the half wave antenna antenna arrays and the magnetic dipole antenna

Báo cáo hóa học: " Analysis of a Combined Antenna Arrays and Reverse-Link Synchronous DS-CDMA System over Multipath Rician Fading Channels" doc

Ngày tải lên : 23/06/2014, 00:20

... the lth path of the ﬁrst user Cl j (1,k) = wl(1) · v(θ (k) ) repj resents the spatial correlation between the array response vector of the kth user at the jth path and the weight vector for the ... such as the ratio of the specular component power to the Rayleigh fading power, the shape of MIP, and the number of antennas In all evaluations, processing gain is assumed to be 128, and the number ... to be detected The second term represents the MAI from (K − 1) other simultaneous users in the system The third term is the selfinterference (SI) for the user of interest Finally, the last term...

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Báo cáo hóa học: "A Combined Antenna Arrays and Reverse-Link Synchronous DS-CDMA System over Frequency-Selective Fading Channels with Power Control Error" doc

Ngày tải lên : 23/06/2014, 01:20

... control technique, the BS computes the time difference between the reference time generated in the BS and the arrival time of the dominant signal transmitted from each MS, and then transmits timing ... n(t), (6) where P is the average received power and ψl(k) is the phase of the lth path associated to the kth carrier λk corresponds to the PCE of the kth user which is a random variable due to ... vector for l H the lth path of the ﬁrst user Cl(1,k) = W(1) · V(θ (k) ) repj j l resents the spatial correlation between the array response vector of the kth user at the jth multipath and the weight...

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Development and implementation of efficient segmentation algorithm for the design of antennas and arrays

Ngày tải lên : 11/09/2015, 09:02

... systems, there is a need to enhance the impedance bandwidth of the antennas In this thesis, various wideband semi-circle probe-fed antennas and arrays are developed for wireless local area network These ... systems As antennas serve as the transition between the RF front-end circuitry and the radiation and propagation of electromagnetic waves in the free space, they play a critical role in the wireless ... or excite the patch These include the probe feed, the microstrip line feed, the aperture-coupled feed and the proximity coupled feed The feeding techniques have their own advantages and disadvantages...

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Thickness shear mode acoustic wave sensor in liquid and the frequency interference between laterally coupled channels

Ngày tải lên : 16/09/2015, 15:53

... Eggers and Funck [1987] demonstrated the relationship between the acoustic impedance and the fluid properties The close relation between the physical properties of the loading film and the measured ... of the acoustic wave sensors is presented, as well as the literature reviews about the QCMs and the development of QCMs, Multi-channels QCMs In the final part of this chapter, the objective and ... 1997] For MQCM, this reflected wave will affect the resonance frequency of the channel, and also that of the other channels 1.4 Objectives and Organization of the Thesis 1.4.1 Objectives QCM has...

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Báo cáo " The magnetic properties and charge-ordering state in La1-xCaxMnO3 (x = 0.46; 0.50) compounds " doc

Ngày tải lên : 05/03/2014, 14:20

... the magnetic The magnetic properties and charge-ordering state in… 29 entropy change, ∆Smag, can be approximately calculated using isothermal magnetization measurements [7] Fig presents the magnetic ... the observation of the jumps at TCO=156 K and 150 K on the a.c susceptibility versus temperature plots for the x=0.46 and 0.50 samples, respectively Fig shows the temperature dependences of the ... Mn3+ and Mn4+ ions depends on the type of eg orbital occupied at the Mn3+ site, leading to the following charge/orbital pattern: along the a-axis, the same in-plane arrangement of Mn3+ and Mn4+...

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COOPERATIVE STEWARDSHIP: Managing the Nation’s Multidisciplinary User Facilities for Research with Synchrotron Radiation, Neutrons, and High Magnetic Fields ppt

Ngày tải lên : 06/03/2014, 15:20

... science and technology and to their use for the general welfare Upon the authority of the charter granted to it by the Congress in 1863, the Academy has a mandate that requires it to advise the federal ... are managed and funded either by the steward or by other federal agencies, industry, or private institutions (the partners) When their missions and interests coincide, the steward and the users ... provide candid and critical comments that will assist the authors and the NRC in making the published report as sound as possible and to ensure that the report meets institutional standards for...

