si physical quantities and their dimensions
steinmetz cp complex-quantities-and-their-use-in-electrical-engineering
Ngày tải lên :
04/06/2014, 12:33
... called the intensity of the sine-wave, and its amplitude, A O B = «5, is called the phase of the sine-wave The sine-wave is completely determined and characterized by intensity and phase It is ... that sine-waves are combined by adding their rectangular components, we have : " Sine-waves are combined by adding their complex algebraic expressions." For instance, the sine-waves: a +jb and ... energy by hysteresis (and eddies), for it is: , energy consumed by hysteresis primary E M F ' ÆTHE ORCE RF 50 STEINMETZ ON COMPLEX QUANTITIES And since C^ can be calculated from shape and characteristic...
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Hydrocarbons physical propertises and their relevance to utilisation
Ngày tải lên :
09/03/2016, 10:21
... Viscosity 1.2.1 Definitions, dimensions and units Viscosity, usually qualitatively described as ‘resistance to flow’, has dimensions: M L-1T-1 hence in SI the units are kg m-1 s-1 Now the SI unit ... viscosities First, the units and dimensions of kinematic viscosity are the same as those of diffusion coefficients and of thermal diffusivities Kinematic viscosities therefore feature in dimensionless ... Hydrocarbons – Physical Properties and their Relevance to Utilisation Physical properties of gasolines Physical properties of gasolines 3.1 Introduction Gasoline might of course simply be a straight...
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Báo cáo hóa học: " Review of thermo-physical properties, wetting and heat transfer characteristics of nanofluids and their applicability in industrial quench heat treatment" pot
Ngày tải lên :
21/06/2014, 04:20
... volume fraction, and temperature [66] Xue and Xu derived a model which consists of the thermal conductivity of the solid and liquid, their relative volume fraction, the particle size and interfacial ... clusters and their size distribution [64] Xue presented a novel model considering the interface effect between the solid particles and the base fluid in nanofluids based on Maxwell theory and average ... average crystallite sizes below 50 nm [8] The unique properties of these nanoparticles are (i) size dependent physical properties, (ii) large surface area, (iii) large number density and (iv) surface...
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Báo cáo hóa học: "Platinum Assisted Vapor–Liquid–Solid Growth of Er–Si Nanowires and Their Optical Prope" potx
Ngày tải lên :
22/06/2014, 00:20
... InGaAs diode, and the standard lock-in technique The low-temperature measurements were made using a closed-cycle cryostat Results and Discussion Figure 1a, b shows an SEM image of SiNWs grown on ... of Er, Si, and O in the surface layer, and a high-resolution TEM image of the surface region shows the presence of a single-crystalline layer sandwiched between nanometer-thin amorphous silica ... both Si and Er are supplied to the catalyst in supersaturation Since Er and Si have solubility to Pt or Au [20, 21], respectively, Er can precipitate at the interface between the catalyst and...
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Báo cáo y học: "Psychological complications of childhood chronic physical illness in Nigerian children and their mothers: the implication for developing pediatric liaison services" potx
Ngày tải lên :
13/08/2014, 18:21
... short and long term outcome of childhood chronic physical illness This study determined and compared the prevalence and pattern of emotional disorders among children and adolescents with SCD and ... chronic physical illness and confirms that emotional disorders are more prevalent among children with chronic medical illness Looking at specific DSM-IV anxiety and depressive disorders, and their ... chronic physical illness and this could have enhanced the findings of the study Though not statistically significant, the differences in the mean ages of the children and their mothers and maternal...
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Báo cáo y học: "Getting out and about in older adults: the nature of daily trips and their association with objectively assessed physical activity" doc
Ngày tải lên :
14/08/2014, 08:21
... recorded Also during visit #1 height and weight were measured using stadiometer and portable scales respectively, and physical function was assessed using the Short Physical Performance Battery ... vigorous physical activity per day NTS, National Travel Survey OPAL, Older People and Active Living PA ,physical activity PF, physical function SD, standard deviation SE, standard error SPPB, Short Physical ... frequency and physical activity We aggregated trip data to weekly totals and averaged the weekly volume of physical activity to daily totals and show a general association between trip frequency and physical...
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Luận văn tiến sĩ DEPARTMENTAL DIFFERENCES IN ATTITUDES TO SPECIAL EDUCATIONAL NEEDS AND THEIR IMPACT ON PRACTICE IN THE SECONDARY SCHOOL
Ngày tải lên :
11/10/2014, 04:18
... features of responsible and irresponsible inclusion Features of responsible inclusion include putting the student first, the teachers choosing to participate, adequate resources and a continuum ... .198 Table 34: Similarities and differences between Jane and Pat 199 Table 35: Science and English compared 200 Table 36: Similarities and differences between Jane and Kate ... Corbett and Norwich (1997) argue that this is not necessarily the case It looks for features outside the child and emphasises their rights (Allan, Brown and Riddell 1998), thus promoting more positive...
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Depression, cognitive impairment and physical functional outcome and their associated factors in stroke patients in community hospital care
Ngày tải lên :
04/10/2015, 10:24
... analysis of the factors associated with post stroke depression on admission 56-57 Multiple Logistic regression analysis of depression in stroke patients on admission 58 Univariate analysis of ... seeking their informed verbal consent upon their admissions and upon their planned discharges, using Barthel Index for ADL dependency, Geriatric Depression Scale, Abbreviated Mental Test and the ... index using logistic regression to achieve the following, viz eating, grooming, and dressing the upper body, continence in bladder and bowel and transfer between a bed and chair with supervision...
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Attackers and Their Attacks
Ngày tải lên :
17/09/2012, 10:43
... spread disinformation and propaganda – Deny service to legitimate computer users – Commit unauthorized intrusions into systems and networks that result in critical infrastructure outages and corruption ... system using a dialog box • Attackers attempt to exploit weak passwords by password guessing Password Guessing (continued) Password Guessing (continued) • Characteristics of weak passwords: – Using ... actually they are sending and receiving data with a computer between them • Can be active or passive: – Passive attack: attacker captures sensitive data being transmitted and sends it to the original...
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Báo cáo y học: " Predictors of hepatic steatosis in HBeAg-negative chronic hepatitis B patients and their diagnostic values in hepatic fibrosis"
Ngày tải lên :
25/10/2012, 11:48
... (51~75% involved) and F4 (>75% hepatocytes involved) Fibrosis stage was defined as S0 (no fibrosis), S1 (mild fibrosis), S2 (moderate fibrosis), S3 (severe fibrosis), and S4 (cirrhosis), and grade of ... in buffered formalin, embedded in paraffin, and stained with hematoxylin-eosin-safran and Masson's trichrome Hepatic steatosis, stage of fibrosis and grade of disease activity were determined ... assessment and management of non-alcoholic fatty liver disease in the Asia-Pacific region (8) Microvesicular steatosis was also graded as: F0 (
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LEAN MANUFACTURING PRINCIPLES AND THEIR APPLICATION 2008
Ngày tải lên :
07/02/2013, 09:23
... with permission of the copyright owner Further reproduction prohibited without permission Reproduced with permission of the copyright owner Further reproduction prohibited without permission Reproduced ... with permission of the copyright owner Further reproduction prohibited without permission Reproduced with permission of the copyright owner Further reproduction prohibited without permission Reproduced ... with permission of the copyright owner Further reproduction prohibited without permission Reproduced with permission of the copyright owner Further reproduction prohibited without permission Reproduced...
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Nghiên cứu xúc tiến bán của tập đoàn bán sỉ Metro Cash and Carry Việt Nam
Ngày tải lên :
19/07/2013, 10:14
... HACCP( Hazard Analysis and Critical Control Point) hệ thống quản lý chất lượng dựa sở phân tích mối nguy điểm kiểm soát trọng yếu Đó công cụ phân tích nhằm đảm bảo an toàn vệ sinh chất lượng thực ... xúc tiến bán Thì với dịp đặc biệt “sinh nhật Metro”, hình thức khuyến khích lại công ty biến tấu để làm vừa lòng khách hàng Việc kết hợp chương trình” năm sinh nhật Metro” loạt chương trình công ... phối đại Việt Nam dự báo lấn át kênh phân phối truyền thống Tính nay, doanh số kênh phân phối đại si u thị, trung tâm thương mại… tăng 19.4% cao nhiều tốc độ tăng trưởng doanh thu chợ-8.9%, cửa...
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GROWTH PERFORMANCE AND SPERM QUALITY OF STRESS NEGATIVE PIÉTRAIN BOARS AND THEIR HYBRIDS WITH DUROC
Ngày tải lên :
28/08/2013, 11:59
... Dong Hiep farm and CUD (Commission Universitaire pour le Développement) of (CIUF Conseil Interuniversitaire de la Communauté Francaise) for their contribution 221 Growth Performance and Sperm Quality ... Luc et al (2011) also observed similar result in a report on Piétrain and hybrid boars 2.3 Statistical analysis Growth performance (BW and ADG) were analysed using a linear model including the ... Piétrain, Du: Duroc, CC and CT: halothane genotypes Contrary to growth traits, LD and LM were highest for PiCT and PiCC; PiDu25 was lowest, simultaneously BF was thinnest for PiCT and PiCC; Pi25 was...
