HP Pavilion dv9500t

Without much fanfare, HP has started offering an upgrade to its sleek and sexy Pavilion dv9500t notebook that's sure to please multimedia mavens: an HD DVD-R drive. While the previous dv9500t had the ability to play HD-DVD movies, the updated dv9500t can now burn HD content as well.

The notebook, which starts at $1,174, features Windows Vista Home Premium, a 1.6-GHz Intel Core 2 Duo processor, a 17-inch WXGA+ display, 1GB of RAM, a webcam and mic, 160GB hard drive, 802.11a/g/n Wi-Fi, and the required Nvidia GeForce 8600M GS graphics card to complement the HD DVD-R drive. The HP Pavilion dv9500t with HD DVD-R is available now.

HP Pavilion dv9500t Notebook specs:
Intel Core 2 Duo processor T5450 (1.66 GHz, 2MB L2 Cache, 667MHz FSB), 17.0″ WXGA+ BrightView Widescreen (1440×900), Vista Premium, Intel Graphics Media Accelerator X3100, 1GB SDRAM, 160GB 5400RPM SATA Hard Drive, LightScribe SuperMulti 8X DVD+/-RW with Double Layer Support, PRO/Wireless 4965AGN Network Connection, 8 Cell Lithium Ion Battery, Microsoft Works 8.0, Free Microphone/Webcam, one-year limited warranty.

Motherboard

The Asus P5NT WS Motherboard is built on the Nvidia nForce 680i LT SLI chipset structure which supports a LGA775 Socket for running Intel Dual-core /Quad-core CPUs and two Nvidia SLI graphic cards with Dual x16 speeds on the same platform. The Asus P5NT WS is also fitted with solid state capacitors and a conductive polymer that creates the perfect system stability. These high quality materials also help ensure that the motherboard will have a longer product lifetime.

The innovative Heat-pipe Thermal design of the Asus P5NT WS motherboard effectively directs the heat generated by the chipsets to the heatsink near the back IO ports – where it can be dissipated by existing airflow from the CPU fan or optional fans. With AI Nap, users can instantly snooze the PC without terminating any tasks. The system will continue operating at minimum power and noise till reawakened.

DDR3-1800 Intel Extreme Memory modules

OCZ Technology Group has announced new 1800MHz Intel Extreme Memory modules, a performance solution that implements a specification predefined and specially tailored for the Intel X48 chipset. Designed to significantly increase performance levels of the entire platform, OCZ 1800MHz Intel Extreme Memory modules, feature Intel Extreme Memory Profiles (XMP), an exclusive set of SPD (Serial Presence Detect) settings that act as an integrated “plug and play” overclocking tool. Configured to Intel’s defined specification, these XMP-Ready memory kits will be configured to run CL8 latencies at 1800 MHz. Furthermore, each OCZ XMP module also features CL7 latencies on a second profile that is qualified by OCZ for the extreme enthusiast seeking tighter timings.

The new OCZ PC3-14400 Intel XMP memory will be available in 1GB modules and 2GB (2x1024MB) dual channel kits. Combining the blazing speeds and incredible bandwidth of DDR3 with the power of Intel’s latest chipset, these top-speed modules are the ideal solution for enthusiasts looking for the extra performance gains optimized memory offers their system.

ASUS Triton 77 CPU Cooler

Asus has unveiled The new Triton Series CPU Coolers –Triton 77 from Asus incorporates innovative features that include the up-way air flow technology, high-density fins, dynamic fan speed control and pure copper heat pipes to deliver efficient heat dissipation for the latest quad-core processors. With its lightweight and compact cooler size, the Asus Triton 77 is also compatible with a wide range of motherboards and chassis. The Triton 77 provides up to 15% enhanced cooling efficiency by rapidly transferring heat directly from the CPU and dissipating it out from the chassis with the case fan. Additionally, it also carries the heat produced by the VRM (Voltage regulation modules) surrounding the CPU to reduce their temperature by 10-15˚C for system reliability and stability.

With ASUS’ innovative Up-way air flow cooling technology, The Triton 77 CPU coolers support Intel Core 2 Quad / Intel Core 2 Duo, Intel Pentium processor family, Intel Pentium 4 HT/Celeron D CPUs, as well as AMD ’s Socket AM2/940/939, Athlon 64-FX, Athlon and Sempron processors. It also adopts a PWM function fan that can automatically modulate fan speeds according to the CPU temperature to deliver quiet operations at a mere 18 dBA.

