Category Archives: All

Уфа

Уфа

Сейчас перед современными пользователь открыты новые возможности, новые двери, поэтому всё что нам необходимо мы можем делать в интернете. Речь идет не только о совершении покупок, и общении со своими друзьями, но и об изучении важной и полезной информации для нас. Ведь на самом деле, абсолютно во всех городах регулярно происходят разные происшествия, разные события, которые косвенно могут касаться наших семей, нашей занятости, поэтому, абсолютно каждый человек должен стараться следить за всеми происходящими на территории города. Обратите внимание на то, что способов знакомства с новостями сейчас действительно очень много, вы можете выбрать то что интересует непосредственно вас, вы можете выбрать портал новостей, который будет публиковать новости интересующей вас тематики, и тогда, вы точно не упустить ничего важного.

.

Тематики новостных порталов

В первую очередь, самыми востребованными являются новости о политике, ведь именно от них зависит наша жизнь, зависит наша работа, заработная плата, и знать о разных законопроектах, которые принимаются государственной думой, городской думой, является обязательным. Обратите внимание на то, что сейчас в сети новости в открытом доступе, если вы желаете, вы можете ознакомиться с ними в то время, когда вам это необходимо. Также новости Уфы и Башкортостана предлагаются нам на различные другие тематики — это спорт, развитие, культура, мода, и так далее. Если вас интересуют чрезвычайные новости или ДТП, вы также можете подыскать соответствующий портал новостей, который будет публиковать новости только из этой темы. Таким образом вы точно не упустите ничего важного и значимого для вас, вы сможете всегда оставаться в курсе всех последних новостей и событий, вы будете осведомлены по поводу того что вас интересует, и это непременно принесет огромную пользу.

Как узнавать новости первым?

Если вы хотите узнавать новости одним из первых, мы рекомендуем подписаться на обновление публикаций сайта. Это не займет много времени, таким образом, вы всегда сможете оставаться в курсе тех событий, которые происходят на территории города, так как вам будут регулярно приходить оповещения о новых публикациях. Поэтому если вы желаете, вы можете выбрать сайт уже сейчас, вы можете оформить на него подписку, и ознакомиться с тем, что происходит в городе и новости Уфы и Башкортостана.

Происшествия Перми

все новости

Новости бывают очень разными. Каждый день таит много неизведанного. Он приносит свою реальность, в которой нам приходиться жить. Реальность, с которой сталкиваются наши близкие, наш город, наша страна и мир вообще. Новости могут нас будоражить, но могут и радовать. Многое в осознании и восприятии новостей зависит от того, какой тип мышления преобладает в человеке: оптимистическое, пессимистическое, или же реалистичное. Но иногда, приходят новости такого типа, как происшествия. Ини то вызывают у нас негативные эмоции. Сегодня мы вкратце поговорим о том, какие происшествия Перми случаются чаще всего.

ДТП Перми

Дорожно транспортные новости Перми и Пермского края происшествия сегодня — наверное относятся к тем происшествиям, которые случаются чаще всего. Разные причины того, что случается на дороге. Но мировая статистика говорит, что большинство аварий случается из-за несоблюдения правил дорожного движения. И действительно, если посмотреть на те происшествия, которые происходят конкретно в Перми и Пермском крае — то очень многие случаются именно по указанной выше причине. Да мы и сами видим, особенно водители, как часто нас могут подрезать на дороге. Как часто другие водители совершают неоправданный и рискованный обгон на закрытом повороте. Также, частенько причиной ДТП стают человеческая невнимательность и сконцентрированность не на дороге, а на других посторонних явлениях, людях, пассажирах. Нас могут просто отвлечь от дороги разговоры с пассажирами или по телефону. Но важно всегда помнить, что у каждого из нас только одна жизнь, и надо ею ценить. Бывает случаются аварии и из-за технической неисправности автомобиля. Так что старайтесь лучше на этом не экономить, и если что-то заподозрили неладное — заедьте на СТО и проведите Диагностику.

Криминальные новости Перми

Так, новости Перми и Пермского края происшествия сегодня частенько носят и криминальный характер. Люди нарушают законы: обманывают, проводят аферы, грабят и насилуют. Не всегда наша правоохранительная система работает на то, чтобы предупредить преступление, и защитить ни в чем неповинных граждан. Поэтому, мы сами тоже должны заботиться о нашей безопасности, чтобы не стать жертвой разводчиков или насилия.

Types of heat generation in Ukraine in 2016 and their cost

In 2016, private consumers of heat in Ukraine receive the heat from the following sources:

  1. The most common one is electricity, which means electric boilers, electric fireplaces and heaters of different kinds. Skipping some details, in most cases the ultimate source is hydropower. Possible sources are nuclear power and thermal power stations. For the most of final consumers, the distributing functions are performed by HCS (Housing and Communal Services companies) or companies of “Region-Town-Energo” type. At the beginning of 2016 the cost of «elektroheating» is about 1 UAH/kW.

To take into account getting the heat directly to the consumer’s apartment, house, or other compartment, to the cost of heat generation we will add amortized cost of the equipment, such as cost per hour based on the «25 years of the equipment running». In this example we get 1 kW/h via ceramic heating plate 1200 UAH of cost. It serves at least 25 years, which means 25х365х24 = 219000 hours, or «amortized cost per hour» of 1200/219000 = 0,0054 UAH, i.e. it is inessential.

  1. This item probably should be the first, but I gave it up in favor of the previous one (that is why, perhaps, I write so subjectively). Anyway, the TEPLOKOMUNENERGO company offers heating for 1000 UAH for 50 sq. meters, regardless to the exact month of the heating season. To my apartment TEPLOKOMUNENERGO gave about 1 kW/h, or 1x24x30 = 720 kW/month, so I paid about 1,5 UAH/kW. For three months of the heating season, 1kW usually was not enough, for the remaining three months – too much… But that depends on the weather.
  2. Gas heating. It is 7,2 UAH/cbm, a cubic meter of gas produces about 10 kW, hence about 0,72 UAH/kW! It looks like gas even competes with electricity! Equipment in case of ordinary gas stove is immaterial. If you install a gas boiler and gas heating – well, let’s say the expenses will add another 10 percent – let it be 0,8 UAH/kW. The efficiency of a regular gas boiler is 85%, a condensing one – 95%, so, considering efficiency, the figures are the same as when heating by electricity. But, as in Ukraine a lot of consumers receive electricity at lower prices than 1 UAH/kW, plus «panic of recent years caused by political situation» – it is reported increasingly often of consumers giving up gas heating in favor of electricity or solid fuel.
  3. Elektroheating with heat pumps, with «30% of electricity consumption». For example, if you install a heat pump for 100 square meters and spend 219 000 UAH on installation (it is easier to count that way), then ​​it is 0,2 UAH more for each 1kW just in amortized cost (I think you need 5 kW/h for every 100 sq. meters, so we divide 219,000 to 219,000 hours and to 5). But the cost per kilowatt is reduced to 0,3 UAH or 0,3 UAH + 0,2 UAH (amortized cost) = 0,5 UAH/kW. Obviously, the cheapest and most comfortable heating today is possible to arrange with heat pumps or expensive air conditioners (which is virtually the same thing).

Expansion of heat generation by heat pumps is limited because of the high cost of equipment.

  1. Solid fuel boilers or wood boilers. You need to burn 0.3 kg of wood to get 1 kW of heat. The average cost of timber today is 3000 UAH for 3000kg, or 1 UAH/kg.

0,3 UAH for 1 kW of heat – well, it’s competitive! The equipment costs are usually insignificant, if you do not strive for high efficiency and don’t try to invent some pyrolysis long burning boilers… But it is for a reason that I wrote about electricity (with or without heat pumps) as the most convenient, and therefore most expanding type of heating! Wood-burning boilers are not for lazy people, but for romantics, for people who are willing to throw wood into fire instead of fitness workouts. Or there can be a boiler station for large number of consumers, with a stoker – the idea is taking place when considering ecology, because the burning of wood and wood waste will not produce any harmful emissions.

  1. Heating with solar collectors. To solve at least 70% heating of 100 square meter by solar collector and get 5 kW/h in the sun you need to install a solar collecting system of 500 vacuum tubes 1800mm at 58mm. That’s $ 10000 worth of equipment, including heat accumulator (night and «non-solar» heat accumulation), and other related equipment. It is possible that in sunny weather, these 500 tubes will get 100% (let there be a better prognosis to facilitate failures). We have just 0,2 UAH/kW of amortized cost (219000 UAH for equipment divided by 219000 hours of operation and 5 kW). It seems like there are no more expenses – pumps for water or coolant pumping are insignificant (though in different schemes of taking heat from 500 pipes the cost may be essential). But you need to place these 500 tubes somewhere, as well as the heat accumulator, and there still is the most important thing – like in heat pumps – the start-up expenses! Also, the systems with solar concentrators may be regarded as solar heating systems – and they take even a few times larger area, than the 500 tubes, but are several times cheaper – you may found a lot of offers from different inventors on YouTube on installation of solar concentrators and heating thereof. Though solar heating is the cheapest and most advantageous, it is not expanding widely because of the initial cost and large area required for installing the equipment.
  2. Solar power generation, followed by the use of «photoelectricity» for heating. It is different from the preceding paragraph in the way of lower efficiency, but better convenience. http://msd.com.ua/solnechnaya-energetika/solnechnaya-energetika-v-ukraine-2015-2016-goda/ – here you can read more about this idea and the way of its realization. Let’s try and count the expenses through an example of a 10kW solar power plant, such as this one in the Kirovograd region., Video:

Averagely, such solar photovoltaic power plant gives 1200 kW per month of electricity, its cost with the installation is about $ 20000, or 500000 UAH, amortized cost of 1kW = 1,4 UAH.

