Showing papers by "Nankai University published in 1988"
TL;DR: A method of amplitude-compensated matched filtering is presented, which yields much better discrimination and a sharper autocorrelation peak compared with the classical matched spatial filter and the phase-only one.
Abstract: A method of amplitude-compensated matched filtering is presented. This yields much better discrimination and a sharper autocorrelation peak compared with the classical matched spatial filter and the phase-only one. By computer simulation in the case of alphanumeric characters, it is concluded that, although the phase information is significantly more important, in the case of a matched filter, the amplitude is important too. Three-dimensional graphs of autocorrelation and cross-correlation are also provided.
84 citations
59 citations
TL;DR: By using the penalty method and Ekeland's variational principle, the authors proves the optimality condition for a solution to a nonconvex optimal control problem, in which the system is governed by a strongly monotone variational inequality.
Abstract: By using the penalty method and Ekeland’s variational principle, this paper proves the optimality condition for a solution to a nonconvex optimal control problem, in which the system is governed by a strongly monotone variational inequality.
38 citations
TL;DR: In this paper, the reaction of monoanions derived from (μ-S2)Fe2(CO)6 and RMgBr (R C2H5) with di-acid chlorides at room temperature unexpectedly produced tetranuclear complexes in high yield.
34 citations
TL;DR: In this article, the authors define conditions tangentielles de type Nagumo, i.e., x'(t)+Ax(t)∈G(xC(H), x(o)=x 0 ∈K, ∀t∈[o,T], x(t]∈K ou A est un operateur elliptique and Kn'test pas necessairement compact.
Abstract: On etudie un probleme de la forme: x'(t)+Ax(t)∈G(xC(H), x(o)=x 0 ∈K, ∀t∈[o,T], x(t)∈K ou A est un operateur elliptique et K n'est pas necessairement compact. On trouve des conditions tangentielles de type Nagumo
24 citations
TL;DR: This investigation studied the preparation and clinical trial of DNA immunoadsorbent for hemoperfusion in systemic lupus erythematosus (SLE) therapy, and a patient with severe SLE was treated with the above adsorbent in hem operfusion.
Abstract: This investigation studied the preparation and clinical trial of DNA immunoadsorbent for hemoperfusion in systemic lupus erythematosus (SLE) therapy. DNA was complexed with blue tetralium (BT), then mixed with collodion, and finally adsorbed on macro-porous spherical polymeric adsorbent. The percentage of DNA thus immobilized was 98-98.5%, and no release was detected during hemoperfusion. A patient with severe SLE was treated with the above adsorbent in hemoperfusion. The patient was in coma, with high anti-DNA antibody and abnormal immune complex levels, which fell sharply from 56.34% to 0.8% after 2.5 h of whole-blood hemo perfusion. There were no major clinical complications, and 2 weeks later, her proteinuria level became normal and immune complex levels were sustained. She was then discharged from the hospital and has been in good health for more than 1 year.
23 citations
TL;DR: In this paper, the Raman spectra of β-BaB 2 O 4 has been investigated as a function of hydrostatic pressure from 0 to 65 kbar, and around 50 kbar a structural phase transition was observed.
22 citations
TL;DR: In this article, the authors study the "almost equidistance" described by the form of "relative error" and show that it is not a strictly (theorized) "equidistant operator" but a form of absolute error.
17 citations
TL;DR: The results suggest that the signals generated by 100 mM KCl may represent an attenuated form of SD which requires a functioning SN, and that this stimulation could be a useful model for studying neurotransmitter interactions in the propagation of the SD phenomena.
16 citations
TL;DR: In this article, the heats of eight α-amino acids (N -acetyl glycine, proline, threonine, serine, valine, glycine, isoleucine and α -aminoisobutyric acid) were determined in aqueous solution at 25.0±0.1°C and I (ion strength) = 0.1 mol dm −3 (NaClO 4 ) by means of a model RD-1 automatic conduction calorimeter.
16 citations
TL;DR: In this article, a 6.6mm efficient power-combining has been achieved by introducing Gunn diodes directly into a quasi-optical resonant cavity, and the structure, the principle and the experiments are reported.
