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厦门市旅游流网络结构研究

龙岩学院学报 2024年第1期42卷 84-91页

作者：张发梓葛阳靳一东张琳陈宇韬胡乔峰林玉英福建师范大学智慧旅游福建省高校重点实验室福建福州350117

基于携程旅行和去哪儿网站发布的游客旅行游记数据,以厦门市作为研究区域,通过社会网络分析法,揭示厦门市旅游流整体网络结构特征。结果表明:出游厦门市的游客以“中长假期”为主,停留时间较长。从停留时间来看,四日游占比高于其他时间... 详细信息

基于携程旅行和去哪儿网站发布的游客旅行游记数据,以厦门市作为研究区域,通过社会网络分析法,揭示厦门市旅游流整体网络结构特征。结果表明:出游厦门市的游客以“中长假期”为主,停留时间较长。从停留时间来看,四日游占比高于其他时间,本地长途游很受青睐;在对厦门市36个旅游节点的研究中,旅游流网络结构呈不均衡分布,核心景点作用明显;厦门大学在旅游流网络中占据的流量比重大,处于核心位置;海湾公园、鹭江道、日光岩等景点则处于边缘地带。因此,应完善厦门市的旅游流网络结构,实现厦门市的旅游优质化发展。

关键词：旅游数字足迹旅游流空间网络结构厦门市

疏肝理气养血方联合氢溴酸西酞普兰治疗卒中后失眠伴抑郁老年患者的疗效观察及对睡眠质量和神经递质的影响

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中国合理用药探索 2024年第1期21卷 98-103页

作者：徐明超樊书领李尽义任应国南阳市中心医院神经康复科南阳473000

目的:观察疏肝理气养血方联合氢溴酸西酞普兰治疗卒中后失眠伴抑郁老年患者的疗效及对睡眠质量和神经递质的影响。方法:选取2021年5月~2023年2月某院收治的114例卒中后失眠伴抑郁的老年患者为研究对象,采用随机数字表法分为对照组与观察... 详细信息

目的:观察疏肝理气养血方联合氢溴酸西酞普兰治疗卒中后失眠伴抑郁老年患者的疗效及对睡眠质量和神经递质的影响。方法:选取2021年5月~2023年2月某院收治的114例卒中后失眠伴抑郁的老年患者为研究对象,采用随机数字表法分为对照组与观察组,每组57例。对照组给予氢溴酸西酞普兰片,观察组在对照组治疗基础上加用疏肝理气养血方。比较两组神经递质的水平[5-羟色胺(5-HT)、P物质(SP)、甘氨酸、γ-氨基丁酸],评估两组美国国立卫生院卒中量表(NIHSS)评分、匹兹堡睡眠质量指数(PSQI)评分、中医症状评分、汉密尔顿抑郁量表(HAMD)评分、日常生活能力(ADL)评分的差异。比较两组临床治疗总有效率并记录治疗期间两组不良反应的发生情况。结果:治疗后,两组患者5-HT、甘氨酸、γ-氨基丁酸均较治疗前升高,且观察组高于对照组(P<0.05);SP较治疗前降低,且观察组低于对照组(P<0.05);NIHSS评分、PSQI评分、HAMD评分、中医症状评分均较治疗前降低,且观察组PSQI评分、HAMD评分、中医症状评分低于对照组(P<0.05);ADL评分较治疗前升高,且观察组高于对照组(P<0.05)。治疗后,观察组临床治疗总有效率(91.23%)高于对照组(77.19%,P<0.05)。治疗期间两组患者不良反应总发生率比较无统计学差异。结论:疏肝理气养血方联合氢溴酸西酞普兰可有效改善卒中后失眠伴抑郁老年患者的抑郁和失眠症状,提高睡眠质量,调节神经递质的表达,提高临床疗效,且不增加不良反应的发生风险。

关键词：疏肝理气养血方氢溴酸西酞普兰抑郁卒中失眠神经递质

Enhanced Microwave Absorption Properties of Double-Layer Absorbers Based on Spherical NiO and Co_(0.2)Ni_(0.4)Zn_(0.4)Fe_2O_4 Ferrite Composites

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Acta Metallurgica Sinica(English Letters) 2018年第2期31卷 171-179页

作者： Pei-Jiang Liu Zheng-Jun Yao Vincent ming Hong Ng jin-Tang Zhou Zhi-Hong Yang ling-Bing Kong College of Materials and Technology Nanjing University of Aeronautics and Astronautics Nanjing 211100 China Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing 211100 China School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore

Microwave absorption properties of spherical NiO particles and Co0.2Ni0.4Zn0.4Fe2O4（CNZF） ferrites with single-layer and double-layer absorbers were studied in the frequency range of 2–18 GHz. The spherical NiO particles were synthesized by using a hydrothermal process, while the CNZF powders were prepared by using a sol–gel autoignition method. The double-layer absorbers, composed of 30 wt% NiO as matching layer and 30 wt% CNZF as absorption layer,with a total thickness of 3.2 mm, exhibited a maximum reflection loss（RL） of –67.0 d B at 9.2 GHz and an effective absorbing bandwidth below –10 d B to be 3.9 GHz from 7.0 to 10.9 GHz. The excellent microwave absorption performance of the double-layer absorbers should be ascribed to the high impedance matching ratio, the great microwave attenuation capability, and well-coupled layer.

