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Highly Weak-light Sensitive and Dual-band Switchable Photodetector Based on CuI/Si Unilateral Heterojunction

无机材料学报 2024年第9期39卷 1063-1069页

作者： yang Jialin WANG Liangjun ruan Siyuan JIANG Xiulin yang Chang Key Laboratory of Polar Materials and Devices(MOE) Shanghai Center of Brain-inspired Intelligent Materials and DevicesDepartment of ElectronicsEast China Normal UniversityShanghai 200241China Institute of Intelligent Flexible Mechatronics Jiangsu UniversityZhenjiang 212013China Cell R&D Center JA Solar Holdings Co.LtdYangzhou 225000China

In recent years,copper iodide(CuI)is an emerging p-type wide bandgap semiconductor with high intrinsic Hall mobility,high optical absorption and large exciton binding ***,the spectral response and the photoelectric conversion efficiency are limited for CuI-based heterostructure devices,which is related to the difficulty in fabrication of high-quality CuI thin films on other *** this study,a p-CuI/n-Si photodiode has been fabricated through a facile solid-phase iodination *** the CuI thin film is polycrystalline with obvious structural defects,the CuI/Si diode shows a high weak-light sensitivity and a high rectification ratio of 7.6×10^(4),indicating a good defect *** is because of the unilateral heterojunction behavior of the formation of the p^(+)n *** this work,the mechanism of photocurrent of the p^(+)n diode has been studied *** monochromatic lasers with wavelengths of 400,505,635 and 780 nm have been selected for testing the *** zero-bias voltage,the device is a unilateral heterojunction,and only visible light can be absorbed at the Si *** the other hand,when a bias voltage of-3 V is applied,the photodiode is switched to a broader“UV-visible”band response ***,the detection wavelength range can be switched between the“Visible”and“UV-visible”bands by adjusting the bias ***,the obtained CuI/Si diode was very sensitive to weak light illumination.A very high detectivity of 10^(13)-1014 Jones can be achieved with a power density as low as 0.5μW/cm^(2),which is significantly higher than that of other Cu-based *** findings underscore the high application potential of CuI when integrated with the traditional Si industry.

关键词： er iodide heterojunction photodetector

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Genetic Engineered Ultrasound-Triggered Injectable Hydrogels for Promoting Bone Reconstruction

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Research 2024年第2期2023卷 431-447页

作者： Zhenyu Zhao Huitong ruan Aopan Chen Wei Xiong Mingzhu Zhang Ming Cai Wenguo Cui Department of Orthopaedics Shanghai Tenth People's HospitalSchool of MedicineTongji University No.301 Middle Yanchang RoadShanghai 200072China Department of Orthopaedics Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint DiseasesShanghai Institute of Traumatology and OrthopaedicsRuijin HospitalShanghai Jiao Tong University Schoolof Medicine197 Rujin 2nd RoadShanghai 200025China Department of Foot and Ankle Surgery Beijing Tongren HospitalCapital Medical University1 Dongjiao MinxiangBeijing 100730China

Genetic engineering technology can achieve specific gene therapy for a variety of diseases, but the current strategy still has some flaws, such as a complex system, single treatment, and large implantation trauma. Herein, the genetic engineering injectable hydrogels were constructed by ultrasonic technology for the first time to realize in vivo ultrasound-triggered in situ cross-linking and cell gene transfection, and finally complete in situ gene therapy to promote bone reconstruction. First, ultrasound-triggered calcium release was used to activate transglutaminase and catalyze the transamidation between fibrinogen. Simultaneously, liposome loaded with Zinc-finger E-box-binding homeobox 1 (ZEB1) gene plasmid (Lip-ZEB1) was combined to construct an ultrasound-triggered in situ cross-linked hydrogels that can deliver Lip-ZEB1. Second, ultrasound-triggered injectable hydrogel introduced ZEB1 gene plasmid into endothelial cell genome through Lip-ZEB1 sustained release, and then acted on the ZEB1/Notch signal pathway of cells, promoting angiogenesis and local bone reconstruction of osteoporosis through genetic engineering. Overall, this strategy provides an advanced gene delivery system through genetic engineered ultrasound-triggered injectable hydrogels.

