Animals shrinking in the heat This article was published in Daily mail, on 17 October 2011. The author of the article is Tamara Cohen. The article discusses about animals who are shrinking due to global warming. Scientist have warned, that animals such as sheep, deer, birds and reptiles are shrinking due to climate change. Researchers say warmer temperatures over the past few years have made some animals adapt to need less body fat to survive while others are struggling for food. In the next few decades, some types of mammals, fish, birds and plants are getting smaller and evolve into miniature versions of what they are today. This could force some creatures, that people eat, to become extinct, Dr David Bickford from the National University of Singapore reviewed research showing creatures from deer to tortoises, gulls, goshawks and even polar bears have already shrunk over the past 50 years. 'Because recent climate change may be fast...
INSTITUTO POLITECNICO DO PORTO INSTITUTO SUPERIOR DE ENGENHARIA DO PORTO CHEMICAL ENGINEERING DEPARTMENT PORTUGAL Marvin Üürike Tallinn University of Technology Faculty of Chemical and Materials Technology Department of Chemical Engineering Estonia ERASMUS PROJECT STUDY OF THE HEAT TRANSFER COEFFICIENT IN A HELICAL COIL Supervisor: Albina Ribeiro Porto 2015 2 Abstract The following work investigates overall heat transfer coefficient of a helical coil and how it changes in different situations. The variables investigated were flow rate inside a submerged helical coil and agitation of the bath. To investigate the change in heat transfer coefficient in different situations, a simple
policies facilitate DH development. Introduction This paper describes barriers to district heating (DH) in various parts of Europe and to Swedish involvement in district-heating business abroad. The paper is based on a report called "District Heating in Europe: Barriers to overcome for Swedish export" , which was prepared for The Swedish District Heating Association. The losses by energy conversion in Europe are of the same magnitude as the European heat demand and consist mainly of heat that is wasted by electricity generation . District heating is a means to utilise such surplus heat to cover heat demand. District heating can utilise the heat from electricity generation in combined heat and power (CHP) plants. District heating can also use other heat sources that are difficult to use for individual buildings, such as unrefined biomass fuels, heat from waste incineration and industrial surplus heat. The latter may, for example, be a by-product from production of automotive
Alexander Grahm Bell Born March 3rd 1847 Very famous engineer, scientist and inventor Became a master pianist with no formal trainig as a child and also learned sing language when his mother started going deaf He is most famous for inventing the telephone in 1847 Joseph Black Born on April 16th 1728 Attended Glasgow University Famous physician and chemist and is credited for very significant discoveries such as latent heat, which is when heat is released and absorbed through the body specific heat, which is the amount of heat required to change the temperture of a substance, and also discovered the gas known as carbon dioxide.
Name at least 3 renewable energy sources. What consequence might there be if we use non-renewable energy too much? Which energy technology is the world's fastest growing? With what name is renewable energy also known as? Light Heat Electricity Generated from natural resources. Doesn't harm the environment. Can't be replenished Most of our energy. May cause global warming. Wind energy is the fastest growing. Most renewable energy comes from the sun. Hydroelectric energy is the oldest and largest source. Renewable energy a.k.a "green" energy. Thank you for listening! We use energy every day. It surrounds us in different forms, such as light, heat, and electricity. Our bodies
Solar Energy Presentation Introduction Solar energy Solar power Ø applications Ø energy storage method and solar power plants Solar energy Radiant light and heat from the sun Solar energy technologies include: Ø solar heating, Ø solar photovoltaics, Ø solar thermal electricity , Ø solar architecture Solar power Conversion of sunlight into electricity Using: Ø Photovoltaics (PV) Ø concentrated solar power (CSP). Click to edit Master text styles Second level Third level Fourth level
