检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

双针-板结构脉冲气泡放电等离子体固氮研究

原子与分子物理学报 2025年第6期42卷 122-128页

作者：赵少伟张丽方志南京工业大学电气工程与控制科学学院南京211816

大气压低温等离子体可以利用空气直接进行氧化固氮,具有反应条件温和、参数灵活可控、避免温室气体排放等优点.本文利用双针-板电极在水中形成气泡放电等离子体,以空气为放电气体进行了固氮研究,分析了产物浓度和固氮能耗的影响因素.研... 详细信息

大气压低温等离子体可以利用空气直接进行氧化固氮,具有反应条件温和、参数灵活可控、避免温室气体排放等优点.本文利用双针-板电极在水中形成气泡放电等离子体,以空气为放电气体进行了固氮研究,分析了产物浓度和固氮能耗的影响因素.研究结果表明,等离子体中含有丰富的氮原子、氧原子、氢原子、激发态氮分子等活性物种,可高效合成硝态含氮产物.研究发现,脉冲参数、电极间隙、工作气体组分对气泡放电等离子体的固氮性能有重要影响.装置最高NO~-_x合成速率为19.2μmol/min,最小能耗约为11 MJ/mol.此外还发现,电极间隙为6 mm时,固氮性能最优;空气中增加适量氧气(氧气/氮气比例为0.4)可以增强产物合成,降低能耗.

关键词：低温等离子体纳秒脉冲放电气液放电固氮

Primary parenchymal squamous cell carcinoma of the kidney:A case report

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2025年第4期13卷 34-40页

作者： Zhi-Hui Zheng Bo shao Chao-Min Xu Ke Wang Jia-Zhu Wen li-Kang Luo Jia-Cheng Guan Department of Ultrasound The Second People’s Hospital of QuzhouQuzhou 324000Zhejiang ProvinceChina Department of Radiology Shulan(Quzhou)HospitalQuzhou 324000Zhejiang ProvinceChina Department of Radiology The Second People’s Hospital of QuzhouQuzhou 324000Zhejiang ProvinceChina Department of Pathology The Second people’s Hospital of QuzhouQuzhou 324000Zhejiang ProvinceChina

BACKGROUND Primary squamous cell carcinoma(SCC)of the renal parenchyma is extremely rare,with only nine cases *** SUMMARY This study reports a 51-year-old man with primary SCC of the renal *** patient was admitted with recurrent dull pain and discomfort in the right lumbar region,which had worsened over 2 weeks,accompanied by painful gross *** antigen(SCCA)levels were elevated,and imaging revealed a renal mass with associated *** patient underwent laparoscopic unilateral nephrectomy and lymph node *** pathology confirmed highly differentiated SCC with necrosis in the right renal parenchyma,with negative renal pelvis and *** pathological stage was *** months after surgery,the tumor recurred with involvement of the liver,right psoas major muscle,and inferior vena *** patient refused chemotherapy and succumbed to the disease 6 months postoperatively due to disease *** We report a case of primary SCC of the renal parenchyma,a rare renal *** clinical symptoms,laboratory tests,and imaging findings are nonspecific,making accurate and timely diagnosis *** to the literature,for patients with renal calculi accompanied by a renal mass,elevated serum SCCA levels,and magnetic resonance imaging showing cystic or cystic-solid masses within the kidney with pseudocapsules and heterogeneous mild enhancement,the possibility of this disease should be considered.

关键词： Renal tumor Renal parenchyma Squamous cell carcinoma Renal calculi Computed tomography Case report

Ischemic preconditioning protects liver from hepatectomy under hepatic inflow occlusion for hepatocellular carcinoma patients with cirrhosis

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

World Journal of Gastroenterology 2004年第17期10卷 2580-2584页

作者： shao-Qiangli li-Jianliang jie-FuHuang Zhili DepartmentofHepatobiliarySurgery theFirstAffiliatedHospitalSunYat-senUniversityGuangzhou510080GuangdongProvinceChina DepartmentofPahtology SunYat-senUniversityGuangzhou510080GuangdongProvinceChina

AIM: To investigate the protective effect of ischemic preconditioning (IPC) on hepatocellular carcinoma (HCC) patients with cirrhosis undergoing hepatic resection under hepatic inflow occlusion (HIO) and its possible ***: Twenty-nine consecutive patients with resectable OHCC were randomized into two groups: IPC group: before HIO, IPC with 5 min of ischemia and 5 min of reperfusion was given; control group: no IPC was given. Uver functions,hepatic Caspase-3 activity, and apoptotic cells were compared between these two ***: On postoperative days (POD) 1, 3 and 7, the aspartate transaminase (AST) and alanine transaminase (ALT) levels in the IPC group were significantly lower than those in the control group (Plirubin level in the IPC group was significantly lower than that in the control group (Plial cells in the IPC group were significantly lower than those in the control group (Plial cell apoptosis is achieved by inhibiting Caspase-3 activity.

