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基于ISD1420的语音编辑器设计

现代电子技术 2010年第6期33卷 51-54页

作者：张仕海何永洪张仔兵谢云波重庆信息技术职业学院重庆404001 重庆邮电大学通信学院重庆400065

基于ISD1420芯片,给出一种利用单片机89C51控制的语音编辑器,分析该系统的构成、硬件方案、用户界面以及软件方案。首先给出整个系统的总体构成以及框图,同时给出一个硬件系统的设计方案和软件流程,也给出了一个简要的方法去实现用户界... 详细信息

基于ISD1420芯片,给出一种利用单片机89C51控制的语音编辑器,分析该系统的构成、硬件方案、用户界面以及软件方案。首先给出整个系统的总体构成以及框图,同时给出一个硬件系统的设计方案和软件流程,也给出了一个简要的方法去实现用户界面。语音编辑器具有分段、录音、播放、组合播放等基本的语音编辑功能,具有MIC与线路录音两种模式,利用该方法设计的语音编辑器既可以单独用来对音频设备进行语音编辑,也可以以模块的形式加入到其他设备上。

关键词： ISD1420 语音编辑软件方案硬件方案用户界面

不同强化喂养方式对早产极低出生体重儿营养代谢及生长速率的影响

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中国儿童保健杂志 2024年第1期32卷 84-88页

作者：宁月罗丽艳段江谢云波齐志业张彩营杨丽钟庆华昆明医科大学第一附属医院新生儿科云南昆明650032 大理州妇幼保健院新生儿科

目的探讨不同强化喂养方式对早产极低出生体重儿(VLBWI)营养代谢及生长速率的影响,为改善早产儿的预后提供新思路。方法纳入2019年1月—2020年12月昆明医科大学第一附属医院新生儿科收治的早产VLBWI 115例,根据喂养方式分为强化母乳喂养... 详细信息

目的探讨不同强化喂养方式对早产极低出生体重儿(VLBWI)营养代谢及生长速率的影响,为改善早产儿的预后提供新思路。方法纳入2019年1月—2020年12月昆明医科大学第一附属医院新生儿科收治的早产VLBWI 115例,根据喂养方式分为强化母乳喂养组(HFM组)、混合喂养组、早产儿配方奶喂养组(PF组),分析不同的喂养方式对早产VLBWI的营养代谢、生长速率等的影响。结果1)HFM组住院时间短于PF组、混合喂养组(t=7.185、6.924,P<0.05);2)住院期间HFM组并发坏死性小肠结肠炎(NEC)的比例低于PF组(P<0.05),住院期间HFM组并发晚发型败血症(LOS)、宫外生长发育迟缓(EUGR)的比例低于PF组(χ^(2)=5.030、4.147,P<0.05);并发LOS的比例低于混合喂养组(χ^(2)=6.589,P<0.05);3)住院期间HFM组并发腹胀、便血、嗜酸性粒细胞增高比例低于PF组(P<0.05),混合喂养组并发腹胀比例低于PF组(P<0.05);4)出院时HFM组体重、身长增长速率均高于混合喂养组(t=3.722、0.425,P<0.001)及PF组(t=6.015、0.496,P<0.001)。结论强化母乳喂养能更有效提高早产VLBWI的生长速率,改善营养代谢,减少早产儿相关并发症及喂养不良反应,更安全有效。

关键词：早产儿极低出生体重喂养营养代谢生长速率

Multi-layer multi-pass friction rolling additive manufacturing of Al alloy:Toward complex large-scale high-performance components

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 425-438页

作者： Haibin Liu Run Hou Chenghao Wu Ruishan xie Shujun Chen College of Mechanical&Energy Engineering Beijing University of TechnologyBeijing 100124China Chongqing Research Institute of Beijing University of Technology Chongqing 401121China

