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Climatic impacts induced by winter wheat irrigation over North China simulated by the nonhydrostatic RegCM4.7

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

作者： Jia WU 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 winter wheat 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;however,few focused on the effects of extreme events using high-resolution nonhydrostatic regional climate ***,the 9-km-resolution nonhydrostatic RegCM4.7 was coupled with a crop irrigation scheme and an updated winter wheat irrigation dataset to better simulate irrigation *** experiments were conducted with and without winter wheat irrigation to isolate the effects of *** showed 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 with observations obtained in irrigated areas,especially in summer,indicating better representation of irrigation *** wheat 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,with the largest changes observed in relation to maximum ***,precipitation is found to increase during spring and summer,which is strongly related to water vapor transport in the lower levels of the *** analyses indicated that the number of annual mean hot days decrease(-13.9 d),whereas the number of both comfort days(+10.2 d)and rainy days(days with total precipitation greater than 1 mm:+6.6 d)increase over irrigated areas,demonstrating beneficial feedback to human perception and ***,although the heat wave risk increases(number of annual mean heat wave days:+5.8 d),the impact is limited to small areas within irrigated ***,no notable change was found in terms of heavy rainfall events and precipitation intensity

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

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Intracardiac,pulmonary cement embolism in a 67-year-old female after cement-augmented pedicle screw instrumentation:A case report and review of literature

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World Journal of Clinical Cases 2021年第13期9卷 3120-3129页

作者： Tong-Zhou Liang Hai-Peng Zhu Bo gao Yan Peng Wen-jie gao Department of Orthopedics Sun Yat-Sen Memorial HospitalSun Yat-Sen UniversityGuangzhou 510289Guangdong ProvinceChina Department of Orthopedics Guangdong Women and Children HospitalGuangzhou 511400Guangdong ProvinceChina

BACKGROUND We report a case of Intracardiac,pulmonary,and intravenous cement embolism after cement-augmented pedicle screw instrumentation in treating spondylolisthesis underlying osteoporotic bone,which was successfully managed by conservative *** describe the treatment and outcome of the patient,hoping to shed light on the management of bone cement *** SUMMARY A 67-year-old female suffered from progressive low back pain and numbness in lower extremities for 30 *** was diagnosed with L4 and L5 spondylolisthesis,spinal stenosis,and *** patient underwent spinal canal decompression,an interbody fusion of L4/5 and L5/S1,cement-augmented pedicle screw instrumentation in L4-L5 segments,and regular pedicle screw in S1 *** days postoperatively,a sudden drop in oxygen saturation *** tomography scan confirmed Intracardiac,pulmonary,and intravenous *** patient was treated conservatively by continuous low-flow oxygen inhalation,anti-coagulation,and antibiotic therapy for 1 mo and continued anticoagulation treatment for 6 *** patient showed no further symptoms in a 30-mo *** Intracardiac,pulmonary cement embolism after cement-augmented pedicle screw instrumentation is extremely *** clinical and radiographic evaluation is required in multiple sites of bone cement *** treatment may be a primary consideration in scattered emboli without life-threatening conditions,but a clinical decision should be made on an individualized basis.

关键词： Osteoporosis Polymethyl methacrylate cement Pulmonary embolism Cement-augmented pedicle screw instrumentation Conservative treatment Case report

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Inversion of Array Induction Logs and Its Application

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Petroleum Science 2007年第3期4卷 31-35页

作者： gao jie Zhao Aibin Peng Fei Li Hongqi School of Resources and Information China University of Petroleum Beijing 102249 China Changqing Oilfield Company PetroChina Xi＇an Shaanxi 710021 China

With the help of the modified geometrical factor theory, the Marquardt method was used to calculate the true electrical parameters of the formation from array induction logs. The inversion results derived from the assumed model and some practical cases show that the rebuilt formation profile determined by 2-ft resolution array induction logs is reasonable when the formation thickness is greater than 1 m, which thus indicates that the inversion method is reliable and can provide quantitative information for the discrimination of oil/gas or water zone.

关键词： Array induction log modified geometrical factor Marquardt method inversion

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Various Kinds Waves and Solitons Interaction Solutions of Boussinesq Equation Describing Ultrashort Pulse in Quadratic Nonlinear Medium

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Communications in Theoretical Physics 2016年第12期65卷 589-594页

作者： Bang-Xing Guo Zhan-jie gao Ji Lin Department of Physics Zhejiang Normal University Jinhua 321004 China

The consistent tanh expansion(CTE) method is applied to the(2+1)-dimensional Boussinesq equation which describes the propagation of ultrashort pulse in quadratic nonlinear medium. The interaction solutions are explicitly given, such as the bright soliton-periodic wave interaction solution, variational amplitude periodic wave solution,and kink-periodic wave interaction solution. We also obtain the bright soliton solution, kind bright soliton solution, double well dark soliton solution and kink-bright soliton interaction solution by using Painlev′e truncated expansion *** we investigate interactive properties of solitons and periodic waves.

