检索结果-南通市图书馆

A wideband,high-resolution vector spectrum analyzer for integrated photonics

light(Science & Applications) 2024年第4期13卷 760-771页

作者： Yi-Han luo Baoqi Shi Wei Sun Ruiyang Chen Sanli Huang Zhongkai Wang Jinbao l.ng Chen Shen Zhichao ye Hairun Guo Junqiu liu International Quantum Academy 518048 ShenzhenChina. Shenzhen Institute for Quantum Science and Engineering Southern University of Science and Technology518055 ShenzhenChina. Department of Optics and Optical Engineering University of Science and Technology of China230026 HefeiChina. Hefei National laboratory University of Science and Technology of China230088 HefeiChina. Qaleido Photonics 518048 ShenzhenChina. Key laboratory of Specialty Fiber Optics and Optical Access Networks Shanghai University200444 ShanghaiChina

The analysis of optical spectra—emission or absorption—has been arguably the most powerful approach for discovering and understanding *** invention and development of many kinds of spectrometers have equipped us with versatile yet ultra-sensitive diagnostic tools for trace gas detection,isotope analysis,and resolving hyperfine structures of atoms and *** proliferating data and information,urgent and demanding requirements have been placed today on spectrum analysis with ever-increasing spectral bandwidth and frequency *** requirements are especially stringent for broadband laser sources that carry massive information and for dispersive devices used in information processing *** addition,spectrum analyzers are expected to probe the device’s phase response where extra information is *** we demonstrate a novel vector spectrum analyzer(VSA)that is capable of characterizing passive devices and active laser sources in one *** a dual-mode VSA can measure loss,phase response,and dispersion properties of passive *** also can coherently map a broadband laser spectrum into the RF *** VSA features a bandwidth of 55.1 THz(1260–1640 nm),a frequency resolution of 471 kHz,and a dynamic range of 56 ***,our fiber-based VSA is compact and *** requires neither high-speed modulators and photodetectors nor any active feedback ***,we employ our VSA for applications including characterization of integrated dispersive waveguides,mapping frequency comb spectra,and coherent light detection and ranging(liDAR).Our VSA presents an innovative approach for device analysis and laser spectroscopy,and can play a critical role in future photonic systems and applications for sensing,communication,imaging,and quantum information processing.

关键词： spectrum resolution coherent

来源：

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

Enhanced carbon capture with motif-rich amino acid loaded defective robust metal-organic frameworks

引用

Nano Research 2024年第3期17卷 2004-2010页

作者： Qi-ye Ju Jia-Jia Zheng li Xu Hai-Yan Jiang Zi-Qian Xue lu Bai Yang-Yang Guo Ming-Shui Yao Ting-Yu Zhu State Key laboratory of Multi-phase Complex Systems CAS Key Laboratory of Green Process and EngineeringBeijing Key Laboratory of Ionic Liquids Clean ProcessInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China laboratory of Theoretical and Computational Nanoscience National Center for Nanoscience and TechnologyChinese Academy of SciencesBeijing 100190China School of Rare Earths University of Science and Technology of ChinaHefei 230026China Ganjiang Innovation Academy Chinese Academy of SciencesGanzhou 341000China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China Institute for Integrated Cell-Material Sciences Kyoto UniversityInstitute for Advanced StudyKyoto UniversityYoshidaUshinomiya-choSakyokuKyoto 606-8501Japan

