Androgamer

IC Engine Table of content Topic Page 1. Basics....................................................................................................2-30 2. Ideal cycles of IC Engine....................................................................31-54 3. Working of a four and two stoke Engine............................................55-60 4. Testing of IC Engine and Super Charger............................................61-78 5. Combustion in IC Engine..................................................................79-103

Heat Transfer Table of content Topic Page 1. Basics....................................................................................................2-13 2. Conduction..........................................................................................14-53 3. Fins......................................................................................................54-66 4. Unsteady State heat conduction..........................................................67-79 5. Heat Exchanger.................................................................................80-113 6. Radiation........................................................................................ 114-158 7. Convection......................................................................................159-206 8. Free or Natural Convection.............................................................207-210 9. Boiling.....................................................................................

Fluid Mechanics  Table of content Topic Page 1. Fluid Properties.....................................................................................2-43  2. Pressure Measurement.........................................................................44-61 3. Hydrostatics Forces.............................................................................61-77 4. Buoyancy and Floatation.....................................................................78-97 5. Fluid Kinematics...............................................................................98-139  6. Fluid Dynamics.............................................................................. 140-170 7. Laminar Pipe flow...........................................................................171-188 8. Flow Through Pipes........................................................................189-215 9. Boundary Layer Theory................................................................

Another Silicon Valley startup is set to take deposits on their own all electric sedan as battery company Lucid has started to take $1,000 deposits for their upcoming Air sedan. So far the Lucid has managed to make a 'beta' prototype with plans to start production in late 2020. Lucid is a battery technology company that threw its hat in the automotive ring by premiering the Lucid Air sedan in 2016 . MODEL S COMPETITOR. One of the advantages of going first is that allows the first to be the standard setter. Such is the case with the Tesla Model S. The Model S has set what consumers expect in a luxury electric sedan. The Lucid Air is taking aim at two numbers specifically, range and price. The Air promises a staggering 400 mile range and hopes to come in at $60,000. The Tesla offers a 373 mile range for their top model and starts at $75,000. LUCID AIR The Air is the first automobile offering for the battery company. It was first introduced in 2016 as a...

Cyberspace does not exist in a vacuum. All cyber systems are built using the physical hardware of the semiconductor chips found in all modern electronics, computers, communications networks and other critical infrastructure. These chips are becoming faster, cheaper and more powerful, and this has enabled the rise of artificial intelligence, the internet of things (IoT), and autonomous systems as key technologies of the future. As the world becomes increasingly reliant on advanced technologies for economic growth and national security, implicit trust in hardware becomes an untenable option. Ultimately, hardware is the foundation for digital trust. A compromised physical component can undermine all additional layers of a system’s cybersecurity to devastating effect. Hardware security, therefore, focuses on protecting systems against the vulnerabilities at the physical layer of devices. ✳️ Hardware vulnerability Hardware attacks take advantage of vulnerabilities in ...

Cyprus on Thursday arrested three people in connection with an alleged Israeli-owned "spy van" equipped with sophisticated surveillance technology capable of hacking communications, police said. The Cypriot suspects, two men and a woman, face 13 charges related to violation of privacy laws, processing private data, falsely obtaining documents and breaking the radio communication law. Police said the trio – who work for the company that owns the van -- are expected to appear before a court in the southern coastal city of Larnaca on Friday for a detention order. The vehicle is owned by Cyprus-registered company WiSpear, whose Israeli CEO Tal Dillian is said to be a former Israeli intelligence officer. Last month an independent investigator was appointed to assist the police probe into the van, which appeared in a Forbes video that went viral on the Mediterranean island. Forbes said multi-million-dollar equipment in the van can monitor electronic devices within a 500-metre...

The FBI has issued a warning to holiday travelers not to use public Wi-Fi on the road this Christmas because of cybersecurity concerns. As internet users cross countries and continents to be with friends and family over the holiday period, the Feds argued that Wi-Fi hotspots should be avoided. “Don’t allow your phone, computer, tablet, or other devices to auto-connect to a free wireless network while you are away from home. This is an open invitation for bad actors to access your device. They then can load malware, steal your passwords and PINs, or even take remote control of your contacts and camera,” it said in a “Tech Tuesday” post this week. “If you do need to connect to a public hotspot — such as at an airport or hotel — make sure to confirm the name of the network and the exact login procedures. Your goal is to avoid accidentally connecting to a fraudster’s Wi-Fi that they are trying to make look legit.” If using a p...

Threat actors breaching company networks are deploying a cornucopia of malware over the remote desktop protocol (RDP), without leaving a trace on target hosts. Cryptocurrency miners, info-stealers, and ransomware are executed in RAM using a remote connection, which also serves for exfiltrating useful information from compromised machines. Exploiting Windows RDS features The attackers leveraged a feature in Windows Remote Desktop Services that allows a client to share local drives to a Terminal Server with read and write permissions. These drives appear on the server as a share on a virtual network location called 'tsclient' followed by the letter of the drive and can be mapped locally. The feature has been around for a long time, and properly explained what happens when a user connects to the server and runs an application. Access to the resources shared this way is possible through RDP and no trace is left on the client machine's disk as applications execute in...