MSI has launched its latest MSI NX8800GT Series graphics card, base on NVIDIA GeForce 8800GT Series GPU with onboard graphics memory to 1024MB (1GB). MSI NX8800GT 1GB Series adopt 8 sets of Qimonda high speed, double data rate, high bandwidth 1Gbit graphics memory chips. All these high-speed 1Gbit memory chips also compliant RoHS regulation strictly. Low voltage level design and support advanced "Auto Refresh" and "Power Down with Self Refresh" operations. All these green and ECO concept gives user the maximum possibility for over-clocking and maintains minimum power consumption.

In order to give power users more privilege on over-clocking and advanced tweaking, MSI NX8800GT 1GB Series loads with a 2-Slot, 3 sets high efficient heat-pipes thermal solution. With this 2-Slot fan which can cover over 90% of the graphics PCB, not only GPU/memory but also other components onboard can be cooled at once, ensuring best stability at any condition.

After increasing the size of high speed graphics memory, MSI NX8800GT Series makes your High-definition gaming experience unparalleled smooth than ever. Just because of plenty of memory space for GPU utilized as frame buffer, more texture resource can be read and written in real time. And this makes the gaming in extremely high-definition possible.

Graphics Card for "AMD"

The 3800 series launches with two models. A base card, the 3850, incorporates the full feature set in a single-slot design with a 670MHz core speed and 256MB of video memory at 1.66GHz. The Radeon HD 3870 switches to a double-slot size but is clocked at a minimum 775MHz and doubles the amount of memory to 512MB at a faster 2.25GHz. ATI is releasing the cards as a Windows upgrade both under its own name and with third-party manufacturers at prices of $179 and $219 respectively. Support for other operating systems has not yet been mentioned but is expected.

Definition Of Mechanical

• Mechanical Engineering is an engineering discipline that involves the application of principles of physics for analysis, design, manufacturing, and maintenance of mechanical systems. Mechanical engineering is one of the oldest and broadest engineering disciplines. It requires a solid understanding of core concepts including mechanics, kinematics, thermodynamics, fluid mechanics, and energy. Mechanical engineers use the core principles as well as other knowledge in the field to design and analyze motor vehicles, aircraft, heating and cooling systems, watercraft, manufacturing plants, industrial equipment and machinery, robotics, medical devices and more.

Concept of Force

• Equilibrium of a Particle

• You are standing in an elevator, ascending at a constant velocity, what is the resultant force acting on you as a particle?

• The correct response is zero: For a particle at rest, or moving with constant velocity relative to an inertial frame, the resultant force acting on the isolated particle must be zero, must vanish. We usually attribute this to the unquestionable authority of Newton.

• The essential phrases in the question are constant velocity, resultant force and particle. Other words like “standing”, “elevator”, “ascending”, and “you” seem less important, even distracting, but they are there for a reason: The world that you as an engineer will analyze, re-design, and systematize is filled with people and elevators, not isolated particles, velocity vectors, or resultant forces — or at least, not at first sight. The latter concepts are abstractions which you must learn to identify in the world around you in order to work effectively as an engineer, e.g., in order to design an elevator. The problems that appear in engineering text books are a kind of middle ground between abstract theory and everyday reality. We want you to learn to read and see through the superficial appearances, these descriptions which mask certain scientific concepts and principles, in order to grasp and appropriate the underlying forms that provide the basis for engineering analysis and design.

• The key phrase in Newton’s requirement is isolated particle: It is absolutely essential that you learn to abstract out of the problem statement and all of its relevant and irrelevant words and phrases, a vision of a particle as a point free in space. It’s best to render this vision, this abstraction “hard”by drawing it on a clean sheet of paper. Here is how it would look.

AutoCad

• AutoCAD is a CAD (Computer Aided Design or Computer Aided Drafting) software application for 2D and 3D design and drafting, developed and sold by Autodesk, Inc. Initially released in late 1982, AutoCAD was one of the first CAD programs to run on personal computers, and notably the IBM PC. Most CAD software at the time ran on graphics terminals connected to mainframe computers or mini-computers.
  In earlier releases, AutoCAD used primitive entities — such as lines, polylines, circles, arcs, and text — as the foundation for more complex objects. Since the mid-1990s, AutoCAD has supported custom objects through its C++ API. Modern AutoCAD includes a full set of basic solid modeling and 3D tools. With the release of AutoCAD 2007 came improved 3D modeling functionality, which meant better navigation when working in 3D. Moreover, it became easier to edit 3D models. The mental ray engine was included in rendering, it was now possible to do quality renderings. AutoCAD 2010 introduced parametric functionality and mesh modeling.
  AutoCAD supports a number of application programming interfaces (APIs) for customization and automation. These include AutoLISP, Visual LISP, VBA, .NET and ObjectARX. ObjectARX is a C++ class library, which was also the base for products extending AutoCAD functionality to specific fields, to create products such as AutoCAD Architecture, AutoCAD Electrical, AutoCAD Civil 3D, or third-party AutoCAD-based applications.
  

