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Thermoelectric effect and devices on IVA and VA Xenes

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InfoMat 2021年第3期3卷 271-292页

作者： Beibei Zhu Qichao Chen siyao jiang Milo Holt Weinan Zhu Deji Akinwande Li Tao jiangsu Key Laboratory of Advanced Metallic Materials School of Materials Science and EngineeringSoutheast UniversityNanjingChina Microelectronics Research Center University of TexasAustinTexas

Emerging Xenes,mostly group IVA and VA elemental two-dimensional(2D)materials,have small and tunable band gaps between graphene and transition metal dichalcogenides,giving versatile electrical *** their microelectronic or optoelectronic properties are being extensively explored,there remains a lack of study on Xenes'uniquely advantageous thermoelectric *** review highlights state-of-the-art experimental and theoretical progress in the thermoelectric effect and devices of IVA and VA *** displaced,a.k.a.“buckled”or“puckered,”atomic arrays result in exotic and tunable electrical or thermal transport *** from chemical doping strategies usually employed in bulk thermoelectric materials,2D Xenes can be tuned by physical means,such as atomic layer control and quantum confinement effects.A precise and compatible platform for 2D thermoelectric effect and devices study is available via the engagement between micro/nanofabrication of 2D Xene transistors and thermal property measurement *** review also reveals potential thermoelectric applications of Xenes and their compounds(Bi2Te3,Bi2Se3,etc.),such as accurate stretchable temperature sensors,fast terahertz photodetectors,and so on.

关键词： 2D materials energy devices thermoelectric effect transistor Xenes

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空洞卷积的多尺度语义分割网络

计算机工程与应用 2019年第24期55卷 91-95页

作者：曲长波姜思瑶吴德阳辽宁工程技术大学辽宁葫芦岛125105 燕山大学河北秦皇岛066004

计算机硬件的发展极大程度地促进了计算机视觉的发展,卷积神经网络在语义分割中取得了令人瞩目的成就,但多卷积层叠加难免造成图像中目标边界信息的丢失。为了尽可能保留边界信息,提高图像分割精度,提出一种多尺度空洞卷积神经网络模型... 详细信息

计算机硬件的发展极大程度地促进了计算机视觉的发展,卷积神经网络在语义分割中取得了令人瞩目的成就,但多卷积层叠加难免造成图像中目标边界信息的丢失。为了尽可能保留边界信息,提高图像分割精度,提出一种多尺度空洞卷积神经网络模型。该模型利用多尺度池化适应图像中不同尺度目标,并利用空洞卷积学习目标特征,在更加准确识别目标的同时,提高目标边界的识别精度,在ISPRS Vaihingen数据集上的实验结果表明,提出的多尺度空洞卷积神经网络对于目标边界的拟合结果较为理想。

关键词：深度学习语义分割空洞卷积多尺度

综合护理干预对难治性癫痫患者心理状态及生活质量的影响

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中国医药科学 2018年第11期8卷 65-67,71页

作者：丁娟蒋彬玉蒋思瑶广东三九脑科医院肿瘤科广东广州510510

目的探讨综合护理干预对难治性癫痫患者心理状态及生活质量的影响。方法选取2015年3月~2017年3月于我院就诊的195例难治性癫痫患者为研究对象,按随机数字表法分为观察组(96例)和对照组(99例),对照组给予常规护理,观察组给予以个体化心... 详细信息

目的探讨综合护理干预对难治性癫痫患者心理状态及生活质量的影响。方法选取2015年3月~2017年3月于我院就诊的195例难治性癫痫患者为研究对象,按随机数字表法分为观察组(96例)和对照组(99例),对照组给予常规护理,观察组给予以个体化心理干预和延续性健康指导为主的综合护理干预,比较两组患者出院时心理状态和出院3个月时的生活质量。结果观察组患者SCL-90得分(128.35±7.84)分低于对照组(152.23±10.72)分,出院3个月时,观察组患者的生活质量总得分(199.93±11.44)分高于对照组(188.73±12.05)分,且在除"社会功能"和"总体健康"外的其他维度得分均高于对照组,差异有统计学意义(P<0.05)。结论以个体化心理干预和延续性健康指导为主的综合护理干预能够有效改善难治性癫痫患者的心理状态和生活质量,该方法值得在临床推广应用。

关键词：综合护理干预难治性癫痫心理状态生活质量

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RGB空间彩色零水印算法

计算机科学与探索 2019年第4期13卷 666-680页

作者：曲长波吴德阳肖成龙郭鹏飞姜思瑶辽宁工程技术大学软件学院辽宁葫芦岛125105

针对现有零水印算法使用的版权标识大都为结构信息单一的二值图像,且对于几何攻击鲁棒性差等问题,提出一种RGB空间彩色零水印算法。首先将彩色载体图像和彩色水印转换成R、G、B颜色分量,其次对载体图像三个空间分量分别进行Arnold置乱... 详细信息

