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中国现代教育装备 2024年第1期 128-130,134页

作者：沈瑶高昕悦孙敏邹建龙西安交通大学电工电子教学实验中心陕西西安710049

动态电路在实际生活中应用广泛,精确测量动态电路的参数具有工程意义。采用线上线下混合式教学模式、仿真和实测相融合的实验方法,利用NI myDAQ虚拟实验平台测量动态电路参数,开拓了学生的思维,提高了学生的综合实验能力。

关键词：动态电路 NI myDAQ 时间常数阻尼常数

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矿用通风机叶片线激光测量数据优化方法研究

计量学报 2024年第3期45卷 440-446页

作者：李学哲申瑶曹艾王彦昕花忠旭田文宇华北科技学院应急装备学院河北省矿山设备安全监测重点实验室河北三河065201

测量模型的提取是矿用通风机叶片几何变形检测的关键,为了提高叶片测量模型的精度,提出一种基于最小二乘准则的线激光测量数据优化方法。首先,利用卡尔曼滤波算法实时处理线激光传感器原始测量数据,提高坐标测量精度,为后续模型构建提... 详细信息

测量模型的提取是矿用通风机叶片几何变形检测的关键,为了提高叶片测量模型的精度,提出一种基于最小二乘准则的线激光测量数据优化方法。首先,利用卡尔曼滤波算法实时处理线激光传感器原始测量数据,提高坐标测量精度,为后续模型构建提供精准数据;然后,采用三次多项式法、三次B样条法、高阶贝塞尔法分别拟合求解三个测量模型,并基于最小二乘准则评价各模型的显著性水平,从而优选出适合通风机叶片几何特征的测量模型;最后,进行了实验研究。结果表明,采用三次B样条函数构建叶片测量模型可以获得最佳的拟合效果,其显著性评价因子最小(小于0.05),本方法通过数据优化有效提高了叶片测量模型的精度,为后续通风机叶片几何评价提供一种有效的技术解决方案。

关键词：几何量计量矿用通风机叶片测量线激光数据优化最小二乘法

经皮椎体后凸成形术在围绝经期骨质疏松椎体骨折患者中的临床应用价值分析

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中国妇幼保健 2024年第14期39卷 2735-2738页

作者：沈蜜顾晓民杨永辉李海沈尧峰德清县第三人民医院杭州师范大学附属德清医院浙江湖州313201 杭州师范大学附属医院

目的探讨经皮椎体后凸成形术(PKP)在围绝经期骨质疏松椎体骨折患者中的临床应用价值分析。方法选取围绝经期骨质疏松性椎体压缩骨折患者106例,按随机数表法分为对照组和观察组,每组各53例。观察组采取经皮球囊扩张稚体后凸成形术,对照... 详细信息

目的探讨经皮椎体后凸成形术(PKP)在围绝经期骨质疏松椎体骨折患者中的临床应用价值分析。方法选取围绝经期骨质疏松性椎体压缩骨折患者106例,按随机数表法分为对照组和观察组,每组各53例。观察组采取经皮球囊扩张稚体后凸成形术,对照组采取保守治疗。比较两组在功能恢复优良率、疼痛缓解时间、下床活动时间、住院时间及院内医疗费用,治疗前和治疗后1周Cobb角与疼痛程度。结果经治疗,观察组功能恢复率优于对照组(P<0.05);观察组疼痛缓解时间(2.75±0.45)d、下床活动时间(2.71±0.82)d及住院时间(8.97±0.39)d均显著低于对照组(均P<0.05)。观察组医疗费用(2.97±0.62)万元较对照组高,差异有统计学意义(P<0.05)。进一步治疗后,观察组在Cobb角、椎体前缘高度以及椎体后缘高度方面显著低于对照组,分别为(15.87±4.37)、(18.97±2.39)mm和(22.96±2.10)mm,差异有统计学意义(P<0.05)。疼痛VAS评分方面,观察组低于对照组为(3.17±0.92)分,差异有统计学意义(P<0.05)。结论围绝经期妇女骨质疏松椎体骨折患者采用PKP创口小、疼痛缓解快、有效矫正畸形,在近期功能恢复明显优于保守治疗。但同时PKP的医疗费用高、对术者的要求更高,所以在基层医院中进行推广还需要时间。

