Cerinţele pietei şi presiunile din cadrul social necesită sisteme de fabricaţie eficiente care să ţină pasul cu tendinţele mereu crescânde din domeniu. De aici rezultă necesitatea dezvoltării unor sisteme noi de control al fabricaţiei care să poată face faţă schimbărilor şi perturbaţiilor din producţie într-un mod eficient. În acest sens, în ultimul deceniu au fost făcute numeroase cercetări şi...

The paper presents the results of the qualitative and quantitative determination of scopoletin (SLT) in Physalis alkekengi and Solanum dulcamara (Solanaceae) by highperformance liquid chromatography tandem mass spectrometry (HPLC/MS). The plant samples were harvested around Iasi on July 2007, July 2008, August-September 2009. Scopoletin was extracted from dried leaves by two methods: with metha...

Lactonic sophorolipids were produced by the yeast Candida Bombicola ATTC 22214 (Torulopsis bombicola) in a 3L bioreactor using batch cultivation, with corn oil and glucose as carbon sources. The main compound of the lactonic mixture was separated from the mixture by column chromotography and was identified as 17 hydroxyoctadecanoic-1’,4’’-lactone 6’ 6’’ diacetate sophorolipid. Surface tension m...

În acest articol prezentăm câteva metode şi tehnici noi, foarte practice, pentru calculul unor valori agregate în structuri şi baze de date multidimensionale. De asemenea, considerăm şi problema determinării eficiente a celei de-a k-a valori minime din mulţimi definite prin diverse constrângeri. A treia contribuţie a articolului este reprezentată de câteva extensii şi aplicaţii ale unor problem...

The water quality in Biscayne Bay has been significantly affected by past and continuing coastal and watershed development. The nutrient concentrations in the Bay have been dramatically changed by the conversion of natural creeks and sheet flow freshwater inputs to rapid and episodic canal inputs from the large and rapidly expanding Miami metropolitan area. This study is an evaluation of nutrie...

Due to the sink node crucial position, its location privacy is becoming one of the major issues in wireless sensor networks (WSNs) which requires ultimate protection. Particularly, the WSNs successfulness is endanger as the wireless transmission nodes are susceptive to illicit tracing and detection. While privacy of the message can be ensured through encryption content, this paper formalizes a ...

The preceding DIN 6800-2 (1997) protocol has been revised by a German task group and its latest version was published in March 2008 as the national standard dosimetry protocol DIN 6800-2 (2008 March). Since then, in Germany the determination of absorbed dose to water for high-energy photon and electron beams has to be performed according to this new German dosimetry protocol. The IAEA Code of P...

We studied dogs with unilateral papain-induced emphysema to answer two questions: (1) Do emphysema lung-apposed hemidiaphragm (DiE) and normal lung-apposed hemidiaphragm (DiN) have equal capacities for lowering lung surface pressure? and (2) Are side-to-side differences in intrathoracic pressure the result of unequal force outputs by DiE and DiN or are they caused by differences in their mechan...