检索结果-南通市图书馆

农业科技与装备 2024年第1期 13-15,19页

作者：郑玉宝本溪市马铃薯研究所辽宁本溪117000

以马铃薯品种“尤金”为试验材料,选用复合肥、尿素、氯化钾、生物有机肥、菌肥作为肥料,并根据土壤肥力及马铃薯需肥特性设立6个处理,以研究不同配方施肥对马铃薯生长的影响。结果表明,处理4配方施肥的单株块茎质量、商品率、产量最高... 详细信息

以马铃薯品种“尤金”为试验材料,选用复合肥、尿素、氯化钾、生物有机肥、菌肥作为肥料,并根据土壤肥力及马铃薯需肥特性设立6个处理,以研究不同配方施肥对马铃薯生长的影响。结果表明,处理4配方施肥的单株块茎质量、商品率、产量最高,效益最好。

关键词：马铃薯配方施肥性状产量

不同施用量复合肥对马铃薯产量及疮痂病的影响

在线全文

学校读者我要写书评

暂无评论

安徽农学通报 2024年第13期30卷 83-86页

作者：郑玉宝尹东本溪市马铃薯研究所辽宁本溪117000 黑龙江农业经济职业学院黑龙江牡丹江157041

本研究通过大田试验,分别设置0(处理1)、900(处理2)、1050(处理3)、1200(处理4)和1350 kg/hm^(2)(处理5)共5个施肥处理,探讨不同施用量复合肥对马铃薯产量及疮痂病发病情况的影响。结果表明,产量方面,处理2(43928.6 kg/hm^(2)),处理4(42... 详细信息

本研究通过大田试验,分别设置0(处理1)、900(处理2)、1050(处理3)、1200(处理4)和1350 kg/hm^(2)(处理5)共5个施肥处理,探讨不同施用量复合肥对马铃薯产量及疮痂病发病情况的影响。结果表明,产量方面,处理2(43928.6 kg/hm^(2)),处理4(42023.8 kg/hm^(2))和处理3(41277.8 kg/hm^(2))产量较高,与处理1差异存在统计学意义(P0.05);病薯率方面,处理1的病薯率最高(98.1%),处理4病薯率最低(91.9%),各处理间差异无统计学意义(P>0.05);病情指数方面,处理1的病情指数最高(56.6),与其他处理间差异具有统计学意义(P0.05)。综合各结果来看,处理2、处理3和处理4的表现较好,其疮痂病发病较轻,产量较高,兼顾了病害防治和经济效益,因此,建议生产上该作物复合肥施肥量以900~1200 kg/hm^(2)为宜。

关键词：马铃薯施肥量疮痂病病情指数防效

核苷(酸)类似物治疗慢性乙型肝炎患者HBeAg持续阳性的临床特征分析

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

中华肝脏病杂志 2024年第3期32卷 193-200页

作者：彭亮喷淦伟强郑玉宝陈幼明刘静邬喆斌高志良中山大学附属第三医院感染性疾病科、广东省肝脏疾病研究重点实验室、热带病防治研究教育部重点实验室广州510630

目的探讨核苷(酸)类似物治疗慢性乙型肝炎患者HBeAg持续阳性的临床特征。方法采用回顾性分析,按照数据类型的不同,使用独立样本t检验,Mann-Whitney U检验、χ^(2)检验或Fisher精确概率法。收集2009年1月至2018年12月中山三院感染科随访... 详细信息