关键词： sustained release linking

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Prediction of peritoneal free cancer cells in gastric cancer patients by golden-angle radial sampling dynamic contrast-enhanced magnetic resonance imaging

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第7期25卷 617-627页

作者： xueqing YIN Xinzhong ruan Yongmeng ZHU Yongfang YIN Rui HUANG Chao LIANG The First Affiliated Hospital of Ningbo University Ningbo 315000China Ningbo Medical Center Lihuili Hospital Ningbo 315000China

Objectiveperitoneal free cancer cells can negatively impact disease progression and patient outcomes in gastric cancer. This study aimed to investigate the feasibility of using golden-angle radial sampling dynamic contrast-enhanced magnetic resonance imaging (GRASP DCE-MRI) to predict the presence of peritoneal free cancer cells in gastric cancer *** enrolled patients were consecutively divided into analysis and validation groups. Preoperative magnetic resonance imaging (MRI) scans and perfusion were performed in patients with gastric cancer undergoing surgery, and peritoneal lavage specimens were collected for examination. Based on the peritoneal lavage cytology (PLC) results, patients were divided into negative and positive lavage fluid groups. The data collected included clinical and MR information. A nomogram prediction model was constructed to predict the positive rate of peritoneal lavage fluid, and the validity of the model was verified based on data from the verification *** was no statistical difference between the proportion of PLC-positive cases predicted by GRASP DCE-MR and the actual PLC test. MR tumor stage, tumor thickness, and perfusion parameter Tofts-Ketty model volume transfer constant (Ktrans) were independent predictors of positive peritoneal lavage fluid. The nomogram model featured a concordance index (C-index) of 0.785 and 0.742 for the modeling and validation groups, *** DCE-MR could effectively predict peritoneal free cancer cells in gastric cancer patients. The nomogram model constructed using these predictors may help clinicians to better predict the risk of peritoneal free cancer cells being present in gastric cancer patients.

关键词： Gastric cancer Magnetic resonance Golden-angle radial sampling Nomogram model Peritoneal free cancer cells

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Spontaneous coronary artery rupture after lung cancer surgery:A case report and review of literature

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World Journal of Cardiology 2024年第2期16卷 92-97页

作者： Ying-Ding ruan Jian-Wei Han Department of Thoracic Surgery The First People's Hospital of JiandeJiande 311600Zhejiang ProvinceChina

BACKGROUND Spontaneous coronary artery rupture(SCAR)is a rare and life-threatening complication after lung cancer *** present a case of SCAR following left upper lobectomy,successfully managed through emergency thoracotomy and coronary artery *** SUMMARY A 61-year-old male patient underwent left upper lobectomy and mediastinal lymph node dissection for lung *** surgery was performed using singleport video-assisted thoracoscopic surgery,and there were no observed complications during the ***,19 h after surgery,the patient experienced chest discomfort and subsequently developed severe symptoms,including nausea,vomiting,and a drop in blood *** measures were taken,leading to the diagnosis of *** patient underwent emergency thoracotomy and coronary artery ligation,successfully stopping the bleeding and stabilizing the *** postoperative complications,the patient made a successful recovery and was discharged from the *** SCAR is a rare but life-threatening complication following lung cancer *** thoracotomy has been shown to be a life-saving measure,while stenting is not the preferred initial approach.

