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| 1 | Effects of different plantation types on soil properties after vegetation restoration in an alpine sandy land on the Tibetan Plateau, China显示文摘Large areas of Artemisia ordosica Krasch., Caragana korshinskii Kom., and Caragana intermedia Kuang and H. C. Fu plantations were established on moving sand dunes in the Gonghe Basin(northeastern Tibetan Plateau) for vegetation restoration. Elevating our understanding of the changes in soil characteristics after the establishment of different plantation types can be useful in the context of combating desertification. To assess the effects of these plantation types on the restoration of sandy land, we measured soil physical-chemical properties at four depths(0–5, 5–10, 10–20, and 20–50 cm) in each of the three plantation types and also in non-vegetated moving sand dunes(as control sites). Generally, the establishment of A. ordosica, C. korshinskii and C. intermedia plantations on sand dunes has greatly ameliorated soil quality in the Gonghe Basin. Specifically, relative to the moving sand dunes, shrub plantation has increased the silt and clay contents, total porosity and water holding capacity, soil organic matter, total nitrogen, total phosphorus and total potassium contents. The calculated soil quality index suggested that in the Gonghe Basin, C. intermedia is the best choice for soil amelioration. In all the three plantation types, soil amelioration mainly occurred in the shallow depths. | LI Qingxue JIA Zhiqing LIU Tao FENG Lili HE Lingxianzi | 2017 | Journal of Arid Land2017，9，2： | 16 |
| 2 | Seismic fragility of flexible pipeline connections in a base isolated medical building显示文摘Flexible pipelines are often used to connect hard pipes from a foundation to a superstructure to accommodate large deformation in the base isolation layer during an earthquake. Although Chinese seismic design guidelines suggest several confi gurations, they are diff erent from the designs that have been proven in practice, e.g., Japanese styles, and extensive experimental investigation into their seismic performance is required. Three types of seals, rubber-, metal- and asbestinebased, were tested quasi-statically with infi lled pressurized water at 2.5 MPa. The asbestine-based seal leaked at a smaller deformation than the other two types of seals. Based on the test results, three damage states were defi ned and the deformation capacity was estimated. To evaluate their performance, a three-dimensional model of a base-isolated medical building was developed using OpenSees, with the fl exible pipelines simulated by a mechanical model calibrated from the experimental data. A probabilistic seismic demand model and the fragility function of the fl exible pipelines were then developed to evaluate the seismic performance. | Shang Qingxue Wang Tao Li Jichao | 2019 | Earthquake Engineering and Engineering Vibration2019，18，4： | 4 |
| 3 | Seismic force demands on acceleration-sensitive nonstructural components:a state-of-the-art review显示文摘Nonstructural components(NSCs)are parts,elements,and subsystems that are not part of the primary loadbearing system of building structures but are subject to seismic loading.Damage to NSCs may disrupt the functionality of buildings and result in significant economic losses,injuries,and casualties.In past decades,extensive studies have been conducted on the seismic performance and seismic design methods of NSCs.As the input for the seismic design of NSCs,floor response spectra(FRS)have attracted the attention of researchers worldwide.This paper presents a state-of-the-art review of FRS.Different methods for generating FRS are summarized and compared with those in current seismic design codes.A detailed review of the parameters influencing the FRS is presented.These parameters include the characteristics of ground motion excitation,supporting building and NSCs.The floor acceleration response and the FRS obtained from experimental studies and field observations during earthquakes are also discussed.Three RC frames are used in a case study to compare the peak floor acceleration(PFA)and FRS calculated from time history analyses(THA)with that generated using current seismic design codes and different methods in the literature.Major knowledge gaps are identified,including uncertainties associated with developing FRS,FRS generation methods for different types of buildings,the need for comprehensive studies on absolute acceleration,relative velocity,and relative displacement FRS,and the calibration of FRS by field observations during earthquakes. | Wang Tao Shang Qingxue Li Jichao | 2021 | Earthquake Engineering and Engineering Vibration2021，20，1： | 3 |