Principle of a hydraulic drive

• Pascal's law is the basis of hydraulic drive systems. As the pressure in the system is the same, the force that the fluid gives to the surroundings is therefore equal to pressure x area. In such a way, a small piston feels a small force and a large piston feels a large force.The same counts for a hydraulic pump with a small swept volume, that asks for a small torque, combined with a hydraulic motor with a large sweptvolume, that gives a large torque.
  In such a way a transmission with a certain ratio can be built.
  Most hydraulic drive systems make use of hydraulic cylinders. Here the same principle is used- a small torque can be transmitted in to a large force.

PENGENALAN KEPADA KIMPALAN

• Kimpalan ialah satu proses penyambungan logam. Penyambungan logam bermaksud dua logam disambung antara satu sama lain. Penyambungan boleh berlaku dengan melebur atau tidak melebur kedua-dua logam yang hendak disambung. Proses kimpalan dengan meleburkan logam dikenali sebagai kimpalan lebur, sementara kimpalan dengan tidak meleburkan logam dikenali sebagai kimpalan tidak lebur. Kimpalan Arka adalah jenis kimpalan lebur.

"-Kimpalan aRka-"



Meh..ramai - ramai tgk video nie best tau...hope u all enjoy..

KESELAMATAN DAN PERALATAN ASAS

Berikut ialah beberapa kelengkapan asas mengimpal arka:·

• Berus dawai.·


• Penggarit.·


• Kapur kejuruteraan.·


• Chipping hammer.·
  
• Elektrod. .
  
• Pemegang elektrod.
  
• Kabel elektrik. .

• Pelindung muka..
  
• Pelindung Muka Pelindung muka diguna untuk melindungi mata dan muka pengimpal dari terkena percikkan arka. Ia juga melindungi pengimpal dari pancaranultra voilet yang boleh membahayakan mata.

• Pemegang Elektrod...
  
• Pemegang elektrod berfungsi memegang elektrod ketika kerja kimpalan sedang dilakukan. Awas dengan pemegang elektrod yang sudah longgar atau rosak. Ia mesti diganti untuk mengelak dari terkena kejutan elektrik.
  
  
  
  
• Chipping Hammer ...


• Chipping hammer diguna untuk membuang sangga/jeremang.Awas dengan sangga panas.

• Elektrod...


• Elektrod adalah satu dawai atau batang rod yang digunasebagai terminal atau pengalir kimpalan arka. Ia berfungsisebagai dawai pengisi atau rod pengisi.
  

Applications of mechanical engineering can be found in the records of many ancient and medieval societies throughout the globe. In ancient Greece, the works of Archimedes (287 BC–212 BC) and Heron of Alexandria (10–70 AD) deeply influenced mechanics in the Western tradition. In China, Zhang Heng (78–139 AD) improved a water clock and invented a seismometer, and Ma Jun (200–265 AD) invented a chariot with differential gears. The medieval Chinese horologist and engineer Su Song (1020–1101 AD) incorporated an escapement mechanism into his astronomical clock tower two centuries before any escapement could be found in clocks of medieval Europe, as well as the world's first known endless power-transmitting chain drive.[1]
During the early 19th century in England and Scotland, the development of machine tools led mechanical engineering to develop as a separate field within engineering, providing manufacturing machines and the engines to power them.[2] The first British professional society of mechanical engineers was formed in 1847, thirty years after civil engineers formed the first such professional society.[3] In the United States, the American Society of Mechanical Engineers (ASME) was formed in 1880, becoming the third such professional engineering society, after the American Society of Civil Engineers (1852) and the American Institute of Mining Engineers (1871).[4] The first schools in the United States to offer an engineering education were the United States Military Academy in 1817, an institution now known as Norwich University in 1819, and Rensselaer Polytechnic Institute in 1825. Education in mechanical engineering has historically been based on a strong foundation in mathematics and science.[5]

