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| 1 | Reservoir-induced landslides and risk control in Three Gorges Project on Yangtze River,China显示文摘The Three Gorges region in China was basically a geohazard-prone area prior to construction of the Three Gorges Reservoir(TGR).After construction of the TGR,the water level was raised from 70 m to 175 m above sea level(ASL).and annual reservoir regulation has caused a 30-m water level difference after impoundment of the TGR since September 2008.This paper first presents the spatiotemporal distribution of landslides in six periods of 175 m ASL trial impoundments from 2008 to 2014.The results show that the number of landslides sharply decreased from 273 at the initial stage to less than ten at the second stage of impoundment.Based on this,the reservoir-induced landslides in the TGR region can be roughly classified into five failure patterns,i.e.accumulation landslide,dip-slope landslide,reversed bedding landslide,rockfall,and karst breccia landslide.The accumulation landslides and dip-slope landslides account for more than 90%.Taking the Shuping accumulation landslide(a sliding mass volume of 20.7 × 10~6 m^3) in Zigui County and the Outang dip-slope landslide(a sliding mass volume of about 90 × 10~6 m^3) in Fengjie County as two typical cases,the mechanisms of reactivation of the two landslides are analyzed.The monitoring data and factor of safety(FOS) calculation show that the accumulation landslide is dominated by water level variation in the reservoir as most part of the mass body is under 175 m ASL,and the dip-slope landslide is controlled by the coupling effect of reservoir water level variation and precipitation as an extensive recharge area of rainfall from the rear and the front mass is below 175 m ASL.The characteristics of landslide-induced impulsive wave hazards after and before reservoir impoundment are studied,and the probability of occurrence of a landslide-induced impulsive wave hazard has increased in the reservoir region.Simulation results of the Ganjingzi landslide in Wushan County indicate the strong relationship between landslide-induced surge and water variation with high potential risk to shipping and residential areas.Regarding reservoir regulation in TGR when using a single index,i.e.1-d water level variation,water resources are not well utilized,and there is also potential risk of disasters since 2008.In addition,various indices such as 1-d.5-d,and 10-d water level variations are proposed for reservoir regulation.Finally,taking reservoir-induced landslides in June2015 for example,the feasibility of the optimizing indices of water level variations is verified. | Yueping Yin Bolin Huang Wenpei Wang Yunjie Wei Xiaohan Ma Fei Ma Changjun Zhao | 2016 | Journal of Rock Mechanics and Geotechnical Engineering2016，8，5： | 45 |
| 2 | Puerarin reduces apoptosis in rat hippocampal neurons cultured in high glucose medium by modulating the p38 mitogen activated protein kinase and c-Jun N-terminal kinase signaling pathways显示文摘OBJECTIVE: To investigate the neuroprotective effect of puerarin on rat hippocampal neurons cultured in high glucose medium, and to examine the role of the p38 mitogen activated protein kinase(p38 MAPK) and c-Jun N-terminal kinase(JNK) signaling pathways in this effect.METHODS: Primary cultures of hippocampal neurons were prepared from newborn Sprague Dawley rats. Neuron-specific enolase immunocytochemistry was used to identify neurons. The neurons were cultured with normal medium(control group) or with high-glucose medium(high-glucose group),and puerarin(puerarin group), a p38 MAPK inhibitor(SB239063; p38 MAPK inhibitor group) or a JNK inhibitor(SP600125; JNK inhibitor group) were added. After 72 h of treatment, terminal deoxynucleotidyl transferase-mediated d UTP nick end labeling assay was performed to detect apoptosis, and western blotting was used to assess protein levels of