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Circle of Friends

China Today 2025年第1期74卷 32-35页

作者： ZHOU lin 不详

CISCE brings together partners on the global industrial chain to collaborate and enhance global *** in South Yorkshire in north-central England,British Steel,originally founded in 1967,is the U.K.’s only manufacturer of *** now produces three million tons of crude steel annually and has the distinction of maintaining stable production even during the COVID-19 pandemic,with its ironmaking,steelmaking and all rolling mills in full operation.

关键词： annually partner CISC

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不同因素影响下联络通道温度场的规律

海南大学学报（自然科学版） 2021年第4期39卷 397-406页

作者：林小淇胡俊李珂熊辉曾东灵黄兴强海南大学土木建筑工程学院海南海口570228 海南省水文地质工程地质勘察院海南海口5702063 山东嘉御工程建设有限公司山东邹城273500

以内蒙古呼和浩特市地铁2号线1号联络通道为工程背景,利用有限元软件建立三维瞬态温度场模型,对联络通道的温度场变化进行了数值模拟分析,并对比了实际测量温度,分析了不同因素对冻结温度场的影响规律.结果显示:实际测量温度与数值模拟... 详细信息

以内蒙古呼和浩特市地铁2号线1号联络通道为工程背景,利用有限元软件建立三维瞬态温度场模型,对联络通道的温度场变化进行了数值模拟分析,并对比了实际测量温度,分析了不同因素对冻结温度场的影响规律.结果显示:实际测量温度与数值模拟温度的变化趋势一致,数值模拟得到的瞬态温度场可以较为真实地反映工程实际情况;冻结管排布越密集,形成冻结壁的时间就越短,冻结壁的厚度也就越大;在冻结40 d时,联络通道两侧为危险部位,故在开挖时要注意联络通道两侧的土体温度;导热系数和盐水流量的变化对冻结温度场的变化有较大的影响,且两者越大,形成冻结帷幕的速度就越快;比热容和潜热对温度场的影响较小,在实际工程中应主要考虑导热系数和盐水流量对温度场的影响.

关键词：地铁隧道联络通道冻结法温度场数值模拟

Nanostructured ZnO/BiVO_(4)I-scheme heterojunctions for piezocatalytic degradation of organic dyes via harvesting ultrasonic vibration energy

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 488-497页

作者： Yiling Li Xiaoyao Yu Yingjie Zhou Yao lin Ying Wu Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004China

BiVO_(4)porous spheres modified by ZnO were designed and synthesized using a facile two-step *** resulting ZnO/BiVO_(4)composite catalysts have shown remarkable efficiency as piezoelectric catalysts for degrading Rhodamine B(RhB)unde mechanical vibrations,they exhibit superior activity compared to pure *** 40wt%ZnO/BiVO_(4)heterojunction composite displayed the highest activity,along with good stability and *** enhanced piezoelectric catalytic activity can be attributed to the form ation of an I-scheme heterojunction structure,which can effectively inhibit the electron-hole ***,hole(h+)and superoxide radical(·O_(2)^(-))are proved to be the primary active ***,ZnO/BiVO_(4)stands as an efficient and stable piezoelectric catalyst with broad potential application in the field of environmental water pollution treatment.

关键词： piezoelectric catalytic heterojunction dye degradation ultrasonic vibration

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某医院普外科医务人员手卫生依从性调查分析

国际护理学杂志 2018年第13期37卷 1756-1758页

作者：林晓琪吴崇颖丁欲晓王灿建陈燕贤汕头大学医学院附属第二医院广东汕头515041 汕头市澄海区澄华街道澄华社区卫生服务中心汕头市澄海区凤翔街道坝头社区卫生服务中心汕头市澄海区莲上镇卫生院

目的通过调查和评价分析医院普外科医务人员手卫生状况，了解手卫生现状与影响因素。方法采用自行设计的手卫生知识调查表，对我院普外科90名医务人员进行调查。其中医生32名，护士58名。结果有94．44％（85／90）的医务人员知道七步洗... 详细信息

目的通过调查和评价分析医院普外科医务人员手卫生状况，了解手卫生现状与影响因素。方法采用自行设计的手卫生知识调查表，对我院普外科90名医务人员进行调查。其中医生32名，护士58名。结果有94．44％（85／90）的医务人员知道七步洗手法，10％（9／90）认为戴手套可替代洗手或手消毒，医生、护士在接触患者前后和医疗、护理操作前后的洗手率差异均有统计学意义（P〈0．05）。医生、护士洗手前后平均带菌量分别为（46．033±4．673）cfu／cm^2、（36．281±3．029）cfu／cm^2、（8．392±1．065）cfu／cm^2、（5．368±0．573）cfu／cm^2。结论通过洗手能有效去除普外科医务人员手部的大部分细菌，管理者应加强手卫生知识培训与监管，提高医务人员的手卫生意识和质量，防控医院感染的发生。

