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Digah House Company's Computer Paper Case

Digah House Company's Computer Paper Case

2021-11-20
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Guangzhou House Empire Construction&Furnishing Co.,Ltd designs, produces, and sells computer paper case. The raw materials of manufacturing the product are purchased from our long-term raw materials suppliers and are well-selected, totally ensuring the initial quality of each part of the product. Thanks to the effort of our industrious and creative designers, it is appealing in its appearance. What's more, our production procedures from raw materials input to products finished are strictly supervised, therefore the quality of the product can be totally guaranteed.Trade shows and exhibitions are excellent ways to promote a brand. At the exhibition, we actively network with other industry members and grow our customer base. Before the exhibition, we carefully research our target customers to find out the best way to showcase our products and our brand culture. In the exhibition, we have our professionals in the booth to answer customers' questions and give a detailed demonstration of our products and our services. We have successfully left customers the image of 'professional, attentive, enthusiastic'. Our brand, Digah Company, is gradually increasing its awareness in the market.In addition to the high-quality computer paper case, we also provide personalized service to give customers a better purchasing experience. Whether you need samples for testing or want to customize to products, our service team and technical experts will get you covered.
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Modelling Lunar Motion in Python Closed
Modelling Lunar Motion in Python Closed
Well, just to be clear: I haven't looked at your code, I'm not responding to that. I'm submitting in the answer section because I have a general comment.The treatment by Richard Fitzpatrick that you link to is an exercise in how to go about obtaining an analytic solution for the case of the the Sun-Earth-Moon three body problem. In the general case of three bodies with mutual interactions there is no exhaustive solution, but in some cases some well chosen approximations can make it feasible to do the computations with pen and paper. As we know: for centuries this is what astronomers did in order to do astronomy: you find ways to bring the calculations within reach of being handled with pen and paper.These approaches are not used when electronic computers are used to calculate celestial motion. On an electronic computer you use Newton's law of gravity in its direct form: $$ F fracGm_1 m_2r^2 $$(Wich in the case of the Sun, Earth, Moon system of course means that you process three interactions: Sun-Earth, Sun-Moon, Earth-Moon.)To my knowledge that is how on electronic computers all simulations of celestial motion are done.My suggestion: use cartesian coordinates, and use a non-rotating coordinate system. If you also want to plot the motion with respect to some rotating coordinate system then you can apply that coordinate transformation to the result of the numerical integration. (Again, I suppose that in past centuries in order to bring the calculations within reach of pen and paper it was in some circumstances efficient to express the equation of motion and the intended coordinate transformation in a combined formula, and proceed from there.) Let me add some general considerations.Trade-offsWith todays computing power: for the purpose of processing a three body case your computational power is effectively limitless. Only when you want to to model, say, an entire galaxy you need a supercomputer.In the treatment by Fitzpatrick there are approximations, he mentions neglecting higher order terms. Those approximations introduce error. Negligable in the short run, but over time you get accumulation of error.If the only expression you evaluate is Newton's law in bare form then there is no approximation in the formula's themselves. Then only one source of error remains, the precision level of the numerical integration. You have a trade-off there. Higher precision level may limit you to, say, computing only a couple of thousand years of Moon motion. Lower precision level may allow you to compute millions of years, but probably by that time accumulation of error has made the end state meaningless.(Also, over time the distance between the Earth and the Moon is increasing. There are tidal effects that result in the Earth slowing down and the Moon being pulled to a higher orbit. So a long term model would have include that gravitational interaction.)So it's good to be aware of the trade-offs that apply in your case, and to try and make sensible decisions.One important trade-off, I think: the simpler the expressions that the numerical integration evaluates, the more debuggable the simulation is. Newton's law of gravity is a simple, transparent expression.Displaying the resultsAgain, since your computing power is effectively limitless you can display the results of the computation in any way you want. For instance, you can choose to set up a side by side display of the motion with respect to some particular inertial coordinate system, and next to it the motion with respect to some particular rotating coordinate system. The required coordinate transformation for that is trivial.That is, given your limitless computing power the decision on how to display the results is independent from the decision of how to execute the numerical integration itself.There is no such thing as: "I want to visualize the results as motion with respect to this rotating coordinate system so I must do all the computation in that rotating coordinate system." Obviously the two are independent.