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| 1 | Progresses on microwave remote sensing of land surface parameters显示文摘Highly accurate observations at various scales on the land surface are urgently needed for the studies of many areas,such as hydrology,meteorology,and agriculture.With the rapid development of remote sensing techniques,remote sensing has had the capacity of monitoring many factors of the Earth's land surface.Especially,the space-borne microwave remote sensing systems have been widely used in the quantitative monitoring of global snow,soil moisture,and vegetation parameters with their all-weather,all-time observation capabilities and their sensitivities to the characteristics of land surface factors.Based on the electromagnetic theories and microwave radiative transfer equations,researchers have achieved great successes in the microwave remote sensing studies for different sensors in recent years.This article has systematically reviewed the progresses on five research areas including microwave theoretical modeling,microwave inversion on soil moisture,snow,vegetation and land surface temperatures.Through the further enrichment of remote sensing datasets and the development of remote sensing theories and inversion techniques,remote sensing including microwave remote sensing will play a more important role in the studies and applications of the Earth systems. | SHI JianCheng DU Yang DU JinYang JIANG LingMei CHAI LinNa MAO KeBiao XU Peng NI WenJian XIONG Chuan LIU Qiang LIU ChenZhou GUO Peng CUI Qian LI YunQing CHEN Jing WANG AnQi LUO HeJia WANG YinHui | 2012 | Science China Earth Sciences2012，55，7： | 24 |
| 2 | Altered relationship between thickness and intrinsic activity amplitude in generalized tonic–clonic seizures显示文摘A thinner cortex has higher potential for binding GABA receptor A which is associated with larger amplitudes of intrinsic brain activity(i BA). However, the relationship between cortical thickness and i BA is unknown in intact and epileptic brains. To this end, we investigated the relationship between cortical thickness measured by highresolution MRI and surface-based i BA derived from resting-state functional MRI in normal controls(n = 82) andpatients with generalized tonic–clonic seizures(GTCS)only(n = 82). We demonstrated that the spatial distribution of cortical thickness negatively correlated with surface-based i BA amplitude at both whole-brain and within independent brain functional networks. In GTCS patients,spatial coupling between thickness and i BA amplitude decreased in the default mode, dorsal attention, and somatomotor networks. In addition, the vertex-wise acrosssubject thickness–i BA amplitude correspondence altered in the frontal and temporal lobes as well as in the precuneus in GTCS patients. The relationship between these two modalities can serve as a brain-based marker for detecting epileptogenic changes. | Wei Liao Jue Wang Ting Xu Zhiqiang Zhang Gong-Jun Ji Qiang Xu Zhengge Wang Fang Yang Xi-Nian Zuo Anqi Qiu Yu-Feng Zang Guangming Lu Huafu Chen | 2016 | Science Bulletin2016，61，24： | 3 |
| 3 | Heterologous expression of the Haynaldia villosa pattern-recognition receptor CERK1-V in wheat increases resistance to three fungal diseases显示文摘Wheat production is under continuous threat by various fungal pathogens.Identification of multipledisease resistance genes may lead to effective disease control via the development of cultivars with broad-spectrum resistance.Plant Lysin-motif(LysM)-type pattern-recognition receptors,which elicit innate immunity by recognizing fungal pathogen associated molecular patterns such as chitin,are potential candidates for such resistance.In this study,we cloned a LysM receptor-like kinase gene,CERK1-V,from the diploid wheat relative Haynaldia villosa.CERK1-V expression was induced by chitin and Blumeria graminis f.sp.tritici,the causal agent of wheat powdery mildew.Heterologous overexpression of CERK1-V in wheat inhibited the development of three fungal pathogens,thereby increased resistance to powdery mildew,yellow rust,and Fusarium