The use of metal-organic frameworks(MOFs)as solid adsorption materials for carbon capture is promising,but achieving efficient and reversible adsorption with a balance of capacity and selectivity for carbon dioxide(CO_(2))over N_(2) remains a *** take full advantage of the strong channel traffic and robustness of MOFs with relatively small pores,it is highly necessary to employ a defect-engineering strategy to construct a broader channel structure that can facilitate the loading of functional motif-rich amino acids(AAs).This strategy can greatly enhance the CO_(2) adsorption performance of *** this study,motif-rich amino acids are loaded into the defective and robust porous frameworks via combined defect-engineering and post-synthetic *** defective Zr/Hf-MOF-808s modified with AAs,especially for the 18 mol%4-nitroisophthalic acid,generated defective products allowing for the loading of l-serine(l-Ser).This modification resulted in a significant improvement in both the adsorption capacity(248%improvement at 298 K,100 kPa)and the selectivity of CO_(2)/N_(2) using the ideal adsorbed solution theory(IAST),with the selectivity increasing to 120.55 and 38.27 at 15 and 100 kPa,respectively,while maintaining good cycl.ng *** functional theory(DFT)simulation,CO_(2) temperature-programmed desorption(CO_(2)-TPD),and in situ Fourier transform infrared spectroscopy(FTIR)were further employed to have a better understanding of the enhanced CO_(2) adsorption ***,unlike the AAs loaded pristine MOF-808s that showed the best CO_(2) adsorption capacity with the loading of short and small glycine(Gly),the broadened channel size in our work enables the loading of functional motif-rich l-serine,which brings more active binding sites,improving CO_(2) adsorption.

关键词： carbon capture and storage metal-organic framework(MOF) amino acids(AAs) defect-engineering motif-rich

来源：

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

Chlorantraniliprole exposure aggravates high-fat diet-induced metabolic disorders in mice by regulating gut microbiota and its metabolites

引用

Food Science and Human Wellness 2024年

作者： Ting Gu Jie lin Jiani Yang William Mumby Quancai Sun ye Peng Faculty of Medicine Macau University of Science and Technology School of Food and Biological Engineering Jiangsu University Department of Health Nutrition and Food Sciences Florida State University

Food contaminants， particularly insecticides， are important factors contributing to obesity and other adverse effects. As the most widely used diamide insecticide worldwide， chlorantraniliprole (CP) is ubiquitous in food and the environment. However， the influence of CP on obesity and the gut microbiota remains unknown. In this study， we administered CP/carboxymethyl cellulose sodium to C57Bl/6J mice with a high-fat diet (HFD) via gavage for 13 weeks. The CP exposure induced significant increases in body weight gain， fat mass， serum total cholesterol (TC)， and low-density lipoprotein cholesterol (lDl-C). Moreover， CP aggravated the imbalance in the gut microbiota by increasing the relative abundance of obesity-associated bacteria and reducing the relative abundance of beneficial bacteria. Based on untargeted metabolomics analysis， CP was found to be involved in the regulation of pathways including ‘alanine， aspartate and glutamate metabolism’ and ‘arginine and proline metabolism’. Notably， CP exposure primarily induced alterations in microbial metabolites within these pathways， such as l-(+)-aspartic acid and l-glutamic acid. Additionally， individual metabolites， such as the lipid mediator (oleoyl ethanolamide)， also demonstrated alterations upon CP exposure. Furthermore， Spearman correlation analysis revealed several noteworthy associations between microbial alterations， metabolite changes， and phenotypes. The results of the study demonstrate a connection between microbiota， metabolites， and the effects of CP exposure on HFD-induced obesity， elucidating the critical role of the gut microbiota and its metabolites in the toxic effects of CP.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

DNA framework signal amplification platform-based highthroughput systemic immune monitoring

引用

Signal Transduction and Targeted Therapy 2024年第3期9卷 1115-1131页

作者： ye Chen Xingyu Chen Bowen Zhang Yuxin Zhang Songhang li Zhiqiang liu Yang Gao Yuxuan Zhao lin Yan Yi li Taoran Tian Yunfeng lin State Key laboratory of Oral Diseases National Center for StomatologyNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengdu 610041 SichuanPR China Department of Prosthodontics Tianjin Stomatological HospitalSchool of MedicineNankai UniversityTianjin 300041PR China Department of laboratory Medicine West China HospitalSichuan UniversityChengdu 610041 SichuanPR China Sichuan Provincial Engineering Research Center of Oral Biomaterials Chengdu 610041 SichuanChina

