.
文摘DeepSeek,a Chinese artificial intelligence(AI)startup based in Hangzhou,was founded by Wenfeng Liang in late 2023.Its AI model,DeepSeek-R1,launched in January 2025,has garnered significant global attention for its capabilities,which rival those of Google and OpenAI.
文摘Entreprencurship is not something that springs to mind when people think of China.Just a few decides ago being an entrepreneur or small business owner was practically a criminal offense in some areas ol’the country.But,somehow,over the past few years,China has grown into a startup superpower.’’Startup Kingdom'(see page 28)looks at how the Middle Kingdom came to be one of the most exciting startup markets in the world and some of the
文摘At the end of 2016,Pingguo County had developed a production capacity of 6 million tons of bauxite and 2.596 million tons of alumina,a processing capacity of 845,000 tons of aluminum products,and an
文摘Shanghai is a city of entrepreneurship.In this series we talk to entrepreneurs from different backgrounds and businesses about their motivations,experiences and what they have learned along the way.
基金supported in part by the National Natural Science Foundation of China(No.61203199)。
文摘Serious startup drift of the Ring Laser Gyroscope(RLG)is observed during cold startup process,which will dramatically degrade the performances of the corresponding Inertial Navigation System(INS).In this paper,correlation analysis method,which analyzes the relationship between the startup drift of the RLG and the temperature change,is used to determine the significant temperature-related terms during gyroscope startup.Based on the significant temperature-related terms and the startup time length,a startup drift compensation model for RLG based on monotonicity-constrained Radial Basis Function(RBF)neural network is proposed and validated.Compared with the raw RLG data without compensation,the standard deviation of the RLG output with the proposed constrained RBF network model is decreased by more than 46%,and the peak-to-peak value is decreased by more than 35%.Compared with the traditional multiple regression model,the standard deviation and peak-to-peak value of the RLG output are decreased by more than 10%and 6%,respectively.Compared with the common RBF network model,the standard deviation and peak-to-peak value of the RLG output are decreased by more than 8%and 3%,respectively.Navigation experiments also validate the effectiveness of the compensation model.
基金supported by Science and Technology Project of Quzhou(Grant Nos.2023K256,2023NC08)Zhejiang Provincial Natural Science Foundation of China(Grant No.LZY21E050001)Hunan Province Key Field R&D Plan Project(Grant No.2022GK2068).
文摘In order to obtain the transient characteristics of a low-speed centrifugal pump during the start-up and shutdown stages,dedicated experimental tests were conducted with eight different valve opening conditions.The Pearson correlation coefficient was used to reveal the linear correlation between variables.According to the results,the stable rotational speed decreases with increasing valve opening(rotational speed decreases from approximately 1472 to 1453 r/min),while the stable shaft power exhibits an increasing trend(shaft power increases from approximately 0.242 to 0.390 kW).The stable time and zeroing time of each parameter during start-up and shutdown processes vary,with the flow zeroing time significantly increasing with the relative flow,reaching up to 10.468 s,while the shaft power zeroing time is roughly between 1.219 and 1.375 s.The results demonstrate that with increasing valve opening,the stable and zeroing time of flow significantly increase(|r|greater than 0.95),while the stable and zeroing time of rotational speed,power,and head display a smaller sensitivity on the valve opening(|r|less than 0.6).
基金Smart Integration Key Technologies and Application Demonstrations of Large Scale Underground Space Disaster Prevention and Reduction in Guangzhou International Financial City([2021]–KJ058).
文摘The specialized equipment utilized in long-line tunnel engineering is evolving towards large-scale,multifunctional,and complex orientations.The vibration caused by the high-frequency units during regular operation is supported by the foundation of the units,and the magnitude of vibration and the operating frequency fluctuate in different engineering contexts,leading to variations in the dynamic response of the foundation.The high-frequency units yield significantly diverse outcomes under different startup conditions and times,resulting in failure to meet operational requirements,influencing the normal function of the tunnel,and causing harm to the foundation structure,personnel,and property in severe cases.This article formulates a finite element numerical computation model for solid elements using three-dimensional elastic body theory and integrates field measurements to substantiate and ascertain the crucial parameter configurations of the finite element model.By proposing a comprehensive startup timing function for high-frequency dynamic machines under different startup conditions,simulating the frequency andmagnitude variations during the startup process,and suggesting functions for changes in frequency and magnitude,a simulated startup schedule function for high-frequency machines is created through coupling.Taking into account the selection of the transient dynamic analysis step length,the dynamic response results for the lower dynamic foundation during its fundamental frequency crossing process are obtained.The validation checks if the structural magnitude surpasses the safety threshold during the critical phase of unit startup traversing the structural resonance region.The design recommendations for high-frequency units’dynamic foundations are provided,taking into account the startup process of the machine and ensuring the safe operation of the tunnel.