.........................................................................27 7.8 Measuring electricity..................................................................................................27 SOLAR ENERGY..............................................................................................................27 8.1 Photovoltaic energy...................................................................................................... 28 8.2 Solar thermal heat.......................................................................................................29 8.3 Solar thermal power plants......................................................................................... 30 8.4 Solar energy and the environment..............................................................................30 WIND ENERGY.................................................................................................................31 9
Small hydropower 212 ¢/kWh Geothermal 210 ¢/kWh Biomass 312 ¢/kWh Coal (comparison) 4 ¢/kWh Geothermal heat 0.55 ¢/kWh Biomass -- heat 16 ¢/kWh Low temp solar heat 225 ¢/kWh All costs are in 2001 US$-cent per kilowatt-hour. Source: World Energy Assessment, 2004 update[28] Potential future utilization Present renewable energy sources supply about 18% of current energy use and there is much
silindri kaas cylinder cover silindrisärk cylinder jacket silindrite numeratsioon numeration of cylinders silindriõli cylinder oil silmalaager top end bearing silmusläbipuhe loop scavenging sisepõlemismootor internal combustion engine sisselaskeklapp inlet valve sisselasketakt suction stroke soojus heat soojusjõumasin, soojusmasin heat engine suruõhk, käivitusõhk compressed air, starting air suruõhumahuti, -balloon starting air receiver, starting air bottle surveaste compression rate surverõngas compression ring survetakt compression stroke takt stroke teenindusluuk, manluuk manhole door temperatuur temperature tihendikarp stuffing box
Solar power Tanel terras The basics of solar power Solar power is the conversion of sunlight into electricity Photovoltaics Concentrated solar power Concentrated solar power · Electrical power is produced when the concentrated light is converted to heat, which Click to edit Master text styles drives a heat engine connected to an Second level electrical power generator or powers a Third level thermochemical reaction Fourth level Fifth level Photovoltaics Photovoltaics (PV) is a method of generating electrical power by converting solar
SÕNAD! täiteaine-aggregate Sideaine-binder Toornafta-crude oil Bituumen(põhja-A)- Bituumen mujal maailmas-bitumen Pressitud killustikkate-macadam Osake-particle Maardla-mineral deposit Puhastatud, rafineeritud jääk- a Regined residue Defineeri sõnad? Asphalt-“Asphalt” is a dark brown to black, highly viscous, hydrocarbon produced from petroleum distillation residue. This distillation can occur naturally, resulting in asphalt lakes, or occur in a petroleum refinery using crude oil. Slurry-Slurry seal involves a creation of mixture of asphalt emulsioon and fine crushed aggregate that is Spread on the surface of a road chip seal-Chip seal involves spraying the road surface with asphal emulsions followed by crushed rocks or gravel Heat island-The term "heat island" describes built up areas that are hotter than nearby rural areas.
IS THE KEY • IDENTIFY THOSE LOCAL COMMUNITIES, WHICH ARE INTERESTED ON BIOENERGY PRODUCTION – IMPLEMENT SURVEY • AGREE THE SELECTION CRITERIA WITH COMMUNITIES – PRE-FEASIBILITY AND SUSTAINABILITY IMPACT STUDIES • SELECTION OF BIOENERGY PILOT COMMUNITY – NAME IT ÄÄSMÄE AS CASE PRINCIPLES OF BIOENERGY VILLAGE ÄÄSMÄE • Ääsmäe ENERGY PRODUCTION AND CONSUMPTION IS ONE SUSTAINABLE WHOLE COMPLEX – CO-GENERTION OF ELECTRICITY AND HEAT • FLEXIBLE AND ADAPTIVE SYSTEM FOR PRODUCING BIOEENRGY FROM AGRICULTURE, NATURE PROTECTION AREAS, FORESTS AND THEIR RESIDUES • FROM SURRAOUNDING ENVIRONMENT (15-30 km) INFO KOGUMINE PROBLEEMIDE KAARDISTAMINE TAGASISIDE SWOT PRIORITEETIDES TÄIENDAMINE KOKKULEPPIMINE UUE VISIOONI ARENGUIDEE EHK SEADMINE VISIOONI SEADMINE INFO VAHETUS
The final stroke is the exhaust stroke. The exhaust valve opens when the piston hits the bottom, and the piston pushes the exhaust out. Both engines also have camshafts, which operate the opening and closing of valves. Difference The main difference between a gasoline engine and a diesel engine is the fuel used. The main difference between these fuels is the combustion ratio at which each will explode. Gasoline does not self-ignite when compressed, because it does not generate enough heat. It needs activation energy to explode, and this energy is generated by a spark plug at the top of the cylinder. Diesel on the other hand, does not require a spark plug to ignite it because it generates enough heat when it is completely compressed to ignite itself and cause explosion. . Diesel engines have a much higher compression pressure than gasoline engines. The higher compression pressure in diesels explains the difference in the methods of ignition used in gasoline and diesel engines.