Systemic immune monitoring is a crucial clinical tool for disease early diagnosis,prognosis and treatment planning by quantitative analysis of immune ***,conventional immune monitoring using flow cytometry faces huge chall.nges in large-scale sample testing,especially in mass health screenings,because of time-consuming,technical-sensitive and high-cost ***,the lack of high-performance detection platforms hinders the development of high-throughput immune monitoring *** address this bottleneck,we constructed a generally applicable DNA framework signal amplification platform(DSAP)based on post-systematic evolution of ligands by exponential enrichment and DNA tetrahedral framework-structured probe design to achieve high-sensitive detection for diverse immune cells,including CD4+,CD8+T-lymphocytes,and monocytes(down to 1/100μl).Based on this advanced detection platform,we present a novel high-throughput immune-cell phenotyping system,DSAP,achieving 30-min one-step immune-cell phenotyping without cell washing and subset analysis and showing comparable accuracy with flow cytometry while significantly reducing detection time and *** a proof-of-concept,DSAP demonstrates excellent diagnostic accuracy in immunodeficiency staging for 107 HIV patients(AUC>0.97)within 30 min,which can be applied in HIV infection monitoring and ***,we initially introduced promising DSAP to achieve high-throughput immune monitoring and open robust routes for point-of-care device development.

关键词： diagnosis monitoring initially

来源：

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

Gut microbiota induced abnormal amino acids and their correlation with diabetic retinopathy

引用

International Journal of Ophthalmology(English edition) 2024年第5期17卷 883-895页

作者： Sheng-Qun Jiang Su-Na ye Yin-Hua Huang Yi-Wen Ou Ke-Yang Chen Jian-Su Chen Shi-Bo Tang Aier Eye Hospital Jinan UniversityGuangzhou 510000Guangdong ProvinceChina Aier Eye Institute and Changsha Aier Hospital Changsha 410000Hunan ProvinceChina The First Affiliated Hospital of Bengbu Medical University Bengbu 233000Anhui ProvinceChina School of Public Health Anhui Medical UniversityHefei 230000Anhui ProvinceChina

AIM:To explore the correlation of gut microbiota and the metabolites with the progression of diabetic retinopathy(DR)and provide a novel strategy to elucidate the pathological mechanism of ***:The fecal samples from 32 type 2 diabetes patients with proliferative retinopathy(PDR),23 with nonproliferative retinopathy(NPDR),27 without retinopathy(DM),and 29 from the sex-,age-and BMI-matched healthy controls(29 HC)were analyzed by 16S rDNA gene *** fecal samples from PDR,DM,and HC groups were assayed by untargeted *** metabolites were measured using liquid chromatographymass spectrometry(lC-MS)*** between gut microbiota and fecal metabolites were ***:A cluster of 2 microbiome and 12 metabolites accompanied with the severity of DR,and the close correlation of the disease progression with PDR-related microbiome and metabolites were *** be specific,the structure of gut microbiota differed in four *** and richness of gut microbiota were significantly lower in PDR and NPDR groups,than those in DM and HC groups.A cluster of microbiome enriched in PDR group,including Pseudomonas,Ruminococcaceae-UCG-002,Ruminococcaceae-UCG-005,Christensenellaceae-R-7,was *** analysis showed that the glucose and nicotinate degradations were significantly higher in PDR group than those in HC ***,serine,ornithine,and arachidonic acid were significantly enriched in PDR group,while proline was enriched in HC *** analysis illustrated that arginine biosynthesis,lysine degradation,histidine catabolism,central carbon catabolism in cancer,D-arginine and D-ornithine catabolism were elevated in PDR *** analysis revealed that Ruminococcaceae-UCG-002 and Christensenellaceae-R-7 were positively associated with l-arginine,ornithine levels in fecal ***:This study elaborates the different microbiota structure in the gut from four *** relative abundance of

关键词： proliferative retinopathy gut microbiota Ruminococcaceae amino acid metabolism arginine

