نتایج جستجو برای: the firm tie
تعداد نتایج: 16058790 فیلتر نتایج به سال:
Abstract In this paper, a fuzzy PID with new structure is proposed to solve the load frequency control in interconnected power systems. in this study, a new structure and effective of the fuzzy PID-type Load frequency control (LFC) is proposed to solve the load frequency control in interconnected power systems. The main objective is to eliminate the deviations in the frequency of different area...
Introduction: Echocardiography is usually the first modalities of imaging to evaluate the structural and functional disorders of the heart and great vessels, and colored flow and Doppler images are able to perform hemodynamic and bloodstream evaluations. The goal of this study was the investigation of right ventricular function using echocardiography in patients with pulmonary artery hypertensi...
OCCASIONALLY, surgeons find themselves in a dilemma in which one of their hands is required to maintain exposure while, at the same time, the surgeon is the only one in position to tie a suture or ligature. The technique described herein can then be used. I a tie steady. With the free hand, the surgeon can place knots against the assistant's fixed end of the string (Fig. la). To facilitate the ...
The odds for success of a future CAI system (as well as the present CAI movement) are completely dependent on the quality of an underlying theory of innovation and the effectiveness of its tools, processes and models. This paper establishes a set of requirements for such a theory, evaluates existing approaches, methodologies and theories (including TRIZ), and presents an overview of the General...
The Interrelationships between Information Technology Expenditures, CEO Compensation and Firm Value*
CEOs and their management teams decide how much a firm will spend on IT. Though managers make IT spending decisions with the intent of generating value, such benefits are risky and not guaranteed (Dewan et al. 2007). While CEOs may perceive that IT spending could translate into competitive advantage and increase productivity, they also realize that IT expense will reduce current net income and ...
Ample evidence supports that prostate tumor metastasis originates from a rare population of cancer cells, known as cancer stem cells (CSCs). Unfortunately, little is known about the identity of these cells, making it difficult to target the metastatic prostate tumor. Here, for the first time, we report the identification of a rare population of prostate cancer cells that express the Tie-2 prote...
Growth factor receptors in human hematopoietic progenitor cells have become the focus of intense interest, because they may provide tools for the monitoring, enrichment, and expansion of stem cells. We have shown earlier that the Tie receptor tyrosine kinase is expressed in erythroid and megakaryoblastic human leukemia cell lines, in the blood islands of the yolk sac, and in endothelial cells s...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید