For large generators, the problem of high-resistance grounding method and the advantages of resonance, grounding method are discussed in detail, and an overall comparison is given in this paper. It is recommended that...For large generators, the problem of high-resistance grounding method and the advantages of resonance, grounding method are discussed in detail, and an overall comparison is given in this paper. It is recommended that the latter should be adopted so as to increase the operation reliability of large generators and power systems.展开更多
By taking a 2.3 MW double-fed asynchronous generator as an example,a new method for fast simulation analysis of ventilation cooling system inside generator is proposed based on the one-dimensional simulation software ...By taking a 2.3 MW double-fed asynchronous generator as an example,a new method for fast simulation analysis of ventilation cooling system inside generator is proposed based on the one-dimensional simulation software FLOWMASTER.The thermal-fluid coupling simulation model of ventilation cooling system inside generator is established.Under the stable running state of the generator,the flow velocity distribution and temperature rise of the key parts of the generator are analyzed.The results prove that the ventilation structure design of the generator meets the temperature rise limit.The simulation results are compared with the theoretical calculation results and the experimental results,which verify the correctness of the thermal-fluid coupling simulation method proposed in this paper.展开更多
This work studies large deflections of slen- der, non-prismatic cantilever beams subjected to a combined loading which consists of a non-uniformly distributed con- tinuous load and a concentrated load at the free end ...This work studies large deflections of slen- der, non-prismatic cantilever beams subjected to a combined loading which consists of a non-uniformly distributed con- tinuous load and a concentrated load at the free end of the beam. The material of the cantilever is assumed to be non- linearly elastic. Different nonlinear relations between stress and strain in tensile and compressive domain are considered. The accuracy of numerical solutions is evaluated by com- paring them with results from previous studies and with a laboratory experiment.展开更多
In this paper we use the spectral method to analyse the generalized Kuramoto-Sivashinsky equations. We prove the existence and uniqueness of global smooth solution of the equations. Finally, we obtain the error estima...In this paper we use the spectral method to analyse the generalized Kuramoto-Sivashinsky equations. We prove the existence and uniqueness of global smooth solution of the equations. Finally, we obtain the error estimation between spectral approximate solution and exact solution on large time.展开更多
This study investigates the role of generative large language models(GLLMs)in supporting complex selection and evaluation tasks within the academic paper review process.Using empirical data from management journal sub...This study investigates the role of generative large language models(GLLMs)in supporting complex selection and evaluation tasks within the academic paper review process.Using empirical data from management journal submissions,we compared the performance of six leading GLLMs(Claude 3.5,GPT-4O,Gemini 2.5,Deepseek-R3,Moonshot-V1(kimi),and Qwen-Long)against human editors and reviewers.The results show that,at the editorial screening stage,GLLMs can help editors identify manuscripts with low publication potential,with aggregated model scores closely matching human editorial decisions.At the review stage,comments generated by the union of any three GLLMs from six GLLMs can cover over 61%of issues raised by human reviewers and are rated as superior by management professors.These findings demonstrate that GLLMs can complement human judgment in multi-stage,knowledge-intensive decision processes,improving both the efficiency and quality of academic paper reviews.The study expands the application boundaries of generative Al in management research evaluation and offers practical insights for integrating GLLMs into scholarly review workflows.展开更多
Multiple charge ions (MCIs) are necessary for increasing the output energy of particles in accelerators. In general, MCI beams are largely produced by electron beam ion source (EBIS) [1], laser ion source (LIS) [2], o...Multiple charge ions (MCIs) are necessary for increasing the output energy of particles in accelerators. In general, MCI beams are largely produced by electron beam ion source (EBIS) [1], laser ion source (LIS) [2], or high-frequency (mostly >5 GHz) electron cyclotron resonance (ECR) ion source [3]. Among these, only ECR ion source can operate in the continuous wave (CW) mode, while EBIS and LIS only support pulses. In addition, ECR ion source with lower frequency (mostly 2.45 GHz) are required primarily for generating single charge state ions, because the corresponding ECR field (875 Gs) is not sufficiently strong for MCI generation [4].展开更多
文摘For large generators, the problem of high-resistance grounding method and the advantages of resonance, grounding method are discussed in detail, and an overall comparison is given in this paper. It is recommended that the latter should be adopted so as to increase the operation reliability of large generators and power systems.
文摘By taking a 2.3 MW double-fed asynchronous generator as an example,a new method for fast simulation analysis of ventilation cooling system inside generator is proposed based on the one-dimensional simulation software FLOWMASTER.The thermal-fluid coupling simulation model of ventilation cooling system inside generator is established.Under the stable running state of the generator,the flow velocity distribution and temperature rise of the key parts of the generator are analyzed.The results prove that the ventilation structure design of the generator meets the temperature rise limit.The simulation results are compared with the theoretical calculation results and the experimental results,which verify the correctness of the thermal-fluid coupling simulation method proposed in this paper.
文摘This work studies large deflections of slen- der, non-prismatic cantilever beams subjected to a combined loading which consists of a non-uniformly distributed con- tinuous load and a concentrated load at the free end of the beam. The material of the cantilever is assumed to be non- linearly elastic. Different nonlinear relations between stress and strain in tensile and compressive domain are considered. The accuracy of numerical solutions is evaluated by com- paring them with results from previous studies and with a laboratory experiment.
文摘In this paper we use the spectral method to analyse the generalized Kuramoto-Sivashinsky equations. We prove the existence and uniqueness of global smooth solution of the equations. Finally, we obtain the error estimation between spectral approximate solution and exact solution on large time.
基金supported by the National Natural Science Foundation of China[grant number 72372102]for the project'Research on the coordination mechanism of digital transformation strategies between leading firms and follower firms in business ecosystem'.
文摘This study investigates the role of generative large language models(GLLMs)in supporting complex selection and evaluation tasks within the academic paper review process.Using empirical data from management journal submissions,we compared the performance of six leading GLLMs(Claude 3.5,GPT-4O,Gemini 2.5,Deepseek-R3,Moonshot-V1(kimi),and Qwen-Long)against human editors and reviewers.The results show that,at the editorial screening stage,GLLMs can help editors identify manuscripts with low publication potential,with aggregated model scores closely matching human editorial decisions.At the review stage,comments generated by the union of any three GLLMs from six GLLMs can cover over 61%of issues raised by human reviewers and are rated as superior by management professors.These findings demonstrate that GLLMs can complement human judgment in multi-stage,knowledge-intensive decision processes,improving both the efficiency and quality of academic paper reviews.The study expands the application boundaries of generative Al in management research evaluation and offers practical insights for integrating GLLMs into scholarly review workflows.
基金supported by the National Natural Science Foundation of China (Grant No. 11575013)the National Basic Research Program of China (Grant No. 2014CB84550)
文摘Multiple charge ions (MCIs) are necessary for increasing the output energy of particles in accelerators. In general, MCI beams are largely produced by electron beam ion source (EBIS) [1], laser ion source (LIS) [2], or high-frequency (mostly >5 GHz) electron cyclotron resonance (ECR) ion source [3]. Among these, only ECR ion source can operate in the continuous wave (CW) mode, while EBIS and LIS only support pulses. In addition, ECR ion source with lower frequency (mostly 2.45 GHz) are required primarily for generating single charge state ions, because the corresponding ECR field (875 Gs) is not sufficiently strong for MCI generation [4].
