bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: The One‐Electron Outer‐Sphere Oxidation of Iodide and of Thiocyanate Ions by Transition Metal Complexes: Linear Free‐Energy Relationships
Authors: NORD G. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Chemical Applications of Magnetic Anisotropy
Authors: SYAMAL A. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Quantum Mechanical ab initio Studies of the Structures and Stabilities of Halogen Azides XN3 (X: F, Cl, Br, I).
Authors: OTTO M. , LOTZ S. D. , FRENKING G. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Structure and Magnetic Behavior of the Binuclear Compounds Cs3FeS3, Na3FeS3, and Na3FeSe3.
Authors: BRONGER W. , RUSCHEWITZ U. , MUELLER P. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Strontium Dimagnesium Iron Octahydride, SrMg2FeH8, Containing Octahedral (FeH6)4‐ Complex Anions.
Authors: HUANG B. , YVON K. , FISCHER P. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: The Corrosion of Nickel Under Cathodic Polarization in Molten NaNO3
Authors: HARA M. , KANNO H. , SHINATA Y. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Electron Transfer and Bond Breaking. Examples of Passage from a Sequential to a Concerted Mechanism in the Electrochemical Reductive Cleavage of Arylmethyl Halides
Authors: ANDRIEUX C. P. , LE GORANDE A. , SAVEANT J.‐M. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Tetrahydrolipstatin: Degradation Products Produced by Human Carboxyl‐ Ester Lipase.
Authors: STALDER H. , OESTERHELT G. , BORGSTROEM B. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Regiospecific Opening of 1,2‐Epoxides with Acetone Cyanohydrin Under Mildly Basic Conditions.
Authors: MITCHELL D. , KOENIG T. M. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Is 2,3,5,6‐Tetrakis(methylene)bicyclo(2.2.0)hexane the Product of Photolyzing 7‐Oxa(2.2.1)hericene?
Authors: LIU R. , ZHOU X. , HINTON J. F. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: The Photocyclization of N‐Acyl‐2‐Nitrodiphenylamines to Phenazine N‐ Oxides: Scope and Mechanism.
Authors: FASANI E. , PIETRA S. , ALBINI A. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Reactions of Salicylaldehyde with Some Conjugated Olefins.
Authors: YAMAGUCHI S. , SAITOH T. , KAMIUMEZAWA M. , ENOMOTO H. , KAWASE Y. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: New Cyclization Reactions of 3‐Dialkylamino‐4‐aminopyridines Using Conditions for Nitration.
Authors: MIURA Y. , TAKAKU S. , NAWATA Y. , HAMANA M. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of Pyridine‐2(1H)‐thione and Thieno(2,3‐b)pyridine Derivatives.
Authors: ELGEMEIE G. E. H. , ALNAIMI I. S. , ALARAB H. F. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: New Synthesis of 5‐Amino‐5‐deazaflavin Derivatives by Direct Coupling of 5‐Deazaflavins and Amines.
Authors: KIMACHI T. , YONEDA F. , SASAKI T. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Pyrimidine Derivatives. Part 7. Nucleophilic Reactions of 5‐Bromo‐1‐( bromoalkyl)‐6‐bromomethyl‐2,4(1H,3H)‐pyrimidinediones.
Authors: KINOSHITA T. , TAKAISHI Y. , OKUNAKA T. , OHWADA T. , FURUKAWA S. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Asymmetric Alkylation of Chiral α,β‐Unsaturated Lactones.
Authors: KATO K. , SUEMUNE H. , SAKAI K. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis and Psychotropic Properties of 1‐Triorganylsiloxy‐ and 1‐ Triorganylgermoxygermatranes.
Authors: LUKEVICS E. , IGNATOVICH L. , SHILINA N. , GERMANE S. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis and Antibacterial Activity of Isocephems
Authors: ASZODI J. , BONNET A. , CHANTOT J. F. , COSTEROUSSE G. , TEUTSCH G. 
Published: July 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
A method for computing electrical transients of transmission lines by numerical laplace transform
Authors: Okumura Kohshi , Kishima Akira , Tokoro Setsuo 
Published: July 2007

AbstractThis paper proposes a numerical method of solution for the transient phenomena on transmission line terminated by simple load, including a nonlinear element. The method is based on the discrete numerical Laplace transform and its inverse, utilizing the discrete Fourier transform. Problems and the solutions in the method are discussed. The feature of the method is that the voltage, current and surge impedance matrix of the transmission line are specified on the complex frequency (s) plane, while the boundary condition is given on the time (t) domain. Numerical solutions in the two regions are combined by Laplace transform and its inverse. The Laplace transform and its inverse by discrete Fourier transform have a drawback in that the accuracy of the computation deteriorates at t = 0 for stepwise change of the waveform. A method to solve this problem is described. For the latter half of the sampling point sequence in the Laplace and inverse transforms, the computation error is increased, which effectively halves the sampling points in the computation of the reflected wave. For this problem, a method is presented by which the accuracy of the computation is retained for each calculation of the reflected wave, keeping constant the number of sampling points. The convolution required in the calculation of the boundary condition is time‐consuming, and a solution for this is proposed. As an example of the solution, the transient phenomenon in the multiconductor transmission‐line terminated by the surge arrester is calculated, taking the skin effect into consideration.
Performance analysis of passive bus user network interface with multiplexed channels and its transmission characteristics
Authors: Inoue Yuji , Okumura Yasuyuki , Hayashi Kazuhiro 
Published: July 2007

