Historical analysis. In current (2G-4G) networks the main actors are the (mobile) network operators, subscribers (i.e. users) with some User Equipment (UE) and interconnection providers (see Figure 7). At this level a formal domain model can be found in 3GPP TS 23.101 [3GPP 2015] which is reproduced below. Home Network Domain Cu Uu Iu [Zu] [Yu] Serving Network Domain Transit Network Domain USIM Domain Mobile Equipment Domain Access Network Domain Core Network Domain User Equipment Domain Infrastructure Domain Figure 8. 3GPP TS 23.101 domain model. The domains of TS 23.101 are therein defined as “highest level of physical grouping" and the partitioning of the network into domains is thus, as such, not trust driven. However, one can already note here that the fact that home, serving and transit domains are separated even though they technically contain similar functionality (and may reside in more or less the same geographical area), implies that the domain boundaries are not purely physical but also related to business boundaries. This is a consequence of physical and business boundaries determining who has control over assets which is a major factor in trust issues. Moreover, the presence of some of the domains is directly related to trust. First of all, the separation of the User Equipment domain into the USIM and Mobile Equipment domains is definitely driven by the assignment of critical functionality to the USIM (or more precisely the UICC). Since the USIM resides in a physical location where it can be subject to e.g. tampering it has become necessary to separate it from the rest of the Mobile Equipment (ME), simply because it would have been too costly to make the whole UE tamper resistant. Secondly, we can consider the access network domain. Originally, the separation of the access domain from the core network domain was motivated by the fact that it involves special type of equipment (radio base stations, etc) which have specific technical functionality that cannot be found anywhere else. In addition, the access domain is by necessity geographically distributed since it is the only way to provide coverage and mobility. However, at the time when 2G was defined, these properties did not seem to warrant any special treatment of the access domain from trust point of view. At the time, the threat of tampering with base stations or gaining access to the backhaul transport network was simply not considered realistic. In 2G networks, communication between the UE (in the user equ...
Historical analysis. Upon commencement of the service, the College Board will tag, analyze, and report on an historical electronic data file of student records provided by Client for up to three recent incoming classes (prospects through matriculants). Cluster codes (each two-character, numeric) representing educational neighborhoods and high school clusters will be appended by the College Board to student records that contain required data elements: a deliverable home address and a valid United States high school code. In addition, the College Board will provide supplementary file of records appended with descriptive indicators (“Supplemental Factor Score File”). Client can utilize Educational Neighborhood and High School Cluster tags as criterion when purchasing names, and receive Educational Neighborhood and High School Cluster tags with the output on all domestic names purchased when clusters are used as criterion. Client may tag an unlimited number of files and will receive individual cluster factor scores with all output files. The College Board will provide Client with annual historical tagging in each subsequent year of this Agreement. The initial historical analysis and subsequent annual historical tagging reports will be made available to Client on the College Board Search website.
Historical analysis. Upon commencement of the service, the College Board will tag, analyze, and report on an historical electronic data file of student records provided by Client for the most recent incoming class (prospects through matriculants). Cluster codes (each two-character, numeric) representing educational neighborhoods and high school clusters will be appended by the College Board to student records that contain required data elements: a deliverable home address and a valid United States high school code. This report will be made available to Client on the College Board Search website.
Historical analysis. The consultant will review historical data of erosion rates in the watershed and sedimentation at Laguna Grande and Xxxxxxx Lake. This includes a review of the effect of dredging projects at the lakes and any other information of the sediment loading and changes in the rate of loading from the watershed. As part of this review, past City of Seaside officials and others who may have been involved with managing the lakes will be interviewed and documentation sought about past management efforts.
Historical analysis. Colorado has analyzed how the Tamarack Plan would have operated during the period 1943-1994. For the purpose of this historic analysis, periods and amounts of excess flows for diversion by the Tamarack Plan to recharge facilities in Colorado were assumed to occur when the following two conditions were satisfied: (1) South Platte River Compact requirements were satisfied and (2) flows exceeded the Fish and Wildlife Service (AFWS@) year round target flows at the Grand Island gage on the Platte River in Nebraska. Existing target flows for every month were used in this analysis and the monthly target values varied with hydrologic conditions of wet, average, and dry. This analysis assumed that pumping of new groundwater xxxxx located next to the river to recharge basins could occur during the winter because xxxxx can operate during freezing periods due to warmer groundwater temperatures. This analysis also assumed pumping to recharge basins that reflects potential operations at the 10,000 acre Colorado Division of Wildlife=s Tamarack Ranch State Wildlife Area. Colorado plans to install approximately twenty new large capacity xxxxx and associated pipelines and construct necessary recharge basins and related monitoring features. The SDF values of the new recharge basins which the xxxxx pump into will vary from 60 days to 270 days. For the 1943-1994 study period, the average annual diversion by the xxxxx for recharge in the Tamarack Plan would have been 22,950 acre-feet. Recharge from canal systems is accomplished during periods when there is unused canal capacity. These periods occur in the fall after the irrigation season until freeze-up, typically through the month of November, and during spring runoff when there are excess river flows. The average annual diversion for the 1943-1994 study period by canals for recharge in the Tamarack Plan Project would have been 6,690 acre-feet for a total of 29,640 acre-feet by both xxxxx and canals. Tables 1 and 2 list the reregulation results of the Tamarack Plan operations for this historical analysis of the 1943-1994 period. Table 1 lists the monthly additions or increases that would have occurred to the historic Julesburg gage flows as a result of the accretions or return flows to the river caused by the groundwater recharge of the Tamarack Plan. These are net values and occurred for months when river accretions exceeded the diversions to the recharge basins. Table 2 lists the monthly net depletions which would have occur...
Historical analysis. College Board will tag, analyze, and report on an historical electronic data file of student records provided by You for up to three recent incoming classes (prospects through matriculants). You will provide to College Board the street address, zip code, high school code, and as applicable student status and entry of students in the appropriate format specified by College Board.
