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Rare Metals 2019年第12期38卷 1178-1186页

作者： Jian-Chao Wang hong-Sheng Luo Ming-Hai Zhang Xi-hong Zu Jie Zhang Yu-Xin gu guo-Bin Yi School of Chemical Engineering and Light Industry Guangdong University of TechnologyGuangzhou 510006China guangdong Provincial Key Laboratory of Advanced Coatings Research and Development China National Electric Apparatus Research Institute Co.Ltd.Guangzhou 510300China

A new substrate,aligned Ag nanowires decorated with silver nanoparticle composite structure(AgNWs@AgNPs),was fabricated to investigate metalenhanced fluorescence(MEF) and its *** new composite structure was fabricated via a three-phase interface assembly method followed by SnCl2 sensitization and AgNO3 reduction *** size and distribution of the nanoparticles on silver nanowires increased with the sensitization and reduction *** formation of AgNPs on the surfaces of AgNWs was confirmed by multiple characterization methods including scanning electron microscopy(SEM),transmission electron microscope(TEM),atomic force microscopy(AFM) and X-ray diffraction(XRD).The results show that the fluorescence intensity of the poly(3-hexylthiophene)(P3HT) on the composite structure was greatly enhanced compared with that on bare glass substrate,and the intensity increased with the increase in particle sizes and *** mechanism was basedo n the increase in excitation rate and the radiation decay *** new type of substrate could serve as a good and efficient MEF substrate for high-performance fluorescence-based devices.

关键词： Fluorescence enhancement Aligned Ag nanowires Self-assembly Mechanism

A case study on behaviors of composite soil nailed wall with bored piles in a deep excavation

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Journal of Central South University 2013年第7期20卷 2017-2024页

作者： ZHU Feng-bin MIAO Lin-chang gu Huan-da CHENG Yue-hong Institute of Geotechnical Engineering Southeast University Nanjing 210096 China School of Civil Engineering Suzhou University of Science and Technology Suzhou 215011 China Sttzhou Erjian Construction Group Co. Ltd Suzhou 215131 China

A complete case of a deep excavation was explored. According to the practical working conditions, a 3D non-linear finite element procedure is used to simulate a deep excavation supported by the composite soil nailed wall with bored piles in soft soil. The modified cam clay model is employed as the constitutive relationship of the soil in the numerical simulation. Results from the numerical analysis are fitted well with the field data, which indicate that the research approach used is reliable. Based on the field data and numerical results of the deep excavation supported by four different patterns of the composite soil nailed wall, the significant corner effect is founded in the 3D deep excavation. If bored piles or soil anchors are considered in the composite soil nailed wall, they are beneficial to decreasing deformations and internal forces of bored piles, cement mixing piles, soil anchors, soil nailings and soil around the deep excavation. Besides, the effects due to bored piles are more significant than those deduced from soil anchors. All mentioned above prove that the composite soil nailed wall with bored piles is feasible in the deep excavation.

关键词： deep excavation 3D non-linear finite element bored pile composite soil nailed wall corner effect deformation internal force

Significance of achieving carbon neutrality by 2060 on China's energy transition pathway: A multi-model comparison analysis

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Advances in Climate Change Research 2023年第1期14卷 32-42页

作者： Ling-Si KONG Xian-Chun TAN Bai-He gu hong-Shuo YAN Institutes of Science and Development Chinese Academy of SciencesBeijing 100190China School of Public Policy and Management University of Chinese Academy of SciencesBeijing 100049China Center for Carbon Neutrality Strategy Institutes of Science and DevelopmentChinese Academy of SciencesBeijing 100190China