head blight.CERK1-V physically interacted with the wheat Lys M protein Ta CEBi Ps.CERK1-V/Ta CEBi Ps interaction promoted chitin recognition and activated chitin signal transduction in wheat.Transgenic plants with excessively high CERK1-V expression showed high resistance but abnormal plant growth,whereas plants with moderate expression level showed adequate resistance level with no marked impairment of plant growth.In transgenic lines,RNA-seq showed that gene expression involved in plant innate immunity was activated.Expression of genes involved in photosynthesis,ER stress and multiple phytohormone pathways was also activated.Optimized expression of CERK1-V in wheat can confer disease resistance without compromising growth or defense fitness. | Anqi Fan Luyang Wei Xu Zhang Jia Liua Li Sun Jin Xiao Yajia Wang Haiyan Wang Jian Hua Ravi P.Singh Zongkuan Wang Xiue Wang | 2022 | The Crop Journal2022，10，6： | 2 |
| 4 | Characteristics of subsurface mesoscale eddies in the northwestern tropical Pacifi c Ocean from an eddy-resolving model显示文摘Subsurface eddies(SSEs)are common features of the ocean interior.They are particularly abundant in oceanic basins and the vicinity of major intermediate water outfl ows.They are responsible for subsurface transport of mass,heat,and salt.Analysis of high-resolution general circulation model data has revealed the existence of subsurface anticyclonic eddies(SSAEs)and subsurface cyclonic eddies(SSCEs)in the northwestern tropical Pacifi c Ocean.SSEs are abundant east of the Philippines(0°–22°N,120°E–140°E)and in latitude bands between 9°N–17°N east of 140°E.The composite structure of SSEs was investigated.SSEs had a core at about 400-m water depth and their maximum meridional velocity exceeded 10 cm/s.They exhibited two cores with diff erent salinity polarities in the surface and subsurface.Additionally,spatial distributions of heat transport induced by SSEs in the northwestern tropical Pacifi c were presented for the fi rst time.A net equatorward heat fl ux toward a temperature up-gradient was observed.The analysis of eddy-mean fl ow interactions revealed that the circulation is baroclinically and barotropically unstable at diff erent depths and to diff ering degrees.The energy conversions suggest that both barotropic and baroclinic instabilities are responsible for SSE generation east of the Philippines,whereas baroclinic instability caused by a horizontal density gradient and vertical eddy heat fl ux are important between 9°N and 17°N east of 140°E.Meridional movement of the north equatorial current and the north equatorial undercurrent can contribute to SSE generation in our study region. | XU Anqi YU Fei NAN Feng REN Qiang | 2020 | Journal of Oceanology and Limnology2020，38，5： | 1 |
| 5 | Petrogenesis and Tectonic Implications of Jurassic Granites in the Xingcheng Area,Northeastern North China Craton显示文摘New integrated geochemical studies are reported for Jurassic granites of the Xingcheng area in the northeastern North China Craton.U-Pb zircon data indicate that the Huashan and Taili monzogranites were emplaced during the Early(189±2 Ma)and Late(155±1 Ma)Jurassic,respectively.They are typical of high-K calc-alkaline series rocks and I-type granites,according to our whole-rock geochemical researches.Both Early and Late Jurassic monzogranites show adakitic rock characteristics because of their high Sr contents(221-347 ppm)and Sr/Y ratios(28.7-37.5),and low Y contents(7.83-14.7 ppm).The Early Jurassic monzogranite samples have an(^(87)Sr/^(86)Sr)i ratio of 0.7046,ε_(Nd)(t)values of -11.62 to -11.51,and ε_(Hf)(t)values of -13.6 to-6.4,whereas the Late Jurassic monzogranites have higher(87Sr/86Sr)i ratios of 0.7069-0.7071and lower ε_(Nd)(t)(-20.65 to-20.46)and ε_(Hf)(t)(-27.6 to-20.0)values.We suggest that the Early Jurassic adakitic rocks were derived from partial melting of thickened lower crust contaminated with mantle-derived materials,related to subduction of the Paleo-Pacific Plate.The Late Jurassic adakitic rocks were derived from partial melting of thickened lower crust in an extensional tectonic setting associated with an active continental margin. | MU Maosong YANG Debin XU Wenliang QUAN Yikang HAO Leran YANG Haotian WANG Anqi | 2021 | Acta Geologica Sinica(English Edition)2021，95，5： | 1 |