关键词：围绝经期妇女骨质疏松椎体骨折经皮椎体后凸成形术保守疗法临床应用价值

Exploring the potential of olivine-containing copper-nickel slag for carbon dioxide mineralization in cementitious materials

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International Journal of Minerals,Metallurgy and Materials 2024年第3期31卷 562-573页

作者： Qianqian Wang Zequn yao Lijie Guo Xiaodong shen College of Materials Science and Engineering Nanjing Tech UniversityNanjing 211816China State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing 211816China BGRIMM Technology Group Beijing 100160China

Water-quenched copper-nickel metallurgical slag enriched with olivine minerals exhibits promising potential for the production of CO_(2)-mineralized cementitious *** this work,copper-nickel slag-based cementitious material(CNCM)was synthesized by using different chemical activation methods to enhance its hydration reactivity and CO_(2) mineralization *** water curing ages and carbonation conditions were explored related to their carbonation and mechanical properties ***,thermogravimetry differential scanning calorimetry and X-ray diffraction methods were applied to evaluate the CO_(2) adsorption amount and carbonation products of *** development of carbonated CNCM blocks was examined by backscattered electron imaging(BSE)with energy-dispersive X-ray *** showed that among the studied samples,the CNCM sample that was subjected to water curing for 3 d exhibited the highest CO_(2) sequestration amount of 8.51wt%at 80℃and 72 h while presenting the compressive strength of 39.07 *** result indicated that 1 t of this CNCM can sequester 85.1 kg of CO_(2) and exhibit high compressive *** the addition of citric acid did not improve strength development,it was beneficial to increase the CO_(2) diffusion and adsorption amount under the same carbonation conditions from BSE *** work provides guidance for synthesizing CO_(2)-mineralized cementitious materials using large amounts of metallurgical slags containing olivine minerals.

关键词： copper-nickel slag fayalite CO_(2)sequestration cementitious material admixtures carbonation conditions

不同血液透析滤器对发生急性肿瘤溶解综合征的血液系统肿瘤患者的细胞因子吸附作用:一项单中心回顾性研究

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中国血液净化 2024年第5期23卷 356-359页

作者：张小攀沈耀耀尤冰陈广仁陈凤玲苏州大学附属第一医院血液透析中心苏州215000 苏州大学附属第一医院血液科苏州215000

目的回顾性研究不同血液透析滤器对发生急性肿瘤溶解综合征的血液系统肿瘤患者的细胞因子吸附作用。方法回顾性分析2020年9月─2023年9月于苏州大学附属第一医院血液科住院期间发生急性肿瘤溶解综合征并需要联合连续性肾脏替代治疗(cont... 详细信息

目的回顾性研究不同血液透析滤器对发生急性肿瘤溶解综合征的血液系统肿瘤患者的细胞因子吸附作用。方法回顾性分析2020年9月─2023年9月于苏州大学附属第一医院血液科住院期间发生急性肿瘤溶解综合征并需要联合连续性肾脏替代治疗(continuous renal replacement therapy,CRRT)且临床资料完整的57例患者。依据采用的滤器型号不同分为观察组和对照组。观察组采用甲基丙烯磺酸钠-丙烯腈共聚物(acrylonitrile and sodium methallyl sulfonate copolymer,AN)69-OXIRIS滤器,对照组采用AN69-ST100滤器。结果本研究发现2种滤器在肾脏基础替代治疗中的作用基本一致。但观察组与对照组相比,白细胞介素(interleukin,IL)-6(Z=8.937,P<0.001)、IL-1b(t=2.177,P=0.031)、IL-10(t=4.065,P=0.009)、IL-17A(t=4.382,P=0.013)、干扰素(interferon,IFN)-γ(t=6.812,P=0.002)方面下降,差异具有统计学意义。结论在血液系统肿瘤治疗期间发生急性肿瘤溶解综合征的患者中,CRRT时选择AN69-OXIRIS滤器可以更好的吸附细胞因子,有助于改善患者的预后。

