標(biāo)題: Titlebook: Computer Assistance in the Analysis of High-Resolution NMR Spectra; P. Diehl,H. Kellerhals,E. Lustig Conference proceedings 1972 Springer- [打印本頁] 作者: endocarditis 時(shí)間: 2025-3-21 19:10
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書目名稱Computer Assistance in the Analysis of High-Resolution NMR Spectra讀者反饋
書目名稱Computer Assistance in the Analysis of High-Resolution NMR Spectra讀者反饋學(xué)科排名
作者: Morphine 時(shí)間: 2025-3-21 20:35 作者: badinage 時(shí)間: 2025-3-22 02:59
978-3-642-65263-9Springer-Verlag Berlin · Heidelberg 1972作者: interference 時(shí)間: 2025-3-22 07:44
Die Kreis= und HyperbelfunktionenSince, as is frequently the case, the number of symbols available is much smaller than the number of quantities to be represented by symbols, it is necessary to denote more than one quantity by the same symbol. Wherever confusion is possible, a symbol is explicitly defined in the text.作者: Apraxia 時(shí)間: 2025-3-22 11:58
https://doi.org/10.1007/978-3-642-99458-6The errors of the parameters are assumed to arise only from random errors of the measurements and not from systematic errors. Before discussing the calculation of parameter errors by the various computer programs, we shall make a few preliminary remarks on the subject of errors itself.作者: Androgen 時(shí)間: 2025-3-22 15:55
Natürliche organische FarbstoffeAny normal NMR spectrum for a general spin system — one which contains no symmetry or weak coupling — arises from one and only one set of parameters, if the absolute signs of the coupling constants and the labelling of nuclei are disregarded. This holds for both the isotropic case [.] and the case involving partially oriented molecules [.].作者: Androgen 時(shí)間: 2025-3-22 19:26
Atomgewichte, Formeln, ProcentigkeitenThe sequence of matrix multiplications . applied to real matrices, leads to a new matrix .. If .. is called an orthogonal matrix, and the operation (W.1) is called an orthogonal transformation (a special case of a “similarity transformation”). If . is symmetric, this property will be found again in the orthogonally transformed ., that is, in .′.作者: 擴(kuò)張 時(shí)間: 2025-3-22 22:27
https://doi.org/10.1007/978-3-642-99237-7When a set of experimental values ., corresponding to a set of theoretical values ., has been measured, and the functional dependence of the . values . on the . parameters .. that is, . is known, a method remains to be devised to obtain the p’s from the m’s.作者: 主動(dòng) 時(shí)間: 2025-3-23 05:13 作者: 射手座 時(shí)間: 2025-3-23 08:15 作者: CHOKE 時(shí)間: 2025-3-23 12:57
Uniqueness of Solutions,Any normal NMR spectrum for a general spin system — one which contains no symmetry or weak coupling — arises from one and only one set of parameters, if the absolute signs of the coupling constants and the labelling of nuclei are disregarded. This holds for both the isotropic case [.] and the case involving partially oriented molecules [.].作者: heterogeneous 時(shí)間: 2025-3-23 15:59 作者: 滲入 時(shí)間: 2025-3-23 20:42 作者: Fecal-Impaction 時(shí)間: 2025-3-24 00:56
https://doi.org/10.1007/978-3-662-41020-2ons of existing computer methods. This, in turn, prompted us to make comparisons between the basic NMR computer programs, to review further developments and to ponder the treatment of errors and the uniqueness of solutions. This latter problem has been puzzling indeed and merits more attention than 作者: 發(fā)芽 時(shí)間: 2025-3-24 05:16
https://doi.org/10.1007/978-3-642-99458-6not classically, if results are to be obtained which correspond to experimental reality. Microsystems are described with the aid of a so-called state or wave function ., the name of which will become plausible in the example given below. Magnitudes ., accessible by experiment (“observables”), are ca作者: 用不完 時(shí)間: 2025-3-24 09:55
https://doi.org/10.1007/978-3-642-99458-6ns or possessing certain simplifying features such as symmetry or weak coupling. As shown in Chapter A, the mathematical operations to be performed during the analysis are, in most cases, too numerous and too complex to be carried out “by hand”. The methods of analysis by hand, developed before comp作者: figment 時(shí)間: 2025-3-24 14:02 作者: Congruous 時(shí)間: 2025-3-24 16:52 作者: ectropion 時(shí)間: 2025-3-24 19:38 作者: Processes 時(shí)間: 2025-3-25 00:57 作者: HIKE 時(shí)間: 2025-3-25 06:05