Abstract: 6mm efficient power-combining has been achieved by introducing Gunn diodes directly into quasi-optical resonant cavity. The structure, the principle and the experiments are reported.
TL;DR: In this article, the molecular structure of 2NiCl2 was determined by X-ray crystallography and the molecular configuration is one of a W-frame with C2v symmetry.
14 Jul 1988
TL;DR: In this article, the relation between the light energy and the surface roughness is deduced for the case that a laser (or incoherent) beam incidents on a rough surface, wherefrom a rather simple method for roughness measurement is presented.
Abstract: With a simplified statistical model,the relation between the light energy and the surface roughness is deduced for the case that a laser (or incoherent) beam incidents on a rough surface, wherefrom a rather simple method for surface roughness measurement is presented.
TL;DR: The background of Chinese computing and the implementation of a Chinese-English microcomputer system which is now being used in several places including the PRC are discussed.
Abstract: Computing in the People's Republic of China has recently begun to gain momentum. Because of China's large population, its computing requirements are of worldwide interest. This article discusses the background of Chinese computing and the implementation of a Chinese-English microcomputer system which is now being used in several places including the PRC.
TL;DR: In this paper, a quasi-optical power combiner operating in millimeter-wave with lumped parameters source-array is described, and the location and corfiguration of the source array are determined.
Abstract: A quasi-optical power combiner operating in millimeter-wave with lumped parameters source-array is described. The location and corfiguration of the source array are determined.
TL;DR: In this paper, the crystal structures of bis(cyclopentylcyclopentadienyl)titanium dichloride and bis(cyclohexylcycloencinnyl-cyclopentadieneyl)-titium dichlorides have been determined by X-ray diffraction and refined to conventional R factors of 0.0345 for 1191 reflections and 0.0818 for 1481 reflections.
TL;DR: In this paper, the Raman spectra of KNSBN single crystals with different compositional ratios of Sr/Ba and K/Na have been measured and the limited softening of a lattice mode v 2 and the gradual disappearance of another latticemode v 4 are verified as the most important features related to the ferroelectric-paraelectric phase transition in this system.
Abstract: Raman spectra of KNSBN single crystals with different compositional ratios of Sr/Ba and K/Na have been measured. The limited softening of a lattice mode v 2 and the gradual disappearance of another lattice mode v 4 are verified as the most important features related to the ferroelectric-paraelectric phase transition in this system.
TL;DR: In this paper, the optimization theory and calculation for waveguide cavity solid state power combiner in centimeterwave and millimeter-wave region are discussed, where the objective is to obtain the best structure and the best parameters by CAD(computer-aided design) technique so that higher output power, higher combining efficiency, compactness and steady properties can be achieved for the combiner.
Abstract: The optimization theory and calculation for waveguide cavity solid state power combiner in centimeter-wave and millimeter-wave region are discussed. The optimization theory of the combiner is to obtain the best structure and the best parameters by CAD(computer-aided design) technique so that higher output power, higher combining efficiency, compactness and steady properties can be achieved for the combiner.
TL;DR: In this article, the reversed matrix representation of the Lambert-Beer law (CPA matrix method) is applied in simultaneous spectrophotometric determinations of niobium and tantalum in the presence of tartaric acid.
TL;DR: In this paper, the transient forward bias current of double injecting devices was studied and it was shown that a much higher voltage is required in compensated material to obtain the same current as in the intrinsic; intrinsic and compensated samples show similar transient current responses but the compensated devices are much slower.
Abstract: The drift mobility in compensated a-Si:H as measured by standard T.O.F. is much less than in intrinsic material; presumably due to charge defects. In order to determine other differences in behavior between compensated and intrinsic material, we have studied the transient forward bias current of each in double injecting devices. We have found that: a) a much higher voltage is required in compensated material to obtain the same current as in the intrinsic; b) intrinsic and compensated samples show similar transient current responses but the compensated devices are much slower; c) the steady state current degrades in the compensated current but not in the intrinsic; and d) mobilities obtained by the voltage pulse technique in compensated material are at least three times larger than by the standard T.O.F. technique.
