workflow development in sharepoint 2013
umts signaling willaey
Ngày tải lên :
27/10/2014, 01:04
... corresponding interface towards the PS domain IuCS (Circuit Switched), corresponding interface towards the CS domain The Iu interface supports the following functions: Establishing, maintaining, and ... Call-Conferencing o Group Management Setting up and maintaining user groups Supporting service for other services (Multiparty conferencing, Push-to-talk) o Messaging SIP-based messaging Instant messaging ... Downlink Packet Access (HSDPA), which is a feature clearly defined in Release in combination with a Release 99 radio access network In addition it must be kept in mind that due to changing needs...
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ETSI WIDEBAND CDMA STANDARD FOR THE UTRA FDD AIR INTERFACE.pdf
Ngày tải lên :
04/08/2012, 14:24
... developing the mobile telecommunications system including the air interface and infrastructure The main requirements of the IMT-2000 air interface are: full coverage and mobility at 144 kbps in a ... (downlink) QPSK (uplink) Data modulation QPSK (downlink) BPSK (uplink) Coherent detection User-dedicated time-multiplexed pilot (uplink and downlink), Common pilot can also be used in downlink Multirate ... -spreading and multicode Spreading factor (ratio of chip – 256 (4.096 Mcps) rate over information rate) Channel coding Convolutional coding (R = 1/3 or 1/2, K = 9), Turbo code Spreading Spreading...
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The Air-Interface of GSM
Ngày tải lên :
19/10/2013, 03:20
... within the BTS The Glossary provides an example of a BCCH/SYS_INFO 1C SYStem BTS ¡ MS INFOrmation SYS_INFO only repeats information of data already sent in the SYS_INFOs - 1D SYStem BTS ¡ MS INFOrmation ... according number of IMSIs/TMSIs are contained in a PAG_REQ Note that the IMSI is not contained in the PAG_REQ if a TMSI is assigned, even though the PAGING message on the A-interface contains both ... 7.11, is separated into the TI flag and the TI value The TI flag (bit 7) is used to distinguish between the initiating side and the responding side of a transaction For the initiating side, the TI...
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lte for 4g mobile broadband air interface technologies and performance
Ngày tải lên :
06/05/2014, 10:20
... contention-free interleaver; Scheduling, link adaptation, hybrid ARQ and power control; Uplink and downlink physical control signaling; Inter-cell interference mitigation techniques; Single-frequency ... eNBs in the MBSFN area as well as determining the radio configuration including the modulation and coding scheme The MBMS GW is also a logical entity whose main function is sending/broadcasting ... the SINR in an OFDM system degrades with increasing f In general, f is larger for cell-edge users experiencing high interference from neighboring cells and lower for cell-center users receiving...
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Performance study of air interface for broadband wireless packet access
Ngày tải lên :
12/09/2015, 08:18
... within an individual block windowing The descrambling and despreading are implemented block by block by multiplying the product of the respective spreading code and cell-specific scrambling code ... duplex (TDD) system In contrast with FDD, in which a pair of frequency bands is used for downlink and uplink separately, TDD uses a single frequency band for both downlink and uplink in different time ... of the first 4G field tests in the world in October 2002 Data rates of 100 Mbps in downlink and 20 Mbps in uplink were achieved In more recent field tests conducted in 2004 a maximum downstream...
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Gas transfer at the air-water interface in a turbulent flow environment pdf
Ngày tải lên :
29/03/2014, 18:20
... wind shear-induced turbulence (see Section 2.3) The wind shear is indeed the dominant driving mechanism for gas transfer in oceans, rivers and lakes with strong wind speeds (3-8 m/s see MacIntyre ... occurring in windless rivers, in open channel flows, in stirred grids mixing tanks) and buoyant-convective tur- 1.2 Scope and Objective bulence (e.g turbulence in lakes due to surface cooling) ... and their interaction is given in Figure 1.1 A) Convectiveinduced turbulence Evaporation Air Water thermal / salinity convective cells Int era B) Wind-shearinduced turbulence n tio ac er Int n C)...
