If a student does not do as well on the first module, their second module will be easier. So, if a student does well enough on the first module, their second module will be more difficult. The questions in the second module are configured based on performance in the first module.” Students answer a set of questions in the first module before moving on to the next. “In a digital multistage adaptive SAT test, each test section (Reading and Writing, Math) is divided into two stages, called modules. Here’s how the College Board describes it: Of all the changes with the new SAT, the multi-stage adaptive nature of it is the hardest to explain and understand. Multistage adaptive testing? How does it work? The most significant changes with the Digital SAT pertain to the format of the test rather than its content: The current SAT because both generally test the same knowledge and skills. No, in that the new Digital SAT will largely feel the same as Yes, in that there are still some content changes (keep reading) and an entirely new test format that includes a new built-in calculator, Desmos. Will I need to prepare differently for the digital SAT? Increased emphasis on geometry and trigonometry. Scores align with the 1600 scale, but questions are weighted to reflect question difficulty. For each of the two main sections (math and verbal) all students get the same first module what they get for the second module depends on their performance on the first one. Even word problems are less wordy!Ĭalculator use permitted throughout built-in on-screen Desmos calculator provided.įewer questions, shorter test duration, more time per problem Shorter and more straightforward questions. Digital SAT Math Section HighlightsĮlimination of set-based questions. Though some of the information below applies to the new Digital SAT overall, I will primarily focus on changes to the SAT math section. Along with this move away from paper tests, the Digital SAT will look different in several other important ways. Last year, the College Board made a big announcement: the SAT is going digital with a shorter and adaptive test that will be administered entirely on a computer (or tablet).
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Software Resources: NUCLEO-F446RE comes bundled with a comprehensive software library, which includes software examples and a Hardware Abstraction Layer (HAL). USB Re-enumeration: The board offers USB re-enumeration capability, providing access to various USB interfaces, including virtual COM ports, storage, and debugging connections. It also comes with ST Morpho headers for additional expansion possibilities, facilitating the use of various add-on boards and shields. Integrated Debugger/Programmer: The NUCLEO-F446RE includes an integrated ST-LINK/V2-1 debugger and programmer, eliminating the need for a separate debugging tool and streamlining the development process.Įxtension Connectors: The board supports Arduino™ connectivity, enabling users to harness the extensive ecosystem of Arduino shields and accessories. User Interface Components: The board features several user interface components, including LEDs (LD1 for USB communication, LD2 for user status, and LD3 for power) and two buttons (one for user interaction and the other for reset). Power Supply Options: Users can power the board through different options, including USB VBUS, an external power source (ranging from 3.3V to 5V), or the ST-LINK USB interface. Microcontroller: The board is based on the STM32F446RET6 microcontroller, which is known for its performance and capabilities, making it suitable for various embedded applications. This development board offers users a flexible platform to explore new ideas, create prototypes, and experiment with different STM32 microcontroller options that cater to a variety of performance, power consumption, and feature combinations. The NUCLEO-F446RE is a versatile development board equipped with an STM32F446RET6 microcontroller from the STM32 Nucleo-64 series. Raspberry Pi Sound Cards and Audio Accessories.
