define the concept of energy flow in an ecosystem

... deciduous forest in which oaks (Quercus robur and Quercus petraea) and beech (Fagus sylvatica)arethemain species [30]. Since the plantation work of the Austrian admin- istration at the end of the 18th ... strong in the initial phase, i.e. in the first year following the treatment [20]. The organic C and total N supply can decrease because of plant uptake, leaching processes or gaseous escape [6]. In ... growth. There- fore, quantifying the effects of tillage systems on soil moisture, temperature, and compaction can help explain some of the dif- ferences in plant growth and development in different...

Ngày tải lên: 07/08/2014, 16:20

Ngày tải lên: 14/08/2014, 07:21

... the per- formance of the axial compressor with inlet distortion, which is meaningful to engi- neering application in the design and analysis of turbomachinery. In this chapter, by applying the ... to an inlet flow distortion. 1.1 Introduction In the operation of aircraft jet-engine, it is important to understand the aerody- namic response resulting from an inlet flow distortion. An inlet ... distortion line and corresponding distortion propagation fac- tor are proposed to express the effect of the two main inlet parameters: the angle of flow and the distorted inlet velocity, on the propagation...

Ngày tải lên: 21/06/2014, 21:20

... line is pro- posed to describe the effect of two main inlet parameters: the angle of flow and the distorted inlet velocity, on the propagation of distortion. Further more, corresponding to the ... flux of mass, or even a back flow may be caused by the smaller inlet distorted velocity or larger flow angle. Excepting the ratio of drag-to-lift coefficients of the blade and the angle of flow ... distortion line. In other words, the size of distortion region has no influence on the critical distortion line. Therefore, the pro- posed critical distortion line includes the principal effects at inlet....

Ngày tải lên: 21/06/2014, 21:20

Ngày tải lên: 18/12/2013, 10:08

... assessment. Institute of Energy RURAL RENEWABLE ENERGY WEEK IN HANOI EXPERIENCE OF THE INSTITUTE OF ENERGY IN THE PREPARATION OF THE RENEWABLE MASTER PLAN Presented by: Nguyen Duc Cuong Institute of Energy Hanoi, ... MW Geothermal energy and other types (tide, ocean waves ) ¾ Potential of geothermal energy resources: 200- 340 MW. ¾ The renewable energy type such as tide and sea waves are in the stage of potential ... of energy to meet rapidly increasing energy demand as well as environmental protection. 9 Main RE resources in VN are small hydro power, biomass energy, wind energy, solar energy, and geothermal...

Ngày tải lên: 24/01/2014, 03:20

... not the 2 The aim of this study is to investigate (i) whether and how much the Indian public values any efforts to reduce pollution levels in the Ganga via reduction of the amount of untreated ... though the ρ 2 increases from 0.219 in CLM to 0.343 in RPLM. The estimated standard deviations of the RPLM are insignificant for the quantity of treated wastewater and regeneration of the park ... by a random component i . By specifying the distribution of the error terms e and , the probability of choosing j in each of the choice sets can be derived (Train, 1998). By accounting for...

Ngày tải lên: 18/02/2014, 01:20

... im µνα k α  . (4) In the expression (3 ), we have used Feynman integration parameter [5]. Neglecting the integrals that contain the odd terms of p in P (m) which will vanish under the symmetric integration in ... Journal of Science, Mathematics - Physics 23 (2007) 22-27 Eliminating on the divergences of the photon self - energy diagram in (2+1) dimensional quantum electrodynamics Nguyen Suan Han 1 , Nguyen ... obtained by two different methods are coincided if the gauge invariant of theory is considered carefully step by step in these calculations. 1. Introduction It is well known that the gauge theories...

Ngày tải lên: 28/03/2014, 13:20

... Cliff and Northrop propose in DR4 that the Flash Crash event in the US nancial markets on 6 May 2010 is, in fact, an instance of what is known as ‘normalisation of deviance’ and they explain that ... revolution (involving software robot traders) occurs in the global nancial markets. The decline in the number of front line traders employed by major nancial institutions in the past few ... designed mechanisms to manage the risk of volatility are one means of reducing the effects of risk in today’s and future markets. 23 The UK does already have signicant investment in relevant PhD-level...