关键词：普外科医务人员手卫生依从性

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缺位型硅钨酸盐体外抗肿瘤活性研究

吉林医药学院学报 2018年第1期39卷 16-19页

作者：高莹雪陈梦夏梦雨林小淇薛莹雪吉林医药学院吉林吉林132013 吉林医药学院化学教研室吉林吉林132013

目的用合成的缺位型硅钨酸盐Na_(10)[α-SiW_9O_(34)]·18H_2O(简称SiW_9)探究其体外抗肿瘤活性。方法通过IR光谱对其结构进行表征,并应用四甲基偶氮唑盐比色法分析SiW_9对人肝癌细胞(Hep G2)以及人肺癌细胞(A549)的增殖抑制活性。采用... 详细信息

目的用合成的缺位型硅钨酸盐Na_(10)[α-SiW_9O_(34)]·18H_2O(简称SiW_9)探究其体外抗肿瘤活性。方法通过IR光谱对其结构进行表征,并应用四甲基偶氮唑盐比色法分析SiW_9对人肝癌细胞(Hep G2)以及人肺癌细胞(A549)的增殖抑制活性。采用光学显微镜观察两种肿瘤细胞在不同浓度药物作用后的形态变化。结果缺位型硅钨酸盐SiW_9对两种肿瘤细胞均有增殖抑制作用,具有药物浓度依赖性,对两种肿瘤细胞的IC50值分别为(2.4±2.8)×10^(-4)mol/L和(1.8±3.1)×10^(-4)mol/L。光学显微镜下经药物作用后的肿瘤细胞出现皱缩、变圆、缩小等形态变化。结论硅钨酸盐SiW_9具有体外抗肿瘤活性,能够抑制肿瘤细胞增殖。

关键词：缺位型硅钨酸盐抗肿瘤体外研究

地方感影响教师职业态度的内在机理研究——基于粤渝等地中小学教师的调查

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教育与教学研究 2020年第8期34卷 30-44页

作者：赵敏林晓琦刘旭刘昭晨何晋铭黄明亮华南师范大学政治与公共管理学院教育经济与管理系粤港澳大湾区教育与社会融合研究中心广东广州510006 华南师范大学政治与公共管理学院

当今社会是一个流动的社会,教师离开出生地异地教学成为一种常态。当教师移民到异地工作或在异地定居时,需要与生活的新地方建立一种新的联系,也需要对新生活的地方注入新的认知、认同与情感,这种新的认知、认同与情感,就是地方感。地... 详细信息

当今社会是一个流动的社会,教师离开出生地异地教学成为一种常态。当教师移民到异地工作或在异地定居时,需要与生活的新地方建立一种新的联系,也需要对新生活的地方注入新的认知、认同与情感,这种新的认知、认同与情感,就是地方感。地方感可以重塑教师的生活态度,也可以影响教师的职业态度。在自编问卷的基础上,选取广东、重庆等地移民中小学教师相对较多的地域进行了较大范围调查,获1669份有效问卷。运用统计分析软件Amos 17.0和SPSS 24.0进行检验与分析,研究发现:地方感与教师职业态度之间存在显著正相关,教师地方感影响教师职业态度;地方性知识影响教师职业态度;地方依赖影响教师职业态度;地方依恋对教师职业态度显著于地方性知识、地方依赖的影响。因此,传承优秀地方性文化、完善移民教师激励政策和建设和谐幸福城市是提高教师地方感的有益策略,更是提高教师职业态度的有效策略。

关键词：中小学教师地方感职业态度内在机理

盾构对接新型冻结装置地层加固温度场的演变规律

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海南大学学报（自然科学版） 2023年第2期41卷 199-210页

作者：杨坤胡俊曾晖林小淇任军昊王志鑫海南大学土木建筑工程学院海南海口570228 五邑大学土木建筑学院广东江门529020 海南省水文地质工程地质勘察院海南海口570206

针对埋深大且距离长的盾构对接工况,采用人工地层冻结技术来进行加固,并运用有限元软件ADINA模拟了新型盾构对接冻结加固模型,分析了不同降温计划下温度场发展的趋势及演变规律,探究了结合环形刀盘的新型冻结装置的较佳降温计划和刀盘... 详细信息

针对埋深大且距离长的盾构对接工况,采用人工地层冻结技术来进行加固,并运用有限元软件ADINA模拟了新型盾构对接冻结加固模型,分析了不同降温计划下温度场发展的趋势及演变规律,探究了结合环形刀盘的新型冻结装置的较佳降温计划和刀盘冻结的范围.结果表明:此新型冻结装置距冻结源越近,则其冻结效果越好;在两冻结装置联合作用下,当刀盘外圈取1 m冻结和采用降温计划5时,该方案的效果最佳并且较经济,此时保护帷幕恰好厚为1.60 m.此研究将丰富和改善地下结构工程的筑建技术,对于国内诸多临海城市,尤其是对含水丰富的软土区域的地下空间开发和利用具有实用价值.