At present,the emerging solid-phase friction-based additive manufacturing technology,including friction rolling additive man-ufacturing(FRAM),can only manufacture simple single-pass *** this study,multi-layer multi-pass FRAM-deposited alumin-um alloy samples were successfully prepared using a non-shoulder tool *** material flow behavior and microstructure of the over-lapped zone between adjacent layers and passes during multi-layer multi-pass FRAM deposition were studied using the hybrid 6061 and 5052 aluminum *** results showed that a mechanical interlocking structure was formed between the adjacent layers and the adja-cent passes in the overlapped center *** friction and rolling of the tool head led to different degrees of lateral flow and plastic deformation of the materials in the overlapped zone,which made the recrystallization degree in the left and right edge zones of the over-lapped zone the highest,followed by the overlapped center zone and the non-overlapped *** tensile strength of the overlapped zone exceeded 90%of that of the single-pass deposition *** is proved that although there are uneven grooves on the surface of the over-lapping area during multi-layer and multi-pass deposition,they can be filled by the flow of materials during the deposition of the next lay-er,thus ensuring the dense microstructure and excellent mechanical properties of the overlapping *** multi-layer multi-pass FRAM deposition overcomes the limitation of deposition width and lays the foundation for the future deposition of large-scale high-performance components.

关键词： aluminum alloy additive manufacturing solid-state friction stir welding multi-layer multi-pass

Superhydrophobic and corrosion-resistant siloxane-modified MgAl-LDHs coatings on magnesium alloy prepared under mild conditions

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 450-463页

作者： Wenxi Zhang Zhangzelong Zhuo Dan Xu Liang Wu Zhihui xie Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province College of Chemistry and Chemical EngineeringChina West Normal UniversityNanchong 637002China College of Materials Science and Engineering/National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China

We have developed a superhydrophobic and corrosion-resistant LDH-W/PFDTMS composite coating on the surface of Mg *** composite comprised a tungstate-intercalated(LDH-W)underlayer that was grown at low temperature(relative to hydrothermal reaction conditions)under atmospheric pressure and an outer polysiloxane layer created from a solution containing perfluorodecyltrimethoxysilane(PFDTMS)using a simple immersion *** successful intercalation of tungstate into the LDH phase and the following formation of the polysiloxane layer were confirmed through X-ray diffraction(XRD),Fourier transform infrared(FTIR)spectroscopy,and X-ray photoelectron spectroscopy(XPS).The corrosion resistance of the LDH-W film,both before and after the PFDTMS modification,was evaluated using electrochemical impedance spectroscopy(EIS),Tafel curves,and immersion *** results showed that Mg coated with LDH-W/PFDTMS exhibited significantly enhanced corrosion protection compared to the unmodified LDHW film,with no apparent signs of corrosion after exposure to 3.5wt%NaCl solution for 15 ***,the LDH-W/PFDTMS coating demonstrated superior superhydrophobicity and self-cleaning properties against water and several common beverages,as confirmed by static contact angle and water-repellency *** results offer valuable insights into preparing superhydrophobic and corrosion-resistant LDH-based composite coatings on Mg alloy surfaces under relatively mild reaction conditions.

关键词： Mg alloy corrosion coating layered double hydroxide

pH对锌离子自交联丙烯酸酯乳液稳定性的影响

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上海涂料 2020年第6期58卷 13-15页

作者：王虎军高圩杨斯盛谢云博上海金狮化工有限公司上海201515

探究了pH对一种锌离子与羧基室温自交联丙烯酸酯乳液聚合稳定性的影响,分别考察了底液pH、预乳化液pH和滴加锌铵溶液前pH对该乳液体系聚合稳定性的影响。结果表明,底液pH为7~8时,乳液聚合稳定性较好,而底液pH在8时,乳液聚合稳定性较差;... 详细信息

探究了pH对一种锌离子与羧基室温自交联丙烯酸酯乳液聚合稳定性的影响,分别考察了底液pH、预乳化液pH和滴加锌铵溶液前pH对该乳液体系聚合稳定性的影响。结果表明,底液pH为7~8时,乳液聚合稳定性较好,而底液pH在8时,乳液聚合稳定性较差;预乳化液pH升高后,乳液聚合稳定性明显变差;滴加锌铵溶液前,乳液pH>7时,乳液聚合稳定性较好,而其pH<7时,乳液聚合稳定性较差。

关键词： pH 锌离子丙烯酸酯乳液聚合稳定性

Mini-CEX及DOPS在儿科实习生培养与考核中的应用探索

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中国高等医学教育 2021年第10期 11-13页

作者：钟庆华谢云波齐志业宁月段江昆明医科大学第一附属医院云南昆明650032

目的:探讨Mini-CEX及DOPS在儿科实习生培养与考核中的应用及价值;结果:实验组临床诊断、沟通技能、人文关怀、组织效能与对照组比较差异均有统计学意义(P<0.05);实验组操作前准备、无菌操作、操作规范、寻求帮助、操作后处理、沟通技巧... 详细信息

目的:探讨Mini-CEX及DOPS在儿科实习生培养与考核中的应用及价值;结果:实验组临床诊断、沟通技能、人文关怀、组织效能与对照组比较差异均有统计学意义(P<0.05);实验组操作前准备、无菌操作、操作规范、寻求帮助、操作后处理、沟通技巧、爱伤观念、整体表现与对照组比较差异均有统计学意义(P<0.05);实验组学生满意度明显高于对照组,差异有统计学意义(P<0.05)。结论:在儿科临床实习中联合Mini-CEX及DOPS进行培养与考核是可行的,可提高教学质量和教学满意度,达到提高医学生临床能力的目的。

关键词： Mini-CEX DOPS 评价反馈儿科实习

烤烟烘烤过程中苯丙氨酸及其主要降解产物的变化

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山东农业科学 2022年第8期54卷 87-92页

作者：殷鸿飞雷强李斌李春光谢云波黄涛赵瑜景延秋孙觅河南农业大学烟草学院河南郑州450002 中国烟草总公司四川省公司四川成都610041 河南中烟工业有限责任公司技术中心河南郑州450016

为提升烤烟苯丙氨酸类香味物质含量和改善烟叶香味,本研究以中烟100为试材,采用氨基酸测定仪、分光光度计、气质联用仪对鲜烟叶和烘烤过程中烤烟主要香气前体物质苯丙氨酸及其降解产生的香味物质含量变化规律进行分析。结果表明,不同部... 详细信息

为提升烤烟苯丙氨酸类香味物质含量和改善烟叶香味,本研究以中烟100为试材,采用氨基酸测定仪、分光光度计、气质联用仪对鲜烟叶和烘烤过程中烤烟主要香气前体物质苯丙氨酸及其降解产生的香味物质含量变化规律进行分析。结果表明,不同部位烟叶在烘烤过程中苯丙氨酸含量的变化均呈现先降后升趋势,在48℃末达到最大值。PAL活性变化测定可知,42~48℃是烟叶苯丙氨酸降解的重要时期。各部位烟叶苯甲醇和苯乙醇含量在烘烤过程中不断上升;下部叶苯甲醛含量变化相对平稳,中上部叶含量呈现先升高后降低趋势;各部位烟叶苯乙醛含量烘烤过程中的变化趋势各不相同,但变幅较小。

关键词：烤烟烘烤苯丙氨酸香味成分降解产物

维普期刊数据库博看期刊

Bioinspired Ultrasensitive Flexible Strain Sensors for Real-Time Wireless Detection of Liquid Leakage

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NANO-MICRO LETTERS 2025年第1期17卷 1-18页

作者： Zhou, Weilong Du, Yu Chen, Yingying Zhang, Congyuan Ning, Xiaowei xie, Heng Wu, Ting Hu, Jinlian Qu, Jinping Huazhong Univ Sci & Technol Sch Chem & Chem Engn Key Lab Mat Chem Energy Convers & Storage Minist EducHubei Key Lab Mat Chem & Serv Failure Wuhan 430074 Peoples R China Huazhong Univ Sci & Technol Hubei Engn Res Ctr Biomat & Med Protect Mat Sch Chem & Chem Engn Wuhan 430074 Peoples R China Wuhan Inst Technol Sch Mat Sci & Engn Wuhan 430205 Peoples R China City Univ Hong Kong Dept Biomed Engn Hong Kong 999077 Peoples R China