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Báo cáo hóa học: "Mechanical tuning of molecular machines for nucleotide recognition at the air-water interface" pot
Ngày tải lên :
21/06/2014, 04:20
... pressure range An apparent advantage in the Li+-containing system is due to a significant increase in the binding constant of CMP As seen in Figure 3B, binding of CMP to the monolayer of does ... 4B) Although the binding constants of UMP to the monolayer exhibit a distinct dependence on surface pressure, an order of binding constant (K(CMP) >K (GMP) >K (AMP)) is maintained over the entire ... gave the best fitting of the binding curves As shown in Figure 4A, the binding constants of the nucleotides to the monolayer of gradually decreased as the surface pressure increased This is because...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_1 pot
Ngày tải lên :
21/06/2014, 22:20
... turning along the taper, the cutting speed will proportionally increase with increasing taper diameter – this also being in proportion to the cutting time By originally establishing the cutting ... ‘Taper-turning test’ In this case, the increase in cutting speed is obtained by turning a parallel testpiece axially, whilst simultaneously increasing the cutting speed as the tool traverses longitudinally ... 277 ID – these machined surfaces both being produced in a ‘one-hit machining’ operation – then inspected by a suitable roundness testing machine The main advantage of using industrial-based (PPT)...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_2 docx
Ngày tải lên :
21/06/2014, 22:20
... exploiting the minimum machining time and data-gathering activities to gain the maximum information, will be the strategic message for the following dialogue Machinability Strategies: Minimising ... Strategies: Minimising Machining Time, Maximising Data-Gathering Prior to commencing any form of machinability trials, parameters for cutting data need to be ascertained in order to minimise any likelihood ... Machinability and Surface Integrity 279 Figure 147. Machinability testing utilising an ‘accelerated testing procedure’ – a combination of the rapid facing and degraded tool...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_4 pot
Ngày tải lên :
21/06/2014, 22:20
... workpiece and the cutting insert, all of the various factors of a machining system: machine tool; spindle; tooling; workpiece; workholding – in varying degrees, can influence chatter To increase process ... Kosher, 2003] Machinability and Surface Integrity either entirely eliminating it, or at the very least, min imising its affect on the overall machining process Chatter during machining can result ... successfully used for many industrial applications, such as those involving: High-speed; Thin-chip, hardened-die machining; multi-point cutting operations – milling, etc.; Turning and boring operations These...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_5 pdf
Ngày tải lên :
21/06/2014, 22:20
... ‘mapping’ and correlating machined surface topographies Spacing parameters (Rsm, Wsm, Psm) – can be defined as: ‘The mean spacing between profile peaks at the mean line, measured within the sampling ... unlike mountainous terrain 7.5.1 Parameters for Machined Surface Evaluation In order that a machined workpiece’s surface texture can be determined using stylus-based (two-dimensional) instrumentation, ... instances, ‘surface engineering’ 48 is utilised to enhance specific component in- service condition It was mentioned above that in many in- service engineering applications the accompanying surface texture...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_7 ppt
Ngày tải lên :
21/06/2014, 22:20
... cutting insert surface conditions, clearly illustrating that even when ‘super-finishing’ 62 an insert’s face it still has asperities present 7.7.1 Tool Wear Introduction On a single-point turning ... pores can introduce negative skewness – creating a potential ‘intermediate group’ to the manufacturing process envelope groupings 7.5.4 Ternary Manufacturing Envelopes (TME’s) In machining operations ... instant along the three graph’s axes 7.6 Machining Temperatures Ever since Taylor in 1907, recognised that elevated tool and workpiece temperatures in metal cutting played a crucial role in influencing...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_8 doc
Ngày tải lên :
21/06/2014, 22:20
... even result in insert fracture • The former conditions are in the main, confined • • to continuous cutting and steady-state machining conditions, albeit with single-point cutting inserts The ... restricted to intermittent cutting multi-point machining, or interrupted cutting operations: Thermal cracking – is usually the result of fatigue wear, produced by thermal cycling machining conditions, ... and modern insert grades and coatings, minimise this BUE effect If BUE does occur, it can create a poor surface finish on the machined surface In any BUE machining condition, if it continues without...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_9 docx