关键词：缺血性预处理肝脏保护作用肝切除术肝脏流入物闭塞作用肝细胞癌肿瘤肝硬化消化系统

Blind image deconvolution for single motion-blurred image

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

The Journal of China Universities of Posts and Telecommunications 2010年第3期17卷 104-109页

作者： SUN shao-jie WU Qiong li Guo-hui College of Information System and Management National University of Defense Technology Changsha 410073 China Airforce Training Equipment Institute Beijing 100195 China

Motion blur due to camera shake during exposure is one of the most common reasons of image degradation, which usually reduces the quality of photographs seriously. Based on the statistical properties of the natural image＇s gradient and the blur kernel, a blind deconvolution algorithm is proposed to restore the motion-blurred image caused by camera shake, adopting the variational Bayesian estimation theory. In addition, the ring effect is one problem that is not avoided in the process of image deconvolution, and usually makes the visual effect of the restored image badly. So a dering method is put forward based on the sub-region detection and fuzzy filter. Tested on the real blurred photographs, the experimental results show that the proposed algorithm of blind image deconvolution can remove the camera-shake motion blur from the degraded image effectively, and can eliminate the ring effect better, while preserve the edges and details of the image well.

关键词： blind image deconvolution motion blur camera shake ring effect

CBL联合多学科病例讨论在内科住院医师规范化培训分层培养中的应用

在线全文

学校读者我要写书评

暂无评论

安徽医专学报 2021年第6期20卷 92-94页

作者：邵丽洁李东旭汪梅朵王科荣荣汪国生周莉中国科学技术大学附属第一医院(安徽省立医院) 安徽合肥230001 安徽医科大学安徽合肥230032

目的:探讨以病例为导向的教学法(CBL)联合多学科病例讨论教学法在内科住院医师规范化培训分层培养教学中的应用效果。方法:217名内科住院医师规范化培训学员采用自身对照,在传统教学法的基础上同时采用CBL联合多学科病例讨论教学法进行... 详细信息

目的:探讨以病例为导向的教学法(CBL)联合多学科病例讨论教学法在内科住院医师规范化培训分层培养教学中的应用效果。方法:217名内科住院医师规范化培训学员采用自身对照,在传统教学法的基础上同时采用CBL联合多学科病例讨论教学法进行教学,对比学员理论试题正确率、总体教学满意度,并结合问卷调查评估教学效果。结果:实验组学员理论试题正确率(92.6%VS 81.3%)及总体教学满意度(98.2%VS 71.9%)均高于对照组。相对于对照组,各类型学员对实验组教学法能力提升满意度如下:专业研究生组学员自主能力提高、基础知识巩固、专业知识拓展方面的教学满意度较高(P<0.05);社会规培学员自主能力提高、基础知识巩固、临床思维指导、专业知识拓展四方面的教学满意度均较高(P<0.05);该院职工在专业知识拓展方面满意度较高(P<0.05)。结论:CBL联合多学科病例讨论教学法相对于传统教学法有更好的教学效果及学员满意度,对内科住院医师规范化培训分层培养的开展有积极作用。

关键词： CBL教学法多学科病例讨论住院医师规范化培训分层培养

Critical collapse of massless scalar fields in asymptotically anti-de Sitter spacetime

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2024年第11期48卷 265-270页

作者： li-jie Xin Cheng-Gang shao MOE Key Laboratory of Fundamental Physical Quantities Measurement Hubei Key Laboratory of Gravitation and Quantum PhysicsPGMFand School of PhysicsHuazhong University of Science and TechnologyWuhan 430074China

We conduct numerical investigations on the critical collapse of spherically symmetric massless scalar fields in asymptotically anti-de Sitter *** primary focus is on the behavior of the critical amplitude under various initial configurations of the scalar *** our numerical results,we obtain a formula that determines critical amplitude in terms of cosmological constantΛ:A^(*)∝(0.01360σ/v_(0)+0.001751)Λ,whereσdenotes the initial width of the scalar field and is the initial position of the scalar ***,we highlight that the slope of this linear relationship depends on the initial configuration of the scalar field.

