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Effect of spatially nonlocal versus local optical response of a gold nanorod on modification of the spontaneous emission

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Chinese Physics B 2021年第2期30卷 520-528页

作者： sha-sha wen Meng Tian Hong Yang Su-Jun Xie Xiao-Yun Wang Yun Li Jie Liu Jin-Zhang Peng Ke Deng He-Ping Zhao Yong-Gang Huang College of Physics Mechanical and Electrical Engineering Jishou UniversityJishou 416000China

The spontaneous emission rate of a two-level quantum emitter(QE)near a gold nanorod is numerically *** different optical response models for the free-electron gas are adopted,including the classical Drude local response approximation,the nonlocal hydrodynamic model,and the generalized nonlocal optical response *** optical response leads to a blueshift and a reduction in the enhancement of the spontaneous emission *** all the three models,the resonance frequency is largely determined by the aspect ratio(the ratio of the nanorod length to the radius)and increases sharply with decreasing aspect *** nanorod with a fixed length,it is found that the larger the radius is,the higher the resonance frequency is,and the smaller the enhancement ***,if the length of the nanorod increases,the peak frequency falls sharply,while the spontaneous emission enhancement grows *** nanorod with a fixed aspect ratio,the peak frequency decreases slowly with increasing nanorod *** nanorod shows smaller nonlocal *** a certain frequency,there is an optimal size to maximize the enhancement of the spontaneous emission *** order modes are more affected by the nonlocal smearing of the induced charges,leading to larger blueshift and greater reduction in the *** results should be significant for investigating the spontaneous emission rate of a QE around a gold nanorod.

关键词： spatially nonlocal response hydrodynamics spontaneous emission rate gold nanorod

Intraoperative thermostatic nursing and failure mode and effects analysis enhance gastrectomies’ care quality

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World Journal of Gastrointestinal Surgery 2024年第12期16卷 3764-3771页

作者： Xian-Yong Wang Yi-Lei Zhao sha-sha wen Xiao-Yu Song Lu Mo Zhi-Wei Xiao Operating Room Affiliated Hospital of Southwest Medical UniversityLuzhou 646000Sichuan ProvinceChina Department of Psychosomatic Medicine Affiliated Hospital of Southwest Medical UniversityLuzhou 646000Sichuan ProvinceChina

BACKGROUND Utilizing failure mode and effects analysis(FMEA)in operating room nursing provides valuable insights for the care of patients undergoing radical gastric cancer *** To evaluate the impact of FMEA on the risk of adverse events and nursing-care quality in patients undergoing radical *** Among 230 patients receiving radical cancer surgery between May 2019 and May 2024,115 were assigned to a control group that received standard intraoperative thermoregulation,while the observation group benefited from FMEA-modeled operating room *** indicators,stress responses,postoperative gastroin-testinal function recovery,nursing quality,and the incidence of adverse events were compared between the two *** Significant differences were observed in bed and hospital stay durations between the groups(P0.05).Stress scores improved in both groups post-nursing(P<0.05),with the observation group showing lower stress scores than the control group(P<0.05).Gastrointestinal function recovery and nursing quality scores also differed significantly(P<0.05).Additionally,the incidence of adverse events such as stress injuries and surgical infections varied notably between the groups(P<0.05).CONCLUSION Incorporating FMEA into operating room nursing significantly enhances patient care by improving safety,expediting recovery,and reducing healthcare-associated risks.

关键词： Constant temperature nursing Failure mode and effects analysis model Operating room nursing Radical gastric cancer Nursing quality

Nonlinear Extrapolation Estimates of π

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Acta Mathematicae Applicatae Sinica 2024年第1期40卷 91-108页

作者： wen-qing Xu sha-sha Wang Da-chuan Xu Beijing Institute for Scientific and Engineering Computing Beijing University of TechnologyBeijing100124China Department of Mathematics and Statistics California State UniversityLong BeachCalifornia90840USA Department of Mathematics and Physics Shijiazhuang Tiedao UniversityShijiazhuang050043China

The classical Archimedean approximation of π uses the semiperimeter or area of regular polygons inscribed in or circumscribed about a unit circle in R~2 and it is well-known that by using linear combinations of these basic estimates,modern extrapolation techniques can greatly speed up the approximation ***,when n vertices are randomly selected on the circle,the semiperimeter and area of the corresponding random inscribed and circumscribing polygons are known to converge to π almost surely as n→∞,and by further applying extrapolation processes,faster convergence rates can also be achieved through similar linear combinations of the semiperimeter and area of these random *** this paper,we further develop nonlinear extrapolation methods for approximating π through certain nonlinear functions of the semiperimeter and area of such *** focus on two types of extrapolation estimates of the forms χ_n=S_n~αA_n~β and Y_n(p)=(αS_n~p+βA_n~p)~(1/p) where α+β=1,p≠0,and Sn and An respectively represents the semiperimeter and area of a random n-gon inscribed in the unit circle in R~2,and Xn may be viewed as the limit of Y_n(p) when p→*** deriving probabilistic asymptotic expansions with carefully controlled error estimates for Xn and Y_n(p),we show that the choice α=4/3,β=-1/3 minimizes the approximation error in both cases,and their distributions are also asymptotically normal.

