El CERN es el mayor laboratorio de f鱈sica de part鱈culas del mundo, fundado en 1954 en la frontera franco-suiza. Realiza investigaciones sobre los or鱈genes y constituyentes fundamentales de la materia usando colisionadores de part鱈culas como el LHC. Espa単a es miembro fundador y contribuye anualmente varias decenas de millones de euros a pesar de los altos costos, debido a la importancia de la investigaci坦n.
Los barcos generan grandes cantidades de residuos acu叩ticos como 13,000-26,000 litros de aguas oleosas y 67-130 kilos de residuos t坦xicos. Tambi辿n emiten grandes cantidades de gases contaminantes como 坦xidos de nitr坦geno y azufre, siendo responsables del 18-30% y 9% respectivamente de las emisiones mundiales. Adem叩s, los polizones como conejos y peces le坦n que llegan en los barcos pueden proliferar sin control en nuevos ecosistemas y eliminar especies locales.
Docentes y planes virtuales 臓an鱈mate! aLorena Pernia
油
Este documento describe c坦mo los docentes pueden usar plataformas virtuales y planes educativos en l鱈nea para apoyar el aprendizaje de los estudiantes. Explica que las plataformas virtuales permiten a docentes y estudiantes integrar las funcionalidades de Internet en sus actividades de ense単anza y aprendizaje m叩s all叩 del horario escolar. Tambi辿n proporciona ejemplos de plataformas virtuales gratuitas como Moodle, Magis y Claroline que los docentes pueden usar y brinda instrucciones sobre c坦mo instalar Moodle. Alienta a
The authors developed Oregon-specific live load factors for bridge rating using weigh-in-motion (WIM) data from four sites across the state. The live load factors were calibrated using the same statistical methods as the LRFR Manual while maintaining nationally accepted reliability levels. The WIM data was filtered and sorted to describe Oregon's unique truck population allowed under permits. Smaller live load factors than national standards were obtained that better reflect Oregon's actual bridge loads.
Contabilidade geral i cap 12 slides - plano contasgabaritocontabil
油
O documento discute os principais aspectos do Plano de Contas, incluindo sua finalidade de registrar todos os fatos cont叩beis de uma empresa de forma ordenada, a import但ncia do Manual de Contas para descrever cada conta, e as regras para a elabora巽達o do Plano de Contas de acordo com as necessidades da empresa.
One Direction es una boy band brit叩nica-irlandesa formada en 2010 que est叩 compuesta por 5 integrantes: Harry Styles, Liam Payne, Louis Tomlinson, Niall Horan y Zayn Malik. Se hicieron conocidos despu辿s de participar en el programa de televisi坦n The X Factor en el Reino Unido. Desde su formaci坦n han lanzado 3 叩lbumes de estudio y varios EP.
This document examines tourism development in Korea through the case study of the Baekje History Reproduction Complex (BHRC) project in Buyeo. The study aims to examine collaboration between stakeholders, distinguish different forms of conflict, and analyze how conflict relates to inertia in the project. The case study finds issues like complex governance structures, disagreements over historical interpretation, egoistic business behaviors, lack of professional resources, and poor human resource management led to conflicts between stakeholders. However, the project still progressed despite ongoing problems and inertia, highlighting how lack of collaboration does not necessarily lead to conflict but can instead cause inertia in the project.
This presentation gives a lot of information about
Semiconductor Devices.This is presented by Rajesh Kumar Sangani from Rajiv Gandhi University of Knowledge Technologies,Basar Dist
Adilabad,A.P,India.
1. The document discusses trends in the semiconductor industry including high historical growth rates, increasing technological innovation, and need for capital to support growth and innovation.
2. It notes mixed current market conditions due to fragile global economy but growth potential in automotive and industrial markets, especially in emerging economies.
3. Key drivers are seen as data processing, communications, and consumer electronics applications as well as China increasing its semiconductor market share.
This document discusses energy bands in solids and semiconductor devices. It explains how the discrete energy levels in isolated atoms merge and form continuous energy bands as atoms are brought together in a solid. In semiconductors, the valence band is full while the conduction band is empty, with a small band gap between them. Thermally excited electrons can cross this gap, making semiconductors weakly conductive. Doping a semiconductor with impurities introduces donors or acceptors that increase the number of free electrons or holes, making it an n-type or p-type extrinsic semiconductor. The carrier concentrations and conductivity of semiconductors are determined by factors like doping level, temperature, and carrier mobilities.
