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Chapter
Conference Paper
Si**g Pan
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Chapter and Conference Paper
Phase Diagram of the Nb—Sn System
The phase diagram of the Nb—Sn system is presented. In the equilibrium state three intermetallic compounds are formed: Nb3Sn, Nb6Sn5, and NbSn2. The compound Nb6Sn5 is stable over a narrow temperature range (815 ...
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Chapter and Conference Paper
Phase Diagram of the Nb—Nb5 Si3 System and Crystal Structure of the Compound Nb3Si
The phase diagram of the Nb—Nb5Si3 system is presented. In alloys of this system there is a compound Nb3Si formed by a peritectic reaction at 1880°C; it is stable down to 1800°. Prolonged annealing at lower tempe...
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Chapter and Conference Paper
Reasons for Changes in the Superconducting Properties of Nb3Sn
A review of investigations relating to the phase diagrams of the Nb-Sn system and the superconducting properties of the compound Nb3Sn is presented. The high-niobium side of the Nb-Sn phase diagram is studied by ...
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Chapter and Conference Paper
Phase Diagram of the Nb—Ge System
The phase diagram of the Nb-Ge system is plotted. Three intermetallic compounds are formed in the Nb-Ge system: Nb3Ge, Nb5Ge3, and NbGe2. The compound Nb3Ge melts with decomposition in a peri-tectic reaction at 1...
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Chapter and Conference Paper
Effect of Nitrapyrin on the Inhibition of Nitrification in Some Paddy Soils of China
Nitrification-denitrification is an important mechanism of N loss in paddy soils. How to prevent such loss is a matter of primary importance (1–4). The present article deals with the effect of Nitrapyrin (2-ch...
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Chapter and Conference Paper
Chemical Equilibria of Sulfides as Studied with a Hydrogen Sulfide Sensor
Owing to its theoretical and practical significance, the subject of sulfides in paddy soils has attracted much attention to many soil scientists(l,2) For the determination of sulfides in soils, chemical method...
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Chapter and Conference Paper
Mode Coupling Coefficients and Brewster’s Law of Waveguide Gratings
We propose a method for calculating mode coupling coefficients of a guided wave obliquely incident on a grating with a rather large depth and an arbitrary index. It is shown that the null coupling incident ang...
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Chapter and Conference Paper
Laboratory EXAFS Systems
Great progress has been made in the experimental technique to make EXAFS measurements both in the laboratory and at synchrotron facilities. While the great majority of work is now being carried out at synchrot...
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Chapter and Conference Paper
Algorithms for polynomial division
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Chapter and Conference Paper
Fast and efficient parallel algorithms for the exact inversion of integer matrices
Let A = (aij) be a nonsingular n×n integer matrix such that log ∥A∥ ≤ no(1), \(\mathop {\max }\limits_{i,j}\) |aij| ≤ ∥A∥ ≤ n...
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Chapter and Conference Paper
A logarithmic boolean time algorithm for parallel polynomial division
A new algorithm is presented to improve by a factor of log m the estimates for both parallel and sequential time complexity of division with a remainder of two integer polynomials. Under the parallel model, th...
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Chapter and Conference Paper
Extension of the parallel nested dissection algorithm to path algebra problems
This paper extends the author's parallel nested dissection algorithm of [PR] originally devised for solving sparse linear systems. We present a class of new applications of the nested dissection method, this t...
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Chapter and Conference Paper
Formulation of Reissner-Mindlin Moderately-Thick/Thin Plate Bending Elements
Nine-node quadrilateral element (HP-9) and twelve-node quadrilateral element (HP-12) are formulated on the basis of Reissner-Mindlin plate bending theory by the assumed-stress type hybrid method. Both are free...
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Chapter and Conference Paper
A General Survey of Surface Radiation and Heat Balance Investigation over the Qinghai-**zang Plateau
The protuberance of the Qinghai-**zang Plateau plays an important role in the formation of the general circulation and thus affects the weather and climate not only over China but over Asia and even the Northe...
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Chapter and Conference Paper
The Characteristics of Radiation Balance Components During Qxpmex in 1979
Many different studies about synoptic meteorology and climatology pointed out that as a massive prominence the Qinghai-**zang Plateau have an important influence on the weather and climate of China, as well as...
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Chapter and Conference Paper
The Calculation of KI and KII for a Cracked Body Subjected to Composed Loads by Boundary Collocation Method
When boundary collocation method is used to obtain numerical solutions of KI and KII, the second term of the odd part of Williams stress function must be thrown by since this particular term is identical to zero....
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Chapter and Conference Paper
Fast and efficient parallel linear programming and linear least squares computations
We present a new parallel algorithm for computing a least squares solution to a sparse overdetermined system of linear equations Ax=b such that m×n matrix A is sparse and the graph, G=(V,E), of the matrix ...
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Chapter and Conference Paper
Ultrasonic Attenuation as a Trace of Growth of Fatigue Crack in Steels
Two comprehensive overviews on ultrasonic quantitative nondestructive evaluation and materials characterization were recently given by Thompson [1] and Green [2] respectively. Ultrasonic attenuation measuremen...
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Chapter and Conference Paper
Review of Nisoldipine Binding Studies
Nisoldipine exhibits very high affinity binding to smooth and cardiac muscle membranes. Calcium channels in isolated membranes probably exist in the inactivated state, and electrophysiological studies by Kass ...
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Chapter and Conference Paper
A numerical method for a class of nonlinear fourth order equations
This paper considers the behaviour and numerical method of the solutions of a class of nonlinear fourth order equations. Under some conditions on a(x), r(x,u) and the domain, the problem at least exists three ...