关键词： Archimedean polygons random polygons approximations ofπ extrapolation processes asymptotic convergence

Microstructure and oxidation behavior of carbon fiber reinforced SiC composite（C_f/SiC） with Mo–57Si–10B oxidation protection coating

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Progress in Natural Science:Materials International 2022年第1期32卷 43-53页

作者： Sihan wen Ying Wang Jiangbo sha School of Materials Science and Engineering Beijing University of Aeronautics and Astronautics Key Laboratory of Aerospace Materials and Performance(Ministry of Education) Aerospace Research Institute of Materials & Processing Technology

Mo–57Si–10B（at.%） coating was prepared by the spark plasma sintering（SPS） technique on a 2D woven Cf/Si C composite, and the oxidation behavior of the bare and the coated Cf/SiC samples at 1300°C were *** coating was composed of a fine MoSi2/Mo B/SiO2/Mo2B5out layer and the inner SiO2interface layer. The mass gain percentage was approximately 0.25% after oxidation at 1300°C for 100 h. The coated Cf/Si C substrate was effectively protected, owing to the rapid formation of the dense and protective borosilicate layer on the coating, the excellent microstructure stability of the coating and the inner SiO2interface layer.

关键词： Ceramic-matrix composites High-temperature properties Electron microscopy Microstructures Interface

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基于层次分析法的朱砂根品系观赏价值评价

宁德师范学院学报（自然科学版） 2017年第3期29卷 251-258页

作者：陈俊晖骆亮刘梓富吴沙沙翟俊文彭东辉福建农林大学园林学院福建福州350002 武平林业局福建龙岩364300

朱砂根(Ardisia crenata)是畅销的年宵观果花卉.近年出现较多具有优良性状的品系,丰富了朱砂根的观赏类型,但由于缺乏评价的体系,造成市场上产品良莠不齐.本研究运用层次分析法,从树形、叶、果实和养护难度4个方面,采用株型、叶形、果... 详细信息

朱砂根(Ardisia crenata)是畅销的年宵观果花卉.近年出现较多具有优良性状的品系,丰富了朱砂根的观赏类型,但由于缺乏评价的体系,造成市场上产品良莠不齐.本研究运用层次分析法,从树形、叶、果实和养护难度4个方面,采用株型、叶形、果覆盖度、果穗数、果径、果形、管理难易等19个指标构建了朱砂根观赏价值评价模型,并使用评价标准对13个朱砂根品系进行评价.结果表明:13个朱砂根品系中,在Ⅰ级和Ⅱ级的‘青叶红枝’‘金玉满堂’‘红背青叶’‘迷你富贵’‘闽侯富贵’‘亮叶富贵’综合得分>6.8分,具备较高的观赏价值.

关键词：朱砂根观赏价值层次分析法

Transarterial chemoembolization combined with radiofrequency ablation in the treatment of large hepatocellular carcinoma with stage C

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World Journal of Clinical Cases 2022年第33期10卷 12156-12163页

作者： sha-sha Sun wen-Dong Li Jing-Long Chen Department of Oncology Capital Medical University Affiliated Beijing Ditan HospitalBeijing 100015China

BACKGROUND The combination therapy of transarterial chemoembolization and radiofrequency ablation(TACE-RFA)shows promising efficacy in large hepatocellular carcinoma(HCC).Data on the clinical efficacy and safety of TACE-RFA for large HCC with barcelona clinic liver cancer(BCLC)stage C are lacking in *** To determine the safety and efficacy of TACE-RFA for large,advanced *** Patients of HCC with BCLC stage C who were treated with TACE-RFA or TACE alone at our institute from August 2008 to January 2017 were retrospectively *** complications were *** associations between overall survival(OS)and treatment method were *** Data were collected from 102 HCC *** them,64 underwent TACERFA and 38 underwent *** combination of TACE and RFA was *** complications were *** median OS in the TACE-RFA group was significantly longer than that in the TACE group(8.0 mo vs 4.0 mo,P=0.000).The 6-,12-and 24-mo survival rates of the combination group were 68.8%,34.4%,and 10.9%,respectively,while those of the TACE group were 36.8%,7.9%,and 0%(P<0.05).CONCLUSION TACE-RFA has an advantage over TACE alone in improving OS in large HCC patients with BCLC stage C.