Ngày tải lên: 29/03/2014, 18:20

... 2012b – forthcoming). Figure 4. Main Institutional Investors’ Financing Vehicles for Infrastructure Investment Direct investment for filling clean energy financing gap Financing Vehicles Equity ... schemes in Holland for beneficiaries in the education, government and construction sectors, cleaning and window-cleaning companies, housing corporations and energy and utility companies. APG invests ... promotes the Principles for Responsible Investing (UN PRI). The four principles include integrating ESG 23 Box 3. Examples of Insurance Companies’ Investments in Clean Energy Projects Allianz:...

Ngày tải lên: 30/03/2014, 12:20

... [pULCTab] containing the penDE gene of A. nidulans without and with induction (note the formation of the 40-kDa protein and the lack of processing to the 29-kDa and 11-kDa subunits) in lane 4; lane 5, ... completely processed to the 29-kDa (a) and 11-kDa (b) subunit at 48 h and remained processed thereafter; the intensity of the bands increased at 72 and 96 h, in agreement with the enzyme being involved in secondary ... itself in A. nidulans also. To establish if the lack of processing and dissociation of the A. nidulans IAT was due to intrinsic characteristics of the protein itself or to the absence of a processing endopeptidase...

Ngày tải lên: 31/03/2014, 01:20

... is occurring). They can see and hear the attitude of the persons involved (the interlocutors). They can hear the linguistic registers and the appropriateness of the language within the situation” Sharing ... transaction in its totality. The learners can see the people and the situation (the setting where the interaction is occurring). They can see and hear the attitude of the persons involved (the interlocutors). ... ensuring 100% of schools that join the project have language labs and audio-visual rooms;  Constructing and implementing the training plans on operation and maintenance of teaching and learning...

Ngày tải lên: 03/04/2014, 19:32

... time and test the interaction between the two, as well [33]. As to the assessment of the quality of analgesic care, the adequacy of pain management will be assessed firstly using the IPM, an index ... clinical variables, pattern of care and main outcomes, and a discussion of the feasi- bility of this kind of approaches in the specific setting, the second about the effects (effectiveness) of ... purposes) Background Pain afflicts most cancer patients, mainly in the advanced and metastatic phase of the disease [1]. Recent reviews of published literature suggest that the prevalence of pain in advanced cancer...

Ngày tải lên: 20/06/2014, 15:20

... broader and larger peaks near flat-band vol- tage than those of sample A5, indicat ing higher energy loss during charge exchange. In the investigation of this study, an implantatio n energy of 5 ... full-width-at-half-maximum (FWHM) of the conductance peak is small and almost constant in the freque ncy range of 10-500 kHz, indi cating that the hys- teresis and conductance peak are of the same origin [28]. It ... result of ion implantation and annealing. There is no significant increase of the HfO 2 thickness while the interfacial SiO 2 (IL) layer increases from 1.2 to 1.9 nm as a result of implantation and...

Ngày tải lên: 21/06/2014, 05:20

... MEASUREMENT IN THE MARKETING RESEARCH H CHÍ MINH CITY UNIVERSITY OF INDUSTRYỒ FACULTY OF BUSINESS ADMINISTRATION MARKETING RESEARCH 5 2. The benefit of the measurement 1. Defining accuracy and quantity ... between things and phenomenons; is a special kind of the ordinal scale; In measuring attitudes or opinions, the interval scale provides more information than ordinal scale. The Interval scale shows ... and “no” in the time (the fact is "Yes" in this conditions and "no" in the other conditions). They can avoid to show their opinion like dualistic kind. or sensitive than...

Ngày tải lên: 09/07/2014, 17:20

... the source-sink model simulates the size (growth rate) of the different organs, and allows the definition of an endoge- nous environment. But in these source -sink models, the definition of the ... related to the so called “complexe corrélatif”, which Champagnat et al. [3] defined as the result of the multiple and changing influences of the organ network within the plant. A part of this environment ... show the existence and various aspects of an “endogenous environment” of the organs, which may vary in space and time according to the structure and function of the global plant. Heterogeneity in...

Ngày tải lên: 08/08/2014, 14:22

... be released to anything less than some other intramural facility locks a sizable amount of the resources of a psychiatric acute ward. The method used minimized the chance of financially biased ... observation and cost effectiveness analy- sis may be combined. Conflict of interest Both authors were salaried workers in the facility at the time of the study. No financial or other conflicts of inter- est ... teorien om optimale offentlige investeringer (Waiting time as a rationing mechanism, a theory of allocation of resources, and some points on the theory of optimal public investments) Oslo: Universitetsforlaget;...

Ngày tải lên: 08/08/2014, 21:20

Ngày tải lên: 08/08/2014, 21:20

Ngày tải lên: 09/08/2014, 10:21