检索结果-南通市图书馆

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

采用双重交换表示分离的任意说话人语音转换

电子学报 2024年第6期52卷 2141-2150页

作者：章子旭简志华杭州电子科技大学通信工程学院浙江杭州310018

在任意说话人语音转换中,训练阶段通常采用编码器对同一说话人语音进行解耦,然后用解码器进行自重构,而转换阶段的解码器是对源语音的内容信息与目标语音的个性特征进行耦合,因此解码器在转换阶段与训练阶段会存在性能失配现象,影响语... 详细信息

在任意说话人语音转换中,训练阶段通常采用编码器对同一说话人语音进行解耦,然后用解码器进行自重构,而转换阶段的解码器是对源语音的内容信息与目标语音的个性特征进行耦合,因此解码器在转换阶段与训练阶段会存在性能失配现象,影响语音转换性能.对此提出了一种采用双重交换表示分离的语音转换方法DERS-VC(Double Exchange Representation Separation Voice Conversion).该方法在训练阶段的自重构过程中,用同一说话人的语音模拟不同说话人的语音进行自监督训练.训练过程引入转换不变损失和周期循环一致损失,通过双重交换表示分离的循环过程使自重构语音与原始语音更加逼近.实验结果表明,DERS-VC算法在梅尔倒谱距离(Mel-Cepstral Distortion,MCD)上比现有的AGAIN-VC(Activation Guidance and Adaptive Instance Normalization Voice Conversion)转换方法平均降低了4.03%,平均意见分(Mean Opinion Score,MOS)提升了3.62%,转换语音质量和相似度都有提高.这说明,通过双重交换表示分离的方法可以更好地训练解码器,实现更好性能的任意说话人之间的语音转换.

关键词：语音转换任意说话人双重交换表示分离

Research paper Air atmosphere available fast one-pot synthesis of VO_(2)nanoparticles with excellent thermochromic properties by a novel liquid-shielding method

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Materiomics 2024年第1期10卷 17-26页

作者： zhi Cao jin Li Chunhui Zhang Ke jiao Yunxiang Chen Yifei Liu Xinghui Hou Haipeng ji Liying Zhang Shasha Yi Yu Wang Zhang Chen Yanfeng Gao Zongtao Zhang School of Materials Science and Engineering Zhengzhou UniversityKexue Ave 100Zhengzhou450001China School of Materials Science and Engineering Shanghai UniversityShangda Rd 99Shanghai200444China

As a typical strongly correlated transition oxide,vanadium dioxide(VO_(2))based nanomaterials have drawn many research attentions these years due to the giant metal-to-insulator phase transition(MIPT)at around 68℃.However,due to the complexities of the V-O system and interplays between various vanadium oxide phases,the synthesis of high-quality VO_(2)nanopowders is still fraught with many challenges,especially in air *** this paper,we report a novel air atmosphere available liquid-shielding synthesis method for thermochromic VO_(2)nanoparticles,by using low-eutectic molten-salt(LiCl-KCl)as the liquid-state air-insulation medium at elevated temperature and high-pressure pressed VOSO_(4)-KCl pillars immersed in these liquid salts as the *** amounts of glucose are added to introduce a slight reductive environment,and well dispersed VO_(2)nanoparticles with excellent ther-mochromic properties can be directly synthesized at an ultra-low temperature of 375℃.This feasible and atmosphere-available mass-production method is rarely reported in the related fields,which may provide a novel protocol strategy for the synthesis of high performance thermochromic VO_(2)and other functional oxide powders.

关键词： Vanadium dioxide Nanoparticle Molten salt Liquid shielding Thermochromic properties

Laser-rewritable room temperature phosphorescence based on in-situ polymerized tartaric acid

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistry 2024年第9期67卷 3029-3038页

作者： Tuo-Yu Zhou Tai-Wen Li Hai-Fu Zhang Rui-Lin Chai Qian Zhao Penglin Zhang Guang-Yue Li Qian-Wen Wang Chang Li Yu Shu zhi Fan Sheng-hua Li College of Chemical Engineering and Materials Science College of SciencesTianjin University of Science&TechnologyTianjin 300457China College of Chemical Engineering North China University of Science and TechnologyTangshan 063210China Tianjin Key Laboratory of Multiplexed Identification for Port Hazardous Chemicals Tianjin University of Science&TechnologyTianjin 300457China

Organic room temperature phosphorescence(RTP)materials have potential applications in information technology and ***,the precise control of the afterglow in reversible manners remains challenging for organic ***,we report a kind of organic RTP material fabricated by simple heating mixtures of tartaric acid(TA)and aromatic acids,which can switch their phosphorescence by *** mixtures show tunable phosphorescence from indigo to orange with phosphorescence efficiency of up to 53.99% due to locking different organic luminogens by the TA-formed matrix through the noncovalent *** afterglow of those materials lasts a few seconds and disappears by water fumigation,which can be repeated in response to wet/heat *** drop-casting those materials on glass slides,a laser-repatternable phosphorescence is achieved by facile laser direct writing and quenched by water *** results open the opportunity for the design of smart stimuli-responsive phosphorescence materials from sustainable natural products.