• Related QuestionsQuantum version of the Galton BoardYou might like this 110-page paper by me and Alex Arkhipov, which is all about a quantum bosonic analogue of Galton's board (we even use the same graphic you did -- see Section 1.1!). In particular, we gave strong evidence that such a board (with an arbitrary configuration of "pegs," and with multiple entry points for the "balls") is exponentially hard even to simulate using a classical computer. This suggests that such a quantum Galton's board (which is now called a "BosonSampler") could be used as a rudimentary, proof-of-principle quantum computer. And indeed, within the last year the first BosonSampling experiments were done in linear optics (see here), although so far only with 3 photons.To make our argument for computational hardness work, we needed two crucial assumptions:(1) The "balls" have to be indistinguishable particles. If they're distinguishable, then the distribution for any one individual ball could still exhibit interference fringes. But once you knew the probability distribution for one ball, the distribution for n balls would just be obtained by sampling from that distribution n times independently -- thereby producing "conventional, classical" Law of Large Numbers behavior. By contrast, identical quantum particles can famously become "correlated" even if they've never explicitly interacted, as seen for example in the Hong-Ou-Mandel dip.(2) The "balls" have to be bosons. In that case, their transition amplitudes are given by nxn matrix permanents, the calculation of which is a famous hard problem in computer science. By contrast, if the balls are fermions, then their transition amplitudes are given by nxn determinants, which are easy to calculate classically.Of course, there's also a "narrower" way to interpret your question, which might be closer to what you were actually asking about! Namely, rather than an "arbitrary" Galton-like board, we could consider the specific geometry from the figure: so let's say, a network of 50/50 interferometers arranged in a diamond pattern in the plane, with a single source of particles at the top. And we could then calculate (or, if we're lazier, numerically simulate...) the particular probability distribution over n-particle outcomes that that configuration leads to, under two different assumptions:(1) That the particles are distinguishable. (In this case, of course, the problem reduces to working out the distribution for a single particle.)(2) That the particles are indistinguishable bosons.(Note that a third case, that the particles are indistinguishable fermions, never arises -- for by the Pauli exclusion principle, n identical fermions couldn't even "fit" simultaneously through the single source at the top.)If I have some time later, I might work out the answers and post them here -- but in the meantime, anyone else should feel free to do so first.Addendum: OK, so let's consider the case of a single quantum particle passing through a "diamond-shaped" network of 50/50 interferometers. In that case, the probability distribution after n steps will be determined, not by the nth row of Pascal's triangle (as in the classical case), but by the nth row of what we might call the "interferometric Pascal's triangle." The latter is defined as follows: let A(i,j) be the jth entry in row i. Then:A(0,0)1A(0,j)0 for all j0For ij positive and odd: A(i,j)A(i-1,j)A(i-1,j1)For ij positive and even: A(i,j)A(i-1,j-1)-A(i-1,j)I'm almost certain that the result will asymptotically approximate the standard behavior for the "quantum random walk on the line": see here or here for good overviews. In particular, the distribution will not look anything like the Gaussian one: instead it should be nearly uniform, except with a bunch of oscillating peaks near the two edges, with the size of the peaks getting damped as you move closer to the center. (See the linked papers for example images.)A slight caveat is that usual analyses of quantum random walks assume there's a "coin" (i.e., a spin-1/2 internal degree of freedom), whereas I've used a staggered arrangement of interferometers to remove the need for the coin. I don't think that affects the walk's qualitative behavior, but I don't have a proof
China Urges Sweden to Heed Concern Over Tourists Ejected From Hotel
China Urges Sweden to Heed Concern Over Tourists Ejected From Hotel