The minimum COE is found by implementing the procedure with a gradient-based optimizer and using the wind turbine design cost and scaling model of NREL. The aero-elastic program FLEX5 computes loads based on design load cases from the IEC standards, which are then used to compute the deflections, strains, and buckling constraints. Blade stiffness and mass are computed using the NREL PreComp code based on the classical laminate theory, while blade natural frequencies are obtained from the NREL BModes code. Such a structural design code has been developed to minimize the cost of energy (COE) of the NREL 5MW wind-turbine blade. To perform more realistic large wind-turbine rotor designs, a structural design code was needed. Results demonstrate the methodology is effective for the aerodynamic design of wind-turbine rotors. As a verification case, the methodology is applied to design a model wind-turbine rotor and is compared in detail with the one designed with BEM. The approach is unique because most aerodynamic wind-turbine rotor design codes use the more common and inexpensive BEM technique. Designing a rotor using a computationally expensive MIRAS instead of an inexpensive BEM code represents a challenge, which is resolved by using the proposed surrogate-based approach. Following the development of MIRAS-FLEX, a surrogate optimization methodology using MIRAS alone has been developed for the aerodynamic design of wind-turbine rotors. MIRAS-FLEX combines the three-dimensional viscous-inviscid interactive method, MIRAS, with the dynamics model used in the aero-elastic code FLEX5. MIRAS-FLEX is an improvement on standard aero-elastic codes because it uses a more advanced aerodynamic model than BEM. A novel aeroelastic code has been developed called MIRAS-FLEX. Most aero-elastic codes use the blade element momentum (BEM) technique to model the rotor aerodynamics and a modal, multi-body, or finite-element approach to model the turbine structural dynamics. Aerodynamic and structural dynamic performance analysis of modern wind turbines are routinely carried out in the wind energy field using computational tools known as aero-elastic codes. It still shaved the same to me as the Ti and in the end I just preferred the Ti over SS. Efficiency was the same between them but if I was to have to pick a difference it would be I had to just use a lighter touch with the SS due to its weight was all. I have had both, Ti and SS Timeless razors and have noted that, to me, there really isn't much difference in how they shave. That doesn't mean that it feels less aggressive at all, its just how the Ti feels vs the SS on the face is all. What has been described by many, including myself, is the Ti has a "softer face feel" than the SS. Its worked great for me and completely cured any type of RAD I had and now and as I said above, it the only razor I own or will ever need to own!! The OC side is really great for that 1st pass WTG or XTG to get just a little more removed during that pass and the SB is great for the final or ATG pass. I would suggest whichever blade gap you go with you might think of going as I have and as Mark suggested previously and that would be with the SB/OC combo because from past descriptions from people, the SC shaves very similar to the SB so it would basically be the same shave either side. I'm all about simplicity and what works so I don't have to think about anything but a great shave each time out. I use the OC for the 1st pass and the SB for the 2nd. I have only 1 razor in my cabinet and that's a Ti95DC SB/OC and I shave every other day, usual 2 pass BBS, don't have to worry about changing my technique to accommodate a different razor so I get exactly what I expect every shave that I do. driving at high speed down serpentines in Italy in a Ferrari.Click to expand.What has been described by many, including myself, is the Ti has a "softer face feel" than the SS. It's like silently cruising with a Tesla on autopilot vs. When it comes to mild razors, the BBS A would be my personal pick over all razors mentioned. It's probably good for thicker beards, but when it comes to efficiency I would rather take the quite similar to the BBS series "Wunderbar", when it comes to safe, smooth, still very efficient the "A". This one can cause injury if you don't take care, but doesn't give much better feedback. The BBS "AS", which I also own (I had an ordeal with customs.), is more aggressive, on Razorock's scale of aggression quite high. You can buff with the razor without danger of anything happening. The blade is very tight in the cap and gives only ATG some feedback. The BBS "A" is still not aggressive, but very thorough and gives a very good shave. 72 with a solid bar, I think there is a better alternative from Razorock: the Henson nailed the concept of mild razor.įor the Lupo. In terms of quality, machining, the whole concept. The Henson handle is very nice, the pattern gives the razor very good grip. The Henson is so guided, so "you don't feel anything", if you like that. If you are looking for a light, very mild razor that is still extremely efficient, congratulations, you will most likely ADORE the Henson!