p-p38, p38, p-JNK and JNK.RESULTS: In the high-glucose group, the neuronal apoptosis rate and the p-p38/p38 and p-JNK/JNK ratios were higher than in the control group. The p38 MAPK and JNK inhibitors prevented this increase in the apoptosis rate. The apoptosis rates in the puerarin group, the p38 MAPK inhibitor group and the JNK inhibitor group were significantly decreased compared with the high-glucose group.Moreover, protein levels of p-p38 and p-JNK were significantly reduced, and the p-p38/p38 and p-JNK/JNK ratios were decreased in the puerarin group compared with the high-glucose group. In addition, compared with the high-glucose group,p-p38 levels and the p-p38/p38 ratio were reduced in the p38 MAPK inhibitor group, and p-JNK levels and the p-JNK/JNK ratio were decreased in the JNK inhibitor group.CONCLUSION: Puerarin attenuates neuronal apoptosis induced by high glucose by reducing the phosphorylation of p38 and JNK. | Xu Xiaohan Wang Jingbo Zhang Hong Tian Guoqing Liu Yuqin | 2016 | Journal of Traditional Chinese Medicine2016，36，1： | 13 |
| 3 | Inhibiting collagen Ⅰ production and tumor cell colonization in the lung via miR-29a-3p loading of exosome-/liposome-based nanovesicles显示文摘The lung is one of the most common sites for cancer metastasis.Collagens in the lung provide a permissive microenvironment that supports the colonization and outgrowth of disseminated tumor cells.Therefore,down-regulating the production of collagens may contribute to the inhibition of lung metastasis.It has been suggested that mi R-29 exhibits effective anti-fibrotic activity by negatively regulating the expression of collagens.Indeed,our clinical lung tumor data shows that mi R-29 a-3 p expression negatively correlates with collagen I expression in lung tumors and positively correlates with patients’outcomes.However,suitable carriers need to be selected to deliver this therapeutic mi RNA to the lungs.In this study,we found that the chemotherapy drug cisplatin facilitated mi R-29 a-3 p accumulation in the exosomes of lung tumor cells,and this type of exosomes exhibited a specific lung-targeting effect and promising collagen down-regulation.To scale up the preparation and simplify the delivery system,we designed a lung-targeting liposomal nanovesicle(by adjusting the molar ratio of DOTAP/cholesterol-mi RNAs to 4:1)to carry mi R-29 a-3 p and mimic the exosomes.This liposomal nanovesicle delivery system significantly down-regulated collagen I secretion by lung fibroblasts in vivo,thus alleviating the establishment of a pro-metastatic environment for circulating lung tumor cells. | Yan Yan Cancan Du Xixi Duan Xiaohan Yao Jiajia Wan Ziming Jiang Zhongyu Qin Wenqing Li Longze Pan Zhuoyu Gu Fazhan Wang Ming Wang Zhihai Qin | 2022 | Acta Pharmaceutica Sinica B2022，12，2： | 7 |
| 4 | DropConnect Regularization Method with Sparsity Constraint for Neural Networks显示文摘Drop Connect is a recently introduced algorithm to prevent the co-adaptation of feature detectors.Compared to Dropout, Drop Connect gains state-of-the-art results on several image recognition benchmarks. Motivated by the success of Drop Connect, we extended this algorithm with the ability of sparse feature selection. In Drop Connect algorithm, the dropping masks of weights are generated using Bernoulli gating variables that are independent of the weights and activations. We introduce a new strategy to generate masks depending on the outputs of previous layer. Using this method, neurons which are promising to produce sparser features will be assigned a bigger possibility to keep active in the forward and backward propagations. We then evaluate such sparsity constrained Drop Connect on MNIST and CIFAR datasets in comparison with ordinary Drop Connect and Dropout method. The results show that our new method improves the sparsity of features significantly, while not degrading the precision. | LIAN Zifeng JING Xiaojun WANG Xiaohan HUANG Hai TAN Youheng CUI Yuanhao | 2016 | Chinese Journal of Electronics2016，25，1： | 6 |
