The Ripple Effect

The city of Milan is getting set for a progressive ban on diesel cars, due to start as early as January 2019. The bold move was announced the Ripple Effect few days ago by Milan’s mayor Giuseppe Sala at the annual Energy Festival in Rome.

Political pressure on diesel cars has been mounting for some time, particularly following Volkswagen’s Dieselgate scandal. Further, Milan has a history of strong environmental policies and has already been implementing increasingly strict anti-pollution measures on vehicle traffic for a number of years. At first sight, this might sound like a relatively mild policy. But what consequences can be expected from its enforcement in factual terms? Italy is the highest of major European countries, at about 10. 9 years, while the area around Milan features better figures as the average car is about 9 years old.

The news from Milan should not be underestimated. What about stranded diesels that won’t be authorized for city access any longer? This enormous fleet could cause a second, even more powerful push to sales of cleaner cars as residents scramble to scrap their polluting Euro 0 to 4 diesels to a suitable choice, with hybrids and pure EVs sure winners. It’s still early days and we are only talking about one city. But Milan is Italy’s financial capital, highly influential to the nation’s economy and culture, as well as an international trend-setter. We can rest assured that more cities and smaller towns in Italy will now up their game and follow Milan’s lead, perhaps starting with Rome, where mayor Virginia Raggi expressed similar intentions last February with a yet to be confirmed total diesel ban in the city center by 2024. The brave message from Milan’s mayor on the transition to clean transport is a welcome milestone set to cause a ripple effect way beyond its city limits.

The Ripple Effect

The Ripple Effect

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It is bound to spread to the rest of Italy and probably abroad and accelerate the switch to electric cars. Doubtful automakers are warned: Winter is coming. Carlo Ombello Carlo Ombello is an environmental engineer based in London. He writes about environment, sustainability and green technologies on his blog opportunity:energy. FUD Kicks Off The Week Again — Who’s Dizzy From The Spin? The content produced by this site is for entertainment purposes only.

The Ripple Effect

Opinions and comments published on this site may not be sanctioned by, and do not necessarily represent the views of Sustainable Enterprises Media, Inc. 2018   Sustainable Enterprises Media, Inc. Sorry, your blog cannot share posts by email. What Is Ripple and Why Is It Beating Both Bitcoin and Litecoin? 18 billion in just three days. There’s a new cryptocurrency on the rise.

Ripple, which was designed for banks and global money transfers, has seen the value of its XRP digital currency skyrocket in the past three days. Prices for an individual Ripple XRP are considerably more affordable than its alternatives, making it even more attractive to cryptocurrency speculators. This surge has pushed Litecoin down to the fifth most valuable cryptocurrency. Both Ripple and Litecoin are still far below Bitcoin and Ethereum, however. While it wasn’t released until 2012, Ripple is actually older than Bitcoin. The original version of the company was created in 2004, according to Bitcoin Magazine.

Collections including Ripple Glass

Ripple’s cryptocurrency has been adopted by banks and other financial institutions. Those companies believe Ripple’s system offers both better prices and is more secure than other digital currencies, including Bitcoin. It allows users to send, receive, and hold any currency in a decentralized way via the Ripple network. The company is cash-flow positive and holds a vast store of XRP, which it periodically releases into the market.

But the real appeal of Ripple’s XRP for banks is its liquidity. The liquidity needs of banks today is managed with literally ten trillion of float that sits in these nostro and vostro accounts. We believe very strong this is an inefficient model. You can use digital assets to fund liquidity, and Ripple is uniquely positioned to capitalize on that.

Bitcoin takes four hours to settle a transaction. Investors who believe cryptocurrency may be reaching a peak are looking for others that could provide a greater return in the long term. The company has hit some notable milestones in recent months, though. As of October, Ripple had licensed its blockchain technology to over 100 banks. Last month, American Express came on board. 100 million cryptocurrency hedge fund will be valued in Ripple’s XRP. How much has Ripple grown in 2017?

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P Index data is the property of Chicago Mercantile Exchange Inc. Powered and implemented by Interactive Data Managed Solutions. Already a print edition subscriber, but don’t have a login? Intravenous fluid bags are running out. Then it caused a ripple effect in mainland hospitals. A link has been sent to your friend’s email address. A link has been posted to your Facebook feed.

