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Chinese Physics B 2021年第1期30卷 239-247页

作者： Shi-Rong Xu Xin-Hong Jia Hui-liang Ma Jia-Bing Lin wen-yan liang Yu-Lian yang College of Physics and Electronic Engineering Sichuan Normal UniversityChengdu 610101China

Simultaneous bandwidth(BW) enhancement and time-delay signature(TDS) suppression of chaotic lasing over a wide range of parameters by mutually coupled semiconductor lasers(MCSLs) with random optical injection are proposed and numerically investigated. The influences of system parameters on TDS suppression(characterized by autocorrelation function(ACF) and permutation entropy(PE) around characteristic time) and chaos BW are investigated. The results show that, with the increasing bias current, the ranges of parameters(detuning and injection strength) for the larger BW(> 20 GHz) are broadened considerably, while the parameter range for optimized TDS( 20 GHz)and perfect TDS suppression. In addition, the system can generate two-channel high-speed truly physical random number sequences at 200 Gbits/s for each channel.

关键词： random distributed feedback-based optical injection two-channel chaos lasing bandwidth enhancement and time-delay signature suppression physical random number generation

Incidence,prognosis,and risk factors of sepsis-induced cardiomyopathy

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World Journal of Clinical Cases 2021年第31期9卷 9452-9468页

作者： yan-wen liang You-Feng Zhu Rui Zhang Min Zhang Xiao-Ling Ye Jian-Rui Wei Department of Intensive Care Unit Guangzhou Red Cross HospitalGuangzhou 510220Guangdong ProvinceChina Department of Geriatrics The Affiliated Hospital of Qingdao UniversityQingdao 270000Shandong ProvinceChina Guangzhou Women and Children’s Medical Center Guangzhou 510000Guangdong ProvinceChina

BACKGROUND At present,large-scale studies on the clinical characteristics of sepsis-induced cardiomyopathy(SIC)are *** To investigate the clinical characteristics of *** Based on the analysis of the MIMIC-III public database,we performed a largescale retrospective study involving sepsis patients who were admitted to the intensive care unit(ICU)and had no concomitant cardiac *** used propensity score matching analysis and multivariate logistic regression to ensure the robustness of the *** primary outcome was hospital mortality,and the secondary outcomes included the number of patients who received mechanical ventilation or renal replacement therapy during their hospital stay,the number of patients administered with vasopressors,the length of ICU stay,and the length of hospital *** In the present study,after screening 38605 patients,3530 patients with sepsis were included.A total of 997 patients met the SIC diagnostic criteria,and the incidence of SIC was 28.20%(95%confidence interval[CI]:26.80%-29.70%).Compared to patients in the non-SIC group,patients in the SIC group were of older age and had a higher Simplified Acute Physiology Score(SAPS)-Ⅰ score,SAPS-Ⅱ score,and Elixhauser comorbidity index(ECI).A total of 367(36.8%)of 997 patients in the SIC group and 818(32.3%)of 2533 patients in the non-SIC group died in the hospital,which resulted in a significant between-group difference(odds ratios=1.22,95%CI:1.05-1.42;P=0.011).For the secondary outcomes,more patients in the SIC group received mechanical ventilation and *** logistic regression analysis showed that age,male sex,ECI,hemoglobin level,diabetes,and mechanical ventilation use on the first day of ICU admission were risk factors for *** Compared with non-SIC patients,hospital mortality is higher in SIC patients.

关键词： Sepsis-induced cardiomyopathy Sepsis Septic shock Incidence Hospital mortality MIMIC-Ⅲ

Drug-coated balloons for treating de novo lesions in large coronary vessels:A case report

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World Journal of Clinical Cases 2023年第20期11卷 4920-4925页

作者： Zhi-Qiang Zhang Yi-Ran Qin Man Yin Xue-Heng Chen Lei Chen wen-yan liang Xi-Qing Wei Jining Key Laboratory for Diagnosis and Treatment of Cardiovascular Diseases Jining Medical UniversityAffiliated Hospital of Jining Medical UniversityJining 272000Shandong ProvinceChina Cheeloo College of Medicine Shandong UniversityJinan 250000Shandong ProvinceChina Jining Medical University Affiliated Hospital of Jining Medical UniversityJining 272000Shandong ProvinceChina

