Showing papers by "Nankai University published in 1996"
TL;DR: In this article, the chemistry of 2-(diphenylphosphino)pyridine is discussed, including the preparation, structure, reactivity and catalytic behavior of this short-bite ligand in mono- or binuclear and cluster complexes.
167 citations
TL;DR: Using combinatorial methods, this paper obtained the explicit polynomials for all elements in an arbitrary power of the companion matrix depending on n variables and provided some interesting applications and relationships to Waring's formula on symmetric functions, the general solution to homogeneous linear recurrence relations, the multiplicative inverse of formal power series, the generating function of compositions (of numbers).
92 citations
TL;DR: Two universal lossy data compression schemes, one with fixed rate and the other with fixed distortion, are presented, based on the well-known Lempel-Ziv algorithm, both of which are universal in the sense that for any stationary, ergodic source or for any individual sequence, the sample distortion performance is given almost surely by the distortion rate function.
Abstract: Two universal lossy data compression schemes, one with fixed rate and the other with fixed distortion, are presented, based on the well-known Lempel-Ziv algorithm. In the case of fixed rate R, the universal lossy data compression scheme works as follows: first pick a codebook B/sub n/ consisting of all reproduction sequences of length n whose Lempel-Ziv codeword length is /spl les/nR, and then use B/sub n/ to encode the entire source sequence n-block by n-block. This fixed-rate data compression scheme is universal in the sense that for any stationary, ergodic source or for any individual sequence, the sample distortion performance as n/spl rarr//spl infin/ is given almost surely by the distortion rate function. A similar result is shown in the context of fixed distortion lossy source coding.
76 citations
TL;DR: In this paper, the defect structure formed in LiNbO 3 :Mg varying with the Mg content is proposed, and the Li 2 O and Nb 2 O 5 contents, the Li/Nb ratio in the crystal and the density of the crystal are calculated by using the defect structures.
Abstract: on the basis of the Li vacancy model of intrinsic defects in LiNbO3 crystal, the defect structure formed in LiNbO 3 :Mg varying with the Mg content are proposed. The Li 2 O and Nb 2 O 5 contents, the Li/Nb ratio in the crystal, and the density of the crystal are calculated by using the defect structure. The calculated values are in good agreement with the reported experimental results.
56 citations
TL;DR: In this article, the CO-bridged anions (μ-RE)(μ-CO)Fe2(CO)6]- reacted with S8 to form the sulfur-centered anions, while reaction of 6 with SO2Cl2 produced the μ4-Se clusters.
49 citations
TL;DR: In this article, the manganese rich Fe/MnO FT-catalyst was prepared from nitrates by continuous coprecipitation and the copper as modifier of Fe/mnO was introduced by impregnation.
47 citations
TL;DR: The density matrices of a generic quantum-nondemolition system coupled to the reservoir of an infinite number of harmonic oscillators and to the reservoirs of an endless number of two-level systems are evaluated exactly and it is found that quantum decoherence is independent of temperature in the latter case.
Abstract: The density matrices of a generic quantum-nondemolition system coupled to the reservoir of an infinite number of harmonic oscillators and to the reservoir of an infinite number of two-level systems are evaluated exactly. It is found that quantum decoherence is independent of temperature in the latter case. \textcopyright{} 1996 The American Physical Society.
45 citations
TL;DR: A series of new dioxocyclams with pendant phenol groups has been synthesized from coumarin 3-carboxylic ester and linear polyamines in refluxing methanol/ethanol.
Abstract: A series of new dioxocyclams with pendant phenol groups has been synthesized from coumarin 3-carboxylic ester and linear polyamines in refluxing methanol/ethanol. Corresponding saturated cyclam der...
41 citations
TL;DR: Based on IR, elemental analyses and electronic spectra, these complexes are proposed to have extented DPHA-bridged structures and consist of two nickel, cobalt or manganese(II) in a distorted octahedral environment as mentioned in this paper.
40 citations
TL;DR: In this article, an improved equivalent circuit for the s-BLM is proposed, which is based on the solution of the coupled equations, and the curve-fitting procedure for testing the reliability of this method has been elaborated using a newly designed BLM simulator as well as a 50-point goodness-of-fit test.
38 citations
TL;DR: Algorithms with pseudopolynomial time complexity are proposed to solve both versions of the stochastic scheduling problem, under which optimal sequences are V-shaped with respect to mean processing times.
