检索结果-南通市图书馆

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

低频小振动能量收集的伞型摩擦纳米发电机

中国电机工程学报 2024年第10期44卷 4103-4111,I0030页

作者：刘安国苏玉香罗健锋赵柯洋赵西增浙江海洋大学海洋工程装备学院浙江省舟山市316022 浙江大学海洋学院浙江省舟山市316021

针对摩擦纳米发电机功率密度低、触发难、耐久度差的问题,该文设计一种伞型摩擦纳米发电机(umbrella-shape triboelectric nanogenerator,U-TENG)用于收集低频小振动能量。U-TENG以纸基作为连接机构,使上下伞叶在振动环境中进行有序开合... 详细信息

针对摩擦纳米发电机功率密度低、触发难、耐久度差的问题,该文设计一种伞型摩擦纳米发电机(umbrella-shape triboelectric nanogenerator,U-TENG)用于收集低频小振动能量。U-TENG以纸基作为连接机构,使上下伞叶在振动环境中进行有序开合,可以有效增加摩擦层数量、增大接触面积、改善接触面的贴合效果。另外,在摩擦电单元的设计上,通过叠放氟橡胶提高导电层上的感应电荷量,以优化电能输出性能。实验结果表明:当两个摩擦电单元并联运行时,UTENG的最大短路电流和开路电压分别能够达到125.9μA和804 V;在低频小幅振动下其瞬时功率密度最高达到509.3 W/m^(3);U-TENG可以收集环境中不同形式的振动能,以收集脉冲式振动的能力尤为突出,最多可驱动960个LED灯。该方法可为环境中低频振动能的高效捕获提供思路。

关键词：摩擦纳米发电机伞型振动能收集高能量密度叠加输出

维普期刊数据库博看期刊

“疏肝调神”配穴针刺对创伤后应激障碍睡眠障碍大鼠睡眠周期的影响

在线全文

学校读者我要写书评

暂无评论

中华中医药杂志 2024年第3期39卷 1475-1479页

作者：赵中亭陈家涟王小花朱田田刘安国严兴科甘肃中医药大学兰州730101

目的:观察“疏肝调神”配穴针刺对创伤后应激障碍(PTSD)模型大鼠昼间12h异常睡眠周期的影响。方法:60只大鼠随机分为手术组、模型组、抓取组、西药组和针刺组,每组12只。除手术组外均行手术埋置电极与插座并以复合应激法造模,造模后西... 详细信息

目的:观察“疏肝调神”配穴针刺对创伤后应激障碍(PTSD)模型大鼠昼间12h异常睡眠周期的影响。方法:60只大鼠随机分为手术组、模型组、抓取组、西药组和针刺组,每组12只。除手术组外均行手术埋置电极与插座并以复合应激法造模,造模后西药组、针刺组及抓取组分别予以盐酸帕罗西汀、“疏肝调神”针法干预和抓取固定。记录昼间12h睡眠脑电,获取睡眠潜伏期、觉醒-睡眠周期和睡眠时相。结果:与手术组比较,模型组大鼠睡眠潜伏期、觉醒期延长(P<0.01),各睡眠期和8:00—9:00、15:00—18:00睡眠缩短(P<0.01,P<0.05);与抓取组比较,西药组、针刺组大鼠睡眠潜伏期、觉醒期均缩短(P<0.01),西药组大鼠各睡眠期和8:00—10:00、14:00—16:00睡眠延长(P<0.01,P<0.05),针刺组大鼠各睡眠期和8:00—9:00、12:00—13:00、15:00—18:00睡眠延长(P<0.01,P<0.05);与西药组比较,针刺组大鼠睡眠在9:00—10:00较短、16:00—17:00较长(P<0.05)。结论:“疏肝调神”配穴针刺和盐酸帕罗西汀均可调节PTSD睡眠障碍模型大鼠异常脑电,改善睡眠,但针刺相对于药物干预针对性强,不会引起嗜睡,效应更稳定。

关键词：针刺疏肝调神创伤后应激障碍睡眠障碍动物模型睡眠周期脑电波

A Structural Analysis of the Multiple SubjectConstructions in Chinese

在线全文

学校读者我要写书评

暂无评论

现代外语 1999年第2期22卷 145-147页

作者： liu anguo

ModemsyntacticiansclassifytopicconstrUctionsintotwotypes:***,Japanese,KoreanandotherSoutheastAsianlanguages,thereisaspecialkindoftopicconstructionswhichappearintheformofMultipleSubjectConstructions(MSCs).Someresearche... 详细信息