Brennmaterialien und Feuerungenas in double-resonance experiments changes are generated in the normal spectra by the additional application of a second radiofrequency field . cos.. As pointed out in Sections B.2and C.3.2, the double-resonance methods “complete decoupling” .?.) and “tickling” ., where. is the width of the irradiat作者: 熄滅 時(shí)間: 2025-3-25 09:42
Brennmaterialien und Feuerungen., …, a., because the mathematical handling of a large number of these quantities can become quite cumbersome. Certain rules for operations with these more compact symbols have developed, and thus quantities with subscripts can be manipulated in a rather clear and simple ways.作者: 極端的正確性 時(shí)間: 2025-3-25 14:24 作者: anarchist 時(shí)間: 2025-3-25 15:57
https://doi.org/10.1007/978-3-642-99237-7for an ensemble of microsystems with time-dependent properties. To follow the presentation of this Chapter, the reader should be familiar with the material of Sections A.1 to A.3 and of Chapter V. A more detailed account of the subject is found in a monograph by .-. [.]; the definitions and the nome作者: 占卜者 時(shí)間: 2025-3-25 21:23 作者: 致敬 時(shí)間: 2025-3-26 04:06
Vectors and Matrices,., …, a., because the mathematical handling of a large number of these quantities can become quite cumbersome. Certain rules for operations with these more compact symbols have developed, and thus quantities with subscripts can be manipulated in a rather clear and simple ways.作者: Gene408 時(shí)間: 2025-3-26 07:06 作者: accomplishment 時(shí)間: 2025-3-26 10:06
Computer Assistance in the Analysis of High-Resolution NMR Spectra978-3-642-65261-5Series ISSN 0170-5989 作者: alliance 時(shí)間: 2025-3-26 12:44 作者: Carcinoma 時(shí)間: 2025-3-26 17:14
Brennmaterialien und Feuerungen., …, a., because the mathematical handling of a large number of these quantities can become quite cumbersome. Certain rules for operations with these more compact symbols have developed, and thus quantities with subscripts can be manipulated in a rather clear and simple ways.作者: CHECK 時(shí)間: 2025-3-26 21:13 作者: Goblet-Cells 時(shí)間: 2025-3-27 01:57
Foreword,ons of existing computer methods. This, in turn, prompted us to make comparisons between the basic NMR computer programs, to review further developments and to ponder the treatment of errors and the uniqueness of solutions. This latter problem has been puzzling indeed and merits more attention than 作者: obeisance 時(shí)間: 2025-3-27 06:22
The Calculation of an NMR Spectrum,not classically, if results are to be obtained which correspond to experimental reality. Microsystems are described with the aid of a so-called state or wave function ., the name of which will become plausible in the example given below. Magnitudes ., accessible by experiment (“observables”), are ca作者: Hyperalgesia 時(shí)間: 2025-3-27 09:30
Analysis of Spectra, Unaided by a Computer,ns or possessing certain simplifying features such as symmetry or weak coupling. As shown in Chapter A, the mathematical operations to be performed during the analysis are, in most cases, too numerous and too complex to be carried out “by hand”. The methods of analysis by hand, developed before comp作者: 賠償 時(shí)間: 2025-3-27 17:26 作者: Atheroma 時(shí)間: 2025-3-27 21:44
Developments of the Basic Computer Programs,tion. To follow the purpose of this monograph, we shall describe only those modifications and extensions of the basic programs, which involve more than programming technicalities. Some of the developments include the introduction of concepts common to often-encountered spin systems, such as breakdow作者: COMA 時(shí)間: 2025-3-27 22:26
Comparison of the Iterative Methods,g and the mathematics of the iteration itself. The input is in the form either of energy levels or of line frequencies; for the iteration proper either a “pure least-squares” method is used or the assumption . is made (see Eqs. (C.4) and (C.13)). The combination of these features leads to four funda作者: 巧辦法 時(shí)間: 2025-3-28 05:12 作者: 價(jià)值在貶值 時(shí)間: 2025-3-28 10:08
Double Resonance,as in double-resonance experiments changes are generated in the normal spectra by the additional application of a second radiofrequency field . cos.. As pointed out in Sections B.2and C.3.2, the double-resonance methods “complete decoupling” .?.) and “tickling” ., where. is the width of the irradiat作者: 玉米棒子 時(shí)間: 2025-3-28 10:46 作者: micronutrients 時(shí)間: 2025-3-28 16:32