CONDITIONALS 0 or 1? TYPE 0 ZERO CONDITIONAL In 'zero' conditional sentences, the tense in both parts of the sentence is the simple 'IF' CLAUSE (CONDITION present: ZERO CONDITIONAL (TYPE 0) 'IF' CLAUSE MAIN CLAUSE (CONDITION) (RESULT) If + simple present If + simple present If you heat ice, it melts. If it rains, you get wet TYPE 0 'IF' CLAUSE MAIN CLAUSE (CONDITION) (RESULT) If + simple present If + simple present If plants don't get they die. enough water, If you mix red and blue, you get purple Make sentences (type 0) Heat water/ boil Mix yellow and red/get orange Conditional Type 1 · First Conditional: real possibility · We are talking about the future. We are thinking
include: controlling pain, preventing limitation and restoring ROM in affected joints, maintaining and improving muscle strength, increasing and maintaining endurance for activities of daily living, minimizing the effects of inflammation, and ensuring normal growth and development. Raising awareness about the disease in patients and families Heat-cold treatment, massage, electrical stimulation, and ultrasound Heat treatment ...is used for decreasing the rigidity of joints, increasing the flexibility of the fibrous tissue in joint capsules and tendons, and decreasing pain and muscle spasms Effect depends on several factors Hot shower or taking bath may be good Applying treatment before stretching exercises will increase the efficiency of the treatment Massage ...can relieve the pain and prevent adhesions in the subcutaneous tissues
t i g h et S pa Ingredients v 2 packages of spaghetti 200 g v 1 liter of water v 1 medium onion v 3 cloves of garlic v 1 tablespoon salt v 3 tablespoons oil soup v 2 tablespoons butter v 150 g of minced meat v tomato sauce Preparation 1. You must Fill a large pot with water and salt after you add onion, garlic cloves and oil. you need to heat water over high heat until boiling, then you must add the spaghetti and after you have Boil for 12 minutes until they plunged. 2. Next, you must add 2 tablespoons of butter. you need to cook meat with tomato sauce, again you must add onion, salt and garlic after it is cooked add the cooked spaghetti, after you must cook for 3 minutes serve. . . . i n a lly F the result!
Emu The information about Emu The emu is the largest bird in Australia. There are three subspecies of emus in Australia. They are soft-feathered, brown and they reach up to 2meters. The feather structure prevents heat from flowing into the skin, permitting Emus to be active during the midday heat. Emus can live between 10 and 20 years. They have long legs and they can sprint at 50 km/h. They feed on a variety of plants and insects and they drink seldom,and they may travel long distances to find food. They are endowed with good eyesight and hearing. Interesting facts Emus ingest stones to grind food in the digestive system. Females can mate several times and lay several batches of eggs in one season People growns emus on farm to get emus meat, feathers and emu oil.
How: unplug everything that you do not use and do not forget to turn the light off Save water - Wasting water wastes electricity wich wastes energy. How: repair all leaky water mechanisms and if possible take shorter showers Saving energy and your money Save gasoline- It takes a lot of energy to operate a car. How: use other healthier alternatives like bicyclel or walking, but even using public transport helps reduce gasoline usage Save heat-It takes a lot of energy to heat houses and water. How: wear warmer clothes, if possible do not use hot water unnecessarily
Improved Windows for Cold Climates In this paper the possibilities of improving the energy performance of windows in cold climates are exam-ined. The background for using windows with improved energy performance is the need to reduce the en-ergy consumption in buildings. Since the heat loss through windows often represents half the total heat loss from houses, much energy can be saved by developing and using better windows with respect to energy performance. The main purpose of having windows in houses is that they provide daylight and view, but windows also provide solar gain that can be utilized as a contribution to the space heating in the building. Therefore the windows also have a positive influence on the energy balance of buildings.
