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Climatic impacts induced by w.nter w.eat irrigation over North China simulated by the nonhydrostatic RegCM4.7

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Advances in Climate Change Research 2024年第2期15卷 197-210页

作者： jia w. Zhen-Yu HAN Xue-Jie GAO zheng-jia LIU National Climate Centre China Meteorological AdministrationBeijing 100081China Key Laboratory for Climate Studies China Meteorological AdministrationBeijing 100081China Climate Change Research Center Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science and TechnologyNanjing 210044China Institute of Geographic Sciences and Natural Resources Research Chinese Academy of SciencesBeijing 100101China

Quantification of the impact of w.nter w.eat irrigation on the climate and the occurrence of extreme climatic events over North China is crucial for regional adaptation *** related studies mainly focused on the impact on surface processes;how.ver,few.focused on the effects of extreme events using high-resolution nonhydrostatic regional climate ***,the 9-km-resolution nonhydrostatic RegCM4.7 w.s coupled w.th a crop irrigation scheme and an updated w.nter w.eat irrigation dataset to better simulate irrigation *** experiments w.re conducted w.th and w.thout w.nter w.eat irrigation to isolate the effects of *** show.d that irrigation simulation reduces the model biases in temperature,precipitation,latent heat flux,soil moisture,sensitive heat flux,and top-layer soil ***,it also reduces the bias and increases the correlation w.th observations obtained in irrigated areas,especially in summer,indicating better representation of irrigation *** w.eat irrigation tends to cause substantial cooling of the local surface maximum,minimum,and mean air temperatures(by-1.68,-0.34,and-0.79℃,respectively)over irrigated areas of North China,w.th the largest changes observed in relation to maximum ***,precipitation is found to increase during spring and summer,w.ich is strongly related to w.ter vapor transport in the low.r levels of the *** analyses indicated that the number of annual mean hot days decrease(-13.9 d),w.ereas the number of both comfort days(+10.2 d)and rainy days(days w.th total precipitation greater than 1 mm:+6.6 d)increase over irrigated areas,demonstrating beneficial feedback to human perception and ***,although the heat w.ve risk increases(number of annual mean heat w.ve days:+5.8 d),the impact is limited to small areas w.thin irrigated ***,no notable change w.s found in terms of heavy rainfall events and precipitation intensity

关键词： Nonhydrostatic regional climate model Irrigation effect Extreme events North China

Comprehensive and sequential therapy for oral and maxillofacial malignancies： An evolving concept and clinical significance

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中国口腔颌面外科杂志 2008年第B5期6卷 196-197页

作者： jia w. zheng w.i L. Qiu ,Zhi Y. Zhang Department of Oral and Maxillofacial Surgery Ninth People'sHospital College of Stomatolosy School of Medicine ShanghaiJiao Tong University. Shanghai 200011 China

Oral and maxillofacial malignancies still remain significant health problems w.rldw.de, the 5- year relative survival rate w.s 47.7% for oral squamous cell carcinoma and 64.7% for carcinomas of the major salivary glands according to NCDB reports. Successful management of these malignancies now.requires a cooperative or multidisciplinary approach strongly evidence based, ordered, even individualized rather than randomized, among a broad group of medical disciplines including head and neck surgery, radiation oncology, medical oncology, medical imaging, clinical pathology and lab medicine, social w.rk, nutrition, and others. Different treatment modalities are mandatory for different primary sites, histopathologic types, different TNM stages and different patients, either dominated by surgery, radiation therapy or chemotherapy, coordinated other modalities. This paper evaluated and summarized current comprehensive and sequential approaches to the management of oral and maxillofacial malignancies, emphasizing the importance of multidisciplinary team approach to coordinate surgery, radiation therapy and chemotherapy. The roles of induction chemotherapy and concomitant chemoradiotherapy w.re also discussed. Comprehensive strategies for different oral and maxillofacial malignancies had been proposed by National Comprehensive Cancer Netw.rk (NCCN) and introduced to the Chinese colleagues for clinical references. The future lies in the development of individualized treatment regimes that combine early detection w.th organ preservation and result in improved cure rates and quality of life,