关键词： MSCs Genitive Wh-trace licensing PP deletion recoverability

Mg-3Y合金大应变量轧制过程中的孪生辅助动态再结晶及组织演变

在线全文

学校读者我要写书评

暂无评论

稀有金属材料与工程 2023年第6期52卷 2068-2074页

作者：陈毓美刘权震刘安国侯秀丽江苏大学材料科学与工程学院江苏镇江212013

采用预挤压加单道次大应变量热轧制的方法制备了Mg-3Y(质量分数,%)合金板材。并研究了大应变量轧制过程中不同孪晶类型对合金动态再结晶(DRX)及组织演变的影响。结果表明,在挤压比为8:1的预挤压过程中,合金内部发生了几乎完全的动态再... 详细信息

采用预挤压加单道次大应变量热轧制的方法制备了Mg-3Y(质量分数,%)合金板材。并研究了大应变量轧制过程中不同孪晶类型对合金动态再结晶(DRX)及组织演变的影响。结果表明,在挤压比为8:1的预挤压过程中,合金内部发生了几乎完全的动态再结晶。而在接下来的大应变量热轧制过程中,孪生变形尤其是{1011}压缩孪晶及{1011}-{1012}双孪晶在协调合金的塑性应变中发挥了重要作用。此外,大量动态再结晶在压缩孪晶及双孪晶内部发生,并扩展到非孪晶区域,有效缓解了轧制过程中的内应力集中。上述2个过程对提高合金在大应变量轧制中的成形性均起到了促进作用。

关键词：镁合金稀土大应变量轧制孪生动态再结晶

Sedative and hypnotic effect of freeze-dried paeoniflorin and Sini San freeze-dried powder in pentobarbital sodium-induced mice

在线全文

学校读者我要写书评

暂无评论

Journal of Traditional Chinese Medicine 2014年第2期34卷 184-187页

作者： Yuefeng Li Pingan Wu Yanmei Ning Xingke Yan Tiantian Zhu Chongbing Ma anguo liu Department of Pharmacy Gansu University of Chinese MedicineKey Laboratory of Pharmacology and Toxicology for Traditional Chinese Medicines of Gansu ProvinceGansu College of Traditional Chinese Medicine Department of Acupuncture Gansu University of Traditional Chinese Medicine

OBJECTIVE: To investigate the sedative and hypnotic activity of paeoniflorin and freeze-dried Sini San powder on mice and provide a reliable method for determining the pharmacodynamic material basis of Sini ***: Male adult mice weighing 20-22 g were used in this study. Three experiments were carried out. Synergism with pentobarbital was used as an index for hypnotic effect. Loss of the righting reflex was used to determine the start of *** latency and sleeping time were recorded in each ***: The coefficient of variation of the suprathreshold dose(55 mg/kg) was significantly lower than that of the threshold dose. The sleep latency of mice was significantly decreased, and the sleeping time of mice was significantly prolonged. The effects of paeoniflorin and Sini San on prolonging the sleeping time of mice induced by pentobarbital sodium were significantly stronger than those in the control ***: Paeoniflorin produces significant sedative and hypnotic effects, and there is an obvious dose-effect relationship.

关键词：戊巴比妥钠成年小鼠芍药苷四逆散镇静剂冻干粉催眠冷冻干燥

在线全文

学校读者我要写书评

暂无评论

超声诊断妊娠期肠扭转1例

中国医学影像技术 2023年第3期39卷 479-480页

作者：钟梅刘小双刘安国自贡市第一人民医院超声科四川自贡643000

患者女,18岁,孕1产0,孕13^(+3)周,腹痛、腹胀、恶心、呕吐1天,无腰背部疼痛、呕血、黑便及阴道出血等,外院查血淀粉酶227 U/L,白细胞计数14.6×10^(9)/L,中性粒细胞百分比90.6%,中性粒细胞计数13.23×10^(9)/L,以“妊娠合并急性胰腺炎... 详细信息

患者女,18岁,孕1产0,孕13^(+3)周,腹痛、腹胀、恶心、呕吐1天,无腰背部疼痛、呕血、黑便及阴道出血等,外院查血淀粉酶227 U/L,白细胞计数14.6×10^(9)/L,中性粒细胞百分比90.6%,中性粒细胞计数13.23×10^(9)/L,以“妊娠合并急性胰腺炎”转诊至我院;1周前因妊娠合并急性胰腺炎于我院接受治疗好转后出院。

