It’s necessary to install a photoelectric smoke alarm detector to prevent indoor fire. Fires take away thousands of people’s lives and health every year, and cause hundreds of millions of economic losses. According to statistics, the annual economic loss of living in the world can reach 0.2% of the total social product. What should you …
Smoke detector hanging from ceiling is effective to predict indoor fire. Building fires initially start in a room or part of the interior. Then it spread from there to adjacent rooms or areas, to entire floors, and finally to the entire building. Its development process can be roughly divided into three stages: initial stage, comprehensive …
Dinning Room Portable USB rechargeable sprayer is household “safeguard”. Kitchens and dining rooms are now our “epidemic” base. We need to clean the table and kitchen countertops before and after each meal. Catering utensils are preferably physically disinfected, boiled for 15-30min, or disinfected according to the instructions using a high-temperature disinfection box (cabinet). Chlorine-containing disinfectants …
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Living room Don’t take it lightly in the face of the epidemic, especially in the spring when the flu is raging. As an effective measure to prevent the occurrence of infectious diseases in the family, it is imperative to use gun fogger portable sprayer for disinfection at home on a regular basis! The living room …
Smoke fire detector senses smoke as an indicator of fire. It is installed in every level of houses, including basements. Winter is dry, which is the most fire-prone season of the year. Three fires have occurred in Jinan in two weeks. Should fires occur so frequently, should we reflect on this? Why do so …
Smoke detector hanging from ceiling adopts a LED light to monitor smoke, responsive to smoldering fire and slow-burning. According to statistics, in 2020, a total of 252,000 fires were across the country, with direct property losses as high as 4.009 billion yuan. Fire has become a frequent disaster that endangers people’s life and property safety. …
According to the type of smoke alarm sensor is divided into both ionization sensor and photoelectric smoke detector. How does ionization sensor work? There is a very small amount of alpha radioactive material (Am241) in the sensor of the ionization type smoke alarm between the two charged plates. The air causes ionization under the impact …
The study, published in the Ecological Society of America’s journal, Ecology, said these declines are expected not only because of climate-related stressors, but also because of the expanding influence of new invasive predators whose impacts are occurring much farther up the estuary. Estuaries a unique environment In estuaries, changes in salinity and water temperature strongly …
A new study published May 6 in Science by a team of Dutch, American and German scientists shows that it’s not too late to reverse the losses. The key to success, the paper’s authors say, is using innovative restoration practices — identified in the new paper — that replicate natural landscape-building processes and enhance the …
The new study examines current and future water requirements for global agriculture and predicts whether the water levels available, either from rainwater or irrigation, will be sufficient to meet those needs under climate change. To do so, the researchers developed a new index to measure and predict water scarcity in agriculture’s two major sources: soil …