针对现有零水印算法使用的版权标识大都为结构信息单一的二值图像,且对于几何攻击鲁棒性差等问题,提出一种RGB空间彩色零水印算法。首先将彩色载体图像和彩色水印转换成R、G、B颜色分量,其次对载体图像三个空间分量分别进行Arnold置乱和分块处理;然后计算每个颜色通道各个子块的均值,构成十进制均值矩阵,将均值矩阵转换成8位二进制矩阵,分别生成三个颜色通道的二进制特征矩阵;最后将置乱后的彩色水印分量转换成8位二进制水印信息,分别与载体图像的三个二进制特征矩阵异或生成三个零水印,将三个零水印通过逆编码技术生成彩色零水印。实验结果表明,算法能够有效地抵抗非几何攻击、几何攻击和组合攻击,与相似的零水印算法相比,鲁棒性更好,安全性更高。

关键词： RGB空间彩色零水印鲁棒性 Arnold置乱

硫掺杂管状多孔g-C_(3)N_(4)光催化剂的制备及其催化性能

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化学反应工程与工艺 2024年第4期40卷 306-313页

作者：周宣伯姜思瑶李秀梅郭娜通化师范学院化学学院吉林通化134002

以体相石墨相氮化碳(g-C_(3)N_(4))为原料,硫代乙酰胺(TAA)为硫源,通过一步水热法得到管状多孔S掺杂g-C_(3)N_(4)光催化剂(SCNB-18)。S的引入扩大了g-C_(3)N_(4)的可见光吸收范围,且管状多孔的形貌特征提高了光催化剂的比表面积,与体相g... 详细信息

以体相石墨相氮化碳(g-C_(3)N_(4))为原料,硫代乙酰胺(TAA)为硫源,通过一步水热法得到管状多孔S掺杂g-C_(3)N_(4)光催化剂(SCNB-18)。S的引入扩大了g-C_(3)N_(4)的可见光吸收范围,且管状多孔的形貌特征提高了光催化剂的比表面积,与体相g-C_(3)N_(4)相比,所合成SCNB-18的比表面积高达170.6 m^(2)/g。另外,对样品的微观形貌结构以及光电性能进行表征,并通过光催化分解水制氢以及降解水中污染物来评估样品的催化性能。研究结果表明,SCNB-18光催化剂具有优异的光催化活性和良好的循环稳定性。

关键词：石墨相氮化碳硫代乙酰胺光催化制氢污染物降解

Pressure Drop of Liquid–Solid Two-Phase Flow in the Vertical Tube Bundle of a Cold-Model Circulating Fluidized Bed Evaporator

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Transactions of Tianjin University 2019年第6期25卷 618-630页

作者： Feng jiang siyao Lv Guopeng Qi Xiaoling Chen Xiulun Li School of Chemical Engineering and Technology Tianjin UniversityTianjin 300350China School of Biological and Environmental Engineering Tianjin Vocational InstituteTianjin 300410China

A cold-model vertical multi-tube circulating fluidized bed evaporator was designed and built to conduct a visualization study on the pressure drop of a liquid–solid two-phase flow and the corresponding particle *** and polyformaldehyde particle(POM)were used as the liquid and solid phases,*** effects of operating parameters such as the amount of added particles,circulating flow rate,and particle size were systematically *** results showed that the addition of the particles increased the pressure drop in the vertical tube *** maximum pressure drop ratios were 18.65%,21.15%,18.00%,and 21.15%within the experimental range of the amount of added particles for POM1,POM2,POM3,and POM4,*** pressure drop ratio basically decreased with the increase in the circulating flow rate but fluctuated with the increase in the amount of added particles and particle *** difference in pressure drop ratio decreased with the increase in the circulating flow *** the amount of added particles increased,the difference in pressure drop ratio fluctuated at low circulating flow rate but basically decreased at high circulating flow *** pressure drop in the vertical tube bundle accounted for about 70%of the overall pressure drop in the up-flow heating chamber and was the main component of the overall pressure within the experimental ***-dimensional phase diagrams were established to display the variation ranges of the pressure drop and pressure drop ratio in the vertical tube bundle corresponding to the operating *** research results can provide some reference for the application of the fluidized bed heat transfer technology in the industry.

关键词： Pressure drop Liquid-solid two-phase flow Circulating fluidized bed evaporator Vertical tube bundle Heat transfer enhancement Fouling prevention Descaling

Conjugate ferrocene polymer derived magnetic Fe/C nanocomposites for electromagnetic absorption application

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Journal of Materials Science & Technology 2024年第8期175卷 125-131页

作者： Aming Xie Zhendong Ma Ziming Xiong Weijin Li Lai jiang Qiu Zhuang siyao Cheng Wei Lu School of Mechanical Engineering Nanjing University of Science&TechnologyNanjing 210094China State Key Laboratory of Explosion&Impact and Disaster Prevention&Mitigation Army Engineering University of PLANanjing 210007China School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China Shanghai Key Lab.of D&A for Metal-Functional Materials School of Materials Science&EngineeringTongji UniversityShanghai 201804China

Coordination bonds are relatively unstable compared to covalent bonds,and common carbon-based absorbing material precursors are bonded in the form of coordination *** this work,we have introduced ferrocene units into conjugated microporous polymers(CMP)in one step by Suzuki *** adjusting the proportion of ferrocene units,a series of magnetic Fe-C nanocomposites(Fe-P-XC)derived from conjugated ferrocene polymers without heteroatom doping(N,S,P,etc.)were *** Fe-P-2C composite has good absorption properties with minimum reflection loss at 4.4 GHz(-58.66 dB)and effective absorption bandwidth(EAB)of 6.28 GHz at 2.4 mm(11.72-18 GHz).Compared with the precursor materials formed by coordination bonds,the present work reveals the electromagnetic wave absorption mechanism of carbon-based materials without heteroatom doping through a simple and effective strategy.

