m sci university of science and technology of china china

Performance of microwave activated adsorption cycle theory and experiments

Ngày tải lên : 11/09/2015, 10:16

... condenser ( kg ) M evap mass of evaporator ( kg ) M fin mass of fin ( kg ) m oil mass of transformer oil ( kg ) M ref,cond mass of refrigerant in condenser ( kg ) - xiv - M ref,evap mass of refrigerant ... 10mm above the bottom (First temperature sensor) (c) plane surfaces 30 mm (Second temperature Sensor) and 70 mm (Third temperature Sensor) above the bottom Figure 4.21 Simulation and experimental ... (FETD) method (Dibben and Metaxas, 1994), the moment method (MM) (Ney, 1985), and the transmission line method (TLM) (Johns and Beurle, 1971) If workload has a high permittivity, this may cause...

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báo cáo sinh học:" What can health care professionals in the United Kingdom learn from Malawi?" pdf

Ngày tải lên : 18/06/2014, 17:20

... the similarities and shared ambitions of health professionals worldwide Many professionals now have experience of working in more than one country and have an unmet aspiration to work and help ... structure of district health offices (DHO) with a chain of command, although not always accompanied by the logistic or fiscal capability to implement policy Medical records The medical records system ... provides a complete and integrated record of immunizations, preventive health care priorities, major medical morbidities and a continuation record of clinical encounters In the United Kingdom we could...

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Báo cáo lâm nghiệp: "Field trials of potential attractants and inhibitors for pine shoot beetles in the Yunnan province, China" pps

Ngày tải lên : 08/08/2014, 00:21

... xylem and twig xylem and phloem of Yunnan pines Unlike Pinus sylvestris L., a major host of T piniperda in Europe, the trunk xylem of P yunnanensis contained very little ∆3-carene [2], which may ... results and the profiles of monoterpene composition of Yunnan pines [2, 7] could be used to guide the development of new lures for Tomicus n sp The timing of the study also may have affected ... bionomy of Tomicus piniperda L (Coleoptera: Scolytidae) in the Kunming region of China, J Appl Entomol 112 (1991) 366–369 [26] Ye H., Influence of temperature on the experimental population of...

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Ceftriaxone-induced up-regulation of cortical and striatal GLT1 in the R6/2 model of Huntington’s disease pps

Ngày tải lên : 10/08/2014, 05:21

... Journal of Biomedical Science 2010, 17:62 http://www.jbiomedsci.com/content/17/1/62 Page of Figure Effects of ceftriaxone on GLT1 expression in cerebral cortex and striatum at weeks of age Immunoblots ... that mechanisms are in place to compensate for increased glutamate removal Whether HD mice lack these mechanisms or simply benefit from an increased rate of glutamate uptake remains to be determined ... b-tubulin immunoblotting as a loading control Chemiluminescent detection of HRP (SuperSignal West Pico; Pierce) was followed by exposure of the membranes to a Kodak BioMax MR film (Thermo Fisher Scientific)...

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báo cáo khoa học: " Can learning organizations survive in the newer NHS?" pps

Ngày tải lên : 11/08/2014, 05:22

... less conceptual, more descriptive and pragmatic Competence and ways of thinking Models of learning organisations are mainly derived from studies of the more adaptive commercial firms [22,23], though ... necessarily manifest a mixture of consistent vision and personal Page of 11 (page number not for citation purposes) Implementation Science 2006, 1:27 http://www.implementationscience.com/content/1/1/27 ... One aim of clinical governance policy and, in a more formal way, case management in primary care (embodied in community matron policy) is to make the audit of services both at care-group and individual...

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BÀI LUẬN TIẾNG ANH HAY how i can stop wasting things in the house

Ngày tải lên : 21/08/2015, 15:19

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Trường điện từ - electromagnetic field theory

Ngày tải lên : 12/10/2012, 15:00

... Exm A Mym khác 0, ta có • • • • A Erm = A Exm sin θ cos ϕ (2.108) A E m = A Exm cos θ cos ϕ • • A E m = − A Exm sin ϕ • • • • A Mrm = A Mym sin θ sin ϕ (2.109) A M m = A Mym cos θ sin ϕ • • A M m ... Mm l = µµ0 I m πR iω •  • •  I Mm l  P M = q Mm l = iω •  P M gọi moment lưỡng cực từ Đặt 47 (2.96) (2.97) • • •    P Mv = S0µµ0 I m S = S0µµ0 I m πR (2.98) • •  P Mv gọi moment từ vòng ... phân • • • •      ∇ E 1m × m − E m × 1m  H H   ∇     • • • •       − J M1 m H m −J M m H 1m       • • • •      =J E 1m E m −J E m E 1m −   (1.78) Dạng tích phân...

