Conventional ACSR conductors are formed by stranding aluminum wires over a steel core. The core does not contribute to current carrying and is used only for purposes. has great role in the shedding of line weight. With increase weight, longer poles at shorter distances, but it cannot be abandoned because undertakes transport task. Nowadays, search alternatives conventional conductor accelerated...

Solder ball height inspection is essential to the detection of potential connectivity issues in semi-conductor units. Current ball height inspection tools such as laser profiling, fringe projection and confocal microscopy are expensive, require complicated setup and are slow, which makes them difficult to use in a real-time manufacturing setting. Therefore, a reliable, in-line ball height measu...

In p r es e nt d a y mod e r n wor l d Vehicles have become an part and parcel of every one's life. Situations and circumstances have their predominant role in the usage of vehicles in this modernized urban life. As to consider both sides of the coin, this has its own effects, one of the main side effects being air pollution. Each and Every vehicle will have emission but the main problem occurs...

Overhead transmission lines are influenced by different factors which are mostly electrical and mechanical. These factors can cause problems for lines, distortions in network and outage of line. In designing transmission lines mechanical properties are evaluated after selecting a suitable conductor and clearance with regard to electrical properties. In lines designing, an important mechanical p...

We define the characteristic cycle of an étale sheaf as a cycle on the cotangent bundle of a smooth variety in positive characteristic assuming the existence of a singular support. We prove a formula à la Milnor for the total dimension of the space of vanishing cycles and an index formula computing the Euler-Poincaré characteristic. An essential ingredient of the construction and the proof is a...

Point defects in epitaxial GaN and ZnSe semiconductor layers have been studied using a low-energy positron beam. Ga vacancies are found to be present in n-type GaN grown by metal organic chemical vapor deposition, where the conductivity is due to residual oxygen. When n-type silicon impurity doping is done, clearly less vacancies are observed. In Mgdoped p-type and semi-insulating materials the...

The ATLAS Semi-Conductor Tracker (SCT) Collaboration is currently in the production phase of fabricating and testing silicon strips modules for the ATLAS detector at the Large Hadron Collider being built at the CERN laboratory in Geneva, Switzerland. A small but relevant percentage of ICs developed a new set of defects after being mounted on hybrids that were not detected in the wafer screening...

Six sigma is a highly disciplined process that focuses on developing and delivering nearperfect products and services consistently. Six sigma is also a management stragety to use statistical tools and project work to achieve breakthrough profitability and quantum gains in quality. The steps in the six sigma process are Define, Measure, Analyse, Improve, Control or DMAIC for short (Kubiak T.M, B...