目的探讨核苷(酸)类似物治疗慢性乙型肝炎患者HBeAg持续阳性的临床特征。方法采用回顾性分析,按照数据类型的不同,使用独立样本t检验,Mann-Whitney U检验、χ^(2)检验或Fisher精确概率法。收集2009年1月至2018年12月中山三院感染科随访病例库中慢性乙型肝炎患者资料,随访4年,按照HBeAg转阴的时间,将患者HBsAg≤3年转阴(A组)及>3年转阴或持续阳性(B组)分为两组,分别为87、145例。对两组患者的年龄、性别、家族史及基线与复诊过程中的肝生物化学指标等资料进行统计学分析。结果两组患者的性别、年龄、肝硬化家族史、肝癌家族史、治疗前肝硬化情况、治疗前合并脂肪肝情况及基线HBsAg、抗-HBc、丙氨酸转氨酶、白蛋白、总胆红素差异均无统计学意义(P值均>0.05)。基线时B组HBV DNA和HBeAg显著高于A组,P值均≤0.001。基线时A组天冬氨酸转氨酶和γ-谷氨酰转移酶显著高于B组。两组患者乙型肝炎家族史比例B组(69.0%)明显高于A组(50.6%),差异有统计意义(P=0.005);B组母亲患乙型肝炎比例(25.5%)显著高于A组(11.5%),P=0.010。治疗过程中B组HBV DNA定量在0.5年和1年时显著高于A组(P≤0.002);HBV DNA0.05)。结论HBeAg阳性的慢性乙型肝炎患者长期核苷(酸)类似物治疗时有部分患者HBeAg呈持续阳性,这部分患者有乙型肝炎家族史及母亲患有乙型肝炎的比例显著较高,HBV DNA早期(1年及以内)复常率低等特点。

关键词：慢性乙型肝炎家族史特征

玻璃体切除联合硅油填充术治疗脉络膜脱离型视网膜脱离的效果

在线全文

学校读者我要写书评

暂无评论

中华眼外伤职业眼病杂志 2024年第2期46卷 141-148页

作者：郑玉宝李兵刘军磊杨旭南阳市眼科医院眼底病科南阳473000

目的观察脉络膜脱离型视网膜脱离(RRD-CD)患者行25 G玻璃体切除联合硅油填充术的长期疗效。方法回顾性病例系列研究。分析南阳市眼科医院2017年8月至2022年8月住院行25 G玻璃体切除联合硅油填充术治疗的RRD-CD患者82例(82眼)的临床资料... 详细信息

目的观察脉络膜脱离型视网膜脱离(RRD-CD)患者行25 G玻璃体切除联合硅油填充术的长期疗效。方法回顾性病例系列研究。分析南阳市眼科医院2017年8月至2022年8月住院行25 G玻璃体切除联合硅油填充术治疗的RRD-CD患者82例(82眼)的临床资料。分析术前与术后最佳矫正视力(BCVA,log MAR)、眼压、眼前段炎症反应及最终视网膜复位率、视网膜脱离复发率。硅油取出术后随访3~48个月。结果术后所有患者脉络膜脱离完全复位。术后随访,发现有9例视网膜脱离复发,并在二次手术取出硅油的同时,再次对局限性视网膜脱离进行对应的复位操作处理。术后随访视网膜脱离复发时间为2~20(12.24±2.36)周,初次手术视网膜解剖复位成功率为89.02%(73/82),有79例患者最终复位,复位率96.34%。复发性视网膜脱离患者共计9例,再次接受手术,最终复位6例,在初次手术后4~9(5.16±1.65)个月行硅油取出术。入院时、术后1周及末次随访时的BCVA分别为2.10(2.10,2.18)、1.00(0.80,1.20)、1.00(0.80,1.00),不同时间BCVA比较差异具有统计学意义(χ^(2)=131.12,P<0.001),术后1周(Z=-7.88,P<0.001)及末次随访(Z=-7.94,P<0.001)与术前相比,差异有统计学意义。入院时、术前、术后1周及末次随访眼压分别为8.00(6.00,9.00)、8.00(6.00,9.00)、16.00(13.00,19.25)、16.00(15.00,17.00)mmHg(1 mmHg=0.133 kPa)。不同时间眼压比较差异具有统计学意义(χ^(2)=202.87,P<0.001),入院时与术前(Z=-1.84,P=0.065)、术后与末次随访(Z=-0.58,P=0.564)差异无统计学意义。入院时与术后1周(Z=-7.75,P<0.001)、入院时与末次随访(Z=-7.89,P<0.001)、术前与术后1周(Z=-7.84,P<0.001)、术前与末次随访(Z=-7.88,P<0.001)比较差异具有统计学意义。患者手术后视力有明显改善,眼压较术前提高。结论25 G玻璃体切除联合硅油填充术治疗脉络膜脱离型视网膜脱离,长期随访结果显示视网膜复位率高、并发症少,是较为安全有效的手术方式。

