检索结果-南通市图书馆

Large scalable,ultrathin and self-cleaning cellulose aerogel film for daytime radiative cooling

在线全文

学校读者我要写书评

暂无评论

Journal of Bioresources and Bioproducts 2023年第4期8卷 421-429页

作者： Chenyang Cai Yuanbo Sun Yi Chen Zechang Wei Yibo Wang fuling Chen Wanquan Cai Jiawen Ji Yuxin Ji Yu Fu Co-Innovation Center of Efficient Processing and Utilization of Forest Resource School of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037China

Passive cooling strategy shows great potential in mitigating global warming and reducing energy *** of the high emissivity in the atmospheric transparency window(λ≈8–13μm),cellulose is considered as a good candidate for radiative ***,traditional cellulose coolers generally show poor solar reflection and can be polluted by dust outside,thereby resulting in poor daytime cooling *** address these drawbacks,we developed sustainable cellulose nanowhiskers(CNWs)/ZnO composite aerogel films with favorable optical performance,mechanical robustness,and self-cleaning function for efficient daytime radiative cooling,which can be achieved via freeze casting and hot-pressing *** to formation of multi-level porous structure and chemical bonds(Si-O-C/Si-O-Si),such aerogel film exhibited high solar reflectance(97%)and high infrared emittance(92.5%).It achieved a sub-ambient temperature drop of 6.9℃under direct sunlight in hot *** importantly,the surface roughness and low surface energy enable cellulose aerogel film hydrophobicity(contact angle=133°),thereby resulting in an anti-dust *** work provides insight into the design of sustainable thermal regulating materials to realize carbon neutrality.

关键词： Cellulose Aerogel film Radiative cooling Anti-dust

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

鼻咽癌治疗后颈淋巴结残留或复发的手术治疗

中国医药导报 2011年第32期8卷 183-185页

作者：张政陶仲强周日晶覃颖陆锦龙黄波周富玲司勇锋广西壮族自治区人民医院耳鼻咽喉头颈肿瘤科广西南宁530021

目的:探讨鼻咽癌治疗后颈淋巴结残留或复发的手术治疗的疗效。方法:回顾性分析我院57例因鼻咽癌放疗后颈淋巴结残留或复发行颈清扫术的患者,应用Kaplan-Meier法进行生存率分析,采用COX回归模型对影响生存率的相关因素进行分析。结果:术... 详细信息

目的:探讨鼻咽癌治疗后颈淋巴结残留或复发的手术治疗的疗效。方法:回顾性分析我院57例因鼻咽癌放疗后颈淋巴结残留或复发行颈清扫术的患者,应用Kaplan-Meier法进行生存率分析,采用COX回归模型对影响生存率的相关因素进行分析。结果:术后1﹑3﹑5年生存率分别为82.1%﹑54.8%﹑34.7%。多因素分析表明,放疗后至手术之日的间隔时间超过24个月,复发或残留淋巴结再分期较晚,淋巴结外侵犯预后差。结论:颈淋巴结清扫术为治疗鼻咽癌放射治疗后颈淋巴结残留或复发的有效方法,可以提高患者的生存率。

关键词：鼻咽癌颈淋巴结清扫术残留复发放射治疗

耳穴皮内针联合塞来昔布对膝关节置换术后疼痛及关节功能恢复的影响

在线全文

学校读者我要写书评

暂无评论

中外医学研究 2024年第2期22卷 18-21页

作者：吉福玲张国英郭琦钱军牛彦红李旭伟河西学院附属张掖人民医院甘肃张掖734000

目的:探讨耳穴皮内针联合塞来昔布对膝关节置换术后患者疼痛改善及关节功能恢复的影响。方法:选择2021年11月—2022年11月河西学院附属张掖人民医院骨科收治的83例膝关节置换术后患者。随机分为对照组(n=40)和观察组(n=43)。对照组给予... 详细信息

