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Now showing items 81-90 of 140
Anomalous manganese activation of a pyrophosphate cathode in sodium ion batteries: A combined experimental and theoretical study
(2013 , Article)
Sodium ion batteries (SIBs) have many advantages such as the low price and abundance of sodium raw materials that are suitable for large-scale energy storage applications. Herein, we report an Mn-based pyrophosphate, ...
Thin, flexible supercapacitors made from carbon nanofiber electrodes decorated at room temperature with manganese oxide nanosheets
(
Hindawi Publishing Corporation
, 2013 , Article)
We report the fabrication and electrochemical performance of a flexible thin film supercapacitor with a novel nanostructured composite electrode. The electrode was prepared by in situ coprecipitation of two-dimensional ...
Nitrate removal from water using UV-M/S2O42- advanced reduction process
(
Springer
, 2013 , Article)
In this work, a new process called advanced reduction process (ARP) was used for nitrate removal from water. This ARP process combines sodium dithionite as reducing agent with ultraviolet irradiation using medium pressure ...
Exchange rate pass-through and inflation dynamics in Tunisia: A Markov-switching approach
(
Kiel Institute for the World Economy
, 2013 , Article)
This paper studies the effect of exchange rate pass-through on inflation in Tunisia for the period 2001 to 2009. The objective is to track inflation regimes for the Tunisian economy and to forecast its determinants. Using ...
Spatial and Temporal Distribution of Heavy Metals in Marine Sediment Along the Doha Bay
(2013 , Master Thesis)
Concentrations of twenty five heavy metals (Ag, Al, As, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, Pb, Sb, Se, Sr, V, Zn, and Hg) in surface sediment from ten transects each with five stations were studied. ...
Seasonal Changes in Biodiversity and Abundance of Invertebrates in Different Ecological Environments
(2013 , Master Thesis)
Biodiversity is a natural quality that must be measured to be understood. It is the measurement of the quantity and diversity of the biota in an area. Each area of the world has its own unique biodiversity as defined by ...
Towards model-based management of database fragmentation
(
USENIX Association
, 2013 , Conference Paper)
The performance of a database can significantly deteriorate due to the fragmentation of data/index files. Manual database defragmentation and performance optimization remain time consuming and even infeasible as it requires ...
البنية السردية في ثلاثية "أطياف الأزقة المهجورة العدامة – الشميسي – الكراديب" للروائي تركي الحمد
(2013 , Master Thesis)
تهدف الدراسة إلى البحث عن مكونات البنية السردية، في ثلاثية "أطياف الأزقة المهجورة"
)العدامة، الشميس ي، الكراديب( " للروائي السعودي تركي الحمد، وقد وقع اختيا ري على هذه
الثلاثية؛ لأنها من الروايات التي أحدثت منعطفا في ...
النسوية في شعر المرأة القطرية
(2013 , Master Thesis)
تدرس الرسالة إشكالية هامة نعرضها عن طريق السؤال التالي:
هل عرفت الشاعرة القطرية "النسوية" بوصفها نظرية أدبية من منطلق التمرد والمطالبة بالحقوق لرفض الواقع الاستلابي الذكوري والى أي مدى تمثلت هذه الشاعرة أفكار "النسوية" ...
جماليات المكان في شعر تميم البرغوثي
(2013 , Master Thesis)
ازدادت العناية في السنوات لأخيرة بدراسة البنى المكانية في الأدب بوجه عام والشعر
بوجه خاص، وبدا ذلك واضحا عبر معالجات الباحثين والنقاد بفضل تطور النقد الحديث وتعدد مناهجه ونضج رؤاه أولا ، ولما تشكله تلك البنى من أهمية بالغة ...