关键词： Large advanced hepatocellular carcinoma Transarterial chemoembolization Radiofrequency ablation Overall survival Combination therapy

Modeling the implementation of NDCs and the scenarios below 2°C for the Belt and Road countries

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Ecosystem Health and Sustainability 2020年第1期6卷 491-501,490页

作者： Chai Qimin Fu sha wen Xinyuan National Center for Climate Change Strategy and International Cooperation BeijingChina Research Center for Contemporary Management Tsinghua UniversityBeijingChina Research Center for Green Finance and Sustainable Development University of International Business and EconomicsBeijingChina

In order to understand better on medium-and long-term climate change issues in international cooperation of the Belt and Road Initiative(BRI),this paper is meant to assess the implementation of National Determined Contributions(NDCs)of the BRI countries and the emission constraints under the Paris Agreement to hold the increase in the global average temperature to well below 2℃ above pre-industrial levels,based on the Belt and Road Integrated Assessment Model(BRIAM)and the best available *** results show that the BRI countries are expected to collectively reduce about 3.2 billion tons of CO_(2)emissions with the implementation of their NDCs by *** order to achieve the global goal of 2℃,without appropriate mitigation burden sharing and enhanced climate finance support,the BRI countries will face big challenges to bridge the emission *** investment in clean energy and related new infrastructures in BRI will rise sharply to above US$100 trillion by the end of this century accordingly with the increase in carbon price,which will also eventually have a significant impact on the price of electricity and oversea freight transport in a connecting world.

关键词： Belt and Road Initiative national determined contributions paris agreement 2 degree celsius integrated assessment model

Synthesis and Properties of Novel Luminescent Compounds Containing Triphenylamine and Bipyridine Units

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Chemical Research in Chinese Universities 2012年第2期28卷 313-318页

作者： LU Hai-jun LI Xiang-gao WANG Shi-rong GAO wen-zheng WANG sha-sha School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072P.R.China College of Chemical and Pharmaceutical Engineering Hebei University of Science and TechnologyShijiazhuang 050018P.R.China

Blue luminescent compounds T1―T4 containing triphenylamine donors,bipyridine acceptors and olefinic linkers were synthesized and characterized by 1 H NMR,13 C NMR and high resolution mass spectrometry（HRMS）.Four compounds T1―T4 exhibit excellent solubility in common solvents and good film forming *** chemical calculations show that compounds T1―T4 have asymmetric linear structures and the proper highest occupied molecular orbital（HOMO） *** UV-Vis absorption and fluorescence emission spectra of the four compounds in dilute chloroform solutions and on the solid films were *** reveals that compounds T1―T4 exhibit similar spectral behavior,suggesting that these compounds can form amorphous state in solid *** calculated absorption and emission spectra of compounds T1―T4 are in good agreement with experimentally determined *** T1―T4 have absolute fluorescence quantum yield above 17% in dilute chloroform *** compounds possess high glass-transition temperature（T g） exceeding 97 ℃ and the maximum T g is 155.28 ℃ for compound *** voltammetry measurements show that these compounds have proper HOMO levels in a range of-5.01―-5.13 eV for hole *** properties of compounds T1―T4 indicate that these compounds are candidates for the application in organic light-emitting devices（OLEDs） as hole-transporting materials（HTMs）.

关键词： Luminescent compound Triphenylamine Bipyridine Hole-transporting material

Multimodal therapy in the management of primary orbital mesenchymal chondrosarcoma

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International Journal of Ophthalmology(English edition) 2022年第2期15卷 306-311页

作者： Yun Zhao Jing-wen Hui sha-sha Yu Jin-Yong Lin Hong Zhao Department of Ocular Plastic&Orbital Disease Tianjin Eye HospitalTianjin 300020China Clinical College of Ophthalmology Tianjin Medical UniversityNankai University Affiliated Eye HospitalTianjin 300020China Tianjin Key Laboratory of Ophthalmology and Visual Science Tianjin 300020China Tianjin Eye Institute Tianjin 300020China

AIM:To evaluate the ophthalmic manifestations,radiographic features,and prognosis of Chinese patients with primary orbital mesenchymal chondrosarcoma(MCS).METHODS:The study included 6 cases with primary orbital MCS treated at Tianjin Eye Hospital from January 2009 to December *** ophthalmic manifestations,radiographic features,diagnosis,pathology,therapeutic regimens,and prognosis were retrospectively ***:Six patitents with primary orbital MCS were *** mean age at the first visit was 33y(range,25-42y).All six patients displayed manifestations of exophthalmos,diplopia,limitation of eye displacement,upper eyelid oedema,decreased visual acuity and *** mean disease history and range were 5 and 2-8mo,*** tumors were located in the superonasal extraconal compartment(2/6,33.3%),intraconal compartment(2/6,33.3%),and bitemporal extraconal compartment(2/6,33.3%),*** features were a well-defined,orbital mass with calcification and ossification on computed tomography(CT),and marked heterogenous enhancement on dynamic magnetic resonance imaging(MRI).Five patients were treated with tumor resection and one patient received orbital *** patients in the cohort received postoperative radiation therapy,two patients received chemotherapy,and one patient did not receive postoperative adjuvant therapy because he *** histopathologic classification revealed a tumour composed of a mixture of mature chondroid tissue surrounded by small,round,and undifferentiated mesenchymal *** revealed Bcl-2,vimetin,CD99,and S-100 were expressed were *** surgeries,two patients have developed a local *** median recurrence time of 58 mo(52-64 mo).One patient had distant recurrence included the lungs occurred 52mo after the initial ***:The possibilty of orbital MCS need to be considered when a painless,slowly growing orbital mass with calcification and os

关键词： orbital mesenchymal chondrosarcoma local recurrence metastasis ophthalmic manifestations radiographic features pathological diagnosis