interaction of electrons with acoustic and optical phonons
2 - Interaction of Electrons and Photons
... Inc.opticalwaveutilizingthestimulatedemissioninamediumwherepopulationinversionisproducedbyexcitation.Thestateofthemediumwithpopulationinversioniscalledthelaser-activestate.Insemiconductorinjectionlasers,populationinversionisrealizedthroughinjectionofminoritycarrierswithahighenergyinthevicinityofap–njunctionbysupplyingaforwardcurrent.Althoughinthischapterthepossibilityofenhancementofopticalpowerbystimulatedphotonemissionwasshownbasedonconsiderationofthestatesofanelectronandtheenergyeigenstatesoftheopticalfield,thisdiscussiondoesnotensurethepossibilityofenhancementofopticalamplitudeincludingthephase,i.e.,thecoherentamplificationofanopticalwave.ThepossibilityofcoherentamplificationwillbediscussedonthebasisofananalysisusingthedensitymatrixinChap.3.Spontaneousemissionalsotakesplaceinparalleltothelaseraction.Itaffectssignificantlythelaserperformances;e.g.,itgivesrisetothelaseroscillationthresholdandthequantumnoiseintheoutputlight.REFERENCES1.W.Heitler,TheQuantumTheoryofRadiation,OxfordUniversityPress,Oxford(1954).2.A.Yariv,QuantumElectronics,JohnWiley,NewYork(1967).3.L.I.Schiff,QuantumMechanics,McGraw-Hill,NewYork(1968).4.Y.Fujii,OpticalandQuantumElectronics(inJapanese),Kyoritsu,Tokyo(1978).5.M.SargentIII,M.O.Scully,andW.E.Lamb,Jr,LaserPhysics,Addison-Wesley,Reading,MA(1974).6.D.Marcuse,PrinciplesofQuantumElectronics,AcademicPress,NewYork(1980).7.K.Shimoda,IntroductiontoLaserPhysics(inJapanese),Iwanami,Tokyo(1983).8.P.MeystreandM.SargentIII,ElementsofQuantumOptics,Springer,Berlin(1991).9.T.Suhara,QuantumElectronics(inJapanese),Ohmsha,Tokyo(1993).36Chapter2Copyright ... j ji of the electron and the eigenstates jnmi of optical field of each mode m. Here J is a label for the combination of electron states and states of field modes ( j and {nm}), and jCJi ... photons are deduced, and the possibility of optical wave amplification in population-inverted states is shown.2.1 QUANTIZATION OF OPTICAL WAVES AND PHOTONS2.1.1 Expression of Optical Waves by Mode...
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Tài liệu Báo cáo Y học: Interaction of decorin with CNBr peptides from collagens I and II Evidence for multiple binding sites and essential lysyl residues in collagen pot
... region within the d and e bands of collagen fibrils. Twochemical derivatives of collagens and of positive peptideswere prepared by N-acetylation and N-methylation of theprimary amino group of Lys/Hyl ... interact with fibrillar c ollagensthrough its protein core and to localize at d and e bands of the c ollagen fibril banding pattern. Using a s olid-phaseassay, we have determined the interaction of ... spectra of a recombinant decorin purified in theabsence of chaotropic agents, with the exception of thewavelength of the minimum (215–216 instead of 218 nm) and very different to the spectrum of...
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Báo cáo khoa học: Comprehensive interaction of dicalcin with annexins in frog olfactory and respiratory cilia pdf
... amixture of annexin A1 and A2 and that the 35 kDa proteins are a mixture of annexin A5 and proteolytic fragments of annexin A1 and annex-in A2. Purified recombinant annexin A1, annexin A2 and annexin ... shown asthin dotted lines in (C) and (D). The result obtained in the presence of dicalcin and all of the annexins (E) was compared with the calcu-lated sum of each of the initial rates obtained ... localize in the cilia of frog olfactory and respiratory epithelium [7]. Tounderstand the possible association of annexin A1,annexin A2 and annexin A5 with the function of dical-cin, we examined...