| 4 | Recent advances for the production of hydrocarbon biofuel via deoxygenation progress显示文摘The current world energy crisis and increasing environmental concerns over global climate change from combusting fossil fuel are driving researchers into a new route to produce fuels via sustainable resource to meet the demands of human. In recent years, deoxygenation as an alternative method has been applied in the production of hydrocarbon fuels, particularly via the deoxygenation of fatty acids and triglycerides from seed oils and fats, producing hydrocarbon fuels entirely fungible with fossil fuels. The deoxygenation of biobased feedstock to fuel-like hydrocarbons is critically reviewed in this article. The review mainly discusses the use of feedstock, innovation of catalysts, and the reaction mechanism involved in the production of hydrocarbon fuels via deoxygenation progress. | Dan Li Hui Xin Xiangzhe Du Xiaolei Hao Qingxue Liu Changwei Hu | 2015 | Science Bulletin2015，60，24： | 2 |
| 5 | Experimental Investigation on Micro Deep Drawing of Stainless Steel Foils with Different Microstructural Characteristics显示文摘In the present work,austenitic stainless steel(ASS)304 foils with a thickness of 50μm were first annealed at temperatures ranging from 700 to 1100℃for 1 h to obtain different microstructural characteristics.Then the effects of microstructural characteristics on the formability of ASS 304 foils and the quality of drawn cups using micro deep drawing(MDD)were studied,and the mechanism involved was discussed.The results show that the as-received ASS 304 foil has a poor formability and cannot be used to form a cup using MDD.Serious wrinkling problem occurs on the drawn cup,and the height profile distribution on the mouth and the symmetry of the drawn cup is quite non-uniform when the annealing temperature is 700℃.At annealing temperatures of 900 and 950℃,the drawn cups are both characterized with very few wrinkles,and the distribution of height profile,symmetry and mouth thickness are uniform on the mouths of the drawn cups.The wrinkling becomes increasingly significant with a further increase of annealing temperature from 950 to 1100℃.The optimal annealing temperatures obtained in this study are 900 and 950℃for reducing the generation of wrinkling,and therefore improving the quality of drawn cups.With non-optimized microstructure,the distribution of the compressive stress in the circumferential direction of the drawn foils becomes inhomogeneous,which is thought to be the cause of the occurrence of localized deformation till wrinkling during MDD. | Jingwei Zhao Tao Wang Fanghui Jia Zhou Li Cunlong Zhou Qingxue Huang Zhengyi Jiang | 2021 | Chinese Journal of Mechanical Engineering2021，34，2： | 2 |
| 6 | Integrated microdevice with a windmill-like hole array for the clog-free,efficient,and self-mixing enrichment of circulating tumor cells显示文摘Circulating tumor cells(CTCs)have tremendous potential to indicate disease progression and monitor therapeutic response using minimally invasive approaches.Considering the limitations of affinity strategies based on their cost,effectiveness,and simplicity,size-based enrichment methods that involve low-cost,label-free,and relatively simple protocols have been further promoted.Nevertheless,the key challenges of these methods are clogging issues and cell aggregation,which reduce the recovery rates and purity.Inspired by the natural phenomenon that the airflow around a windmill is disturbed,in this study,a windmill-like hole array on the SU-8 membrane was designed to perturb the fluid such that cells in a fluid would be able to self-mix and that the pressure acting on cells or the membrane would be dispersed to allow a greater velocity.In addition,based on the advantages of fluid coatings,a lipid coating was used to modify the membrane surface to prevent cell aggregation and clogging of the holes.Under the optimal conditions,recovery rates of 93%and 90%were found for A549 and HeLa cells in a clinical simulation test of our platform with a CTC concentration of 20-100 cells per milliliter of blood.The white blood cell(WBC)depletion rate was 98.7%(n=15),and the CTC detection limit was less than 10 cells per milliliter of blood(n=6).Moreover,compared with conventional membrane filtration,the advantages of the proposed device for the rapid(2 mL/min)and efficient enrichment of CTCs without clogging were shown both experimentally and theoretically.Due to its advantages in the efficient,rapid,uniform,and clog-free enrichment of CTCs,our platform offers great potential for metastatic detection and therapy analyses. | Hao Li Jinze Li Zhiqi Zhang Zhen Guo Changsong Zhang Zixu Wang Qiuquan Guo Chao Li Chuanyu Li Jia Yao Anran Zheng Jingyi Xu Qingxue Gao Wei Zhang Lianqun Zhou | 2022 | Microsystems & Nanoengineering2022，8，1： | 1 |
