480 v three phase delta and secondary 208 y 120 v three phase four wire
Neutral current compensation in three phase, four wire systems a review
... (single -phase two-winding) (three- phase two-winding) (single -phase three- winding and single -phase two-winding) (single -phase three- winding) Vl V √l Vl V √l : √ : 3 Vl V √ and 2l In V √l Winding voltages ... 3 + : Vl Vl In = 0.359Vl In No Lowest No : V √l : V √l In Vl In √ = 0.577Vl In No Low No Yes High Yes No Highest Yes Better than star -delta and star-hexagon Good Better than star -delta and star-hexagon ... repetitive control of a three- phase, four- wire shunt active filter, IEEE Trans Ind Electron 54 (3) (2007) 1495–1503 V Khadkikar, A Chandra, A novel structure for three- phase, four- wire distribution system...
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Topic 5 three phase, four wire systems topic b5
... Three- Phase, Four- Wire Systems A three- phase, four- wire system consists of three ACTIVE conductors plus a NEUTRAL conductor (note: the earth conductor does not normally carry current ... starpoint (the phases have unequal current flows in them, thus they cannot take away all of the current that is supplied by the other phases) The NEUTRAL conductor’s primary purpose is to carry this ... carry the OUT-OF-BALANCE current away from the star-point To maintain the phase voltages equal in value To allow the connection of single -phase loads To carry fault currents in a distribution system...
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Tài liệu ime Control of a Three Phase 4 Wire PWM Inverter with Variable DC Link Voltage and Battery Storage for PV Application doc
... much energy as possible from the PV panel The output power of PV gen V nerators vary y extensively with the wea e ather conditi ions such as solar insula ation, temper rature and cloudy skies T ... fre and distrib p ee buted throug the earth The only dr back is th the initia installation gh raw hat al n cost is consi c iderably high h Figure stand alone photovolta system w phase wire PWM voltage ... MPPT) In th system illu he ustrated in F Figure this is provided by the DC/D DC2 In this way the battery will be alway charged a the Maxim t w ys at mum Power P Point The go of the sy oal ystem illustra...
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Atmospheric volatile organic compound measurements during the Pittsburgh Air Quality Study: Results, interpretation, and quantification of primary and secondary contributions pot
... have lifetimes that vary by nearly a factor of 50, yet they give consistent emission ratio estimates This may indicate that much of the variability observed is relatively local and not driven ... The inlet valve, the standard addition solenoid valve and the water trap cooling, heating and valve circuitry were switched at the appropriate times during the sampling cycle by a relay module ... MEK and acetaldehyde respectively in the winter and 29%, 26% and 34% respectively in the summer Aerosol OC was found to be composed of 16% secondary carbon in the winter and 37% secondary carbon...
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TYPE 2 DIABETES - National clinical guideline for management in primary and secondary care (update) pdf
... insensitivity plus a failure of pancreatic insulin secretion to compensate for this The insulin insensitivity is usually evidenced by excess body weight or obesity, and exacerbated by overeating and ... statements1 Level of evidence Type of evidence 1++ High-quality meta-analyses, systematic reviews of RCTs, or RCTs with a very low risk of bias 1+ Well-conducted meta-analyses, systematic reviews of ... to and agreed by the GDG members during meetings, and they commented on subsequent revisions 11 Type diabetes s Distilling and synthesising the evidence and developing recommendations The evidence...
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Nutrition Education in Public Elementary and Secondary Schools doc
... received by students are consistent, pervasive, and aimed at motivating children to choose a healthy diet 21 22 Appendix A Survey Methodology and Data Reliability 23 24 Survey Methodology and ... diet and improved health It also is vital that local meal providers receive training on how to improve meal quality This dual initiative to educate children and assist meal providers offers many ... that, by the year 2000, “all students will have access to physical education and health education to ensure they are healthy and fit.” The U.S Department of Agriculture (USDA) actively supports...
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Báo cáo khoa học: Phosphopantetheinyl transferase inhibition and secondary metabolism doc
... scintillation vials, and dried by incubation overnight in an 80 °C oven The scintillation vials were removed from the oven, cooled to room temperature, and their mass recorded This value was divided by five ... identified as pyruvoyl carboxylase by genomic and MS analysis (data not shown) Furthermore, we found that the results observed above could be enhanced by increasing the quantity of input sample, and this ... PPTase inhibition and secondary metabolism T L Foley et al photo scanner (Seiko Epson America, Long Beach, CA, USA) or the Typhoon imager, respectively In vitro biotinylation and affinity purification...