BEIJING (Reuters) - China on Monday urged Sweden to take seriously its concern over the removal by police of three Chinese citizens from a hotel in Stockholm, after the incident sparked uproar on Chinese social media and an unusually strong response from Beijing.Police forcibly ejected a Chinese man surnamed Zeng and his parents from a hotel in Stockholm in the early hours of Sept. 2 after they arrived a day before their booking and were asked to leave, according to Chinese state media.China has lodged representations with Sweden about the incident and has asked for an immediate response to the complaint, China's foreign ministry spokesman Geng Shuang told a regular briefing."We again urge Sweden to take China's concerns seriously, and to take practical measures to protect the security and legitimate interests of Chinese tourists," he said.Sweden had not yet responded to China's requests for an update on the investigation, which was not in accord with diplomatic convention, Geng added.Swedish prosecutor Mats Ericsson told the Aftonbladet daily that no preliminary investigation had been initiated because "we made the assessment that no crime on the part of the police had been committed".A Swedish government source, who declined to be identified, said Sweden believed that China was exaggerating the incident because Sweden had spoken out over the case of a Swedish citizen detained in China."We think it's related to Gui Minhai," said the Swedish government source, referring to a Swedish, Hong Kong-based bookseller who has been held by Chinese authorities since 2015 after he was abducted in Thailand."Sweden and the EU have repeatedly called for his release and Chinese authorities don't like that." An official newspaper of the ruling Chinese Communist Party, the People's Daily Overseas Edition, earlier accused Sweden of hypocrisy."Some Western nations, including Sweden, always praise themselves for their human rights, freedom and equality. But when it comes to China's people and issues, they seem to often show a different face, a different set of standards." A video clip of the tourists wailing and crying as they sat on the ground outside the hotel door has drawn mixed reactions from Chinese internet users.Some blamed the Swedish police for mistreating the tourists, but many lambasted the travellers, saying their behaviour was unseemly and embarrassing."I really find these types of people too infuriating. Could they please not make a spectacle of themselves and give the motherland some face?" said one user wrote on the Weibo social media platform.
How can I track my Steel Door Series?
How can I track my Steel Door Series?
Once your Steel Door Series has been shipped out of our factory, you'll receive a tracking number given by the logistics companies to us. You can use the number to follow your package. We promise on-time delivery to every customer though sometimes holidays or severe weather conditions may happen. We do our best to guarantee that your goods will be delivered to you in a fast and safe way. We recommend you to keep a close eye on your order's tracking number. If you're having trouble with your tracking information, please don't hesitate to reach out to our Customer Service Center. Guangzhou House Empery Co.,Ltd is a specialist supplier of wooden wardrobe. We have been offering clients a reliable and efficient manufacturing service for years. aluminium door series manufactured by DIGAH include multiple types. And the products shown below belong to this type. The manufacturing process of DIGAH aluminium folding door includes the following stages: garment market trend research, construction design, sampling, pattern cutting, sewing, and workmanship assessment. DIGAH: Bring comfort and fashion to you. People can be assured that this product will stand up to moisture and harsh weather conditions, thus can be used for a long time. our company: Life could be more Delicate.Our company takes the environmental compatibility of our products very seriously. The approach taken by the company thus involves the conservation of natural resources, and ecological considerations are an important element of any portfolio expansion.
High-End Fashion with a Timeless Appeal
High-End Fashion with a Timeless Appeal
Chanel Perfection Lumiere, is a clever selection for a extra comprehensive coverage. Clinique Even extra ideal, Continuos coverage or Anti blemish suggestions liquid all of those are very comprehensive coverage only relies upon what reward you desire. YSL teint face up to, yet i've got heard mixed comments. Lancome Teint Idole extremely 24hr, this worked for me nicely. wish those innovations assist you come back to a decision1. Are Sako rifles high end rifles?My son's buddy's dad has a Sako in .308. He shot a prairie dog at 830 yds, measured with a range finder, with his. Sakos are good guns but just not very popular2. can this laptop play high end games like crysis?like the last person said this laptop just isnt going to cut it, if your 'an intense gamer' than you would know the only way to truely game is with a custom built desktop computer fine tuned to your needs3. High-end 6.5" speakers, Rockford Power or Infinity Kappa?Infinity Kappa 6.54. What are some really good high end foundations?dior has some pretty good foundations :)5. Is this a good PC for high-end games?Everythings okay but buy two xfx geforce gtx 495 and sli them by putting them together. You will also be needing a good power supply and a very very good CPU case. Buy my suggested and your mentioned stuff and then you can even run Crysis2 in max.6. Is it hard to find high end clothing at thrift stores?I like to shop at buffalo exchange. I got brand new doc martens for only $40!7. Wondering if this would be a compatable and high end gaming rig.?no problem, except that i feel really jealous of that config, coz its betta than mine... one opinion: you should get a 