īut I personally prefer the Lupo and like it a lot more. The Lupo is with both sides a lot more aggressive. It shaves extremely well, and very silently. The Henson is so mild, even the "Medium" version barely has any. The Lupo is stainless steel, the Henson lighter Aluminum. ET/PT on NBC.Will all future episodes that leap back more than 35 years use the same basic formula of “studio backlot dressed slightly differently + theater marquee + #1 hit playing on a passing radio”? Probably. Quantum Leap airs on Wednesdays at 8 p.m. And so yeah, we're thrilled that the audience is that engaged." I love to talk about what possibly comes next in the shows that I follow. It's not what we're doing, but it's just a really nice take.' I think to have an audience that's that engaged is creating a version of their show. I've sent Dean a few, being like, 'This is a good idea. Some of them are absolutely wrong, but really good. "I've seen so many really great takes on who Eliza can be, and what is that character. "That's part of the fun of a show like this, is we're trying to create these emotional mysteries on top of actual mysteries," Gero explained. This season, even before the "sacrifice engine" idea was queued up, fans seemed to be speculating furiously about the show, and both Gero and Georgaris are thrilled to see it. Showrunner Martin Gero seems to believe that making stories that feel true to the tone of Quantum Leap is at least as important as building on big "lore" ideas. I think that's the other half of that conversation, and it felt true to Magic. With a lot of strife and depressing things in the world, we still believe that fundamentally, if given a chance to make the world a better place, more people are going to raise their hand and say, 'Let's do it,' than not. "I think in a way, it's our mission statement, about where we are as people right now. "People focus on the /what if sacrifice is basically the price of leaping?,' but to me, the real beauty of that conversation is the next exchange, where Magic says, 'I think even if you know that going in, I think there are a lot of people who would step into that chamber,' and Tom's response being, 'Well, that's the message we need to get out.,'" Georgaris explained. If Sam Beckett and Ben Song are our heroes, doesn't it stand to reason that they might be willing to make those sacrifices if they knew how much good they were going to do as a result? The producers also want to make the audience ask themselves some hard questions. He isn't saying he's right, but he's suggesting something that makes sense to him, given what little everyone knows about how the leaps work. That is the philosophy that drives Tom Westfall to suggest this notion that maybe there's no return ticket. If he didn't come home, doesn't that mean he chose to continue his never-ending battle to make the world a better place? After all, by the end of the show, it seemed as though Sam was able to control his leaps. In the years since, fans have debated whether that's meant to be a terribly sad ending, or an uplifting one. Sam Beckett (Scott Bakula) never made it home. Ben Song (Raymond Lee) might never be able to come back, just like Sam Beckett wasn't.Īt the end of the original Quantum Leap, a title card popped up saying that Dr. His idea, immediately quotable and something that sent a chill down the spines of some audience members, is that the concept of sacrifice is what really drives the leaps through time. In the episode, Tom Westfall (Peter Gadiot) suggests that once someone leaps, there is no way to bring them back. It's a theory, not necessarily anything set in stone, but since the same can be said about nearly every big idea that the show deals with, it seemed worth paying attention to. On the latest episode of Quantum Leap, a new concept is introduced into the show's lore. It’s always embarrassing to receive a call from your boss while you are still in bed. Be sure to check your actual call time rather than the crew call, as it may be different.
Will Smith Apologizes to Chris Rock For Slapping Incident Will Smith, Jada Pinkett Smith and Sheree Zampino Pay Tribute to Son Trey on His 30th Birthday We also apologize to our nominees, guests and viewers for what transpired during what should have been a celebratory event,” the Academy wrote. Rock, we apologize to you for what you experienced on our stage and thank you for your resilience in that moment. Smith's actions at the 94th Oscars were a deeply shocking, traumatic event to witness in-person and on television. Will ultimately did not leave the event and the Academy noted that they “could have handled the situation differently.” According to TMZ, President of the Academy David Rubin and CEO Dawn Hudson were “furious” following the altercation and had “heated conversations” backstage with Will’s reps. But in an open letter, the Academy revealed that they had actually asked Will to leave but he refused. In the days that followed the slapping incident, the Academy faced backlash for allowing Will to remain at the ceremony despite his violent outburst. Will Smith Reportedly Refused to Leave The Oscars Will was later awarded Best Actor for his role in “King Richard” and during his speech he apologized to the Academy and his fellow nominees, but not Chris. Will came to Jada’s defense and walked on stage to shockingly slap Chris before returning to his seat and yelling for Chris to keep his wife’s name “out your f-king mouth.”