关键词： room temperature phosphorescence tunable afterglows tartaric acid laser direct writing stimuli-response

Long-term tadalafil once daily in Chinese men with erectile dysfunction:a 2-year final analysis of a post-marketing,multicenter,randomized,open-label trial

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2024年第3期26卷 282-287页

作者： Hui jiang Lian-Ming Zhao Su Yan ji-Hong Liu Zhao-Hui Zhu jin-Dan Luo Yu-Tian Dai Fu-Biao Li Hao-Cheng Lin zhi-Chao Zhang Department of Urology Peking University First HospitalBeijing 100000China Department of Urology Peking University Third HospitalBeijing 100191China Department of Urology Peking Union Medical College HospitalBeijing 100730China Department of Urology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Urology Union Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Department of Urology The First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Departmentof Andrology Nanjing Drum Tower HospitalNanjing 210008China Department of Andrology The First Hospital of Jilin UniversityChangchun 130021China Andrology Center Department of UrologyPeking University First HospitalBeijing 100034China

The long-term safety and effectiveness of once-daily tadalafil is crucial,but limited data are available in Chinese patients witherectile dysfunction(ED).In this post-marketing,multicenter,randomized,open-label trial with 2-year follow-up,635 ED caseswere randomized to receive daily oral tadalafil 2.5 mg or 5 mg for 3 months,of whom 580 continued once-daily tadalafil 5 mg for21 ***-emergent adverse events in the 12-month and 24-month period were similar,with the most common beingviral upper respiratory tract infection,upper respiratory tract infection,and *** improvement from baseline inthe International Index of Erectile Function-Erectile Function(IIEF-EF)score was detected at month 12(least squares mean[LSM]change:7.9,95%confidence interval[CI]:7.5–8.4,P<0.001)and was maintained to month 24(LSM change:8.6,95%CI:8.1–9.0,P<0.001).The proportions of patients regaining normal erectile function(IIEF-EF score≥26)were 43.7%and 48.0%at months 12 and 24,*** Assessment Questionnaire results showed improved erection function in 97.5%ofpatients and improved ability to engage in sexual activity in 95.9%of patients at month 12;these values were 96.1%and 95.0%at month 24,*** quality of sexual life score based on the Sexual Life Quality Questionnaire(SLQQ)was increased by52.2%at month 12 and by 55.3%at month 24(both P<0.001).The treatment satisfaction score determined by SLQQ(mean±standard deviation)was 62.4±21.0 at month 12 versus 65.9±20.2 at month ***-year daily application of tadalafil 5mg in Chinese men with ED showed a favorable safety profile and durable improvement in sexual performance and satisfaction.

关键词： clinical trial erectile dysfunction long-term safety once-daily dosing tadalafil

Combining prognostic value of serum carbohydrate antigen 19-9 and tumor size reduction ratio in pancreatic ductal adenocarcinoma

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Oncology 2024年第3期16卷 798-809页

作者： Dong-Qin Xia Yong Zhou Shuang Yang Fang-Fei Li Li-Ya Tian Yan-hua Li Hai-Yan Xu Cai-zhi Xiao Wei Wang Oncology Treatment Center of Traditional Chinese Medicine Chongqing University Cancer HospitalChongqing 400030China Department of Oncology Chongqing Weisiteng Biotech Translational Research InstituteChongqing 430039China Chongqing Key Laboratory on Big Data for Bio Intelligence Chongqing University of Posts and TelecommunicationsChongqing 430065China

BACKGROUND Pancreatic ductal adenocarcinoma(PDAC)is a common cancer with increasing morbidity and mortality due to changes of social *** To evaluate the significance of serum carbohydrate antigen 19-9(CA19-9)and tumor size changes pre-and post-neoadjuvant therapy(NAT).METHODS This retrospective study was conducted at the Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment,Chongqing University Cancer *** study specifically assessed CA19-9 levels and tumor size before and after *** A total of 156 patients who completed NAT and subsequently underwent tumor resection were included in this *** average age was 65.4±10.6 years and 72(46.2%)patients were *** survival analysis,we defined the post-NAT serum CA19-9 level/pre-NAT serum CA19-9 level as the CA19-9 ratio(CR).The patients were divided into three groups:CR0.5 and*** regard to tumor size measured by both computed tomography and magnetic resonance imaging,we defined the post-NAT tumor size/pre-NAT tumor size as the tumor size ratio(TR).The patients were then divided into three groups:TR0.5 and*** on these groups divided according to CR and TR,we performed both overall survival(OS)and disease-free survival(DFS)***-rank tests showed that both OS and DFS were significantly different among the groups according to CR and TR(P<0.05).CR and TR after NAT were associated with increased odds of achieving a complete or near-complete pathologic ***,CR(hazard ratio:1.721,95%CI:1.373-3.762;P=0.006),and TR(hazard ratio:1.435,95%CI:1.275-4.363;P=0.014)were identified as independent factors associated with *** This study demonstrated that post-NAT serum CA19-9 level/pre-NAT serum CA19-9 level and post-NAT tumor size/pre-NAT tumor size were independent factors associated with OS in patients with PDAC who received NAT and subsequent surgical resection.