64bit OS. this is because with a 64bit os, you can take full advantage of the RAM (if you have more than 4GB, which i dont know as u did not mention). Also, some applications such as Crysis Sandbox 2 only officially supports 64 bit os.8. Do you prefer drugstore or high end makeup?Drugstore, its cheap and works great for me9. How do I promote a high end retail store?Media Buying: Find blogs that talk about your vertical in your market and talk to them to create buzz about your store.Interviews in fashion tv shows: Promote the experience that the buyer will get when he goes to the store. Do not promote a business or a store. Promote the experience, the felling, the cach. Find a brand ambassador: Find someone in Singapore who is a recognized fashionist. And associate to make him your brand ambassador. Let him talk to their clients/friends about how great you will be and how much they will like the items that you will sell. Make a fashion show: Make a fashion show with the items that you will sell. This [again] will get brand awareness10. Desktop or laptop for high end gaming?Desktop is the only way to go if you truly are a serious "gamer" ... laptops have a continual problem with overheating especially if you are asking them to perform at their top level for lengthy periods (this is what was causing the Dell laptop batteries to overheat and actually catch fire) ... Ram is another issue ... you will fit more ram and fir it more easily in a desktop if you need to upgrade later . .. and the graphics cards available in a desktop run absolute rings around any laptop11. Which are the best cryptocurrency tokens to buy now and hold them for a minimum of 2 years?Hello,When you say tokens, are you referring to ICO tokens or coins you will be buying from an exchange, Bitcoin for example.If it is ICO tokens then they should gain in value, depending on how many exchanges the ICO company has registered them on and how big are the exchanges.Obviously the more exchanges your token is registered on, the more exposure it will gain, the bigger the exchange, the more exposure it will gain also, as high end investors will be attracted to a token that they were not aware of at the ICO level. If you are referring to actually buying from an exchange such as Coinbase for example, then you should really look at the top 5-7 coins, in my opinion, that is.Maybe buy into 3, monitor them for a while, if you see a weak performer, trade it in and transfer the funds to the performing coins or buy into another coin.I suppose watching the charts and movements will show you an attractive coin to invest in. However, try not to become a chart watching addict, it's easily done, I have been there, done that at the start of my Bitcoin investment journey. :-)Golden rule: "Never invest more than you can afford to lose".I wish you luck, keep a strong hand and do not get sucked into selling out if you see a minor % drop. We saw some pretty drastic % dips in 2017.China only had to sneeze and we were witnessing 15% - 20% dips, however,we always bounced back, usually to a higher position than we were at when the news was released.We ended the year on a high noe.Some say it was manipulated, so what, we enjoyed the massive profits, I took back my initial investment and a chunk of $$$$ vacation money. Nice Christmas break. :-)I hope they manipulate it again, I liked that beach villa we had for a couple of weeks.Thanks guys!!!!Anyway, best of luck to you, all will be good.Cheers
Report: Dog Charged Police, Prompting Gunfire in Wrong Home
Report: Dog Charged Police, Prompting Gunfire in Wrong Home
ATLANTA - A dog charged police officers who entered the wrong Atlanta home searching for a burglar, prompting gunfire that seriously wounded an officer, injured the homeowner and killed the animal, according to a police report released Thursday. Three DeKalb County police officers entered the rear of a house Monday around 7:30 p.m. after a 911 caller reported seeing a possible burglar, according to police and the caller. However, the officers lacked an exact address and entered the wrong home, leading to a dangerous confrontation.Officer Benjamin Penrosse, who was not present at the shooting, wrote that homeowner Christopher McKinley, 36, "burst out of a closed door" with a pit bull that charged the officers. The report said multiple people opened fire. Georgia Bureau of Investigation officials have said that police killed the dog and shot McKinley in the leg, and that Officer Travis Jones was "likely' struck by police gunfire, causing a serious wound to his hip. Trending News Biden Leads CBS News Poll Controversial Police Video Massive Power Outage Hong Kong Protesters No officials have suggested that the homeowner, McKinley, was carrying a gun. Officers Quhanna Lloyd, left, Travis Jones, center, and Timothy Harden CBS affiliate WGCL The report does not make clear Penrosse's connection to the case or whether he wrote the report based on the accounts of officers who were present that night.The Associated Press requested a copy of the police report using Georgia's open records laws. DeKalb police declined to publicly release other documents related to the ongoing investigation into the shooting. McKinley did not return messages seeking comment.It was not clear Thursday how much weight to give the initial report. DeKalb police turned over the