Subject:
All Disciplines Arts & Humanities Biology & Life Sciences Business & Economics Chemistry & Materials Science Computer Science & Mathematics Engineering Environmental & Earth Sciences Medicine & Pharmacology Physical Sciences Public Health & Healthcare Social Sciences
Sort:
Hottest Latest Alphabetical (A-Z) Alphabetical (Z-A)
Type:
All Topic Review Biography
Topic Review
Acer Aspire Laptops
Acer Aspire (stylized as Λspire or ΛSPIRE) is a series of personal computers by Acer Inc. aimed at the casual household user or for small business use. The Aspire series covers both desktop computers and laptops. Acer developed the series in order to cover from essentials to high performances. Many of the Aspire laptops, such as model 8920G, have built in Blu-ray drives, 5.1 audio outputs and transflective displays. Acer was the first to include these drives in laptops. Most Aspire laptops have water-resistant screens, such as the 1410 and the 5741 Z. In 2007, Acer introduced the Gemstone series that marked a milestone in the Acer Aspire line. As with many Windows laptops, different models may have different specification in different parts of the world.
  • 2.5K
  • 20 Oct 2022
Topic Review
Ghazal
The ghazal (Bengali: গজল, Sylheti: ꠊꠏꠟ, Punjabi: ਗ਼ਜ਼ਲ, Urdu: غزَل , Hindi: ग़ज़ल, Persian: غزل‎, Azerbaijani: qəzəl, Turkish: gazel, Uzbek: gʻazal, Pashto: غزل‎, Template:Lang-gu,) is a form of amatory poem or ode, originating in Arabic poetry. A ghazal may be understood as a poetic expression of both the pain of loss or separation and the beauty of love in spite of that pain. The ghazal form is ancient, tracing its origins to 7th-century Arabic poetry. The ghazal spread into South Asia in the 12th century due to the influence of Sufi mystics and the courts of the new Islamic Sultanate, and is now most prominently a form of poetry of many languages of the Indian subcontinent and Turkey. A ghazal commonly consists of between five and fifteen couplets, which are independent, but are linked – abstractly, in their theme; and more strictly in their poetic form. The structural requirements of the ghazal are similar in stringency to those of the Petrarchan sonnet. In style and content, due to its highly allusive nature, the ghazal has proved capable of an extraordinary variety of expression around its central themes of love and separation.
  • 2.5K
  • 24 Nov 2022
Topic Review
Messerschmitt Me 323
The Messerschmitt Me 323 Gigant ("Giant") was a German military transport aircraft of World War II. It was a powered variant of the Me 321 military glider and was the largest land-based transport aircraft of the war. A total of 213 are recorded as having been made, 15 being converted from the Me 321.
  • 2.5K
  • 17 Oct 2022
Topic Review
Wind Turbine Blade Failures
The wind turbine is a complex structure. Although there is no single approach and there is variability in the commercial designs, a typical WTB is a thin-walled multi-cellular hollow airfoil shaped cross-section. For its manufacture, a number of materials and material systems are used for structural purposes (fibre composites and sandwich composite systems) as well as aesthetic purposes (primers, UV gel coats, paint, etc). The potential causes of wind turbine blade failures can be classified into the following four categories:1. damage from lightning;2. failures due to fatigue;3. leading edge erosion;4. damage from icing.The types of damage caused to wind turbine blades—originating from the above four different sources—along with their significance to the turbine’s performance and secure operation, are detailed in the following sub-sections.
  • 2.5K
  • 11 Oct 2021
Topic Review
Insulated Cross-Arm Technology
High-voltage transmission technology has advanced quickly with the overall development and increased use of renewable energy. More demands on the insulating system are made when high-voltage power systems evolve. One of the significant factors is the sharp rise in population density, which led to the high demand for electricity. Right-of-way infringement is a problem that frequently occurs these days. Transmission is done over a rated capacity; as a result, the transmission line heats up, the insulation ages, and the electric field becomes distorted. The insulating system is prone to fail too soon when the operating voltage inverses or when there is a significant temperature differential.
  • 2.5K
  • 18 Nov 2022
Topic Review
Drone Detection and Defense Systems
Drones are small and low-cost unmanned aerial vehicles (UAVs). With the decrease in the cost and size of drones in recent years, their number has also increased exponentially. As such, the concerns regarding security aspects that are raised by their presence are also becoming more serious.
  • 2.5K
  • 10 Mar 2022
Topic Review
Impact of Self-Driving Cars
The impact of self-driving cars is anticipated to be wide-ranging on many areas of daily life. Self-driving cars have been the subject of significant research on their environmental, practical, and lifesyle consequences. One significant predicted impact of self-driving cars is a substantial reduction in traffic collisions and resulting severe injuries or deaths. United States government estimates suggest 94% of traffic collisions are caused by human error, with a 2020 study estimating that making 90% of cars on US roads self-driving would save 25,000 lives per year. While this has significant benefits, other health downsides of self-driving cars are predicted; self-driving cars are suggested to worsen air pollution, noise pollution, and sedentary lifestyles, and may contribute to shortages of donor organs. Self-driving cars are anticipated to increase productivity and housing affordability, as well as reclaim land used for parking. However, they are also predicted to cause greater energy use, traffic congestion and sprawl. The impact of self-driving cars on absolute levels of individual car use is not yet clear, with commentators alternatively predicting increases and decreases. Self-driving cars are one of several potential autonomous vehicles, and other forms of self-driving vehicles, such as self-driving buses, may decrease car use and congestion in ways self-driving cars are unlikely to. The effect of self-driving cars on various employment fields is predicted to be wide-ranging. Impacts are anticipated on the healthcare, insurance, travel, and logistics fields. Auto insurance costs are expected to decrease, and the burden of cars on the healthcare system to reduce. Self-driving cars are predicted to have substantial and wide-ranging effects on transportation industries, with significant job losses in these fields.
  • 2.5K
  • 24 Nov 2022
Topic Review
Types of Insulation Materials
Insulation materials are classified into three main categories depending on material composition, material technology, and material sustainability index.
  • 2.5K
  • 11 Jan 2023
Topic Review
Jaguar S-Type
The Jaguar S-Type was an executive car that debuted at the 1998 Birmingham Motor Show and was marketed by Jaguar for model years 1999-2008, reviving the nameplate of the company's 1963-68 S-Type as a four-door notchback saloon. The S-Type received a mild facelift for model year 2005. The 2002 S-Type 4.2 Supercharged V8 at the time, was the fastest road production saloon car in the world. The S-Type was discontinued in late 2007 and replaced by the XF.
  • 2.5K
  • 09 Nov 2022
Topic Review
Virtual Reality and Robots
There is a significant amount of synergy between virtual reality (VR) and the field of robotics. However, it has only been in approximately the past five years that commercial immersive VR devices have been available to developers. This new availability has led to a rapid increase in research using VR devices in the field of robotics, especially in the development of VR interfaces for operating robots. 
  • 2.5K
  • 25 Jan 2021
  • Page
  • of
  • 678
Featured Entry Collections
>>

Featured Books

>>
Encyclopedia of Social Sciences
Encyclopedia of COVID-19
Encyclopedia of Fungi
Encyclopedia of Digital Society, Industry 5.0 and Smart City
Video Production Service
Feedback