long term operation of hydroelectric power systems

... a transmission network; hydrothermal power systems; optimal power flow Introduction Optimal power flow (OPF) is a complex problem for the operation of a power system due to its dependence on ... for optimizing the operation of hydrothermal power systems, taking into account all constraints belonging to the transmission power networks and considering the minimization of electricity and ... Optimal Power Flow Problem of the Hydrothermal Power Systems This paper develops an improved version of CCSA by carrying out modifications on two existing techniques of CCSA For the sake of simplicity,

Ngày tải lên: 13/11/2022, 20:14

... UTRAN, the aim of which was to study means to achieve further substantial leaps in terms of service provisioning and cost reduction The overall target of this long- term evolution (LTE) of 3G was to ... simulations of multi-cellular networks considering broadcast/multicast transmissions using the OFDM/OFDMA based LTE technology are presented to evaluate the capacity, in terms of number of TV channels ... Cellular layout Sectors Number of cell sites Antenna gain of the base station Width of beam of the antenna at −3 dB Front/Back ratio of the antenna Antenna pattern radiation of the base station Propagation

Ngày tải lên: 21/06/2014, 23:20

... clear-cutting in such eco- systems [41], we sought to elucidate the long- term response of plant species diversity of an ageing chestnut coppice. More- over, we tried to determine if a correlation ... peak of growth. To estimate the diversity of the plots before clear-cut, we used the mean diversity of the ten available years (1994–2003) of the 5 uncut plots. The Leaf Area Index (LAI) of the ... existing experiment of the Office National des Forêts designed for other objectives. That explains some of the unsatisfactory aspects of the design such as the unbalanced number of plots between the

Ngày tải lên: 08/08/2014, 00:22

... evaluate the effects of the different competition regimes created by each of these treatments on the perform- ance of spruce seedlings; (iii) To understand the long- term impacts of vegetation con- ... h = untreated control. Long- term effects of vegetation control treatments 689 Few replicated experiments are available to provide infor- mation on long- term implications of vegetation management ... province-wide scale of oper- ations, magnitude of investment, and constraints on choice of treatment, demand that vegetation management decisions should be driven by long- term vision and must

Ngày tải lên: 08/08/2014, 01:21

... University of Montreal Hospital Centre, Notre-Dame Hospital, Department of Medicine, University of Montreal, Montreal, Quebec, Canada of Montreal Hospital Centre, Notre-Dame Hospital, Department of Radiology, ... http://arthritis-research.com/content/8/1/R21 Research article Vol No Open Access Long term evaluation of disease progression through the quantitative magnetic resonance imaging of symptomatic knee osteoarthritis patients: correlation ... Radiology, University of Montreal, Montreal, Quebec, Canada 3University of Montreal Hospital Centre, Notre-Dame Hospital, Department of Physics and Biomedical Engineering, University of Montreal, Montreal,

Ngày tải lên: 09/08/2014, 07:20

... affected by rituximab (Table 2) Page of 12 (page number not for citation purposes) Long- term effects of rituximab treatment To evaluate long- term effects of rituximab, we divided the patients ... representative plot of short -term and treatment changes of the B cell expression of CD27 and IgD on B cells in bone marrow from patients with rheumatoid arthritis receiving rituximab long- term rheumatoid ... show that rituximab achieves a depletion of IgD+ B cells shortly after the treatment followed by a long- term accumulation of pre-germinal center subsets of B cells in PB Methotrexate/other 13/24**

Ngày tải lên: 09/08/2014, 14:22

... examined the short- and long- term effects of a quality improvement collaborative on patient outcomes, professional performance, and structural aspects of chronic care management of type 2 diabetes ... scores. Table 4 Process measures: professional performance Intermediate outcome indicators (percentage of patients) Baseline Short term (one year follow up) Long term (two years follow up) Intervention ... support multiprofessional teamwork, integration of primary and specialist care to improve care systems, professional performance (guideline adh er- ence), and patient outcomes. The aim of our s tudy