investigation to the Georgia Bureau of Investigation shortly after the shooting. GBI spokesman Scott Dutton said there is no evidence that McKinley or anyone else in the house did anything illegal. DeKalb County Police Chief Cedric Alexander has acknowledged the officers entered the wrong home.And some details in the report were inconsistent with other accounts. The officer misspelled the homeowner's name. Contrary to the police report, one neighbor said McKinley owned a boxer, not a pit bull.The personnel files for the three officers involved in the shooting mention only one instance of discipline over use of force. Officer Timothy Harden was ordered suspended without pay for eight hours in May as punishment for using unnecessary force during an arrest on Nov. 6, 2014.Interim Police Chief James Conroy wrote that Harden was observed during a traffic stop pulling up a suspect from the ground and pushing him into the rear of Harden's patrol vehicle. "You then opened the back door and pushed the suspect into the backseat, causing him to hit his head on the upper door frame," Conroy wrote. "That action was unnecessary."Harden could not be reached for comment Thursday. It was not immediately clear who Harden had arrested or whether he appealed the punishment. Otherwise, Harden's superiors rated him as exceeding police department standards in his last annual review. He received several commendations since joining the department in 2010, including one in 2012 for helping catch a burglary suspect who was also wanted on murder charges.All three officers - identified by the GBI as Harden, Travis Jones and Quhanna Lloyd - have been placed on administrative leave.
Principle Analysis of IC Driven Automotive Door Automation
Principle Analysis of IC Driven Automotive Door Automation
In recent years, automobile electrification is the general trend. Automobile electrification not only introduces pure electric vehicles, but also constantly replaces traditional mechanical parts and mechanical relays with electronic control technology, or introduces new functions in some cases.The large-scale electrification of vehicles is promoting the development of automatic driving to a higher level. In the medium and long term, many vehicles may be regarded as "driverless taxis". According to this new car driving concept, all functions in the door will be automated, such as intelligent automatic door opening and anti-collision detection. These automation systems will be able to detect that pedestrians or cyclists are approaching the car and automatically control the door opening operation to avoid the risk of collision. In the future, advanced sensors will be installed in the door to detect obstacles outside the door and prevent the door from being damaged.The emergence of the general trend is inseparable from the paving of special semiconductor chips. These chips need to follow the advanced power management concept to drive high-power DC motors from milliwatt loads such as LEDs to instantaneous dissipated power that can easily reach 200W. In addition, automotive electronic modules also need to be equipped with highly standardized communication interfaces, such as can and Lin physical layers.How to determine a correct system architecture to realize new functions at a reasonable cost without affecting quality and performance is a major challenge for automobile manufacturers. With the increasing cost and complexity of software and hardware development, it becomes more and more difficult to keep up with the performance and functional requirements of OEM manufacturers. In addition, OEM manufacturers also require to deploy cost-effective and scalable solutions, expand from low-end models to high-end vehicles, and share development costs on different platforms and models.The door area electronic control module (Figure 1) is a familiar automobile system benefiting from the scalable driving method. This application concept uses one IC to drive multiple loads in the door area (door lock motor, adjustable folding rearview mirror, defroster, window lifting motor, led, incandescent lamp and other lighting functions). The expandable driver, package and software are all compatible, and meet the diversified requirements of door electronic control module. It is a typical feature of door area actuator.Figure 1:In the past 10 years, automotive semiconductor manufacturers have developed several door actuator driver chips. With the increasing number of automotive electrical loads, new functions have been added to these products, and the packaging, chip manufacturing technology and IP core have been optimized. In the electronic components in the door area, in addition to the drive chip (Fig. 2), there is also a power management IC to provide stronger system power for the electronic control unit, including various standby modes and communication layers (mainly Lin and / or HS can). The power management chip usually integrates two low-voltage differential regulators to supply power to the system microcontroller and peripheral loads (peripherals such as sensors). It also includes enhanced system standby function and settable local and remote wake-up functions.Figure 2:The door actuator driver and power management chip adopt STMicroelectronics, for which BCD (bipolar, CMOS and DMOS) semiconductor manufacturing technology specially optimized is