来源：

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

超声纳米晶表面改性对选区激光熔化316l不锈钢微观结构和力学性能的影响

引用

表面技术 2024年第5期53卷 137-148页

作者：彭兰张宇高乐叶一璇叶畅华中科技大学武汉430074

目的改善选区激光熔化(Selective laser melting,SlM)316l不锈钢的表面完整性和力学性能。方法采用超声纳米晶表面改性(Ultrasonic Nanocrystal Surface Modification,UNSM)这一新兴表面塑性变形方法对SlM 316l不锈钢进行超声冲击强化,... 详细信息

目的改善选区激光熔化(Selective laser melting,SlM)316l不锈钢的表面完整性和力学性能。方法采用超声纳米晶表面改性(Ultrasonic Nanocrystal Surface Modification,UNSM)这一新兴表面塑性变形方法对SlM 316l不锈钢进行超声冲击强化,利用维氏硬度计、扫描电镜、白光干涉仪、EBSD、XRD等对处理前后材料的表面完整性、微观组织演变和塑性变形行为进行表征和分析。结果经过UNSM处理后,SlM 316l不锈钢的微观缺陷明显减少,初始未熔合孔隙发生闭合,表面粗糙度Ra由5.374μm降至0.510μm,表面硬度从230HV增至461.16HV;同时,材料表层发生了剧烈的塑性变形,形变诱导材料微观组织从γ相向α相转变,微观结构由初始不规则柱状粗晶转变为等轴状细晶。从EBSD表征结果可知,在材料表面形成了深度约为20μm的梯度纳米晶,材料内部存在明显的不均匀变形;与初始SlM试样相比,通过UNSM处理在材料表面引入了最大为932 MPa的残余压应力。结论超声纳米晶表面改性能够显著改善SlM 316l不锈钢的表面完整性,形成较深的晶粒细化层和残余应力硬化层,从而有效提高其耐腐蚀性和疲劳抗性,是一项有前景的SlM后处理技术。

关键词：超声纳米晶表面改性 SlM 316l不锈钢微观结构残余应力塑性变形机理

来源：

维普期刊数据库

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

Association of total bilirubin with depression risk in adults with diabetes:A cross-sectional study

引用

World Journal of Clinical Cases 2024年第18期12卷 3428-3437页

作者： Man-li ye Jie-Ke Wang Department of laboratory Medicine The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityWenzhou 325000Zhejiang ProvinceChina Department of Hand and Plastic Surgery The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityWenzhou 325000Zhejiang ProvinceChina

BACKGROUND Individuals with diabetes mellitus are more likely to experience depression,although most patients remain *** relation between total bilirubin and depression has been increasingly discussed,but limited studies have examined the association of total bilirubin with depression risk in adults with diabetes,which warrants *** To investigate the association between total bilirubin levels and the risk of depression in adults with *** The study included adults with diabetes from the National Health and Nutrition Examination Survey *** was determined using the Patient Health *** logistic regression,propensity scorematched analysis and restricted cubic spline models were utilized to investigate the association between total bilirubin levels and depression risk in adults with *** The study included 4758 adults with diabetes,of whom 602(12.7%)were diagnosed with *** adjusting for covariates,we found that diabetic adults with lower total bilirubin levels had a higher risk of depression(OR=1.230,95%CI:1.006-1.503,P=0.043).This association was further confirmed after propensity score matching(OR=1.303,95%CI:1.034-1.641,P=0.025).Subgroup analyses showed no significant dependence of age,body mass index,sex,race or hypertension on this *** cubic spline models displayed an inverted U-shaped association of total bilirubin levels with depression risk within the lower range of total bilirubin *** depression risk heightened with the increasing levels of total bilirubin,reaching the highest risk at 6.81μmol/l and decreasing *** In adults with diabetes,those with lower levels of total bilirubin were more likely to have depressive *** total bilirubin levels may be used as an additional indicator to assess depression risk in adults with diabetes.