| 5 | Mapping the immune microenvironment for mandibular alveolar bone homeostasis at single-cell resolution显示文摘Alveolar bone is the thickened ridge of jaw bone that supports teeth.It is subject to constant occlusal force and pathogens invasion,and is therefore under active bone remodeling and immunomodulation.Alveolar bone holds a distinct niche from long bone considering their different developmental origin and postnatal remodeling pattern.However,a systematic explanation of alveolar bone at single-cell level is still lacking.Here,we construct a single-cell atlas of mouse mandibular alveolar bone through single-cell RNA sequencing(scRNA-seq).A more active immune microenvironment is identified in alveolar bone,with a higher proportion of mature immune cells than in long bone.Among all immune cell populations,the monocyte/macrophage subpopulation most actively interacts with mesenchymal stem cells(MSCs)subpopulation.Alveolar bone monocytes/macrophages express a higher level of Oncostatin M(Osm)compared to long bone,which promotes osteogenic differentiation and inhibits adipogenic differentiation of MSCs.In summary,our study reveals a unique immune microenvironment of alveolar bone,which may provide a more precise immune-modulatory target for therapeutic treatment of oral diseases. | Weimin Lin Qiwen Li Danting Zhang Xiaohan Zhang Xingying Qi Qian Wang Yaqian Chen Caojie Liu Hanwen Li Shiwen Zhang Yuan Wang Bin Shao Li Zhang Quan Yuan | 2021 | Bone Research2021，9，1： | 6 |
| 6 | Generatrix shape optimization of stiffened shells for low imperfection sensitivity显示文摘According to previous studies,stiffened shells with convex hyperbolic generatrix shape are less sensitive to imperfections.In this study,the effects of generatrix shape on the performances of elastic and plastic buckling in stiffened shells are investigated.Then,a more general description of generatrix shape is proposed,which can simply be expressed as a convex B-spline curve(controlled by four key points).An optimization framework of stiffened shells with a convex B-spline generatrix is established,with optimization objective being measured in terms of nominal collapse load,which can be expressed as a weighted sum of geometrically imperfect shells.The effectiveness of the proposed framework is demonstrated by a detailed comparison of the optimum designs for the B-spline and hyperbolic generatrix shapes.The decrease of imperfection sensitivity allows for a significant weight saving,which is particularly important in the development of future heavy-lift launch vehicles. | WANG Bo HAO Peng LI Gang WANG XiaoJun TANG XiaoHan LUAN Yu | 2014 | Science China(Technological Sciences)2014，57，10： | 6 |
| 7 | The dependences of osteocyte network on bone compartment, age, and disease显示文摘Osteocytes, the most abundant bone cells, form an interconnected network in the lacunar-canalicular pore system(LCS) buried within the mineralized matrix, which allows osteocytes to obtain nutrients from the blood supply, sense external mechanical signals, and communicate among themselves and with other cells on bone surfaces. In this study, we examined key features of the LCS network including the topological parameter and the detailed structure of individual connections and their variations in cortical and cancellous compartments, at different ages, and in two disease conditions with altered mechanosensing(perlecan deficiency and diabetes).LCS network showed both topological stability, in terms of conservation of connectivity among osteocyte lacunae(similar to the ‘‘nodes' ' in a computer network), and considerable variability the pericellular annular fluid gap surrounding lacunae and canaliculi(similar to the ‘‘bandwidth'' of individual links in a computer network). Age, in the range of our study(15–32 weeks), affected only the pericellular fluid annulus in cortical bone but not in cancellous bone. Diabetes impacted the spacing of the lacunae, while the perlecan deficiency had a profound influence on the pericellular fluid annulus. The LCS network features play important roles in osteocyte signaling and regulation of bone growth and adaptation. | Xiaohan Lai Christopher Price Shannon Modla William R Thompson Jeffrey Caplan Catherine B Kirn-Safran Liyun Wang | 2015 | Bone Research2015，3，2： | 6 |
