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主动防范风险护理对小儿支气管肺炎肺功能、护理质量及并发症的影响

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国际护理学杂志 2024年第7期43卷 1247-1251页

作者：师丽娟秦楠司瑞品赵依丽郑州大学第一附属医院小儿科郑州450000

目的探讨主动防范风险护理对小儿支气管肺炎肺功能、护理质量及并发症的影响。方法选取2020年4月至2022年7月郑州大学第一附属医院接治的165例支气管肺炎患儿作为研究对象,根据不同护理模式分为对照组(常规护理,n=80)及观察组(主动防范... 详细信息

目的探讨主动防范风险护理对小儿支气管肺炎肺功能、护理质量及并发症的影响。方法选取2020年4月至2022年7月郑州大学第一附属医院接治的165例支气管肺炎患儿作为研究对象,根据不同护理模式分为对照组(常规护理,n=80)及观察组(主动防范风险护理,n=85),对比两组患儿住院情况(通气治疗时间、住院时间及入住ICU时间)、肺功能情况〔用力肺活量(FVC)、第一秒用力呼气容积(FEV1)、呼气峰流量(PFE)〕、护理质量(护理安全行为调查表)、患儿风险事件发生率、投诉率及并发症发生率。结果观察组住院时间、通气治疗时间、入住ICU时间均短于对照组,差异有统计学意义(P<0.05)。观察组FVC、FEV1、PFE等肺功能指标均高于对照组,差异有统计学意义(P<0.05)。观察组护理安全行为评分中风险档案建立、管理追溯、人文关怀、预测及分析、危及处理与设备评分均高于对照组,差异有统计学意义(P<0.05)。观察组风险事件发生率(2.35%)、投诉率(1.18%)及并发症发生率(1.18%)均低于对照组(17.50%、11.25%及13.75%),差异有统计学意义(P<0.05)。结论主动防范风险护理有助于小儿支气管肺炎肺功能的改善,降低并发症发生率,促进机体康复。

关键词：主动防范风险护理程序小儿支气管肺炎肺功能护理质量并发症

Beamspace maximum likelihood algorithm based on sum and difference beams for elevation estimation

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Journal of Systems Engineering and Electronics 2024年第3期35卷 589-598页

作者： CHEN Sheng zhao Yongbo HU yili PANG Xiaojiao National Laboratory of Radar Signal Processing Xidian UniversityXi’an 710071China

Beamspace super-resolution methods for elevation estimation in multipath environment has attracted significant attention, especially the beamspace maximum likelihood(BML)algorithm. However, the difference beam is rarely used in superresolution methods, especially in low elevation estimation. The target airspace information in the difference beam is different from the target airspace information in the sum beam. And the use of difference beams does not significantly increase the complexity of the system and algorithms. Thus, this paper applies the difference beam to the beamformer to improve the elevation estimation performance of BML algorithm. And the direction and number of beams can be adjusted according to the actual needs. The theoretical target elevation angle root means square error(RMSE) and the computational complexity of the proposed algorithms are analyzed. Finally, computer simulations and real data processing results demonstrate the effectiveness of the proposed algorithms.

关键词： elevation estimation beamspace multipath environment maximum likelihood

Interpreting Larix principis-rupprechtii radial growth in northern China based on the Vaganov-Shashkin model

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Journal of Forestry Research 2024年第3期35卷 99-110页

作者： Jiachuan Wang Shuheng Li Qiang Li yili Guo Yijie Han Qi Liu Yiqi zhao College of Urban and Environmental Sciences Northwest UniversityXi'an 710127People's Republic of China Institute of Global Environmental Change Xi'an Jiaotong UniversityXi'an 710049People's Republic of China Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity Northwest UniversityXi'an 710127People's Republic of China State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi'an 710061People's Republic of China

Changes in annual radial growth is an important indication of climate change. Dendroclimatology studies in northern China have focused on linear statistical analysis,but lacking studies based on the process of ring formation to clarify the radial growth of trees. Tree-ring width standard chronology(STD) was established using samples of Larix principis-rupprechtii collected at 2303 m altitude on Luya Mountain. Using the Vaganov-Shashkin(VS) model to simulate growth and development, the internal physiological mechanism of radial growth is identified. It was concluded that:(1) the growing season of L. principis-rupprechtii was May to September;(2) soil moisture was a significant factor in the early and late growing seasons, and temperature was the dominant factor in its main growth period;and(3) formation of narrow ring widths was closely related to drought stress, the development of wide ring widths will be restricted by increasing future temperatures. The VS model is applicable for radial growth simulation of subalpine coniferous forests and for guiding the cultivation of local tree species in the future.

