检索结果-南通市图书馆

very Short-Term Generating Power Forecasting for Wind Power Generators Based on Time Series Analysis

在线全文

学校读者我要写书评

暂无评论

Smart Grid and Renewable Energy 2013年第2期4卷 181-186页

作者： Atsushi Yona Tomonobu Senjyu Funabashi Toshihisa Chul-Hwan Kim Meidensha Corporation Tokyo Japan Sungkyunkwan University Suwon City South Korea. University of the Ryukyus Okinawa Japan

In recent years, there has been introduction of alternative energy sources such as wind energy. However, wind speed is not constant and wind power output is proportional to the cube of the wind speed. In order to control the power output for wind power generators as accurately as possible, a method of wind speed estimation is required. In this paper, a technique considers that wind speed in the order of 1 - 30 seconds is investigated in confirming the validity of the Auto Regressive model (AR), Kalman Filter (KF) and Neural Network (NN) to forecast wind speed. This paper compares the simulation results of the forecast wind speed for the power output forecast of wind power generator by using AR, KF and NN.

关键词： very Short-Term Ahead Forecasting Wind Power Generation Wind Speed Forecasting Time Series Analysis

THE SYNTHETIC ANALYSIS OF THE very HEAVY RAINSTORMS IN GUANGDONG

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Tropical Meteorology 1999年第2期5卷 179-188页

作者：练江帆梁必骐

Twelve very heavy rainstorms that caused severe floods in Pearl River drainage basin from 1949to 1994 are analyzed here. It is found that the rainstorms can be divided into three kinds. and they have differentcharacteristics in circulation and physical quantities. Rainstorms that caused floods in the Xijiang River andBeijiang River usually happen during the first flood season of the year (Apr.-Jun.). They last long. cover largeareas and cause severe disasters. There are Stable circulation backgrounds and complete tyontal precipitationsystems, and large stratification instability fields. Rainstorms often cause floods in coastal rivers and small tributaries during the second floods season (Jul.-Sept.). They happen suddenly, last a short time but have strong raillfail intensity. They are always caused by tropical cyclones but show significant instability only in rainstorm *** characteristics of rainstorms causing floods in the Dongjiang River or other main tributaries are similar to thetwo above. That is, they may be connected with fronts or tropical cyclones, and its stability degree is between thepreceding two kinds.

关键词： Guangdong very heavy rainstorms flood characteristics

Atrial fibrillation and rheumatic valvular heart disease:usefulness of very-low-dose amiodarone

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2006年第24期119卷 2027-2029页

作者： Tsuyoshi Shiga Department of Cardiology Tokyo Women's Medical University8-1 Kawada-choShinjuku-kuTokyo 162-8666Japan

Atrial fibrillation （AF） is frequently associated with rheumatic valvular heart disease （RVHD）. AF leads to systemic thromboembolic complications, reduced quality of life （QOL）, impaired ventricular function and also increased mortality. Multivariate analysis of results from a population-based study has shown that valvular heart disease is one of risk factors for development of AF.1 The frequency of RVHD has decreased in developed countries in recent years, but RVHD now constitutes a significant population for the cardiology services in developing countries.

关键词： Atrial fibrillation and rheumatic valvular heart disease very

中国学习者书面语中增强词的多视角对比研究——以常用词very much为例

在线全文

学校读者我要写书评

暂无评论

外国语 2012年第1期35卷 48-53页

作者：陈颖马武林常州大学外国语学院江苏常州213164 四川外语学院大学外语教学部重庆400031

本文运用语料库研究方法及工具,以常用词very much为例,多维度调查了中国学习者书面语中增强词的使用情况。研究结果发现:学习者在该常用目标词的使用频率、语域特征、类联接类型、句法位置以及语义韵倾向方面均显著异于英语本族语者,... 详细信息