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Frequency of Routine and Flooding-stage Observations for Precise Annual Total Pollutant Loads and their Estimating Method in the Yodo River
Ngày tải lên :
05/09/2013, 09:38
... to both sides of the observation periods using the regression equations between flow (Q) and pollutant loadings (L), L=a･Q n with high regression coefficients (shown in Table 2) As both sides of ... required using both frequent routine observations and continuous observations during flooding events throughout the year On this basis, we propose an estimation method using regression equations ... River and their runoff characteristics (Ebise et al (2001, 2003, 2004 and 2006)) Here, pollutants contain organic matter, nutrients, SS and other measured substances Fig - Map of the Yodo River and...
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Undaria pinnatifida Habitat Loss in Relation to Sea Urchin Grazing and Water Flow Conditions, and Their Restoration Effort in Ogatsu Bay, Japan
Ngày tải lên :
05/09/2013, 09:38
... seaweed and aquaculture Midori Press, Tokyo, pp 133 - 144 Turner, M G., Gardner, R H and ÓNeill R V (2004) Landscape ecology in theory and practice: Pattern and process, Nakagoshi, N and Hara, ... bedrock, isolated rock, boulder, cobble, pebble, sand and mud according to the size classification of Fujita et al (2003) - 202 - Journal of Water and Environment Technology, Vol 7, No 3, 2009 (A) ... from the bottom and thus, allowing the recovery of U pinnatifida and other non-encrusting macroalgae Both buoyed reefs were made of wood and their length was 1.0 m with 1.0 m width and 16 cm height...
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Nitrogen Dynamics and Biomass Production in a Vertical Flow Constructed Wetland Cultivated with Forage Rice and their Mathematical Modeling
Ngày tải lên :
05/09/2013, 09:38
... this study The apparent density and porosity of the ando soil were 0.44×106 g/m3 and 0.676 m3/m3, respectively Gravels (diameter = ca to cm) were put into the gravel zone, and unwoven cloths were ... adsorption experiment (data not shown), and the soil density and water content were determined based on the physical properties of the soil mentioned above Nitrification and Denitrification The nitrification ... considered Consideration of organic nitrogen production and decomposition processes is desirable, which was not included in this model In addition, it is likely better that nitrite-nitrogen and...
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Characteristics of Leachate from Citrus Groves and their Changes in the Collecting Reservoirs in Matsuyama, Japan
Ngày tải lên :
05/09/2013, 10:17
... phosphate, and the mechanisms of the phenomena were considered to be biological uptake and transition to the bottom due to the increase of pH Other materials, such as heavy metals, were similar, and their ... Matsuyama is situated in Shikoku Island in the southwestern part of Japan The western side of the region faces the Seto Inland Sea, around which are Fig.1 - Location of study area and distribution ... growth chamber under dark condition, and the temperature was maintained constant between 10°C and 30°C RESULTS AND DISCUSSION Materials runoff characteristics and variation in the reservoir Fig...
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Changes of temperature data for energy studies over time and their impact on energy consumption and CO2 emissions. The case of Athens and Thessaloniki – Greece
Ngày tải lên :
05/09/2013, 16:10
... systems analysis, thermal and physical processes and equipment, internal combustion engines, utilization of renewable energy sources and de-pollution systems and technology for industrial and mobile ... Building and Environment 2010, 45, 89-93 [30] Pilli-Sihvola K., Aatola P., Ollikainen M., Tuomenvirta H Climate change and electricity consumption-Witnessing increasing or decreasing use and costs? ... indicator and the basis for calculations of heating and cooling energy demand [1] or for estimating bin data and heating and cooling degree-days at any base [2, 10, 11] Table shows the monthly and...
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Biochemical characterization of thermophilic lignocellulose degrading enzymes and their potential for biomass bioprocessing
Ngày tải lên :
05/09/2013, 16:11
... albumin as standard [38] All experiments were run in duplicate and standard deviations (SD) were calculated using Microsoft Excel and results were presented as average ± SD Results and discussion 3.1 ... degradation and conversion for sustainable production of bioenergy and highvalue products; enzyme production and catalysis, bioremediation and biorefineries Lew is the author of patents and over ... Energy and Industrial Products committee, and associate editor of Transactions of the ASABE Kasi’s research interests are in food process engineering and in the bioconversion of lignocellulosic...
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A study of the linguistic features of suggestion verbs in english and their vietnamese equivalents
Ngày tải lên :
26/11/2013, 13:17
... Literature Review and Theoretical Background; Chapter is Methods and Procedure; Chapter is Findings and Discussions; Chapter is Conclusions and Implications Chapter LITERATURE REVIEW AND THEORETICAL ... similarities and differences between the semantic features of ESVs and VSVs - Synthesizing the findings and drawing conclusions - Putting forward some implications for the teaching and learning English and ... newspapers and 12 short stories 3.6 DATA ANALYSIS With the collected data, we carry out the analysis of ESVs and VSVs in terms of the syntactic and semantic features The analysis results of the ESVs and...
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