| 8 | Heterojunction: important strategy for constructing composite photocatalysts显示文摘As an ideal solution to energy and environment issues,conversion of sunlight into solar fuels by photocatalytic water splitting and greenhouse gas(CO_2)reduction has attracted keen research interest of multi-field scientists.In the past four decades,a large number of semiconductor photocatalysts have been | Xiaohan An Ying Wang Jinjin Lin Jinni Shen Zizhong Zhang Xuxu Wang | 2017 | Science Bulletin2017，62，9： | 5 |
| 9 | Imbalance of the reciprocally inhibitory loop between the ubiquitin-specific protease USP43 and EGFR/PI3K/AKT drives breast carcinogenesis显示文摘 | Lin He Xinhua Liu Jianguo Yang Wanjin Li Shumeng Liu Xujun Liu Ziran Yang Jie Ren Yue Wang Lin Shan Chengjian Guan Fei Pei Liandi Lei Yu Zhang Xia Yi Xiaohan Yang Jing Liang Rong Liu Luyang Sun Yongfeng Shang | 2018 | Cell Research2018，28，9： | 5 |
| 10 | A transceptor-channel complex couples nitrate sensing to calcium signaling in Ambidopsis显示文摘Nitrate-induced Ca^(2+) signaling is crucial for the primary nitrate response in plants.However,the molecular mechanism underlying the generation of the nitrate-specific calcium signature remains unknown.We report here that a cyclic nucleotide-gated channel(CNGC)protein,CNGC15,and the nitrate transceptor(NRT1.1)constitute a molecular switch that controls calcium influx depending on nitrate levels.The expression of CNGC15 is induced by nitrate,and its protein is localized at the plasma membrane after establishment of young seedlings.We found that disruption of CNGC15 results in the loss of the nitrate-induced Ca^(2+) signature(primary nitrate response)and retards root growth,reminiscent of the phenotype observed in the nrt1.1 mutant.We further showed that CNGC15 is an active Ca^(2+)-permeable channel that physically interacts with the NRT1.1 protein in the plasma membrane.Importantly,we discovered that CNGC15-NRT1.1 interaction silences the channel activity of the heterocomplex,which dissociates upon a rise in nitrate levels,leading to reactivation of the CNGC15 channel.The dynamic interactions between CNGC15 and NRT1.1 therefore control the channel activity and Ca^(2+) influx in a nitrate-dependent manner.Our study reveals a new nutrient-sensing mechanism that utilizes a nutrient transceptor-channel complex assembly to couple nutrient status to a specific Ca^(2+) signature. | Xiaohan Wang Changxin Feng LiLi Tian Congcong Hou Wang Tian Bin Hu Qian Zhang Zhijie Ren Qi Niu Jiali Song Dongdong Kong Liangyu Liu Yikun He Ligeng Ma Chengcai Chu Sheng Luan Legong Li | 2021 | Molecular Plant2021，14，5： | 5 |
| 11 | Electrically controllable laser frequency combs in graphene-fibre microresonators显示文摘Laser frequency combs emitting ultrafast pulses of light,at equidistantly discrete frequencies,are cornerstones of modern information networks.In recent years,the generation of soliton combs in microcavities with ultrahighquality factors has established microcombs as out-oflaboratory tools.However,the material and geometry of a laser cavity,which determine comb formation,are difficult to electrically tune.Such dynamic control can further enrich the diversity of comb outputs and help to actively stabilize them. | Chenye Qin Kunpeng Jia Qianyuan Li Teng Tan Xiaohan Wang Yanhong Guo Shu-Wei Huang Yuan Liu Shining Zhu Zhenda Xie Yunjiang Rao Baicheng Yao | 2020 | Light(Science & Applications)2020，9，1： | 5 |
