and triple band antenna elements
QUAD POLARIZATION WIDEBAND SINUOUS ANTENNA ELEMENTS AND ARRAYS
Ngày tải lên :
30/09/2015, 10:12
... operate across all these bands (i.e a broadband antenna) and thus simplify the realization of these electronics systems Broadband antennas can be described as those antennas which satisfy given ... Recommendations and research directions are proposed for consideration in future developments of broadband, multiple polarization antenna elements and arrays Chapter Review of broadband antennas An antenna ... the options for broadband antenna elements and also general techniques for increasing bandwidth in antennas A short comparison of the popular options is made before sinuous elements are chosen...
- 139
- 752
- 0
Linear Minimum Mean-Square-Error Transceiver Design for Amplify-and-Forward Multiple Antenna Relaying Systems
Ngày tải lên :
20/11/2012, 11:31
... amplify -and- forward (AF) cooperative communication system is considered In the considered system, there is one source with NS antennas, one relay with MR receive antennas and NR transmit antennas, and ... LTE, IMT-Advanced and Winner project [3, 4] Generally speaking, there are three kinds of cooperative protocols: amplify-andforward (AF), decode -and- forward (DF) and compress -and- forward (CF) For ... where the elements of the MR × NS matrix HW,sr are independent and identically distributed (i.i.d.) Gaussian random variables with zero mean and unit variance The MR × MR matrix Σsr and NS × NS...
- 130
- 407
- 0
Tài liệu Báo cáo khoa học: Mutational analysis of plasminogen activator inhibitor-1 Interactions of a-helix F and its neighbouring structural elements regulates the activity and the rate of latency transition pdf
Ngày tải lên :
20/02/2014, 11:20
... 100 and 128 are highly conserved among serpins (F119 and F147, respectively, in a1PI) [2] and buried in the hydrophobic interface between hF and b-sheet A (Fig 5) The substrate behaviour and ... lgÆmL)1 ampicillin and 34 lgÆmL)1 chloramphenicol and incubated overnight at room temperature The cultures were diluted : 20 and incubated at 37 °C until a D600 between 0.7 and 0.9 A final concentration ... Na2HPO4) and opened with sonication The bacterial lysates were cleared by centrifugation (15 000 g, 30 min) and filtration (0.22 lm), supplemented with M NaCl, 10 mM imidazole and 5% glycerol, and...
- 9
- 605
- 0
Báo cáo " Study, Design and Manufacture Microstrip Antenna For Advance Mobile Handsets " potx
Ngày tải lên :
05/03/2014, 11:21
... modes are excited at 910 and 1900 MHz simultaneously with good impedance matching The 10-dB return-loss bandwidth at the lower frequency is 52 MHz (882 - 934 MHz) And the bandwidth at the upper ... of the lower and upper modes of the proposed antenna cover the required bandwidths of the GSM/UMTS systems The proposed antenna is especially suited for application in 3G mobile handsets Fig Comparison ... resonant mode shown an impedance bandwidth of 45 MHz (877 ~ 922), which covers most of required bandwidth of the GSM system For the upper resonant mode, it has an impedance bandwidth of 362 MHz (1760...
- 5
- 406
- 0
Concentration and distribution of extractable elements in soil as affected by tillage systems and fertil
Ngày tải lên :
15/03/2014, 23:22
... general and for some elements they are around the detection limit For some trace elements ŽCo, Pb and Zn the extractable concentration and stratification was linked to OM and pH For other elements ... These elements are absorbed by plants and some are contaminants, which might become a risk for the environment and health Among these elements Cd, Cr, Ni, Pb and the micronutrients Cu and Zn ... CT, with slightly higher pH values and lower OM and Al Only the higher contents of Co, Pb and Zn in top soil under ZT were related to higher OM and Al contents and lower pH in those soils The comparison...
- 7
- 380
- 0
Family Life, Reproductive Health, and Population Education: Key Elements of a Health-Promoting School docx
Ngày tải lên :
22/03/2014, 12:20
... Accurate and up-to-date data can help ensure that efforts focus on the health and developmental needs of the target population Concerns and perceptions vary by age and gender and by demographic and ... population and environment, population and resources, population and economic development, and population and socio cultural factors (UNFPA, 1996) (K) • show concern about implications and consequences ... girls and boys that are respectful, non-discriminatory, and non-abusive Instances of discrimination, double standards, harassment, and violence or abuse between students and between staff and students...
- 90
- 469
- 0
Báo cáo hóa học: " HBVRegDB: Annotation, comparison, detection and visualization of regulatory elements in hepatitis B virus sequences" potx
Ngày tải lên :
20/06/2014, 01:20
... sequence and structure This directs processes such as transcription, reverse transcription, replication, nuclear import and export and coding [1-7] Regulatory elements control this at the DNA, RNA and ... separately described using the standard numbering [32] Annotated DNA elements Two Direct Repeat DNA primer-binding sites – DR1 and DR2 – are involved in replication and may be preferential sites ... Promoters – preC/C promoter and TATA box [33], S1 promoter, S2 promoter, X promoter Transcriptional regulatory elements – NREα, NREβ and NREγ (reviewed in [4] Enhancers – Enh I and Enh II, which modulate...
