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A three phase voltage type PWM rectifier with the function of an active power filter

A three phase voltage type PWM rectifier with the function of an active power filter

Tài liệu khác

... Using the PWM signals S, , S, and S , , the six s of the PWM rectifier areswitched switches s, on and off in the following manner to generate the PWh4 waveforms of the rectifier AC-side phase ... power systems, the three-phase voltage-type P W M rectifier having the function of an active power filterhas been investigated and its effectiveness has been confirmed using a thee-phase diode bridge ... input currents i, , iv and Active Filtering Operation For active filtering operation, the P W M rectifier is 387 i,, PWM signals SI,, S, and S , for phase U, phase v and phase w , respectively,...
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Báo cáo khoa học:

Báo cáo khoa học: "THE COMPUTER AS AN ACTIVE COMMUNICATION MEDIUM" pdf

Báo cáo khoa học

... understand what is going on They may believe that if there is a better way, they should have seen it themselves years ago and if they didn't they must be an idiot Since they didn't see it and they ... them There are many non-empirically based beliefs that may interfer in the communication process The experienced office worker may, for instance, notice the young age of the systems analyst and ... to the empirical level If, however, one of the participants finds a 84 flaw in the other's thinking and then overgeneralizes and thinks 'What an idiot That d o e s n ' t logically follow How can...
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Tài liệu Báo cáo khoa học: The molecular surface of proteolytic enzymes has an important role in stability of the enzymatic activity in extraordinary environments pptx

Tài liệu Báo cáo khoa học: The molecular surface of proteolytic enzymes has an important role in stability of the enzymatic activity in extraordinary environments pptx

Báo cáo khoa học

... appear at the molecular surface and become exposed to the solvent; the exposed peptide bonds are digested by one another and the enzyme becomes inactive We hypothesize that substitutions of the amino ... temperature indicates the stability of the structure of the protein The difference of the increments between the inactive temperature and the Tm should indicate that the mutations improved the stability ... SDS and LAS bind to the surface regions of protein, and the surface regions would be unfolded and removed from the core structure of the enzyme slowly Then the scissile bonds concealed by the...
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Báo cáo Y học: An active site homology model of phenylalanine ammonia-lyase from Petroselinum crispum docx

Báo cáo Y học: An active site homology model of phenylalanine ammonia-lyase from Petroselinum crispum docx

Báo cáo khoa học

... To gain further insight into the possible role of the active site residues a theoretical model for PAL was built by homology modelling [28] (Figs and 4) According to the model, the active structure ... into the active site of the PAL model gave further insight into the role of the amino-acid residues in catalysis (Fig 6A) These ligand-binding models confirmed the hypothesis concerning the p-stacking ... active than the wild-type enzyme The PAL residues L138 and Q488 and the unsimilar counterparts H83 and E414 in the HAL amino-acid sequence may be important for the substrate specificity of the homologous...
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Báo cáo khoa học: Shewasin A, an active pepsin homolog from the bacterium Shewanella amazonensis pptx

Báo cáo khoa học: Shewasin A, an active pepsin homolog from the bacterium Shewanella amazonensis pptx

Báo cáo khoa học

... present in the shewasin A amino acid sequence The Asp of the active site motif from the N-terminal domain (marked with an asterisk) was mutated to an Ala to generate the active site mutant shewasin ... substantiate this finding further, an active site mutant of shewasin A was generated in which the (putative) catalytic Asp of the Asp-Thr-Gly motif of the N-terminal domain (Fig 1) was mutated to an ... 91.2 82.1 Fig Purification and analysis of recombinant shewasin A active site mutant The active site mutant shewasin A_(D37A) was expressed in E coli, purified according to the protocol optimized...
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Báo cáo khoa học: An active triple-catalytic hybrid enzyme engineered by linking cyclo-oxygenase isoform-1 to prostacyclin synthase that can constantly biosynthesize prostacyclin, the vascular protector pot