Micro-extrusion compression molding and surface modification were proposed for the mass fabrication of a superhydrophobic thermoplastic polyurethane sensor (TCGS).Inspired by scorpions, TCGS features Archimedean spiral crack arrays and micropores, achieving 218.13 sensitivity at 2% strain, a 4300% increase, and over 5000 usage cycles of *** robust superhydrophobicity of TCGS improves sensitivity and stability for detecting small-scale liquid leakage, allowing precise monitoring across various sizes and compositions while providing early warnings in various scenarios. Liquid leakage of pipeline networks not only results in considerable resource wastage but also leads to environmental pollution and ecological imbalance. In response to this global issue, a bioinspired superhydrophobic thermoplastic polyurethane/carbon nanotubes/graphene nanosheets flexible strain sensor (TCGS) has been developed using a combination of micro-extrusion compression molding and surface modification for real-time wireless detection of liquid leakage. The TCGS utilizes the synergistic effects of Archimedean spiral crack arrays and micropores, which are inspired by the remarkable sensory capabilities of scorpions. This design achieves a sensitivity of 218.13 at a strain of 2%, which is an increase of 4300%. Additionally, it demonstrates exceptional durability by withstanding over 5000 usage cycles. The robust superhydrophobicity of the TCGS significantly enhances sensitivity and stability in detecting small-scale liquid leakage, enabling precise monitoring of liquid leakage across a wide range of sizes, velocities, and compositions while issuing prompt alerts. This provides critical early warnings for both industrial pipelines and potential liquid leakage scenarios in everyday life. The development and utilization of bioinspired ultrasensitive flexible strain sensors offer an innovative and effective solution for the early wireless detection of liquid leakage.

关键词： Thermoplastic polyurethane Bioinspired Cracks Liquid leakage Flexible strain sensor

间充质干细胞治疗新冠病毒感染的临床研究进展

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中华细胞与干细胞杂志（电子版） 2023年第4期13卷 247-256页

作者：王红敏谢云波王彦虎王福生中国人民解放军总医院第五医学中心感染病医学部国家感染性疾病临床医学研究中心北京100039 中国科学技术大学附属第一医院中国科学技术大学生命科学与医学部合肥230001 解放军医学院研究生院北京100039

自2019年底新冠病毒感染疫情暴发以来,间充质干细胞(MSCs)因其具有减轻肺脏炎症,促进肺组织修复和免疫调节作用,MSCs治疗已成为一种新的免疫疗法。目前,已有多项MSCs治疗新型冠状病毒肺炎(COVID-19)的临床试验取得进展,结果表明COVID-1... 详细信息

自2019年底新冠病毒感染疫情暴发以来,间充质干细胞(MSCs)因其具有减轻肺脏炎症,促进肺组织修复和免疫调节作用,MSCs治疗已成为一种新的免疫疗法。目前,已有多项MSCs治疗新型冠状病毒肺炎(COVID-19)的临床试验取得进展,结果表明COVID-19患者的肺部病变、临床症状及免疫相关指标等均改善,且未观察到治疗相关的严重不良反应,证明了MSCs治疗的安全性和有效性。但是,MSCs治疗COVID-19的临床应用仍存在一些问题和挑战,如尚无标准的MSCs治疗方案、未明确MSCs治疗的最佳适应人群、缺乏对MSCs治疗COVID-19远期疗效的随访等,这些需要进一步开展大范围深入的临床研究去解决。本文对近三年来目前国内外已注册和发表的MSCs治疗COVID-19的临床研究进行了综述。

关键词：间充质干细胞新型冠状病毒感染临床研究安全性有效性