| 7 | Theeffects of hydrogen on KOH activation of petroleum coke显示文摘 | XIAO Ronglin XU Shaoping LI Qingxue | 2012 | Journal of Analytical and Applied Pyrolysis2012，96，3： | 1 |
| 8 | Erratum to: Recent advances for the production of hydrocarbon biofuel via deoxygenation progress显示文摘1 Erratum to:Sci.Bull.(2015)60(24):2096–2106DOI 10.1007/s11434-015-0971-0In the original publication of this paper,the pathways proposed for the deoxygenation of a fatty acid ester into hydrocarbons in Scheme 2 was incorrect.The corrected pathways appear in this erratum(Scheme 2). | Dan Li Hui Xin Xiangzhe Du Xiaolei Hao Qingxue Liu Changwei Hu | 2016 | Science Bulletin2016，61，3： | 1 |
| 9 | Femtosecond laser fabrication of nanograting-based distributed fiber sensors for extreme environmental applications显示文摘The femtosecond laser has emerged as a powerful tool for micro-and nanoscale device fabrication. Through nonlinear ionization processes, nanometer-sized material modifications can be inscribed in transparent materials for device fabrication. This paper describes femtosecond precision inscription of nanograting in silica fiber cores to form both distributed and point fiber sensors for sensing applications in extreme environmental conditions. Through the use of scanning electron microscope imaging and laser processing optimization,high-temperature stable, Type II femtosecond laser modifications were continuously inscribed,point by point, with only an insertion loss at 1 d B m~(-1) or 0.001 d B per point sensor device.High-temperature performance of fiber sensors was tested at 1000℃, which showed a temperature fluctuation of ±5.5℃ over 5 days. The low laser-induced insertion loss in optical fibers enabled the fabrication of a 1.4 m, radiation-resilient distributed fiber sensor. The in-pile testing of the distributed fiber sensor further showed that fiber sensors can execute stable and distributed temperature measurements in extreme radiation environments. Overall, this paper demonstrates that femtosecond-laser-fabricated fiber sensors are suitable measurement devices for applications in extreme environments. | Mohan Wang Kehao Zhao Jingyu Wu Yuqi Li Yang Yang Sheng Huang Jieru Zhao Thomas Tweedle David Carpenter Guiqiu Zheng Qingxu Yu Kevin P Chen | 2021 | International Journal of Extreme Manufacturing2021，3，2： | 1 |
| 10 | Culture of microalgae Chlamydomonas reinhardtii in wastewater for biomass feedstock production显示文摘 | Kong Qingxue Li Ling Martinez Blanca | 2010 | Applied Biochemistry and Biotechnology2010，160，1： | 1 |
| 11 | The dynamics of an impulsive delay predator-prey model with variable coefficients显示文摘 | Meng Xinzhu Chen Lansun Li Qingxue | 2008 | Applied Mathematics and Computation2008，198，1： | 1 |
| 12 | Modelling and assessment of water quality indicators in a semi-enclosed shallow bay显示文摘 | TAO Jianhua LI Qingxue FALCONER R A | 2001 | Journal of Hydraulic Research2001，39，6： | 1 |
| 13 | Astrocyte elevated gene‐1 interacts with β‐catenin and increases migration and invasion of colorectal carcinoma显示文摘 | Fenfen Zhang Qingxu Yang Fengjiao Meng Huijuan Shi Hui Li Yingjie Liang Anjia Han | 2013 | Carcinog2013，，8： | 1 |
| 14 | Increased expression of calcium‐sensing receptors induced by ox‐LDL amplifies apoptosis of cardiomyocytes during simulated ischaemia–reperfusion显示文摘 | JinGuo Hong‐ZhuLi Wei‐HuaZhang Lu‐ChuanWang Li‐NaWang LiZhang Guang‐WeiLi Hong‐XiaLi Bao‐FengYang LingyunWu RuiWang Chang‐QingXu | 2010 | Clinical and Experimental Pharmacology and Physiology2010，，3： | 1 |
| 15 | Electronic, optical, and charge transport properties of A-π-A electron acceptors for organic solar cells: Impact of anti-aromatic π structures显示文摘Organic solar cells based on acceptor-p-acceptor(A-π-A) electron acceptors have attracted intensive attention due to their increasing and record power conversion efficiencies. To date, almost all of the reported A-π-A electron acceptors are based on aromatic p structures. Here, we have investigated the impact of anti-aromatization of the p-bridges on the optoelectronic properties of A-π-A electron acceptors by(time-dependent) density functional theory. Our calculations show that besides the frontier molecular orbitals corresponding to the aromatic p-bridge based acceptors('aromatic' acceptors),additional and unique occupied and unoccupied frontier orbitals are found for the acceptors based on the