目的:探讨耳穴皮内针联合塞来昔布对膝关节置换术后患者疼痛改善及关节功能恢复的影响。方法:选择2021年11月—2022年11月河西学院附属张掖人民医院骨科收治的83例膝关节置换术后患者。随机分为对照组(n=40)和观察组(n=43)。对照组给予塞来昔布胶囊+基础治疗,观察组在对照组基础上联合耳穴皮内针治疗。记录两组术后首次下床活动时间、住院时间及补救镇痛情况(镇痛泵按压次数、补救镇痛例数);比较两组治疗前,治疗7 d、14 d后的视觉模拟评分法(VAS)评分、美国纽约特种外科医院(HSS)评分、压痛阈值、血清炎症因子[白细胞介素-6(IL-6)、C反应蛋白(CRP)、肿瘤坏死因子-α(TNF-α)]水平。结果:观察组首次下床时间、住院时间均短于对照组,差异有统计学意义(P<0.05)。观察组镇痛泵按压次数、补救镇痛例数少于对照组,差异有统计学意义(P<0.05)。治疗7 d、14 d后,观察组VAS评分低于对照组,差异有统计学意义(P<0.05)。治疗7 d、14 d后,观察组HSS评分高于对照组,差异有统计学意义(P<0.05)。治疗后,两组内、外侧点压痛阈值均低于治疗前,观察组高于对照组,差异有统计学意义(P<0.05)。治疗后,两组TNF-α、CRP、IL-6水平均低于治疗前,且观察组上述指标均低于对照组,差异有统计学意义(P<0.05)。结论:耳穴皮内针联合塞来昔布应用于膝关节置换术后患者的镇痛效果较好,可有效提高关节活动度,降低血清炎症因子的表达。

关键词：耳穴皮内针塞来昔布膝关节置换术关节功能

维普期刊数据库博看期刊

在线全文

学校读者我要写书评

暂无评论

如何提高临床青年教师的教学能力

中国医学教育技术 2016年第5期30卷 535-537页

作者：邵亮潘运宝范静怡魏永长饶翮宋世会周芙玲武汉大学中南医院血液科武汉430071 江南大学无锡医学院病理科江苏无锡214122 武汉大学中南医院教务办公室武汉430071 武汉大学中南医院肿瘤放化疗武汉430071 武汉大学中南医院感染科武汉430071

医学院的临床教学主要由附属医院的在职医师承担,其中青年教师的教学能力直接影响到整个临床教学的质量。为了更好地提高临床教学质量,提高临床青年教师的教学能力是当务之急。武汉大学中南医院采取了一系列改革措施,包括提高青年教师... 详细信息

医学院的临床教学主要由附属医院的在职医师承担,其中青年教师的教学能力直接影响到整个临床教学的质量。为了更好地提高临床教学质量,提高临床青年教师的教学能力是当务之急。武汉大学中南医院采取了一系列改革措施,包括提高青年教师的临床教学准入标准、应用"多元化"的培训方式提高青年教师的综合能力、采取各种激励措施和完善有效的考评制度督促青年教师提高教学能力,收到明显效果。

关键词：教学能力临床医学青年教师

A 3D evaluation method of cutting surface topography of carbon/carbon(C/C) composite

在线全文

学校读者我要写书评

暂无评论

High Technology Letters 2010年第4期16卷 366-372页

作者：周鹏 Zhao fuling Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education Dalian University of Technology Dalian 116024 P.R. China

This paper aims to establish a 3D evaluation method for cutting surface topography of C/C composites. The cutting surface is measured by Talyscan 150, using 3D non-contact measurement. By evaluating 2D and 3D roughness of C/C composite and Duralumin, the 2D evaluation method of the cutting surface topography of C/C composite loses a lot of information, and the characteristics of the surface topography of C/C composite can be comprehensively and authentically evaluated only by the 3D evaluation method. Furthermore, 3D amplitude and spatial parameters are adopted to evaluate the surface and the results show that： the topography of the C/C composite is anisotropy and there are no obvious feeding textures but abrupt peaks and valleys on surface of the C/C composite, which indicates that the machining mecha- nism is different from that of the metal. In conclusion, The C/C composite surface is evaluated using a 3D evaluation method, the roughness error is small, and the unique topography characteristics earl be au- thentically evaluated.

关键词： C/C composite surface topography 3D evaluation method

在线全文

学校读者我要写书评

暂无评论

桂枝茯苓丸异病同治周围血管病医案3则

新中医 2024年第4期56卷 29-33页

作者：周小莉重庆市中医院重庆400021

周围血管病包括下肢动脉硬化闭塞症、血栓闭塞性血管炎、下肢静脉曲张、下肢深静脉血栓、淋巴水肿等。此类疾病多因禀赋不足、饮食不节、情志不遂、嗜烟喜酒等导致气机逆乱,气血津液输布失常,气血滞则为瘀,津液凝则为痰,痰瘀日久互结为... 详细信息