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Báo cáo khoa học: Lipopolyamine treatment increases the efficacy of intoxication with saporin and an anticancer saporin conjugate doc
... addition of saporin and for cells shocked with dimethylsulfoxide after a 4 °Ctoxin incubation (Figs 2B and 3A). Sandvig et al. [28]have further shown that cells coincubated with dimethylsulfoxide and ... Department of Molecular Biology and Microbiology and Biomolecular Science Center, University of Central Florida, FL, USA2 Department of Chemistry and Biomolecular Science Center, University of Central ... University of CentralFlorida Department of Molecular Biology and Micro-biology and an AIRC grant to M. S. Fabbrini. Partialsupport was provided by the Broad Medical ResearchProgram of the Eli and...
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Báo cáo khoa học: Nitric oxide formation from the reaction of nitrite with carp and rabbit hemoglobin at intermediate oxygen saturations pdf
... absence and presence of ATP, respec-tively, and 0.06 m)1Æs)1for rabbit Hb, which illustratesthe high reactivity of carp Hb and the decreased rate of reaction with T-state stabilization and ... study show that the reaction of nitrite with deoxyHb is favored over that with oxy-Hb at intermediate So2values and that the formation of NO and HbNO from the reaction with deoxyHb issubstantial ... reaction of nitrite with deoxyHb (Fig. 1A) and with Hb with aninitial So2 of 46% (Fig. 1B).When nitrite reacted with carp deoxyHb in a nitro-gen atmosphere, the concentration of deoxyHbdecreased...
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Báo cáo khoa học: Enzymes that hydrolyze adenine nucleotides of patients with hypercholesterolemia and inflammatory processes potx
... 2007 FEBS2.0 mL), and this was followed by 45 min of heating at95 °C. After cooling, samples and standards of malondial-dehyde were read at 532 nm against the blank of the stand-ard curve. The ... changethe rate of platelet nucleotide hydrolysis. Plateletscomprise one of the components of the thrombusmicroenvironment and of the process of thrombo-regulation. It is known that the rate of platelet ... However, considering the function and the mobility of platelets, we can understand theiractive role in this process and the importance of such hydrolysis. In line with this, literature data indi-cate...
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Báo cáo khoa học: Interaction of DAPI with individual strands of trinucleotide repeats Effects on replication in vitro of the AATÆATT triplet docx
... the interaction of TATAbox binding protein and TFIIA with DNA. Biochemistry 33,7033–7040.4760 E. Trotta et al. (Eur. J. Biochem. 270) Ó FEBS 2003 Interaction of DAPI with individual strands of ... structure of the T-rich strand of the AATÆATT trinucleotide repeat. Our results suggest anovel mechanism of action of DAPI and show the unusualreplication feature of a common class of genomic ... favourable and selective interaction with the minor-groove of AÆTandTÆTbase-pairs. The molecular mechanism proposed in this workmay help in designing new minor-groove binding ligands with sequence-selective...
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Tài liệu Báo cáo khoa học: Insights into the interaction of human arginase II with substrate and manganese ions by site-directed mutagenesis and kinetic studies Alteration of substrate specificity by replacement of Asn149 with Asp docx
... activesites of this enzyme and arginase I. In spite of the rel-atively low agmatinase activity of the Asn149Asp vari-ant, it is clear that the interactions of arginase II with l-arginine and agmatine ... variants. Interaction of arginase II with substrate and manganese ions V. Lo´pez et al.4542 FEBS Journal 272 (2005) 4540–4548 ª 2005 FEBSInsights into the interaction of human arginase II with substrate and ... examine the interaction of human arginase II (EC 3.5.3.1) with sub-strate and manganese ions, the His120Asn, His145Asn and Asn149Aspmutations were introduced separately. About 53% and 95% of wild-typearginase...
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Báo cáo khoa học: Interaction of the general transcription factor TnrA with the PII-like protein GlnK and glutamine synthetase in Bacillus subtilis potx
... 5 mL of this, and incubatedfor 2 h at 24 °C. To remove the unbound antibodies, thebeads were washed twice with 5 mL of NaCl ⁄ Pi, twice with 5 mL of 100 mm glycine (pH 3.0), and twice with ... S3) [10,19]. Interactions of the truncatedTnrA proteins with GlnK and with GS were determinedby pulldown and SPR analysis, as described above(Fig. 6). As expected, the C-terminus of TnrA was ... nucleotides,such as ADP, AMP, and GTP, at concentrations of Fig. 3. Influence of various effector molecules on the interaction of GlnK with the His6-TnrA surface. GlnK was preincubated with effec-tor molecules...
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Báo cáo khoa học: Cloning, expression and interaction of human T-cell receptors with the bacterial superantigen SSA ppt
... forhuman Vb5.2 and V b1withKd of 9–11 lM with a fast kass and a moderately fast kdiss. In spite of the reported stimu-lation of V b2.1 bearing T-cells by SSA, we o bserved nomeasurable interaction. Keywords: ... Consequently, the molecularstudies of the interaction of SAgs with their s pecifics ligandswill not only advance understanding of the physiologicalmechanisms of these molecules, but may lead to ... Recognit. 16,91–101.Ó FEBS 2004 Interaction of human TCR with superantigen SSA (Eur. J. Biochem. 271) 4083Cloning, expression and interaction of human T-cell receptors with the bacterial superantigen...
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Báo cáo Y học: Interaction of bovine coagulation factor X and its glutamic-acid-containing fragments with phospholipid membranes A surface plasmon resonance study pdf
... )*kon;1koff;1AB ð2ÞAB þ B )*kon;2koff;2AB2ð3Þwhered½B=dt ¼À2kon;1½A½Bþkoff;1½ABÀkon;2½AB[B]þ 2koff;2½AB2ð4Þd½AB=dt ¼ 2kon;1½A½BÀkoff;1½ABÀ kon;2½AB[B] þ 2koff;2½AB2ð5Þd½AB2=dt ... binding of factor X and its Gla-containing fragments to membranes containing 25 mol% PtdSer in the presence of 10 mMCa2+obtained by evaluation of association and dissociation phases (I) and equilibrium ... (1972) Mode of action of vitaminK and calcium binding properties of bovine prothrombin. Bio-chemistry 11, 4961–4964.24. Stenflo, J. & Ganot, P. (1973) Binding of Ca2+to normal and dicoumarol-induced...
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Báo cáo khoa học: Interaction of Sesbania mosaic virus movement protein with the coat protein – implications for viral spread Soumya Roy Chowdhury and Handanahal Subbarao Savithri docx
... levels.Thus the drastic reduction in interaction of ND35 and ABFig. 8. Y2H interaction between MP and CP. (A) pGBK T7 (MP, MP deletion mutants and p53) and pGAD T7 (CP and T Ag) clones weretransformed ... similarity with MPs of viruses from other gen-era. Within sobemoviruses, the sequence of the SeMVMP was closest to that of the SBMV-Ark MP (32%sequence identity), and the identity with MPs of othersobemoviruses ... 4. Interaction of rMP with NV. (A) ELISA of rMP and NV inter-action. ELISA plates coated with NV (5 lg) (P1) were blocked with 10% skimmed milk in 1% NaCl ⁄ Pi (block) followed by addition of 5...
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Báo cáo khoa học: Interaction of gymnemic acid with cyclodextrins analyzed by isothermal titration calorimetry, NMR and dynamic light scattering doc
... correlate with the binding affinity between GA and the receptor.The thermodynamic parameters obtained are in therange of those of other interactions with c-CD [15].The interaction of GA with c-CD ... with the interaction of GA and c-CD [21,22]. In addition, theDCpvalue, )0.14 kcalÆmol)1Æ°C)1, is large and negat-ive, which is in the largest range among those of otherinteractions with ... glycer-aldehyde-3-phosphate dehydrogenase and induce asmearing of its electrophoretic band and dephosphoryla-tion. FEBS Lett 579, 4333–4336. Interaction of gymnemic acid with cyclodextrins Y. Izutani et...
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- interaction of electrons with lattice vibrations
- interaction of electrons with electromagnetic field
- interaction of electrons with photons
- interaction of electrons with atoms
- interaction of electrons and phonons with photons
- interaction of electrons with matter production of heat
- interaction of electrons with matter ppt
- interaction of electrons with matter
- frohlich interaction of electrons with lattice vibrations
Tìm thêm: xác định các mục tiêu của chương trình 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 điều tra đối với đối tượng giảng viên và đối tượng quản lí khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam nội dung cụ thể cho từng kĩ năng ở từng cấp độ xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ rôto dây quấn các đặc tính của động cơ điện không đồng bộ đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến dòng điện stato i1 fi p2 động cơ điện không đồng bộ một pha sự cần thiết phải đầu tư xây dựng nhà máy 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 9 tr 25