关键词： general relativity critical collapse gravitational collapse anti-de Sitter spacetime

心脏介入围手术期的护理干预及患者焦虑情绪的管理

在线全文

学校读者我要写书评

暂无评论

罕少疾病杂志 2016年第5期23卷 20-22,25页

作者：唐少梅李洁源何彩勤陈渺广东省佛山市第一人民医院心血管内科广东佛山528000

目的对比心脏介入治疗前后结患者焦虑情绪的改变,探讨围手术期护理干预对减轻患者焦虑情绪,预防术后并发症疗效。方法选择我院心脏介入(PCI)合并焦虑患者118例,随机分为干预组59例和对照组59例,对照组采用常规护理方式,观察组在常规护... 详细信息

目的对比心脏介入治疗前后结患者焦虑情绪的改变,探讨围手术期护理干预对减轻患者焦虑情绪,预防术后并发症疗效。方法选择我院心脏介入(PCI)合并焦虑患者118例,随机分为干预组59例和对照组59例,对照组采用常规护理方式,观察组在常规护理的基础上给予全面的心理护理干预。并评估两组手术前后焦虑(SAS)评分以及术后并发症的情况。结果心脏介入患者合并焦虑的比例为44.2%,其中焦虑评分与学历、吸烟史、冠心病家族史成正相关(P<0.05),与年龄成负相关(P<0.01);观察组术后梗死率、心绞痛发作频率、心律失常发生率也明显减少(P<0.01);观察组手术前后SAS评分明显低于对照组,差异具有统计学意义(P<0.05或0.001)。结论围手术期开展全面的护理干预可以缓解PCI手术前后患者焦虑情绪,减轻术后并发症,值得临床推广应用。

关键词：介入围手术期焦虑护理干预

在线全文

学校读者我要写书评

暂无评论

猕猴髌骨性别判别分析

唐山师范学院学报 2021年第3期43卷 60-63页

作者：赵晓进赵晓芳邵立杰胡李裔徐亚丽郑州工商学院商学院河南郑州451400

收集太行山自然保护区内猕猴死亡个体髌骨标本60例(19♂,41♀),对每个标本选择髌骨的5个部位和股骨长进行测量。采用多元线性回归分析和逻辑回归分析计算髌骨变量性别差异。结果表明:髌骨关节面宽、髌骨关节面高、髌骨最大高和髌骨颅面... 详细信息

收集太行山自然保护区内猕猴死亡个体髌骨标本60例(19♂,41♀),对每个标本选择髌骨的5个部位和股骨长进行测量。采用多元线性回归分析和逻辑回归分析计算髌骨变量性别差异。结果表明:髌骨关节面宽、髌骨关节面高、髌骨最大高和髌骨颅面宽性别差异显著(P<0.05)。多元线性回归的直接代入法和逐步判别分析法的性别正确判别率分别是80.0%和76.7%;二元逻辑回归的直接代入法和逐步判别分析法的正确判别率分别是90.0%和85.0%。实验结果表明,猕猴髌骨可以用来识别个体的性别。

关键词：猕猴髌骨性差判别分析

Coumarin Based Neutral Sensor for Biologically Important Anions

在线全文

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2011年第5期27卷 769-772页

作者： shao jie Department of Chemistry and Materials Science Nanjing Forestry University Nanjing 210037 P. R. China

A coumarin Shiff-base derivative, salicylaldehyde-N-（6-phenylazo-coumarin-3-formyl）-hydrazone（1）, was obtained by simple organic synthesis from cheap and commercially available starting materials. Sensor 1 exhibits a very weak fluorescence emission, however, in the presence of acetate ions ＂turn-on＂ fluorescence is observed, which results from binding-induced conformational restriction of the fluorophore. Importantly, sensor 1 can also be used as colorimetric chemosensor for the anions with strong basicity, which is easily observed from yellow to red by naked eyes. Consequently, compound 1 can behave as a colorimetric and fluorescence sensor for biologically important F-, CH3COO- and H2PO4- in the presence of the other anions tested such as Cl-, Br- and I- in dimethyl sulfoxide（DMSO）.

关键词： Anion sensor Turn-on Colorimetric Conformational restriction Coumarin