关键词： Depression Total bilirubin Diabetes National health and nutrition examination survey Mental health Patient health questionnaire-9

来源：

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

COVID-19/Tuberculosis Co-Infection at the Epidemic Treatment Center (ETC) of Saint-louis (Senegal): About 9 Cases

引用

Advances in Infectious Diseases 2024年第1期14卷 56-66页

作者： Alassane Dièye Moustapha Diedhiou Papa latyr Junior Diouf Mba Bambo Diakhaby Demba Makalou Samba Niang Diatou Dia-Gueye Amadou Diop Dia Ibrahima louis Martin Dieng Seynabou lô Ndéye Méry Dia-Badiane Health Sciences Training and Research Unit Gaston Berger University Saint-Louis Senegal Department of Medicine Saint-Louis Regional Hospital Saint-Louis Senegal Infectious and Tropical Diseases Clinic of Fann Dakar Senegal

Introduction: COVID-19 is a global public health emergency that can cause acute respiratory distress syndrome. In countries where tuberculosis (TB) is endemic, coinfection of COVID-19 and TB is often encountered, which increases the risk of developing severe forms of COVID-19. Objectives: The aim of this study was to determine the prevalence of COVID-19/TB coinfection at the Epidemic treatment center (ETC) in Saint-louis (Senegal) and to describe the epidemiological, clinical, paraclinical, and outcome profile of co-infected patients. Patients and Methods: This is a retrospective, cross-sectional, descriptive cohort study based on the records of COVID-19/ TB co-infected patients who were hospitalized at the ETC in Saint-louis (Senegal) over an 18-month period from March 2020 to September 2021. Results: Out of a total of 454 hospitalizations, we collected records of 9 patients co-infected with COVID-19/TB, resulting in a prevalence of 2%. The study included patients with a median age of 34 years (range: 10-86 years), with a male predominance (7 cases) and a sex ratio of 3.5. The majority of patients (88.9%) had severe forms of COVID-19. Dyspnea and cough were reported in all patients (100%). Pulmonary TB was the most frequent localization, with 9 cases. The diagnosis of COVID-19 was confirmed by nasopharyngeal PCR in all patients (100%). Bacilloscopy was positive in 3 out of 5 cases. One patient tested positive for GeneXpert? MTB/RIF without rifampicin resistance. All patients were prescribed the hydroxychloroquine-azithromycin combination and anti-tuberculosis treatment. Out of the nine patients, four recovered (44.4%) and five died (55.5%). Conclusion: COVID-19/TB coinfection had a low prevalence in our cohort, but was associated with a high mortality due to the frequent occurrence of severe forms of the disease.

关键词： COVID-19 Tuberculosis Saint-louis Senegal

来源：

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

Profile of SARS-CoV-2 Infected Patients Hospitalized at the Epidemic Treatment Center (ETC) in Saint-louis, Senegal during the First Two Waves

引用

Advances in Infectious Diseases 2024年第2期14卷 322-337页

作者： Alassane Dièye Papa latyr Junior Diouf Bourama Diémé Moustapha Diedhiou Diatou Dia-Gueye Amadou Diop Dia Samba Niang Ibrahima louis Martin Dieng Ameth Dieng Seynabou lô Ndéye Méry Dia-Badiane Health Sciences Training and Research Unit Gaston Berger University Saint-Louis Senegal Emergency Department of Regional Hospital Center Saint-Louis Senegal Department of Infectious and Tropical Diseases of Fann Dakar Senegal