关键词：口腔恶性肿瘤治疗方法上颌面

A Quick Calculation Method for Radiation Pattern of Submillimeter Telescope w.th Deformation and Displacement

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Research in Astronomy and Astrophysics 2024年第3期24卷 249-265页

作者： jia You Yi-w.i Yao zheng w.ng School of Automation Southeast UniversityNanjing 210096China

Radiation pattern captures the electromagnetic performance of reflector antennas,w.ich is significantly affected by the deformation of the primary reflector due to gravity and the displacement of the secondary *** the design process of large reflector antennas,a substantial amount of time is often dedicated to iteratively adjusting structural parameters and validating electromagnetic *** improve the efficiency of the design process,w. first propose an approximate calculation method of optical path difference(OPD)for the deformation of the primary reflector under gravity and the displacement of the secondary *** an OPD fitting function based on the modified Zernike polynomials is proposed to capture the phase difference of radiation over the aperture plane,based on w.ich the radiation pattern w.ll be obtained quickly by the aperture field integration *** experiments demonstrate the effectiveness of the proposed quick calculation method for analyzing the radiation pattern of a 10.4 m submillimeter telescope antenna at its highest operating frequency of 856 *** comparison w.th the numerical simulation method based on GRASP(w.ich is an antenna electromagnetic analysis tool combining physical optics(PO)and physical theory of diffraction(PTD)),the quick calculation method reduces the time for radiation pattern analysis from more than one hour to less than tw. ***,the quick calculation method exhibits excellent accuracy for the figure of merit(FOM)of the radiation ***,the proposed quick calculation method can obtain the radiation pattern w.th high speed and *** to the time-consuming numerical simulation method(PO and PTD),it can be employed for quick analysis of the radiation pattern for the lateral displacement of the secondary reflector and the deformation of the primary reflector under gravity in the design process of a reflector antenna.

关键词： instrumentation high angular resolution-methods data analysis-methods analytical

Improving the Short-Range Precipitation Forecast of Numerical w.ather Prediction through a Deep Learning-Based Mask Approach

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Advances in Atmospheric Sciences 2024年第8期41卷 1601-1613页

作者： jiaqi zheng Qing LING jia LI Yerong FENG School of Computer Science and Engineering/Guangdong Provincial Key Laboratory of Computational Science Sun Yat-Sen UniversityGuangzhou 510006China School of Mathematics Sun Yat-Sen UniversityGuangzhou 510275China Guangzhou Institute of Tropical and Marine Meteorology/Guangdong Provincial Key Laboratory of Regional Numerical w.ather Prediction Guangzhou 510641China Shenzhen Institute of Meteorological Innovation Shenzhen 518038China

Due to various technical issues,existing numerical w.ather prediction(Nw.)models often perform poorly at forecasting rainfall in the first several *** correct the bias of an Nw. model and improve the accuracy of short-range precipitation forecasting,w. propose a deep learning-based approach called UNet Mask,w.ich combines Nw. forecasts w.th the output of a convolutional neural netw.rk called *** UNet Mask involves training the UNet on historical data from the Nw. model and gridded rainfall observations for 6-hour precipitation *** overlap of the UNet output and the Nw. forecasts at the same rainfall threshold yields a *** UNet Mask blends the UNet output and the Nw. forecasts by taking the maximum betw.en them and passing through the mask,w.ich provides the corrected 6-hour rainfall *** evaluated UNet Mask on a test set and in real-time *** results show.d that UNet Mask outperforms the Nw. model in 6-hour precipitation prediction by reducing the FAR and improving CSI *** tests also show.d that different small rainfall thresholds applied to the UNet and the Nw. model have different effects on UNet Mask's forecast *** study show. that UNet Mask is a promising approach for improving rainfall forecasting of Nw. models.

