the effect of vanillin on the corrosion behavior of aa6061 al alloy in 3.5% nacl solution wasinvestigated using potentiodynamic polarization and electrochemical noise (en) techniques. vanillinoffers interesting possibilities for corrosion inhibition due to its nontoxicity and high solubility inaqueous media. the best inhibition effect at 200 ppm vanillin was a marked characteristic of theinhibi...

We propose a novel mode of operation for Amplify-and-Forward relays in which the spectra of the relay input and output signals partially overlap. This partial-duplex relaying mode encompasses half-duplex and full-duplex as particular cases. By viewing the partial-duplex relay as a bandwidthpreserving Linear Periodic Time-Varying system, an analysis of the spectral efficiency in the presence of ...

This paper develops a general approach for the single period portfolio optimization problem in a multidimensional general and partial moment space. A shortage function is defined that looks for possible increases in odd moments and decreases in even moments. A main result is that this shortage function ensures sufficient conditions for global optimality. It also forms a natural basis for develo...

Effects of partial hepatectomy on protein synthesis were defined in liver and extra-hepatic tissues of the mature rat. Studies were performed at 24 h and 48 h after surgery in the absence of the dietary input. Protein accretion in the regenerating liver preceded mitosis, but was accompanied by increases in RNA content and fractional rates of protein synthesis (ks). A positive relationship exist...

the photosynthetic capacity of Siberian white birch and Japanese white birch (Betula platyphylla Sukatch. and B. platyphylla Sukatch. var. japonica Hara) were measured. Birch seedlings were raised with a CO2 partial pressure of 36 ± 0.3 Pa (i.e., ambient) or 70 ± 0.6 Pa at day/night temperatures of either 30/16 °C or 26/12 °C. Siberian birch leaves were smaller and thicker than Japanese birch l...

Online analytical processing (OLAP) is a widely used technology for facilitating decision support applications. In the paper, we consider partial aggregation queries, especially for partial top-k/bottom-k, which retrieve the top/bottom-k records among the specified cells of the given query. For the efficient processing of partial ranking queries, this paper proposes a set of algorithms using th...

Online analytical processing (OLAP) is a widely used technology for facilitating decision support applications. In the paper we consider partial aggregation queries, especially for partial top-k/bottom-k, which retrieve top/bottom k records among the specified cells of the given query. For efficient processing of partial ranking queries, this paper proposes a set of algorithms using the RD-Tree...

– In this paper we present our study on the effects on energy efficiency of a mobile system by enhancing our energy-efficient TCP variant (E 2 TCP) with partial reliability. Partial reliability is beneficial for multimedia applications and is especially attractive in wireless communication environments. It allows applications to trade a controlled amount of data loss for a higher throughput, lo...

In this letter, we propose a distributed switch-and-stay combining network with partial relay selection and show that the system spectral efficiency can be improved via adaptive modulation. Analytical expressions for the achievable spectral efficiency and average bit error rate of the proposed system over Rayleigh fading channels are derived for an arbitrary switching threshold. Numerical resul...