| 12 | Ultrabroad band microwave absorption from hierarchical MoO_(3)/TiO_(2)/Mo_(2)TiC_(2)Tx hybrids via annealing treatment显示文摘Two-dimensional(2D)transition metal carbide MXene-based materials hold great potentials applied for new electromagnetic wave(EMW)absorbers.However,the application of MXenes in the field of electromagnetic wave absorption(EMA)is limited by the disadvantages of poor impedance matching,single loss mechanism,and easy oxidation.In this work,MoO_(3)/TiO_(2)/Mo_(2)TiC_(2)T_(x)hybrids were prepared by the annealing-treated Mo_(2)TiC_(2)T_(x)MXene and uniform MoO_(3)and TiO_(2)oxides in-situ grew on Mo_(2)TiC_(2)T_(x)layers.At the annealing temperature of 300℃,the minimum reflection loss(RLmin)value of MoO_(3)/TiO_(2)/Mo_(2)TiC_(2)T_(x)reaches-30.76 dB(2.3 mm)at 10.18 GHz with a significantly broadening effective absorption bandwidth(EAB)of 8.6 GHz(1.8 mm).The in-situ generated oxides creating numerous defects and heterogeneous interfaces enhance dipolar and interfacial polarizations and optimize the impedance matching of Mo_(2)TiC_(2)T_(x).Considering the excellent overall performance,the MoO_(3)/TiO_(2)/Mo_(2)TiC_(2)T_(x)hybrids can be a promising candidate for EMA. | Feiyue HU Fan ZHANG Xiaohan WANG Yaya LI Hailong WANG Rui ZHANG Hongxia LI Bingbing FAN | 2022 | Journal of Advanced Ceramics2022，11，9： | 5 |
| 13 | SHEsisEpi, a GPU-enhanced genome-wide SNP-SNP interaction scanning algorithm, efficiently reveals the risk genetic epistasis in bipolar disorder显示文摘 | Xiaohan Hu Qiang Liu Zhao Zhang Zhiqiang Li Shilin Wang Lin He Yongyong Shi | 2010 | Cell Research2010，20，7： | 5 |
| 14 | Modulation of nitrate-induced phosphate response by the MYB transcription factor RLI1/HINGE1 in the nucleus显示文摘The coordinated utilization of nitrogen(N)and phosphorus(P)is vital for plants to maintain nutrient balance and achieve optimal growth.Previously,we revealed a mechanism by which nitrate induces genes for phosphate utilization;this mechanism depends on NRT1.1B-facilitated degradation of cytoplasmic SPX4,which in turn promotes cytoplasmic-nuclear shuttling of PHR2,the central transcription factor of phosphate signaling,and triggers the nitrate-induced phosphate response(NIPR)and N-P coordinated utilization in rice.In this study,we unveiled a fine-tuning mechanism of NIPR in the nucleus regulated by Highly Induced by Nitrate Gene 1(HINGE1,also known as RLI1),a MYB-transcription factor closely related to PHR2.RLI1/HINGE1,which is transcriptionally activated by PHR2 under nitrate induction,can directly activate the expression of phosphate starvation-induced genes.More importantly,RLI1/HINGE1 competes with PHR2 for binding to its repressor proteins in the nucleus(SPX proteins),and consequently releases PHR2 to further enhance phosphate response.Therefore,RLI1/HINGE1 amplifies the phosphate response in the nucleus downstream of the cytoplasmic SPX4-PHR2 cascade,thereby enabling fine-tuning of N-P balance when nitrate supply is sufficient. | Zhihua Zhang Zhao Li Wei Wang Zhimin Jiang Liping Guo Xiaohan Wang Yangwen Qian Xiahe Huang Yongqiang Liu Xiujie Liu Yahong Liu Aifu Li Yu Yan Junpeng Xie Shouyun Cao Stanislav Kopriva Legong Li Fanjiang Kong Baohui Liu Yingchun Wang Bin Hu Chengcai Chu | 2021 | Molecular Plant2021，14，3： | 4 |
| 15 | Spectrum projection with a bandgap-gradient perovskite cell for colour perception显示文摘Optoelectronic devices for light or spectral signal detection are desired for use in a wide range of applications,including sensing,imaging,optical communications,and in situ characterization.However,existing photodetectors indicate only light intensities,whereas multiphotosensor spectrometers require at least a chip-level assembly and can generate redundant signals for applications that do not need detailed spectral information.Inspired by human visual and psychological light perceptions,the compression of spectral information into representative intensities and colours may