applied. The driver chip of door actuator adopts 0.7 μ M BCD technology, the power management chip adopts 0.57 μ M BCD technology.In order to comply with the development trend of new automotive technology, automotive semiconductor devices must efficiently and safely control more electrical loads, minimize static current, and adopt high integration solutions to reduce the number of components, reduce the space of circuit board and reduce the weight of products, so as to greatly simplify the design.STMicroelectronics proprietary advanced 0.16 μ M bcd8s is the key technology to realize the unique high integration monolithic solution in the market (Figure 3), which can meet the technical requirements of applications such as power management, fault protection and door load drive. This technology can also improve energy efficiency and computing power, increase the junction temperature of the chip to 175 ° C, meet the standard junction temperature strictly stipulated by automobile OEM manufacturers, and solve the challenging thermal management problems brought by monolithic integrated power management and actuator driver.Figure 3:Italy France semiconductor's innovative l99dz100g / GP front door controller chip and l99dz120 rear door controller chip help designers save space and improve the reliability and energy efficiency of door control module.The previous door area ASSP (special standard product) solution required two chips: one 12mm × 12mm (tqfp64) door actuator driver and a 10mm x 10mm (powerso-36) power management chip, while the door area control monolithic solution of STMicroelectronics only needs an lqfp64 with the same packaging area as tqfp64 (Fig. 4), which is very important for the miniaturization of PCB circuit board and can meet more stringent space requirements. In addition to using the new BCD technology to reduce the bare chip size, it also reduces the packaging area through the new innovative packaging structure, which not only reduces the door system IC, but also improves the output current peak and power density.Figure 4:The whole product software is compatible with each other, which also helps to simplify development and shorten product market time.Italy France semiconductor's proprietary bcd8s advanced automotive technology plays a key role in realizing this monolithic solution. The solution has a variety of functions, including built-in half bridge and high side driver up to 7.5A, which can meet the new requirements of door area applications. The solution also integrates high speed can (hs-can) and Lin 2.2A interface (SAE J 2602), control module and protection circuit. In addition to the standard features and functions, l99dz100gp also supports the selective wake-up of ISO 11898-6 hs-can standard, allowing the ECU with low frequency to enter the sleep mode, while maintaining the connection with the CAN bus to maximize the energy-saving effect.Both front door controllers have integrated MOSFET half bridge, which can drive up to five DC motors and an external H-bridge. In addition, the two chips also have eight LED drivers and two incandescent lamp drivers, a rearview mirror heater grid driver and a window electrochromic glass control module. Other features include external circuits (microcontrollers, sensors, etc.) voltage regulators, as well as related timers, watchdog, reset generator and protection functions. The rear door controller l99dz120 also has similar functions, such as power window lifting motor driver.Equipping the vehicle with more electronic systems and functions helps to increase the selling point of the vehicle, but more electronic configurations also improve the power requirements. Therefore, it is necessary to accurately analyze the power consumption of each system under various working conditions, especially for pure electric vehicles. Wasting power is equal to shortening the mileage; The more electrical components, the greater the leakage current, which is inevitable. Therefore, all automobile manufacturers attach great importance to products and / or technologies with low quiescent current and standby current. The maximum standby current budget of most ECUs is 100 μ A. Therefore, customers often say, "every micro safety is very important".Therefore, STMicroelectronics integrates an advanced power management module with multiple low quiescent current modes (standby / sleep, regular monitoring, special low current mode LDO regulator, timer, contact equipment power supply) on the new door area controller chip. In Vbat standby mode, quiescent current drops to 10 μ Below a, at 7 μ A-8 μ Section a is half of the topology of dual IC (door area drive IC power management IC). For door applications, the controller does not supply power to the microcontroller (MCU) until the voltage regulator is awakened through the physical layer of external contact equipment monitoring or communication interface (Lin, hs-can or hs-can supporting selective wake-up).The new door area controller of STMicroelectronics not only integrates the previous door area actuator driver chip and power management chip in one package, but also adds some new functions to better serve the new automobile development trend.In order to support the automatic led duty cycle compensation function, the new door area controller of STMicroelectronics implements a new IP module. The internal compensation