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15, 2017 photo, some roofs damaged by Hurricane Maria have awnings installed in El Gandúl neighborhood, in San Juan, Puerto Rico. While Puerto Rico slowly recovers from the destruction of Hurricane Maria in September, hospitals on the mainland are dealing with some of the side effects of that destruction. They’re struggling with a shortage of intravenous fluids directly linked to the hurricane damage. Baxter, a major manufacturer of intravenous fluids and bags, has three factories in Puerto Rico. In an email, a spokesperson at Baxter said 10 weeks after the hurricane hit the island, one of their factories in Puerto Rico is still being powered by a diesel generator. The other two factories are back on the electrical grid, but power is intermittent. Severe damage to roads and bridges is also slowing the recovery.

IV fluids like saline and dextrose are the lifeblood of hospitals. They’re needed to deliver medications and rehydrate patients. Hospital pharmacies use the smaller IV bags to mix medications. But they’ve been in short supply, especially since the hurricane, so pharmacists have relied on the larger bags.

Now those larger bags are running out, too. As some of you are aware, nearly all hospitals across the country are currently reporting significant shortages of IV fluids. Although IV fluid shortages have occurred intermittently since 2014, the impact of Hurricane Maria on Puerto Rico this fall has greatly exacerbated the situation, given the significant medical products manufacturing industry on the island that sustained damage. We have now reached a point where the shortage is of potential operational concern. Pizarro gives a brief pep talk to volunteers from the U. Puerto Rico before they head out to perform hurricane relief work in Arecibo.

A group of volunteers from the U. Puerto Rico prepare to clean a church that was heavily flooded during Hurricane Maria. Pastor Bert adds fuel to a pressure washer as part of an effort to clean a church that was heavily flooded during Hurricane Maria. Bert who leads an Assembly of God ministry in San Juan, Puerto Rico, noticed a federal response effort to Hurricane Maria that was lacking in urgency and effectiveness. Pastor Bert references his giant calendar of hurricane relief work in the Puerto Rican headquarters of the Assembly of God church. Nicole Guzman of New York shovels mud that was heavily flooded during Hurricane Maria from the stage of the Asemblea de Dios church in Arecibo. The waterline from the flooding can be seen on the wall behind her.

The Ripple Effect

Nicole Guzman of New York shovels mud with a group volunteers from the U. Puerto Rico, in an effort to clean a church that was heavily flooded during Hurricane Maria. A back room in the home of José Rodriguez and Ada Martinez, which was severely damaged by flooding and winds during Hurricane Maria, remains untouched since the disaster. Pastor Bert and a group volunteers from the U. Puerto Rico join hands to pray in the rain before heading out to perform hurricane relief work in Arecibo. A bedroom in the home of José Rodriguez and Ada Martinez, which was severely damaged by flooding and winds during Hurricane Maria, still has a hole in the roof.

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José Rodriguez and Ada Martinez pose for a photo in the living room of their home, which was severely damaged by flooding and winds during Hurricane Maria. A family photo rests on the muddy floor of the home of José Rodriguez and Ada Martinez, which was severely damaged by flooding and winds during Hurricane Maria. Blanca Serrano, a member of the Asemblae de Dios church of Arecibo, visits the church as volunteers clean out mud deposited by heavy flooding during Hurricane Maria. A dead crab left behind by heavy flooding during Hurricane Maria still sits untouched on the floor of the Asemblea de Dios church in Arecibo. Richard Perez of New York City dumps a wheelbarrow mud cleared from a church that was heavily flooded during Hurricane Maria. A tambourine is found plastered to the floor in dried mud in the Asemblea de Dios church in Arecibo. A group volunteers from the U.

Puerto Rico can be seen cleaning up the mess in the background. Pastor Bert looks for his rubber boots before heading out to perform hurricane relief work in Arecibo. The Puerto Rican headquarters of the Assembly of God church is now being used by Pastor Bert as a staging point for hurricane relief efforts. 17 9:41:56 AM — Arecibo, Puerto Rico — A chair sits caked in dried mud in the Asemblae de Dios church in Arecibo. The waterline from flooding during Hurricane Maria can be seen on the wall in the background. 17 10:16:57 AM — Arecibo, Puerto Rico — Pastor Bert directs volunteers from the U.

Puerto Rico as they clean mud deposited by heavy flooding during Hurricane Maria from the Asemblea de Dios church in Arecibo. 17 11:08:54 AM — Arecibo, Puerto Rico — Charlie Reyes, a church volunteer from New York, sweeps trash out of the home of José Rodriguez and Ada Martinez, which was severely damaged by flooding and winds during Hurricane Maria. Chris Fortier, chief pharmacist operator at Massachusetts General Hospital, says that conservation is key to dealing with the shortage. Where we can conserve, let’s conserve.

