reduce

Its technology aims to reduce the scope of the enemy sound

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In the underwater world, noise can be a sentence. The more silent a submersible, the lower the probability that it is detected by sounding. Although artificial intelligence begins to change the rules of the gameefforts to further reduce the acoustic firm do not cease. As SCMP points outthe last advance arrives from China, where a team of researchers has developed a technology that, in laboratory conditions, has managed to significantly cut the vibration that is transmitted from the engine to the helmet. The idea starts from replacing the traditional engine rigid supports with a hybrid structure of active-peasive insulation. The system was presented at A study reviewed by pairs published in Noise and vibration control By researchers from Jiao Tong University in Shanghai, in collaboration with China State Shipbuilding Corporation (CSSC). According to the authors themselves, a reduction of only 10 decibels at the noise level of a underwater vehicle could decrease its 32%detection range. A double control system. The system combines two elements. On the one hand, a steel-gum-steel ring that acts as a passive shock absorber. On the other, a series of 12 piezoelectric actuators that surround the engine and neutralize micromovimientos with the help of precision levers. These actuators are designed to adapt to reduced assembly space. The combination allows to reduce both structural vibrations and low frequency sounds, the most problematic for stealth. The system is governed by an FX-LMS algorithm, an adaptive method that coordinates the 12 actuators and avoids interference between them. Thanks to this intelligent management, the system can adjust your response in real time, which allows you to maintain control even in the face of unexpected variations in engine behavior. The method is based on rebuilding the interfering signal to feed the noise cancellation. Promising results, but in laboratory. The tests were performed with a 200 kg simulated engine mounted on a cylindrical metal housing. The system was designed to operate with a regime of 1,500 revolutions per minute (25 Hz). At 100 Hz, the passive system managed to reduce noise by 12 dB. With the complete system, the attenuation reached 24 dB. At 400 Hz, the reduction was 26 dB. The researchers explain that the chosen frequencies correspond to the most common spectral lines of the engine. A development still with questions. The study also indicates limitations. The rigidity of the rubber used in the passive system can be affected by temperature and pressure variations, and the durability of piezoelectric actuators has not yet been verified in real operating conditions. In addition, researchers do not specify what type of underwater would use this technology or the final impact that it would have on its global acoustic profile. In fact, the term “underwater vehicle” is used throughout the study. That is, they do not speak of diesel-electrical submarines or nuclear submarines. For now, it is an experimental development with promising results. The participation of CSSC suggests strategic interest, but there is no confirmation that this system has been integrated into any operational platform. What demonstrates is that China continues to bet on advanced technologies to reinforce its underwater stealth, an important factor in the modern naval war. Images | TOOK-RANCH (Wikimedia Commons) | Jiao Tong University In Xataka | The war in Ukraine had a red line of 70 kilometers. West has just eliminated it after Russia’s last attack

Spain wants to reduce marine pollution and will start in an unsuspected place: the bathroom

