pressure drop of irrigated random and structured packings
An experimental study of pressure drop characteristics in vertical upward two phase and three phase flows
Ngày tải lên :
28/09/2015, 13:28
... root of ratio of pressure gradient of liquid to that of gas In their model ( ) is the pressure drop in the pipeline if gas alone is flowing through it and is the term, which is a function of non-dimensional ... single phase flow pressure drop In this model the value of C was estimated from curve fitting of experimental data The terms A and B denote the single phase pressure drop of liquid and gas respectively ... concurrent flow of liquid and gas in vertical conduits, models capturing viscosity of suspensions and emulsions, phase inversion phenomenon and pressure drop prediction in two and three phase...
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Optimization of injection timing and injection pressure of a DI diesel engine fueled with preheated rice bran oil
Ngày tải lên :
05/09/2013, 16:11
... bTDC of injection timing and 230 bar of injection pressure Similarly the brake thermal efficiency was lower at 21°CA bTDC of injection timing and 230 bar of injection pressure The oxides of nitrogen ... CA bTDC of injection timing and 230 bar of injection pressure except for NOX The ignition delay is neither minimum nor maximum at 21° CA bTDC of injection timing and 230 bar of injection pressure ... Performance and emission parameters at standard injection timing (23° deg bTDC) and injection pressure (200 bar) The performance and emission parameters at the standard injection timing and pressure...
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Báo cáo khoa học: "A Structured Model for Joint Learning of Argument Roles and Predicate Senses" pot
Ngày tải lên :
30/03/2014, 21:20
... between the predicate and the argument candidates The number of dependency edges between the predicate and the argument candidate Plemma and plemma&ppos of the argument candidate Dependency label ... predicate’s dependents Plemma and ppos of the predicate, the predicate’s head, the argument candidate, and the argument’s head Plemma and ppos of the leftmost/rightmost dependent and leftmost/rightmost ... label of predicate, argument candidate and argument candidate’s dependent The position of the argument candidate with respect to the predicate position in the dep tree (e.g CHILD) The position of...
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theory and problems of probability, random variables, and random processes - hwei p. hsu
Ngày tải lên :
31/03/2014, 16:25
... Schaum's Outline of Theory and Problems of Probability, Random Variables, and Random Processes Hwei P Hsu, Ph.D Professor of Electrical Engineering Fairleigh Dickinson University Start of Citation[PU]McGraw-Hill ... Large Numbers and the Central Limit Theorem Solved Problems Chapter Random Processes 5.1 Introduction 5.2 Random Processes 5.3 Characterization of Random Processes 5.4 Classification of Random Processes ... Functions of One Random Variable 4.3 Functions of Two Random Variables 4.4 Functions of n Random Variables 4.5 Expectation 4.6 Moment Generating Functions 4.7 Characteristic Functions 4.8 The Laws of...
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Báo cáo hóa học: " Research Article A Simulation Study: The Impact of Random and Realistic Mobility Models on the Performance of Bypass-AODV in Ad Hoc Wireless Networks" pdf
Ngày tải lên :
21/06/2014, 11:20
... objectives (1) To study the impact of other well-known random mobility models, Random Walk (RW) [5] and Random Direction Mobility (RDM) [3], on the performance of the Bypass-AODV routing protocol ... unpredictable movement of particles in physics In this model, a node moves from its current position to a new position by selecting a random direction and a random speed The node randomly and uniformly ... FRW, and MAN mobility models These findings are important for understanding the behavior of routing protocols and their effect on TCP performance Figures and show the percentage of short and medium...
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Báo cáo nghiên cứu khoa học: "NUMERICAL MODEL OF SINGLE PHASE TURBULENT FLOWS FOR CALCULATION OF PRESSURE DROP ALONG GAS PIPELINES " doc
Ngày tải lên :
22/07/2014, 10:21
... flow measured at standard condition, m3/h • psc: pressure at standard condition, kPa • Tsc: temperature at standard condition, K • Tc, pc: critical temperature and pressure of gas mixture Tc = ... 3.1 along the associated gas pipeline of flow equations of Weymouth, Panhandle A, Panhandle B and Clinedinst are stored in table 3.2a and 3.2b Table 3.2a Pressure along associated gas pipeline ... 3.1 along the associated gas pipeline of flow equations of Weymouth, Panhandle A, Panhandle B and Clinedinst are stored in table 3.3a and 3.3b Table 3.3a Pressure along associated gas pipeline...