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PARKINSON’S DISEASE: National clinical guideline for diagnosis and management in primary and secondary care ppt
... sensitivity, specificity and accuracy were 74%, 100% and 86% respectively Using this threshold, the positive and negative predictive values for the diagnosis of atypical parkinsonian syndromes ... peduncle volume atrophy on visual image analysis differentiated PSP from PD, MSA and controls with a sensitivity of 74% and a specificity of 94%, whereas in quantitative analysis the best sensitivity ... given to: • maintenance of work and family roles, employment, home care and leisure activities • improvement and maintenance of transfers and mobility • improvement of personal self-care activities...
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báo cáo hóa học: " Cyclooxygenase-2 mediates microglial activation and secondary dopaminergic cell death in the mouse MPTP model of Parkinson''''s disease" pptx
... microglial activation may prevent secondary injury induced by an excessive inflammatory response and oxidative stress In several epidemiological studies, nonsteroidal antiinflammatory drugs have shown ... neurotoxicity Animal behavior is a result of underlying cellular physiology, and the results observed at the cellular level are augmented by the behavioral analysis We thoroughly assessed motor movement ... the setup very quickly and that the habituated level of activity is much lower than the first-time exposure Once adjusted, the level of spontaneous horizontal travel and vertical activity were constant...
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Báo cáo lâm nghiệp: "Predicting the environmental thresholds for cambial and secondary vascular tissue development in stems of hybrid aspen" pptx
... in secondary tissue Table II Estimated basal thresholds (± standard errors, s.e.) of environmental variables involved in the production of the various cell types in the secondary vascular system ... cycle is internal and relates to patterns of cellular development, such as the annual increment of the secondary vascular tissues, phloem and xylem However, growth and development occur only ... the right and above the respective vertical and horizontal lines (indicated by arrows) For xylem and phloem ray cells, and for phloem, accumulation is initiated above their respective horizontal...
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Báo cáo khoa học: "Differences of genetic variation based isozymes of primary and secondary metabolism in Quercus petraea" ppt
... to enzymes involved in primary and secondary metabolism The objective of this study was to evaluate levels of within-population variation and genetic differentiation between populations over the ... was verified by means of segregation analyses in controlled crosses (unpublished data) Three enzymes are involved in primary metabolism, and the remaining in secondary metabolism (respectively, ... populations clearly differs according to the class of allozymes studied Enzymes involved in secondary metabolism exhibited higher withinpopulation variation than enzymes involved in primary metabolism...
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Báo cáo khoa học: " Vegetative development, primary and secondary growth of the shoot system of young Terminalia superba tropical trees, in a natural environment. I. Spatial variation" pot
... wood layer that was defined by narrowly-spaced parenchyma bands and the latter to the differentiating wood which exhibited widely-spaced parenchyma bands (fig 6B) This boundary was not always uniform ... tropicaux au stade juvénile Coll Int sur l’Arbre Nat Monspeliensia 13-27 Faÿ E de (1992) Vegetative development, primary and secondary growth of the shoot system of young Terminalia superba ... (fig 5B) These types of concentric and repeated variations - in the spacing of parenchyma bands and in the intensity of staining were not always closely correlated, especially in the lower trunk...
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Báo cáo khoa học: "Vegetative development, primary and secondary growth of the shoot system of young Terminalia superba tropical trees, in a natural environment. II. Terminal growth, lateral growth and main stem-branch growth correlations" ppsx
... the Ivory Coast, K Diabate and his colleagues for providing plant material, and JM Favre (University of Nancy I) for his critical reading of the manuscript Rest and activity in vegetative buds ... were definitively favourable to the rapid development of the species Climatic con- were very close to the 27 °C and 14 h daylength found to be the most favourable for the development of young T superba ... newly-formed leaves This was possible because the developing leaves were not closed up against each other on young shoots, and the upper leaves could be moved away from the young stem easily during...
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Báo cáo y học: " Primary and secondary autoimmune neutropenia" ppsx
... primary biliary cirrhosis; RA, rheumatoid arthritis; SLE, systemic lupus erythematosus; SS, systemic sclerosis commonly also present with thrombocytopenia and/ or haemolytic anaemia, and they may ... SJ, Bhavnani M, Geddes GC, Corrigall V, Boylston AW, Panayi GS, Lanchbury JS: Large granular lymphocyte expansions in patients with Felty’s syndrome: analysis using anti-T cell receptor V beta-specific ... responding to conventional therapies have been reported in very small series or even single patients; they include plasmapheresis, splenectomy and cytotoxic drugs [10] Sustained remission of severe resistant...
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báo cáo khoa học: " Prevalence of Khat chewing in college and secondary (high) school students of Jazan region, Saudi Arabia Hussein M Ageely" doc
... way they behave and think will have a great impact on the population Subjects and methods Study design A Cross-sectional Survey was conducted in May 2006 among students (15–25 years old) in Secondary ... statistically significant The secondary school and the university age (15–25 years) constitute a critical period of lifetime As in previous studies [29] the present study revealed that the prevalence ... examinations [23] However, khat prevalence among secondary school and college students in Jazan area was not previously reported This study was conducted to assess the prevalence and associated risk...
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báo cáo khoa học: " Quantitative 1H NMR metabolomics reveals extensive metabolic reprogramming of primary and secondary metabolism in elicitor-treated opium poppy cell cultures" pptx
... tyramine and dopamine, respectively, was rapidly induced upon elicitation [56] Tyramine hydroxycinnamoyl CoA: tyramine hydroxycinnamoyltransferase (THT) condenses tyramine and hydroxycinnamoyl-CoA ... Tyrosine and tyramine are precursors to both benzylisoquinoline alkaloid and hydroxycinnamic acid amide metabolism in opium poppy Tyrosine/DOPA decarboxylase (TYDC), which converts tyrosine and ... CoA biosynthesis CoA is a ubiquitous metabolite that is involved in the oxidation of fatty acids, carbohydrates and amino acids, and plays a key role in the biosynthesis of many secondary metabolites...
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Báo cáo y học: "Situs inversus totalis and secondary biliary cirrhosis: a case report" pptx
... whereby biliary dysgenesis is prominent Bile duct involvement in Sökmen et al Comparative Hepatology 2011, 10:5 http://www.comparative-hepatology.com/content/10/1/5 cystic kidney disease may be ... immobility of nodal cilia inhibits the flow of extra embryonic fluid during embryonic period and this leads to SI development [7] However, primary ciliary dyskinesia (PCD) is observed only in 25% ... Antonarakis SE: Mutations in the DNAH11 (axonemal heavy chain dynein type 11) gene cause one form of situs inversus totalis and most likely primaryciliary dyskinesia Proc Natl Acad Sci USA 2002, 99(16):10282-10286...
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Identification of Sea Level Rise impacts on the Mekong Delta and Orientation of adaptation activities ppsx
... disappears Many sea dyke structures of which safety is not assured any more that is not only due to the dyke crest elevation not being assured but also because forces on the dyke body and seepage ... Adaptation activities for agricultural development First of all, it is required to carry out rigorous and systematic surveys and studies to specifically assess impacts of the sea level rising process ... for various reasons Saline water in Bassac River intrudes beyond Dai Ngai location of to 10 km; the salinity of g/l in CoChien river also enters beyond Vung Liem canal; in Ham Luong river by February...
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Báo cáo y học: "Evolutionary conservation of sequence and secondary structures in CRISPR repeats" pps
... subtype genes appear exclusively in the proximity of structured repeat cluster 2, and, similarly, the Dvulg and Ypest CAS subtypes correspond strictly to our structured clusters and 4, respectively ... machinery Discussion This study shows that CRISPR repeats are not structurally homogeneous and can be divided into distinct types based on sequence similarity and ability to form stable secondary The ... reviews 10 Makarova KS, Grishin NV, Shabalina SA, Wolf YI, Koonin EV: A putative RNA-interference-based immune system in prokaryotes: computational analysis of the predicted enzymatic machinery,...
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Khóa luận tiếng anh PESTICIDE USE AND MANAGEMENT IN THE MEKONG DELTA AND THEIR RESIDUES IN SURFACE AND DRINKING WATER
... Renaud and Dr Zita Sebesvari, who were very willing and enthusiastic in guiding and supervising my work from the very beginning With their great effort, they were at once my tutors, guides and faithful ... gradually reduced, and more recently pyrethroid and carbamate insecticides have been frequently employed to control insects However, extremely and highly hazardous WHO category insecticides which ... control target pests destroys biodiversity and natural pest control services, and this leads to the secondary pest outbreaks and makes the ecosystems vulnerable to pest invasions (Heong, 2008; Heong...
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Tìm thêm: hệ việt nam nhật bản và sức hấp dẫn của tiếng nhật tại việt nam xác định các nguyên tắc biên soạn khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ lồng sóc mở máy động cơ rôto dây quấn đặc tuyến hiệu suất h fi p2 đặc tuyến tốc độ rôto n fi p2 sự cần thiết phải đầu tư xây dựng nhà máy thông tin liên lạc và các dịch vụ phần 3 giới thiệu nguyên liệu từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25