- 10
- 461
- 0
Báo cáo hóa học: " Research Article Study of Harmonics-to-Noise Ratio and Critical-Band Energy Spectrum of Speech as Acoustic Indicators of Laryngeal and Voice Pathology" ppt
Ngày tải lên :
22/06/2014, 23:20
... closure of the glottis and improper vibration pattern of the vocal folds We have used energy spectra at critical-bands because the center frequency and bandwidths of the critical-bands roughly correspond ... frequencies and bandwidths are taken according to criticalband spacing These 21-bands cover a frequency range of to 7.7 KHz Energies of each of the 21-filter outputs are computed and normalized ... Upper-edge frequencies, lower-edge frequencies, center frequencies, and bandwidths for 21-channel filter-bank with critical -band spacing Band 10 11 12 13 14 15 16 17 18 19 20 21 Lower-edge frequency...
- 9
- 275
- 0
Báo cáo khoa học: "Predicting oak wood properties using X-ray inspection: representation, homogenisation and localisation. Part I: Digital X-ray imaging and representation by finite elements" ppsx
Ngày tải lên :
08/08/2014, 14:21
... better understanding of its shrinkage and mechanical properties Accordingly, several experimental and computer tools were developed to observe the anatomical structure of oak wood and to translate ... vessels, ray cells, fibre zones and parenchyma zones) At this step, the heterogeneous material is defined and a complete procedure X-ray imaging and representation by finite elements 336 degrees of freedom ... observed and qualitatively characterised [7, 8, 15, 17, 21] In homogenisation problems, the definition and description of the elementary representative volume is a key step The methodology and the...
- 10
- 199
- 0
Báo cáo y học: " 3′-coterminal subgenomic RNAs and putative cis-acting elements of Grapevine leafroll-associated virus 3 reveals ‘unique’ features of gene expression strategy in the genus Ampelovirus" potx
Ngày tải lên :
12/08/2014, 04:20
... (ORF 8) and CP (ORF 6) genes The two sgRNAs for p4 (ORF11) and p7 (ORF12) were not resolved due to the small differences in their sizes and appeared as a single moderately expressed band in Northern ... bands were putatively identified as sgRNAs corresponding to CPm (ORF 7), p55 (ORF 5) and p5 +HSP70 h (ORFs and 4) genes The specificity of the abundantly-accumulated sgRNAs to CP, p21, p20A and ... Table S5 and Table S6 T7 and SP6 polymerase promoter sequences were included in the forward and reverse primers, respectively, and the PCR amplified products were agarose-gel eluted and used...
- 14
- 353
- 0
Báo cáo y học: " Restriction by APOBEC3 proteins of endogenous retroviruses with an extracellular life cycle: ex vivo effects and in vivo "traces" on the murine IAPE and human HERV-K elements" pot
Ngày tải lên :
13/08/2014, 05:21
... genomic IAPE elements, originating from two different subfamilies, namely IAPE-A and IAPE-D, and on fulllength HERV-K elements Both the murine IAPE-D subfamily and the human HERV-K elements have ... on bona fide exogenous retroviruses on the one hand and intracellular retroelements on the other Results and discussion Restriction of murine and human infectious ERVs by APOBEC3 proteins To ... Traces of APOBEC3 past activity on resident IAPE and HERV-K elements in the murine and human genome Since the murine IAPE-D and the human HERV-K elements are found to be restricted by APOBEC3 proteins...
- 11
- 277
- 0
Báo cáo y học: " RTE and CTE mRNA export elements synergistically increase expression of unstable, Rev-dependent HIV and SIV mRNAs" ppsx
Ngày tải lên :
13/08/2014, 09:21
... experiments in using infectious HIV and SIV and provided technical assistance; ASZ and CM provided reagents and intellectual input; GNP provided intellectual input and contributed to 13 14 Grüter ... contains the major splice donor of HIV-1 located 5' to gag and a cryptic splice acceptor between RNA export elements and the 3'LTR and expresses HIV-1 gag [23, 24, 39] The RTE structure [7] shows ... within env and is expressed from the HIV-1 LTR promoter RTE, CTE and RTEm26-CTE were inserted between the env gene and the 3' LTR B) HLtat cells were transfected with the indicated plasmids and analyzed...