Ngày tải lên: 10/08/2014, 10:23

... al.: Long- term exposure of CdTe quantum dots on PC12 cellular activity and the determination of optimum nontoxic concentrations for biological use Journal of ... inten- sity (arbitrary units) of the dye emission is of the order of ~10 3 while the QDs display ~10 2 .Thus,anyenergy transferred to the dye would be of an order of magni- tude lower and would ... RESEA R C H Open Access Long- term exposure of CdTe quantum dots on PC12 cellular activity and the determination of optimum non-toxic concentrations for biological use

Ngày tải lên: 11/08/2014, 00:22

... This ena- bled us to conduct a detailed analysis of the impact of ICU stay on long- term PTSD symptomology. We found a high overall prevalence of long- term PTSD symptomology, as indicated by the PTSS-10 ... ventions and improve long- term patient care. Hence, it is worth evaluating PTSD in order to elucidate the complex nature of long- term outcomes in this setting [14]. Many survivors of critical illness ... Introduction The aim of this study was to determine the long- term prevalence of post-traumatic stress disorder (PTSD) symptomology in patients following secondary peritonitis and to determine whether

Ngày tải lên: 13/08/2014, 03:20

... with dysregulated motivational systems" [57] Addiction is conceptualized as a cycle of decreased function of brain reward systems and recruitment of antireward systems that progressively worsen, ... results in not only the short -term amelioration of the reward deficit but also suppression of the antireward system However, in the long term, there is worsening of the underlying neurochemical ... and Tropamine 60 379 TO CP At end of one year over 50 percent of the alcoholic DUI offenders not using SAAVE dropped out of the program while less than 15 percent of those using SAAVE dropped out

Ngày tải lên: 13/08/2014, 16:21

... Furthermore, long- term follow-ups of at least two years with parents of pre-school children are nonexistent The aims of the current investigation are to evaluate the long- term, two-year efficacy of the ... 0.35 for parenting and child behavior problems, respectively One of the few limitations of these studies is the lack of long- term controlled outcome investigations This may be primarily due to ... of prevention programs on the incidence of mental disorders is one of the most important research questions for mental health prevention Mental disorders account for 22% of the total burden of

Ngày tải lên: 13/08/2014, 18:21

... the off-diagonal terms of the matrix of coancestry coefficients between females are equal to the corresponding terms of the matrix of rotational coancestry... i.e., a yearly DF of ... probability of sire origins for female phases, the covariance between a female of phase i and her serving sire (sire i) is the sum of the products between the elements of row i of X and the elements of ... trace of a m atrix, i.e., the sum of its diagonal e lements. Then, when sires are related, the weight of relationship s ij between sire i and sire j (> i)ispro- portional to term j of row i of

Ngày tải lên: 14/08/2014, 13:22

... The Long- Term Benefits of Finance Transformation A report prepared by CFO Research Services in collaboration with Concur Releasing Resources to Support Growth The Long- Term Benefits of Finance ... if any, of the following systems does your company currently have in place? 0 10 20 30 40 50 60 70 80% Outsourcing of all or part of back-office finance activities Automated procurement systems ... Support Growth The Long- Term Benefits of Finance Transformation ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 120 ■ ■ ■ ■ ■ > Figure 4. Standardized, often centralized processess and systems underlie administrative

Ngày tải lên: 05/11/2014, 23:28

... pollution is of significance in determining the long- term performance of municipal solid waste management system. Previously, a large number of studies focused on the optimization of municipal ... value of 𝜕𝐶 . Therefore, the proposed model provides an effective solution for the long- term operational planning of the municipal solid waste management system. Figure 2. Comparison of the ... Number of defined time periods; Number of local waste collection centers; Number of regional waste distribution centers; Number of waste treatment plants; Number of disposal facilities; Number of