关键词： Pancreatic ductal adenocarcinoma Carbohydrate antigen 19-9 Tumor size Pathologic response Biomarkers

Severe pediatric COVID‑19:a review from the clinical and immunopathophysiological perspectives

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Pediatrics 2024年第4期20卷 307-324页

作者： Yi‑Kan Sun Can Wang Pei‑Quan Lin Lei Hu jing Ye zhi‑Gang Gao Ru Lin Hao‑Min Li Qiang Shu Li‑Su huang Lin‑hua Tan Children's Hospital Zhejiang University School of MedicineHangzhou 310052China The Second Affiliated Hospital Zhejiang University School of MedicineHangzhou 310030China Surgical Intensive Care Unit Children’s HospitalZhejiang University School of MedicineHangzhou 310052China Department of General Surgery Children’s HospitalZhejiang University School of MedicineHangzhou 310052China Department of Cardiopulmonary and Extracorporeal Life Support Children’s HospitalZhejiang University School of MedicineHangzhou 310052China Clinical Data Center Children’s HospitalZhejiang University School of MedicineHangzhou 310052China Department of Cardiac Surgery Children’s HospitalZhejiang University School of MedicineHangzhou 310052China National Clinical Research Center for Child Health Children’s HospitalZhejiang University School of MedicineHangzhou 310052China Department of Infectious Diseases Children’s HospitalZhejiang University School of MedicineHangzhou 310052China

Background Coronavirus disease 2019(COVID-19)tends to have mild presentations in ***,severe and critical cases do arise in the pediatric population with debilitating systemic impacts and can be fatal at times,meriting further attention from ***,the intricate interactions between the pathogen virulence factors and host defense mechanisms are believed to play indispensable roles in severe COVID-19 pathophysiology but remain incompletely *** sources A comprehensive literature review was conducted for pertinent publications by reviewers independently using the PubMed,Embase,and Wanfang *** keywords included“COVID-19 in children”,“severe pediatric COVID-19”,and“critical illness in children with COVID-19”.Results Risks of developing severe COVID-19 in children escalate with increasing numbers of co-morbidities and an unvaccinated *** respiratory distress stress and necrotizing pneumonia are prominent pulmonary manifestations,while various forms of cardiovascular and neurological involvement may also be *** immunological processes are implicated in the host response to COVID-19 including the type I interferon and inflammasome pathways,whose dysregulation in severe and critical diseases translates into adverse clinical *** inflammatory syndrome in children(MIS-C),a potentially life-threatening immune-mediated condition chronologically associated with COVID-19 exposure,denotes another scientific and clinical conundrum that exemplifies the complexity of pediatric *** the considerable dissimilarities between the pediatric and adult immune systems,clinical trials dedicated to children are lacking and current management recommendations are largely adapted from adult *** Severe pediatric COVID-19 can affect multiple organ *** dysregulated immune pathways in severe COVID-19 shape the disease course,epitomize the vast functional diversity of the

关键词： Immunopathophysiology MIS-C Pediatric critical care Severe pediatric COVID-19

Effect of electroacupuncture combined with rehabilitation techniques on shoulder function in patients with rotator cuff injuries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第21期12卷 4582-4589页

作者： zhi-Ying Chen Meng-hua Wang Zhong Ye Department of Rehabilitation The People's Hospital of YuhuanYuhuan 317600Zhejiang ProvinceChina Department of Rehabilitation Medicine Yuhuan Hospital of Traditional Chinese MedicineYuhuan 317600Zhejiang ProvinceChina

BACKGROUND The rotator cuff is located below the acromion and deltoid muscles and comprises multiple tendons that wrap around the humeral head,maintaining shoulder joint *** To explore the effect of electroacupuncture combined with rehabilitation techniques on shoulder function in patients with rotator cuff *** We selected 97 patients with rotator cuff injuries treated in the People's Hospital of Yuhuan from February 2020 to May *** were grouped using the envelope *** After treatment,the study group’s treatment effective rate was 94.90%(46/49 patients),significantly higher than that in the control group(79.17%,38/48 cases;P0.05).Compared with those before treatment,the CMS scores(including pain,daily living ability,shoulder mobility,and muscle strength),all aspects of shoulder mobility(forward flexion,posterior extension,external rotation,internal rotation),and SF-36 scale scores(including physiological,psychological,emotional,physical,vitality,and health status)were higher in both groups after treatment and significantly higher in the study group(P0.05).CONCLUSION Electroacupuncture combined with rehabilitation techniques has a good treatment effect on patients with rotator cuff injuries,helps accelerate the recovery of shoulder function,improves the quality of life,and is highly safe.