Task 1: 1. Lubrication system 2. Moving parts 3. Heat and wear 4. Cooling 5. Lubricates 6. Collects 7. Particles 8. Oil filter 9. Leak out 10. Amount 11. Checking 12. Dipstick 13. Friction 14. Increase 15. Become damaged 16. Changing 17. Thin 18. Impurities 19. Efficiently 20. Assembled Task 2: 1. Oil pressure switch, oil pump, relief valve, oil strainer, relief valve for oil cooler, oil filter, oil cooler, main gallery, oil pan, oil level gauge 2
The first hydroelectric power plant was built at Niagara Falls in 1879. Negative aspects of hydropower Damming rivers may destroy or disrupt wildlife and other natural resources. Hydropower plants can cause low dissolved oxygen levels in the water, which is harmful to river habitats. Hydroelectric power plants don't work for a very long time. Silt, or dirt from a riverbed, builds up behind the dam and slows the flow of water. Geothermal energy Geothermal energy is the heat from the Earth. It's clean and sustainable. It can be extracted without burning a fossil fuel such as coal, gas, or oil. Geothermal fields produce only about onesixth of the carbon dioxide that a relatively clean naturalgasfueled power plant produces. Unlike solar and wind energy, geothermal energy is always available, 365 days a year. It's relatively inexpensive. There are three types of geothermal power plants: dry steam, flash, and binary. Geothermal energy is generated in over 20
Possible conditions = first conditional Improbable conditions = second conditional Impossible conditions = third conditional Kasutamine We use the zero conditional to talk about something that is a general truth or fact (if= every time). ÜLDTÕED JA FAKTID. Sündmused, mis alati viivad samade tulemusteni. If the temperature is below 0° C, water freezes. Moodustamine: If + lihtolevik , + lihtolevik TINGIMUS TULEMUS If you heat water to 100° C, it boils. If you own a car, you have to pay for insurance. Laused võib ka ümber pöörata SEL JUHUL EI OLE KOMA: Water boils if you heat it to 100° C. You have to pay for insurance if you own a car. Tingimuslaused: FIRST CONDITIONAL Kui sa teed x, siis suure tõenäosusega juhtub y. Kasutamine We use first conditional to talk about REAL POSSIBILITY. Tingimuse täitumine on reaalne
Pour the water into a bowl and then gradually add the chickpea flour. Mix this using a wire whisk, and then add salt into it and allow it to stand for 4 hours at room temperature or overnight. Remove any foam that forms on the top. Then, grease a 16-inch by 12-inch baking pan with oil, and then add 2 more tablespoons of oil into it. Next, put the chickpea mixture into it, using a fork to mix it and the oil well. Sprinkle the top with pepper. Then, cut the onion into thin slices. Heat 2 tablespoons of oil in a pan and add the onion into it, cooking it for around 10 minutes on medium heat. Then heat the oven to 400 degrees, top the farinata with the cooked slices of onion and bake for about 20 to 25 minutes. Then, take it out of the oven and allow it to cool for Pasta types Long form pasta or strand pasta: It appears spaghetti-like and can be twisted around the fork. The strand pasta can be round or flat and solid or hollow.
First snow It was unusually hot in my small bedroom when I woke up. As I looked at the clock, it was only 7.30 in the morning and I was still dead tired from my last night`s birthday party. I didn´t feel any strenght left in my muscles but nevertheless I walked across my bedroom to turn the radiator down. That was strange. The heat wasn´t on. When I opened the window to let in some cooling autumn air I saw something slowly falling from the sky. It was too early for the first snow and also the weather was also unusually warm. I opened the window even more to get rid of that suffocating air stuck inside the room but that made it even worse, all the breathable air seemed to fly out. Next, I quickly closed the window and rushed to the bathroom where I was about to take a refreshing cold shower
Sandra Bullock I´m going to talk about Sandra Bullock. The reason I´ve chosen her is that she is my favourite actress and people had said that I look same as her and I hope you will lear a few things about her. As for her background she was born in July 26, 1964, in Arlington, a Virginia suburb of Washington, D.C. Did you know that her mother, Helga Bullock was a German opera singer and her father, John W. Bullock was an American voice teacher, who was born in Alabama. You might not know that Sandra grew up on the road with her parents and younger sister and spent much of her childhood in Nuremberg, Germany. She often performed in the children´s choirs since she was 5. That singing talent later came in handy for her role as an aspiring country singer in North Carolina, where she studied acting. Shortly afterward she moved to New York to pursue a career on the stage. Her breakthrough ...
