equipment e g high mounted radar and

... three-phase systems are convenient to use The three sources together supply three times the power that one source supplies, but they use three wires, while the one source alone uses two The wires ... transformers the magnetizing current I1,ex , does not exceed 1% of the current in the transformer Its effect therefore on the voltage drop on the leakage inductance and winding resistance is negligible ... power at different angles between voltage and current We call the power factor leading or lagging, depending on whether the current of the load leads or lags the voltage across it It is clear...

Ngày tải lên: 25/01/2014, 13:20

... receivers There are many types of radio receivers These include: • tuned radio frequency receivers (TRF) • superheterodyne receivers (superhets) • double superheterodyne receivers (double superhets) ... their many helpful comments High Frequency and Microwave Engineering has been written with a view to ease of understanding and to provide knowledge for any engineer who is interested in high ... varies according to the gain required from the aerial The length of directors and the spacing between them are also dependent on the number of elements used in the array In general, gain increases...

Ngày tải lên: 18/04/2014, 12:24

... 13.0 14.0 30 Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve Àve 7.4 10.5 11.0 ... gel 230–400 mesh (Merck) and silica gel 70–230 mesh (Merck) were used for flash and column chromatography, respectively, while precoated aluminium sheets silica gel 60 F254 nm (Merck) were used ... were determined on a Perkin–Elmer polarimeter One- and two-dimensional NMR spectra were recorded on a Bruker instrument equipped with a mm 1H and 13C NMR probe operating at 400 and 100 MHz, respectively,...

Ngày tải lên: 07/06/2016, 23:44

... resources are available at a new AP • 802.11r is designed to resolve these issues – In addition to security concerns regarding the handoff • 802.11r is expected to enhance the convergence of wireless ... achieves its increase in speed and flexibility over 802.11b through: – – – – A higher frequency band More transmission channels Its multiplexing technique A more efficient error-correction scheme ... Receiving device gets the signal from several different directions at different times • Must wait until all reflections are received • 802.11a solves this problems using OFDM • Orthogonal Frequency...

Ngày tải lên: 13/09/2012, 10:52

... believe that Stonehenge was built as some kind of time-keeping device Stonehenge is believed by many people to have been , built a some kind o time-keeping device s f a They made me te11 them everything ... stung by bees, she has no love ofinsects as the subject of a sentence: Being pruved wrong is never a comfortable experience Underliile the passives in these sentences i They are believed to have ... befitted were charged has been held has finally been elected is expected being caused to be pnnted is auctioned being considered a High- tech 'leg-irons' on violent suspects arrested by the...

Ngày tải lên: 05/10/2012, 09:58

... freezing the image, the measurements were made using electronic calipers The maximal thicknesses of the intima-media width were measured to give three readings and the mean value was used for statistical ... control group The children of MetS group had higher values of WC, SBP and TG, and lower HDL-C than these of obese group There was no sta- tistical difference in the age and sex among three groups (p ... children and adolescents, and this tendency is intensified in the presence of MetS Obesity especially abdominal obesity, high TG level and insulin resistance are strong predictors of increased IMT...

Ngày tải lên: 25/10/2012, 11:40

... Answers these questions: Are you hungry? Do you want to have some food and drinks? What would you like? New words: apple orange banana water rice milk meat vegetables Answer my question: ... like? an apple I would like …………… some meat I would like …………… Work in pairs Ask your partner what would he/she like? Group works: Ask each partner in your groups and copy down in this table: ... Names a What food would you like? b What drinks would you like? Lan Hoa … … Food Drinks Time to report • Tell what the friends in your groups would like, • Tell what you would like for breakfast...

Ngày tải lên: 02/06/2013, 01:26

... some oranges bananas milk some water rice meat Is there any milk? Yes There is some milk No There isn’t any milk Yes There are some apples Are there any apples ? No There aren’t any apples ... c) e) g) f) h) Rub out and remember Rub out and remember CHECKING an apple water rice an orange a banana meat milk fruit vegetables COUNTABLE NOUN apples An apple An orange A banana UNCOUNTABLE ... some fruit There are some oranges and some bananas Phuong : What’s there to drink ? Thu : There is some water Phuong : Is there any milk ? Thu : No There isn’t any milk CHECK THE GUESSING yes...

Ngày tải lên: 06/07/2013, 01:26

... laid a gold egg T T He cut open all the chicken to find more gold eggs T 5.There were some more gold eggs for the farmer ( There were no more eggs) F Choose the most suitable moral lesson: a) Don’t ... collect the eggs and discovered one of the chickens laid a gold egg He shouted excitedly to his wife, “We’re rich! We’re rich!” His wife ran to him and they both looked at the egg in amazement ... The wife wanted more, so her husband decided to cut open all the chickens and find more gold eggs Unfortunately, he couldn’t find any eggs When he finished all, the chickens were dead There were...

Ngày tải lên: 11/10/2013, 06:11

... rộng, cỡ chữ… GV: Hướng dẫn qui trình viết( Vừa nói vừa E Ê G thao tác ) HS: Tập viết vào bảng chữ.( Cả lớp ) b HD viết từ ngữ ứng dụnGV: (5 phút) GV: Quan sát, uốn nắn HS: Đọc vần từ ứng dụng ... chứa tiếng có vần uôn, uông - GV nêu yêu cầu SGK M: Bé đưa cho mẹ cuộn len - HS nêu mẫu: chuồn chuồn, buồng chuối Bé lắc chuông - HS nối tiếp nêu miệng - GV ghi bảng Tiết 3.Tìm hiểu nội dung ( 32 ... dậy sớm - HS+GV nhận xét, đánh giá II Dạy - GV giới thiệu tranh (SGK) ghi Giới thiệu (2,) tên lên bảng - GV đọc mẫu toàn 2.Luyện đọc: ( 30,) - HS theo dõi a Đọc mẫu - HS đọc đồng thanh, đọc...