关键词： Spontaneous coronary artery rupture Lung cancer Surgery Case report

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Diagnosing health in composite battery electrodes with explainable deep learning and partial charging data

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Energy and AI 2024年第2期16卷 256-268页

作者： Haijun ruan Niall Kirkaldy Gregory J.Offer Billy Wu Dyson School of Design Engineering Imperial College LondonSW72AZLondonUK Centre for E-Mobility and Clean Growth Research Coventry UniversityCoventryCV15FBUK Department of Mechanical Engineering Imperial College LondonSW72AZLondonUK The Faraday Institution Harwell Science and Innovation CampusOX110RADidcotUK

Lithium-ion batteries with composite anodes of graphite and silicon are increasingly being used. However, their degradation pathways are complicated due to the blended nature of the electrodes, with graphite and silicon degrading at different rates. Here, we develop a deep learning health diagnostic framework to rapidly quantify and separate the different degradation rates of graphite and silicon in composite anodes using partial charging data. The convolutional neural network (CNN), trained with synthetic data, uses experimental partial charging data to diagnose electrode-level health of tested batteries, with errors of less than 3.1% (corresponding to the loss of active material reaching ∼75%). Sensitivity analysis of the capacity-voltage curve under different degradation modes is performed to provide a physically informed voltage window for diagnostics with partial charging data. By using the gradient-weighted class activation mapping approach, we provide explainable insights into how these CNNs work;highlighting regions of the voltage-curve to which they are most sensitive. Robustness is validated by introducing noise to the data, with no significant negative impact on the diagnostic accuracy for noise levels below 10 mV, thus highlighting the potential for deep learning approaches in the diagnostics of lithium-ion battery performance under real-world conditions. The framework presented here can be generalised to other cell formats and chemistries, providing robust and explainable battery diagnostics for both conventional single material electrodes, but also the more challenging composite electrodes.

关键词： Lithium-ion battery Composite electrode Silicon Degradation diagnostic Explainable deep learning Partial charging

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A data-fusion-model method for state of health estimation of Li-ion battery packs based on partial charging curve

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Green Energy and Intelligent Transportation 2024年第5期3卷 1-12页

作者： Xingzi Qiang Wenting Liu Zhiqiang Lyu Haijun ruan Xiaoyu Li School of Internet Anhui UniversityHefei230039China Institute for Clean Growth&Future Mobility Coventry UniversityUK School of Mechanical Engineering Hebei University of TechnologyTianjin300130China

The estimation of State of Health(SOH)for battery packs used in Electric Vehicles(EVs)is a complex task with significant importance,accompanied by several *** study introduces a data-fusion model approach to estimate the SOH of battery *** approach utilizes dual Gaussian Process Regressions(GPRs)to construct a data-driven and non-parametric aging model based on charging-based Aging Features(AFs).To enhance the accuracy of the aging model,a noise model is established to replace the random ***,the statespace representation of the aging model is ***,the Particle Filter(PF)is introduced to track the unknown state in the aging model,thereby developing the data-fusion-model for SOH *** performance of the proposed method is validated through aging experiments conducted on battery *** simulation results demonstrate that the data-fusion model approach achieves accurate SOH estimation,with maximum errors less than 1.5%.Compared to conventional techniques such as GPR and Support Vector Regression(SVR),the proposed method exhibits higher estimation accuracy and robustness.

关键词： Li-ion battery pack State of health Data-fusion-model method Particle filter Gaussian process regression Support vector regression

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Fabrication of UV-Curing Linalool-Polysiloxane Hybrid Films with High Refractive Index and Transparency

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Journal of Renewable Materials 2024年第3期12卷 569-583页

作者： Wenqing Xiao Lewen Tan xunjun Chen Qiaoguang Li yunqing ruan College of Chemistry and Chemical Engineering Zhongkai University of Agriculture and EngineeringGuangzhou510225China R&D Department Guangzhou Silicon Core Material Technology Co.Ltd.Guangzhou510220China