Some substitutions include injecting medication with a syringe when possible, and assessing whether a patient can take meds in a pill form, or be rehydrated orally. Pizarro is delivering supplies and hope to people after Hurricane Maria ravaged Puerto Rico. The FDA is temporarily allowing IV saline products to be imported from Baxter’s factories in other countries, but it’s unclear how much relief that will provide. Some days we expect to get product and we don’t. Some days we expect to get a lot of product and we only get some of it. According to the FDA, there have been shortages of IV fluids on and off since 2014 for a variety of reasons, but nothing like this.

In November, the American Hospital Association sent a letter to Congress stating that the U. There’s just no more to be had and you can only go so far with your conservation methods. We’re all doing everything we can do. Pharmacists also worry the ripple effects of Hurricane Maria won’t stop with IV fluids. Puerto Rico produces more pharmaceuticals for the mainland than any of the 50 states and more than any single foreign country, according to an FDA economic analysis released in November. Cancer drugs and HIV medication are among the products manufactured on the still-devastated island. Fortier says it’s difficult to prepare for potential shortages because the FDA does not require companies to disclose where their drugs are made.

There are other plants in Puerto Rico that made drugs, and will those products go on shortage? Hospitals say patient care is not being compromised, but they don’t expect the shortage to let up until at least early next year. This article originally appeared on PRI. Share your feedback to help improve our site experience! 7 Ripple Effect is a 57-minute homemade film produced and narrated under the pseudonym “Muad’Dib”, who was later named by the BBC as conspiracy theorist John Hill. The film poses numerous questions about the events surrounding the attacks, and alleges alternative theories for who was behind them. 7″, which first aired on 20 June 2009, addressed part of the claims made in the film as well as other theories surrounding the attacks.

The film was first released on the Internet on 5 November 2007, two years after the attacks. Physical copies were also sent to many of the people connected with the attacks. 11 Film Festival at the Grand Lake Theater in Oakland, California. Archived from the original on 12 December 2010. As well as these time-varying phenomena, there is a frequency domain ripple that arises in some classes of filter and other signal processing networks. Ripple is wasted power, and has many undesirable effects in a DC circuit: it heats components, causes noise and distortion, and may cause digital circuits to operate improperly. Ripple may be reduced by an electronic filter, and eliminated by a voltage regulator.

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The initial step in AC to DC conversion is to send the AC current through a rectifier. AC voltage minus the forward voltage of the rectifier diodes. In the case of a SS silicon diode, the forward voltage is 0. Please expand the section to include this information. Further details may exist on the talk page. Reducing ripple is only one of several principal considerations in power supply filter design.

The Ripple Effect

The Ripple Effect

The filtering of ripple voltage is analogous to filtering other kinds of signals. DC power conversion as well as DC power generation, high voltages and currents or both may be output as ripple. The majority of power supplies are now switched mode. The filtering requirements for such power supplies are much easier to meet owing to the frequency of the ripple waveform being very high. The number of reactive components in a filter is called its order. A common arrangement is to allow the rectifier to work into a large smoothing capacitor which acts as a reservoir. At that point the rectifier conducts again and delivers current to the reservoir until peak voltage is again reached.

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If the RC time constant is large in comparison to the period of the AC waveform, then a reasonably accurate approximation can be made by assuming that the capacitor voltage falls linearly. A further useful assumption can be made if the ripple is small compared to the DC voltage. For the rms value of the ripple voltage, the calculation is more involved as the shape of the ripple waveform has a bearing on the result. Assuming a sawtooth waveform is a similar assumption to the ones above. Another approach to reducing ripple is to use a series choke.

A choke has a filtering action and consequently produces a smoother waveform with fewer high-order harmonics. There is a minimum inductance which is relative to the resistance of the load required in order for a series choke to continuously conduct current. If the inductance falls below that value, current will be intermittent and output DC voltage will rise from the average input voltage to the peak input voltage – in effect, the inductor will behave like a capacitor. R is the load resistance and f the line frequency. For that reason, a choke input filter is almost always part of an LC filter section, whose ripple reduction is independent of load current.

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This has the effect of reducing the DC output as well as ripple. Similarly because of the independence of LC filter sections with respect to load, a reservoir capacitor is also commonly followed by one resulting in a low-pass Π-filter. A more common solution where good ripple rejection is required is to use a reservoir capacitor to reduce the ripple to something manageable and then pass the current through a voltage regulator circuit. The regulator circuit, as well as providing a stable output voltage, will incidentally filter out nearly all of the ripple as long as the minimum level of the ripple waveform does not go below the voltage being regulated to. Because of the non-linear characteristics of these devices, the output of a regulator is free of ripple.

The Ripple Effect