anti-aromatic p-bridges('anti-aromatic' acceptors). Moreover, by tuning isomeric structures of the p-bridges(e.g., fusion orientations or linking positions of thiophene moieties), the optical excitation energies for the transition between the additional occupied and unoccupied levels turn to be close to or substantially lower with respect to those for the transition between the 'aromatic' frontier orbitals. The optical absorption of the 'anti-aromatic' acceptors is thus either stronger or broader than the 'aromatic'acceptors. Finally, the reorganization energies for electron transport are tunable and dependent on the p-bridge structures. These results indicate a great potential of 'anti-aromatic' electron acceptors in organic photovoltaics. | Yan Zeng Ruihong Duan Yuan Guo Guangchao Han Qingxu Li Yuanping Yi | 2019 | Chinese Chemical Letters2019，30，1： | 1 |
| 16 | Increased expression of calcium‐sensing receptors induced by ox‐LDL amplifies apoptosis of cardiomyocytes during simulated ischaemia–reperfusion显示文摘 | JinGuo Hong‐ZhuLi Wei‐HuaZhang Lu‐ChuanWang Li‐NaWang LiZhang Guang‐WeiLi Hong‐XiaLi Bao‐FengYang LingyunWu RuiWang Chang‐QingXu | 2010 | Clinical and Experimental Pharmacology and Physiology2010，，3： | 1 |
| 17 | The effects of hydrogen on KOH activation of petroleum coke 显示文摘 | XIAO Ronglin XU Shaoping LI Qingxue et ul | 2012 | Journal of Analytical and Applied Pyrolysis2012，96，： | 1 |
| 18 | Effect of Mechanical Surface Treatment on the Bonding Mechanism and Properties of Cold‑Rolled Cu/Al Clad Plate显示文摘In the case of valuable cold-rolled Cu/Al clad plates,billet surface treatment before rolling is a significant process that can affect the bonding efficiency and quality.While the current studies primarily focus on the influence of rolling parameters,insufficient attention has been paid to surface treatment.In this study,the effects of mechanical surface treatment on the bonding mechanism and bonding properties of cold-rolled Cu/Al clad plates were investigated.The results showed that different mechanical surface treatments have significant effects on the surface morphology,roughness,and residual stress.In addition,the effect of surface mechanical treatment on bonding quality was also observed to be critical.When the grinding direction was consistent with the rolling direction(RD),the bonding quality of the Cu/Al clad plates was significantly improved.After surface treatment along the RD for 20 s,the Cu/Al clad plates showed the highest shear strength(78 MPa),approximately four times as high as that of the unpolished samples.Simultaneously,the peel strength of this process was also significantly higher than that achieved via the other processes.Finally,on the basis of the surface morphology,roughness,and residual stress,the effect of surface treatment on the bonding mechanism and bonding properties of Cu/Al clad plates was analyzed.This study proposes a deeper understanding of the bonding behavior and bonding mechanism for cold rolled clad plates processed via mechanical surface treatment. | Jianchao Han Hui Niu Sha Li Zhongkai Ren Yi Jia Tao Wang A.I.Plokhikh Qingxue Huang | 2020 | Chinese Journal of Mechanical Engineering2020，33，5： | 1 |
| 19 | Ferroptosis and endoplasmic reticulum stress in ischemic stroke显示文摘Ferroptosis is a form of non-apoptotic programmed cell death,and its mechanisms mainly involve the accumulation of lipid peroxides,imbalance in the amino acid antioxidant system,and disordered iron metabolism.The primary organelle responsible for coordinating external challenges and internal cell demands is the endoplasmic reticulum,and the progression of inflammatory diseases can trigger endoplasmic reticulum stress.Evidence has suggested that ferroptosis may share pathways or interact with endoplasmic reticulum stress in many diseases and plays a role in cell survival.Ferroptosis and endoplasmic reticulum stress may occur after ischemic stroke.However,there are few reports on the interactions of ferroptosis and endoplasmic reticulum stress with ischemic stroke.This review summarized the recent research on the relationships between ferroptosis and endoplasmic reticulum stress and ischemic stroke,aiming to provide a reference for developing treatments for ischemic stroke. | Yina Li Mingyang Li Shi Feng Qingxue Xu Xu Zhang Xiaoxing Xiong Lijuan Gu | 2024 | Neural Regeneration Research2024，19，3： | 1 |
| 20 | Analysis of contact problem using improved fast multipole BEM with variable element length theory显示文摘 | Gui Hailian Li Qiang Huang Qingxue | 2013 | Journal of Marine Science and Technology2013，21，1： | 1 |
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