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TRƯỜNG ĐIỆN TỪ - ELECTROMAGNETIC FIELD THEORY - chương 2

Ngày tải lên : 17/10/2013, 17:15

... E 1m × H m ⎟ − ∇.⎜ E m × H 1m ⎟ = J E 1m E m − J E m E 1m − ⎜ ⎟ ⎜ ⎟ ⎝ ⎠ ⎝ ⎠ • • • • r r r ⎞ ⎛r − ⎜ J M 1m H m − J M m H 1m ⎟ ⎜ ⎟ ⎝ ⎠ (1.78) Dạng tích phân • • • • r ⎞ ⎛r r ⎞⎞ ⎛⎛ r ⎜ ⎜ E 1m × H m ⎟ ... ⎞⎞ ⎛⎛ r ⎜ ⎜ E 1m × H m ⎟ − ⎜ E m × H 1m ⎟ ⎟dS = ∫ ⎜⎜ ⎟ ⎜ ⎟⎟ ⎠ ⎝ ⎠⎠ S ⎝⎝ • • • • • • • • r r ⎞ ⎛r r r r ⎞ ⎛r r = ∫ ⎜ J E 1m E m − J E m E 1m ⎟ − ⎜ J M1 m H m − J M m H 1m ⎟dV ⎜ ⎟ ⎜ ⎟ ⎠ ⎝ ⎠ V⎝ (1.79) ... E 1m E m − J E m E 1m ⎟ − ⎜ J M1 m H m − J M m H 1m ⎟dV = ⎟ ⎜ ⎟ ⎜ ⎠ ⎠ ⎝ V⎝ (1.80) Nguyên lí tương hỗ Giả sử m i trường đồng đẳng hướng, nguồn điện từ phân bố V1, nguồn điện từ phân bố V2 thể tích miền...

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TRƯỜNG ĐIỆN TỪ - ELECTROMAGNETIC FIELD THEORY - chương 3

Ngày tải lên : 20/10/2013, 05:15

... • H ym • r Hm • O E xm x • r Em • r• r• r• r• r E m = i E xm + j E ym = i E xm = i E m • r • r • r • r • r H m = i H xm + j H ym = j H ym = j H m • E ym = • H xm = (3.6) Từ phương trình Maxwell ... • • • • E 1m = E1mx , E m = E mx , • • • • • H 1my = H 1m cos ϕ t H ′1my = H ′ 1m cos ϕ t , • E ′ 1m = E ′1mx • • H my = H m cos ψ (3.52) • • H 1m E 1m = Z1 • E′ 1m H′ 1m = Z1 • • • H 2m Trong đó: ... nghi m (3.3), (3.4) ta có • r • r m i liên hệ E m H m cho sóng tới sóng phản xạ sau • • • E mt = E xmt • • μμ • ∂ H ymt =− = H ymt = Z P H mt εP iωε P ∂z • • E mpx = E xmpx = − μμ ∂ H ympx =− H ympx...

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TRƯỜNG ĐIỆN TỪ - ELECTROMAGNETIC FIELD THEORY - chương 4

Ngày tải lên : 20/10/2013, 05:15

... Exm A Mym khác 0, ta có • • • • A Erm = A Exm sin θ cos ϕ A E m = A Exm cos θ cos ϕ • (2.108) • A E m = − A Exm sin ϕ • • • • A Mrm = A Mym sin θ sin ϕ A M m = A Mym cos θ sin ϕ (2.109) • • A M m ... • I Mm l = μμ I m πR iω Đặt • r • • r I Mm l r P M = q Mm l = iω (2.97) • r P M gọi moment lưỡng cực từ Đặt • • • r r r P Mv = S0μμ I m S = S0μμ I m πR (2.98) • • r P Mv gọi moment từ vòng dây ... d’Alambert (2.12), (2.13) (2.16) viết dạng biên độ phức sau • r • • r r ∂ A Em ∇ A Em − k = −μμ J Em ∂t • ∂ ϕEm ρ ∇ ϕEm − k =− m ∂t εε • 2 • r • • r r ∂ A Mm ∇ A Mm − k = −εε J Mm ∂t • ∂ ϕMm ρ...