smoother glide, but the depletion of inexpensive wood meant a need for become scratched by small stones and ice. A polyethylene candle is used by product development and usage of modern materials. Metal skis became skiers and ski repair technicians to patch such scratches on the base. Also common in the mid-1950s. The light metal was sandwiched around a wooden core and fused by glue and heat, but this aluminum bottom froze because of its chemical nature, polyethylene is easily broken down by easily and was not the best solution. ultraviolet rays. This is remedied by applying a coat of wax to the skis after each use. The edges of skis are made of steel, which may be regular strength
There are 4 types of conditionals: 0,1,2,3 There are 4 types of conditionals: 0,1,2,3 Type 0. Type 0. If + Present Simple (V1(s/es)), ____ Present Simple (V1(s/es)) If + Present Simple (V1(s/es)), ____ Present Simple (V1(s/es)) · General truths, scientific facts · General truths, scientific facts Ex: If you heat water, it boils. Ex: If you heat water, it boils. Type 1. Type 1. If + Present tenses, ____ Future (will V) / Imperative (V) If + Present tenses, ____ Future (will V) / Imperative (V) · Real situations in the present or future. · Real situations in the present or future. Ex: If you go shopping today, buy me some bread
He was born on September 26, 1974 in Tallinn Estonia. He is one of the most famous players in Estonia. He is also the only player from Estonia who has played in NBA. His career started in a team called Alvik Stockholm. After two years in Sweden he headed back to Estonia. He had a great season in Kalev and that because he got plenty of intrest from United States. In the 1996 NBA Draft he was selected in the first round by the Utah Jazz. After the draft, Müürsepp was traded to Miami Heat. He has played 83 games in the NBA for Dallas Mavericks and the Heat, averaging 4.7 points, 2.2 rebounds in 11.5 minutes per game. His career highs include 24 points, 14 rebounds and 37 minutes played. After the NBA he spent three years playing in Greece for Aris Thessaloniki and AEK Athens. With AEK he won the 2000 Saporta Cup and the 2000 and 2001 Greek Basketball Cups. Müürsepp became the silver medalist of the season 200102 and the season 200304 in Russia with UNICS Kazan
bricks of the desired length by a wall of wires. Most structural bricks are made by this method as it produces hard, dense bricks, and suitable dies can produce holes or other perforations as well. The introduction of such holes reduces the volume of clay needed, and hence the cost. Hollow bricks are lighter and easier to handle, and have different thermal properties than solid bricks. The cut bricks are hardened by drying for 20 to 40 hours at 50 to 150 °C before being fired. The heat for drying is often waste heat from the kiln. Characteristics of Brick (slide 12) Clay bricks are good insulators. As wall materials, clay bricks make walls heavy and dense and conduct heat slowly. This slow heat conduction reduces peak cooling loads in summer and peak heating loads in winter making your home energy-efficient all year round. · The characteristic thickness and density of a clay brick wall reduces noise
e-school and so on ● Electronic ID card ● E-services in health care - e- Health record, Digital prescription ● Mobile applications – m-parking, m-ticket Spa services ● AQVA Hotel & Spa, Arensburg Boutique Hotel & Spa, Grand Rose SPA Hotel, Kalev Spa Spa services ● AQVA Hotel & Spa, Arensburg Boutique Hotel & Spa, Grand Rose SPA Hotel, Kalev Spa ● Massage, Mud treatments, Heat therapy, Salt therapy, Cold therapy, Water therapy, Instrumental treatment, Therapeutic gymnastics, Active exercises, Beauty services Spa services ● AQVA Hotel & Spa, Arensburg Boutique Hotel & Spa, Grand Rose SPA Hotel, Kalev Spa ● Massage, Mud treatments, Heat therapy, Salt therapy, Cold therapy, Water therapy, Instrumental treatment, Therapeutic gymnastics, Active exercises, Beauty services ● Water park attractions
Mainy used to heat and power production, but as well as natural lighting. Solar power released as a result of fusion reactions taking place in the sun. What is solar power? Päikeseenergia on energia, mis on saadud päikesekiirguse energiast. Põhiliselt kasutatakse seda soojuse ja elektri tootmiseks aga ka loomulikus valgustuses. Päikeseenergia vabaneb päikesel toimuvate termotuumareaktsioonide tulemusel. Using heat production production of electricity from solar energy Kasutamine: Soojuse tootmiseks (sh. tarbevee ja joogivee kütmiseks) kasutatakse päikesekütteseadmeid. Elektri tootmine päikeseenergiast võib toimuda fotoelement- ehk fotogalvaanilises elektrijaamas päikesepatareidega või päikese-soojuselektrijaamades läbi soojuse. Solar radiation is used in the installations are divided Radiation concentrating installations;
that are in no danger of a lack of long-term availability. Some natural renewable resources such as geothermal power, fresh water, timber, and biomass must be carefully managed to avoid exceeding the worlds capability to displace them. Solar energy is the energy derived directly from the Sun. Along with nuclear energy, it is the most important source of energy on Earth. People usually use solar energy to produce electricity and heat. Wind power is the conversion of wind energy into a useful form of energy, such as electricity, using wind turbines. These wind turbines are popular in counties, where the average speed of the wind is at least 6 meters per second for example in Germany, Denmark, USA and India. Hydropower is energy derived from the movement of water in rivers and oceans,it can be used to generate electricity using turbines, or can be used mechanically to do useful work.