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Báo cáo toán học: "Jack deformations of Plancherel measures and traceless Gaussian random matrices" pptx
Ngày tải lên :
07/08/2014, 21:21
... random partitions and GUE random matrices In random matrix theory, there are two much-studied analogues of the GUE matrix, called the Gaussian orthogonal (GOE) and symplectic (GSE) ensemble random ... These are discrete analogues of GOE and GSE random matrices Via the RSK correspondence between permutations and pairs of standard Young tableaux, we see connections with random involutions In the ... a connection between Plancherel random partitions and random matrix theory Applying the technique used in the proof of our main result, we obtain a short proof of Regev’s asymptotic theorem Throughout...
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Báo cáo lâm nghiệp: "Within-crown variation in leaf conductance of Norway spruce: effects of irradiance, vapour pressure deficit, leaf water status and plant hydraulic constraints" ppt
Ngày tải lên :
08/08/2014, 01:21
... conductance of Norway spruce depending on the level of irradiance and vapour pressure deficit; (2) assess the contribution of the leaf water status and liquid phase conductance to the control of leaf ... entire range of VPD and thus permits comparison of the data independently of specific VPD ranges On the basis of transpiration rates and water potential differences between the soil and leaves, ... Effects of irradiance and atmospheric evaporative demand Responses of leaf conductance to irradiance varied widely within a canopy of Norway spruce, depending on both shoot position and age (Fig and...
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Báo cáo khoa hoc:"Genetic parameters of a random regression model for daily feed intake of performance tested French Landrace and Large White growing pigs" pptx
Ngày tải lên :
09/08/2014, 18:21
... matrix of random regressions of additive genetic effects and P0 , L0 and E0 are (co)variance matrices for random regressions of permanent environmental effects All these (co)variance matrices are of ... the number of animals in the pedigree, number of pens, number of litters and number of animals in the test, respectively; σεm is the residual variance of day on test dm and X, Z, U, V and W are ... selection 637 Random regression for feed intake of pigs Table I Number of animals with records of weekly means of feed intake per day (LW = Large White; FL = French Landrace; % = proportion of tested...
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Báo cáo y học: "Acute pressure overload of the right ventricle. Comparison of two models of right-left shunt. Pulmonary artery to left atrium and right atrium to left atrium: experimental study" doc
Ngày tải lên :
10/08/2014, 09:22
... (Figure 1) The banding was persistent until pulmonary artery pressure proximal of the banding was double than pressure distally of the banding RVF following pulmonary artery banding was defined ... The central venous pressure (mean), the mean pressure of left atrium, the cardiac output, the pressure of the distal portion of pulmonary artery at baseline and during 10 and 20 minutes interval ... proximal and distal directly rather than to introduce a Page of 10 catheter Swan Ganz through the tricuspid valve because of the enhanced stability and reproducibility of the pressure and volumetric...
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Báo cáo y học: "Wound contraction and macro-deformation during negative pressure therapy of sternotomy wounds" doc
Ngày tải lên :
10/08/2014, 09:22
... width of the wound and anterior-posterior thickness of the wound edge was measured in the images taken before and after initiation of NPWT at -75, -125 and -175 mmHg Materials and methods Animals ... procedure was Page of repeated for each negative pressure (-75, -125, and -175 mmHg) In order to eliminate time effects, the sequence of application of the three different negative pressures was varied ... anterior-posterior thickness of the soft tissue, including the subcutaneous and muscle tissue, was measured at a distance of 0.5 cm and 2.5 cm from the wound edge (Figure 1) Calculations and statistics Statistical...
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Báo cáo y học: " Forefoot pathology in rheumatoid arthritis identified with ultrasound may not localise to areas of highest pressure: cohort observations at baseline and twelve months" ppt
Ngày tải lên :
10/08/2014, 21:24
... utilising investigation of other foot pressure variables, such as duration of peak pressure, pressure- time integrals and centre of pressure relative to forefoot soft tissue pathology and patient reported ... changes in the presence and location of US detectable forefoot pathology and value and location of peak pressure at baseline for both RA and healthy participants and after a period of twelve months ... which the peak pressure of the footstep was identified To determine relations in locations of US detectable forefoot pathology and location of peak pressure, cases in which the peak pressure was...