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Spain adds this year 642 beaches with blue flag, four more than last year, According to the Association of Environmental and Consumer Education (Adeac). This badge, which recognizes the environmental quality, security and services of the coast, returns to place the country among world leaders. Even so, the figure represents only 18 % of the more than 3,500 beaches in the country, which shows a pending challenge. To face it, Spain has begun to move. A new plan is brewing. Rather, a new bill with The goal of reducing pollution For single -use plastics, where wet wipe manufacturers will be forced to assume cleaning costs derived from the improper use of these products. In addition, the initiative wants to prohibit citizens from discarding wipes by the toilet and release balloons in the air. With this measure, Spain seeks to align with European standards on single -use plastics and move towards the UN sustainable development objectives. A serious problem. Wet wipes, even those made of natural polymers without chemical modifications, generate an important environmental impact. Its resistance to decomposition causes obstructions in sewerage and purification systems, especially during periods of heavy rains, such as has detailed The Guardian. The microfibers that release reach rivers and seas, aggravating pollution and raising management costs for local authorities. Responsibility. The new law will force companies to take care not only for the cleaning of the waste they generate, but also of information campaigns. To control who should pay, manufacturers will have to officially register. Although biodegradable wipes would be exempt, the Ministry of Environment He has insisted In that it is best not to throw any for the wiper, to protect pipes and the environment. A very economical topic. A awareness campaign of the Spanish Water and Sanitation Supply Association I already estimated Six years ago, the withdrawal of these wipes was an annual cost of 230 million euros. Until now, economic consequences have fallen to public administrations. According to eldiario.esValencia had to invest 10 million euros in 2019 to clean a three -kilometer jam. In Badajoz, a similar athlete was a cost of 200,000 euros. Murcia encrypted in more than 250,000 euros the replacement of a damaged team at a treatment plant, while the repair of pumping equipment amounted to another 200,000 euros. Other countries already have the lead. Four years ago, both France, Germany, Belgium and England They prohibited use of single -use plastic products, following the EU guidelines. In addition, on the one hand, France a year later prohibited the use of plastic To package small fruits and vegetables. On the other hand, Germany and Belgium They have been developing A fund funded by single -use plastics manufacturers, who must contribute according to the amount of plastic they sell. This fund aims to cover the cleaning costs of public spaces and waste management, reinforcing the principle of “who pollutes, pays”. It does not start on the shore. While the bill continues its parliamentary processing, its effectiveness will depend much on the citizen response. Because the care of the beaches does not begin only on the coast, but in the daily habits of those who enjoy them. Image | Pexels and Marco Verch Xataka | If the question is whether there is an “invasion” of moths in Murcia, the answer is that of every year by these dates

The White House will try to reduce NASA’s scientific budget by 50%. It is so devastating that Elon Musk has separated

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The White House has presented a preliminary proposal of its budgets by 2026. If the United States Congress approved them, NASA would see 20% less money next year, but with an especially controversial turn, because they would be cuts centered on science. A devastating loss. NASA is the largest and most influential space agency in the world. Its direction of scientific missions finances some of the most important research for the advancement of astrophysics, planetary science, terrestrial science and heliophysics. Studies in which international entities such as the European Space Agency often participate. The White House budget in half reduces the resources of the Directorate of Scientific Missions. It would go from 7.5 billion dollars in the fiscal year from 2025 to 3.9 billion in 2026. The consequences are so devastating for the scientific community that Elon Musk has described it as “worrying” and It has come out to clarify that has not had anything to do: “I am very in favor of science, but unfortunately I cannot participate in the discussions about NASA’s budget because Spacex is an important NASA contractor.” Affected missions. While the proposal maintains the financing of HUBBLE observatories and James Webb, explicitly cancels other space telescopes, including the Nancy Grace Romanwhich is already completely assembled waiting for its launch. The two most important planetary missions that would not continue with the White House Budgets are, on the one hand, Mars Sample Returnthe recovery of Martian soil samples that has been collecting the Rover Perseverance, and the Davinci mission to explore Venus. Both milestones would be in the hands of China, which It has similar missions in your scientific roadmap. Goodbye to the Goddard? According to Ars Technicathe cuts seem designed to force the closure of the Goddard Space Flight Center, the NASA headquarters in Maryland, which uses 10,000 officials and contractors, and from where iconic cosmological, land and sun observation missions are operated. Astrophysics: it would reduce its budget by two thirds, leaving 487 million dollars. Heliophysics: it would reduce its budget by more than two thirds, leaving 455 million dollars. Terrestrial science: would reduce its budget in more than half, remaining at 1,033 million dollars. Planetary Science: would reduce its budget by one third, being at 1,929 million dollars NOAA is even worse stop. Donald Trump’s administration also seeks Complaint the magazine Science. Like NASA, NOAA is one of the world’s main scientific agencies, but in the weather, climate and space climate. The cuts would close the Ocean and Atmospheric Research Office (OAR), and would leave hundreds of scientists who study global warming. Waiting for Congress. NASA has a period of 72 hours to appeal these figures before they are incorporated into the final budgets. Ultimately, it will be the United States Congress who approves them. It is likely that the cuts are with strong opposition in Congress, Very sensitized With the idea of ​​losing ground in front of China. “This would tithe the American leadership in space and inflict great damage to NASA centers throughout the country,” Congressman George Whitesides, from the Science Committee, told Ars Technica. It would be like an “extinction event.” Image | POT In Xataka | 12 years after making fun of Spacex and his idea of ​​landing rockets, Arianegroup is creating a European mini-falcon 9