Ĭhris eventually regained his composure and went on to present the award. Jane,” seemingly referencing her shaved head. In one joke, he referred to Jada as “G.I. During the show, comedian Chris Rock took to the stage to present an award and cracked several jokes before naming the nominees. On March 27, 2022, Will attended the Oscars with his wife Jada Pinkett Smith. Will Smith Slaps Chris Rock During Oscars Ceremony Tonight we are delighted to celebrate our 94th Academy Awards winners, who deserve this moment of recognition from their peers and movie lovers around the world.Emancipation Producer Apologizes for Bringing Slave Photo That Inspired Film on Red Carpet The Academy does not condone violence of any form. If the involved party desires a police report at a later date, LAPD will be available to complete an investigative report.” The individual involved has declined to file a police report. The incident involved one individual slapping another. The LAPD added at the time: “LAPD investigative entities are aware of an incident between two individuals during the Academy Awards program. In a statement to Variety after the Oscars telecast, the Los Angeles Police Department confirmed that Rock had declined to file a police report. It’s about being able to shine a light on all of the people.” This is a beautiful moment and I’m not crying for winning an award. I want to apologize to all my fellow nominees. Smith won best actor for “King Richard” following the incident and issued an apology in a tearful acceptance speech. The actor said, “I want to apologize to the Academy. Smith then returned to his seat and shouted, “Keep my wife’s name out of your fucking mouth!” Smith reacted to the joke by going up on stage and slapping Rock. However, Pinkett Smith has been open about her struggles with the disease of alopecia, an autoimmune disease that causes hair loss. Jane” in which Demi Moore appears with a shaved head. Rock was referencing the 1997 movie “G.I. While presenting best documentary feature, Rock joked about Pinkett Smith starring in “G.I. Tonight we are delighted to celebrate our 94th Academy Awards winners, who deserve this moment of recognition from their peers and movie lovers around the world.” The Academy said in a statement: “The Academy does not condone violence of any form. Smith took to the stage during the 2022 Oscars and slapped Rock after the comedian made a joke about his wife, actor Jada Pinkett Smith, while Rock presented the documentary feature category. The Academy of Motion Picture Arts and Sciences has issued a statement on the Will Smith– Chris Rock slap that shocked the 94th Academy Awards. The enhanced density of holes changes the conductivity of the channel region (see the description of MOSFET transistors for more details.) Or viewed differently, the electrons on the floating gate change the value of the gate voltage needed to achieve some desired channel conductivity. For example, as shown on the right in the figure panel above, when electrons are present on the floating gate, they attract the holes in the p-type channel and body to the channel region right below the floating gate. Therefore, when extra electrons are present (or absent) from the floating gate, their presence and thus the electric fields and forces they create modify the action of the gate voltage onto the channel. Notice that the floating gate is placed between the control gate and the channel. P-doped floating gate transistor: no control gate voltage but electrons are placed on the floating gate this attracts the holes P-doped floating gate transistor: no control gate voltage and no electrons on the floating gate But having information is not the same as being able to read it out… So how is this accomplished? This means that one can use the charge state of the floating gate as an information bit (a zero or one): presence or absence of electrons on the floating gate is the binary bit. What this means is that electrons that are put onto the floating gate can stay there for a long time, typically years for normal operating conditions, as there is no direct path for them to flow away from the floating gate (see below for why they leave at all). But the transistor is operated (mostly) in the standard way in that source-drain current is monitored and it is controlled by the control gate voltage. The floating gate is an isolated conducting island: it is surrounded on all sides by oxide insulator. The original gate (topmost) is now called the control gate. The only difference with the standard MOSFET is the addition of a new gate, called the floating gate, between the original gate and the channel. To the right is a schematic image of a MOSFET floating gate transistor. This is where the floating gate transistor comes in!įloating gate transistor Floating gate transistor schematic (from ) Therefore, as such, the MOSFET can not be used to store information permanently (or semipermanently) without continuous power. If the gate voltage is removed, the transistor forgets that it was applied. Most critically, the MOSFET device is volatile: it forgets its state if power is removed and the gate voltage is not maintained. Physically, the electric field created by the gate repels or attracts the conducting charges in the channel: hence the “field-effect” part of the MOSFET name. make it conduct well or poorly an thus make for a large or small current from source to drain). By changing the voltage on the gate, one can change the conductivity of the channel and thus turn the transistor on or off (i.e. But how much current flows is controlled by the voltage one applies to the