China has proposed to achieve carbon neutrality by *** previous studies have assessed net-zero emissions pathways in China,the diversity observed in these studies in terms of model construction and parameter setting has led to inconsistent conclusions on some key issues,such as energy *** study employs a multi-model comparison method to examine the significance of China's carbon neutrality target on its energy systems by assessing 67 carbon neutrality scenarios in China that are collected from the ADVANCE database,and identifying the differences between energy transition pathways under BEF60 scenarios(*** realising carbon neutrality by 2060)and AFT60 scenarios(*** realising carbon neutrality after 2060).Results show that China needs a larger deployment of low-carbon electricity,a higher electrification rate and more carbon sequestration amount under BEF60 scenarios than those under AFT60 ***,the magnitude of the difference between the two categories of scenarios varies significantly in terms of different outcome *** that present significant disparities include the deployment scale of solar power(increasing by 160%),the electrification rate of the building sector(increasing by 27%)and the carbon sequestration amount of biomass power with carbon capture and storage(increasing by 380%).In addition,this study selects six indicators to present the technological and economic characteristics of various energy systems of China at the point of net-zero *** the relationships between characteristics,this research identifies the common features among various net-zero energy systems.A great share of non-biomass renewable power generation is always associated with a relatively high per capita energy use,implying that high renewables penetration may relax restrictions on energy consumption,which should be addressed for China when making efforts to promote energy transition.

关键词： Carbon neutrality Multi-model comparison analysis Energy transition Technology option Common feature

MicroRNA-22 inhibits proliferation and promotes differentiation of satellite cells in porcine skeletal muscle

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Journal of Integrative Agriculture 2020年第1期19卷 225-233页

作者： hong Quyen Dang XU gu-li HOU Lian-jie XU Jian hong guang-liang Chingyuan Hu WANG Chong National Engineering Research Center for Breeding Swine Industry/guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding/College of Animal Science South China Agricultural UniversityGuangzhou 510642P.R.China Bac Giang Agricultural and Forestry University Bac Giang 26000Viet Nam Department of Human Nutrition Food and Animal SciencesCollege of Tropical Agriculture and Human ResourcesUniversity of Hawaii at ManoaHonoluluHI 96822USA

Pig is an important economic animal in China. Improving meat quality and meat productivity is a long time issue in animal genetic breeding. Micro RNAs(mi RNAs) are short non-coding RNAs that participate in various biological processes, such as muscle development and embryogenesis. mi R-22 differentially expresses in embryonic and adult skeletal muscle. However, the underlying mechanism is unclear. In this study, we investigated mi R-22 function in proliferation and differentiation of porcine satellite cells(PSCs) in skeletal muscle. Our data show that mi R-22 expressed in both proliferation and differentiated PSCs and is significantly upregulated(Pgulation(Pgulation(P<0.05) of P21. Conversely, over-expression of mi R-22 resulted in opposite results. Differentiation of PSCs was significantly suppressed(P<0.05), evidenced by two major myogenic markers: myogenin(Myo G) and myosin heavy chain(My HC), after transfecting the PSCs with mi R-22 inhibitor. Opposite results were demonstrated in the other way around by transfection with mi R-22 mimics. In conclusion, the data from this study indicated that mi R-22 inhibited the PSCs proliferation but promoted their differentiation.

关键词： miR-22 skeletal muscle porcine satellite cells proliferation differentiation

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锗锡浓度对硅锗锡合金性能影响的研究

原子与分子物理学报 2025年第5期42卷 163-174页

作者：顾永顺温淑敏内蒙古工业大学理学院呼和浩特010051

由于SiGeSn合金材料其具有高的载流子迁移率和较长的载流子寿命,并且其结构具有较高的热力学稳定性,所以在光电子领域中是一种具有非常大应用潜力的半导体材料.本文采用密度泛函理论中的广义梯度近似GGA+U的方法,构建并计算了本征半导体... 详细信息

由于SiGeSn合金材料其具有高的载流子迁移率和较长的载流子寿命,并且其结构具有较高的热力学稳定性,所以在光电子领域中是一种具有非常大应用潜力的半导体材料.本文采用密度泛函理论中的广义梯度近似GGA+U的方法,构建并计算了本征半导体Si_(96)与五组掺杂模型Si_(92)Ge_(2)Sn_(2)、Si_(88)Ge_(4)Sn_(4)、Si_(84)Ge_(6)Sn_(6)、Si_(80)Ge_(8)Sn_(8)、Si_(76)Ge_(10)Sn_(10)的电子结构及光学性质.通过对计算结果的分析可知,Ge,Sn的加入使得Si材料的带隙宽度减小,并且发生了由间接带隙向直接带隙的转变;Ge,Sn浓度最高的SiGeSn合金的形成能相对较高,稳定性相较于Ge,Sn含量低的材料较差;随着Ge,Sn掺杂浓度的提高,电子态密度图显示出越来越明显的杂化现象,并且态密度的峰值主要有Si原子的s轨道提供;Ge,Sn浓度的提高还使得SiGeSn合金的吸收系数在可见光及近红外区域内增加、反射率在可见光及以上波段范围内提高、折射率变低、消光系数曲线向红外区域移动等光学性质变化,表明可以通过调节Ge,Sn浓度来获得合适的光学特性,这为SiGeSn半导体在红外区域光电材料和器件的应用上提供了研究方向.