The US plan to reduce oil is about to derail what worked best in its economy

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Brent and Wti crude prices suffered a great fall of the barrel two days ago. This situation caused a very large alert In the markets, since since February 2021 there was no such low data. After the storm, prices have stabilized around 60 dollars the barrel for the Trump measure of suspend for 90 days The highest tariffs to different countries. In this way, the commercial war has become A direct conflict against China that does not know the scope tariffs, leaving an economic paradox in reducing oil price. Lowering prices. Until now, the United States has managed to reduce its commercial deficit thanks to the revolution of the shale, which has made the USA Net oil exporter Since 2020. This expansion prior to Trump’s second mandate had achieved reverse decades of foreign oil dependence. However, the impulse to pierce with the famous “Drill, Baby, Drill” Together with tariff policies, it has caused global uncertainty, According to PVM analyst Tamas Varga in Reuters. There are no good ideas. And it is evident that Trump’s policies They lack a coherent direction. According to Reutersthe fall in crude oil prices is a reflection of the loss of confidence in American economic policy, especially in the middle of a commercial war, affecting the global demand for oil. Also, like He has stressed Energy expert Javier Blas, drilling and production costs are not profitable below $ 65 per barrel in the United States. In other words, if prices fall too much, production would decrease, which would force more oil and, therefore, would expand the commercial deficit, which is precisely what Trump wants to reduce. The paradox. The contradiction in Trump’s policies is clear: its strategy of reducing oil prices to control inflation and stimulate the economy will have the opposite effect to the desired one. According to Blas explainedTrump’s objectives was precisely to reduce the commercial deficit. Before its presidency, the revolution of the shale, which allowed the United States to become a net oil exporter, was one of the factors that contributed significantly to improve the trade balance in the last two decades. However, by pushing prices at lower levels, Trump is running the risk of undoing the advances achieved, generating a macroeconomic imbalance that would seriously affect local production and increase import dependence. Besides, Anz Bank analysts in Reuters They expect that, if world economic growth falls below 3%, oil consumption could decrease 1%, which would further aggravate the situation. Depending on oil. This Trump strategy also affects other countries than their income They are derived of the export of oil, such as Saudi and Russia Arabia. Although oil has experienced very significant fluctuations for more than five years, it is not even this commercial war when tensions have been exacerbated causing a strong fall. This situation can cause a new layer of geopolitical tension. On the one hand, Saudi Arabia needs raw barrels to exceed $ 90 to continue building and investing in their macroprojects, Like Neom. On the other hand, the fall in prices in Russia has generated Even more pressure on its economy, which is already weakened by the Ukraine War. Forecasts. As He has warned Javier Blas, “drilling, drilling, drilling” will not work if the barrel is 50 dollars and if the United States does not pierce, it must import it. In short, leaving a scenario in which the US president, in his attempt to control prices, can end up undoing the most effective tool he has had to reduce the commercial deficit in decades. Image | Gage Skidmore and Unspash Xataka | China responds again to US tariffs and rises to 125%: from here it would be a “joke” to keep climbing