gate. In brief, the current flows between the source and drain through the channel. You can see a schematic in the figure on the right. You should read the long section on MOSFET transistors to fully appreciate how the normal transistor works. This is the physical basis for representing information (1 or 0) with flash memory. Since the conductivity can be assessed by putting a voltage across the transistor and seeing how much current goes through it as a result (Ohm’s law), this means the presence or absence of electrons on the floating gate can be determined. Before we get into the details, this means that the information is stored in electrical form: the presence or absence of electrons on a certain part of the transistor (the floating gate) change its conducting properties. Flash memory systems store information as one and zeros on arrays of floating gate transistors. First, most characteristics of organisms are inherited, or passed from parent to offspring. Natural selection, Darwin argued, was an inevitable outcome of three principles that operated in nature. Over time, only long-necked tortoises would be present in the population. Consequently, long-necked tortoises would be more likely to be reproductively successful and pass the long-necked trait to their offspring. In times of drought when fewer leaves would be available, those that could reach more leaves had a better chance to eat and survive than those that couldn’t reach the food source. These tortoises were “selected” because they could reach more leaves and access more food than those with short necks. Natural selection, also known as “survival of the fittest,” is the process by which organisms that are better adapted to their environment survive and pass those adaptations onto their offspring this leads to evolutionary change.įor example, a population of giant tortoises found in the Galapagos Archipelago was observed by Darwin to have longer necks than those that lived on other islands with dry lowlands. Darwin called this mechanism natural selection. Wallace and Darwin both observed similar patterns in other organisms and they independently developed the same explanation for how and why such changes could take place. For example, seed-eating finches had stronger, thicker beaks for breaking seeds, and insect-eating finches had spear-like beaks for stabbing their prey. Upon further study, he realized that the varied beaks of each finch helped the birds acquire a specific type of food. Darwin imagined that the island species might be species modified from one of the original mainland species. He observed that these finches closely resembled another finch species on the mainland of South America. The species on the islands had a graded series of beak sizes and shapes with very small differences between the most similar. For example, the ground finches inhabiting the Galápagos Islands comprised several species with a unique beak shape (Figure 1). On these islands, Darwin observed species of organisms on different islands that were clearly similar, yet had distinct differences. Darwin’s journey, like Wallace’s later journeys to the Malay Archipelago, included stops at several island chains, the last being the Galápagos Islands west of Ecuador. Wallace traveled to Brazil to collect insects in the Amazon rainforest from 1848 to 1852 and to the Malay Archipelago from 1854 to 1862. Beagle, including stops in South America, Australia, and the southern tip of Africa. From 1831 to 1836, Darwin traveled around the world on H.M.S. Importantly, each naturalist spent time exploring the natural world on expeditions to the tropics. In the mid-nineteenth century, the actual mechanism for evolution was independently conceived of and described by two naturalists: Charles Darwin and Alfred Russel Wallace. He postulated that the beak of an ancestral species had adapted over time to equip the finches to acquire different food sources. Darwin observed that beak shape varies among finch species. In this outcome we’ll learn more about his work and how it helped develop the theory of evolution.ĭarwin and Descent with Modification Figure 1. Darwin’s scientific discovery is the unifying theory of the life sciences, explaining the diversity of life. However, many favored competing explanations and it was not until the emergence of the modern evolutionary synthesis from the 1930s to the 1950s that a broad consensus developed in which natural selection was the basic mechanism of evolution. By the 1870s, the scientific community and much of the general public had accepted evolution as a fact. He established that all species of life have descended over time from common ancestors and, in a joint publication with Alfred Russel Wallace, introduced his scientific theory that this branching pattern of evolution resulted from a process that he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding.ĭarwin published his theory of evolution with compelling evidence in his 1859 book On the Origin of Species, overcoming scientific rejection of earlier concepts of transmutation of species. What you’ll learn to do: Describe the work of Charles Darwin in the Galapagos Islands, especially his discovery of natural selection in finch populationsĬharles Robert Darwin, was an English naturalist, geologist and biologist, best known for his contributions to the science of evolution. |
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