In the case of feed-in tariff it is much more profitable to sell this 1kW “to the State” for 4 UAH, and get the heat for your house from other sources, so with the feed-in tariff the idea of ​​obtaining heat from solar electric power is meaningless.

Conclusion:

In today’s Ukraine the most profitable and convenient way to heat your premises is by electricity purchased «from the state». Wood heating, if a consumer is willing to increase his «romantic time spending» is more profitable than electricity – but more troublesome. Gas heating remains convenient and profitable at the time – in this matter, as they say, every man to his own taste… If you already have gas heating, there is no point in giving it up, if you are facing a dilemma – you can think… Heat pumps and air conditioning also mean heating with electricity, but with three times less consumption, and, with the possible growth of the economy and the «wealth of consumers”, it is the most promising type of heating!

Yours faithfully,

Rashid

01/02/2016

www.msd.com.ua

Stay connected to your pets

 

 

Let us admit that pets are inevitable part of the family. However, in comparison with human members of the family we give them much less attention than they deserve. We usually see and interact with them in the morning and in the evening, and the rest of the time they are alone. Of course, when there are several pets in the family, they can interact with each other so they do not feel too lonely.

Caring owners always think how to entertain their pets while they are not at home. Some people hire dog walkers to exercise their dogs or ask neighboring kids to take care of their pets when they go to work. Others prefer to use professional services that look after pets, like kennels, pet boards or pet sitters.  But some owners have no possibility to take an advantage of such help because their pets do not like strangers or they are afraid of them. Some pets feel really uncomfortable close to other animals, so in kennels they feel stressed.

All that house animals need is love, attention and exercise. And you can give it to them even when you are not at home! Petcube is a perfect way to entertain yourself and your pet without efforts and you will definite receive maximum positive!

 

What is Petcube? It is an interactive pet monitor with help of which you will be able to communicate and play with your pet. Take pictures and record videos of your pets and do not forget to share them with your friends. Moreover, you can even share access to your Petcube to all your friends, family and anyone from Petcube network!

This camera also has a microphone and a speaker so you will be able to speak with your pet and he will hear your voice also. Hearing your voice will make your pet happy and thus your connection will become stronger.

And here is the most exciting part – Petcube camera has a laser in it and everybody knows how animals love to play with laser! You can exercise your dog or cat without being home! Bring into notice that you have nothing to worry about – this laser is absolutely safe for animals with no damage to their sight.

There are even more additional features that you might find really handy:

  • Sound alerts. You will get notification via your smartphone about any loud sound in your house.
  • Motion detection. You will know when your pet is active and willing to play. Especially useful for cat owners as cats like to sleep most of the day.
  • Auto play mode – create automatic laser movement routine so your pet can play with laser without your assistance.

MILLER EFFECT

While designing amplifiers, engineers may assume that the internal capacitances in the transistor are very small com­pared to the external capacitances. But in reality, capaci­tances do exist between the base and emitter (CBE) as well as between base and collector (CBC). This is shown in Fig. 4. It can be mathematically shown that the total input capacitance

CI = CBE + (1 + AV )(CBC)

In other words, the total input capacitance is the parallel combination of CBE and (1 + AV)CBC. The base-collector capac­itance has been amplified by a factor of 1 + AV. This is called the Miller effect.

As mentioned earlier, as the frequency increases, the value of the total input impedance decreases and thereby the fre-

Vc

MILLER EFFECT

Figure 4. Miller effect with the transistor internal capacitances CBC and Cbe.

MILLER EFFECT

Coupling Яс

MILLER EFFECT

MILLER EFFECT

VINO—— }|-

Cc

Emitter

by-pass

capacitor

Figure 5. The impedances of CC and CE are large at low frequencies, and portions of signal voltages may be lost.

quency response characteristics are affected. The Miller effect is especially pronounced with common-emitter amplifiers, be­cause they introduce a 180° phase shift between the input and the output. For example, the values of CBE and CBC may be small, say 5 pF and 4 pF. But when the transistor is used in an amplifier with a gain of 99, the total input capacitance will be large enough to affect the frequency output characteristics of the amplifier. This is because

ci — cbe + (1 + av )(cbc)

= 5 + (1 + 99)(4) — 405 pF

It is recalled that at low frequencies the coupling capacitor and the emitter bypass capacitors offer high impedances and therefore portions of signal voltage may be lost, as shown in

Fig. 5.

MILLER EFFECT

A’ 7

rj V feedback

^O, Miller — A1 — 1

The Miller effect is thus an extremely important concept in discussing feedback. Equations for calculating the Miller input impedance and Miller output impedance can be devel­oped, and are given below: