Sign inSubmit
Tips: “quotes” for a phrase · author:Lee · a DOI goes straight to its article

179 results for “lead time”
Set a search alert
Research ArticleOpen accessIn the abstractOn Calculating Activity Slack in Stochastic Project NetworksGary MitchellProblem statement: Identifying critical tasks in a project network is easily done when task times are deterministic, but doing so under stochastic task times is problematic. The few methods that have been proposed contain serious drawbacks which lead to identifying critical tasks incorrectly, leaving project managers without the means to (1) identify and rank the most probable sources of project … …American Journal of Economics and Business Administration, Vol. 2, Issue 1 · 31 Mar 2010 · 8,233 accessesView PDFCite
Research ArticleOpen accessIn the abstractSimulation of Airflow and Aerodynamic Forces Acting on a Rotating Turbine VentilatorA.S. Farahani, N.M. Adam, M.K.A. AriffinProblem statement: Rotating turbine ventilators were generally found in most countries. They were simple in structure, light in weight and cheap to install. It was quite surprising that, the aerodynamics of this common device had not been numerically examined and the design process of most of these ventilators had developed progressively through trial and error methods. Approach: This study was … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 1 · 31 Mar 2010 · 8,719 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Novel Algorithmic Cost Estimation Model Based on Soft Computing TechniqueIman Attarzadeh, Siew Hock OwProblem statement: Software development effort estimation is the process of predicting the most realistic use of effort required for developing software based on some parameters. It has always characterized one of the biggest challenges in Computer Science for the last decades. Because time and cost estimate at the early stages of the software development are the most difficult to obtain … …Journal of Computer Science, Vol. 6, Issue 2 · 28 Feb 2010 · 7,936 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Use of Insects as Human Food in ZambiaA.E. GhalyProblem statement: The life cycle and culture structure of two commonly eaten worms in Zambia (Isoberlinia paniculata and Miombo/Mopani) were evaluated. The worms were grown on an artificial medium to evaluate the potential of producing them on a commercial scale. Approach: An interesting characteristic of the worms studied was that they reached their maximum weight and maximum length at the … …OnLine Journal of Biological Sciences, Vol. 9, Issue 4 · 31 Dec 2009 · 8,707 accessesView PDFCite
Research ArticleOpen accessIn the abstractChemical Composition of Propolis from Different Regions in Java and their Cytotoxic ActivitySyamsudin, Sudjaswadi Wiryowidagdo, Partomuan Simanjuntak, Wan Lelly HeffenProblem statement: Propolis samples from tropical zones, such as Java (Indonesia) with its vast biodiversity, have become a subject of increasing scientific and economic attention. The association of the chemical composition of propolis from different geographic regions with cytotoxic activities lead to the identification of active principles, a fundamental tool to achieve standardization of this bee product. Approach: The purpose … …American Journal of Biochemistry and Biotechnology, Vol. 5, Issue 4 · 31 Dec 2009 · 8,273 accessesView PDFCite
Research ArticleOpen accessIn the abstractMulti Microkernel Operating Systems for Multi-Core ProcessorsRami MatarnehProblem statement: In the midst of the huge development in processors industry as a response to the increasing demand for high-speed processors manufacturers were able to achieve the goal of producing the required processors, but this industry disappointed hopes, because it faced problems not amenable to solution, such as complexity, hard management and large consumption of energy. These problems forced … …Journal of Computer Science, Vol. 5, Issue 7 · 31 Jul 2009 · 7,550 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Physiological Effects on Hormones levels and Kidneys Functions Induced by The Anabolic Androgenic Drug (Sustanon) in Male Guinea PigsAmeen Saleh Ahmed Bin BisherProblem statement: In recent years, the intentional abuse of anabolic androgenic drugs by athletes has increased rapidly in many countries to become a serious negative phenomenon. Athletes, specially in power sports, abuse these drugs such as Sustanon in high doses to obtain a rapid and huge increasing in the muscles mass and to improve their performance during the sport competitions. … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 7,028 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Tumor/Immune Interface: Clinical Evidence of Cancer Immunosurveillance, Immunoediting and ImmunosubversionMatthew S. Block, Svetomir N. MarkovicProblem statement: The interactions of a malignant tumor with the patient’s immune system are dynamic, multiple and bi-directional. Approach: This article reviews the clinical evidence of the interaction of cancer with immunity with emphasis on recent developments highlighting some of the mechanisms of tumor-mediated regulation of immunity. Results: Most of the time, the immune response to a malignancy acts to … …American Journal of Immunology, Vol. 5, Issue 1 · 31 Mar 2009 · 10,100 accessesView PDFCite
Research ArticleOpen accessIn the abstractClinical Evidence of Autologous Graft versus Tumor EffectLuis F. PorrataProblem statement: The infused alloreactive lymphocytes in allogeneic stem cell transplantation (Allo-SCT) lead to an unspecific immune response causing Graft-Versus-Tumor (GVT) effect and Graft-Versus-Host Disease (GVHD). The current dogma regarding the anti-tumor effect of GVT is only observed in the Allo-SCT and not in the autologous hematopoietic stem cell transplantation (AHSCT). Approach: This article reviewed the medical literature to show … …American Journal of Immunology, Vol. 5, Issue 1 · 31 Jan 2009 · 7,511 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance Comparison of Two On-demand Routing Protocols for Ad-hoc Networks based on Random Way Point Mobility ModelGeetha Jayakumar, G. GopinathAd hoc networks are characterized by multihop wireless connectivity, frequently changing network topology and the need for efficient dynamic routing protocols plays an important role. We compare the performance of two prominent on-demand routing protocols for mobile ad hoc networks: Dynamic Source Routing (DSR), Ad Hoc On-demand distance Vector Routing (AODV). A detailed simulation model with MAC and physical layer … …American Journal of Applied Sciences, Vol. 5, Issue 6 · 30 Jun 2008 · 7,693 accessesView PDFCite