AbstractPassive bus user‐network interface which connects multiple terminals to the network terminating equipment (NT) is promising as ISDN user network interface. Problems in realizing this interface are the discontinuity of phase and/or amplitude between channels and the effect of parallel operation of terminals on the transmitted or received waveform. This paper proposes a generalized DPLL performance analysis method based on a time‐variant Markov chain model with special reference to the passive bus user network interface with multiplexed channels whose mean phases are different. A new waveform simulation method that allows plural drivers to transmit is also proposed in designing a transformer. The effectiveness of these methods is demonstrated experimentally. It is also shown experimentally that the sampling margin derived from the DPLL jitter and the waveform distortion determines the maximum transmission distance in the passive bus system without a line equalizer.
Analysis of common memory access contention with nonpreemptive priority oiscipline
Authors: Sumita Shuichi 
Published: July 2007

AbstractMultiprocessor controlled electronic switching systems suffer from performance degradation due to common memory access contention. Therefore, there have been many studies on the common memory access contention. However, most of them deal with the case of equal access rate. This paper considers common memory access contention in multiprocessor controlled switching systems, in which one of the processors, called MCP, has a different common memory access rate than the other processors, called CPs. In this multiprocessor system, common memory access requests are served according to non‐preemptive priority discipline based on the processor type. This common memory access contention is modeled as a finite source queueing system with nonpreemptive priority discipline. The model is analyzed and the effect of nonpreemptive priority discipline on system performance (number of instruction steps executed) is evaluated, compared with the ordinary FIFO discipline.
Information preserving transmission systems of continuous‐tone picture signals for picture data base
Authors: Saitoh Takahiro , Harashima Hiroshi , Miyakawa Hiroshi 
Published: July 2007

AbstractIn a picture data base the picture quality required depends on the actual application of the picture signal. Therefore efficient reversible coding systems are needed. On the other hand, users demand easy searching of the required pictures. Considering the above facts, two kinds of information preserving transmission systems‐System 1 and System 2‐are proposed for picture data base treating 8‐bit PCM picture signals. In these systems, first, reference picture signal for user's reference are transmitted. Next, a supplementary transmission is performed. In System 1 a degenerate differential signal between PCM picture signal and reference picture signal is encoded and transmitted. In System 2, PCM picture signal is reversibly encoded and transmitted directly. In this paper, four kinds of coding systems are considered as coding system for reference pictures. The best performance has been achieved by discrete cosine transform coding. In addition, this paper presents a method for determining the better system in performance of supplementary transmissions of the two systems on the basis of signal‐to‐noise ratio of the reference picture.Finally, the realization of a transmission system is shown which combines the advantages of both Systems 1 and 2 by choosing the better system on the basis of coding performance at each reference picture.
Mode field radius measurements in single‐mode fibers by nfp technique
Authors: Ohashi Masaharu , Kitayama Ken‐Ichi , Seikai Shigeyuki 
Published: July 2007

AbstractThere are various methods for measuring the mode field radius in single‐mode fibers. However, measurement accuracy of the methods has not been reported yet. This paper describes the error factors for the mode field radius measurement by NFP technique to improve the accuracy of this technique. The input optical (10) sensitivity of the infrared (IR) vidicon camera is investigated which affects the precision of the NFP technique. As a result, the nonlinearity and shading distribution of the IR vidicon camera are clarified. Moreover, error factors for the technique are investigated. On the basis of investigation, the measurement conditions for this technique to obtain high accuracy are specified. The mode field radius of various types of fibers is increased under these conditions. As a result, measurement of the mode field radius became possible with reproduction error of less than 0.1 μm.
A study of electromagnetic field around delay line having various constructions of outer conductor
Authors: Okamoto Kunihiko 
Published: July 2007

AbstractWith a view to application of the electromagnetic field around a delay line to the mobile communication, a method of calculation and an analysis of characteristics of such a field around a delay line with various configurations of outer conductors have been presented. For the calculation of the electromagnetic field around the delay line, the magnetic and electric Hertz vectors are used. Variations of the propagation constant and the electromagnetic field of the line with and without the shielding effect of the outer conductor have been calculated. The effect on the magnetic and electric sources on the external surface of the line has been studied. The electromagnetic field around the delay line can be derived as the sum of the Hertz vectors generated by various sections of the line. It can be characterized as the convergent field when the line is uniform and homogeneous. In this paper, a new model of the line for the radiation field has been proposed in which shielded and unshielded delay lines are placed periodically. Both models are compared for the effect of the phase constant and the end effect. The effects of the nonuniformity in the line and also the reflection at the end and the curved section on the convergent field as well as the attenuation constant are studied in detail and verified experimentally. Finally, it is pointed out that the inductive field is predominant in the case of an outer conductor with an imperfect shielding effect.
SIN type FM demodulator using digital signal processing
Authors: Hagiwara Masafumi , Nakagawa Masao 
Published: July 2007

AbstractFM demodulators using digital signal processing (DSP) technology are advantageous over analog type FM demodulators becasuse they have stable behavior, high reliability, compactness by LSI, and no need for adjustment. In this paper, we propose a new FM demodulator called SIN type FM demodulator which uses DSP technology. It reduces hardware complexity compared with TAN type FM demodulator which has the best characteristic among many FM demodulators using DSP. For example, SIN type needs only one A/D converter, while TAN type needs two. As for ROM, SIN type needs one‐third of ROM which TAN type requires. The circuit of SIN type required for phase detector is substantially simplified. First, the circuit configuration and operation principle of SIN type will be described and SIN type circuit is shown to be significantly simplified compared with TAN type circuit. Then, through computer simulation the performance of SIN type is shown to be much better than the Digital Quadrature type, which has the simplest structure of all the FM demodulators using DSP.
An analysis of propagation characteristics at 34.5 and 11.5 GHz between ETS‐II satellite and kashima station–on the approximate expression
Authors: Hoshiyama Mitsuo , Nishitsuji Akira , Awaka Jun , Furuhama Yoji 
Published: July 2007

AbstractWe have been studying the propagation characteristics of the electromagnetic wave at high elevation angle between ETS‐II and Kashima station, aiming at the precise and continuous analysis by computer. We have succeeded in the computer analysis of the propagation characteristics. However, this was time consuming and a real‐time analysis could not be realized. From such a viewpoint, approximate expressions are derived for the size distribution of the precipitation to be calculated from the measured attenuation and the radar echo, to analyze the precise attenuation characteristics of the waves. In the analysis, the measured attenuations of 34.5 and 11.5 GHz, radar echo at 5.33 GHz and the ground temperature are used. The layered precipitation model is employed in the calculation of the rainfall and snowfall in the slant propagation path. The location of the bright band is determined from the ground temperature, decreasing rate of atmospheric temperature, and reflection coefficient of the radar echo. An approximate expression is introduced which determines the size distribution of the precipitation from the radar echo reflection coefficient and the attenuation measured at 34.5 GHz. By comparing the measured values of attenuation at 11.5 GHz with the theoretical ones, it was verified that the estimation is accurate to within 0.3 dB. Thus, a good result was obtained for real‐time precise analysis.
A method of time‐domain approximation using tbt polynomials as the denominator of the transfer function
Authors: Kishi Genya , Kida Takuro , Fukuda Yutaka 
Published: July 2007

AbstractTBT polynomials are polynomials with roots which interpolate the poles of the transfer functions of the maximally flat amplitude filter and the maximally flat delay filter. This paper discusses a method in which a desired waveform is approximated by the impulse response of the transfer function using TBT polynomials as the denominator and gives a selection principle for two parameters for which the squared error in the time domain is minimized. Examples are given to show that the impulse response obtained by this method can approximate various practical desired waveforms very well. The above method based on the TBT polynomial is compared to the method involving the iterative process in which the least squares method is applied alternately to denominator and numerator of the transfer function to further decrease the squared error. It is shown that the approximation error for the above method is only about 1.5 times larger than that by the latter method. The properties of the approximated waveform are examined when not only the square norm but also the nth norm of error are used as error measures. Moreover, considering the band limiting in a real transmission line, we investigate a method of waveform approximation in the time domain in which the attenuation is prescribed and minimization is accomplished by the quadratic programming method. The method based on the TBT polynomials also performs well in this case.
A function measuring the centrality (or mediality) of an edge in an undirected network with edge capacity
Authors: Sengoku Masakazu , Shinoda Shoji 
Published: July 2007

AbstractThere have been many investigations regarding a function measuring the centrality of a vertex in a network. In a network, the edges are as important as the vertices; nevertheless, almost no investigation has been made regarding a function measuring the centrality of an edge. The centrality of a vertex is often measured by the degree of relation between vertices (e.g., distance, capacity and the like). Similarly, in this paper, the centrality of an edge is measured by the degree of relation between edges in a connected and undirected network with edge capacity. We propose a new method for evaluating the degree of relation between edges by the capacity of the minimum cutset with the edges. It is shown that this degree of relation between edges is the quasi‐distance which satisfies the triangular inequality and other relations. Also, we introduce several analogous to the center of vertices, namely, the center, radius, diameter and median of edges, and examine their basic properties. Further, we propose several indices to represent the centrality of an edge and use them in an attempt of generalization to a function measuring the centrality of an edge. These functions may be useful in evaluating the vulnerability of a network which can be modeled such that two edges drive flow in common (simultaneously).