- 9
- 265
- 0
Báo cáo y học: " The relationship between hip abductor muscle strength and iliotibial band tightness in individuals with low back pain" potx
Ngày tải lên :
13/08/2014, 14:20
... hip and knee joints The examiner, standing behind the subject, with one hand, stabilized the pelvis and passively abducted and extended the upper leg with the knee flexed with the other hand ... iliotibial band syndrome Clin J Sport Med 2000, 10:169-175 18 MacMahon JM, Chaudhari AM, Andriacchi TP: Biomechanical injury predictors for marathon runners: striding towards iliotibial band syndrome ... reviewed and was approved by the Human Subject Committee at University of Social Welfare and Rehabilitation Sciences Arab and Nourbakhsh Chiropractic & Osteopathy 2010, 18:1 http://www.chiroandosteo.com/content/18/1/1...
- 5
- 375
- 0
Báo cáo y học: "Large-scale discovery and validation of functional elements in the human genome" ppt
Ngày tải lên :
14/08/2014, 14:21
... functional elements in genomes are producing huge numbers of candidate regions High-throughput assays in human cells and model organisms for validating and functionally characterizing these candidates ... candidate elements tended to reside near genes that act as developmental regulators, and were not found in invertebrate genomes Zebrafish embryos were used to test a subset of the conserved elements ... functional elements Given the huge numbers of candidates, however, alternative approaches are also needed A particularly promising technique for validating, characterizing and prioritizing candidate...
- 2
- 238
- 0
banking principles and practice volume 1 elements of money, credit, and banking
Ngày tải lên :
05/11/2014, 10:52
... malleable and recognizable when stamped; it must be uniform in composition and quality; and it must be durable and able to resist wear and tear To serve as a standard for deferred payments and as ... Rates and Exchange Rates Bank of England Rate on Discount Rates The Control of Gold Movements The Gold Standard and the Gold Exchange Standard Effect of Gold-Silver Exchanges The Gold Exchange Standard ... and the Commercial Paper Rate of Interest Collection and Computation of The XLIV The Loan Department—Other Interest Loans 863 Merchandise Loans and Commodity Paper Legal Protection of Merchandise...
- 246
- 278
- 0
10 ielts speaking tests and sample and answer band 7
Ngày tải lên :
13/04/2015, 08:43
... SPEAKING TEST BAND – cu n đ u tiên c a Series IELTS SPEAKING band 7, band band 9, b sách không dùng cho m c đích thương m i hoàn toàn FREE cu n đ u tiên c a Series, 10 IELTS SPEAKING TEST BAND g m ... all these stories and all these composers and songwriters, and writers in general And she played us some music and she read poems for us, and we watched films and we discussed And I think it was ... live in the square and in the same area with lots of other people, older and younger than us And uh hobbies generally for the young boys umm are sport and socialising and dancing And same for the...
- 45
- 1.5K
- 11
Identifying and characterizing cis regulatory elements in the human genome
Ngày tải lên :
14/09/2015, 14:08
... microinjections and mouse husbandry; i The members of IMCB Histopathology Unit, especially Keith Rogers and Susan Rogers for histology tips, protocols and equipment; The staff of A*STAR Graduate Academy and ... noncoding elements, including cis-regulatory elements, origins of replication, recombination elements and structural sites of telomeres and centromeres (Cereghini et al 1984; Gross and Garrard ... The difference is that there is no cleavage step, and hence a single DNA band is observed after gel electrophoresis as opposed to a series of bands as in DNA footprinting DNA molecules to which...
- 200
- 252
- 0
Compact dual mode triple band bandpass filters
Ngày tải lên :
22/09/2016, 00:23
... Q.-X Chu and X.-M Lin, “Advanced triple- band bandpass filter using tri-section SIR,” Electron Lett., vol 44, no 4, pp 295–296, Feb 2008 [9] F.-C Chen, Q.-X Chu, and Z.-H Tu, “Tri -band bandpass ... “Couplingmatrix design of dual and triple passband filters,” IEEE Trans Microw Theory Tech., vol 54, no 11, pp 3940–3946, Nov 2006 [14] X.-P Chen, K Wu, and Z.-L Li, “Dual -band and triple- band substrate integrated ... perturbation structures IV TWO TRIPLE- BAND FILTERS: DESIGN AND RESULTS Based on the detailed discussion in Sections II and III, two triple- band microstrip-ring-resonator bandpass filters can be constructed...
- 8
- 300
- 0
SAP2000 Integrated Finite Elements Analysis and Design of Structures
Ngày tải lên :
06/09/2012, 15:56
... frame elements and shell elements All second level joints, frame elements and shell elements All column elements All moment frame columns All braced frame columns All braces between the first and ... frame elements and joints in the X-Y Plane @ Z=24 by “windowing.” To this: • Click the Pointer button • Move the pointer above and to the left of the frame elements and joints • Click and hold ... select all elements to relabel You could select only a few elements, of any type, and relabel only the selected elements Click the Set Elements button on the main toolbar (or select Set Elements ...
- 127
- 1.5K
- 2