关键词： SiGeSn 电子特性光学性质

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Modified treatment of knee osteoarthritis complicated with femoral varus deformity:A case report

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World Journal of Clinical Cases 2022年第6期10卷 1903-1908页

作者： Sheng-Ming Xu Wei Li De-bao Zhang Huang-Yi Bi gui-Shan gu Department of Orthopedic Surgery The First Hospital of Jilin UniversityChangchun 130021Jilin ProvinceChina

BACKGROUND Surgical treatment of knee osteoarthritis(KOA)complicated by extra-articular deformity has always been controversial regardless of whether it is simultaneous or *** total knee arthroplasty(TKA)combined with supracondylar osteotomy without plate for treatment of KOA complicated by femoral varus deformity has not been reported in the *** SUMMARY A 53-year-old Chinese woman complained of left knee pain for 6 years that worsened for 4 mo during her visit on April 3,2020,accompanied by instability in walking,which seriously affected quality of *** to her medical history and preoperative imaging,the patient was diagnosed with left KOA with varus *** used the angular center of rotation principle for osteotomy of the femur deformity and placed a poststabilized femur prosthesis into the knee *** the same time,a 13 mm×130 mm femur extension rod was used instead of a steel plate to fix the end of the femur osteotomy,reducing the possible complications caused by steel plate implantation and reducing the economic burden on *** operation successfully solved two major problems of KOA and varus deformity,and the clinical and imaging evaluation of postoperative followup were *** TKA and supracondylar femoral osteotomy can be used for simultaneous KOA treatment and deformity correction.

关键词： Knee osteoarthritis Varus deformity Same-stage Total knee arthroplasty Osteotomy Case report

Electrical and optical properties of ZnO:Al films with different hydrogen contents in sputtering gas

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Rare Metals 2015年第3期34卷 173-177页

作者： Fei Qu Teng Zhang hong-Wei gu Qing-Quan Qiu Fa-Zhu Ding Xing-Yu Peng hong-Yan Wang Applied Superconductors Key Laboratory Institute of Electrical EngineeringChinese Academy Sciences

Aluminum-doped zinc oxide （ZnO：AI） films were deposited by direct current magnetron sputtering in incorporating hydrogen in sputtering gas at room temper- ature. The influences of hydrogen content in sputtering gas on the structural, optical, and electrical properties of ZnO：A1 films were systematically investigated. It is found that hydrogen incorporated into ZnO lattice forms shallow donors in ZnO：A1 films and plays an important role in the properties of ZnO：A1 films. The electrical conductivity and infrared （IR） reflectance are improved due to the increase of electron carrier concentration, and the average trans- mittance decreases, which is ascribed to the strong scat- tering from the hydrogen incorporated and oxygen vacancies in ZnO：A1 films. In this study, the resistivity of 5.5 × 10-4 Ω.cm is obtained, the average transmittance of the wavelength in the range of 400-900 nm is almost 86 %, and the IR reflectance reaches 75 % at 2,500 nm, which is higher than that of reported TCO films. The band gap determined by optical absorption is a result of com- petition between Burstein-Moss effect and many-body perturbation effect. However, the hydrogen content in sputtering gas is above 10 %, and the optical band gap shift is independent of hydrogen content in sputtering gas.

