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Psychometric evaluation of the Chinese (mainland) version of Job Content Questionnaire: a study in university hospitals.
To evaluate the psychometric properties of the Chinese (mainland) version of Job Content Questionnaire (JCQ), this validation study was conducted in university hospitals among 193 men and 581 womenExpand
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The infinite sum of the cubes of reciprocal Pell numbers
Given the sequence of Pell numbers {Pn}, we evaluate the integral part of the reciprocal of the sum ∑k=n∞1Pn3 explicitly in terms of the Pell numbers themselves.MSC: 11B39.
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On the Dirichlet characters of polynomials in several variables
x=N+1 χ(f(x)) ≪ p log p, where A ≪ B denotes |A| < kB for some constant k which in this case depends on the degree of f . The estimate (1) is the best possible. In fact, the first author [8] provedExpand
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MEAN VALUE OF THE CHARACTER SUMS OVER INTERVAL
  • Z. Xu
  • Mathematics
  • 2 January 2009
Let $q>8$ be an odd integer and $p$ a prime with $p$ a prime with $p<q$ and $p\nmid q$. The main purpose of this paper is to study the mean value properties of the character sums over intervalExpand
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On the mean value of the two-term exponential sums with Dirichlet characters
The main purpose of this paper is using the analytic method to study the mean value properties of the two-term exponential sums with Dirichlet characters, and give an explicit formula for its fourthExpand
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On a problem of D.H. Lehmer over short intervals
Abstract Let p be an odd prime and a be an integer coprime to p. Denote by N ( a , p ) the number of pairs of integers b , c with b c ≡ a ( mod p ) , 1 ⩽ b , c ⩽ ( p − 1 ) 2 and with b , c havingExpand
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Nickel Formation on Graphite Sheet Surface for Improving Wettability with Magnesium Alloy
Magnesium-calcium alloy-based composites reinforced with vapor grown carbon fibers (VGCFs) are supposed to possess satisfactory high-temperature applications. However, poor wettability of magnesiumExpand
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Properties of ternary NiFeW alloy coating by jet electrodeposition
In this paper, ternary NiFeW alloy coatings were prepared by jet electrodeposition, and the effects of lord salt concentration, jet speed, current density and temperature on the properties of theExpand
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