simplify spectrum processing at the device level.Here,we propose a concept of spectrum projection using a bandgap-gradient semiconductor cell for intensity and colour perception.Bandgap-gradient perovskites,prepared by a halide-exchanging method via dipping in a solution,are developed as the photoactive layer of the cell.The fabricated cell produces two output signals:one shows linear responses to both photon energy and flux,while the other depends on only photon flux.Thus,by combining the two signals,the single device can project the monochromatic and broadband spectra into the total photon fluxes and average photon energies(i.e.,intensities and hues),which are in good agreement with those obtained from a commercial photodetector and spectrometer.Under changing illumination in real time,the prepared device can instantaneously provide intensity and hue results.In addition,the flexibility and chemical/bio-sensing of the device via colour comparison are demonstrated.Therefore,this work shows a human visual-like method of spectrum projection and colour perception based on a single device,providing a paradigm for high-efficiency spectrum-processing applications. | Mei-Na Zhang Xiaohan Wu Antoine Riaud Xiao-Lin Wang Fengxian Xie Wen-Jun Liu Yongfeng Mei David Wei Zhang Shi-Jin Ding | 2020 | Light(Science & Applications)2020，9，1： | 4 |
| 16 | Overfitting Reduction of Pose Estimation for Deep Learning Visual Odometry显示文摘Error or drift is frequently produced in pose estimation based on geometric'feature detection and tracking'monocular visual odometry(VO)when the speed of camera movement exceeds 1.5 m/s.While,in most VO methods based on deep learning,weight factors are in the form of fixed values,which are easy to lead to overfitting.A new measurement system,for monocular visual odometry,named Deep Learning Visual Odometry(DLVO),is proposed based on neural network.In this system,Convolutional Neural Network(CNN)is used to extract feature and perform feature matching.Moreover,Recurrent Neural Network(RNN)is used for sequence modeling to estimate camera’s 6-dof poses.Instead of fixed weight values of CNN,Bayesian distribution of weight factors are introduced in order to effectively solve the problem of network overfitting.The 18,726 frame images in KITTI dataset are used for training network.This system can increase the generalization ability of network model in prediction process.Compared with original Recurrent Convolutional Neural Network(RCNN),our method can reduce the loss of test model by 5.33%.And it’s an effective method in improving the robustness of translation and rotation information than traditional VO methods. | Xiaohan Yang Xiaojuan Li Yong Guan Jiadong Song Rui Wang | 2020 | China Communications2020，17，6： | 4 |
| 17 | Intrinsically Stretchable Organic-Tribotronic-Transistor for Tactile Sensing显示文摘Stretchable electronics are of great significance for the development of the next-generation smart interactive systems.Here,we propose an intrinsically stretchable organic tribotronic transistor(SOTT)without a top gate electrode,which is composed of a stretchable substrate,silver nanowire electrodes,semiconductor blends,and a nonpolar elastomer dielectric.The drain-source current of the SOTT can be modulated by external contact electrification with the dielectric layer.Under 0-50%stretching both parallel and perpendicular to the channel directions,the SOTT retains great output performance.After being stretched to 50%for thousands of cycles,the SOTT can survive with excellent stability.Moreover,the SOTT can be conformably attached to the human hand,which can be used for tactile signal perception in human-machine interaction and for controlling smart home devices and robots.This work has realized a stretchable tribotronic transistor as the tactile sensor for smart interaction,which has extended the application of tribotronics in the human-machine interface,wearable electronics,and robotics. | Junqing Zhao Tianzhao Bu Xiaohan Zhang Yaokun Pang Wenjian Li Zhi Zhang Guoxu Liu Zhong Lin Wang Chi Zhang | 2020 | Research2020，，1： | 4 |