BACKGROUND Percutaneous transluminal coronary angioplasty,while an effective intervention,can frequently lead to acute occlusion with severe *** clinical trials have demonstrated the efficacy of drug-coated balloons(DCB)in treating acute coronary artery occlusion and in preventing restenosis,there has been limited exploration on the use of DCB in treating de novo lesions in large ***,DCB are only recommended for patients with small vessel lesions and in-stent restenosis lesions,those at high risk of bleeding,and other special groups of *** SUMMARY This report presents a case of successful drug-coated balloon treatment of de novo lesions in large coronary ***,the patient demonstrated favorable recovery,with subsequent examination results revealing no significant differences from the previous *** The successful treatment of the patient in our case highlights the potential of DCB in the treatment of de novo lesions in large coronary vessels.

关键词： Drug-coated balloons De novo lesions Large coronary vessels Coronary artery disease Percutaneous coronary intervention Case report

Distributed analysis of forward stimulated Brillouin scattering for acoustic impedance sensing by extraction of a 2nd-order local spectrum

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Chinese Physics B 2021年第8期30卷 375-380页

作者： Yu-Lian yang Jia-Bing Lin Li-Ming Liu Xin-Hong Jia wen-yan liang Shi-Rong Xu Li Jiang College of Physics and Electronic Engineering Sichuan Normal UniversityChengdu 610101China

Distributed fiber sensors based on forward stimulated Brillouin scattering(F-SBS)have attracted special attention because of their capability to detect the acoustic impedance of liquid material outside ***,the reported results were based on the extraction of a 1st-order local spectrum,causing the sensing distance to be restricted by pump ***,a novel post-processing technique was proposed for distributed acoustic impedance sensing by extracting the 2nd-order local spectrum,which is beneficial for improving the sensing signal-to-noise ratio(SNR)significantly,since its pulse energy penetrates into the fiber more *** a proof-of-concept,distributed acoustic impedance sensing along~1630 m fiber under moderate spatial resolution of~20 m was demonstrated.

关键词： distributed acoustic impedance sensing forward stimulated Brillouin scattering(F-SBS) 2nd-order local spectrum

Isolation of a novel member of small G protein superfamily and its expression in colon cancer

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World Journal of Gastroenterology 2003年第8期9卷 1719-1724页

作者： Wei yan wen-liang Wang Feng Zhu Sheng-Quan Chen Qing-Long Li Li Wang, Department of Patholology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China Department of Patholology Xijing Hospital Fourth Military Medical University Xi'an 710032 Shaanxi Province China.

AIM: APMCF1 is a novel human gene whose transcripts are up-regulated in apoptotic MCF-7 cells. In order to learn more about this gene′s function in other tumors, we cloned its full length cDNA and prepared its polyclonal antibody to investigate its expression in colon cancers with ***: With the method of 5′ rapid amplification of cDNA end (RACE) and EST assembled in GenBank, we extended the length of APMCF1 at 5′ end. Then the sequence encoding the APMCF1 protein was amplified by RT-PCR from the total RNA of apoptotic MCF-7 cells and cloned into the prokaryotic expression vector pGEX-KG to construct recombinant expression vector pGEX-APMCF1. The GSTAPMCF1 fusion protein was expressed in E. coli and used to immunize rabbits to get the rabbit anti-APMCF1 serum. The specificity of polyclonal anti-APMCF1 antibody was determined by Western blot. Then we investigated the expression of Apmcf1 in colon cancers and normal colonic mucosa with ***: A cDNA fragment with a length of 1 745 bp was obtained. APMCF1 was mapped to chromosome 3q22.2and spanned at least 14.8 kb of genomic DNA with seven exons and six introns contained. Bioinformatic analysis showed the protein encoded by APMCF1 contained a small GTP-binding protein (G proteins) domain and was homologous to mouse signal recognition particle receptor β(SRβ). A coding region covering 816 bp was cloned and polyclonal anti-APMCF1 antibody was prepared *** immunohistochemistry study showed that APMCF1 had a strong expression in colon ***: APMCF1 may be the gene coding human signal recognition particle receptor β and belongs to the small-G protein superfamily. Its strong expression pattern in colon cancer suggests it may play a role in colon cancer development.