TL;DR: In this paper, the properties and structure of a power combiner which consists of two Gunn diodes in rectangle waveguide was investigated on 6mm wave band, and the principle and experiments were reported.
Abstract: On 6mm wave band, the properties and structure of a power combiner which consists of two Gunn diodes in rectangle waveguide, the principle and experiments are reported. The theory is suitable for the power combiner operating below long-millimeter-wave region.
TL;DR: In this paper, the properties and expression of vector-value elliptic functions, vector-valued doubly-periodic Riemann boundary-valued problems, boundary value problems with a straightline being the boundary, and the relation between these two problems were investigated.
TL;DR: In this article, 14 TCNQ (7,7,8,8-tetracyanoquinodimethane) simple and complex salts of the type ML(TCNQ) have been synthesized, where M = nickel or copper and L = macrocyclic ligands.
TL;DR: The FHF technique permits a greatly relaxed spatial-filter alignment requirement, use of a white-light source, negligible color cross talk, and high diffraction efficiency of the spatial filter.
Abstract: Theoretical and experimental analyses of color-image pattern recognition using a multiwavelength Fresnel holographic filter (FHF) are presented. The FHF technique permits a greatly relaxed spatial-filter alignment requirement, use of a white-light source, negligible color cross talk, and high diffraction efficiency of the spatial filter.
TL;DR: The compound CoCl 2 ·6H 2 O, in the presence of zinc powder, reacts with dppe and CO under mild conditions to form Co I Co II (dppe) 2 (CO)Cl 3.
TL;DR: In this article, the kinetics of isomerization reaction of unsymmetrical dialkylthiolatohexacarbonyldiiron (μ-ph-CH 2 S) (μ′-tBuS)Fe 2 (CO) 6 has been studied by means of dynamic 1 H NMR within the temperature range 35 to 110 °C with 10 selected points.
TL;DR: In this paper, the alpha transfer mechanism for heavy-ion reactions from a cov-channel to an ion-channel was studied using the nuclear molecular orbital theory, and both a direct potential and an exchange potential were included in the calculations.
TL;DR: In this article, the reaction of (u-RS)2 (XMgS) Fe2 (CO)2 with CpFe 2I gave thirteen new compounds, including Fe2(CO)4, which contained two Fe(2+) in low spin state with a coordination number of six.
Abstract: The reaction of (u-RS)2 (XMgS) Fe2 (CO)2 with CpFe (CO)2I gave thirteen new compounds (u-RS) [CpFe (CO)2S] Fe2 (CO)4. Mossbauer spectra were obtained at 80K. Two quadrupote doubles (A set and B set) were present. The ratio of areas between A set and B set was close to 2∶1. The molecule of every compound contained two Fe (2+) which were in the same chemical environment of low spin state with a coordination number of six, and the Mossbauer parameters of the two Fe (2+), IS=0.2–0.3 mm/s, QS=0.7–0.8 mm/s. In addition, the molecule contained a Fe (3+) in low spin state which was proved by ESR. Its Mossbauer parameters, IS=0.4–0.5 mm/s. QS=1.5±1.6 mm/s, The molecular structure of (u-MeS) [u-CpFe (CO)2S] Fe2 (CO)4 was determined by X-ray diffraction, monoclinic form, space group P21/n z=4, unit cell parameters, a=7.90A, b=10.77A, c=22.53A.
TL;DR: In this paper, the thermodynamics of a one-dimensional diluted Heisenberg magnet of classical spins in the presence of an external magnetic field was calculated, and the solutions were obtained as sums over the properties of finite-length chains weighted by their probabilities of occurrence in the diluted system.
Abstract: The thermodynamics of a one-dimensional diluted Heisenberg magnet of classical spins in the presence of an external magnetic field is calculated. This model is representative of systems such as (CD3)4NMnxCu1-xCl3 and CsMnxMg1-xBr3. The magnetisation, susceptibility, energy and specific heat are determined as functions of the magnetic concentration and external field intensity for both ferromagnetic and antiferromagnetic couplings. The solutions presented are obtained as sums over the properties of finite-length chains weighted by their probabilities of occurrence in the diluted system.