| 18 | UV/H2O2 oxidation of tri(2-chloroethyl) phosphate: Intermediate products, degradation pathway and toxicity evaluation显示文摘Tri(2-chloroethyl) phosphate(TCEP) with the initial concentration of 5 mg/L was degraded by UV/H2O2 oxidation process. The removal rate of TCEP in the UV/H2O2 system was 89.1% with the production of Cl-and PO4^3- of 0.23 and 0.64 mg/L. The removal rate of total organic carbon of the reaction was 48.8% and the pH reached 3.3 after the reaction. The oxidative degradation process of TCEP in the UV/H2O2 system obeyed the first order kinetic reaction with the apparent rate constant of 0.0025 min^-1( R^2 = 0.9788). The intermediate products were isolated and identified by gas chromatography-mass spectrometer. The addition reaction of HO · and H2O and the oxidation reaction with H2O2 were found during the degradation pathway of 5 mg/L TCEP in the UV/H2O2 system. For the first time, environment risk was estimated via the 'ecological structure activity relationships' program and acute and chronic toxicity changes of intermediate products were pointed out. The luminescence inhibition rate of photobacterium was used to evaluate the acute toxicity of intermediate products. The results showed that the toxicity of the intermediate products increased with the increase of reaction time, which may be due to the production of chlorine compounds. Some measures should be introduced to the UV/H2O2 system to remove the highly toxic Cl-containing compounds, such as a nanofiltration or reverse osmosis unit. | Qiuyi Ji Huan He Zhanqi Gao Xiaohan Wang Shaogui Yang Cheng Sun Shiyin Li Yong Wang Limin Zhang | 2020 | Journal of Environmental Sciences2020，32，12： | 4 |
| 19 | Routing valley exciton emission of a WS_(2) monolayer via delocalized Bloch modes of in-plane inversion-symmetry-broken photonic crystal slabs显示文摘The valleys of two-dimensional transition metal dichalcogenides(TMDCs)offer a new degree of freedom for information processing.To take advantage of this valley degree of freedom,on the one hand,it is feasible to control valleys by utilizing different external stimuli,such as optical and electric fields.On the other hand,nanostructures are also used to separate the valleys by near-field coupling.However,for both of the above methods,either the required low-temperature environment or low degree of coherence properties limit their further applications.Here,we demonstrate that all-dielectric photonic crystal(PhC)slabs without in-plane inversion symmetry(C_(2) symmetry)can separate and route valley exciton emission of a WS2 monolayer at room temperature.Coupling with circularly polarized photonic Bloch modes of such PhC slabs,valley photons emitted by a WS_(2) monolayer are routed directionally and are efficiently separated in the far field.In addition,far-field emissions are directionally enhanced and have long-distance spatial coherence properties. | Jiajun Wang Han Li Yating Ma Maoxiong Zhao Wenzhe Liu Bo Wang Shiwei Wu Xiaohan Liu Lei Shi Tian Jiang Jian Zi | 2020 | Light(Science & Applications)2020，9，1： | 4 |
| 20 | Anomalous enhancement of fluorescence of carbon dots through lanthanum doping and potential application in intracellular imaging of ferric ion显示文摘碳点(CD ) 的荧光的异常改进经由做的镧(La ) 被观察。做 La 的 CD (LaCD ) 在 4 min 以内通过微波热分解被准备。与做的 La 3+ ,尽管 La 3+ 是非荧光灯的,排放乐队从蓝色变了到绿色。量收益和荧光一生分别地在大约 20% 和 35% 改善了。所有实验结果显示做的 La 3+ 是调节荧光并且改进 CD 的表演的一个有效方法。LaCD 的另一个唯一的属性是到 Fe 3+ 的高敏感。La-CD-based 荧光探查被建立并且与 91 nmol/L 的察觉的限制为 Fe 3+ 的敏感、选择的察觉使用了。建议荧光探查成功地也被采用通过房间成像在实时 HeLa 房间设想细胞内部的 Fe 3+ 。钇作为 La 展出了一样的荧光改进效果,这也被显示出。结果可以为与特殊性质准备 CD 提供一条新线路。 | Shenghong Yang Xiaohan Sun Zhaoyan Wang Xiayan Wang Guangsheng Guo Qiaosheng Pu | 2018 | Nano Research2018，11，3： | 3 |
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