关键词： soliton interaction Boussinesq equation consistent tanh expansion method Painlevé truncated expansion method

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Digital Twin-Empowered Network Planning for Multi-Tier Computing

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Journal of Communications and Information Networks 2022年第3期7卷 221-238页

作者： Conghao Zhou jie gao Mushu Li Xuemin(Sherman)Shen Weihua Zhuang Department of Electrical and Computer Engineering University of WaterlooWaterlooONN2L 3G1Canada School of Information Technology Carleton UniversityOttawaONK1S 5B6Canada Department of Electrical Computerand Biomedical EngineeringToronto Metropolitan UniversityTorontoONM5B 2K3Canada

In this paper,we design a resource management scheme to support stateful applications,which will be prevalent in sixth generation(6G)*** from stateless applications,stateful applications require context data while executing computing tasks from user terminals(UTs).Using a multi-tier computing paradigm with servers deployed at the core network,gateways,and base stations to support stateful applications,we aim to optimize long-term resource reservation by jointly minimizing the usage of computing,storage,and communication resources and the cost of reconfiguring resource *** coupling among different resources and the impact of UT mobility create challenges in resource *** address the challenges,we develop digital twin(DT)empowered network planning with two elements,i.e.,multi-resource reservation and resource reservation ***,DTs are designed for collecting UT status data,based on which UTs are grouped according to their mobility ***,an algorithm is proposed to customize resource reservation for different groups to satisfy their different resource ***,a Meta-learning-based approach is developed to reconfigure resource reservation for balancing the network resource usage and the reconfiguration *** results demonstrate that the proposed DTempowered network planning outperforms benchmark frameworks by using less resources and incurring lower reconfiguration costs.

关键词： 6G digital twin network planning multitier computing Meta-learning

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Periodic Solutions to an Evolution p-Laplacian System

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Journal of Mathematical Research and Exposition 2010年第3期30卷 390-398页

作者： Ying jie WEI Wen jie gao Institute of Mathematics Jilin University Jilin 130012 P. R. China

In this paper, the authors study the existence of periodic solutions to an evolution p-Laplacian system. The authors prove a comparison principle of the system in general form. Then the existence of periodic solutions to the system of evolution p-Laplacian equations is obtained with the help of the comparison principle and the monotone iteration technique.

关键词： existence periodic solutions p-Laplacian system.

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A novel strategy of lithium recycling from spent lithium-ion batteries using imidazolium ionic liquid

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Chinese Journal of Chemical Engineering 2022年第1期35卷 246-251页

作者： Hongshuai Zheng Jiaqi Huang Tao Dong Yifan Sha Haitao Zhang jie gao Suojiang Zhang CAS Key Laboratory of Green Process and Engineering Beijing Key Laboratory of Ionic Liquids Clean ProcessState Key Laboratory of Multiphase Complex SystemsInnovation Academy for Green ManufactureInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou 450002China Ningbo Institute of Materials Technology&Engineering Chinese Academy of SciencesNingbo 315201China

In light of the increasing demand for environmental protection and energy conservation,the recovery of highly valuable metals,such as Li,Co,and Ni,from spent lithium-ion batteries(LIBs)has attracted widespread *** conventional recycling strategies,however,suffer from a lack of lithium recycling,although they display high efficiency in the recovery of Co and *** this work,we report an efficient extraction process of lithium from the spent LIBs by using a functional imidazolium ionic *** extraction efficiency can be reached to 92.5%after a three-stage extraction,while the extraction efficiency of Ni-Co-Mn is less than 4.0%.The new process shows a high selectivity of lithium *** spectroscopy and ultraviolet are utilized to characterize the variations in the functional groups during extraction to reveal that the possible extraction mechanism is cation *** results of this work provide an effective and sustainable strategy of lithium recycling from spent LIBs.

关键词： Ionic liquid Lithium Selective extraction Spent lithium batteries Recovery

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Characterization of vortex structures with self-excited oscillations based on Liutex-Omega vortex identification method

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Journal of Hydrodynamics 2023年第1期35卷 95-111页

作者： Dong-dong Wang Zhao-hui Wang Yi-wei Fan Xiao Sun Quan-jie gao Key Laboratory of Metallurgical Equipment and Control Technology of Ministry of Education Wuhan University of Science and TechnologyWuhan430081China Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering Wuhan University of Science and TechnologyWuhan430081China

The self-excited oscillation effect produces a continuous periodic pulsation without an external excitation *** is widely used in fluid heat and mass transfer,cavitation and resistance reduction,and other related *** self-excited oscillation effect is significantly influenced by the vortex structure created by the jet passing through the specially designed *** flow field in a self-excited oscillation cavity is simulated in this paper using the large eddy simulation(LES)*** Liutex-Omega([Math Processing Error])method is used to analyze the vortex structure’s evolution inside the cavity and is contrasted with the Q-criterion,the λ_(2)-criterion,and the Omega(Ω)*** studies indicate that the[Math Processing Error]method is less sensitive to threshold selection compared with other methods,while it is more capable of identifying weak *** change in cavity vortex structure can be devided into the four stages of vortex ring priming,growth and development,wall touch separation,and *** turbulent energy generated by shear effect can promote the growth and development of the vortex ring structure and has an important influence on the formation of the vortex ring *** vortex strength reveals the interaction mechanism between the shear effect and vortex *** vortex core area illustrates that the small-scale vortices are mainly distributed inside the collision walls of the cavity and the downstream flow *** Liutex-omega method has unique advantages in analyzing the cavity flow field and revealing the mechanism of self-excited oscillations.