In this article,a series of high refractive indices(1.50-1.53)thiol phenyl polysiloxane(TPS)were synthesized via hydrolytic sol-gel *** Fourier transform infrared spectra(FT-IR)and nuclear magnetic resonance spectra(NMR)results showed that TPS conformed to the predicted *** terpene linalool was exploited as photocrosslinker to fabricate UV-curing linalool-polysiloxane hybrid films(LPH)with TPS via photoinitiated thiol-ene *** rapidly cured under UV irradiation at the intensity of 80 mW/cm^(2) in 30 s,exhibiting good UV-curing *** optical transmittance of LPH in the wavelength of 300-800 nm was over 90%,exhibiting good optical *** water contact angle and water vapor permeability results showed that the introduction of phenyl groups enhance the hydrophobicity and water vapor barrier properties of *** results indicated the potential of LPHs in the applications of optical functional coatings.

关键词： UV-curing polysiloxane hybrid films high refractive index transparency

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Difluoromethyl phenoxathiinium salt: A new general and versatile difluoromethylating reagent with divergent ·CF_(2)H, CF_(2)H^(+), and :CF_(2) reactivities

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Science China Chemistry 2024年第3期67卷 953-962页

作者： yuan-Qing Gu Hong-Xin Long Dan-Dan Zhang Mei-Feng ruan Guo-Kai Liu School of Pharmacy Shenzhen University Medical SchoolShenzhen UniversityShenzhen 518055China

Development of practical and versatile electrophilic difluoromethylating reagent is still a grand challenge so far due to its inherent instability or low ***,we report the design and synthesis of difluoromethyl phenoxathiinium tetrafluoroborate(PT-CF_(2)H^(+)BF_(4)^(-)) as a novel difluoromethylating reagent,which proves to be a bench-stable,general,powerful and versatile reagent with divergent·CF_(2)H,CF_(2)H^(+),and:CF_(2) *** use of this reagent,we demonstrated a vast array of difluoromethyl radical transfer reactions via diverse pathways involving photocatalyst-free visible-light induction,visible-light photoredox catalysis and visible-light mediation single electron transfer of EDA ***,the green and highly effective CF_(2)H^(+) and:CF_(2) transfer reactions were also readily accomplished.

关键词： difluoromethyl phenoxathiinium salt versatile difluoromethylating reagent difluoromethyl radical difluoromthyl cation difluorocarbene

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A Note on a Multi-Dimensional Radiating Gas Model with Nonlinear Radiative Inhomogeneity

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Journal of Partial Differential Equations 2024年第2期37卷 166-186页

作者： CHEN yufeng ruan Lizhi WEI Jing School of Mathematics and Statistics and Hubei Key Lab–Math.Sci.Central China Normal UniversityWuhan 430079PR China

In this paper,we consider the Cauchy problem of a multi-dimensional radiating gas model with nonlinear radiative *** a model gives a good approximation to the radiative Euler equations,which are a fundamental system in radiative hydrodynamics with many practical applications in astrophysical and nuclear *** of our main motivations is to attempt to explore how nonlinear radiative inhomogeneity influences the behavior of entropy *** but different phenomena are observed on relaxation *** one hand,the same relaxation limit such as the hyperbolic-hyperbolic type limit is obtained,even for different *** the other hand,different relaxation limits including hyperbolic-hyperbolic type and hyperbolic-parabolic type limits are obtained,even for the same scaling if different conditions are imposed on nonlinear radiative inhomogeneity.

关键词： Radiating gas model nonlinear radiative inhomogeneity entropy solution global well-posedness relaxation limit

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Some discussions about the variable separating method for solving nonlinear models

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Chinese Physics B 2010年第5期19卷 21-28页

作者： ruan hang-yu Department of Physics Ningbo University

Through analysing the exact solution of some nonlinear models,the role of the variable separating method in solving nonlinear equations is *** find that rich solution structures of some special fields of these equation come from the nonzero seed ***,these nonzero seed solutions is likely to result in the divergent phenomen for the other field component of the same *** convergence and the signification of all field components should be discussed when someone solves the nonlinear equation using the variable separating method.

关键词： variable separating method nonzero seed solution nonlinear equation

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