Ngày tải lên: 09/09/2015, 10:17

... overview of distributed power systems Section 1.5 presents details about the control and management of distributed power systems Section 1.6 proposes... power systems ... different types of. .. operation of modern distributed power systems The main objective of this dissertation is to design, develop and simulate intelligent Multi- Agent Systems (MAS) ... AND MANAGEMENT OF DISTRIBUTED POWER SYSTEMS THILLAINATHAN LOGENTHIRAN NATIONAL UNIVERSITY OF SINGAPORE 2012 MULTI-AGENT SYSTEM FOR CONTROL AND MANAGEMENT OF DISTRIBUTED POWER SYSTEMS THILLAINATHAN

Ngày tải lên: 09/09/2015, 17:53

... Review of Work 213 6.2 Summary of Findings 215 6.2.1 Long- term Behavior of FRP-Strengthened RC Beams under Sustained Loading 215 6.2.2 Effect of Cyclic Loading on Long- Term Behavior of FRP-Strengthened ... Behavior of FRP Laminate (Holmes and Just 1983) Fig 5.9 Effect of Weathering on Long- Term Serviceability Fig 5.10 Effect of GFRP Type on Long- Term Serviceability Fig 5.11 Effect of ... LONG- TERM BEHAVIOR OF FRP-STRENGTHENED RC BEAMS MITHUN KUMAR SAHA NATIONAL UNIVERSITY OF SINGAPORE 2006 LONG- TERM BEHAVIOR OF FRP-STRENGTHENED RC BEAMS MITHUN

Ngày tải lên: 14/09/2015, 18:17

... burden of sexually transmitted infections (STIs) HIV and AIDS 1.2 The interrelationship of STIs and AIDS 1.3 Determinants of transmission of STIs, HIV and AIDS 1.4 Sex workers as a source of transmission ... DEGREE OF DOCTOR OF MEDICINE DEPARTMENT OF COMMUNITY, OCCUPATIONAL AND FAMILY MEDICINE NATIONAL UNIVERSITY OF SINGAPORE 2003 i ACKNOWLEDGEMENTS I am most grateful to my supervisors, Professor ... Description of the intervention Measurement of program effects Statistical analysis Results 4.1 81 Effects of condom promotion program for vaginal sex 81 4.1.1 Outcome evaluation 81 4.1.1.1 Long- term

Ngày tải lên: 17/09/2015, 17:20

... dilution of their voting power In order to empirically address the issue of the possible post-unification “recovery” of the optimal level of control rights, we use data for a relatively long post-unification ... voting power before the unification Figure and Table present the evolution of the voting power of controlling shareholders in the main sample of unifying firms, and in the control sample of firms ... more voting power than their counterparts in non-unifying firms, and ended up (in year +7) with less voting power (see also Figure 2) The long- term relative decrease in the voting power of controlling...

Ngày tải lên: 07/03/2014, 01:20

... Department of Surgery, North Colombo Teaching Hospital, Ragama, Sri Lanka 4The Department of Biostatistics, Postgraduate Institute of Agriculture, University of Peradeniya, Sri Lanka 5Department of Surgery ... survival in the first twenty months after operation and predictable survival in the medium and long- term: Analysis of survival and prognostic markers World Journal of Surgical Oncology 2010 8:82 Submit ... second year Fourteen (87.5%) of sixteen had died due Chan et al World Journal of Surgical Oncology 2010, 8:82 http://www.wjso.com/content/8/1/82 Page of 11 Table Comparison of clinical and pathological...

Ngày tải lên: 09/08/2014, 03:22

... the control of the CAG promoter, followed by several cloning sites including a SwaI site, polyadenylation signal sequence of the Pgk gene, and a portion of the multiple cloning site of pMCS5 XhoI–EcoRI-digested ... pSA-bgeo; Dr Izumo Saito (Institute of Medical Science, University of Tokyo, Japan) for providing pCAG-Cre; Dr Ikuo Yana (Institute of Medical Science, University of Tokyo, Japan) for help in performing ... that are required for immunological isolation of ECs [23,24] to prevent proliferation of tsA58T Ag-expressing non-ECs Results and Discussion Generation of a transgenic mouse line carrying the CAG-bgeo-tsA58T...

Ngày tải lên: 18/02/2014, 17:20