Kai Chen
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View article: Studies of simulation framework for NνDEx experiment
Studies of simulation framework for NνDEx experiment Open
The N$ν$DEx experiment aims to search for the neutrinoless double beta decay of $^{82}$Se using a high-pressure $^{82}$SeF$_6$ gas time projection chamber (TPC). Under the assumption of two kinds of charge carriers would be formed, the dif…
View article: Measurement of charged hadron multiplicity in Au+Au collisions at $$ \sqrt{{\textrm{s}}_{\textrm{NN}}} $$ = 200 GeV with the sPHENIX detector
Measurement of charged hadron multiplicity in Au+Au collisions at $$ \sqrt{{\textrm{s}}_{\textrm{NN}}} $$ = 200 GeV with the sPHENIX detector Open
A bstract The pseudorapidity distribution of charged hadrons produced in Au+Au collisions at a center-of-mass energy of $$ \sqrt{{\textrm{s}}_{\textrm{NN}}} $$ = 200 GeV is measured using data collected by the sPHENIX detector. Charge…
View article: Reliability Evaluation of New-Generation Substation Relay Protection Equipment Based on ASFSSA-LSTM-GAN
Reliability Evaluation of New-Generation Substation Relay Protection Equipment Based on ASFSSA-LSTM-GAN Open
In order to improve the reliability evaluation accuracy of a new generation of substation relay protection equipment under small-sample failure rate data, a Generative Adversarial Network (GAN) model based on the Adaptive Spiral Flying Spa…
View article: Measurement of Ion Mobilities for the Ion-TPC of NvDEx Experiment
Measurement of Ion Mobilities for the Ion-TPC of NvDEx Experiment Open
In the NνDEx collaboration, a high-pressure gas TPC is being developed to search for the neutrinoless double beta decay. The use of electronegative 82SeF6 gas mandates an ion-TPC. The reconstruction of the z coordinate is to be realized by…
View article: Visible light photo-switching in a conformationally-strained electron acceptor <i>via</i> a dual singlet–triplet mechanism
Visible light photo-switching in a conformationally-strained electron acceptor <i>via</i> a dual singlet–triplet mechanism Open
A strained molecular electron acceptor undergoes visible light photo-switching via an unusual dual mechanism. Singlet isomerization proceeds via excess vibrational energy, while the triplet undergoes thermally activated isomerization.
View article: Dynamic observation of the influence of different acceleration forms on the friction lining during the friction transmission process in a simulated coal mine environment
Dynamic observation of the influence of different acceleration forms on the friction lining during the friction transmission process in a simulated coal mine environment Open
The operation of a hoist is not simply constant motion, and different forms of lifting acceleration can cause changes in the tension of the steel wire rope, thereby affecting the strain and friction transmission of the friction lining. The…
View article: Measurement of gas properties for the ion-TPC of N$ν$DEx experiment
Measurement of gas properties for the ion-TPC of N$ν$DEx experiment Open
In the N$ν$DEx collaboration, a high-pressure gas TPC is being developed to search for the neutrinoless double beta decay. The use of electronegative $\mathrm{^{82}SeF_{6}}$ gas mandates an ion-TPC. The reconstruction of $z$ coordinate is …
View article: Performance of a novel charge sensor on the ion detection for the development of a high-pressure avalancheless ion TPC
Performance of a novel charge sensor on the ion detection for the development of a high-pressure avalancheless ion TPC Open
Within the project of building a time projection chamber using 100 kg of high-pressure 86 SeF 6 gas to search for the neutrinoless double-beta decay in the NvDEx collaboration, we are developing a CMOS charge sensor, named Topmetal-S, whic…
View article: Reliable Cost Prediction and Control for Intelligent Manufacture: A Key Performance Indicator Perspective
Reliable Cost Prediction and Control for Intelligent Manufacture: A Key Performance Indicator Perspective Open
Article Reliable Cost Prediction and Control for Intelligent Manufacture: A Key Performance Indicator Perspective Hang Geng 1,*, Alireza Mousavi 2, Nikolaos Grigorios Markatos 2, Kai Chen 1, and Xuan Gou 1 1 School of Automation Engineerin…
View article: A demonstrator for a real-time AI-FPGA-based triggering system for sPHENIX at RHIC
A demonstrator for a real-time AI-FPGA-based triggering system for sPHENIX at RHIC Open
The RHIC interaction rate at sPHENIX will reach around 3 MHz in pp collisions and requires the detector readout to reject events by a factor of over 200 to fit the DAQ bandwidth of 15 kHz. Some critical measurements, such as heavy flavor p…
View article: A demonstrator for a real-time AI-FPGA-based triggering system for sPHENIX at RHIC
A demonstrator for a real-time AI-FPGA-based triggering system for sPHENIX at RHIC Open