关键词：急性肿瘤溶解综合征细胞因子血液透析滤器

面向电气工程实际的多物理场数值仿真开放实验教学

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中国现代教育装备 2024年第15期 5-7,12页

作者：赵彦珍陈锋沈瑶王超高昕悦西安交通大学电气工程学院陕西西安710049

在电气工程专业本科生电磁场实验教学中,开展面向电气工程实际的多物理场数值仿真开放实验教学,对培养学生的工程观念、综合应用多学科专业知识解决实际电气工程问题的能力具有重要的意义。以电力系统中广泛应用的电力设备——干式空心... 详细信息

在电气工程专业本科生电磁场实验教学中,开展面向电气工程实际的多物理场数值仿真开放实验教学,对培养学生的工程观念、综合应用多学科专业知识解决实际电气工程问题的能力具有重要的意义。以电力系统中广泛应用的电力设备——干式空心电抗器为研究对象,阐述了开设干式空心电抗器电、磁、热以及力场等多物理场数值仿真开放实验的目的、内容及实施过程。这些开放实验取得了良好的教学效果。

关键词：开放实验电气工程多物理场数值仿真

Why Can We Copy Classical Information？

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Chinese Physics Letters 2011年第1期28卷 30-31页

作者： shen yao Key Laboratory for Atomic and Molecular Nanosciences and Department of Physics Tsinghua University Beijing 100084 Tsinghua National Laboratory for Information Science and Technology Tsinghlza University Beijing 100084

It is pointed out that the noneloning theorem in quantum mechanics also holds for unknown state in linear classical physics. The apparent capability of copying of a classical state is essentially the capability of perfect measurement in classical physics. The difference in copying- between quantum and classical physics is the difference in measurement between the two theories. A classical copying process is the combined action of measurement of an unknown state and the preparation of this state onto another system. Hence perfect measurability in classical physics enables the copying of a classical state.

关键词： Physics Measurement

Comparison of three fundus inspection methods during phacoemulsification in diabetic white cataract

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International Journal of Ophthalmology(English edition) 2023年第11期16卷 1782-1788页

作者： Shu Su Jian Wu Min Ji Yu Guan yao shen Huai-Jin Guan Eye Institute Affiliated Hospital of Nantong UniversityNantong 226001Jiangsu ProvinceChina

AIM:To investigate whether Wild Field Imaging System(WFIS SW-8000),25G endoilluminator,and intraoperative optical coherence tomography(iOCT)can perform realtime screening and diagnosing in patients with suspicious diabetic retinopathy(DR)during phacoemulsification,especially in cases of white ***:A cross-sectional study was carried out.A total of 204 dense diabetic cataractous eyes of 204 patients with suspected DR treated from April 2020 to March 2021 were *** combined with intraocular lens implantation was *** the removal of the lens opacity,the 25G endoilluminator,fundus photography,and iOCT were performed *** coherence tomography(OCT)and/or fundus fluorescein angiography(FFA)were used to verify the fundus findings *** and postoperative results were compared to verify the accuracy of intraoperative diagnosis in each ***:Intraoperative and postoperative examinations revealed 58 and 62 eyes with DR,respectively(positive rate,28.43%and 30.39%,respectively).During the phacoemulsification,WFIS SW-8000 detected 44 eyes with DR(the detection rate,70.97%);25G endo-illuminator found 56 eyes with DR(the detection rate,90.32%);iOCT found 46 eyes with DR(the detection rate,74.19%);and 58 eyes with DR were found by combining the three methods(the detection rate,93.55%).There were statistically significant differences in the diagnostic sensitivity for DR among the methods(χ^(2)=16.36,P=0.001).CONCLUSION:WFIS SW-8000,25G endo-illuminator,iOCT,and especially their combination can be used to inspect the fundus and detect DR intraoperatively;they are helpful for the timely diagnosis and treatment of DR in patients with dense cataract.