Ngày tải lên :
21/06/2014, 22:20
... articial intelligence (AI) – more will said relating to cutting tool monitoring and analysis in a succeeding chapter Many of the early attempts at cutting force monitoring were by using several ... used for: milling, drilling and turning experimental data-gathering and analysis [Courtesy of Kistler Instrumente AG] Machinability and Surface Integrity not possible to index the turning centre’s ... production operation; machine tool; machining cell; etc.: Machinability and Surface Integrity 343 Figure 177. The correlation of typical manufacturing cost factors: machining costs, together with...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_10 ppt
Ngày tải lên :
21/06/2014, 22:20
... of single- and multi-point cutting tools (e.g turning, milling, drilling, broaching, sawing, etc.) Machining Simulation – Validation Not only can simulation techniques of the type shown in Fig ... Machining Modelling In Fig 183, just a few images of the Lagrangian FEA machining model are depicted for several applications of machining operations This simulation modelling technique contains ... proportions! defeating the object of reviewing cutting appliSubstituting for ‘σfmax’ in equation (xiii), produces: cations and trends in current practice However, the role of FEA, in both machining research...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_11 pot
Ngày tải lên :
21/06/2014, 22:20
... 7.10 Surface Integrity of Machined Components – Introduction fects when discussing the machined surface condition in the following section Previously in Section 7.5 concerning machined surface ... readings in the vicinity of this residual stress zone, then more indentations are possible using the Knoop, rather than the Vickers indentor, giving, more discrimination to the ‘foot-printing’ ... – by machining, the equibrium status is normally disturbed, resulting in potential component deformation This effect of machining distortion is well-known to practising industrial engineers, when,...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_12 pptx
Ngày tải lên :
21/06/2014, 22:20
... concerning the fact that machining processes impart residual stresses into the surface layers, as indicated in the schematically-represented milling conditions shown in Fig 190 and graphically, in ... references – for a more in- depth discriminating reading on these important machining and related issues Machinability and Surface Integrity 375 Figure 192. Roller burnishing improves the metallurgical ... Machinability and Surface Integrity Figure 189. The influence of the cutting edge’s condition on the resultant machined surface integrity 369 370 Chapter In Fig 189c, a ‘white-layer’...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_13 doc
Ngày tải lên :
21/06/2014, 22:20
... Estimating Uncertainties in Testing – Measurement Good Practice Guide NPL Pub No 36, March 2001 Bird, J Engineering Mathematics Newnes – Elsevier Science Pub., 2003 Boulger, F.W Machining – Theory ... Machinability American Soc of Metals (Ohio), 1975 Preliminary Study of Variations in Machinability of Carbon Steel PERA Pub No 179, April 1968 Kaczmarek, J Principles of Machining by Cutting, ... Cuttervelt, C.W Plastic Deformation in the Surface Layer after Cutting Advanced Manufacturing Engineering, Vol 1, 1989 Mills, B and Redford, A.H Machinability of Engineering Materials Applied Science...
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Báo cáo hóa học: " Drying nano particles solution on an oscillating tip at an air liquid interface: what we can learn, what we can do" pot
Ngày tải lên :
22/06/2014, 18:20
... the triple line is weakly pinned or not pinned at all When the triple line is pinned, at a constant evaporating flow, the thinning of the meniscus leads to a diverging liquid velocity inside the ... contact line of the meniscus Fig 10 A ring stain and a demonstration of the physical processes involved in production of such a stain production of such a stain The ring stain is obtained from ... line slides, the meniscus thickness remains large and the liquid speed inside the meniscus remains low Consequently the viscous damping must be much smaller with a sliding line than with a pinned...
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Data Integrity and Advanced Query Technique
Ngày tải lên :
25/08/2012, 09:00
... Thứ tự từ trái sang phải: Inner Join, Left Outer Join, Right Outer Join, Full Outer Join Inner Joins Dùng Inner Join để select data từ hay nhiều tables giá trị cột join phải xuất tables tức phần ... Foreign Key Constraint trường hợp: Insert hay Update: Nếu data insert vào vi phạm ràng buộc có sẵn (violate constraint) hay constraint ta muốn áp dụng cho data thời mà data insert Tiến hành trình ... lệnh Insert nhiều lần Một cách khác select data từ hay nhiều table insert vào table khác dùng "Insert Into Select " Nhưng câu lệnh không tạo table Nghĩa ta table phải tồn trước Ví dụ: INSERT INTO...
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