关键词：结肠癌 MCF-7细胞 APMCF1基因 G蛋白超家族

Elastic-viscoplastic field at mixed-mode interface crack-tip under compression and shear

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Applied Mathematics and Mechanics(English Edition) 2014年第7期35卷 887-896页

作者：梁文彦王振清刘方刘晓铎 Smart Structures and Advanced Composites Laboratory College of Aerospace and Civil Engineering of Harbin Engineering University

For a compression-shear mixed mode interface crack, it is difficult to solve the stress and strain fields considering the material viscosity, the crack-tip singularity, the frictional effect, and the mixed loading level. In this paper, a mechanical model of the dynamic propagation interface crack for the compression-shear mixed mode is proposed using an elastic-viscoplastic constitutive model. The governing equations of propagation crack interface at the crack-tip are given. The numerical analysis is performed for the interface crack of the compression-shear mixed mode by introducing a displacement function and some boundary conditions. The distributed regularities of stress field of the interface crack-tip are discussed with several special parameters. The final results show that the viscosity effect and the frictional contact effect on the crack surface and the mixed-load parameter are important factors in studying the mixed mode interface crack- tip fields. These fields are controlled by the viscosity coefficient, the Mach number, and the singularity exponent.

关键词： compression-shear mixed mode interface crack dynamic propagation,viscosity effect elastic-viscoplastic material friction effect mixed-load parameter

Morphology engineering of ZnO micro/nanostructures under mild conditions for optoelectronic application

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 498-503页

作者： liang Chu Haoyu Shen Hudie Wei Hongyu Chen Guoqiang Ma wensheng yan Institute of Carbon Neutrality and New Energy&School of Electronics and Information Hangzhou Dianzi UniversityHangzhou 310018China School of Applied Physics and Materials Wuyi UniversityJiangmen 529020China

Zinc oxide(ZnO)serves as a crucial functional semiconductor with a wide direct bandgap of approximately 3.37 *** reaction is commonly used in the synthesis of ZnO micro/nanostructures,given its low cost,simplicity,and easy ***,ZnO morphology engineering has become desirable through the alteration of minor conditions in the reaction process,particularly at room *** this work,ZnO micro/nanostructures were synthesized in a solution by varying the amounts of the ammonia added at low temperatures(including room temperature).The formation of Zn^(2+)complexes by ammonia in the precursor regulated the reaction rate of the morphology engineering of ZnO,which resulted in various structures,such as nanoparticles,nanosheets,microflowers,and single ***,the obtained ZnO was used in the optoelectronic application of ultraviolet detectors.

关键词： morphology engineering low temperature ZnO nanosheets microflowers ultraviolet detector

基于改进麻雀搜索算法优化BP神经网络的农业碳排放预测

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环境科学 2024年第12期45卷 6818-6827页

作者：苏子龙严文亮李慧敏高林燕寿文琪吴军南京大学环境学院污染控制与资源化研究国家重点实验室南京210023 光明食品集团上海农场有限公司盐城224151

农业碳排放预测能够为农业领域实现碳达峰与碳中和目标的规划提供理论依据和数据支持.为了优化现有的农业碳排放预测方法,以上海农场为例开展农业碳排放预测研究.采用排放因子法核算了上海农场2011~2021年碳排放总量,基于碳排放核算结... 详细信息