关键词： ZnO:A1 thin films Hydrogen Electricalresistivity Transmittance IR reflectance

Solving the strong CP problem via aˉθ-characterized mirror symmetry

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Chinese Physics C 2024年第3期48卷 20-24页

作者：顾佩洪 School of Physics Jiulonghu CampusSoutheast UniversityNanjing 211189China

In the standard model QCD Lagrangian,a term of CP violating gluon density is theoretically expected to have a physical coefficientθ¯,which is typically on the order of ***,the upper bound on the electric dipole moment of the neutron enforces the value ofθ¯to be extremely *** significant discrepancy between theoretical expectations and experimental results in this context is widely recognized as the strong CP *** solve this puzzle in an appealing context of two Higgs doublets,we propose aθ¯-characterized mirror symmetry between two Higgs singlets with respective discrete *** our scenario,the parameterθ¯can completely disappear from the full Lagrangian after the standard model fermions take a proper phase rotation as well as the Higgs doublets and ***,all of new physics for solving the strong CP problem can be allowed near the TeV scale.

关键词： strong CP problem θ¯-characterized mirror symmetry two Higgs doublets

Preparation and reducing-responsive property of a novel functional polyurethane nanoemulsion

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Chinese Chemical Letters 2020年第1期31卷 292-294页

作者： He Qin hong Zhang Xiaoteng Zhou Danfei gu Lingxiao Li Chengyou Kan Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of Education of China Tsinghua University

As a kind of stimuli-responsive materials,the disulfide-containing material has received a tremendous amount of interest.A novel functional disulfide-containing waterborne polyurethane(DS-WPU)nanoemulsion was prepared via a one-step in situ phase inverse emulsification technique and its reducing-responsive prope rty was investigated using dithiothreitol as the *** showed that the DS-WPU nanoemulsion had a uniform particle size in nanoscale and a good film-forming characteristic,and the DS-WPU latex film exhibited great responsiveness along with a self-assembled behavior in the reducing environment to form WPU emulsion again,including a long-to-short process of the polymer chains.

关键词： Polyurethane Disulfide bond Nanoemulsion Reducing-responsiveness Self-assembly

Huaiqihuang Granules(槐杞黄颗粒)Reduce Proteinuria by Enhancing Nephrin Expression and Regulating Necrosis Factor κB Signaling Pathway in Adriamycin-Induced Nephropathy

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Chinese Journal of Integrative Medicine 2017年第4期23卷 279-287页

作者： LIU hong SUN Wei gu Liu-bao TU Yue YU Bing-yin HU Hao Department of Nephrology the Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210029China Graduate School Nanjing University of Chinese MedicineNanjing 210029China Center for Diabetes Care Education and ResearchJiangsu Province Institute of GeriatricsNanjing 210024China

Objective To investigate the effects of Huaiqihuang Granules (槐杞黄颗粒, HQH), a mixture of Chinese herbs including Trametes robiniophila Murr, Fructus Lycii and Polygonatum sibiricum, on adriamycininduced nephropathy (ADRN) in rats and its underlying mechanisms. Methods Rats with ADRN were divided into four groups: the sham group, the model group (distilled water), the low-dose HQH-treated (2 g/kg) group, and the high-dose HQH-treated (4 g/kg) group. Body weight and 24-h urinary protein (Upro) were checked every week. After 5-week intervention, at the end of the study, the rats were sacrificed and blood samples were collected for examination of biochemical parameters, including glomerular morphological makers, podocyte shape, cellular apoptosis, expressions of nephrin, inflammatory and apoptosis markers. Results HQH ameliorated the rat’s general status, proteinuria, renal morphological appearance and glomerulosclerosis. The decreased expression of nephrin in ADRN rats was increased by HQH, as well as the impaired podocyte foot process fusion. Cytosolic levels of p65 and inhibitor of nuclear factor κBα (IκBα) were decreased in ADRN rats, and recovered by the treatment of HQH. Consistently, the induced expression of tumor necrosis factor α (TNF-α), phosphorylated nuclear factor κB p65 (p-NFκB p65) and IκBα in ADRN were markedly suppressed by HQH. In addition, induction of Bax, cleaved caspase-3 and cytochrome C in ADRN rats were suppressed by HQH, indicating the amelioration of apoptosis. Conclusion HQH could ameliorate renal impairments in ADRN rats by increasing nephrin expression, inhibiting NF-κB signaling pathway via the down-regulation of p-NF-κB p65 and p-IκBα, and suppression of glomerular and tubular apoptosis.

关键词： adriamycin-induced nephropathy Huaiqihuang Granules nephrin nuclear transcription factor kappa B apoptosis Chinese medicine