Twitter says it has fixed its Android app's security vulnerability, and urges users to update. HIGHLIGHTS It may have been possible for bad actor to access information on Twitter Direct Messages, protected Tweets, location info may be compromised Users are advised to update their Twitter for Android app. In an extremely stressful year for Internet users, Twitter on Friday admitted a malicious code was inserted into its app by a bad actor that may have compromised some users' information worldwide, including in India, as people woke up to an email from Twitter, warning them to update the app for Android. The vulnerability within Twitter for Android could allow the bad actor to see non-public account information or to control your account (send Tweets or Direct Messages), said an apologetic Twitter. "Prior to the fix, through a complicated process involving the insertion of malicious code into restricted storage areas of the Twitter app, it may have been ...

NASA’s Mars 2020 rover has passed its driving test. The test was mostly a forward and backward maneuver, with a six-wheeled pirouette thrown in. It’s autonomous navigation system was also part of the test. Like a toddler’s first tentative steps, this is an important milestone. This was a significant test for the rover. According to NASA, the rover passed the test and has earned its driver’s license. The next time it drives will be on the surface of Mars. “Mars 2020 has earned its driver’s license.” Rich Rieber, Lead Mobility Systems Engineer, Mars 2020 Rover “Mars 2020 has earned its driver’s license,” said Rich Rieber, the lead mobility systems engineer for Mars 2020. “The test unambiguously proved that the rover can operate under its own weight and demonstrated many of the autonomous-navigation functions for the first time. This is a major milestone for Mars 2020.” Though not exactly autonomous, the 2020 rover is designed to make more of its own driving deci...

qualcomm’s Snapdragon Tech Summit is an annual event during which the chipmaker unveils its upcoming offerings. At last year’s event, Qualcomm  unveiled its flagship Snapdragon 855  mobile  platform  for 2019. It also unveiled the  Snapdragon X50 modem , along with the QTM052 mmWave antenna module, that can be found on most 5G enabled smartphones today. Along with that, the company  launched the Qualcomm Spectra 380  — the world’s first image signal processor (ISP) with integrated artificial intelligence. Furthermore, Qualcomm also  showcased the Snapdragon 8cx compute platform , to power a new generation of premium Always on, Always Connected PCs. The new chip featured 4×4 Kryo 495  CPU  cores with a larger system and L3 cache that allowed for faster multitasking. On the graphics front, the chip included the new Adreno 680 GPU, promising double the performance and 60% greater power efficiency compared to the Snapdragon 850. It i...

Qualcomm Snapdragon 865 Benchmarks: Comparing CPU and GPU Performance with the Kirin 990, Snapdragon 855, and Snapdragon 845 Nearly two weeks ago, Qualcomm invited tech journalists to Maui for the  2019 Snapdragon Tech Summit.  At the event, the company unveiled its latest high-end SoC for mobile devices:  the Qualcomm Snapdragon 865 mobile platform . Qualcomm says the new Snapdragon 865 boasts a 25% CPU performance increase and a 20% GPU performance increase over the previous generation Snapdragon 855. Also, the new SoC supports LPDDR5 memory and is manufactured on a newer 7nm process. Qualcomm’s latest silicon will make its way to 2020 flagships like the  Xiaomi Mi 10,  OPPO Find X2, and many other high-end smartphones. But just how much faster is it than the previous generations? We benchmarked Qualcomm’s Snapdragon 865 reference device at the event to find out. We pit the new SoC against the Snapdragon 855+, the Snapdragon 855, the  Snapdrag...

Today, at a special conference ‘5G · Future Salon’ was held in Beijing. And  Hong Wei , Director of the Technical Committee of Xiaomi Group, gave a speech entitled ‘5G + Smart Home’. He also talked about upcoming 5G smartphones. He mentioned that Xiaomi is an Internet company focusing on smartphones, smart hardware, and IoT platforms. This year, it set a dual-engine strategy for the next 5 years, that is, smartphone + AIoT. At the same time, these are the two directions that Xiaomi will focus on in the next 5 years. How Xiaomi Performs in 5G? At the scene, Hong Wei traced the development process of Xiaomi’s 5G. Xiaomi established a standardization department at the end of 2015 and began to participate in the development of 5G standardization in 3GPP. In October 2017, Xiaomi’s 5G smartphone pre-research work started. Later, in September 2019, Xiaomi released two 5G smartphones, including the Xiaomi Mi 9 Pro 5G and the Mi MIX Alpha. AIoT provides a final smart interconnectio...

The design of the Enco Q1 is pretty similar to the older LG Tone models. There’s a neckband, which is where the battery and controls are, and the earphones are attached by wires. In the age of truly wireless earphones, you might wonder why you’d ever want to get a pair that are both tethered and have the extra weight of a neckband. Well, maybe you don’t ever want to, and that’s perfectly fine. But there are a few good reasons for the band, which I’ll get into later as well. . while many  companies  are hopping on the true-wireless bandwagon, OPPO went for something completely different. These earphones have a stiff neckband, similar to the LG Tone series, but it is flexible and contoured. Having a neckband comes with its own sets of advantages and disadvantages, which I’ll talk about later. OPPO is advertising up to 22 hours of battery life, active noise cancellation, great sound, and incredible comfort with the Enco Q1. How accurate are these statements? Does the ...