关键词：玻璃体切除术硅油类视网膜脱离脉络膜疾病

Unsupervised social network embedding via adaptive specific mappings

在线全文

学校读者我要写书评

暂无评论

Frontiers of Computer Science 2024年第3期18卷 61-71页

作者： Youming GE Cong HUANG yubao LIU Sen ZHANG Weiyang KONG School of Computer Science and Engineering Sun Yat-Sen UniversityGuangzhou 510275China Guangdong Key Laboratory of Big Data Analysis and Processing Guangzhou 510006China

In this paper,we address the problem of unsuperised social network embedding,which aims to embed network nodes,including node attributes,into a latent low dimensional *** recent methods,the fusion mechanism of node attributes and network structure has been proposed for the problem and achieved impressive prediction ***,the non-linear property of node attributes and network structure is not efficiently fused in existing methods,which is potentially helpful in learning a better network *** this end,in this paper,we propose a novel model called ASM(Adaptive Specific Mapping)based on encoder-decoder *** encoder,we use the kernel mapping to capture the non-linear property of both node attributes and network *** particular,we adopt two feature mapping functions,namely an untrainable function for node attributes and a trainable function for network *** the mapping functions,we obtain the low dimensional feature vectors for node attributes and network structure,***,we design an attention layer to combine the learning of both feature vectors and adaptively learn the node *** encoder,we adopt the component of reconstruction for the training process of learning node attributes and network *** conducted a set of experiments on seven real-world social network *** experimental results verify the effectiveness and efficiency of our method in comparison with state-of-the-art baselines.

关键词： network embedding specific kernel mapping attention mechanism

Development and parentage analysis of SNP markers for Chestnut-vented Nuthatch(Sitta nagaensis)based on ddRAD-seq data

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Avian Research 2024年第2期15卷 271-278页

作者： Qingmiao Yuan Xi Lu Ruixin Mo Xianyin Xu Xu Luo yubao Duan Key Laboratory for Conserving Wildlife with Small Populations in Yunnan Southwest Forestry UniversityKunming 650224China Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of EducationSouthwest Forestry UniversityKunming 650224China Key Laboratory of Forest Disaster Warning and Control of Yunnan Province Southwest Forestry UniversityKunming 650224China College of Forestry Southwest Forestry UniversityKunming 650224China Administration of Zixi Mountain Provincial Nature Reserve Chuxiong 675008China

Extra-pair paternity(EPP)is commonly found in socially monogamous birds,especially in small passerine birds,and there are interspecific and intraspecific variations in the extent of *** Chestnut-vented Nuthatch(Sitta nagaensis)is a socially monogamous passerine bird,and verifying whether this species has EPP relies on parentage *** is not known to have *** this study,we developed SNP markers of this species that are informative for parentage analysis from double digest restriction site-associated DNA sequencing(ddRAD-seq)data.A panel consisting of 50 SNP markers,with a mean heterozygosity of 0.343,was used to resolve 95% of nestlings to *** combined exclusion probabilities for the first parent and second parent were 0.991 and 0.9999,*** panel of SNP markers is a powerful tool for parentage assignments in *** addition,we found that three offspring(7.9%)from three nests(23.1%)were the result of extra-pair fertilization out of 38 offspring in 13 *** study provided information on parentage analysis that has not been reported before in *** also supplemented the understudied EPP behavior of birds in Asia,contributing to a general understanding of the EPP behaviors of birds.