| 6 | Pancreatic cancer cells render tumor-associated macrophages metabolically reprogrammed by a GARP and DNA methylation-mediated mechanism显示文摘How tumor-associated macrophages transit from a predominant antitumor M1-like phenotype to a protumoral M2-like phenotype during the development of pancreatic ductal adenocarcinoma (PDA) remains to be elucidated. We thus conducted a study by employing a PDA-macrophage co-culture system, an “orthotopic” PDA syngeneic mouse model, and human PDA specimens, together with macrophages derived from GARP knockout mice and multiple analytic tools including whole-genome RNA sequencing, DNA methylation arrays, multiplex immunohistochemistry, metabolism measurement, and invasion/metastasis assessment. Our study showed that PDA tumor cells, through direct cell–cell contact, induce DNA methylation and downregulation of a panel of glucose metabolism and OXPHOS genes selectively in M1-like macrophages, leading to a suppressed glucose metabolic status in M1-like but not in M2-like macrophages. Following the interaction with PDA tumor cells, M1-like macrophages are reprogrammed phenotypically to M2-like macrophages. The interaction between M1-like macrophages and PDA cells is mediated by GARP and integrin αV/β8, respectively. Blocking either GARP or integrin would suppress tumor-induced DNA methylation in Nqo-1 gene and the reprogramming of M1-like macrophages. Glucose-response genes such as Il-10 are subsequently activated in tumor-educated M1-like macrophages. Partly through Il-10 and its receptor Il-10R on tumor cells, M1-like macrophages functionally acquire a pro-cancerous capability. Both exogenous M1-like and M2-like macrophages promote metastasis in a mouse model of PDA while such a role of M1-like macrophages is dependent on DNA methylation. Our results suggest that PDA cells are able to reprogram M1-like macrophages metabolically and functionally through a GARP-dependent and DNA methylation-mediated mechanism to adopt a pro-cancerous fate. | Mengwen Zhang Xingyi Pan Kenji Fujiwara Noelle Jurcak Stephen Muth Jiaojiao Zhou Qian Xiao Anqi Li Xu Che Zihai Li Lei Zheng | 2021 | Signal Transduction and Targeted Therapy2021，6，11： | 1 |
| 7 | Rapid evaluation of heterologous chimeric RBD-dimer mRNA vaccine for currently-epidemic Omicron sub-variants as booster shot after inactivated vaccine显示文摘With continuous mutations of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),the severe immune escape of Omicron sub-variants urges the development of next-generation broad-spectrum vaccines,especially as booster jabs after high-level vaccination coverage of inactivated vaccines in China and many other countries.Previously,we developed a coronavirus disease 2019(COVID-19)protein subunit vaccine ZF2001?based on the tandem homo-prototype receptor-binding domain(RBD)-dimer of the SARS-CoV-2 spike protein.We upgraded the antigen into a hetero-chimeric prototype(PT)-Beta or Delta-BA.1 RBD-dimer to broaden the cross-protection efficacy and prove its efficiency with protein subunit and mRNA vaccine platforms.Herein,we further explored the hetero-chimeric RBD-dimer mRNA vaccines and evaluated their broad-spectrum activities as booster jabs following two doses of inactivated vaccine(Ⅳ)in mice.Our data demonstrated that the chi-meric vaccines significantly boosted neutralizing antibody levels and specific T-cell responses against the vari-ants,and PT-Beta was superior to Delta-BA.1 RBD as a booster in mice,shedding light on the antigen design for the next-generation COVID-19 vaccines. | Qian Chen Pei Du Yuxuan Han Xuehui Ma Rong Zhang Xiaoyu Rong Xu Zhao Renyi Ma Huiting Yang Anqi Zheng Qingrui Huang Jinghua Yan Hui Wang Xin Zhao Lianpan Dai George F.Gao Qihui Wang | 2023 | Biosafety and Health2023，5，2： | 1 |
