traffic of a single user is 0.02Erl in a dense area, the videophone traffic is 0.001Erl, and the average traffic of a single user in a data service is 1 kbps. If you use the KR algorithm to estimate the capacity according to the O3 configuration of a single residential area and consider the 75% load, the student capacity of each dormitory building in the campus is 716, which can meet the needs of users in a single dormitory building.
2. Distributed S
network equipment need to be expanded, try to use the user board allocation method.
In addition, different device solutions should be used in different scenarios. For small and medium-sized enterprise users, new residential areas and rural areas, comprehensive access devices can be used to provide both broadband and voice access for users. The Softswitch AG device is mainly used to connect users with Softswitch voice and switch Switches of the existi
wireless technology to achieve greater gain than to use a single antenna.
In the development of mobile communication, in order to expand the system capacity and support more users, it is necessary to contract the residential area range and reduce the frequency reuse coefficient to improve the frequency utilization. The common method is to split the residential area and divide the fan area, followed by an i
In recent years, the trend of Industrial centralization has spawned a large number of parks, such as science parks and industrial parks. In addition, residential areas, shopping malls, schools, and so on are actually a park. People work, live, learn, and entertain in the park. As a necessary ancillary facility in the park, the communication network has gradually become an important standard for measuring the quality of the park. A fully functional, se
In the last two years, with the rapid development of the mobile Internet, the original 3G network has been unable to meet the increasing business needs in terms of speed and capacity. All major operators have begun to prepare for the construction of 4G networks, in order to seize the lead in the new round of network construction. The State Council Executive Meeting recently explicitly stated that 4G licenses will be officially issued during the year, marking the official blow of China's 4G netwo
1053. Housing vacancy rate (20) time limit: Ms Memory limit 65536 KB code length limit 8000 B procedure StandardAuthor Chen, YueUnder the premise of not disturbing the residents, one method of statistic housing vacancy rate is based on the continuous change rule of each household electricity consumption. The judging method is as follows:
During the observation period, if there is more than half of the days of electricity consumption than a given threshold E, then the housing is "likely
to as the name implies. The transmission of electric energy has different voltage levels, in which 220-750kv is an ultra-high voltage power grid, which forms the backbone of the large area power grid and the contact line of the large area power grid. The 110-220kv is a transmission network, which forms a complex power grid that transmits electrical energy in various regions. The 35-110kv is a power supply network that is fed from a hub substation to a local substation near the load zone. 10KV i
conversation begins with a metaphor.
A village, Lao Wang's first family lived in the courtyard for decades mdash;mdash; furniture is old furniture, draught has a well, cooking has a big stove, the days have been inverted also paste run. Say this day the village has built a modern residential building, all kinds of hardware conditions will be good, water and electricity is more convenient. To what type, hardcover or lite, can choose
In recent years, with the rapid rise of real estate industry, decoration and decoration industry has also developed rapidly in recent years. Many owners choose to decorate the company, in addition to look at the decoration of the company's general situation, but also look at the quality of service decoration company. Xi ' An decoration company has a lot of, then, everyone to Xi ' an decoration company's service quality situation know how much? Today, cloud-wheat Decoration (www.iyunmaizs.com) fo
[Autohome with car] with the increasing number of motor vehicles, parking has become a lot of people have a headache. Some new community planning relatively reasonable parking lots Fortunately, many old community parking spaces are really a "bit" difficult to find. I believe that we often see a variety of vehicles in the residential area of the jianfengchazhen disorder of all kinds of cars on both sides of the road parking, which not only affect other
elevator, in the traffic in the streets, may also spend one or two hours a day from home to the unit.In a sense, urban people are generally refined, polished, courteous, which is also urbane(from the Latin word urbs, City 's meaning) told us. The noun is urbanity.Urban as an adjective refers to the city, such as urban affair, urban areas, urban populations, urban life, urban development and so on.Plus the prefix,sub-, near the meaning,suburban, near the city. sub- also have under, near, close t
: Defining area such as buildings, embankments, etc.c) Boundary: door-mounted to define administrative boundariesd) Restrictions: used to describe restrictions such as "non-left"2.4. TagTags are not the basic elements of a map, but each element uses tag to record data information. Record the data with ' key ' and a ' value ' (Should you understand the XML or database?) )。 For example, you candefine a residential road by highway =
Software Environment: GeoServer 2.1.0UDig 1.2.1Shapfile file structure: FID feature name change map spot Category room interpretationTest. 33658 Test address 1 hcac-jk-10-76 residential structure addedTest. 33598 Test Address 2 hcac-jk-45-79 residential structure addedOne, Udig open shapfile file(1) Layer--->add------>add Data: such as:(2) Select the Shapfile file containing the Chinese text field:Ii. to ge
; e = 20 20; enddatainit :! Here the initial values x and y are assigned x = 5 2; y = 1 7; endinit [obj] min = @ sum (link (I, j): c (I, j) * @ sqrt (a (I)-x (j) ^ 2 + (B (I)-y (j) ^ 2 ));! Target function; @ for (demand (I): @ sum (supply (j): c (I, j) = d (I); @ for (supply (j): @ sum (demand (I): c (I, j)
7. site selection problems
There are 12 major residential areas on an island. The following table lists the locations of each
This article mainly introduces how to use dropdownlist in Yii2 to implement regional three-level linkage function. combined with the instance form, it analyzes in detail the specific steps and precautions for implementing three-level linkage call in the dropdownlist drop-down list, for more information about how to use dropdownlist in Yii2, see the following example. We will share this with you for your reference. The details are as follows:
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The default implementation methods of radio and checkbox are available. you can refer to the principle below to understand this principle, regardless of asp, asp.net, and jsp.
This is the default implementation method to extend the select of yibing.
The code is as follows:
Value = "1"> residential Value = "2"> office Value = "3"> Business Office Value = "4"> factory Value = "5"> repository Value = "6"> block Value = "7"> comprehensive building Valu
,selectmany,first, and so on are high-level functions, so when do we use this design when we write our own code?
Example: Design a function for calculating the cost of a property, Var fee=square*price, and the area (square) is calculated differently depending on the nature of the property. For residential, commercial housing and so on need to multiply the different coefficients, according to this demand we try to design the following function:
ensure that more than 90% of the residential area coverage, to meet the requirements of C/I not less than 9dB ~ 4. GPRS Channel (PDCH). At least one static group data service channel is set at the initial stage of GPRS wireless channel allocation, and PDCH allocation will be adjusted based on GPRS traffic, dynamic Channels are preferentially allocated to voice channels to ensure GSM quality. Therefore, the GPRS bandwidth is 13.4Kbps ~ 54.4Kbps 。
On C
In addition to ADSL dial-up Internet access, residential broadband Internet access is also a common Internet access method. If you use residential broadband Internet access, do you think the router is just an Internet access tool? Otherwise, you can take advantage of your vro to prevent hacker attacks. Let's take a look at it.
Objective: To restrict external computers from connecting to ports such as 192.16
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