Ngày tải lên: 17/10/2013, 21:15

... 96x15 minute increments, 7x24 hour increments for both HDSL and E1 performance Indefinite resettable alarm log showing first and last occurrence date and time, and number of occurrences for each alarm ... word DSL Alarms Thresholds (user settable): noise margin, loop attenuation, errored seconds E1 : G. 821 and G. 826 Performance Measurements: ES, SES, UAS, BBES, ESR, SESR, BBER E1 Alarms: LOS, LFA, ... type Alarm Relay: Form C relay contacts NO, NC and COM Loopbacks: local or remote towards customer or central office Test pattern: PRBS generator and BER meter from the customer premise or CO ends...

Ngày tải lên: 22/10/2013, 18:15

... use the book Chapter 2, "Determining Your High Availability Requirements" This chapter describes service level agreements and business requirements It provides guidelines for determining whether ... and external business dependencies This analysis is done using objective and subjective data gathered from interviews with knowledgeable and experienced personnel, reviewing business practice ... unavailable, and they not understand or care to differentiate between the complex components of an overall solution Performance failures due to higher than expected usage create the same havoc as the...

Ngày tải lên: 10/12/2013, 13:15

... cùỉt trông em Bao giúâ em khỗi trông Giậ ún dao trc, giậ lông ngûúâi thûúng Bao giúâ em khỗi chiïëu, khỗi giûúâng Àïí thiïëp vúái châng lưìng ấo àùỉp chung CDTCM 140 35 Em côn bế dẩi thú ngêy Thêìy ... chúå, côn khoe tûúi nưỵi g DCNTB I 139 21 Em cố chưìng, em tûúãng nghơa chưìng Nghơa qua em tûúãng mùån nưìng vâo àêu? DCNTB II 151 22 Em cố chưìng khưng bỗ nghơa anh Giâu thúâi miïỵu ngối, khố ... àa Phûúång hoâng chẫ thêëy, thêëy g bìn sao! DCTH 155 45 Em àang giậ g o giong àên Nghe tiïëng anh hất nhû kên thau ba Vưåi em bưëc g o Ài than thúã giao hôa cng anh DCTH 155 46 Em àang kếo vẫi...

Ngày tải lên: 13/12/2013, 07:15

... seven eight nine Ten eleven twelve thirteen Fourteen fifteen sixteen seventeen Eighteen nineteen twenty 33 Three sentences below are examples They all have the same number of stressed syllables, ... Some languages are syllable timed and others are stressed timed In syllabletimed languages, the syllables are the same length and the number of syllables determines the length of time required to ... students equate being able to speak a language as knowing the language and therefore view learning the language as learning how to speak the language, or as Nunan wrote, "success is measured in...

Ngày tải lên: 20/12/2013, 18:49

... teach on, what need reviewing, where they should stop longer to explain, to make it clearer 1.1.3 Progress or achievement tests These tests are designed to measure, learners language command and ... Marking Testing performance Assemble testing instrument Design and compile questions Select suitable questions Determine exactly testing contents Determine testing aims (From measurement and evaluation ... improve their English The difference in scores between two students is the difference between ones trained in multiple-choice questions techniques rather than their language knowledge and ability...

Ngày tải lên: 24/12/2013, 09:36

... WD920GN-1B-01 GS-2P E1 + eBridge Plug in card for EMS-830 CO chassis or ERE-811 remote enclosure WD921GN-1B-01 GS-2P E1 + Serial + eBridge Plug in card for EMS-830 CO chassis or ERE-811 remote enclosure ... WD924GL-XX-01 GS-2P LP eBridge Plug in card for EMS-830 CO chassis or ERE-811 remote enclosure WD920GL-1B-01 GS-2P LP E1 + eBridge Plug in card for EMS-830 CO chassis or ERE-811 remote enclosure ... errored seconds, loss of synch word DSL Alarms Thresholds (user settable): noise margin, loop attenuation, errored seconds E1 : G. 821 and G. 826 Performance Measurements: ES, SES, UAS, BBES, ESR, SESR,...

Ngày tải lên: 17/01/2014, 10:20

... Các bước Tên bước Mô tả bước Chậm 10 ngày kể từ nhận kết luận quan Bước tra việc phải thu hồi rừng, chủ rừng hộ gia đình, cá nhân nước, cộng đồng dân cư thôn g i kết luận đến quan có chức cấp huyện ... khu rừng cần thiết; trình uỷ ban nhân dân cấp định thu hồi rừng Uỷ ban nhân dân cấp huyện sau nhận tờ trình Bước quan có chức có trách nhiệm xem xét, ký g i định thu hồi rừng chủ rừng hộ gia đình, ... mẫu tờ khai Văn qui định Biểu thống kê đặc điểm khu rừng giao, cho Thông tư số 38/2007/TT- thuê, thu hồi rừng BNN ng Yêu cầu Yêu cầu điều kiện để thực TTHC: Không ...

Ngày tải lên: 26/01/2014, 10:20

... in the reverse signaling of the Eph/ephrin B system, that orchestrate the assemblage of Eph/ephrincontaining cells and tissues into defined functional aggregates and compartments Acknowledgements ... specific residues The measurement was performed at 15 °C and pH 6.8 Sequence specific resonances were achieved using triple-resonance NMR experiments with a 15N/13C-labeled Grb4 SH2 protein deduced from ... Three variants of the short peptide are generated to determine the binding specificity of the Grb4 SH2 in relation to the closest consensus binding sequence of the Src SH2 domain (i .e pYEEI) responded...

Ngày tải lên: 19/02/2014, 12:20