الاختيار الأمثل للخدمة الشاملة لتنويع الهندسة المعمارية.

Have You Ever Thought That Someone Was in Your House?

Telling you now, Justin Bieber is no help in protection to you. But YES! I have! It was like a stormy night and my patio and front door swung right open when I was home alone. I screamed so loud, then I heard the patio door slam shut. I grabbed my dog and inched my way to the living room and the door was still open :S. So freaking creepy, not sure if anyone was there or not, but I know I updated my facebook status just in case someone killed me or something :D

Have You Ever Thought That Someone Was in Your House? 1

1. HELP! I'VE FOUND AN INJURED CAT ON MY FRONT DOOR!?

vet

2. What color should I paint my front door?

Any light, bright color will probably look good with black and white. Choices: pink! not red peach, coral lemon yellow grass green, hunter green turquoise sky, royal, smoke blue purple gray - traditional, but kinda boring

Have You Ever Thought That Someone Was in Your House? 2

3. My family won t lock the front door?

theyre all forgetful and know theyll leave their keys at home the whole family should eat more oily fish

4. What can I use to cover multiple windows on my front door?

You could also spray a frost on it so light is not blocked but diffused

5. how can i train my dogs to not dart out the front door when I open it?

open the doors just a bit and then smalck them back. yell "NO"at any and all dogs that were struggling to dart out. YOU are the leader, and YOU leave the den as first. for the initial practice, have all dogs on leash, and pull them back into the house if they are darting. LEASH, not those yoyo strings for rats. as a matter of the fact, ONE of your dogs triggers that behaviour (the second in command to you, or the "brain"of the pack). try one dog after another what their behaviour at the doors is. find the one who darts out.. it's the troublemaker. leashing THIS dog only should be sufficient.

6. What would you do if Justin Bieber showed up at your front door?

take a pic and shut the door hahha

7. What would you like to find in a basket placed at your front door?

strippers. Seriously, I need to paint and I hate stripping

8. What kind of lock would be safest for my front door and the least easy to pick?

You can get Deadbolt locks that are keyed on the outside and have an easy to turn lever/knob on the inside so you can easily get out

9. How can I get my cat to stop peeing on the mat at our front door?

Option 1:Throw away the mat. Option 2: Throw away the cat.

10. What color should I paint the front door?

I agree with Barb, red is a great color for your door, it's warm and inviting, and I've heard that a red door brings your home good luck

11. There are TWO large "No Soliciting" signs on the front door to my office...?

get new doors--get the kind that you need a swipe card to get in the doors... sure would keep a lot of people out that way----if no one can open your door without a special card... you wo not have to worry about being bothered. .. by ANYONE.

12. If a child escapes a daycare class room and lets an unauthorized person in the front door, is the daycare responsible?

Sadly this happens. Yes the daycare is responsible technically but at the same time your child ran out of the classroom therefore the child used to have some form of punishment because they cannot run out of the classroom sometimes the teachers can't catch them it's happened more times than you can imagine sometimes in some cases that are very rare the teacher can't catch them nor the office staff at one point I've had to chase a child through our entire building only to cut them off when they thought the kitchen was their way out of the building I've had kids run straight through four teachers and out the door to the playground. Or the front door. The only way to stop this from happening again is to teach the kids to not touch any door. Only adults.If a child escapes a daycare class room and lets an unauthorized person in the front door, is the daycare responsible?.

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Problems of Phased Array Ground Penetrating Radar Detection System
Although GPR has been widely used in hydrology, engineering, environment and other fields, many basic theoretical and technical problems have not been fundamentally solved, so the real advantages of GPR have not been brought into full play.The main problems existing in GPR technology include:1) The detection depth is shallow, and the contradiction between detection depth and resolution cannot be overcome. Increasing detection depth means sacrificing detection resolution;2) Multiple spread and other clutter jamming are serious, and there has been no good elimination method, which exists in radars at home and abroad;3) The influence of medium unevenness is great and can not be eliminated, resulting in difficulty in obtaining necessary velocity data;4) The data collection method of single sending and single receiving can provide limited information for post-processing and interpretation.The above problems are fatal defects for GPR. Although many geophysicists, electromagnetic experts and geophysical workers have done a lot of research and improvement on radar antenna design, signal processing and underground target imaging, these works are only partial modifications to the existing GPR system. In order to develop GPR technology, we must update our ideas and solve the problems from the fundamental principle.In view of this situation, experts proposed to develop a new GPR system - phased array GPR detection system in 1999.The basic research idea is to replace the current monopole radar antenna with the phased array radar antenna by using the relatively mature military phased array radar technology. Its purpose is to gather the electromagnetic wave into a narrow beam to transmit underground (or detection object) through the phased array technology, and receive the radar echo signal reflected by the target by using the multi-channel acquisition technology, The advanced data processing is carried out, and finally the three-dimensional image of the internal structure of the detection object is given.Development prospect of ground penetrating radar technologyIt is worth noting that at present, similar products have appeared in the market, such as RIS antenna array series of a company, but these products simply combine multiple monopole antennas into array antennas, which is essentially different from the idea of phased array ground penetrating radar.Because the phased array radar converges the electromagnetic wave into a narrow beam by controlling the phase delay of each channel, the energy is concentrated and the wave front diffusion is small. Therefore, the detection depth of the phased array radar is much larger under the condition of the same frequency and transmission power; On the contrary, under the same detection depth, phased array radar can improve the transmission power, so its resolution is much higher than the existing radar. In addition, since the spherical wave transmission is changed to beam transmission, the influence of medium heterogeneity is much smaller.Secondly, the phased array radar works in a continuous scanning mode and can scan in multiple directions. Therefore, the amount of information is much larger than that of the existing ground penetrating radar. For some special detection work, such as the quality detection of embankment cut-off wall, its role is unmatched by the existing ground penetrating radar (monopole antenna radar can not detect the joints, forks and other defects of embankment cut-off wall at all).Because phased array radar is a multi-channel received signal, multi-channel superposition can be carried out, just like the multiple coverage technology of reflection seismic exploration. Therefore, multiple interference can be greatly eliminated, which is difficult for existing radars. The antenna of high frequency (600mhz-1ghz) phased array ground penetrating radar can be made smaller, and its advantages are unmatched by the existing ground penetrating radar in shallow detection.At present, the system prototype has been completed. The carrier free pulse working system with center frequency of 900MHz is adopted, and the transmitting and receiving antennas are separated. 16 (4 × 4) Transmit channel forming, beam aggregation and scanning 16 (4) × 4) The channel receives the echo, and the optional scanning angles are - 36 °, - 24 °, - 12 °, 0 °, 12 °, 24 ° and 36 °.The software part of the system has rich data processing functions. The main conventional processing includes filtering, gain adjustment, static and dynamic correction, deconvolution, complex signal analysis, time-frequency analysis, etc., and multi-channel data processing, such as velocity analysis, superposition technology, coherence analysis technology, array signal processing, etc. And weak signal extraction, target automatic recognition and inversion interpretation under various clutter interference. A large number of field experiments on concrete detection in Yichang Three Gorges dam are carried out. The experimental results show that the spotlight scanning function of phased array radar has been realized, the penetration depth is greater than 1.5m and the resolution is higher than that of ordinary radar.Editing: hfy
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