Báo cáo khoa học: An active triple-catalytic hybrid enzyme engineered by linking cyclo-oxygenase isoform-1 to prostacyclin synthase that can constantly biosynthesize prostacyclin, the vascular protector pot

Báo cáo khoa học

... permeabilized the cell membrane, and with saponin, which generally permeabilized both the cell and the ER membranes (Fig 2B) The results indicated that the modification of the linkage between the COX-1 ... addition, we thank R Kulmacz and Lee-Ho Wang for providing the original wild-type cDNAs of human COX-1 and PGIS, respectively We also thank Anita Mohite for her assistance with the anti platelet ... transiently transfected with cDNA of COX-1–10aa–PGIS (lane 1) or COX-2–10aa–PGIS (lane 2), or the pcDNA3.1 vector alone (lane 3), were solubilized and separated by 7% SDS ⁄ PAGE, and then transferred...
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Báo cáo toán học:

Báo cáo toán học: "Short term interactions between tree foliage and the aerial environment: An overview of modelling approaches available for tree structure-function model" potx

Báo cáo khoa học

... that Lagrangian theory only needs a rather crude model for the wind field [37, 140] Further details on both the Eulerian and the Lagrangian approach for scalar transfer within canopies can be found ... is a model input and assumed not to change These models mainly deal with instantaneous processes involved in resource acquisition and use (e.g transpiration and/or photosynthesis) and study the ... (J kg1 K1), and the psychrometric constant (Pa K1), respectively Ts and Ta are air and leaf temperatures, and es and ea are the water vapour pressure in the substomatal spaces and in the air, respectively...
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báo cáo khoa học:

báo cáo khoa học: " The Arabidopsis EAR-motif-containing protein RAP2.1 functions as an active transcriptional repressor to keep stress responses under tight control" docx

Báo cáo khoa học

... developed the experimental design, carried out the work, analyzed the data and drafted the manuscript JYL conceived and coordinated the study, and participated in the experimental design and critically ... tumefacians GV3101 and transformed into wild-type or rap2.1-2 plants by the floral dip method [41] Hygromycin-resistant transformants were selected and western blots were performed with the anti-myc ... recovered from the immunoprecipitates with either the anti-myc or the anti-His antibodies Similar cases were also detected for the Actin control fragment While in the wild type seedlings (WT), there was...
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Báo cáo y học:

Báo cáo y học: "Pro/con debate: Octreotide has an important role in the treatment of gastrointestinal bleeding of unknown origin" pptx

Báo cáo khoa học

... compared with H2 antagonists and placebo in the management of acute nonvariceal upper gastrointestinal hemorrhage: a metaanalysis Ann Intern Med 1997, 127:1062-1071 22 Archimandritis A, Tsirantonaki ... interests AB is a consultant for AstraZeneca and Atlana Pharma References Reubi JC, Schaer JC, Laissue JA, Waser B: Somatostatin receptors and their subtypes in human tumors and in peritumoral vessels ... response: Defining the indication Yaseen Arabi and Bandar Al Knawy Octreotide use as an adjunct to endoscopic therapy [21,24,32] should be distinguished from its use as an initial therapy awaiting...
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Báo cáo y học:

Báo cáo y học: "The effect of an intensive care unit staffing model on tidal volume in patients with acute lung injury" pdf

Báo cáo khoa học

... CRC conceived the study, performed the statistical analysis, interpreted the results and drafted the manuscript TRW participated in data analysis and critical review and revision of the Pronovost ... draft the manuscript GDR participated in study design and conceptualisation, data collection, interpretation of the results and drafting the manuscript All authors read and approved the final manuscript ... compared with patients in open ICUs The effect of closed model ICU on delivered VT was robust to changes in the included covariates in the regression model and changes in the study cohort (Figure 2)...
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Báo cáo y học:

Báo cáo y học: " Specific TATAA and bZIP requirements suggest that HTLV-I Tax has transcriptional activity subsequent to the assembly of an initiation complex" pps

Báo cáo khoa học

... p21-HTLV-CAT (lanes and 2), pCRE-HTLV-CAT (lanes and 4), pAP1-HTLV-CAT (lanes and 6), pSP1-HTLV-CAT (lanes and 8), pKB-HTLV-CAT (lanes and 10) and pSRE-HTLV-CAT (lanes 11 and 12) were transfected ... p21-HTLV-CAT (lanes and 2), pCRE-HTLV-CAT (lanes and 4), pAP1HTLV-CAT (lanes and 6), pSP1-HTLV-CAT (lanes and 8), pKB-HTLV-CAT (lanes and 10) and pSRE-HTLV-CAT (lanes 11 and 12) were transfected into ... lanes 4–6, and pGal4Tax for lanes 7–9) and µg of a CAT reporter construct (pG5-E1B-CAT for lanes 1, and 7; pG5-HIV-CAT for lanes 2, and 8; and pG5-HTLV-CAT for lanes 3, and 9) (C, D) Basal and...
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The development of an in vivo humanized mouse model to investigate epstein barr virus infection and tumorigenesis

The development of an in vivo humanized mouse model to investigate epstein barr virus infection and tumorigenesis

Cao đẳng - Đại học

... disorder 122,123 The risk of developing post-transplant lymphoproliferative disorder (PTLD) varies with the type of organ transplanted, the age of the patient and the intensity of the immunosuppressive ... used The highest rate of PTLD is seen in the first year post- transplant124 The overall incidence of PTLD is - 2% The incidence of the disease in renal and liver transplant is – 5%, in heart and ... Introduction regulated by C and W promoters and translated from spliced products of a giant messenger RNA EBNA2 is another transforming protein and acts as a viral transcriptional transactivator responsible...
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Repo cổ phiếu thế nào cho an toàn?

Repo cổ phiếu thế nào cho an toàn?

Đầu tư Chứng khoán

... khoán Theo tôi, rủi ro hoạt động repo thời gian qua chủ yếu nguyên nhân như: chưa đánh giá mức mã chứng khoán danh mục repo; danh mục cổ phiếu repo nghèo nàn, chưa thu hút khách hàng; danh mục ... cuối năm 2009, theo khả quan Thời gian không nên hạn chế repo chứng khoán mà nên hạn chế giá repo mà (không nên repo chứng khoán giá cao so với lực tài tình hình sản xuất kinh doanh doanh nghiệp) ... tỷ lệ repo giảm xuống, thời gian repo ngắn, danh mục cổ phiếu repo lựa chọn khắt khe Hiện nay, danh mục cổ phiếu nhận repo không cố định mà thay đổi thời kỳ, tùy theo diễn biến thị trường, giá...
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The Heart of an Assassin

The Heart of an Assassin

Tài liệu khác

... solely in Manhattan and the Bronx and were looking to expand into Giordano territory They numbered over two hundred, but were not as efficiently managed as the Giordano family They sat there quietly ... Tom O’Donnel The Call July 2, 1964 (San Francisco) It was a warm July morning as Shannon Murphy spread out the blanket on the beach running alongside San Francisco Bay The soft, gray sand stretched ... the Golden Gate Bridge and to the south for several miles Being a weekday, there were few people on the beach Only the soft sounds of birds in the sky and the water hitting the beach filled the...
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Contributions of Various Noncovalent Bonds to the Interaction between an Amide and S-Containing Molecules

Contributions of Various Noncovalent Bonds to the Interaction between an Amide and S-Containing Molecules

... from the NHãããS H-bond Rather than the CS antibond, the SS s* orbital is the recipient of charge in the next minimum m, this time extracted from both the N lone pair and the CO p* orbital An Nlp ... about the relative strengths of SHãããO and NHãããS On the other hand, it would be fair to claim that the CHãããO H-bond is weaker than either of the other two Note, however, that even here one cannot ... CHãããO The pattern changes when the H of the SH group is replaced by a second methyl group in CH3SCH3 The enhancement of the S atoms proton-accepting ability strengthens the NHãããS H-bond to the...
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Cố vấn trưởng về cải cách thể chế Dự án USAID - VNCI

Cố vấn trưởng về cải cách thể chế Dự án USAID - VNCI

Tài liệu khác

... giá tác động Hướng dẫn Các doanh nghiệp nhỏ phải gánh chịu gánh nặng sách không cân xứng so với doanh nghiệp lớn, mà hầu hết doanh nghiệp Việt Nam là doanh nghiệp nhỏ Do đó, cần cân ... dẫn Mô tả phương án ‘không can thiệp’ Mọi báo cáo RIA đều phải bao gồm phương án “không can thiệp” Đây luôn là Phương án Nêu cụ thể phương án thay việc ban hành VBQPPL (các phương ... mà quan đề nghị xây dựng văn bản quy phạm pháp luật (VBQPPL) cho rằng cần phải được giải quyết Nêu rõ mục tiêu của việc ban hành VBQPPL Thuyết minh để giải vấn đề, quan có...
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The relationship between an organization’s structure and culture and the effects on business performance

The relationship between an organization’s structure and culture and the effects on business performance

Kinh tế - Thương mại

... changing management from Ballmer, once again Here, all ideas are expressed and the final is group-decision On the other hand, Ballmer has reduced a level of management to manage more easily and ... individual task can exchange and work each others And then, the more exchange the more relationship • Advantages: Microsoft also is not exception Everything went well for Microsoft; the fiscal went ... enough for an organization to run clearly and effectively Organizational culture is also remarkable As the same as other concepts, there are many way to define organizational culture One of the definition...
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thế giới hình ẩn trong di cảo thơ Chế Lan Viên

thế giới hình ẩn trong di cảo thơ Chế Lan Viên

Tư liệu khác

... sắc bỏ quên/ Xanh um có màu xanh cỏ/ Anh đặt cho lòng Viên Tĩnh Viên” Nếu tôn giáo có sức hút lớn ông thiên nhiên vậy: Trời đẹp quá! Không tôn giáo mà anh chắp tay anh lại Nhắm mắt anh cho khỏi ... thời gian chết kết tinh viên ngọc Hình ảnh ba: trang giấy đèn – nhà thơ mờ tỏ trang Di cảo Trong ba ấy, sứ mệnh nhà thơ cao “Chỉ anh cứu cho tất cả” Hình ảnh người xâu kim, người tử tù an áo, ... Người đọc khó mà quên hình ảnh hàng nghìn mộ cát vô danh, thời gian xoá nhoà tên tuổi họ - người đời phút giây hạnh phúc, sống vô danh chết vô danh; nhà thơ tài hoa tiếng mà đời sống cảnh nghèo,...
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Cấp lại thẻ kiểm soát an ninh hàng không có giá trị sử dụng nhiều lần tại tất cả các cảng hàng không, sân bay của Việt Nam

Cấp lại thẻ kiểm soát an ninh hàng không có giá trị sử dụng nhiều lần tại tất cả các cảng hàng không, sân bay của Việt Nam

Tài liệu khác

... liên quan tới tội số 3372 /C phạm; tiền án, tiền thi hành án loại tội phạm nguy hiểm cho việc bảo đảm an ninh Cục HKVN xem xét cấp thẻ cho cá nhân thuộc quan nhà nước, hãng hàng không, doanh nghiệp ... Phòng An ninh hàng không - Cục Hàng không Việt Nam Nhận thẻ ký xác nhận nhận thẻ Hồ sơ Thành phần hồ sơ Công văn đề nghị tổ chức người đề nghị cấp thẻ (bản chính); Tờ khai người đề nghị cấp thẻ (theo ... nhân thuộc quan nhà nước, hãng hàng không, doanh nghiệp bảo đảm hoạt động bay, doanh nghiệp cảng hàng không, doanh nghiệp bảo dưỡng sửa chữa tàu Nội dung bay công tác, làm việc thường xuyên cảng...
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