关键词： deep learning numerical w.ather prediction(Nw.) 6-hour quantitative precipitation forecast

Joint alignment and steering to manage interference

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Digital Communications and Netw.rks 2024年第2期10卷 429-438页

作者： Zhao Li Xiujuan Liang Yinghou Liu jia Liu zheng Yan School of Cyber Engineering Xidian UniversityXi'an710126China Technol.on Commun.Net.Lab. The 54th Research Inst.of China Elec.Technol.Group Corp.Shijiazhuang050081China School of Computer Science and Technology Xidian UniversityXi'an710126China The Department of Communications and Netw.rking(Comnet) Aalto University02150EspooFinland

In w.reless communication netw.rks,mobile users in overlapping areas may experience severe interference,therefore,designing effective Interference Management(IM)methods is crucial to improving netw.rk ***,w.en managing multiple disturbances from the same source,it may not be feasible to use existing IM methods such as Interference Alignment(IA)and Interference Steering(IS)*** is because w.th IA,the aligned interference becomes indistinguishable at its desired Receiver(Rx)under the cost constraint of Degrees-of-Freedom(DoF),w.ile w.th IS,more transmit pow.r w.ll be consumed in the direct and repeated application of IS to each *** remedy these deficiencies,Interference Alignment Steering(IAS)is proposed by incorporating IA and IS and exploiting their advantages in *** IAS,the interfering Transmitter(Tx)first aligns one interference incurred by the transmission of one data stream to a one-dimensional subspace orthogonal to the desired transmission at the interfered Rx,and then the remaining interferences are treated as a w.ole and steered to the same subspace as the aligned ***,tw. improved versions of IAS,i.e.,IAS w.th Full Adjustment at the Interfering Tx(IAS-FAIT)and Interference Steering and Alignment(ISA),are *** former considers the influence of IA on the interfering user-pair's *** orthogonality betw.en the desired signals at the interfered Rx can be maintained by adjusting the spatial characteristics of all interferences and the aligned interference components,thus ensuring the Spectral Efficiency(SE)of the interfering communication *** ISA,the pow.r cost for IS at the interfered Tx is minimized,hence improving SE performance of the interfered *** the proposed methods are realized at the interfering and interfered Txs cooperatively,the expenses of IM are shared by both *** in-depth simulation results show.that joint use of IA and

关键词： Interference Interference management Interference alignment Interference steering Spectral efficiency

Experimental,Numerical,and Analytical Studies on the Bending of Mechanically Lined Pipe

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China Ocean Engineering 2024年第2期38卷 221-232页

作者： w.I w.n-bin YUAN Lin ZHOU jia-sheng LIU zheng State Key Laboratory of Hydraulic Engineering Simulation and Safety Tianjin UniversityTianjin 300072China School of Civil Engineering Tianjin UniversityTianjin 300072China School of Mechanical Engineering Tianjin UniversityTianjin 300072China

Mechanically lined pipe(MLP)is often used for offshore oil and gas transport because of its low.cost and corrosion *** installation and operation,the pipe may undergo severe bending deformation,w.ich causes the liner to separate from the outer pipe and buckles,affecting the stability of the w.ole *** this paper,the buckling response of MLP subjected to bending is investigated to clarify its bending characteristics by employing both experiments,numerical simulation,as theoretical *** types of MLPs w.re manufactured w.th GB 45 carbon steel(SLP)and Al 6061(ALP)used as the outer pipe material,*** hydraulic expansion and bending experiments of small-scale MLPs are *** addition to the ovalized shape of the cross-section for the SLP specimens,the copper liner w.s found to w.inkle on the compressive *** contrast,the liner of ALP remains intact w.thout developing any w.inkling and collapse *** addition,a dedicated numerical framew.rk and theoretical models w.re also *** w.s found both the manufacturing and bending responses of the MLP can be w.ll reproduced,and the predicted maximum moment and critical curvatures are in good agreement w.th the experimental results.

关键词： lined pipe bending nonlinear ring theory buckling plasticity

Advances of biomarkers in nasopharyngeal carcinoma’s early detection

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Science Bulletin 2024年第2期69卷 141-145页

作者： Xiao-Hui zheng Allan Hildesheim w.i-Hua jia State Key Laboratory of Oncology in South China Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and TherapyGuangdong Provincial Clinical Research Center for CancerSun Yat-sen University Cancer CenterGuangzhou 510060China Costa Rican Agency for Biomedical Investigation INCIENSA FoundationSan Jose 10108Costa Rica

Nasopharyngeal carcinoma(NPC),a highly invasive and metastatic cancer,is w.dely prevalent in South China,Southeast Asia,and North *** patients w.th stages I and II are often ***,NPC patients are usually diagnosed w.th advanced-stage(stages III and IV)at their first *** of NPC at early stage is the key to improve the survival of ***-Barr virus(EBV)plays an essential role in NPC occurrence in endemic ***-based biomarkers,including EBV antibody in serum and EBV DNA in plasma,have been specifically proposed for NPC early ***,w. summarize recent advances in biomarkers for the early detection of NPC.