Abstract: We examine the problem of scheduling n jobs with a common due date on a single machine. The processing time of each job is a random variable, which follows an arbitrary distribution with a known mean and a known variance. The machine is not reliable; it is subject to stochastic breakdowns. The objective is to minimize the expected sum of squared deviations of job completion times from the due date. Two versions of the problem are addressed. In the first one the due date is a given constant, whereas in the second one the due date is a decision variable. In each case, a general form of the deterministic equivalent of the stochastic scheduling problem is obtained when the counting process related to the machine uptime distribution is a generalized Poisson process. A sufficient condition is derived under which optimal sequences are V-shaped with respect to mean processing times. Other characterizations of optimal solutions are also established. Based on the optimality properties, algorithms with pseudopolynomial time complexity are proposed to solve both versions of the problem. © 1996 John Wiley & Sons, Inc.
TL;DR: In this article, the authors discuss the properties of solvable complete Lie algebras, describe the structures of the root spaces, and prove that solvable Lie algesas of maximal rank are com-complete.
Abstract: In this paper, we will discuss the properties of solvable complete Lie algebra, describe the structures of the root spaces of solvable complete Lie algebra, prove that solvable Lie algebras of maximal rank are com-plete, and construct some new complete Lie algebras from Kac-Moody algebras.
TL;DR: A general splitting formula for index bundles of families of Dirac type operators was established in this article, which provides a positive answer to a question of Bismut and Cheeger (BC2).
Abstract: We establish a general splitting formula for index bundles of families of Dirac type operators. Among the applications, our result provides a positive answer to a question of Bismut and Cheeger (BC2).
TL;DR: In this article, the effect of a tautomeric isomeride on the magnetic interaction was discussed in relation to molecular mechanics and CNDO/2 methods, where the crystal structure of 2 has been determined.
TL;DR: In this article, an interpolation formula for symmetric functions and applications to some identities on symmetric function functions was obtained, including the one obtained by Gustafson and Milne on Schur functions.
TL;DR: It is shown that any sequential code in the class compresses some individual sequence at a rate strictly greater than the rate for that sequence given by the OPTA function.
Abstract: A general class of sequential codes for lossless compression of individual sequences on a finite alphabet is defined, including many types of codes that one would want to implement. The principal requirement for membership in the class is that the encoding and decoding operations be performable on a computer. The OPTA function for the class of codes is then considered, which is the function that assigns to each individual sequence the infimum of the rates at which the sequence can be compressed over this class of sequential codes. Two results about the OPTA function are obtained: (1) it is shown that any sequential code in the class compresses some individual sequence at a rate strictly greater than the rate for that sequence given by the OPTA function; and (2) it is shown that the OPTA function takes a value strictly greater than that of the Kolmogorov (1965) complexity rate function for some individual sequences.
TL;DR: The influence of the counterion X group on the toxicity of organotins was discussed in this article, where it was found that when X is a small easily ionizable group, it has little effect on toxicity; however, when it is a large organic groups, it does change the bioactivity of the organotin.
Abstract: The inhibition by 20 organotin compounds (R n SnX 4-n ), which included some newly synthesized pesticides, of the growth of two green algae (Scenedesmus obliquus and Platymonas sp.) was studied. The influence of the counterion X group on the toxicity of organotins was discussed. The destruction of submicrostructures of the algal cell by organotins was viewed by micrography and electron microscope scanning. It was found that the toxicity of the organotins varied significantly according to their substitution. The order of toxicity is tri- » di- ≥ mono-organotins. Within the same substituent series, the toxicity depends on the properties of both R and X groups. The larger and the more lipophilic the R group, the more toxic is the organotin. The influence of the X group is more complex: when X is a small easily ionizable group, it has little effect on the toxicity; however, when it is a large organic group, it does change the bioactivity of the organotin. Large organic groups may influence the polarizability of the central tin atom, and so change the toxicity of organotins.
TL;DR: The crystal and molecular structures of the Fe-Hg complexes (CO) 4 Fe(μ-Ph 2 Ppy)Hg(μCl) 2 HgCl 2 (3), (CO), 3 Fe(mPhPMepy)2 Hg(mCl 2 2 ) 2 CH 2 Cl 2 (5) and (CO, 3 Fe-PhPMEPy) 2 hg(mi-I) 2HgI 2 · 3CH 2 Cl2 (6) have been determined as mentioned in this paper.
TL;DR: In this paper, a novel photonic logic gate model based on a thin film containing the light-controlled absorption of the biological photochrome bacteriorhodopsin (BR) was presented, and an example demonstrating the logic operation of the device was given for a possible practical application of an incoherent two-dimensional multiple grey level image subtraction.