Introduction: The SARS-CoV-2 infection is a major public health emergency. Several risk factors are involved in the occurrence of respiratory distress that can lead to death despite resuscitation measures. Objectives: The aim of this study was to describe the epidemiological, clinical, paraclinical, therapeutic, and evolution profile of patients infected with SARS-CoV-2 hospitalized at the CTE of Saint-louis (Senegal) during the first two waves. Patients and Methods: We conducted a retrospective, cross-sectional, descriptive, and analytical study that included all patients hospitalized at the ETC of Saint-louis (Senegal) with SARS-CoV-2 infection from March 2020 to April 2021. Results: A total of 358 cases were collected, 256 (71.5%) during the first wave and 102 (28.5%) during the second wave. The mean age was 49.5 years (19.5). There was a male predominance (58.4%), with a sex ratio of 1.4. Hypertension was the main comorbidity, with 87 cases (24.3%). The most common functional signs were cough in 194 cases (54.2%), dyspnea in 143 cases (40%) and ageusia in 134 cases (37.4%). Thoracic CT scans were performed on 20 patients (5.6%), with severe involvement (50% - 75%) observed in 50% of cases. Hydroxychloroquine-azithromycin was prescribed to 351 patients (98%). Overall, 338 (94.4%) recovered and 17 (4.7%) died. In multivariate analysis, factors associated with death were male sex [OR = 2.645;95% CI: 1.530 - 4.785;p = 0.011], age 60 years [OR = 1.039;95% CI: 0.564 - 1.914;p = 0.002], the presence of comorbidities [OR = 2.171;95% CI: 0.564 - 3.429;p = 0.033], SpO2 (ambient air) 95% [OR = 2.061;95% CI: 0.616 - 3.827;p = 0.03], acute respiratory distress syndrome (ARDS) [OR = 0.635;95% CI: 0.316 - 1.275;p = 0.001], severe form [OR = 1.664;95% CI: 0.298 - 2.478;p = 0.016], occurrence of complications [OR = 0.521;95% CI: 0.287 - 0.944;p = 0.032], high creatinine levels [OR = 2.061;95% CI: 1.616 - 3.827;p = 0.026], and lymphopenia [OR = 0.485;95% CI: 0.370 - 0.636;p = 0.0

关键词： SARS-CoV-2 Saint-louis Senegal

来源：

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

A New Micropropagation Technology of Tilia amurensis:In VitroMicropropagation of Mature Zygotic Embryos and the Establishment of a PlantRegeneration System

引用

Phyton-International Journal of Experimental Botany 2024年第2期93卷 277-289页

作者： Shijie lin Zimo Wang Hongbo Zhu Conghui Wang Hongfeng Wang Dawei Zhang Tianbing Gou Guangdao Bao ye luo Huaijiang He Zhonghui Zhang Jilin Provincial Academy of Forestry Sciences(Jilin Forestry Biological Control Central Station) Changchun130033China Institute of Forestry Inventory and Planning of Jilin Province Changchun130022China Jilin Forest Tree and Seeding Management Station Changchun130022China

Tilia amurensis is an economically valuable broadleaf tree species in Northeast *** production of *** varieties at commercial scales has been greatly limited by the low germination *** thus a pressing need to develop an organogenesis protocol for in vitro propagation of *** to alleviate ashortage of high-quality *** ***,we established a rapid in vitro propagation system *** from mature zygotic embryos and analyzed the effects of plant growth regulators and culture mediain different *** found that Woody plant medium(WPM)was the optimal primary culture medium formature zygotic *** highest callus induction percentage(68.76%)and number of axillary buds induced(3.2)were obtained in WPM+0.89μmol/l 6-benzyladenine(6-BA)+0.46μmol/l kinetin(KT)+0.25μmol/lindole-3-butryic acid(IBA)+1.44μmol/l gibberellin A_(3)(GA_(3)).The multiple shoot bud development achievedthe highest percentage(83.32%)in the Murashige and Skoog(MS)+2.22μmol/l 6-BA+0.25μmol/l IBA+1.44μmol/l GA_(3).The rooting percentage(96.70%)was highest in 1/2 MS medium+1.48μmol/l *** percentage of transplanting plantlets was 82.22%in soil:vermiculite:perlite(5:3:1).Our study is the firstto establish an effective organogenesis protocol for *** using mature zygotic embryos.

关键词： Tilia amurensis Rupr. mature zygotic embryo micropropagation adventitious bud multiplication rooting

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：