关键词： Chestnut-vented Nuthatch ddRAD sequencing Extra-pair paternity Parentage analysis SNPs

Application of DDG-3300K Liver Reserve Function Analyzer and Relevant Nursing Procedures at the Department of Infectious Diseases

在线全文

学校读者我要写书评

暂无评论

Open Journal of Nursing 2019年第2期9卷 120-124页

作者： Lihua zheng Cheng Hu yubao zheng Qiong Shu Xiang Yin Hongmei Pan Haotong Xu Beiqian Wu Ying Liu Department of Infectious Diseases The Third Affiliated Hospital of Sun Yat-sen University Guangzhou China Department of Urology The Third Affiliated Hospital of Sun Yat-sen University Guangzhou China

Objective: To discuss some key points about nursing in the use of DDG-3300K liver reserve function analyzer in patients at the department of infectious diseases. Method: DDG-3300K liver reserve function analyzer was applied to 5464 patients at the department of infectious diseases. The reasons for failed detection and complications related to the detection were analyzed, and the measures for improving the nursing procedures were proposed. Result: Among the 5464 patients, the detections were successful at the first attempt in 5458 patients;2 patients had leakage of liquid;2 patients were poorly prepared, and 1 case failed because of mistaken selection of CO mode, which led to adverse drug reactions;1 case did not finish the detection due to anaphylactic shock;8 patients had nausea and 6 patients had skin rash on the four limbs and torso during the detection. Conclusion: It is necessary to formulate the nursing procedures for the use of DDG-3300K liver reserve function analyzer. Moreover, preparatory work, health education, refined nursing procedures and skillful operations are closely related to the success rate and accuracy of the detection.

关键词： DDG-3300K Liver Reserve Function Analyzer Liver Function Reserve Indocyanine Green (ICG) Nursing

DynIceData:a gridded ice-water classification dataset at short-time intervals based on observations from multiple satellites over the marginal ice zone

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Big Earth Data 2024年第2期8卷 249-273页

作者： Lin Huang yubao Qiu Yang Li Shuwen Yu Wanyang Zhong Changyong Dou Key Laboratory of Digital Earth Science Aerospace Information Research InstituteChinese Academy of SciencesBeijingChina International Research Center of Big Data for Sustainable Development Goals BeijingChina University of Chinese Academy of Sciences BeijingChina School of Resources and Geosciences China University of Mining and TechnologyXuzhouChina

High-resolution observations of short-term changes in sea ice are critical to understanding ice dynamics and also provide important information used in advice to shipping,especially in the *** individual satellite sensors provide periodic sea ice obser-vations with spatial resolutions of tens of meters,information regarding changes that occur over short time intervals of minutes or hours is *** this study,a gridded ice-water classification dataset with a high temporal resolution was developed based on observations acquired by multiple satellite sensors in the Marginal Ice Zone(MIZ).This dataset-DynIceData-which combines Sentinel-1 Synthetic Aperture Radar(SAR)data with Gaofen-3(GF-3)SAR and SDGSAT-1 thermal infrared imagery was used to obtain observations of the MIZ with a range of temporal resolutions ran-ging from minutes to tens of *** areas of the Arctic covered include the Kara Sea,Beaufort Sea,and Greenland Sea during the period from August 2021 to August ***-oriented segmen-tation and thresholding were used to obtain the ice-water classifi-cation map from Sentinel-1 and GF-3 SAR image pairs and Sentinel-1 SAR and SDGSAT-1 thermal image *** time interval between the images in each pair ranged from 1 minute to 68 ***-kilometer grid sample granules with a spatial resolution of 25 m for the GF-3 SAR data and 30 m for the SDGSAT-1 thermal data were *** classification was verified as having an overall accuracy of at least 95.58%.The DynIceData dataset consists of 7338 samples,which could be used as reference data for further research on rapid changes in sea ice patterns at different short time scales and provide support for research on thermodynamic and dynamic models of sea ice in combination with other environmen-tal data,thus potentially improving the accuracy of sea ice forecast-ing using Artificial *** dataset can be accessed at https://***/10.57760/sciencedb.j00001.00784.

