In project-oriented production systems where hundreds of thousands of operations are carried out each month subject to precedence and resource constraints, long-term scheduling is a challenging problem for any branch of operation research or artificial intelligence. In a dynamically changing environment, fixing a schedule for several months in advance would be pointless, and, furthermore, the s...

Repeating the work of Meertens [1] we show how to define in a few lines a very general “aggregation” function. It is parameterized by a binary operation ⊕ : t × t → t that performs the elementary aggregation steps on values of type t . The aggregation function, then, aggregates all t constituents of a composite ...t ... value into a single t value; its type is: ...t ... → t . The generality is ...

Platelet aggregation inhibitory effect and anticoagulant properties of fractions separated from the venoms of Cerastes persicus fieldi and Echis carinatus were investigated. The partial fractionation was performed on a Sephadex G-100 column. Two fractions separated from Cerastes persicus fieldi showed anti platelet aggregation activity on ADP (200 µM)-induced platelet aggregation (ca 80% inhibi...

background: protein aggregation is one of the important, common and troubling problems in biotechnology, pharmaceutical industries and amyloid-related disorders. methods: in the present study, the inhibitory effects of some carbohydrates (alginate, β-cyclodextrin and trehalose) on the formation of nano-globular aggregates from normal (hsa) and glycated (ghsa) human serum albumin were studied; w...

Protein aggregation and precipitation is associated with many debilitating diseases including Alzheimer's, Parkinson's, and light-chain amyloidosis. β-Casein, a member of the casein family, has been demonstrated to exhibit chaperone-like activity to protect protein form aggregation. Hofmeister salts (lyotropice series) are a class of ions which have an effect on the solubility and also the stab...

Aggregation operators (AOs) have been studied by many schol- ars. As many AOs are proposed, there is still lacking approach to classify the categories of AO, and to select the appropriate AO within the AO candidates. In this research, each AO can be regarded as a cognitive style or individual dierence. A Cognitive Style and Aggregation Operator (CSAO) model is pro- posed to analyze the mapping ...

Epidemiologic studies show that the cardiovascular diseases are associated with multiple factors such as raised serum total cholesterol, increased LDL, increased platelet aggregation, hypertension and smoking. In-vitro studies have confirmed the ability of some plants of Allium species to reduce these parameters. Therefore, we evaluated anti-platelet aggregation effect of some Allium species (A...

In this paper, we describe how we developed a simple design and fabrication method for logic gates and a device by using a commercially available tripeptide, namely glutathione (GSH), together with metal ions and disodium ethylenediaminetetraacetate (EDTA) to control the dispersion and aggregation of gold nanoparticles (NPs). With the fast adsorption of GSH on gold NPs and the strong coordinati...

OF THE DISSERTATION Aggregation Computation over Complex Objects by Donghui Zhang Doctor of Philosophy, Graduate Program in Computer Science University of California, Riverside, August, 2002 Dr. Vassilis J. Tsotras, Chairperson The aggregation query is an important but costly operation in database management systems. While the aggregation in relational databases has been well studied, recently ...

Wireless sensor network (WSN) is a collection of smart sensor nodes cooperated together for achieving the desire of the assigned application. However, these nodes suffer from different limitations, including limited energy sources and limited processing capabilities. Clustering and data aggregation are considered main solutions for prolonging the network lifetime. Clustering is either based on ...