关键词： Covalent bonds Suzuki reaction Conjugated ferrocene polymers Electromagnetic wave absorption

Superbroad-band actively tunable acoustic metamaterials driven from poly(ethylene terephthalate)/carbon nanotube nanocomposite membranes

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Nano Research 2021年第1期14卷 100-107页

作者： Ying Li Wen Ning Qingyu Peng Minglong Yang Dongyi Lei siyao Guo Peng Liu Kaili jiang Xiaodong He Yibin Li School of Civil Engineering Qingdao University of TechnologyQingdao 266033China National Key Laboratory of Science and Technology for National Defence on Advanced Composites in special Environments Harbin Institute of TechnologyHarbin 150080China State Key Laboratory of Low-Dimensional Quantum Physics Department of Physics&Tsinghua-Foxconn Nanotechnology Research CenterTsinghua University&Collaborative Innovation Center of Quantum MatterBeijing 100084China Shenzhen STRONG Advanced Materials Institute Ltd.Corp Shenzhen 518000China

Actively tunable acoustic metamaterials have attracted ever increasing ***,their tunable frequency range is quite narrow(tens of Hz)even under ultrahigh applied voltage(about 1,000 V).Here,we report a superbroad-band actively tunable acoustic metamaterials with the bandwidth over 400 Hz under a low *** the actively tunable acoustic metamaterials,the acoustic membrane is a laminated nanocomposite consisting of a poly(ethylene terephthalate)(PET)and super-aligned carbon nanotube(CNT)drawn from CN T forest *** laminated nanocomposite membrane exhibits adjustable acoustic properties,whose modulus can be adjusted by applying external electric *** maximum frequency bandwidth of PET/CN T nanocomposite membrane reaches 419 Hz when applying an external DC voltage of 60 *** actively tunable acoustic metamaterials with superbroad-band and lightweight show very promising foreground in noise reduction applications.

关键词： poly(ethylene terephthalate)/carbon nanotube nanocomposite membrane active control acoustic metamaterials noise reduction

Topical treatment of tyrosine kinase 2 inhibitor through borneol-embedded hydrogel:Evaluation for preventive,therapeutic,and Recurrent management of psoriasis

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Bioactive Materials 2024年第11期41卷 83-95页

作者： Yuhsien Lai Xuesong Wu Zhuoyu jiang Yifei Fang Xiuting Liu Dan Hong Yanyun jiang Guozhen Tan Shiqi Tang siyao Lu David Wei Sam T.Hwang Kit S.Lam Liangchun Wang Yanyu Huang Zhenrui Shi Department of Dermatology Sun Yat-sen Memorial HospitalSun Yat-sen University510120China Department of Dermatology University of California-DavisSacramentoCA95817USA School of Biomedical Engineering Sun Yat-sen University518107China Department of Biochemistry and Molecular Medicine University of California-DavisSacramentoCA95817USA

Psoriasis,an immune-mediated inflammatory skin disorder characterized by a chronically relapsing-remitting course,continues to be primarily managed through topical *** oral administration of tyrosine kinase 2 inhibitors(TYK2i)stands as an effective approach for psoriasis treatment,the potential efficacy of topical application of TYK2i remains ***,the carbomer/alginic acid hydrogel is embedded with borneol(BO)as a new topical carrier of TYK2i for achieving enhanced transdermal permeation and anti-psoriasis *** hydrogel system,i.e.,TYK2i-BO-gel,exhibits significantly improved preventative and therapeutic effects in mice models of psoriasiform dermatitis,as evidenced by phenotypical images,psoriasis severity score index(PSI),histology,immunohistochemical staining,and PCR ***,TYK2i-BO-gel outperforms conventional topical corticosteroid therapy by significantly preventing psoriatic lesion recurrence as measured by a nearly 50%reduction in ear thickness changes(p<0.0001),PSI(p<0.0001)and epidermal thickness(p<0.05).Moreover,a strengthened anti-inflammatory effect caused by TYK2i-BO-gel is seen in a human skin explant model,implying its potential application for human *** the addition of BO,the TYK2i-BO-gel not only increases skin permeability but also inhibits the expression of antimicrobial peptides in keratinocytes and facilitates the anti-Th17 response of TYK2i with suppressed activation of ***,this work represents the accessibility and effectiveness of TYK2i-BO-hydrogel as a new topical formulation for anti-psoriasis management and shows great potential for clinical application.

关键词： Psoriasis Topical hydrogel Transdermal delivery Tyrosine kinase 2 inhibitor Borneol