关键词： Hierarchical NiO particle Ferrite Impedance matching Microwave absorption property

Colonic metastasis after resection of primary squamous cell carcinoma of the lung:A case report and literature review

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World Journal of Gastroenterology 2014年第19期20卷 5930-5934页

作者： Hai-Zhou Lou Chun-Hua Wang Hong-ming Pan Qin Pan jin Wang Department of Medical Oncology Sir Run Run Shaw HospitalCollege of MedicineZhejiang University Bachelor of nursing Department of AdmissionHangzhou Xiasha Hospital Department of Pathology Sir Run Run Shaw HospitalCollege of MedicineZhejiang University

Lung cancer is a common malignancy in the world; however symptomatic colonic metastasis from primary lung cancer is rare. A 64-year-old man was originally found poorly differentiated squamous cell carcinoma of right lung and received right lower lobectomy and lymph node dissection. Three years later, the patient presented to our emergency room with the symptom of upper abdominal pain and weight loss. Abdominal palpation and computed tomography scan of the abdomen revealed a large mass measuring 7.6 cm × 8.5 cm in the ascending colon. Colonoscopy and biopsy revealed poorly differentiated squamous cell carcinoma with similar morphological pattern to that of the previous lung cancer. Chemotherapy was given and the patient died 5 mo later. Lung cancer metastatic to the colon confers a poor prognosis: overall survival ranged from 5 wk to 1 year, with a median survival of 3 mo after the diagnosis of the colonic metastasis.

关键词： Lung neoplasm Colonic metastasis Squamous cell carcinoma Chemotherapy

Cloud Radiative Feedbacks during the ENSO Cycle Simulated by CAMS-CSM

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Journal of Meteorological Research 2019年第4期33卷 666-677页

作者： lin CHEN Lijuan HUA Xinyao RONG Jian LI Lu WANG Guo ZHANG ming SUN Zi'an GE Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environmental Change/Collaborative Innovation Center on Forecast and Evaluation of Meteorological DisastersNanjing University of Information Science&Technology(NUIST)Nanjing 210044 State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029 State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi'an 710061 State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesChina Meteorological AdministrationBeijing 100081

This study evaluated the simulated cloud radiative feedbacks(CRF)during the El Ni?o–Southern Oscillation(ENSO)cycle in the latest version of the Chinese Academy of Meteorological Sciences climate system model(CAMS-CSM).We conducted two experimental model simulations:the Atmospheric Model Intercomparison Project(AMIP),forced by the observed sea surface temperature(SST);and the preindustrial control(PIcontrol),a coupled run without flux *** found that both the experiments generally reproduced the observed features of the shortwave and longwave cloud radiative forcing(SWCRF and LWCRF)*** AMIP run exhibited better simulation performance in the magnitude and spatial distribution than the PIcontrol ***,the simulation biases in SWCRF and LWCRF feedbacks were linked to the biases in the representation of the corresponding total cloud cover and precipitation *** is interesting to further find that the simulation bias originating in the atmospheric component was amplified in the PIcontrol run,indicating that the coupling aggravated the simulation *** the PIcontrol run exhibited an apparent mean SST cold bias over the cold tongue,the precipitation response to the SST anomaly(SSTA)changes during the ENSO cycle occurred towards the relatively warmer western equatorial ***,the corresponding cloud cover and CRF shifted westward and showed a weaker magnitude in the PIcontrol run versus observational *** contrast,the AMIP run was forced by the observational SST,hence representing a more realistic *** results demonstrate the challenges of simulating CRF in coupled *** study also underscores the necessity of realistically representing the climatological mean state when simulating CRF during the ENSO cycle.

关键词： ENSO CAMS climate system model cloud radiative feedbacks ENSO cycle

Ground states, solitons and spin textures in spin-1 Bose-Einstein condensates

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Frontiers of physics 2013年第3期8卷 302-318页

作者： Shu-Wei Song lin Wen Chao-Fei Liu S.-C. Gou Wu-ming Liu Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China School of Science Jiangxi University of Science and Technology Ganzhou 341000 China Department of Physics National Changhua University of Education Changhua 50058 Taiwan China

We present an overview of our recent theoretical studies on the quantum phenomena of the spin-1 Bose Einstein condensates, including the phase diagram, soliton solutions and the formation of the topological spin textures. A brief exploration of the effects of spin-orbit coupling on the ground-state properties is given. We put forward proposals by using the transmission spectra of an optical cavity to probe the quantum ground states： the ferromagnetic and polar phases. Quasi-one-dimension solitons and ring dark solitons are studied. It is predicted that characteristics of the magnetic solitons in optical lattice can be tuned by controlling the long-range light-induced and static magnetic dipole- dipole interactions; solutions of single-component magnetic and single-, two-, three-components polar solitons are found; ring dark solitons in spin-1 condensates are predicted to live longer lifetimes than that in their scalar counterparts. In the formation of spin textures, we have considered the theoretical model of a rapidly quenched and fast rotating trapped spin-1 Bose Einstein condensate, whose dynamics can be studied by solving the stochastic projected Gross-Pitaevskii equations. Spontaneous generation of nontrivial topological defects, such as the hexagonal lattice skyrmions and square lattice of half-quantized vortices was predicted. In particular, crystallization of merons （half skyrmions） can be generated in the presence of spin-orbit coupling.

关键词： Bose-Einstein condensate spinor vortex lattice soliton spin orbit coupling

Multiple primary malignant tumors of upper gastrointestinal tract:A novel role of ^(18)F-FDG PET/CT

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World Journal of Gastroenterology 2010年第31期16卷 3964-3969页

作者： Long Sun Yong-Hong Sun Long Zhao Zuo-ming Luo Hua Wu Ying Wan Qin lin Minnan PET Center the First Affiliated Hospital of Xiamen University Xiamen 361003 Fujian Province China College of Life Science and Technology Huazhong University of Science and Technology Wuhan 430074 Hubei Province China Department of Radiation Xiamen 316003 China

AIM: To evaluate the capacity of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) for detecting multiple primary cancer of upper gastrointestinal (UGI) tract. METHODS: Fifteen patients (12 without cancer histories and 3 with histories of upper GI tract cancer) were investigated due to the suspicion of primary cancer of UGI tract on X-ray barium meal and CT scan. Subsequent whole body 18F-FDG PET/CT scan was carried out for initial staging or restaging. All the patients were fi nally confi rmed by endoscopic biopsy or surgery. The detection rate of multiple primary malignant cancers was calculated based on 18F-FDG PET/CT and endoscopic ***: 18F-FDG PET/CT scan was positive in 32 suspicious lesions, 30/32 were true positive primary lesions, and 2/32 were false positive. In 15 suspicious lesions with negative 18F-FDG PET/CT scan, 12/15 were true negative and 3/15 were false negative. Among the 15 patients, 12 patients had 29 primary synchronous tumors confirmed by pathology, including 8 cases of esophageal cancers accompanied with gastric cancer and 4 of hypopharynx cancers with esophageal cancer. The other 3 patients had 4 new primary metachronous tumors, which were multiple primary esophageal cancers. PET/CT imaging detected local lymph node metastases in 11 patients. Both local lymph node metastases and distant metastases were detected in 4 patients. On a per-primary lesion basis, the sensitivity, specificity, accuracy, negative predictive value and positive predictive value of 18F-FDG PET/CT for detecting multiple primary cancer of UGI tract were 90.9%, 85.7%, 89.4%, 80% and 93.7%, respectively. CONCLUSION: The whole body 18F-FDG PET/CT may play an important role in evaluating the multiple primary malignant tumors of UGI tract cancer.

关键词： Upper gastrointestinal tract cancer Esophageal cancer Gastric cancer Positron emission tomography/computed tomography 18F-fluorodeoxyglucose

A SIMPLE DEVICE FOR PARALLEL MEASUREMENTS OF SURFACE TENSIONS OF ORGANIC SOLVENTS

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A SIMPLE DEVICE FOR PARALLEL MEASUREMENTS OF SURFACE TENSION...

Metal-Free Catalyzed Cyclization of N-Methoxybenzamides to Construct Quaternary Carbon-Containing Isoindolinones

第十二届北京分析测试学术报告会暨展览会(BCEIA 2007)

作者： Jiangjiang LIU Haifang LI jin-ming lin Department of Chemistry Tsinghua University

Parallel measurements of the surface tensions of organic solvents were performed using a simple device on the basis of the principle of differential capillary rise *** theory,fabrication,and characterization of the device were *** our experiment,a very simple device was fabricated for *** pieces of glass plates(63×63 mm)were assembled with clamps separated with

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Chinese Journal of Chemistry 2021年第4期39卷 903-908页

作者： lin-Bao Zhang Zi-Chen Wang Sheng-Zheng Sun Shao-Fei Ni Li-Rong Wen ming Li State Key Laboratory Base of Eco-Chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdaoShandong 266042China Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province Shantou UniversityShantouGuangdong 515063China

Main observation and conclusion Through the intramolecular cyclization of N-methoxybenzamides,a simple and efficient method for constructing valuable isoindolinones under metal-free conditions was *** reaction was featured by employing low-cost catalyst,simple operation,100%atomic economy and excellent ***,a detailed computational study on the reaction system has been performed to clarify the mechanism.

关键词： Quaternary carbe Density functional theory Annulation Alkynes Synthetic methods