农业碳排放预测能够为农业领域实现碳达峰与碳中和目标的规划提供理论依据和数据支持.为了优化现有的农业碳排放预测方法,以上海农场为例开展农业碳排放预测研究.采用排放因子法核算了上海农场2011~2021年碳排放总量,基于碳排放核算结果构建了以种植业GDP、养殖业GDP和渔业GDP为指标的BP神经网络预测模型,并采用改进麻雀搜索算法对模型进行优化,最终利用优化后的BP神经网络模型对上海农场未来碳排放进行预测.结果表明,改进麻雀搜索算法优化BP神经网络(TGSSA-BPNN)对于上海农场碳排放的预测结果准确率为96.14%,均方根误差为1.21万t·a^(-1),可决系数R2值为0.995 2,模型预测结果的准确度高,拟合效果良好;与优化前模型相比,TGSSA-BPNN模型多次运行结果的准确率稳定在95%左右,均方根误差稳定在20 000 t·a^(-1)以下,R2值稳定在0.99以上,改进麻雀搜索算法提高了神经网络预测结果的准确性与稳定性,优化效果明显.对于上海农场未来碳排放的预测结果表明,养殖业对于碳排放总量的影响起到了主导地位,控制养殖业规模可有效控制碳排放总量.

关键词：农业碳排放预测模型 BP神经网络麻雀搜索算法 k折交叉验证 Tent混沌映射高斯变异

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板坯密度对软木板热压过程中传热的影响

西北林学院学报 2012年第5期27卷 212-216页

作者：晏文亮邱增处西北农林科技大学机械与电子工程学院陕西杨陵712100

采用先进的温度在线测试方法,在不施加胶黏剂的情况下,研究热压板坯的密度对软木板热压过程中传热的影响。结果表明,软木板热压过程中芯层温度变化曲线可分为4段,即温度几乎不上升的短暂恒温段、水分汽化前的快速升温段、水分汽化时的... 详细信息

采用先进的温度在线测试方法,在不施加胶黏剂的情况下,研究热压板坯的密度对软木板热压过程中传热的影响。结果表明,软木板热压过程中芯层温度变化曲线可分为4段,即温度几乎不上升的短暂恒温段、水分汽化前的快速升温段、水分汽化时的恒温段、水分汽化后的慢速升温段;随着板材密度的增加恒温段持续时间延长;快速升温段表芯层中心点的温度随着密度的增加,升温速度变慢但程度不同;随着密度的增加板材芯层汽化温度升高,汽化段时间延长;芯层中心点达到100℃的时间也随密度的增加而增加。

关键词：软木板热压密度传热

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蓄能落锤式动静组合加载试验系统研制及应用

实验力学 2018年第1期33卷 141-149页

作者：温彦凯梁冰孙维吉辽宁工程技术大学力学与工程学院

针对深部矿井中煤岩所处的高应力、强开采扰动等复杂的赋存环境特点,设计并研发蓄能落锤式动静组合加载试验系统,本文详细介绍了该系统的结构特点、技术指标及功能等。该系统能够分别独立向试样施加轴向冲击载荷、轴向静载荷及侧向静载... 详细信息

针对深部矿井中煤岩所处的高应力、强开采扰动等复杂的赋存环境特点,设计并研发蓄能落锤式动静组合加载试验系统,本文详细介绍了该系统的结构特点、技术指标及功能等。该系统能够分别独立向试样施加轴向冲击载荷、轴向静载荷及侧向静载荷,实现试样不同动静组合加载。该系统所用试样尺寸大,向试样施加的冲击载荷更接近现场实际。采用冲击力传感器及动态应变仪等高精度传感器进行实时监测,记录试样应变及所受冲击载荷。利用该系统对煤样进行了相同轴向载荷与不同冲击载荷共同作用下的动静组合加载试验,实时采集煤样冲击过程中力与应变数据。通过绘制冲击过程煤样应力应变曲线,分析不同动静组合加载下煤样应力及应变的变化特点,通过观察煤样形态,分析煤样的破坏变形特征,初步研究不同动静组合条件下煤样的破坏变形规律。该系统的研制丰富了深部高应力、强扰动等环境下岩石力学性质的研究手段,可为防治冲击地压灾害提供科学的试验基础。

关键词：岩石力学冲击地压动静组合加载试验系统