关键词： patients nasopharyngeal Nasopharyngeal

Effects of tw. silicone resin coatings on performance of FeSiAl magnetic pow.er cores

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Journal of Iron and Steel Research International 2024年第5期31卷 1279-1288页

作者： jia-qi Liu zheng-qu Zhu Pu w.ng Yi-fan Li Jing Pang jia-quan Zhang School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing100083China Qingdao Yunlu Advanced Materials Technology Co. Ltd.Qingdao266232ShandongChina

Tw. silicon resins w.th excellent thermal stability,JH1123 and JH7102,are used as the insulated agents and binders for the gas-atomized FeSiAl pow.er,and corresponding magnetic pow.er cores(MPCs)are *** insulation capability and application prospects of the tw. silicon resins are evaluated by comparing the magnetic properties of the coated pow.er and *** scanning electron microscopy,energy dispersive X-ray spectroscopy and Fourier transform infrared spectroscopy results show.that uniform insulation layers are both formed on the pow.er ***1123 has stronger binding ability,and the JH1123-coated pow.er exhibits severe agglomeration,w.th d50(average particle size)approximately tw.ce that of the JH7102-coated *** as-prepared MPCs exhibit outstanding soft magnetic ***,the permeability of FeSiAl@JH1123 is up to 74.0,w.ich is 35.5%higher than that of FeSiAl@JH7102 because JH1123 can further improve the density of the *** for FeSiAl@JH7102,it has better direct current bias and low.r core loss of 716.9 mw.cm^(−3) at 20 mT and 1000 kHz due to its low.r coercivity and greater anti-magnetic saturation ability.A comprehensive comparison show. that FeSiAl@JH1123 is suitable for medium and high frequency applications,w.ile FeSiAl@JH7102 is more suitable for high frequency *** indicates that the use of JH1123 and JH7102 silicon resins for binding and insulated coating not only simplifies the preparation process of MPCs,but also enables the controlled production of MPCs for different applications.

关键词： FeSiAl Insulated coating Magnetic pow.er core Permeability Core loss

Light/pH dual-responsive magnetic metal-organic framew.rks composites for phosphorylated peptide enrichment

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Chinese Chemical Letters 2024年第7期35卷 222-226页

作者： Rui w.ng He Qi Haijiao zheng Qiong jia College of Chemistry Jilin UniversityChangchun 130012China Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education School of Life SciencesJilin UniversityChangchun 130012China

Metal-organic framew.rks(MOFs)combined w.th specific ligands are highly adaptable smart materials that can respond to external and physiological *** this study,w. introduced a pyridinyl zw.tterionic ligand w.th light/pH dual response into magnetic MOF composite(Fe_(3)O_(4)@Zw.MOF)for enrichment of phosphorylated peptides for the first *** introduction of the developed ligand gives MOF material dual response *** stimulation affects the generation/disappearance of free radicals of the pyridine derivative,resulting in a change in the charge gradient of the zw.tterion,and zw.tterion can also regulate the p H of the solution by adding acid or ***,the reversible capture and release of phosphorylated peptides can be easily achieved by adjusting light and *** established phosphorylated peptide enrichment platform exhibits high sensitivity(detection limit of 1 fmol),high selectivity(β-casein:BSA,1:1000),and good reusability(7 cycles).In addition,the method w.s applied to the enrichment of phosphorylated peptides in complex systems(non-fat milk and human serum),demonstrating the feasibility of this method for phosphoproteom *** conclusion,the synthesized Fe_(3)O_(4)@Zw.MOF is a promising MOF material,w.ich provides the possibility to advance the application of responsive MOFs materials in proteomics.

关键词： Light pH Dual-response Metal-organic framew.rks Phosphorylated peptide