Drafting or technical drawing is the means by which mechanical engineers create instructions for manufacturing parts. A technical drawing can be a computer model or hand-drawn schematic showing all the dimensions necessary to manufacture a part, as well as assembly notes, a list of required materials, and other pertinent information. A U.S. mechanical engineer or skilled worker who creates technical drawings may be referred to as a drafter or draftsman. Drafting has historically been a two-dimensional process, but computer-aided design (CAD) programs now allow the designer to create in three dimensions.
Instructions for manufacturing a part must be fed to the necessary machinery, either manually, through programmed instructions, or through the use of a computer-aided manufacturing (CAM) or combined CAD/CAM program. Optionally, an engineer may also manually manufacture a part using the technical drawings, but this is becoming an increasing rarity, with the advent of computer numerically controlled (CNC) manufacturing. Engineers primarily manually manufacture parts in the areas of applied spray coatings, finishes, and other processes that cannot economically or practically be done by a machine.
Drafting is used in nearly every subdiscipline of mechanical engineering, and by many other branches of engineering and architecture. Three-dimensional models created using CAD software are also commonly used in finite element analysis (FEA) and computational fluid dynamics (CFD).

Robotics is the science and technology of robots, their design, manufacture, and application.[1] Robotics requires a working knowledge of electronics, mechanics and software, and is usually accompanied by a large working knowledge of many subjects.[2] A person working in the field is a roboticist.
The structure of a robot is usually mostly mechanical and can be called a kinematic chain (its functionality being similar to the skeleton of the human body). The chain is formed of links (its bones), actuators (its muscles) and joints which can allow one or more degrees of freedom. Most contemporary robots use open serial chains in which each link connects the one before to the one after it. These robots are called serial robots and often resemble the human arm. Some robots, such as the Stewart platform, use closed parallel kinematic chains. Other structures, such as those that mimic the mechanical structure of humans, various animals and insects, are comparatively rare. However, the development and use of such structures in robots is an active area of research (e.g. biomechanics). Robots used as manipulators have an end effector mounted on the last link. This end effector can be anything from a welding device to a mechanical hand used to manipulate the environment. ISO 10248 defines a robotic application on the industrial field.

Mechatronics is an interdisciplinary branch of mechanical engineering, electrical engineering and software engineering that is concerned with integrating electrical and mechanical engineering to create hybrid systems. In this way, machines can be automated through the use of electric motors, servo-mechanisms, and other electrical systems in conjunction with special software. A common example of a mechatronics system is a CD-ROM drive. Mechanical systems open and close the drive, spin the CD and move the laser, while an optical system reads the data on the CD and converts it to bits. Integrated software controls the process and communicates the contents of the CD to the computer.

Industrial robots perform repetitive tasks, such as assembling vehicles.
Robotics is the application of mechatronics to create robots, which are often used in industry to perform tasks that are dangerous, unpleasant, or repetitive. These robots may be of any shape and size, but all are preprogrammed and interact physically with the world. To create a robot, an engineer typically employs kinematics (to determine the robot's range of motion) and mechanics (to determine the stresses within the robot).
Robots are used extensively in industrial engineering. They allow businesses to save money on labor and perform tasks that are either too dangerous or too precise for humans to perform them economically. Many companies employ assembly lines of robots, and some factories are so robotized that they can run by themselves. Outside the factory, robots have been employed in bomb disposal, space exploration, and many other fields. Robots are also sold for various residential applications.

Mechanics is, in the most general sense, the study of forces and their effect upon matter. Typically, engineering mechanics is used to analyze and predict the acceleration and deformation (both elastic and plastic) of objects under known forces (also called loads) or stresses. Subdisciplines of mechanics include

• Statics, the study of non-moving bodies under known loads
• Dynamics (or kinetics), the study of how forces affect moving bodies
• Mechanics of materials, the study of how different materials deform under various types of stress
• Fluid mechanics, the study of how fluids react to forces[19]
• Continuum mechanics, a method of applying mechanics that assumes that objects are continuous (rather than discrete)
  Mechanical engineers typically use mechanics in the design or analysis phases of engineering. If the engineering project were the design of a vehicle, statics might be employed to design the frame of the vehicle, in order to evaluate where the stresses will be most intense. Dynamics might be used when designing the car's engine, to evaluate the forces in the pistons and cams as the engine cycles. Mechanics of materials might be used to choose appropriate materials for the frame and engine. Fluid mechanics might be used to design a ventilation system for the vehicle (see HVAC), or to design the intake system for the engine.

Mechanical engineering is an engineering discipline that involves the application of principles of physics for analysis, design, manufacturing, and maintenance of mechanical systems. It requires a solid understanding of core concepts including mechanics, kinematics, thermodynamics and energy. Mechanical engineers use the core principles as well as other knowledge in the field to design and analyze motor vehicles, aircraft, heating and cooling systems, watercraft, manufacturing plants, industrial equipment and machinery, robotics, medical devices and more.