关键词： Vaganov-Shashkin model Larix principis-rupprechti Tree-ring width Annual growth

Verification and recalibration of HY-2A microwave radiometer brightness temperature

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Journal of Oceanology and Limnology 2019年第3期37卷 968-981页

作者： zhao yili LI Huimin CHEN Chuntao ZHU Jianhua National Ocean Technology Centre Tianjin 300112China Laboratoire d’Oceanographie Physique et Spatiale IfremerPlouzané 29280France

HY-2A is the first one of the Chinese HY-2 ocean satellite series carrying a microwave radiometer(RM)to measure sea surface temperature,sea surface wind speed,atmospheric water vapor,cloud liquid water content,and rain *** verified the RM level 1B brightness temperature(T B)to retrieve environmental *** the verification,TB that simulated using the ocean-atmosphere radiative transfer model(RTM)was used as a *** total bias and total standard deviation(SD)of the RM level 1B TB,with reference to the RTM simulation,ranged-20.6-4.38 K and 0.7-2.93 K,*** found that both the total bias and the total SD depend on the frequency and polarization,although the values for ascending and descending passes are *** addition,substantial seasonal variation of the bias was found at all *** verification results indicate the RM has some problems regarding calibration,e.g.,correction of antenna spillover and antenna physical emission,especially for the 18.7-GHz *** on error analyses,a statistical recalibration algorithm was designed and recalibration was performed for the RM level 1B *** of the recalibrated TB indicated that the quality of the recalibrated RM level 1B TB was improved *** bias of the recalibrated T B at all channels was reduced to<0.4 K,seasonal variation was almost eradicated,and SD was diminished(i.e.,the SD of the 18.7-GHz channel was reduced by more than 0.5K).

关键词： HY-2A microwave radiometer brightness temperature(TB) verification calibration

Home risk factors for childhood pneumonia in Nanjing, China

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Chinese Science Bulletin 2013年第25期58卷 4230-4236,82页

作者： ZHENG XiaoHong QIAN Hua zhao yili SHEN HongPing zhao ZhuoHui SUN YueXia SUNDELL Jan School of Energy and Environment Southeast University School of Public Health Fudan University School of Environmental Science and Engineering Tianjin University Department of Building Science and Technology Tsinghua University

Pneumonia is a major cause of childhood morbidity in *** studies of rural areas have found an association between pneumonia and air pollution from burning of *** present study is of children living in urban,modern homes without burning of *** order to investigate potential home risk factors associated with children’s pneumonia,China Child Home Health(CCHH)questionnaires were randomly distributed to parents of 6461 children in 23 kindergartens in all 11 districts of Nanjing,covering urban,suburban,and industrial *** 4014 valid questionnaires(response rate 65.7%)were returned and have been *** lifetime incidence of pneumonia in Nanjing children 1–8 years old is 26.7%.The incidence of croup,asthma and frequent common colds was strongly associated with pneumonia,as was a history of allergies in the family,and persons other than parents(for example grandparents or nanny)taking care of the *** home environmental factors,namely,dampness,lack of ventilation,using coal or natural gas(electricity as reference)for cooking,new furniture,and"modern"floor and wall covering materials were also significantly associated with *** indoor environment typical of modern apartments in China was a risk factor for pneumonia among children.

关键词：危险因素肺炎儿童中国南京生物质燃烧现代家庭覆盖材料

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Investigation on Ligand Exchange Kinetics on CdSe/ZnS Quantum Dot Surface Utilizing Pyrene as Flourescent Probe

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Chemical Research in Chinese Universities 2015年第4期31卷 514-518页

作者： CHANG Yulei LIU Nian LIU Huan YANG Yanming zhao yili LIYapeng YUAN Hang Alan G. MaeDiarmid Institute College of Chemistry Jilin University Changchun 130012 P. R. China The First Hospital of Jilin University Changehun 130021 P. R. China State Key Laboratory of Luminescence and Applications Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China The Second Hospital of Jilin University Changchun 130041 P. R. China

Direct ligand exchange kinetics between hydrophilic molecules and quantum dots（QDs） was investigated. Meanwhile, pyrene was exploited as probe to detect the efficiency of the ligand exchange reaction between octade- cylamine-coated QDs（ODA-QDs） and different ligands[ligand 1： NH2G3-OH, ligand 2： G4.5-PEG5-FA5, ligand 3：（COOH）2G3-OH or ligand 4： G4.5-PEG1-FAl]. It was indicated that water-soluble QDs exhibit the same fluores- cence and absorption spectra as ODA-QDs when they were dissolved in chloroform. Furthermore, the cellular expe- riments demonstrated that the folic acid（FA） targeting poly（amidoamine）（PAMAM） modified QD conjugates could be used as molecular targeting sensing systems for nanoparticle probes.