these fuels are considered as renewables and according to the international agreement the CO2 emitted by the combustion of these fuels is not listed as a greenhouse gas. Wood, in particular the shell of wood cells, consists mainly from cellulose, lignin and hemicellulose. Due to the high carbon and hydrogen content, the lignin has higher calorific value than cellulose and hemicellulose. In smaller quantities the wood contains also tar, resins and phenols that can cause fouling of heat transfer surfaces and stack interior with the deposits that are difficult to remove From the point of view of combustion technology and practical use of fuels the following properties of fuels are of most interest: chemical composition, moisture, density, fly and bottom ash content, ash melting characteristics and content of impurities (soil, dust, etc.) in the fuel. Chemical composition of wood % in dry matter Element Wood Bark
Air pressure associated with an individual's place of work Ventilation and is presumably connected with overstress Content of oxygen in air of organism’s adaption mechanisms. Air ionization Building occupants complain of symptoms Heat exchange between associated with acute discomfort, e.g., the environment and human headache; eye, nose, or throat irritation; dry cough; dry or itchy skin; dizziness and nausea; difficulty in concentrating; fatigue; and
TWIN TOWERS Karl Reispass Basic Facts 8 years to complete · 10000 workers to construct · Buildins weighed 200.000 tons · 43.600 windows · 12000 miles of electric cables · Designed knowing that a plain could hit the building · Very strong building · The buildings were of steel construction Basic facts · 1993 terrorist act · 2001 terrorist act · Collapsed at free falling speed · heat, which is high enough to weaken the steel Burning Towers Obvious cause of an explosion Obvious cause of an explosion Legit.jpg
(Assume VR=5V). a) S2S1S0=0102 1,25 b) S2S1S0=1012 3,125 c) S2S1S0=0112 1,875 Question 16 1. Draw the motor current and the motor voltage characteristic during the operation with a constant PWM signal of 50% duty cycle. 2. Recommend the suitable range of frequency for this PWM applied in microcontrollers. Analyze the advantages and disadvantages of PWM systems. The frequency should be about 30kHz, voltage 5V. The advantages of PWM systems: 1) Very high efficiency (not much heat produced) 2) Relatively cheap 3) Makes the motor run better The disadvantages of PWM systems: 1) PWM circuits are complicated 2) Sensitive to electromagnetics and could interfere with radio signals, cause vibration frequencies, which causes noise.
Keha erisoojuse leidmine Tutvu kaalorimeetri simulatsiooniga „Heat Transfer between Metal and Water“ leheküljel ja leia http://group.chem.iastate.edu/Greenbowe/sections/projectfolder/flashfiles/thermochem/heat_metal.html tundmatu metalli X erisoojus. Iga õpilane valib ise algandmed (metalli X massi ja temperatuuri ning vee massi ja temperatuuri) õpilase andmed on erinevad! ANTUD: m (metall X)70.00g = t1 (metall X)102.00°C = t2 (metall X)39.70°C = m (vesi)55.00g = t1 (vesi) 30.00°C = t2 (vesi) 39.70°C = c (vesi) = 4,180CJ/g∙ 0 = 4180 J/kg∙ C c (metall X) = ? Lahendus: Q= m*c(t₂-t₁) Vesi: 55.00g*4.18 J/g∙°C(39.70-30.00)=2230.03 J Metall: C= Q/m(t₂-t₁) 2230.03J/70.00g(39.70-102.00)= -0.5J/g∙°C Mis metalliga võib t...
produce these types of pallets. SLAID 3 How to make sure what pallet you have? All the information is burnt on the pallet. Pallets produced in Northen-America have this kind of markings. It has a International Plant Protection Convention and Forestry Commission logo. Country code with manufactures code shows where it is made. Markings also have treatment code, this shows how this pallet is treated and with what sort of chemicals. Most common treatment codes are : [HT] = Heat treatment / [MB] = Methyl Bromide(pestiside to kill bugs) / [KD] = Kiln Dried. SLAID 4 On this slide are the markings used for pallets that are produced with EPAL licence. These pallets have three markings: The Brandings of the European Pallet Association, European Railway and European Pallet Pool. The Pallet Pool has a country code, wich is number 7, an EPAL control quality staple at number 8. Number nine is EPAL repair marking nail and manufacturer code – production date is number 10.
We believe this improves customer satisfaction with the hairdryer, as customer reviews show that they rate hairdryers with longer cords more highly than those with shorter cords. Our product also has a removeable filter, therefore the customer can clean it easily and efficiently, thus freeing up their time so that they can do other things. The long-life AC motor of the hairdryer gives the customer a high-power airflow for a faster drying time. It has three heat and two speed settings and also a cold shot button, which is superior to a similar hairdryer such as the TRESemmé 5542DU Power 2200w hairdryer, which only has two heat and speed settings. We believe giving the customer more choice makes them happier, and the reviews reflect that idea. Our hairdryer has a five-year guarantee, which is two years longer than the aforementioned TRESemmé hairdryer, and we believe this gives good value for money as although the
· Modern solutions Most common materials · Outer part of the skis fiberglass, carbon fibers, epoxy · Polyethylene in the bottom part · Coat of wax for maintaining polyethylene · Edges steel, usally hard tempered The Manufacturing Process · Milling the core - the material is put through a mill for precise cutting and finishing · Assembling the layers - the core and layers, are placed into a mold and then into a press. Heat and pressure result in a rudimentary ski, then epoxy resin is used to seal the layers together · Applying graphics - silkscreen process · Finishing - grinding and polishing, a complete quality check ·Thank you
• Wood- based fuels from fast- growing species. • Forest biomass: reneweable energy • Forest biomass, mainly used in the Nordic countries. Wood based fuels sources •Energy forest •Forest biomass •Recycled wood Wood Biomass • Biologicalmaterial derived from living, or recently living organisms. • Can be used after converting it to various forms of biofuel. • Woodchips • Pellets Bioenergy • Energy produced from biomass. • Electricity, heat, and transportation fuels. • Eesti Energia and bioenergy. Benefits of Biomass • Environmental Benefits • Economic Benefits • Energy Benefits Biofuels • Solid fuels Pellets, briquettes • Liquid fuels Ethanol Bio-diesel Conclusion • Attractive renewable energy source. • Environmental, economic, and energy benefits to society. • Challenges and barriers do exist. References • „Forest
Earth Explosive growth in recent years History Charles Fritts first solar cell, 1% efficiency (1883) Bell Labs first modern silicon cell, 6% eff. (1954) First solar powered calculators (1978) 40percentefficient solar cell in 2006 Solar panels were installed on the White house (2013) Rapid growth Solar industry is the fastestgrowing in the US Solar industry is expected to double every year until 2020 Employs over 100 000 people in US alone Solar cooker Produces heat by concentrating sun rays into one spot Takes long to cook, difficult to burn Works roughly like an oven Bread and cakes usually brown on their tops Solar power good investment? The cost of solar power is constantly falling Will be cheaper than nuclear power in 201415, than coal in 2016 17 Strong demand Enterprises are building more efficient solar panels Gujarat solar park Location: India 600 MW Thanks for listening!
SOLAR ENERGY Karol Pakkas What is solar power? Solar power is energy that comes from the sun. The sunlight gives off energy as heat. Solar power is a renewable source of energy. How does solar power work? Solar panels are used to collect sunlight. Solar panels are made up of photovoltaic cells that convert the sunlight into energy. Why do we need it? How does it lead to better health? Solar power is source of clean energy. It does not produce pollution or greenhouse gases or carbon compounds. Solar power would be a lot safer for the environment and a lot
Pasta bolognese It is a main course and it called pasta bolognese. I like it, because it`s tasty and easy to make. Ingredients 500g Spaghetti 2 tsp oil 100g smoked baco 1 pc Onion 2 cloves of garlic 400g minced beef 500 g of tomato puree 1 tablespoon of oregano (dried) salt Black pepper 1 teaspoon sugar From 1 to 2 dl of bouillon AFTER 50 g (grated) Parmesan teaspoon Prepared Heat the oil in a saucepan. Add the chopped bacon, onion and garlic and cook for a few minutes. Add the minced meat and continue frying for 5 minutes. Finally, extra tomato sauce, broth and oregano. Simmer over a low fire under the lid for 50 minutes, stirring occasionally. Season with sugar, salt and pepper. Cook the spaghetti in salted water until tender, drain and mix with the sauce. Serve with pasta, succulent sauce over-molded with grated Parmesan cheese.