tricks to reduce symptoms and medications to avoid

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After a month, constant rains in most of the country have risen. It will be enjoyed while lasting … And who can. Because after a month of rain, the sunrise too entails something very concrete: pollen. With the rain, the pollen stayed under but the sun makes it rise and the allergic suffer. Irritated eyes, congestion, sneezing, cough … one thousand and one symptoms that can be a real heaviness when we go out to take a walk but that becomes a real problem if we are behind the wheel when we start sneezing without brake. How to relieve the symptoms of allergy at the wheel It may seem banal but everything seems to indicate that there is a certain correlation between fatal accidents and plants pollination. Specifically, in the United States they calculated that Accidents with deceased increase around 6% When drivers suffer more allergy symptoms. Having this clear, what can we do to avoid the consequences of allergy and reduce risks? The tips before putting us behind the wheel The first and most recommended is, as for many other things, carrying good maintenance and cleaning of the car. First, the basics and what we can do more frequently: Clean the car. And do it conscientiously, taking special care in the places where dust and ventilation grilles usually accumulate. It is good to pass the crystals frequently and, in general, take the car as clean as possible. It is especially interesting to keep upholstery as clean as possible. Aspires the seats and so you will prevent possible remains of dust. It is especially important if, for example, you have an animal allergy. But in addition to this, you have to keep the car in the best possible state and, in this case, we talk about air filters. This component is recommended to change it once a year but if you do many kilometers or if where you live there is a lot of pollen and you leave the car parked on the street, it is a good idea to change them every six months. In this way, the air that is sneaked into the cabin will be of better quality and will be cleaner. The advice to drive When we have no choice but to put ourselves behind the wheel suffering the symptoms of allergy, it is best to Let’s prioritize the central hours of the day. The first hours and those of the sunset are the worst and in which there is the greatest concentration of pollen in the environment so the symptoms will also be more pronounced. In addition to because it facilitates driving, sunglasses They can be good allies because reduce eye irritation and their tear. It is convenient that we do not touch the same with dirty hands since we can increase the symptoms. For the rest, you can do little more if you have done the first step well. If the car is ready, go up the windows, activate the air conditioning and take advantage of the operation of the vehicle’s filters itself. Beware of antihistamines If the allergy forces you to medicate, always go to a specialist to tell you what you can take to reduce the symptoms and when. Some antihistamines can cause drowsiness so it is better not to take them if you have to drive. These medications They have a notice in the box With a car inside a red triangle. You must be clear, yes, that driving is not prohibited if you take one of them but advised. Keep in mind that some medications They can generate false positives In a drug control. DGT itself points out that the ideal is to opt for New Generation H1 antihistamines. In its composition it is indicated that they are formulated with Astemizol, Loratadine, Ebastina, Terfenadine, Cetirizins or Drays. Similarly, H2 antihistamines contain cimetidine, ranitidine and nizatidine and have low somnolence or fatigue risk. These medications have a sedative effect lower than first -generation H1 antihistamines, which are the most dangerous. These are formulated with dimenhydrine (biodramine) or doxilamine (sleepy). The latter is important since According to trafficthe effect of first -generation H1 antihistamines can resemble alcohol rates between 0.5 and 0.8 g/l in blood. Photo | OBI – @pixel9propics and Darwin Vegher In Xataka | Neither the DGT forbids leading celiacs nor has “prohibited medications”: the regulations are the same since 1997

The United States is willing to reduce tariffs to China, although you want something in return: Tiktok

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The US president has just written a new chapter of the soap opera starring Tiktok. Currently 170 million Americans use This Chinese social networkand bytedance, its owner, As soon as you have a week To find a buyer. The Government led by Donald Trump has given him the deadline until April 5 to sell Tiktok to a company that is not China. If you don’t will prohibit its use within the US. The US administration justifies this measure as part of a strategy that seeks to protect national security. Donald Trump and his collaborators have explained that they are worried that The Chinese government can use Tiktok to exercise and collect data from US users. And the way to prevent it is to prevent the administration led by Xi Jinping to maintain the ability to exercise some type of control over this social network. Donald Trump is willing to soften tariffs The controversial current president of the United States is aware that the Chinese government has a lot to say about the future of The social network of Bytedonce. Any option that implies the sale of Tiktok to a foreign company must be approved by the Chinese administration, and right now the negotiation seems to have reached a dead point. In fact, a few hours ago Donald Trump has confirmed, according to Reuterswhich is willing to extend the deadline of April if they do not reach an agreement about the future of this social network. At the moment Donald Trump has not specified on what percentage he is willing to reduce tariffs However, this is not the only thing that has been publicly anticipated. Has also put on the table the possibility of reduce tariffs to China If this measure contributes to placing Tiktok away from the influence of the Xi Jinping government. What has not specified at the moment is what percentage is willing to reduce tariffs, and neither What sectors can benefit from this measure. It is important that we do not overlook that during his still short second term Donald Trump and his collaborators have imposed additional tariffs of 20% to those already existing over all Chinese imports. This movement clearly reflects that for the US government The social network Tiktok is very important. Otherwise Trump would not have been willing to use tariffs as a negotiation tool. The Ministry of Commerce of China He has already respondedalthough in an ambiguous way. And it has officially declared that its position about tariffs remains consistent and that the Beijing government is willing to dialogue with Washington on the basis of mutual respect, equality and reciprocal benefit. At the moment he has not added anything else about Tiktok. Image | Gage Skidmore More information | Reuters In Xataka | The USA hits China again with a double purpose: to stop the development of its hypersonic superorders and missiles