| 8 | Polyethylene glycol/polylactic acid block co‐polymers as solid–solid phase change materials显示文摘Phase change materials(PCMs)are promising thermal energy storage materials due to their high specific latent heat.Conventional PCMs typically exploit the solid–liquid(s–l)transition.However,leakage and leaching are common issues for solid–liquid PCMs,which have to be addressed before usage in practical applications.In contrast,solid–solid(s–s)PCMs would naturally overcome these issues due to their inherent form stability and homogeneity.In this study,we report a new type of s–s PCM based on chemically linked polyethylene glycol(PEG,the PCM portion)with polylactic acid(PLA,the support portion)in the form of a block co‐polymer.Solid‐solid latent heat of up to 56 J/g could be achieved,with melting points of between 44°C and 55°C.For comparison,PEG was physically mixed into a PLA matrix to form a PEG:PLA composite.However,the composite material saw leakage of up to 9%upon heating,with a corresponding loss in thermal storage capacity.In contrast,the mPEG/PLA block co‐polymers were found to be completely homogeneous and thermally stable even when heated above its phase transition temperature,with no observable leakage,demonstrating the superiority of chemical linking strategies in ensuring form stability. | Xiang YDSoo Joseph K.Muiruri Jayven CCYeo Zhuang MPng Anqi Sng Huiqing Xie Rong Ji Suxi Wang Hongfei Liu Jianwei Xu Xian JLoh Qingyu Yan Zibiao Li Qiang Zhu | 2023 | SmartMat2023，4，3： | 1 |
| 9 | Retrieving chlorophyll content and equivalent water thickness of Moso bamboo(Phyllostachys pubescens) forests under Pantana phyllostachysae Chao-induced stress from Sentinel-2A/B images in a multiple LUTs-based PROSAIL framework显示文摘Biochemical components of Moso bamboo(Phyllostachys pubescens)are critical to physiological and ecological processes and play an important role in the material and energy cycles of the ecosystem.The coupled PROSPECT with SAIL(PROSAIL)radiative transfer model is widely used for vegetation biochemical component content inversion.However,the presence of leaf-eating pests,such as Pantana phyllostachysae Chao(PPC),weakens the performance of the model for estimating biochemical components of Moso bamboo and thus must be considered.Therefore,this study considered pest-induced stress signals associated with Sentinel-2A/B images and field data and established multiple sets of biochemical canopy reflectance look-up tables(LUTs)based on the PROSAIL framework by setting different parameter ranges according to infestation levels.Quantitative inversions of leaf area index(LAI),leaf chlorophyll content(LCC),and leaf equivalent water thickness(LEWT)were derived.The scale conversions from LCC to canopy chlorophyll content(CCC)and LEWT to canopy equivalent water thickness(CEWT)were calculated.The results showed that LAI,CCC,and CEWT were inversely related with PPC-induced stress.When applying multiple LUTs,the p-values were<0.01;the R2 values for LAI,CCC,and CEWT were 0.71,0.68,and 0.65 with root mean square error(RMSE)(normalized RMSE,NRMSE)values of 0.38(0.16),17.56μg cm-2(0.20),and 0.02 cm(0.51),respectively.Compared to the values obtained for the traditional PROSAIL model,for October,R2 values increased by 0.05 and 0.10 and NRMSE decreased by 0.09 and 0.02 for CCC and CEWT,respectively and RMSE decreased by 0.35μg cm-2 for CCC.The feasibility of the inverse strategy for integrating pest-induced stress factors into the PROSAIL model,while establishing multiple LUTs under different pest-induced damage levels,was successfully demonstrated and can potentially enhance future vegetation parameter inversion and monitoring of bamboo forest health and ecosystems. | Zhanghua Xu Anqi He Yiwei Zhang Zhenbang Hao Yifan Li Songyang Xiang Bin Li Lingyan Chen Hui Yu Wanling Shen Xuying Huang Xiaoyu Guo Zenglu Li | 2023 | Forest Ecosystems2023，10，2： | 0 |
| 10 | Highly Flexible and Broad‑Range Mechanically Tunable All‑Wood Hydrogels with Nanoscale Channels via the Hofmeister Effect for Human Motion Monitoring显示文摘Wood-based hydrogel with a unique anisotropic structure is an attractive soft material,but the presence of rigid crystalline cellulose in natural wood makes the hydrogel less flexible.In this study,an all-wood hydrogel was constructed by cross-linking cellulose fibers,polyvinyl alcohol(PVA)chains,and lignin molecules through the Hofmeister effect.The all-wood hydrogel shows a high tensile strength of 36.5 MPa and a strain up to~438%in the longitudinal direction,which is much higher than its tensile strength(~2.6 MPa)and strain(~198%)in the radial direction,respectively.The high mechanical strength of all-wood hydrogels is mainly attributed to the strong hydrogen bonding,physical entanglement,and van der Waals forces between lignin molecules,cellulose nanofibers,and PVA chains.Thanks to its excellent flexibility,good conductivity,and sensitivity,the all-wood hydrogel can accurately distinguish diverse macroscale or subtle human movements,including finger flexion,pulse,and swallowing behavior.In particular,when“An Qi”was called four times within 15 s,two variations of the pronunciation could be identified.With recyclable,biodegradable,and adjustable mechanical properties,the all-wood hydrogel is a multifunctional soft material with promising applications,such as human motion monitoring,tissue engineering,and robotics materials. | Guihua Yan Shuaiming He Gaofeng Chen Sen Ma Anqi Zeng Binglin Chen Shuliang Yang Xing Tang Yong Sun Feng Xu Lu Lin Xianhai Zeng | 2022 | Nano-Micro Letters2022，14，5： | 0 |
| 11 | Structural basis of Sphingosine-1-phosphate transport via human SPNS2显示文摘Dear Editor,Sphingosine 1-phosphate(S1P)plays crucial roles in various physiological processes,including immune response,vascular development,and neural system homeostasis1 through activating S1P receptors(S1PRs).Notably,a desirable concentration gradient of S1P which is achieved by S1P transporters,including spinster homolog 2 protein(SPNS2)and MFSD2B that transport S1P from the intracellular side to the extracellular side of cells,2,3 is essential for proper S1P signaling.SPNS2 and MFSD2B belong to the major facilitator superfamily(MFS),and specifically. | Yaning Duan Nancy C.P.Leong Jing Zhao Yu Zhang Dat T.Nguyen Hoa T.T.Ha Na Wang Ruixue Xia Zhenmei Xu Zhengxiong Ma Yu Qian Han Yin Xinyan Zhu Anqi Zhang Changyou Guo Yu Xia Long N.Nguyen Yuanzheng He | 2024 | Cell Research2024，34，2： | 0 |
| 12 | Migrating behaviors of interfacial elements and oxide layers during diffusion bonding of 6063Al alloys using Zn interlayer in air显示文摘The oxide layer on the surface has always been a key obstacle to achieving the diffusion bonding of Al alloys.It is a challenge for performing diffusion bonding without removing oxide layers.Herein,diffusion bonding of Al alloy retaining continuous oxide layers was successfully achieved in the air by a low-temperature and low-pressure diffusion bonding mothed using a Zn interlayer.During the bonding processes,conducted at 360℃ and 3 MPa,Zn diffused into Al through cracks of thin oxide layers to form the joint composed Al/(diffusion layer)/(oxide layer)/(Zn)/(oxide layer)/(diffusion layer)/Al.The diffusion layers were composed of Zn-Al eutectoid,and the oxide layer included nanocrystals and amorphous Al_(2)O_(3).The shear strength of joints containing continuous oxide layers was about 30 MPa.Interestingly,the migration behavior toward the joint center of the interfacial oxide layers was observed with consuming of the Zn interlayer.The cracking phenomenon,the“subcutaneous diffusion”and the migration behavior of oxide layers were verified and analyzed by the diffusion bonding of anodized 6063Al-6063Al.Subsequently,the dynamic migration mechanism of oxide layers with elements diffusion and bonding interface strengths were discussed in detail.The ability to join Al alloys in the air at low temperatures and low pressure suggests a highly practical and economic method for diffusion bonding. | Pu Zhao Zhengwei Li Zhiwu Xu Xuesong Leng Anqi Tong Jiuchun Yan | 2023 | Journal of Materials Science & Technology2023，，24： | 0 |
| 13 | Self-templating synthesis of biomass-based porous carbon nanotubes for energy storage and catalytic degradation applications显示文摘Dwindling energy sources and a worsening environment are huge global problems,and biomass wastes are an under-exploited source of material for both energy and material generation.Herein,self-template decoction dregs of Ganoderma lucidum-derived porous carbon nanotubes(ST-DDLGCs)were synthesized via a facile and scalable strategy in response to these challenges.ST-DDLGCs exhibited a large surface area(1731.51 m^(2)g^(-1))and high pore volume(0.76 cm^(3)g^(-1)),due to the interlacing tubular structures of precursors and extra-hierarchical porous structures on tube walls.In the ST-DDLGC/PMS system,the degradation efficiency of capecitabine(CAP)reached~97.3%within 120 min.Moreover,ST-DDLGCs displayed high catalytic activity over a wide pH range of 3–9,and strong anti-interference to these typical and ubiquitous anions in wastewater and natural water bodies(i.e.,H_(2)PO_(4)^(-),NO_(3)^(-),Cl^(-) and HCO_(3)^(-)),in which a ^(1)O_(2)-dominated oxidation was identified and non-radical mechanisms were deduced.Additionally,ST-DDLGC-based coin-type symmetrical supercapacitors exhibited outstanding electrochemical performance,with specific capacitances of up to 328.1 F g^(-1)at 0.5 A g^(-1),and cycling stability of up to 98.6%after 10,000 cycles at a current density of 2 A g^(-1).The superior properties of ST-DDLGCs could be attributed to the unique porous tubular structure,which facilitated mass transfer and presented numerous active sites.The results highlight ST-DDLGCs as a potential candidate for constructing inexpensive and advanced environmentally functional materials and energy storage devices. | Manman Xu Shiqi Fu Yukai Wen Wei Li Qiongfang Zhuo Haida Zhu Zhikeng Zheng Yuwen Chen Anqi Wang Kai Yan | 2024 | Green Energy & Environment2024，9，3： | 0 |
| 14 | Anticancer,Anti-inflammatory and Antibacterial Effects of Aloin and Its Molecular Mechanism显示文摘Aloin is the main medicinal component extracted from Aloe vera.It is a natural anthraquinone compound,with anticancer,anti-inflammatory and antibacterial and other biological functions.This paper reviews the pharmacological action and related mechanisms of aloin,in order to provide a theoretical basis for the development and utilization of aloin. | Ting XU Wenshuang HOU Yuhe CUI Anqi WANG Jiazhu LI Chenghao JIN | 2023 | Medicinal Plant2023，14，6： | 0 |
| 15 | Identification of oleic acid as an endogenous ligand of GPR3显示文摘Although GPR3 plays pivotal roles in both the nervous system and metabolic processes,such as cold-induced thermogenesis,its endogenous ligand remains elusive.Here,by combining structural approach(including cryo-electron microscopy),mass spectrometry analysis,and functional studies,we identify oleic acid(OA)as an endogenous ligand of GPR3.Our study reveals a hydrophobic tunnel within GPR3 that connects the extracellular side of the receptor to the middle of plasma membrane,enabling fatty acids to readily engage the receptor.Functional studies demonstrate that OA triggers downstream Gs signaling,whereas lysophospholipids fail to activate the receptor.Moreover,our research reveals that cold stimulation induces the secretion of OA in mice,subsequently activating Gs/cAMP/PKA signaling in brown adipose tissue.Notably,brown adipose tissues from Gpr3 knockout mice do not respond to OA during cold stimulation,reinforcing the significance of GPR3 in this process.Finally,we propose a“born to be activated and cold to enhance”model for GPR3 activation.Our study provides a starting framework for the understanding of GPR3 signaling in cold-stimulated thermogenesis. | Yangjie Xiong Zhenmei Xu Xinzhi Li Yuqin Wang Jing Zhao Na Wang Yaning Duan Ruixue Xia Zhengbin Han Yu Qian Jiale Liang Anqi Zhang Changyou Guo Asuka Inoue Yu Xia Zheng Chen Yuanzheng He | 2024 | Cell Research2024，34，3： | 0 |