文摘Start-up companies move the world and represent an engine for the development of society.There are several definitions of what a start-up company is,and depending on the period and the author,different definitions appear.But that’s why everyone agrees that for a company to be a start-up company,one of the key characteristics is that the company must be innovative and this is the crucial element for the company’s success.A key question that is the subject of this research paper:Is innovation a key factor for success of the start-ups in Croatia?The purpose of the research that was carried out in Croatia was to determine whether innovation is the key factor and element for the success of a start-up company.The main thesis of our research is to determine whether innovations represent a basic and crucial part for the success of every start-up company.The research was conducted through structured interviews with founders and co-owners of 14 Croatian start-up companies from all over Croatia operating in various industries.The results of the research showed that startups see the innovation is an integral part of the success of every start-up company,but it is not crucial and a basis for success,no matter how big and important that innovation is.The findings of the research suggest that while innovation is very important,it is not the sole determinant of success.The research highlights the importance of balanced approach that integrates innovation with other key elements to achieve sustainable growth and competitiveness in the global market.A large number of factors influence a start-up company to succeed in the global market and show significant success.At the same time,the research showed that innovations are of great importance for startups,but they are not the only determinant of success.
文摘Background:This study aims to clarify the role of FinTech digital banking start-ups in the financial industry.We examine the impact of the funding of such start-ups on the stock returns of 47 incumbent US retail banks for 2010 to 2016.Methods:To capture the importance of FinTech start-ups,we use data on both the dollar-volume of funding and number of deals.We relate these to the stock returns with panel data regression methods.Results:Our results indicate a positive relationship exists between the growth in FinTech funding or deals and the contemporaneous stock returns of incumbent retail banks.Conclusions:Although these results suggest complementarity between FinTech and traditional banking,we note that our results at the banking industry level are not statistically significant,and that the coefficient signs for about one-third of the banks are negative,but not statistically significant.Since the FinTech industry is young and our sample period short,we cannot rule out that our findings are spurious.
基金support from the FUNCAS Foundation,PGC2018–099415–B–100 MICINN/FEDER/UE,and Junta de Andalucía P18-RT-3571 Project。
文摘Notwithstanding the emergence of FinTech startups in the financial services industry,most of these companies face significant difficulties in breaking even and surviving.This study examines the main managerial, institutional, and financial drivers of FinTechprofitability and the time it takes for these firms to break even. The database includesrelevant qualitative factors, such as foundational characteristics, the technologicalprofile of the startup, and its funding structure. Using the full population of FinTechstartups operating in Spain from 2005 to 2017, we observe that most of these firms areunprofitable within three years of their inception. Combining panel data and survivalanalyses, we empirically find that large and solvent FinTech firms founded by singleentrepreneurs in an incubator or accelerator program are more likely to be profitableand prevail. FinTech firms reach their break-even points faster if they receive fundingthrough seed capital.
文摘A useful mid course guidance law for long range multi purpose missiles is proposed. The law consists of two parts. One is used in the horizontal guidance plane, and the other in the vertical guidance plane. The mid course is combined with variable structure proportional navigation in the homing phase. Simulation results show that the proposed guidance law can meet the demands for starting up the homing phase and so the handing over between mid course guidance and terminal guidance can be carried out successfully.
文摘This study investigates signal validity in equity-based crowdfunding by examining whether signals that increase crowd participation are associated with higher postoffering success.Post-offering success is measured as the probability of survival.We use a hand-collected data set of 88 campaigns with over 64,000 investments and 742 updates from a well-established and leading German equity-based crowdfunding platform,Companisto.We find that indicating that the chief executive officer holds a university degree and a higher number of business-related updates are associated with a lower risk of failure,which is in line with recent research on offering success.The number of updates on external certification,promotions,and the team is associated with a higher risk of failure.In contrast to recent findings on offering success,we find that the equity share offered is positively related to post-offering success,whereas a high number of large investments or updates on campaign development are accompanied by a higher probability of failure.Our results provide guidance for entrepreneurs and investors regarding which signals are worth sending or using.Furthermore,these results suggest that investors are partly using wrong signals and challenge the rationality and wisdom of the crowd.