关键词： diabetic white cataract fundus inspection phacoemulsification diabetic retinopathy

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面向新工科建设的电路课程教学改革

中国现代教育装备 2024年第3期 75-77页

作者：赵彦珍沈瑶王超高昕悦罗先觉西安交通大学陕西西安710049

基于新工科人才培养要求,开展了电路课程教学改革。针对电路课程教学现状,将实际电路工程问题融入教学内容之中,培养学生的工程科技素养;将仿真技术引入电路课程教学过程,引导学生进行高效、有益于创新能力形成的学习;采用线上线下混合... 详细信息

基于新工科人才培养要求,开展了电路课程教学改革。针对电路课程教学现状,将实际电路工程问题融入教学内容之中,培养学生的工程科技素养;将仿真技术引入电路课程教学过程,引导学生进行高效、有益于创新能力形成的学习;采用线上线下混合式教学模式,充分开发学生的学习潜能,培养学生的终身学习能力和创新思维能力。教学改革取得了很好的效果,提高了教师的教学水平和教学质量。

关键词：新工科电路课程工程问题仿真技术线上线下

Intravitreal conbercept injection with panretinal photocoagulation for high-risk proliferative diabetic retinopathy with vitreous hemorrhage

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International Journal of Ophthalmology(English edition) 2024年第6期17卷 1066-1072页

作者： yao Xu Qing Ye Wei shen Department of Ophthalmology the Fourth Affiliated Hospital of Soochow UniversitySuzhou 215000Jiangsu ProvinceChina Department of Ophthalmology Suzhou Kowloon HospitalShanghai Jiao Tong University School of MedcineSuzhou 215000Jiangsu ProvinceChina Department of Ophthalmology the First Affiliated Hospital of Soochow UniversitySuzhou 215000Jiangsu ProvinceChina

AIM:To assess the clinical efficacy and safety of combining panretinal photocoagulation(PRP)with intravitreal conbercept(IVC)injections for patients with high-risk proliferative diabetic retinopathy(HR-PDR)complicated by mild or moderate vitreous hemorrhage(VH),with or without diabetic macular edema(DME).METHODS:Patients diagnosed with VH with/without DME secondary to HR-PDR and received PRP combined with IVC injections were recruited in this retrospective *** establishing the patient’s diagnosis,an initial IVC was performed,followed by prompt administration of *** cases who significant bleeding persisted and impeded the laser operation,IVC was sustained before supplementing with *** the completion of PRP,patients were meticulously monitored for a minimum of six *** therapy and IVC injections were judiciously adjusted based on fundus fluorescein angiography(FFA)*** effect and the incidence of adverse events were ***:Out of 42 patients(74 eyes),29 were male and 13 were female,with a mean age of 59.17±12.74y(33-84y).The diabetic history was between 1wk and 26y,and the interval between the onset of visual symptoms and diagnosis of HR-PDR was *** affected eye received 2.59±1.87(1-10)IVC injections and underwent 5.5±1.02(4-8)sessions of *** these,68 eyes received PRP following 1 IVC injection,5 eyes after 2 IVC injections,and 1 eye after 3 IVC *** absorption of VH was observed in all 74 eyes 5-50wk after initial treatment,with resolution of DME in 51 eyes 3-48wk after initial treatment.A newly developed epiretinal membrane was noted in one *** acuity significantly improved in 25 *** complications such as glaucoma,retinal detachment,or endophthalmitis were ***:The study suggests that the combination of PRP with IVC injections is an effective and safe modality for treating diabetic VH in patients with HR-PDR.

关键词： conbercept panretinal photocoagulation high-risk proliferative diabetic retinopathy vitreous hemorrhage