| 16 | Expert recommendations on data collection and annotation of two dimensional ultrasound images in azoospermic males for evaluation of testicular spermatogenic function in intelligent medicine显示文摘Testicular two-dimensional ultrasound is a testing modality that is often used to evaluate azoospermia and other related diseases.With the continuous development of deep learning in recent years,the combination of deep learning and testicular ultrasound appears unstoppable despite a lack of relevant standards.One of the major problems associated with the digitization of ultrasound images is the uneven quality of data however,and a standardized data source and acquisition process has not yet been developed.Such a standard could fill the current gap,and establish acquisition criteria for ultrasound images of testes during the male reproductive period,including grayscale ultrasound,shear wave elastography,and contrast-enhanced ultrasound.By following these guidelines the quality of testicular ultrasound images would be improved and standardized,which would lay a solid foundation for the standardization of testicular ultrasound images,and assist automated evaluation of testicular spermatogenic function of whole testis in azoospermic males. | Wanling Huang Yifan Xiang Yahan Yang Qing Tang Guangjian Liu Hong Yang Erjiao Xu Huitong Lin Zhixing Zhang Zhe Ma Zhendong Li Ruiyang Li Anqi Yan Haotian Lin Zhu Wang Chinese Association of Artificial Intelligence Medical Artificial Intelligence Branch of the Guangdong Medical Association | 2022 | Intelligent Medicine2022，2，2： | 0 |
| 17 | Response of Freezing/Thawing Indexes to the Wetting Trend under Warming Climate Conditions over the Qinghai–Tibetan Plateau during 1961–2010:A Numerical Simulation显示文摘Since the 1990s,the Qinghai–Tibetan Plateau(QTP)has experienced a strikingly warming and wetter climate that alters the thermal and hydrological properties of frozen ground.A positive correlation between the warming and thermal degradation in permafrost or seasonally frozen ground(SFG)has long been recognized.Still,a predictive relationship between historical wetting under warming climate conditions and frozen ground has not yet been well demonstrated,despite the expectation that it will become even more important because precipitation over the QTP has been projected to increase continuously in the near future.This study investigates the response of the thermal regime to historical wetting in both permafrost and SFG areas and examines their relationships separately using the Community Land Surface Model version 4.5.Results show that wetting before the 1990s across the QTP mainly cooled the permafrost body in the arid and semiarid zones,with significant correlation coefficients of 0.60 and 0.48,respectively.Precipitation increased continually at the rate of 6.16 mm decade–1 in the arid zone after the 1990s but had a contrasting warming effect on permafrost through a significant shortening of the thawing duration within the active layer.However,diminished rainfall in the humid zone after the 1990s also significantly extended the thawing duration of SFG.The relationship between the ground thawing index and precipitation was significantly negatively correlated(−0.75).The dual effects of wetting on the thermal dynamics of the QTP are becoming critical because of the projected increases in future precipitation. | Xuewei FANG Zhi LI Chen CHENG Klaus FRAEDRICH Anqi WANG Yihui CHEN Yige XU Shihua LYU | 2023 | Advances in Atmospheric Sciences2023，40，2： | 0 |
| 18 | Boosting the dimensionality of frequency entanglement using a reconfigurable microring resonator显示文摘Integrated quantum frequency combs(QFCs)based on microring resonators supplies as an essential resource for expanding the Hilbert-space dimensionality for high-dimensional quantum computing and information processing.In this work,we propose and demonstrate a reconfigurable ring resonator with tunable quality factors to efficiently increase the dimensionality of frequency entanglement,simultaneously,ensuring a high on-chip pair generation rate(PGR)and coincidence-to-accidental ratio(CAR).Our method exploits the asymmetric Mach-Zehnder interferometer instead of the traditional straight waveguide as the coupler of resonators which offer a tunable external coupling coefficient to modulate the quality factor to enlarge the