SOLAR ENERGY Karol Pakkas What is solar power? Solar power is energy that comes from the sun. The sunlight gives off energy as heat. Solar power is a renewable source of energy. How does solar power work? Solar panels are used to collect sunlight. Solar panels are made up of photovoltaic cells that convert the sunlight into energy. Why do we need it? How does it lead to better health? Solar power is source of clean energy. It does not produce pollution or greenhouse gases or carbon compounds. Solar power would be a lot safer for the environment and a lot
· Recycle everything you can taaskasuta kõike mida sa saad. · Try to use phosphate-free laundry and dish soaps Proovi kasutada fosfaadi vaba pesu ja nõudepesu seepi. · Use cold water in the washer whenever possible Kasuta külma vett masinas, millal iganes võimalik. · Dont use electical appliances for things you can easily do by hand, like opening cans Ära kasuta elektrilisi asju , asjade juures mida sa saaksid vabalt teha käsitsi nt. Purkide avamiseks. · Turn your heat down, and wear a sweater Keera oma soojust väiksemaks ja kanna kampsunit. · Dont leave water running needlessly ära jäta vett ilmaasjata jooksma. In your yard oma aias · Start a compost pile alusta komposti hunnikut. · Put up birdfeeders, birdhouses and birdbaths pane üles linnusöötjaid, linnumaju ja linnuvanne. While on vacation puhkusel olles · Turn down the heat, and turn off the water heather before you leave
• special isotopes of uranium or plutonium how it works? • atom • breaking that nucleus • combining two nuclei • large amounts of energy history • Scientist discovered how to create a chain reaction • in the 1930s • Robert Oppenheimer • Manhattan Project • development of the nuclear bomb Nuclear bomb effect • release four kinds of energy 1. Radiation (Cause Disease and will effect the next Generation) 2. Electromagnetic 3. Heat 4. Pressure Hiroshima • Hiroshima was the primary target of the first nuclear bombing mission on August 6, 1945 • “Little boy” • thirteen kilotons • 70 000-80 000 killed • 70 000 injured the destruction of Hiroshima Who has nuclear weapons? video • https://www.youtube.com/watch?v=KH5Q6jbWIoQ • https://www.slideshare.net/qwe78590/nuclear-weapons- 2485685 • http://www.ucsusa.org/nuclear-weapons/how-do-nuclear- weapons-work#bf-toc-1
Animals In hot and dry deserts the animals include small nocturnal (active at night) carnivores. The dominant animals are burrowers and kangaroo rats. There are also insects, arachnids, reptiles and birds. The animals stay inactive in protected hideaways during the hot day and come out to forage at dusk, dawn or at night, when the desert is cooler. In semiarid deserts many animals find protection in underground burrows where they are insulated from both heat and aridity. These animals include mammals such as the kangaroo rats, rabbits, and skunks; insects like grasshoppers and ants; reptiles are represented by lizards and snakes; and birds such as burrowing owls and the California thrasher. The animals living in coastal deserts are: insects, mammals (coyote and badger), amphibians (toads), birds (great horned owl, golden eagle and the bald eagle), and reptiles (lizards and snakes).
Detergents Overpopulation Killing animals like birds, big cats, lions, tigers What it causes? Temperature raising Melting polar ice sheets Currents change its circulation e.g. The Gulf Stream El nino Pollution sea-water to swell up. Natural system Animals deaths Sea level rise reduce mankind's ability to grow foods, destroy wildlife. Agriculture, forestry and fishery damaged Is it dangerous is very dangerous for our existence and survival. sun's scorching heat comes to earth in a direct way the earth's surface becomes seriously heated. What should we do to prevent the dangerous effects of GW? We should not cut off trees Rather we should plant more and more trees Mills, factories, brick-fields should be set up in a very good planned way. There should be well drainage system to pass away waste materials, wastages and poisonous chemicals. Thanks for listening!
than the other. Most of their food consists of eucalypt leaves but sometimes they eat other leaves too. There is about 600 species of eucalypt, koalas eat only 30. Because they get so little energy from their diet, koalas must limit their energy use and sleep 20 hours a day. They typically eat and sleep in the same tree. On very hot days a koala may climb down to the coolest part of the tree which is colder than the surrounding air. The koala will hug the tree to lose heat. Koalas are asocial animals and spend just 15 minutes a day on social activity.
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