Parameter Errors from Least-Squares Fits,., involves a two-step procedure. First, the errors of . must be properly characterized. Then, since the errors of . carry over to those of . (the errors “propagate” from . to .., a general law of propagation of errors must be applied to the characteristics of the errors of . so that those of the er作者: Entrancing 時(shí)間: 2025-3-28 20:20 作者: 飲料 時(shí)間: 2025-3-28 23:53 作者: Airtight 時(shí)間: 2025-3-29 03:56
https://doi.org/10.1007/978-3-662-41020-2ts and to ponder the treatment of errors and the uniqueness of solutions. This latter problem has been puzzling indeed and merits more attention than can be given here. Anyone using computer programs in the analysis of a spectrum should be aware of its existence and of its not having been solved in a general way.作者: convert 時(shí)間: 2025-3-29 09:07 作者: Dungeon 時(shí)間: 2025-3-29 12:54
Brennmaterialien und FeuerungenAs pointed out in Sections B.2and C.3.2, the double-resonance methods “complete decoupling” .?.) and “tickling” ., where. is the width of the irradiated ine) may be of help in the assignment of transitions and the simplification of the analysis of complex spectra.作者: 敲詐 時(shí)間: 2025-3-29 16:39
https://doi.org/10.1007/978-3-642-99237-7erial of Sections A.1 to A.3 and of Chapter V. A more detailed account of the subject is found in a monograph by .-. [.]; the definitions and the nomenclature used here are similar to those in that monograph.作者: fatuity 時(shí)間: 2025-3-29 23:09
Foreword,ts and to ponder the treatment of errors and the uniqueness of solutions. This latter problem has been puzzling indeed and merits more attention than can be given here. Anyone using computer programs in the analysis of a spectrum should be aware of its existence and of its not having been solved in a general way.作者: 迅速飛過 時(shí)間: 2025-3-30 02:50 作者: 大火 時(shí)間: 2025-3-30 05:28
Double Resonance,As pointed out in Sections B.2and C.3.2, the double-resonance methods “complete decoupling” .?.) and “tickling” ., where. is the width of the irradiated ine) may be of help in the assignment of transitions and the simplification of the analysis of complex spectra.作者: Gesture 時(shí)間: 2025-3-30 11:46 作者: dilute 時(shí)間: 2025-3-30 15:41 作者: 招惹 時(shí)間: 2025-3-30 19:40 作者: 革新 時(shí)間: 2025-3-30 23:09
https://doi.org/10.1007/978-3-642-99458-6uters became widely available, have not been general enough and often require considerable effort because of their complexity. However, present-day computer programs handle spectra from spin systems of an increasingly general nature.作者: Jubilation 時(shí)間: 2025-3-31 03:55 作者: 祖?zhèn)髫?cái)產(chǎn) 時(shí)間: 2025-3-31 07:58
Natürliche organische Farbstoffelines are functions of the lifetimes of the various reacting or reorienting species, or of the average residence times of spins in particular sites. These variable properties of lines can be observed, if the rates of exchange lie between 10.. and 10.. is the energy difference mentioned above.作者: 一加就噴出 時(shí)間: 2025-3-31 09:34
The Calculation of an NMR Spectrum,lculated with the aid of operators ., the form of which depends on the observable. A ., acceptable by the postulates of quantum mechanics, is found, if, and only if, . operated on by . yields a constant . times the (acceptable) Ψ: 作者: 節(jié)約 時(shí)間: 2025-3-31 15:31 作者: 協(xié)奏曲 時(shí)間: 2025-3-31 18:24
Developments of the Basic Computer Programs,n of matrices; several of the basic programs were altered in this way. Other developments make certain programs more usable; an example is the handling of “missing” energy levels (see Section D.1.2), which was a problem in the first version of the program NMREN.作者: N防腐劑 時(shí)間: 2025-3-31 22:08
Computer Assistance in NMR Studies of Rate Processes,lines are functions of the lifetimes of the various reacting or reorienting species, or of the average residence times of spins in particular sites. These variable properties of lines can be observed, if the rates of exchange lie between 10.. and 10.. is the energy difference mentioned above.作者: Limited 時(shí)間: 2025-4-1 04:28