TL;DR: The binuclear complexes (CO)3Fe(μ-Ph2Ppy)2MXn) were prepared from the new type of organometallic tridentate ligand, which contains both a basic metal center and bridging phosphine ligands as mentioned in this paper.
TL;DR: A complex of palladium(II) chloride with tris(2-pyridylmethyl)amine (TPA) has been synthesized and characterized by X-ray diffraction analysis.
01 Jan 1996
TL;DR: Danes' Drop Theorem is generalized to locally convex spaces in this paper, where the drop theorem is generalized in a convex space and the drop-theorem is shown to be applicable to locally-convex spaces.
Abstract: Danes’ Drop Theorem is generalized to locally convex spaces.
TL;DR: It is demonstrated that when this version of the gold-washing algorithm is applied to encode a stationary, /spl phi/-mixing source, the expected distortion performance converges to the distortion rate function of the source as the codebook length goes to infinity.
Abstract: For pt.I see ibid., vol.42, no.3, p.803-21 (1996). Two versions of the gold-washing data compression algorithm, one with codebook innovation interval and the other with finitely many codebook innovations, are considered. The version of the gold-washing algorithm with codebook innovation interval k is a variant of the gold-washing algorithm such that the codebook is innovated once every k+1 source words during the process of encoding the entire source. It is demonstrated that when this version of the gold-washing algorithm is applied to encode a stationary, /spl phi/-mixing source, the expected distortion performance converges to the distortion rate function of the source as the codebook length goes to infinity. Furthermore, if the source to be encoded is a Markov source or a finite-state source, then the corresponding sample distortion performance converges almost surely to the distortion rate function. The version of the gold-washing algorithm with finitely many codebook innovations is a variant of the gold-washing algorithm in which after finitely many codebook innovations, the codebook is held fixed and reused to encode the forthcoming source sequence block by block. Similar results are shown for this version of the gold-washing algorithm. In addition, the convergence speed of the algorithm is discussed.
TL;DR: E. coli L-asparaginase was modified with N,O-carboxymethyl chitosan in the presence of normal product L- aspartic acid, which protected the active site of the enzyme.
Abstract: E. coli L-asparaginase was modified with N,O-carboxymethyl chitosan in the presence of normal product L-aspartic acid, which protected the active site of the enzyme. The modified enzyme remained high catalytic activity, showed greater stability against trypsin and alpha-chymotrypsin, but lost its activity more rapidly at high temperature (> 45 degrees C) than did the native enzyme. When tested in vivo, the plasma half-life of the modified enzyme (t1/2 = 40 hr) was over 33 times longer than that of the native enzyme (t1/2 = 1.6 hr). The results showed that the modified L-asparaginase may be much more useful than did the native enzyme for clinical treatments of tumors.
TL;DR: In this paper, the derivation algebra of the finite dimensional Heisenberg algebra H over the complex field C was studied and proved to be a simple complete Lie algebra, and the holomorph h (H) of H is not a complete lie algebra.
TL;DR: In this paper, a compound upconversion mechanism involving both stepwise two-photon absorption of a single ion and cooperative energy transfer between two ions is observed, and the methods and procedures to analyze the phenomenon and mechanism of luminescence are presented.
TL;DR: In this article, the adsorption behavior of eight organotin species and Sn4+ (SnCl4) on estuarine sediments has been reported for the first time.
TL;DR: In this article, an electrode reaction mechanism on the alloy surface (i.e., the mechanism of nickel-catalysis, hydrogen adsorption and hydrogen-transference) has been suggested.
TL;DR: In this article, a two-step mechanism of dehydroxylation may be present, and it dominates the de-hydroxylization and dealumination processes at different temperatures.
TL;DR: In this paper, the iodide ion sensitivity of a solid-supported bilayer lipid membrane (s-BLM) containing buckminsterfullerene(C60) as an electron mediator has been investigated using the cyclic voltammetry technique.
Abstract: The iodide ion sensitivity of a solid-supported bilayer lipid membrane (s-BLM) containing buckminsterfullerene(C60) as an electron mediator has been investigated using the cyclic voltammetry technique. We have shown that C60 in a lipid bilayer environment produces a unique and simple system for the detection of iodide. The sensitivity of C60-containing s-BLM to I− is excellent with a linear response in the range from 10−8 to 10−2 M. The use of fullerene C60-doped s-BLMs as sensors and devices for detecting other species is proposed.