The RHIC interaction rate at sPHENIX will reach around 3 MHz in pp collisions and requires the detector readout to reject events by a factor of over 200 to fit the DAQ bandwidth of 15 kHz. Some critical measurements, such as heavy flavor p…
View article: STCF conceptual design report (Volume 1): Physics & detector
STCF conceptual design report (Volume 1): Physics & detector Open
The super τ -charm facility (STCF) is an electron–positron collider proposed by the Chinese particle physics community. It is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of 0.5 × 10 35 cm −2 …
View article: Giant Resistive Switching and Lattice Modulation at Full Temperature Range in a Sr‐Doped Nickelate Oxide Transistor
Giant Resistive Switching and Lattice Modulation at Full Temperature Range in a Sr‐Doped Nickelate Oxide Transistor Open
How to promote the resistance switching ratio, enlarge the operating temperature range and accelerate the switching speed is at the forefront of ionic gating electronics. Usually, most attention has been paid to materials with metal‐to‐ins…
View article: NvDEx-100 Conceptual Design Report
NvDEx-100 Conceptual Design Report Open
Observing nuclear neutrinoless double beta (0vbb) decay would be a revolutionary result in particle physics. Observing such a decay would prove that the neutrinos are their own antiparticles, help to study the absolute mass of neutrinos, e…
View article: Calibration Model Optimization for Strain Metrology of Equal Strength Beams Using Deflection Measurements
Calibration Model Optimization for Strain Metrology of Equal Strength Beams Using Deflection Measurements Open
Strain sensors, especially fiber Bragg grating (FBG) sensors, are of great importance in structural health monitoring, mechanical property analysis, and so on. Their metrological accuracy is typically evaluated by equal strength beams. The…
View article: Disturbance auto-encoder generation model: Few-shot learning method for IGBT open-circuit fault diagnosis in three-phase converters
Disturbance auto-encoder generation model: Few-shot learning method for IGBT open-circuit fault diagnosis in three-phase converters Open
With the rapid development of converters in a variety of industrial fields, the fault diagnosis of power switching devices has become an important factor in ensuring the safe and reliable operation of related systems. In recent years, mach…
View article: ATHENA detector proposal — a totally hermetic electron nucleus apparatus proposed for IP6 at the Electron-Ion Collider
ATHENA detector proposal — a totally hermetic electron nucleus apparatus proposed for IP6 at the Electron-Ion Collider Open
ATHENA has been designed as a general purpose detector capable of delivering the full scientific scope of the Electron-Ion Collider. Careful technology choices provide fine tracking and momentum resolution, high performance electromagnetic…
View article: ECCE Sensitivity Studies for Single Hadron Transverse Single Spin Asymmetry Measurements
ECCE Sensitivity Studies for Single Hadron Transverse Single Spin Asymmetry Measurements Open
We performed feasibility studies for various single transverse spin measurements that are related to the Sivers effect, transversity and the tensor charge, and the Collins fragmentation function. The processes studied include semi-inclusiv…
View article: Search for $e\\to\\tau$ Charged Lepton Flavor Violation at the EIC with\n the ECCE Detector
Search for $e\\to\\tau$ Charged Lepton Flavor Violation at the EIC with\n the ECCE Detector Open
The recently approved Electron-Ion Collider (EIC) will provide a unique new\nopportunity for searches of charged lepton flavor violation (CLFV) and other\nnew physics scenarios. In contrast to the $e \\leftrightarrow \\mu$ CLFV\ntransition…
View article: The Phase-I trigger readout electronics upgrade of the ATLAS Liquid Argon calorimeters
The Phase-I trigger readout electronics upgrade of the ATLAS Liquid Argon calorimeters Open
The Phase-I trigger readout electronics upgrade of the ATLAS Liquid Argon calorimeters enhances the physics reach of the experiment during the upcoming operation at increasing Large Hadron Collider luminosities. The new system, installed d…
View article: Frequency domain interferometry for measuring ultrafast refractive index modulation and surface deformation
Frequency domain interferometry for measuring ultrafast refractive index modulation and surface deformation Open
Ultrafast optical spectroscopy delivers unparalleled insights into the dynamic response of photoactive materials, including semiconducting, photonic and phase-change materials. The most applied experimental tool – transient absorption spec…
View article: The Phase-I trigger readout electronics upgrade of the ATLAS Liquid Argon calorimeters
The Phase-I trigger readout electronics upgrade of the ATLAS Liquid Argon calorimeters Open
The Phase-I trigger readout electronics upgrade of the ATLAS Liquid Argon calorimeters enhances the physics reach of the experiment during the upcoming operation at increasing Large Hadron Collider luminosities. The new system, installed d…