The document discusses the physics of semiconductors including PN junction diodes and resistors. It covers semiconductor fundamentals like doping and intrinsic nature. It describes how doping materials like phosphorus or boron create N-type or P-type semiconductors. When an N-type and P-type material come into contact, a PN junction is formed with a depletion region and electric field. A PN junction acts as a switch that only allows current in one direction depending on whether it is forward or reverse biased.
More Related Content
Viewers also liked (19)
Docentes y planes virtuales 臓an鱈mate! aLorena Pernia
油
Este documento describe c坦mo los docentes pueden usar plataformas virtuales y planes educativos en l鱈nea para apoyar el aprendizaje de los estudiantes. Explica que las plataformas virtuales permiten a docentes y estudiantes integrar las funcionalidades de Internet en sus actividades de ense単anza y aprendizaje m叩s all叩 del horario escolar. Tambi辿n proporciona ejemplos de plataformas virtuales gratuitas como Moodle, Magis y Claroline que los docentes pueden usar y brinda instrucciones sobre c坦mo instalar Moodle. Alienta a
The authors developed Oregon-specific live load factors for bridge rating using weigh-in-motion (WIM) data from four sites across the state. The live load factors were calibrated using the same statistical methods as the LRFR Manual while maintaining nationally accepted reliability levels. The WIM data was filtered and sorted to describe Oregon's unique truck population allowed under permits. Smaller live load factors than national standards were obtained that better reflect Oregon's actual bridge loads.
Contabilidade geral i cap 12 slides - plano contasgabaritocontabil
油
O documento discute os principais aspectos do Plano de Contas, incluindo sua finalidade de registrar todos os fatos cont叩beis de uma empresa de forma ordenada, a import但ncia do Manual de Contas para descrever cada conta, e as regras para a elabora巽達o do Plano de Contas de acordo com as necessidades da empresa.
One Direction es una boy band brit叩nica-irlandesa formada en 2010 que est叩 compuesta por 5 integrantes: Harry Styles, Liam Payne, Louis Tomlinson, Niall Horan y Zayn Malik. Se hicieron conocidos despu辿s de participar en el programa de televisi坦n The X Factor en el Reino Unido. Desde su formaci坦n han lanzado 3 叩lbumes de estudio y varios EP.
This document examines tourism development in Korea through the case study of the Baekje History Reproduction Complex (BHRC) project in Buyeo. The study aims to examine collaboration between stakeholders, distinguish different forms of conflict, and analyze how conflict relates to inertia in the project. The case study finds issues like complex governance structures, disagreements over historical interpretation, egoistic business behaviors, lack of professional resources, and poor human resource management led to conflicts between stakeholders. However, the project still progressed despite ongoing problems and inertia, highlighting how lack of collaboration does not necessarily lead to conflict but can instead cause inertia in the project.
This presentation gives a lot of information about
Semiconductor Devices.This is presented by Rajesh Kumar Sangani from Rajiv Gandhi University of Knowledge Technologies,Basar Dist
Adilabad,A.P,India.
1. The document discusses trends in the semiconductor industry including high historical growth rates, increasing technological innovation, and need for capital to support growth and innovation.
2. It notes mixed current market conditions due to fragile global economy but growth potential in automotive and industrial markets, especially in emerging economies.
3. Key drivers are seen as data processing, communications, and consumer electronics applications as well as China increasing its semiconductor market share.
This document discusses energy bands in solids and semiconductor devices. It explains how the discrete energy levels in isolated atoms merge and form continuous energy bands as atoms are brought together in a solid. In semiconductors, the valence band is full while the conduction band is empty, with a small band gap between them. Thermally excited electrons can cross this gap, making semiconductors weakly conductive. Doping a semiconductor with impurities introduces donors or acceptors that increase the number of free electrons or holes, making it an n-type or p-type extrinsic semiconductor. The carrier concentrations and conductivity of semiconductors are determined by factors like doping level, temperature, and carrier mobilities.
The document discusses the physics of semiconductors including PN junction diodes and resistors. It covers semiconductor fundamentals like doping and intrinsic nature. It describes how doping materials like phosphorus or boron create N-type or P-type semiconductors. When an N-type and P-type material come into contact, a PN junction is formed with a depletion region and electric field. A PN junction acts as a switch that only allows current in one direction depending on whether it is forward or reverse biased.
Docentes y planes virtuales 臓an鱈mate! aLorena Pernia