关键词： Fluorescent probe Ligand exchange kinetic Poly(amidoamine) dendrimer Pyrene Quantum dot

Absolute calibration of HY-2A and Jason-2 altimeters for sea surface height using GPS buoy in Qinglan, China

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Journal of Oceanology and Limnology 2019年第5期37卷 1533-1541页

作者： CHEN Chuntao ZHU Jianhua ZHAI Wanlin YAN Longhao zhao yili HUANG Xiaoqi YANG Weiwei National Ocean Technology Center Ministry of Natural Resources (MNR)

GPS buoy methodology is one of the main calibration methodologies for altimeter sea surface height calibration. This study introduces the results of the Qinglan calibration campaign for the HY-2A and Jason-2 altimeters. It took place in two time slices;one was from August to September 2014, and the other was in July 2015. One GPS buoy and two GPS reference stations were used in this campaign. The GPS data were processed using the real-time kinematic (RTK) technique. The fi nal error budget estimate when measuring the sea surface height (SSH) with a GPS buoy was better than 3.5 cm. Using the GPS buoy, the altimeter bias estimate was about -2.3 cm for the Jason-2 Geophysical Data Record (GDR) Version ‘D' and from -53.5 cm to -75.6 cm for the HY-2A Interim Geophysical Data Record (IGDR). The bias estimates for Jason-2 GDR-D are similar to the estimates from dedicated calibration sites such as the Harvest Platform, the Crete Site and the Bass Strait site. The bias estimates for HY-2A IGDR agree well with the results from the Crete calibration site. The results for the HY-2A altimeter bias estimated by the GPS buoy were verifi ed by cross-calibration, and they agreed well with the results from the global analysis method.

关键词： HY-2A altimeter calibration GPS buoy sea surface height Jason-2 altimeter

First six months quality assessment of HY-2A SCAT wind products using in situ measurements

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Acta Oceanologica Sinica 2013年第11期32卷 27-33页

作者： WANG He ZHU Jianhua LIN Mingsen HUANG Xiaoqi zhao yili CHEN Chuntao ZHANG Youguang PENG Hailong National Ocean Technology Center State Oceanic Administration National Satellite Ocean Application Service State Oceanic Administration

The first Chinese microwave ocean environment satellite HY-2A, carrying a Ku-band scatteromenter （SCAT）, was successfully launched in August 2011. The first quality assessment of HY-2A SCAT wind products is presented through the comparison of the first 6 months operationally released SCAT products with in situ data. The in situ winds from the National Data Buoy Center （NDBC） buoys, R/V Polarstern, Aurora Australis, Roger Revelle and PY30-1 oil platform, were converted to the 10 m equivalent neutral winds. The temporal and spatial differences between the HY-2A SCAT and the in situ observations were limited to less than 5 min and 12.5 km. For HY-2A SCAT wind speed products, the comparison and analysis using the NDBC buoys yield a bias of-0.49 m/s, a root mean square error （RMSE） of 1.3 m/s and an increase negative bias with increasing wind speed observation above 3 m/s. Although less accurate of HY-2A SCAT wind direction at low winds, the RMSE of 19.19° with a bias of 0.92° is found for wind speeds higher than 3 m/s. These results are found consistent with those from R/Vs and oil platform comparisons. Moreover, the NDBC buoy comparison results also suggest that the accuracy of HY-2A SCAT winds is consistent over the first half year of 2012. The encouraging assessment results over the first 6 months show that wind products from HY-2A SCAT will be useful for scientific community.

关键词： HY-2A satellite microwave scatterometer wind validation

A preliminary assessment of the sea surface wind speed production of HY-2 scanning microwave radiometer

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Acta Oceanologica Sinica 2014年第1期33卷 114-119页

作者： HUANG Xiaoqi ZHU Jianhua LIN Mingsen zhao yili WANG He CHEN Chuntao PENG Hailong ZHANG Youguang National Ocean Technology Center State Oceanic Administration National Satellite Ocean Application Service State Oceanic Administration

A scanning microwave radiometer（RM） was launched on August 16,2011,on board HY-2 *** six-month long global sea surface wind speeds observed by the HY-2 scanning microwave radiometer are preliminarily validated using in-situ measurements and WindSat observations,respectively,from January to June *** wind speed root-mean-square（RMS） difference of the comparisons with in-situ data is 1.89 m/s for the measurements of NDBC and 1.72 m/s for the recent four-month data measured by PY30-1 oil platform,*** a global scale,the wind speeds of HY-2 RM are compared with the sea surface wind speeds derived from WindSat,the RMS difference of 1.85 m/s for HY-2 RM collocated observations data set is calculated in the same period as *** analyzing the global map of a mean difference between HY-2 RM and WindSat,it appears that the bias of the sea surface wind speed is obviously higher in the inshore *** the open sea,there is a relatively higher positive bias in the mid-latitude regions due to the overestimation of wind speed observations,while the wind speeds are underestimated in the Southern Ocean by HY-2 RM relative to WindSat observations.

关键词： HY-2 satellite scanning microwave radiometer sea surface wind speed spatial and temporal collocation validation