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A randomized controlled trial of interventions to enhance patient-physician partnership, patient adherence and high blood pressure control among ethnic minorities and poor persons: study protocol NCT00123045 pptx
Ngày tải lên :
11/08/2014, 05:21
... size two and four were used, and a list of random numbers between zero and one was generated in Stata version 7.0 (Stata corporation, Texas, USA) Patients were randomly assigned to the minimal ... providers', and CHWs' report of patient compliance) These indicators tap different dimensions of the compliance challenge and reflect varied levels of patient effort and commitment and measurement ... DR, LB, EM, MB, and DL conceived of and designed the study LC, DR, SL, EM and KC participated in the analysis and interpretation of data KC provided statistical expertise LC and DR drafted the...
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báo cáo khoa học: " Behavior of osteoblastic cells cultured on titanium and structured zirconia surfaces" ppsx
Ngày tải lên :
11/08/2014, 20:20
... composition of commercial pure titanium and zirconium dioxide Titanium disks were composed of the elements titanium and oxygen but also traces of silicium and carbon were detected Zirconia consisted of ... osteoblastic cells Recently Rothamel and coworkers [19] investigated the biocompatibility and osseointegration of structured zirconia implants in vitro and in vivo The growth of osteoblastlike SAOS-2 cells ... undertaking of the study, interpreted the data, reviewed the paper for content, and reviewed and contributed to the writing of all iterations of the paper, including the final version of the manuscript...
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báo cáo khoa học:" Combination of surgical excision and custom designed silicon pressure splint therapy for keloids on the helical rim" ppt
Ngày tải lên :
11/08/2014, 23:22
... Evaluation of various methods of treating keloids and hypertrophic scars: a 10year follow-up study Br J Plast Surg 1992, 45(5):374-9 Lawrence WT: In search of the optimal treatment of keloids: report of ... search, revision of bibliography and helped with editing of the manuscript PB: Helped in preparing the draft BM: Edited most of the manuscript PA: Revised and edited the manuscript and helped in ... report of a series and a review of the literature Ann Plast Surg 1991, 27(2):164-78 Fulton JE: Silicone gel sheeting for the prevention and management of evolving hypertrophic and keloid scars...
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Báo cáo y học: "Recently published papers: Take your predictions with a drop of saline … and breathe deeply before turning on your phone" ppt
Ngày tải lên :
12/08/2014, 20:20
... breaths/min; and diastolic blood pressure ≤ 60 mmHg or systolic blood pressure
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Báo cáo y học: "Biphasic positive airway pressure and airway pressure release ventilation Christian Putensen1 and Hermann Wrigge2 for Anesthesiology and Intensive Care Medicine, Department of Anaesthesiology and Intensive Care" docx
Ngày tải lên :
12/08/2014, 20:20
... influence of controlled mandatory ventilation (CMV), intermittent mandatory ventilation (IMV) and biphasic intermittent positive airway pressure (BIPAP) on duration of intubation and consumption of ... Comparison of oxygen cost of breathing with pressure- support ventilation and biphasic intermittent positive airway pressure ventilation Crit Care Med 1998, 26:1518-1522 Steinhoff H, Falke K, Schwarzhoff ... required higher doses of vasopressors and positive inotropes to maintain stability of cardiovascular function [16] Setting ventilation pressures and tidal volumes during airway pressure release ventilation/biphasic...
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Báo cáo khoa học: "Influence of support on intra-abdominal pressure, hepatic kinetics of indocyanine green and extravascular lung water during prone positioning in patients with ARDS: a randomized crossover study" pot
Ngày tải lên :
12/08/2014, 22:21
... period of stabilization of blood oxygen saturation Finally, the lower level of PEEP giving the greater improvement of oxygenation was chosen The levels of PEEP, the tidal volume and a fraction of ... position after hour of steady-state conventional mechanical ventilation Then the following two periods of PP were randomized: hours of PP on the moulded foam mattress, and hours of PP on the air-cushioned ... AR and LP were the principal investigators and led the conceptual design of the design and the manuscript preparation MG made contributions to the acquisition of data and to the analysis and...
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