关键词： Vortex identification Liutex-Omega([Math Processing Error]) self-excited oscillation large eddy simulation(LES)

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Establishment of highly efficient plant regeneration of Paeonia ostii‘Fengdan’through optimization of callus,adventitious shoot,and rooting induction

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Horticultural Plant Journal 2022年第6期8卷 777-786页

作者： Rong Liu Yuqian Xue Huiting Ci jie gao Shunli Wang Xiuxin Zhang Key Laboratory of Biology and Genetic Improvement of Horticultural Crops Ministry of Agriculture and Rural Affairs ChinaInstitute of Vegetables and FlowersChinese Academy of Agricultural SciencesInstitute of PeonyChinese Academy of Agricultural SciencesBeijing 100081China

Tree peony is a famous ornamental plant,while the low propagation rate is the main hurdles hindering the industry *** now,the highly efficient regeneration system for tree peony is not *** this study,using Paeonia ostii’Fengdan’mature embryos,the effects of variations in inoculation method,initiating culture,adventitious shoot induction,rooting media,plant growth regulators(PGRs),and a nonconventional PGR(plant extracts)on regeneration from explants were *** embryo cultures,embryonic callus induction rate of 1/4 embryos was the highest among those of embryos with other three technical treatments(whole embryos,1/2 embryos,and pieces of embryos).The woody plant medium(WPM)containing 1.0 mg·L^(-1)6-BA,0.5 mg·L^(-1)GA3,30.0 g·L^(-1)sucrose,and 3.0 g·L^(-1)phytagel significantly improved shoot induction and multiplication.3.0 mg·L^(-1)plant extracts promoted hypocotyl germination,rooting,and root growth,in direct embryo culture,and a combination of 3.0 mg·L^(-1)plant extracts+2.0 mg·L^(-1)IBA+1.5 mg·L^(-1)IAA produced optimal rooting induction rate for multiple shoots in direct embryo culture and indirect somatic *** the three in vitro micropropagation methods,the highest shoot proliferation coefficient(5.4±0.2)was obtained with indirect somatic ***,the propagation ability of shoots remains high,even when culture propagation was continued for more than two ***,a reliable system for plant regeneration from mature embryos derived from ***’Fengdan’callus and two direct embryo culture systems have been *** novel regeneration system could facilitate uniform seedling production.

关键词： Tree peony Mature embryos Plant extracts Shoot induction Rooting Plant regeneration

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Genome-wide association analysis identified molecular markers and candidate genes for flower traits in Chinese orchid (Cymbidium sinense)

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Horticulture Research 2023年第11期10卷 193-207页

作者： Fengxi Yang Yudi Guo jie Li Chuqiao Lu Yonglu Wei jie gao Qi Xie Jianpeng Jin Genfa Zhu Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization Environmental Horticulture Research InstituteGuangdong Academy of Agricultural SciencesGuangzhou 510640China

The orchid,the champagne of f lowers,brings luxury,elegance,and novelty to *** sinense is a symbol of gigantic floral variability on account ofwavering shapes and sizes of f loral organs,althoughmarker-trait association(MTA)has not been studied for its f loral *** evaluated markers associated with 14 f loral traits of *** through a genome-wide association study(GWAS)of 195 accessions.A total of 65318522 single-nucleotide polymorphisms(SNPs)and 3906176 insertion/deletion(InDel)events were identified through *** these,4694 potential SNPs and 477 InDelswere identified as MTAs at−log10 P>*** genes related to these SNPs and InDels were largely associated with f loral regulators,hormonal pathways,cell division,and metabolism,playing essential roles in tailoring f loral ***,20 candidate SNPs/InDels linked to 11 genes were verified,8 of which were situated on exons,onewas located in the 5-UTR and twowere positioned in ***,themultitepal trait-related gene RABBIT EARS(RBE)was found to be the most crucial *** analyzed the role of CsRBE in the regulation of flower-related genes via efficient transient overexpression in *** protoplasts,and found that the floral homeotic genes CsAP3 and CsPI,as well as organ boundary regulators,including CsCUC and CsTCP genes,were regulated by ***,we obtained key gene loci for important ornamental traits of orchids using genome-wide association analysis of populations with natural *** findings of this study can do a great deal to expedite orchid breeding programs for shape variability.

关键词： traits analysis breeding

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