关键词： Sea ice dynamics ice-water classification GF-3 SDGSAT-1 marginal ice zone

Comparison and Verification of Coherent Doppler Wind Lidar and Radiosonde Data in the Beijing Urban Area

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Atmospheric Sciences 2024年第11期41卷 2203-2214页

作者： Zexu LUO Xiaoquan SONG Jiaping YIN Zhichao BU yubao CHEN Yongtao YU Zhenlu ZHANG College of Marine Technology Faculty of Information Science and EngineeringOcean University of ChinaQingdao 266100China Laboratory for Regional Oceanography and Numerical Modeling Laoshan LaboratoryQingdao 266237China Qingdao Leice Transient Technology Co.LTD Qingdao 266100China CMA Meteorological Observation Centre Beijing 100081China Beijing Municipal Meteorological Observation Center Beijing 102600China Qingdao Meteorological Comprehensive Support Center Qingdao 266003China

As a new type of wind field detection equipment, coherent Doppler wind lidar(CDWL) still needs more relevant observation experiments to compare and verify whether it can achieve the accuracy and precision of traditional observation equipment in urban areas. In this experiment, a self-developed CDWL provided four months of observations in the southern Beijing area. After the data acquisition time and height match, the wind profile data obtained based on a Doppler beam swinging(DBS) five-beam inversion algorithm were compared with radiosonde data released from the same location. The standard deviation(SD) of wind speed is 0.8 m s^(–1), and the coefficient of determination R~2 is 0.95. The SD of the wind direction is 17.7° with an R~2 of 0.96. Below the height of the roughness sublayer(about 400 m), the error in wind speed and wind direction is significantly greater than the error above the height of the boundary layer(about 1500 m). For the case of wind speeds less than 4 m s^(–1), the error of wind direction is more significant and is affected by the distribution of surrounding buildings. Averaging at different height levels using suitable time windows can effectively reduce the effects of turbulence and thus reduce the error caused by the different measurement methods of the two devices.

关键词： coherent Doppler wind lidar radiosonde wind measurement urban boundary layer

Cationic surface polarization centers on ionic carbon nitride for efficient solar-driven H_(2)O_(2) production and pollutant abatement

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2024年第10期35卷 383-388页

作者： Zhenyu Hu Zhenchun Yang Shiqi Zeng Kun Wang Lina Li Chun Hu yubao Zhao MOE Key Laboratory for Water Quality and Conservation of the Pearl River Delta Institute of Environmental Research at Greater BayGuangzhou UniversityGuangzhou510006China

Solar-driven H_(2)O_(2)production and emerging organic pollutants(EOPs)elimination are of great significance from the perspective of environmental *** efficiency of the photocatalytic reaction system is the key challenge to be *** this work,the strategy of constructing surface ionic local polarization centers to enhance the exciton dissociation of the polymeric photocatalytic is *** bipyridinium cation(TMAP)is complexed on a K^(+)-incorporated carbon nitride(CNK)framework,and the combination of local polarization centers both on the surface(bipyridinium cation)and bulk(K+cation)contributes to a superior photocatalytic H_(2)O_(2)production performance,affording a remarkable H_(2)O_(2)generation rate of 46.8μmol h^(-1)mg^(-1)and a high apparent quantum yield(AQY)value of 77.5%under irradiation of 405 nm *** substantiated experimentally by steady state/transient spectroscopy techniques,the surface local polarization centers increase the population of the long-lived trapped electrons,and thereby promote the interfacial charge transfer process for chemical conversion *** strategy is potentially applicable to the design of a wide range of efficient solar-to-chemical conversion systems.

关键词： Local polarization Oxygen reductionreaction Hydrogen peroxide production Pollutantdegradation Polymeric carbon nitride