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TRƯỜNG ĐIỆN TỪ - ELECTROMAGNETIC FIELD THEORY - chương 5

Ngày tải lên : 24/10/2013, 04:15

... J m (ka ) ( ) H m (kr )e imϕ (2 ) H m (ka ) • H mr = • m E mzt ∞ m mJ (ka ) ∑ (− i ) H ( 2m) (ka ) H (m2 ) (kr )e imϕ μμ ωr m = −∞ m (4.6) • (2 ) E mzt ∞ =− (− i )m J m2 (ka ) ∂H m (kr ) e imϕ ... ⎛ r ⎞ 1 ⎛ ∇⎜ ∇ A Em ⎟ − iω A Em − ⎜ ∇ × A Mm ⎟ ⎟ ⎟ iωεε μμ ⎜ εε ⎜ ⎝ ⎠ ⎝ ⎠ • • • • r ⎞ r r ⎛ r ⎞ ⎛ ⎜ ∇ × A Em ⎟ + Hm = ⎜ ⎟ ⎜ ⎟ iωεε μμ ∇⎜ ∇ A Mm ⎟ − iω A Mm μμ ⎝ ⎝ ⎠ ⎠ 0 • r Em = (4.40) Xét trường ... H m từ phương trình đầu vào phương trình cuối hệ (4.1) ta có: • • • • ∂ E mz ∂ E mz ∂ E mz + + + k E mz = 2 ∂r r ∂r r ∂ϕ (4.5) Nghi m (4.5) có dạng: • • E mz = − E mzt ∞ ∑ (− i ) m = −∞ • H m ...

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Tài liệu FIELD INTENSITY and POWER DENSITY doc

Ngày tải lên : 12/12/2013, 09:15

... Intensity and Power Density PD = E2/Z0 ( Related by free space impedance = 377 ohms ) E (Volts /m) 20 log 106 (E) (dBµV /m) PD (watts /m2 ) 10 Log PD (dBW /m2 ) Watts/cm2 dBW/cm2 mW/cm2 dBm/cm2 dBm /m2 7,000 ... = ( E2/120B = c /f )( 82G/4B) terms mW (dBm) (v2 /m2 S) (m2 ) Section 2-3, terms (m/ sec)(sec) ˆPr = ( E2/480B2 )( c G/f 2) which is equation [3] terms (v2 /m2 S)( m2 /sec2)(sec2) or v2/S = watts 4-1.3 ... terms plus field intensity and voltage terms from Table and Table Refer the examples in Section 4-12 for usage of the conversions while converting free space values of power density to actual measurements...

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Tài liệu TRƯỜNG ĐIỆN TỪ - ELECTROMAGNETIC FIELD THEORY - chương 1 pptx

Ngày tải lên : 26/01/2014, 02:20

... ∂z ⎟ + j⎜ ∂z − ∂x ⎟ + k ⎜ ∂x − ∂y ⎟ ⎟ ⎜ ⎟ ∂z ⎠ ⎝ ⎝ ⎠ ⎝ ⎠ az Số phức H m mũ e z = e x +iy = e x (cos y + i sin y ) H m mũ h m tuần hoàn có chu kì 2πi Thực vậy, ta có e kπi = cos 2kπ + i sin 2kπ ... hai phương trình bậc h m chưa biết đạo h m nó: y′′ + a y′ + a y = f ( x ) (3) Trong đó: a1 a2 h m biến độc lập x; f(x) ≠ Định lí Nghi m tổng quát phương trình không (3) nghi m tổng quát phương trình ... dạng: y′′ + a1 y′ + a y = (2) a1, a2 h m biến x Định lí Nếu y1 = y1(x) y2 = y2(x) nghi m (2) y = C1y1 + C2y2 (trong C1, C2 số tuỳ ý) nghi m phương trình Hai h m y1(x) y2(x) độc lập tuyến tính y1...

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Báo cáo khoa học: Ferrous Campylobacter jejuni truncated hemoglobin P displays an extremely high reactivity for cyanide – a comparative study ppt

Ngày tải lên : 16/03/2014, 06:20

... azide and cyanide binding to mammalian metmyoglobins J Biol Chem 269, 13843–13853 49 Milani M, Pesce A, Ouellet Y, Ascenzi P, Guertin M & Bolognesi M (2001) Mycobacterium tuberculosis hemoglobin ... ð4Þ Thermodynamics of cyanide binding to Mt-trHbN(III), Mt-trHbO(III), and Cj-trHbP(III) The thermodynamics of cyanide binding to Mt-trHbN(III), Mt-trHbO(III) and Cj-trHbP(III) were determined ... chemicals (from Merck AG, Darmstadt, Germany) were of analytical grade and were used without further puriﬁcation Kinetics of cyanide binding to Mt-trHbN(III) and Mt-trHbO(III) The kinetics of...