本文运用语料库研究方法及工具,以常用词very much为例,多维度调查了中国学习者书面语中增强词的使用情况。研究结果发现:学习者在该常用目标词的使用频率、语域特征、类联接类型、句法位置以及语义韵倾向方面均显著异于英语本族语者,总体偏离目标语范式较远,说明学习者尚未真正掌握该常用增强词的全面、地道用法。本文进一步分析表明,上述问题的产生与学习者学习策略运用、东西思维差异、语内迁移等原因密切相关。

关键词：增强词 very much 类联接语义韵

Evaluation of Fourier Transform Infrared Spectroscopy for Diagnosis of Peroxisomal Diseases with Abnormal very-Long-Chain Fatty Acid Metabolism

在线全文

学校读者我要写书评

暂无评论

American Journal of Analytical Chemistry 2014年第6期5卷 359-366页

作者： Minori Isogawa Satoshi Yoshida Nobuyuki Shimozawa Department of Biomolecular Science Faculty of Engineering Gifu University Gifu Japan Division of Genomics Research Life Science Research Center Gifu University Gifu Japan

very long chain fatty acids (VLCFAs) are accumulated in cells and blood in patients with peroxisomal diseases, such as adrenoleukodystrophy (ALD) and Zellwger Syndrome (ZS). The purpose of this study is to investigate usefulness of Fourier transform infrared spectroscopy (FTIR) with attenuated total reflection (ATR) analysis method for clinical diagnosis of those diseases, thereby we measured the infrared spectra of the sera of patients and healthy controls. Correlation coefficients between 2nd derivative FTIR spectra of the serum samples and the VLCFA content ratio which is used as a clinical parameter to date were comprehensively calculated to investigate which wavenumber showed high correlation with the VLCFA ratio. Multiple regression analysis using the serum FTIR spectra showed that high correlations were observed with VLCFA ratios (C26:0/C22:0 ratio), and we could construct a suitable regression model (R2 = 0.97, p ﹣19). In addition, the model system using various VLCFAs in newborn bovine serum also showed that several FTIR peaks in 800 ~ 900 cm﹣1 region were found to have good correlation with VLCFA ratios. Our results support that FTIR analysis is useful for diagnosis of peroxisomal diseases.

关键词： Fourier Transform Infrared Spectroscopy Attenuated Total Reflection very Long Chain Fatty Acids Peroxisomal Diseases Multiple Regression Analysis

ON very WEAK SOLUTIONS OF NONLINEAR ELLIPTIC SYSTEMS

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Shanghai Jiaotong university(Science) 1997年第2期2卷 8-13页

作者：郑神州

This paper deals with the improvement of integrability of weak solutions for a class of nonlinear elliptic systems with inhomogeneous items in Sobolev space of the least possible hypotheses. By Hodge decomposition and weak reverse Hlder inequality it is obtained that every very weak solution of the systems is a classical weak solution. This result extends IwaneicSbordone's and Lewis' conclusion to more general cases.

关键词： very weak solutions Hodge decomposition reverse Hlder inequality

Smart Photogrammetric and Remote Sensing Image Processing for very High Resolution Optical Images——Examples from the CRC-AGIP Lab at UNB

在线全文

学校读者我要写书评

暂无评论

Journal of Geodesy and Geoinformation Science 2019年第2期2卷 17-26页

作者： Yun ZHANG Department of Geodesy and Geomatics Engineering (GGE) University of New Brunswick (UNB)Fredericton New Brunswick Canada

This paper introduces some of the image processing techniques developed in the Canada Research Chair in Advanced Geomatics Image Processing Laboratory (CRC-AGIP Lab) and in the Department of Geodesy and Geomatics Engineering (GGE) at the University of New Brunswick (UNB), Canada. The techniques were developed by innovatively/“smartly” utilizing the characteristics of the available very high resolution optical remote sensing images to solve important problems or create new applications in photogrammetry and remote sensing. The techniques to be introduced are: automated image fusion (UNB-PanSharp), satellite image online mapping, street view technology, moving vehicle detection using single set satellite imagery, supervised image segmentation, image matching in smooth areas, and change detection using images from different viewing angles. Because of their broad application potential, some of the techniques have made a global impact, and some have demonstrated the potential for a global impact.