周围血管病包括下肢动脉硬化闭塞症、血栓闭塞性血管炎、下肢静脉曲张、下肢深静脉血栓、淋巴水肿等。此类疾病多因禀赋不足、饮食不节、情志不遂、嗜烟喜酒等导致气机逆乱,气血津液输布失常,气血滞则为瘀,津液凝则为痰,痰瘀日久互结为癥,癥积阻络,致脉络瘀滞不通而引发[1]。临床表现为肢体乏力、厥冷、疼痛、酸胀、麻木、水肿、肤色改变、溃疡、坏疽、脉微欲绝等。活血化瘀是周围血管病的治疗总则,结合患者的具体情况审证求因,常联合使用温经散寒法、清热利湿解毒法、温肾健脾法、利水渗湿法,以软坚散结、化痰通络、益气补血等。桂枝茯苓丸出自《金匮要略》,主要用于治疗妇科经、带、胎、产病引起的癥瘕、积聚。该方组方严谨,用药精当,备受历代医家推崇,目前,临床多用于内、外、妇各科疾病的治疗。笔者临证基于周围血管病痰瘀互结、癥积阻络的病机,将桂枝茯苓丸用于治疗此类疾病,临床收效甚佳,现将经验总结如下。

关键词：周围血管病桂枝茯苓丸异病同治

塞利尼索联合化疗方案在复发/难治性多发性骨髓瘤治疗中的探索——来自多中心、开放标签的LAUNCH研究中期数据结果

在线全文

学校读者我要写书评

暂无评论

临床血液学杂志 2023年第7期36卷 468-472页

作者：孙春艳房佰俊高广勋周芙玲何爱丽赵菲李俊颖张纯黎纬明程辉蔡惠丽陈斌郭静明胡豫华中科技大学同济医学院附属协和医院血液科武汉430022 郑州大学附属肿瘤医院(河南省肿瘤医院)血液科空军军医大学西京医院血液科武汉大学中南医院血液科西安交通大学第二附属医院血液科武汉市第一医院血液科宜昌市中心人民医院血液科湖北省中医院血液科

目的:评估塞利尼索、地塞米松(Sd)联合化疗药物在复发/难治性多发性骨髓瘤患者中的疗效及安全性。方法:这是一项多中心、开放标签、单臂的临床研究,分为2个治疗臂:SDd组:塞利尼索80 mg d1,8,15,22,地塞米松40 mg d1,8,15,22,脂质体阿霉... 详细信息

目的:评估塞利尼索、地塞米松(Sd)联合化疗药物在复发/难治性多发性骨髓瘤患者中的疗效及安全性。方法:这是一项多中心、开放标签、单臂的临床研究,分为2个治疗臂:SDd组:塞利尼索80 mg d1,8,15,22,地塞米松40 mg d1,8,15,22,脂质体阿霉素25~35 mg/m2,d1;SCd组:塞利尼索100 mg d1,8,15,22,地塞米松40 mg d1,8,15,22,环磷酰胺300 mg/m2,d1,8,15,22。每28 d为1个疗程,共12个疗程。主要终点为客观缓解率(ORR),次要终点包括安全性、无进展生存期、总生存期等。结果:截止到2023年4月30日,共入组36例患者。中位年龄为59(29~74)岁,患者应用塞利尼索的时间距离初次诊断的中位时间为3.5(0.5~15.5)年,中位既往治疗线数为3(1~8)。其中6例(16.7%)患者伴髓外病灶,12例(33.3%)患者伴高危细胞遗传学,4例(11.1%)患者既往接受过自体造血干细胞移植,3例(8.3%)患者既往接受过CAR-T治疗。既往药物暴露情况:硼替佐米(94.4%)、来那度胺(80.6%)、泊马度胺(41.7%)、达雷妥尤单抗(27.8%),阿霉素和环磷酰胺(19.4%)。1例患者已完成12个疗程治疗,4例患者治疗>10个疗程,12例患者仍在治疗中,最主要的出组原因依次为患者要求退出、疾病进展和治疗不耐受。在可评估的29例患者中,ORR为48.3%(14/29),包括完全缓解1例,非常好的部分缓解1例,部分缓解12例。治疗至缓解中位时间为2个月。中位无进展生存期为11.6个月,总生存期未达到,1年生存率为75.0%。其中SDd组(n=19)的ORR为52.6%;SCd组(n=10)的ORR为40.0%。治疗相关不良反应的发生主要集中在前2个治疗周期,多数为1~2级,通过积极的支持治疗或对症处理后,不良反应均有所改善。其中最常见的血液学不良反应(整体/3~4级)为:血小板减少(58.3%/25.0%),白细胞减少(50.0%/30.6%)和贫血(41.7%/22.2%);最常见的非血液学不良反应(整体/3~4级)为:恶心(52.8%/2.8%)、呕吐(38.9%/5.6%)和乏力(30.6%/2.8%)。结论:以Sd为基础联合脂质体阿霉素或环磷酰胺在复发/难治性多发性骨髓瘤患者中观察到良好的疗效,治疗过程中的不良反应也可通过积极的支持治疗和剂量调整得到改善。