More and more countries in the world are painting their colored roads. The goal is the same: reduce accidents

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A road with a huge red line. Another with a green line that shines in the dark. Stripes to the sides, circles in the curves and even pedestrian crossings that have become murals. The fight to contain traffic accidents is living its own fever: the fever of painting roads and streets. And it makes a lot of sense. Really It’s about deceiving our brain. When a driver or motorist perceives that it circulates through a narrower step, he lifts his foot from the accelerator instinctively. The same happens if you approach a crossing where the entire ground has been painted to get attention. It is obvious that this narrowing does not exist. Everything is in our mind. It is proven that a vertical signal does not generate the same perception of risk as road paint. Simply because a signal is easy to ignore it but when the view detects that the ground has a lower “free” surface a signal is sent to the brain that perceives a greater risk and the driver decreases speed. The samples are multiple and are being tested with them worldwide. Of course, Spain is also doing its own tests. A generalized illusion It doesn’t matter if we talk about Spain or any other place in the world. The human being behaves the same in Scotland, the United States, Malaysia or Andalusia. We have the test that in all these places solutions are sought to a recurring problem with an equally recurring mechanism: paint the soil. Within the cities The most striking cases are found in countries where urban distribution is designed for the car (United States) or where a road crosses a town (France). Nor are the evidence in school environments or small populations where it is common to cross walking (Spain). The first example is not only a test. As rescued in BloombergNew York City implemented Asphalt Art Initiativea project to draw large murals at conflicting crosses in the city. The results have been striking, before launching the project, 50% of the pedestrians who had suffered an outrage had suffered injuries. Painting the soil, the vehicles circulated more slowly and the percentage of pedestrians that referred injuries after an outrage had been reduced to 37%. Dragon teeth on a Madrid school Reducing the speed at which it circulates is especially important in these cases, The DGT He points out that at 30 km/h, the possibility of dying in an outrage is 10% but that at 50 km/h, the risk increases to 80%. That is why the measures taken with the educational centers where in recent years have grown up of those known as “Dragon teeth” They aspire to generate the sensation of narrowing in the streets. In Spain we have other cases. El Campillo, municipality located 70 kilometers from Huelva, He is studying If painting on zebra crossings that generate a 3D perspective It can help reduce drivers. It is not a new idea, much less, it is something that has also been tested in Iceland and USA. Of course, in the latter case they received criticism from the Federal Highway Administrationwho claimed that it was simply a false security sensation for pedestrians but doubted their direct impact on specific cases. Criticism focuses on that, really, there is nothing that really prevents the driver from continuing to circulate at a high speed. However, in France they have another idea. Tired that Beuné’s journey (a town located near Angers, west of the country) was taken as a real highway, the neighbors decided to paint the streets of the municipality. And the results were positive … at least As far as your perception is concerned because they recognized not having data from whether drivers had really reduced speed. Click on the image to go to the original publication More slowly Getting drivers to raise their foot from the accelerator when passing through a town is one of the biggest problems with which a town can fight. Especially if, as in the case of This Italian peopleit is the road that starts in two the municipality. In that case, Acchetico, a town of just over 100 inhabitants, ended up installing a radar that sanctioned 58,000 drivers in 10 days. It was a desperate measure. In Spain, work has also been worked on the secondary roads, although otherwise. In recent years, those painted on the ground that generate the feeling that the lane is narrowed before reaching a town have been popularized. It is exactly the same that is used in the streets of the School Centers although in this case they are at the entrance of some municipalities such as Nava de Roa (Burgos). It is only one of the examples that the DGT has launched in recent years. In northern Madrid, road marks such as implemented in Catalonia where some circles located in the line that divides the two lanes helps the bikers draw the curves safely and remove some gas in their path. It is a pilot test that has also been implemented in other places such as Austria. In the latter case they affirm that the simple road marks of the soil has an immediate effect in the perception of the motorist. With an investment of just 3,000 euros, it was estimated that the percentage of bikers who violated the norm and entered the opposite lane was 44%. Before painting the soil, 77% exceeded their lane. Specifically, the best data was reported from the Tyrol, where accidents had been reduced by 80%. Although the clearest example of recent years in Spain has been implemented by the DGT with a red line on a secondary road in Andalusia. On the A-355 road, which connects the populations of Marbella and Cártama, Traffic has painted a huge red line with the aim of reducing accidents on one of the most dangerous roads in Spain. When the road was created in 2014, a traffic of 7,000 cars was expected, today more than 20,000 vehicles are calculated daily. … Read more