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Báo cáo "Effects of Zn content on the magnetic and magnetocaloric properties of Ni-Zn ferrites " pdf

Ngày tải lên : 22/03/2014, 11:20

... study the spin order and magnetic behavior of samples, the field-cooled (FC) and zero field-cooled (ZFC) magnetization measurements were performed in magnetic field of 20 Oe (Fig ) The FC and ZFC ... interaction and we suppose in our studied samples there is canting structure as illustrated in Fig 2, where ϕ is the angle between direction of magnetic moment of A ions and magnetic moment of B1 and ... for hours and then reground to the fine particles, pressed into pellets and again heated at 900ºC for hours The second reground powders were pressed and sintered at 1300ºC for hours The crystal...

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Báo cáo hóa học: " Effects of NiO nanoparticles on the magnetic properties and diffuse phase transition of BZT/NiO composites" potx

Ngày tải lên : 20/06/2014, 23:20

... contributions PJ carried out the experiments, analysis, and writing of the manuscript SE, KP, and TT participated in the conception and design of the study DPC and GR revised the manuscript for important ... the BZT93 powder and then milled for 24 h The ball-milled powders were pressed into a disk shape and then sintered at temperatures ranging from 1,250°C to 1,450°C for h The densities of all the ... formation of the composites Magnetic and ferroelectric properties Figure shows the M-H magnetic hysteresis loops of the samples measured at room temperature The vol.% sample exhibited a weak magnetic...

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Báo cáo y học: "Direct electrochemical analyses of human cytochromes b5 with a mutated heme pocket showed a good correlation between their midpoint and half wave potentials" doc

Ngày tải lên : 10/08/2014, 05:21

... and 1C) and, therefore, the distributions of acidic residues on the surface of the heme domain are also well conserved (Figure 1A and 1C) Therefore, the proposed scheme for the formation of the ... that the large variation in the halfwave potential might be ascribed to the difference in the dehydration around the heme moiety upon the complex formation with poly-L-lysine [29] On the other hand, ... suggested that both the binding of poly-L-lysine and the changes of the hydrophobicity around the heme moiety (both within the heme-pocket and the exposed heme edge) regulate the half- wave potential...

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Fundamental Types - Strings, Arrays, and Enums

Ngày tải lên : 05/10/2013, 07:20

... STRINGS, ARRAYS, AND ENUMS you use the more secure variants of the standard CRT functions While these are not yet part of the ANSI standard, they have been proposed as extensions to the standard ... to get at an object The address of the array is the address of the handle; it is not the same as the address of the first element of the array Element access for managed arrays is done using ... both native and managed arrays; that is, the first index is and the last is N – where N is the length of the array Initializing Native and managed arrays may be initialized when they are created...

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Tame and half-hearted war - intervention, reprisal and necessity

Ngày tải lên : 01/11/2013, 10:20

... revolutions and the like At other times, they occurred in the context of interstate conﬂicts Sometimes they had the consent of the government of the state in which they occurred, and sometimes ... interventions by the major powers, in various combinations, in the 1830s led to the independence of Belgium (from the Netherlands) and of Greece (from the Ottoman Empire) Interventions by the Concert ... combined to blockade the island to prevent the landing of Turkish troops, with the inevitable bloodshed that would have resulted.22 They then compelled Greece to evacuate the island, while also insisting...

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Tài liệu Module 7: Strings, Arrays, and Collections pdf

Ngày tải lên : 21/12/2013, 05:18

... called the capacity of the object and must not be confused with the length of the string that the current StringBuilder object holds Any attempt to expand the StringBuilder class beyond the maximum ... indicates whether the Array is read-only Length Gets the total number of elements in all of the dimensions of the Array Rank Gets the rank (number of dimensions) of the Array Note The IsFixedSize and ... 7: Strings, Arrays, and Collections Declaring an Array C# supports single-dimensional arrays and multidimensional arrays, which are also know as rectangular arrays, and jagged arrays The following...

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báo cáo hóa học: " The investigation of frequency response for the magnetic nanoparticulate assembly induced by time-varied magnetic field" ppt

Ngày tải lên : 21/06/2014, 02:20

... alternating magnetic field may be essentially dependent upon the magnetic size rather than the physical size The work may deepen the knowledge of field-mediated colloidal assembly and widen the technological ... into the mixture of Fe2+ and Fe3+ (molar ratio is 1:2) until the pH reached 13 Then, the reaction continued for h to obtain the black colloidal particles (Fe 3O4) Then, the air was pumped into the ... JS and NG initiated the idea JS carried out the experiments, explained the mechanism, and wrote the manuscript YS carried out the FMR measurements CW synthesized both materials NG constructed the...

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