关键词：复发/难治多发性骨髓瘤塞利尼索化疗

AUTOMATIC RECOGNITION OF FREIGHT CAR NUMBER

在线全文

学校读者我要写书评

暂无评论

Geo-Spatial Information Science 2000年第3期3卷 24-29页

作者： FU Zhongliang Bian fuling zhou Songtao Hu Qingwu School of Information Engineering WTSUM Wuhan China

This paper discusses methods for character extraction on the basis of statistical and structural features of gray_level images,and proposes a dynamic local contrast threshold method accommodating to line *** locating of character string is realized by exploiting horizontal projection and character arrangements of binary images in horizontal and vertical directions *** discussed is the method for segmentation of characters in binary images,which is based on projection taking stroke width and character sizes into account.A new method for character identification is explored,which is based on compound neural networks.A complex neural network consists of two sub_nets,the first sub_net performs self_association of patterns via 2_dimentional local_connected 3_order networks,the second sub_net,linking with a locally connected BP networks,performs *** reliability of the network recognition is reinforced by introducing conditions for identification *** confirm that the proposed methods possess the advantages of impressive robustness,rapid processing and high accuracy of identification.

关键词： image processing neural networks segmentation character identification

Influence of Ginkgo Biloba extract on beta-secretase in rat hippocampal neuronal cultures following chronic hypoxic and hypoglycemic conditions

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2008年第10期3卷 1065-1069页

作者： Xueneng Guan fuling Yan Department of Neurology Jiangsu Provincial Institute of Traditional Chinese Medicine Nanjing 210038 Jiangsu Province China Department of Neurology Zhongda Hospital Southeast University Nanjing 210009 Jiangsu Province China

BACKGROUND： Preparation of Ginkgo leaf has been widely used to improve cognitive deficits and dementia, in particular in Alzheirner＇s disease patients. However, the precise mechanism of action of Ginkgo leaf remains unclear. OBJECTIVE： To explore the effect of Ginkgo Biloba extract （Egb761）, Ginaton, on β -secretase expression in rat hippocampal neuronal cultures following chronic hypoxic and hypoglycemic conditions. DESIGN, TIME AND SETTNG： Completely by randomized, grouping study. The experiment was performed at the Laboratory of Molecular Imaging, Southeast University between August 2006 and August 2007. MATERIALS： A total of 128 Wistar rats aged 24 hours were selected, and hippocampal neurons were harvested for primary cultures. METHODS： On day 7, primary hippocampal neuronal cultures were treated with Egb761 （0, 25, 50, 100, 150, and 200μg/mL） under hypoxic/hypoglycemic or hypoglycemic culture conditions for 12, 24, and 36 hours, respectively. Hippocampal neurons cultured in primary culture medium served as control. MAIN OUTCOME MEASURES： Cell viability was assayed using 3-（4,5-Dimethylthiazol-2-yl）- 2,5-diphenyltetrazolium bromide （MTT）; fluorescence detection of β -secretase activity was performed; Western Blot was used to measure β -secretase expression. RESULTS： Cell viability under hypoxic/hypoglycemic or hypoglycemic culture conditions was significantly less than control cells （P 〈 0.05）. Under hypoxic/hypoglycemic or hypoglycemic culture conditions, treatment with 25 μg/mL Egb761 did not alter cell viability. However, 〉 25 μg/mL Egb761 induced greater cell viability （P 〈 0.05）. No differences were observed between hypoxic/hypoglycemic or hypoglycemic cells （P 〉 0.05）. α -secretase activity was increased after 12 hours in hypoxic/hypoglycemic culture （P 〈 0.01）. There were no significant differences between the 12-, 24-, or 36-hour Egb761 groups and the hypoxic/hypoglycemic groups （P 〉 0.05）. β -secretase activity was greater after 12, 24, and 36 hours in

关键词： α -secretase β -secretase Alzheirner's disease chronic hypoxia hippocampal neuron hypoglycemia