Target will reduce its diversity and inclusion programs

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Since last week, Several US retailers and companies have announced their decision to reduce their diversity, equity and inclusion DEI programsafter conservative activists spoke out before the White House against these plans and the new administration led by Donald Trump showed its support. According to the president, these policies, which at some point were designed to represent a minority within the population, are unconstitutional. It is for that reason that On his first day as president, Trump signed an executive order proposing to end DEI programs. To date, the companies that have eliminated or reduced these programs are Walmart, McDonald’s, Ford, Harley-Davison, John Deere, Lowe’s and recently Target. Although The retailer had promoted these policies years ago with the aim of helping African-American employees with its “Belonging at the Bullseye” plan. or take the position of corporate advocate for the rights of its LGBTQ+ or even disabled employees, Target announced that it will back off with some plans. Regarding these new adjustments, Kiera Fernández, director of community impact and equity at Target, mentioned in a memo that this is just a “next chapter,” she said, as well as noting that “as a retailer that serves millions of consumers every year, days, We understand the importance of keeping up with the changing external landscape, now and in the future”. Although the company has committed in recent years to giving a voice to minorities during 2023, faced an anti-inclusion social media campaign from its consumers who mentioned that certain items sold in their stores encouraged early sexuality in children. Keep reading: –Walmart has the ideal flashlight on sale: from $189 to $19 for a limited time–5 Hidden Benefits of Sam’s Club Membership–7 Target Items You Should Buy Before Spring for Under $25

Exotic fruit that helps reduce blood cholesterol levels

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Unknown by the vast majority, the Black Aroniaalso called Chokeberryit is today one of the fruits with the greatest amount of benefits on the human body. According to a study conducted by the researcher Yulin Renof the Ohio State Universitytogether with the National Library of Medicine from the United Statesthis small fruit of appearance is capable of achieving a direct impact on the decrease in the level of Blood cholesterol and level sugar in it. But how can a tiny size berry achieve this series of important results only with its consumption? The benefits of Black Aronia in health As revealed in the investigation, this food, from the region of North Americahas a series of important nutrients and benefits as: Low calories Fiber Vitamin c Vitamin K Manganese Iron Vitamin a Vitamin e To measure the impact of this fruit In the health of a person, the team of researchers had a group of people who took the Black Aronia For 6 weeks in a row. After the completion of the clinical trial, the scientists noticed that the pressure systolic bloodas well as the Blood cholesterol levels The participants were significantly reduced. Similarly, and in addition to its benefits to counteract this type of heart diseaseit was also discovered that the consumption of the Black Aronia helped Reduce the glycemia level In the blood. In addition to all of the above, and thanks to the series of studies carried out, it was also discovered that the Black Aronia Provides important amounts of folic acidin addition to being extremely useful when Improve the digestive process Due to his power anti -inflammatory. Niacin has been shown to reduce LDL cholesterol, its impact on the reduction of cardiovascular risk has been lower than expected.Credit: Redpixel.Pl | Shuttersock In the same way, it is able to nurture the muscles and support the arthritis prevention. The Black Aronia It also has other benefits such as: Antiproliferative: It has properties that help reduce the growth of cancer cells. ANTIMUTAGENICA: It houses various nutrients that can contribute to the care of the immune system. Regarding the form of consumption, it is recommended to eat the fruit in its natural form. Similarly, it can be enjoyed by freshly made milkshakes or juices. However, and like every new food, it is important to consult an expert in nutrition to make the best decision regarding its inclusion in a diet. Continue reading: The key fruit that can improve digestion, according to Harvard experts Saúco’s juice could be a “powerful tool” to control weight What fruits can you eat if you are diabetic and which is the best, according to experts (tagstotranslate) High cholesterol

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