关键词： remote sensing optical image very high resolution pan-sharpening online mapping street view moving information detection image segmentation image matching change detection

Effects of Placental Transfusion by Delayed Cord Clamping or Umbilical Cord Milking versus Immediate Cord Clamping on Neonatal Outcomes in very Low Birth Weight Neonates

在线全文

学校读者我要写书评

暂无评论

Open Journal of Obstetrics and Gynecology 2018年第11期8卷 1032-1039页

作者： Swosti Joshi Mopelola Akintorin Alison Wiles Annamarie Arias Louis Fogg Tuan Nguyen Division of Neonatology John H Stroger Hospital of Cook County Chicago IL USA Department of Pediatrics John H Stroger Hospital of Cook County Chicago IL USA Chicago Medical School at Rosalind Franklin University of Medical Sciences Chicago IL USA Division of Statistics Rush University Medical Center Chicago IL USA Department of Obstetrics and Gynecology John H Stroger Hospital of Cook County Chicago IL USA

Background: Delayed cord clamping (DCC) and umbilical cord milking (UCM) are two recently advocated interventions to enhance placental transfusion at birth. DCC and MCM might increase blood volume and help neonates to transition from fetal to neonatal circulation. Objective: To evaluate the effects of delayed cord clamping (DCC), umbilical cord milking (UCM), and immediate cord clamping (ICC) on very low birth weight (VLBW) neonates. Methods: At our institution, ICC was routinely done until December, 2012 when it was replaced by DCC. UCM was implemented in March, 2015. Neonatal outcomes were compared among ICC, DCC, and UCM. Results: A total of 94 neonates met inclusion criteria. Comparing with ICC neonates, DCC and UCM neonates had higher hematocrits, fewer blood transfusions, and lower incidence of chronic lung disease at 36 completed weeks of gestation. All groups were similar in APGAR scores, vasopressor use, intraventricular hemorrhage (IVH) and necrotizing enterocolitis (NEC). Conclusion: Compared to ICC, DCC and UCM appear to be more beneficial to VLBW neonates without apparent adverse risks.

关键词： Delayed Cord Clamping Umbilical Cord Milking very Low Birth Weight Placental Transfusion

Effect of Aggressive Early High-Dose Intravenous Amino Acid Infusion and Early Trophic Enteral Nutrition on very Low Birth Weight Infants

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food and Nutrition Sciences 2012年第11期3卷 1604-1608页

作者： Man-Yau Ho Yu-Hsuan Yen Hsiang-Yin Chen Shu-Chen Chien Mao-Chih Hsieh Yao-Shun Yang Department of Clinical Pharmacy Taipei Medical University Taipei Chinese Taipei Department of Clinical Pharmacy Taipei Medical University Taipei Chinese Taipei. Department of Pediatrics Taipei Chinese Taipei Nutritional Support Team Taipei Chinese Taipei

Objective: very-low-birth-weight (VLBW) preterm infants are at risk of growth delay if they do not receive adequate nutritional support. This study evaluated the effect of aggressive early high-dose amino acid infusion plus early enteral trophic feeding on growth in VLBW infants within the first day of life. Study Design: The effect of a high-dose 3 g amino acid (HAA)/kg/d regimen beginning on the first day of life was compared with that of low-dose amino acid (LAA) supplementation at a dose of 0.5 or 1.0 g/kg/d. The primary outcome measures were the days of regained birth weight and achieved full enteral feeding. Result: Compared with the 19 infants in the LAA group, the 17 infants in the HAA group achieved significantly earlier full enteral feeding (7.8 ± 3.6 vs. 15.2 ± 8.9, p = 0.003) and regained birth weight (13.3 ± 3.8 vs. 17.5 ± 7.9, p = 0.047). In addition, shorter parenteral nutrition time was achieved by HAA administration (p Conclusion: Aggressive early simultaneous amino acid administration plus enteral feeding during the first few days of life for preterm infants was associated with improved weight gain and earlier full enteral feeding.

关键词： Early Nutrition Trophic Enteral Feeding very Low Birth Weight Preterm Infant