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Electromagnetic field theory - bo thide

Ngày tải lên : 17/03/2014, 13:45

... 135 138 144 M. 1 Surface element of a material body 164 M. 2 Tetrahedron-like volume element of matter 165 vii To the memory of L EV M IKHAILOVICH E RUKHIMOV dear friend, ... electrostatics and magnetostatics and their unication into electrodynamics, the electromagnetic potentials, gauge transformations, covariant formulation of classical electrodynamics, force, momentum and ... of Fields and Matter 7.1 Electric polarisation and the electric displacement vector 7.1.1 Electric multipole moments 7.2 Magnetisation and the magnetising eld 7.3 Energy and...

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selfridge, arnold, warnick. teaching electromagnetic field theory using differential forms

Ngày tải lên : 24/04/2014, 16:51

... 13] D Baldomir and P Hammond, \Global geometry of electromagnetic systems," IEE Proc., vol 140, no 2, pp 142{150, Mar 1992 14] P Hammond and D Baldomir, \Dual energy methods in electromagnetics ... 3-forms are both one-dimensional, and the spaces of 1-forms and 2-forms are both three-dimensional The star operator ? is a set of isomorphisms between these pairs of vector spaces For 1-forms and ... Applied to electromagnetics, di erential forms combine much of the generality of tensors with the simplicity and concreteness of vectors General treatments of di erential forms and EM theory include...

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Charged particle in a electromagnetic field 2

Ngày tải lên : 24/05/2014, 19:10

... particle of the mass m and charge q in an electromagnetic ﬁeld given by the scalar and vector potentials ϕ and A Solution: The x-component of the conjugate momentum is px = ∂L ∂ q q 2 = m[ vx + ... = mvx + Ax (25) ∂x ˙ ∂vx c c The same for y- and z-components q py = mvy + Ay c (26) and q pz = mvz + Az (27) c The second terms in these expressions play the role of a potential momentum The ... the total energy of the system is conserved as it might be Problem 16 A particle of the mass m and charge q moves in a constant magnetic ﬁeld B = (0, 0, B) Show that the orbit of a particle is...

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Charged particle in a electromagnetic field 3

Ngày tải lên : 24/05/2014, 19:10

... Hamiltonian of system now deﬁned as ˙ H[p, r] = p · r − L, (7) with canonical momentum ∂L ˙ = mr + qA ˙ ∂r Replacing velocities with momenta yields p= H= 2m (p − qA)2 + qφ (8) (9) Note: In QM ... sample This gives upper bound on ν, eB 0≤ν≤ LxLy ≡ νmax (35) 2π¯ h Natural unit of length size of orbit B = h ¯ eB (36) So maximum number of electrons which can occupy given Landau level is νmax ... n is the total number of electrons per unit area, νmax is the number of electrons per Landau level, and N is the number of ﬁlled levels 10 This is the extent of the naive argument for IQHE Note...

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Lagrangian of charged particle in electromagnetic field

Ngày tải lên : 24/05/2014, 19:12

... h m Lagrange hạt là: ru r L = T − q ϕ − v.A ( m ) nên: r2 ur r 1 r2 T = mv L = mv − q ϕ − A.v 2 Trọng hệ tọa độ Cartes thì: r & &&  v = (x; y;z) r u A = (A x ;A y ; A z )  2 & & & T = m ... A.i = −q x & & & ∂& dt ∂x dt 2x3 ∂& dt ∂x dt  ∂x {x ÷ dt dt =0 =0   u không phụ thuộc tường minh vào u r r & x ∂ ( qϕ ) ∂A ϕ; A = 0; =0 & & ∂x ∂x Vậy, ru r dA x d ∂ −q = qϕ − qv.A & dt dt ... & &&  v = (x; y;z) r u A = (A x ;A y ; A z )  2 & & & T = m x + y + z  ⇒ & & & & & & L = m x + y + z − q ϕ − ( A x x + A y y + A z z )    ur r U = q ϕ − A.v suy rộng là: ( ) ( ( )...

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maxwell jc - a dynamic theory of the electromagnetic field

Ngày tải lên : 04/06/2014, 12:44

... left and of com- to another, it must have formerly the source of heat some time before they reached the body, and during that time the energy must have been half in medium and half in the form of ... We may call Cp*u+Opqv the momentum of C referred to A, and Cpqu+Ctfv its momentum referred to B then we may say that the effect of the force X is to increase the momentum of C referred to A, and ... galvanometer and dynamometer we may find and we may then make use of ; method of Weber for estimating the intensity and duration of a current uniform while it lasts which would produce the same effects,...

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