... that this Hamiltonian appears similar to graphene [13], but topological insulators have an odd num- ber of massless Dirac cones on the surface, ensured by the Z 2 topological invariant of the bulk, ... and the barrier width. In addition, changing the length of the barrier and/or the magnetic field can tune the total reflection and the perfect transmission regions....
Ngày tải lên: 20/06/2014, 20:20
... tacit knowledge and information: that is, an interaction between actions and behaviors. The action of creation does not consist of the processing of infor- mation or data, since the obtaining of tacit knowl- edge, ... characteristics make clear that the inno- vation process in a firm will be a very wide-ranging one, involving the obtaining of knowledge from the exis...
Ngày tải lên: 24/01/2014, 00:20
Báo cáo hóa học: " Research Article Impact of LQI-Based Routing Metrics on the Performance of a One-to-One Routing Protocol for IEEE 802.15.4 Multihop Networks" docx
... categorized into one of four classes. Then, it was converted into a link cost by transforming the average PDR of the corresponding category to the log scale, and then normalizing to the integer domain. The ... numbers in the interval between 1 and 7, in which an ideal link has a link cost value equal to 1. A drawback of this second option is that, though the...
Ngày tải lên: 21/06/2014, 11:20
EFFECT OF CARBON TO NITROGEN RATIO ON THE COMPOSTING OF CASSAVA PULP WITH SWINE MANURE
... percent of the cassava produced in Thailand is converted into starch. Domestic demand for cassava starch is as high as 1.3-1.7 million tons per year (Thai Tapioca starch Association, 2005). The cassava ... ND ‡ Mean ± standard deviation.ND-not determined as the piles had already reached maturity. Main characteristics of final composts in all piles are shown in Table 4....
Ngày tải lên: 05/09/2013, 09:08
Experimental study on the performance of a prism-shaped integrated collector-storage solar water heater
... that, after gaining heat from the solar radiation, the tank wall heats a thin vertical layer of water along the tank wall. Part of this heat is then transferred by diffusion towards the core of the ... collector storage solar water heater in the shape of a right angle prism-shaped tank covered with glass during several months of the year. The heat gain and...
Ngày tải lên: 05/09/2013, 15:28
A STUDY ON THE USE OF PEER TEACHING IN ESP CLASSES AT THE COLLEGE OF SCIENCE, VIETNAM NATIONAL UNIVERSITY HANOI
... research’s aim is to examine the impact of ‘Peer-teaching’ on ESP teaching and learning quality, the collected data of the study was analyzed both quantitatively and qualitatively according to ... we are examining is what staff should take into account when considering the adoption of formal peer teaching approaches. These include the dynamics present in any interp...
Ngày tải lên: 29/01/2014, 10:49
Tài liệu On the Importance of Prior Relationships in Bank Loans to Retail Customers docx
... variable is constructed using the number of all branches of each savings bank and the number of inhabitants of the particular region the bank is operating in. The underlying intuition is that ... sources of value of prior relationships lie. We are able to access data that has information not only on loan performance, but also on the determinants for the loa...
Ngày tải lên: 16/02/2014, 06:20
Tài liệu Báo cáo khoa học: Crystal structure of Klebsiella sp. ASR1 phytase suggests substrate binding to a preformed active site that meets the requirements of a plant rhizosphere enzyme doc
... The k cat ⁄ K m values increase from G1P over PhyK to AppA by a factor of 2200. The confor- mational changes of AppA upon substrate binding facilitate a faster turnover of phytate and are in ... consist of two domains, a large a ⁄ b domain and a small a domain with the catalytic site at the interface of the two domains [4,5]. HAPs can initi- ate hydrolysi...
Ngày tải lên: 16/02/2014, 09:20