关键词：盾构对接人工冻结数值模拟环形刀盘

Designing Electronic Structures of Multiscale Helical Converters for Tailored Ultrabroad Electromagnetic Absorption

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Nano-Micro Letters 2025年第1期17卷 439-455页

作者： Zhaobo Feng Chongbo Liu Xin Li Guangsheng Luo Naixin Zhai Ruizhe Hu Jing lin Jinbin Peng Yuhui Peng Renchao Che Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle School of Environmental and Chemical EngineeringNanchang Hangkong UniversityNanchang 330063People’s Republic of China School of Physics and Materials Nanchang UniversityNanchang 330031People’s Republic of China Key Laboratory of Nondestructive Testing Ministry of EducationNanchang Hangkong UniversityNanchang 330063People’s Republic of China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsAcademy for Engineering and TechnologyFudan UniversityShanghai 200438People’s Republic of China

Atomic-scale doping strategies and structure design play pivotal roles in tailoring the electronic structure and physicochemical property of electromagnetic wave absorption(EMWA)***,the relationship between configuration and electromagnetic(EM)loss mechanism has remained ***,drawing inspiration from the DNA transcription process,we report the successful synthesis of novel in situ Mn/N co-doped helical carbon nanotubes with ultrabroad EMWA *** calculation and EM simulation confirm that the orbital coupling and spin polarization of the Mn–N4–C configuration,along with cross polarization generated by the helical structure,endow the helical converters with enhanced EM *** a result,HMC-8 demonstrates outstanding EMWA performance,achieving a minimum reflection loss of−63.13 dB at an ultralow thickness of 1.29 *** precise tuning of the graphite domain size,HMC-7 achieves an effective absorption bandwidth(EAB)of 6.08 GHz at 2.02 mm ***,constructing macroscale gradient metamaterials enables an ultrabroadband EAB of 12.16 GHz at a thickness of only 5.00 mm,with the maximum radar cross section reduction value reaching 36.4 dB *** innovative approach not only advances the understanding of metal–nonmetal co-doping but also realizes broadband EMWA,thus contributing to the development of EMWA mechanisms and applications.

关键词： Metal-nonmetal co-doping 3d-2p orbital coupling Spin polarization Helical structure Broadband EM wave absorption

Treadmill exercise in combination with acousto-optic and olfactory stimulation improves cognitive function in APP/PS1 mice through the brain-derived neurotrophic factor-and Cygb-associated signaling pathways

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Neural Regeneration Research 2025年第9期20卷 2706-2726页

作者： Biao Xiao Chaoyang Chu Zhicheng lin Tianyuan Fang Yuyu Zhou Chuxia Zhang Jianghui Shan Shiyu Chen Liping Li Department of Physiology and Pharmacology Health Science CenterNingbo UniversityNingboZhejiang ProvinceChina Ningbo Key Laboratory of Behavioral Neuroscience Health Science CenterNingbo UniversityNingboZhejiang ProvinceChina Key Laboratory of Addiction Research of Zhejiang Province NingboZhejiang ProvinceChina

A reduction in adult neurogenesis is associated with behavioral abnormalities in patients with Alzheimer's ***,enhancing adult neurogenesis represents a promising therapeutic approach for mitigating disease symptoms and ***,nonpharmacological interventions aimed at inducing adult neurogenesis are currently *** individual non-pharmacological interventions,such as aerobic exercise,acousto-optic stimulation,and olfactory stimulation,have shown limited capacity to improve neurogenesis and cognitive function in patients with Alzheimer's disease,the therapeutic effect of a strategy that combines these interventions has not been fully *** this study,we observed an age-dependent decrease in adult neurogenesis and a concurrent increase in amyloid-beta accumulation in the hippocampus of amyloid precursor protein/presenilin 1 mice aged 2-8 *** deposition became evident at 4 months,while neurogenesis declined by 6 months,further deteriorating as the disease ***,following a 4-week multifactor stimulation protocol,which encompassed treadmill running(46 min/d,10 m/min,6 days per week),40 Hz acousto-optic stimulation(1 hour/day,6 days/week),and olfactory stimulation(1 hour/day,6 days/week),we found a significant increase in the number of newborn cells(5'-bromo-2'-deoxyuridine-positive cells),immature neurons(doublecortin-positive cells),newborn immature neurons(5'-bromo-2'-deoxyuridine-positive/doublecortin-positive cells),and newborn astrocytes(5'-bromo-2'-deoxyuridine-positive/glial fibrillary acidic protein-positive cells).Additionally,the amyloid-beta load in the hippocampus *** findings suggest that multifactor stimulation can enhance adult hippocampal neurogenesis and mitigate amyloid-beta neuropathology in amyloid precursor protein/presenilin 1 ***,cognitive abilities were improved,and depressive symptoms were alleviated in amyloid precursor protein/presenilin 1 mice

关键词： acousto-optic stimulation adult neurogenesis Alzheimer's disease amyloid precursor protein/presenilin 1 mice amyloid-beta deposition brain cell apoptosis cognitive impairment depression-like behavior involuntary treadmill exercise olfactory stimulation serum metabolites