algorithm uses the measured value of power supply voltage to correct the duty cycle of LED driver power level, so as to ensure that the LED can maintain uniform brightness when the ECU power supply voltage fluctuates. Developers can flexibly set the duty cycle compensation function according to different loads, and use different LEDs and series LEDs, so as to save the load of external microprocessors and minimize the data flow of SPI.The concept of thermal clustering is another new feature of the new controller. In case of short circuit and other events, this feature can disable the short-circuit output channel separately, and other output channels remain normal.In order to meet the requirements of safe operation of electric window, the new controller also implements a special IP core, which can make the window enter a safe state in case of system error and avoid out of control of window lifting action. According to the security requirements, there is a deep trench isolation layer between the IP core and the rest of the chip, which is another valuable feature of bcd8s technology. The self bias method enables the IP module to work normally when the battery is dead.L99dz100 series products support the most advanced door electronic applications at present. However, with the development of automotive technology, new demands will emerge in the future, such as driving more DC high-power motors. To this end, STMicroelectronics adopts a modular method to develop these chips, which can integrate more IP cores in the new configuration and upgrade and expand the door area control system. In addition to door applications, the new series of products will also be used in other automotive systems to drive loads in an optimal way. For example, the electric trunk lid module or sunroof has similar system requirements. In the future, dedicated ASSP will also enter this segment.
Third Quarterly Report of San'an Optoelectronics: Steady Growth of LED Chips
Third Quarterly Report of San'an Optoelectronics: Steady Growth of LED Chips
San'an optoelectronics released the third quarterly report of 2012: the operating revenue was 2.35 billion yuan, a year-on-year increase of 101%; The operating profit was 432 million yuan, a year-on-year increase of 26%; The net profit attributable to shareholders of listed companies was 667 million yuan, a year-on-year increase of 14%, corresponding to EPS of 0.46 yuan.Business analysis:The operating revenue maintained a rapid growth, and the LED street lamp was confirmed to be lower than expected: the company achieved a sales revenue of 980 million yuan in the third quarter, with a year-on-year increase of 118% and a month-on-month increase of 14%. The main reason for the further growth of sales in the third quarter was that the sales of concentrating photovoltaic products were about 230 million yuan, while the sales of LED chips were about 630 million yuan, basically maintaining a stable growth, The revenue recognition of LED street lamps is lower than expected, which slows down the profit growth.The significant change in gross profit margin in the third quarter was due to the change in product structure, and the gross profit margin of LED chips was stable: the company's gross profit margin in the third quarter was only 18.8%, a sharp decline of 14% compared with 32.8% in the first half of the year. The decline was mainly due to the change in product sales structure in the third quarter, in which the sales scale of LED street lamp products with high gross profit rate was about 50-60 million yuan, The sales scale of concentrating photovoltaic products with negative gross profit is 230 million yuan. According to the estimation of revenue composition in the third quarter, the gross profit margin of LED chip products is maintained at a stable level of 17% - 18%, and the gross profit margin of LED chip business after material recovery is controlled at a normal level of about 30%.Revenue growth in the fourth quarter will be further improved: the company is currently in stable mass production of about 110 MOCVD equipment. The company's sales of LED street lamp products in the third quarter were lower than expected. According to the contract, the company sold about 640 million street lamp products in 2012, and the sales of 50MW concentrating photovoltaic products will be confirmed within the year. Therefore, we expect the company's revenue recognition in the fourth quarter to be further accelerated.The company's operating cash flow needs to be improved: in the first three quarters, the company's operating cash flow was - 227 million yuan, and the total amount of accounts receivable and notes receivable increased by 1.027 billion compared with the beginning of the year. Although 670 million yuan was notes receivable, at that time, considering the scattered and fierce competition of downstream LED packaging plants, we think the company has a certain bad debt risk.Profit adjustment and investment suggestions:Since the gross profit margin of the company's LED chip business has not recovered significantly, we adjusted the company's profit forecast from 2012 to 2014 to 0.65 yuan, 0.79 yuan and 0.97 yuan respectively. At present, the stock price corresponds to 19 times in 2012 and 16 times in 2013, maintaining the "overweight" rating.
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