关键词： Electroacupuncture therapy Rehabilitation technique Rotator cuff injury Shoulder joint function

Probing the Gamma-Ray Emission Region of Five TeV Flat Spectrum Radio Quasars

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2024年第6期24卷 156-169页

作者： Hu-Bing Xiao Hai-Tao Cao Rui Xue jin-Ting Cai Ge-Ge Wang Marina Manganaro Shao-hua Zhang zhi-Hao Ouyang Li-Ping Fu Jun-Hui Fan Shanghai Key Lab for Astrophysics Shanghai Normal UniversityShanghai 200234China School of Information Engineering Guangzhou Panyu PolytechnicGuangzhou 511483China Department of Physics Zhejiang Normal UniversityJinhua 321004China College of Mathematics and Physics Guangxi Minzu UniversityNanning 530006China Key Laboratory of Cosmology and Astrophysics(Liaoning) College of SciencesNortheastern UniversityShenyang 110819China Department of Physics University of RijekaRijeka 51000Croatia Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Key Laboratory for Astronomical Observation and Technology of Guangzhou Guangzhou 510006China Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province Guangzhou 510006China

The location ofγ-ray emission of blazars remains a contested topic,inspiring the development of numerous investigative techniques to address this *** this work,we analyzed Fermiγ-ray light curves in the GeV and MeV bands,employing the discrete cross-correlation function method to discern time lags between the two *** 4C+21.35,Ton 599,B21420+32,and PKS 1510-089,we identified a time lag spanning several days,while for PKS 1441+25,the time lag was not statistically *** results imply that the soft photons necessary for inverse Compton scattering predominantly originate from the dusty torus in the first four sources,whereas for PKS1441+25,they seem to be sourced mainly from the broad-line *** analysis of the opacity(τγγ)and the GeV spectra study supports the conclusion that the location of the dissipation region must be beyond the BLR to avoid significant ***,for PKS 1441+25,the emission region is also posited to lie outside yet proximate to the *** parameters of describing the emission region were obtained by fitting broadband spectral energy distribution with contemporaneous observation *** findings suggest that for the five TeV FSRQs,during Te V flaring events,the jet appears to maintain an equilibrium between the energy density of the magnetic field and that of the particles for all investigated sources,with the exceptions of 4C+21.35 and PKS1441+*** terms of the overall jet power,particle energy is the dominant contributor,and the observed blazar radiation cannot be solely attributed to the magnetic field,except in the case of 4C+***,magnetic reconnection is unlikely to be the primary mechanism behind particle acceleration in these systems.

关键词： galaxies:active gamma-rays:galaxies galaxies:jets

Influence of oxygen-rich hot air composite gas medium on sintering performance and function mechanism

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research International 2024年第5期31卷 1071-1081页

作者： Min Gan Hao-xiang Zheng Xiao-hui Fan zhi-yun ji Qiang Li Ming Wu Yi-fan Wang Xiao-long Wang Yu-feng Wu Xu-ling Chen Zeng-qing Sun Xiao-xian huang School of Minerals Processing and Bioengineering Central South UniversityChangsha410083HunanChina Shanxi Taigang Stainless Steel Co. Ltd.Taiyuan030003ShanxiChina

Hot air sintering technology is used to improve the quality and production efficiency of sintered ***,the current thick layer condition highlights the disadvantage of the low oxygen potential of the hot air sintering ***,it is considered to use oxygen enrichment sintering to improve the environment of hot air *** sintering,hot air sintering,and oxygen-rich hot air sintering were compared through sintering cup experiments,and the influence of hot air and oxygen-rich hot air on sintering indexes was *** air reduced the vertical sintering velocity,while improved the yield and tumbler ***-rich hot air sintering contributed to improving the vertical sintering velocity while ensuring the quality of sintered ore,thus comprehensively improving production *** the action of hot air,the highest temperature of the sintering layer increased and the high-temperature holding time was *** oxygen enrichment,the combustion efficiency of fuels in the upper layer of materials was promoted,which optimized heat distribution in the middle and lower layers of materials and increased the content of calcium ferrite in the sintered ore,thus strengthening the sintering process.

关键词： Iron ore sintering Hot air sintering Oxygen enrichment Function mechanism