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Polaron-assisted nonadiabatic dynamics in protonated TiO_(2) with surface water molecule

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ChemPhysMater 2023年第4期2卷 331-336页

作者： zhongfei xu Chuanjia Tong Rutong Si Gilberto Teobaldi Limin Liu The Key Laboratory of Resources and Environmental System Optimization Ministry of EducationCollege of Environmental Science and EngineeringNorth China Electric Power UniversityBeijing 102206China School of Physics and Electronics Central South UniversityChangsha 410083China Beijing Computational Science Research Center Beijing 100193China The Abdus Salam International Centre for Theoretical Physics Trieste 34151Italy Scientific Computing Department Science and Technology Facilities Council UK Research and Innovation(STFC-UKRI)Rutherford Appleton LaboratoryHarwell CampusDidcot OX110QXUnited Kingdom School of Chemistry University of SouthamptonHighfieldSouthampton SO171BJUnited Kingdom School of Physics Beihang UniversityBeijing 100191China

We investigated the polaron-assisted nonadiabatic dynamics in protonated TiO_(2),as well as the polaron-H_(2)O coupling and its effects on the relaxation of photogenerated *** observed that different polaron hopping regimes result in varied nonadiabatic couplings and relaxations of excited electrons from the conduction band minimum to the gap states of protonated TiO_(2),with a weak dependence on the actual trapping site of the ***-adsorbed H_(2)O molecules can attract polarons toward the adsorbed Ti sites,with the coupling between H_(2)O and the polaron being inversely proportional to their *** findings suggest that the lifetime of the photogenerated charge carriers can be extended by reducing the polaron-H_(2)O distances,with expected benefits to the efficiency of the reduced TiO 2 samples for photocatalytic applications.

关键词： Protonated Polaron-H_(2)O coupling Nonadiabatic molecule dynamics Lifetime Anatase

Clinical application of the deep circumflex iliac artery perforator flap(DCIAPF) in the reconstruction of complex defects of the mandible

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Clinical application of the deep circumflex iliac artery per...

2020年全国口腔颌面-头颈肿瘤学术大会暨中华口腔医学会口腔颌面-头颈肿瘤专业委员会学术年会——创新超越、共赢未来

作者： Qiang xu zhongfei xu School of Stomatology-China Medical University

Purpose/Background:The purpose of this study was to investigate the clinical value of deep circumflex iliac artery perforator flap DCIAPF in reconstructing complex defects of mandibular bone. Materials and Methods:From June 2015 to September 2019, 7 cases using the DCIAPF and 6 cases using the double-barrel fibula vascularized flap(DBFVF) for the reconstruction of complex mandibular defects were reported in our hospital. The intraoperative correlations were recorded and compared.

关键词： the deep circumflex iliac artery perforator flap DCIAPF reconstruction defects of the mandible

Comparison of donor site complications of supra-versus subfascially harvested anterolateral thigh perforator free flaps: A meta-analysis

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Comparison of donor site complications of supra-versus subfa...

2020年全国口腔颌面-头颈肿瘤学术大会暨中华口腔医学会口腔颌面-头颈肿瘤专业委员会学术年会——创新超越、共赢未来

作者： Xingzhou Su zhongfei xu School of Stomatology-China Medical University

Purpose/Background:This study aimed to compare the complications at the donor site of supra-versus subfascially harvested anterolateral thigh perforator free flaps. Materials and Methods:We searched Pub Med, Web of Sc... 详细信息

关键词： donor site complications anterolateral thigh perforator free flaps subfascially suprafascially meta-analysis

Sweat Gland Carcinoma of the Head and Neck: Case Report and Literature Review

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Sweat Gland Carcinoma of the Head and Neck: Case Report and ...

2019第一届全国口腔颌面-头颈肿瘤学术大会——聚合引领、协同发展

作者： Qiang xu zhongfei xu Shuai Wang 中国医科大学附属口腔医院口腔颌面头颈外科

Purpose:The main aim of this article is to discuss andsummarize the research advancements and the treatment methods for sweat gland carcinoma(SGC) based on 2 cases of sweat gland carcinoma and the related literature. Materials and methods:This paper presents 2 patients with sweat gland carcinoma who were treated in the Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University from 2007 to 2013. We analyzed the clinical features, therapies and prognosis of the patients and searched for related literatures.

关键词： Case Report and Literature Review Sweat Gland Carcinoma of the Head and Neck

MicroRNA-532-3p Suppresses Malignant Behaviors of Tongue Squamous Cell Carcinoma via Regulating CCR7

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MicroRNA-532-3p Suppresses Malignant Behaviors of Tongue Squ...

2020年全国口腔颌面-头颈肿瘤学术大会暨中华口腔医学会口腔颌面-头颈肿瘤专业委员会学术年会——创新超越、共赢未来

作者： Cuijuan Feng Shufen Ge zhongfei xu China Medical University

Purpose/Background : To provide better therapeutic avenues for treating tongue squamous cell carcinoma. Materials and Methods:A series of experiments about the effects of microRNA(miR)-532-3p on TSCC malignant behaviors were carried out. Results:The result showed that miR-532-3p was downregulated and C-C chemokine receptor 7(CCR7) was up-regulated in the tumor tissues compared with those in the paired paratumor tissues. Further,

关键词： MicroRNA-532-3p Tongue Squamous Cell Carcinoma CCR7

Reconstruction of a subtotal upper lip defect with a facial artery musculomucosal flap, kite flap, and radial forearm free flap: a case report

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Reconstruction of a subtotal upper lip defect with a facial ...