关键词：肠扭转超声检查妊娠

维普期刊数据库博看期刊

Effect of Sini San Freeze-dried powder on sleep-waking cycle in insomnia rats

在线全文

学校读者我要写书评

暂无评论

Journal of Traditional Chinese Medicine 2014年第5期34卷 572-575页

作者： Xingke Yan Zeguo Zhang Fuju Xu Yuefeng Li Tiantian Zhu Chongbing Ma anguo liu Department of Pharmacy Department of AcupunctureGansu University of Traditional Chinese Medicine Key Laboratory of Pharmacology and Toxicology for Traditional Chinese Medicines of Gansu Province Department of Acupuncture Gansu University of Traditional Chinese Medicine

OBJECTIVE: To investigate the effects of the Sini San at different doses on each sleeping state[slow-wave sleep 1(SWS1), slow-wave sleep 2(SWS2), rapid-eye-movement(REM), wakefulness(W)] in insomnia rats and to identify its mode of ac-tion for improving ***: The insomnia rats were randomly divided into a high-, medium- or low-dose group of Sini San(equal to crude drug 8.8, 4.4, or 2.2 g/kg, respectively) for seven consecutive ***: Compared with pre-administration,SWS2 was significantly increased after administration of the low dose. Compared with pre-administration, W was significantly decreased and SWS1,SWS2, and the total sleeping time(TST) were markedly increased after administration of the medium dose. Compared with pre-administration, W was significantly decreased and SWS1, SWS2, rapid-eye-movement sleep, and TST were significantly longer after administration of the high dose. The effects of Sini San on sleep-wake cycle are ***: The results suggest that Sini San extends SWS1 and SWS2, which increases the total sleeping time.

关键词：睡眠状态四逆散大鼠周期冻干粉慢波睡眠睡眠时间低剂量

THE MOVEMENT OF BED-LOAD DISCHARGE NEAR THE SHORE OF SHIJIU HARBOUR

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Oceanology and Limnology 1985年第2期3卷 212-223页

作者： Shi Maochong liu anguo Wang Xirui (Shandong College of Oceanology)andZhang Bifang (Ningbo Professional School of Oceanology) Shandong College of Oceanology Shangdong China Ningbo professional School of Oceanology Ningbo China

Shijiu Harbour is to be constructed at southern Shandong as an important shipping center with a docking capacity of 100 thousand tonnages of a single *** and tidal currents were frequently observed at three different layers from December 1979 to April 1980. Bed-load discharge was sampled and calculated for different weather conditions. Some of the results are as follows:1. The amount of bed-load discharge is 0.1359 g/cm2/day during the spring tide, 0.09 g/cm2/day during the neap tide, 0.488 g/cm2/day during storm weather, which is four times as high as that during average tides.2. The maximum amount of the sediments that settle to the waterway is less than 46.7768 g/cm2 per year, therefore the waterway will not be blocked by the transported sand and clay even after a storm weather.

关键词： THE MOVEMENT OF BED-LOAD DISCHARGE NEAR THE SHORE OF SHIJIU HARBOUR

彩色多普勒超声在自体动静脉内瘘成型术后血流动力学及成熟度评估中的应用

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中国超声医学杂志 2022年第8期38卷 872-875页

作者：刘安国潘覃吴萍赖毅自贡市第一人民医院超声医学科自贡市第一人民医院肾病内科

目的探讨彩色多普勒超声在自体动静脉内瘘成型术(AVF)后血流动力学及成熟度评估中的应用价值。方法 94例行AVF治疗的终末期肾病患者根据患者术后6周的内瘘成熟度分为成熟组与未成熟组。对比两组手术前后的血流动力学参数。根据分析结... 详细信息

目的探讨彩色多普勒超声在自体动静脉内瘘成型术(AVF)后血流动力学及成熟度评估中的应用价值。方法 94例行AVF治疗的终末期肾病患者根据患者术后6周的内瘘成熟度分为成熟组与未成熟组。对比两组手术前后的血流动力学参数。根据分析结果制定2种超声标准：标准(1):术后6周AVF自然血流量>500 mL/min、头静脉内径≥5 mm;标准(2):术后6周AVF自然血流量>500 mL/min、头静脉内径≥4 mm)对内瘘成熟度的诊断效能。结果成熟组术后6周的头静脉内径值及肱动脉血流量均显著高于未成熟组(P500 mL/min、头静脉内径≥4 mm),可较为准确地判定AVF术后6周内瘘成熟。

关键词：自体动静脉内瘘成型术终末期肾病彩色多普勒超声内瘘成熟度