QFCs’bandwidth and thus increase the dimensionality of frequency entanglement.We measured the QFCs’joint spectral intensity of 28 frequency pairs under various quality factors ranging from 16.6×10^(4) to 3.4×10^(4).Meanwhile,the measured Schmidt number increased from 11.01 to 24.77,denoting a huge expansion of the Hilbert-space dimensionality from 121 to a record number of 613 dimensions,which agrees well with our theoretical calculations.In addition,the PGR and CAR-another two key parameters for high-quality QFCs-were all measured under different quality factors to verify that our method can significantly increase the Schmidt number and CAR while maintaining a high PGR.In fact,bright QFCs with a total PGR of 4.3 MHz under a 0.48 mW pump power and a mean CAR of 1578 were simultaneously obtained at the highest Schmidt number.This method is widely applicable to other material-based ring resonators and can act as a general solution for high-dimensional QFCs. | Chao Wu Qilin Zheng Yingwen Liu Yang Wang Jiangfang Ding Pingyu Zhu Shichuan Xue Miaomiao Yu Weihong Luo Kaikai Zhang Anqi Huang Mingtang Deng Junjie Wu Ping Xu | 2023 | Science China(Physics,Mechanics & Astronomy)2023，66，5： | 0 |
| 19 | Obstacle Avoidance Method for a Redundant Manipulator Based on a Configuration Plane显示文摘This paper presents a novel approach of obstacle avoidance for redundant manipulators, which is challenging with the considerations of the building of universal kinematics, the formation of dynamics, and the generation of trajectories. A universal approach to deal with obstacle avoidance for the redundant manipulator, that is based on the configuration plane, is presented. The paper also examines common serial robot configurations and introduces a method for classification, partitioning, simplification, and forms of expression used in the workspace to define the configuration plane. This relatively new method is combined with a weighted space vector method to match the configuration plane and solve the inverse kinematics problem. The proposed planner is demonstrated with examples, in which the proposed planner is shown to be capable of providing a smoother trajectory. | Yanhui Wei Yanfeng Zhao Jing Liu Shenggong Hao Lixue Xu Qiang Zhu Anqi Wang | 2019 | Journal of Beijing Institute of Technology2019，28，3： | 0 |
| 20 | An Adaptive Many-objective Robust Optimization Model of Dynamic Reactive Power Sources for Voltage Stability Enhancement显示文摘The deployment of dynamic reactive power sourcecan effectively improve the voltage performance after a disturbance for a power system with increasing wind power penetration level and ubiquitous induction loads.To improve the voltage stability of the power system,this paper proposes an adaptive many-objective robust optimization model to deal with thedeployment issue of dynamic reactive power sources.Firstly,two metrics are adopted to assess the voltage stability of the system at two different stages,and one metric is proposed to assess the tie-line reactive power flow.Then,a robustness index isdeveloped to assess the sensitivity of a solution when subjectedto operational uncertainties,using the estimation of acceptablesensitivity region(ASR)and D-vine Copula.Five objectives areoptimized simultaneously:①total equipment investment;②adaptive short-term voltage stability evaluation;③tie-line power flow evaluation;④prioritized steady-state voltage stabilityevaluation;and⑤robustness evaluation.Finally,an anglebased adaptive many-objective evolutionary algorithm(MaOEA)is developed with two improvements designed for the application in a practical engineering problem:①adaptive mutationrate;and②elimination procedure without a requirement for athreshold value.The proposed model is verified on a modifiedNordic 74-bus system and a real-world power system.Numerical results demonstrate the effectiveness and efficiency of theproposed model. | Yuan Chi Anqi Tao Xiaolong Xu Qianggang Wang Niancheng Zhou | 2023 | Journal of Modern Power Systems and Clean Energy2023，11，6： | 0 |
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