2019第一届全国口腔颌面-头颈肿瘤学术大会——聚合引领、协同发展

作者： Shuai Wang Zeliang Zhang zhongfei xu Weiyi Duan 中国医科大学附属口腔医院

Background:For reconstructive surgeons, massive midface defects, including large, full-thickness wounds on the upper lip, can be very challenging. Although there are many methods for reconstruction of upper lip defect... 详细信息

关键词： Lip reconstruction Facial artery musculomucosal flap Kite flap Radial forearm free flap

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头颈部缺损修复重建中受区静脉的比较分析

口腔医学研究 2020年第11期36卷 1004-1006页

作者：尹寿成徐中飞中国医科大学口腔医学院·附属口腔医院口腔颌面外科辽宁省口腔疾病重点实验室辽宁沈阳110002

头颈部肿瘤手术切除和外伤等原因常导致组织缺损及功能障碍,因此在手术治疗的同时,重建头颈部组织缺损的解剖形态和生理功能极其重要。显微血管游离皮瓣移植已成为修复头颈部组织缺损的主要方法,选择合适的受区血管是保证游离皮瓣移植... 详细信息

头颈部肿瘤手术切除和外伤等原因常导致组织缺损及功能障碍,因此在手术治疗的同时,重建头颈部组织缺损的解剖形态和生理功能极其重要。显微血管游离皮瓣移植已成为修复头颈部组织缺损的主要方法,选择合适的受区血管是保证游离皮瓣移植手术成功的关键因素。头颈部可供外科医生选择的受区静脉包括面总静脉、舌静脉、甲状腺上静脉、颈横静脉、颞浅静脉、颈外静脉、颈内静脉等。目前,静脉血栓是游离皮瓣重建失败的主要原因,因此选择合适的受区静脉非常重要。本文对头颈部缺损修复重建中影响受区静脉选择的因素进行综述,为临床上的选择和进一步研究提供证据。

关键词：头颈缺损重建游离皮瓣静脉血栓

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二维层状材料过渡金属硫化物

北京航空航天大学学报 2016年第7期42卷 1311-1325页

作者：张千帆高磊田洪镇徐忠菲王亚鹏北京航空航天大学材料科学与工程学院北京100083

过渡金属硫化物(TMDCs)纳米材料优异的性能有利于它在纳米电子学、光电子学和自旋电子学等领域广泛地应用。主要介绍了TMDCs材料最新的进展,概述了TMDCs的制备方法、性能以及纳米结构形态。纳米TMDCs层状材料边缘态对材料性能会产生重... 详细信息

过渡金属硫化物(TMDCs)纳米材料优异的性能有利于它在纳米电子学、光电子学和自旋电子学等领域广泛地应用。主要介绍了TMDCs材料最新的进展,概述了TMDCs的制备方法、性能以及纳米结构形态。纳米TMDCs层状材料边缘态对材料性能会产生重要的影响,着重介绍了低维纳米材料边缘态对性能(化学性能、电子性能和磁性能)的影响以及边缘态最新的研究进展,特别是TMDCs材料边缘态的磁性能为其在磁性和自旋领域潜在性的应用提供了可能,并且引起了广大研究者们的兴趣,从实验和理论2个方面总结了该领域的研究成果,为二维层状TMDCs材料的研究提供了支持。

关键词：过渡金属硫化物(TMDCs) 层状材料纳米结构边缘态磁性

OPTIMAL INVESTMENT WITH NOISE TRADING RISK

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Journal of Systems Science & Complexity 2008年第4期21卷 519-526页

作者： Yunhui xu zhongfei LI Ken Seng TAN Lingnan College Sun Yat-Sen University Guangzhou 510275 China Department of Statistics and Actuarial Science University of Waterloo Waterloo Ontario N2L 3G1 Canada. Lingnan College Sun Yat-Sen University Guangzhou 510275 China Department of Statistics and Actuarial Science University of Waterloo Waterloo Ontario N2L 3G1 Canada China Institute for Actuarial Science Central University of Finance and Economics Beijing 100081 China.

This paper investigates the optimal dynamic investment for an investor who maximizes constant absolute risk aversion （CARA） utility in a discrete-time market with a riskfree bond and a risky stock. The risky stock is assumed to present both the dividend risk and the price risk. With our assumptions, the dividend risk is equivalent to fundamental risk, and the price risk is equivalent to the noise trading risk. The analytical expression for the optimal investment strategy is obtained by dynamic programming. The main result in this paper highlights the importance of differentiating between noise trading risk and fundamental risk for the optimal dynamic investment.

关键词： Dynamic investment noise trade overlapping generation serial correlation.