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2011年6月29日星期三

3D電視選誰好認準IPS硬屏是關鍵

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經過了2010年上半年的市場預熱，同時借助電影《阿凡達》、世界杯等事件的推動，3D影像被人們廣為熟知，而在平板電視領域也掀起了一波3D的市場熱潮。目前幾乎所有電視廠商都先后發布了自己旗下的3D電視產品，這其中尤以日韓品牌居多。

值得關注的是，據奧維咨詢最新的調查數據顯示，索尼以48%的3D電視市占率后來居上，暫時坐上頭把交椅。而國內品牌也在加緊3D電視上市的步伐，可以說，下半年中日韓各大家電廠商均已介入，整個3D電視市場競爭會更加激烈。

3D市場前景看好阻力多

元年契機需時日

將來3D技術發展到最后都是以裸眼方式觀看的，但目前市場見到的3D電視都需要戴眼鏡來獲得3D效果。眼下，市場上的3D電視均是采用的主動快門式，佩戴主動快門式3D眼鏡，左右眼長時間無法同步觀看所帶來的暈眩和惡心的感受，可不是3D電視最想要帶給消費者的體驗。同時，快門式笨重的眼鏡、充電的后期成本以及眼鏡本身高昂的價格，都是目前快門式3D電視被人詬病的缺陷。

由于受信號接收的影響，在戴著主動快門式眼鏡觀看3D畫面時，對觀看者的觀看位置有一定限制，如果超出了信號接收范圍，眼鏡工作就會間或失效，從而看不到3D圖像。并且，雖然并不建議長時間觀看3D畫面，但是如果眼鏡電池使用不久就供電不足，也會令3D圖像大受影響。如果時刻為充電而分心，肯定會影響觀賞效果和心情。

當然，不管是眼下主流的主動快門式還是以后可能會興起的偏振光式，決定3D電視性能表現的始終是液晶電視的核心面板技術。隨著3D電視市場的日益成熟，品牌選擇不斷增多，面板就成為了最關鍵的選購指標。

3D定位大尺寸應用領域

IPS硬屏優勢明顯

此外，目前上市的3D電視均為40英寸以上的產品，3D電視也被打上了大尺寸液晶電視的標簽。確實，3D效果在大尺寸畫面下體現更為顯著的身臨其境的觀賞效果，因而大尺寸也是3D電視的主流趨勢。在大尺寸3D電視的應用中，3D畫面呈現的放大效果對屏幕穩固和廣視角均有更高要求，3D畫面更強烈的視覺沖擊給健康護眼增加了壓力，IPS硬屏的結構特點和性能優勢給這一應用提供了更優化的方案。

不可否認，在中日韓各方廠商的一致推廣下，3D電視在2010年勢必得到長足發展。而伴隨著3D標準制定的加速，市場認知度的不斷增加，3D電視也有希望在2011年的終端市場走出一波強勁的上揚線。只有那些掌握核心技術以及核心競爭力的廠商，才能在這激烈的3D影像大戰中，分得一杯羹，獲得長足發展。

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iPad新增三家渠道商神州數碼意外落選

What Are the Different Adjunct Professor Jobs?

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If you're hoping to pursue a career in academia, you may be surprised to learn that not all college professors have the same job classification. The most prestigious positions are those which offer tenure, a contractual right not to have the position terminated without just cause. Tenure track positions include those of assistant professor, associate professor, distinguished professor, endowed chair, or professor emeritus jobs. Unfortunately, the bulk of positions available in academia today are adjunct professor jobs.The exact number of adjunct professors at a particular college or university will vary, although it is estimated that nearly 50 percent of all instructors in the United States are classified as adjunct professors and that 60 to 70 percent of available positions at any given time are adjunct professor jobs. Adjunct professor jobs are typically non-tenure track positions that are part-time. The instructor is paid for each class he teaches instead of receiving a set salary. Depending upon the institution, an adjunct professor may be called an adjunct lecturer, adjunct instructor, or faculty associate. The popularity of adjunct professor jobs at colleges and universities of all sizes is simply a matter of cost effectiveness. Since adjunct faculty are part-time employees, they may not receive employment benefits. They can be hired and fired depending upon the course needs of the institution for a particular semester. For the most part, adjunct professor jobs involve teaching undergraduate courses. These are the large lecture classes that freshman and sophomores must complete in order to begin advanced coursework in their chosen major. Adjunct jobs do not normally involve conducting research, unless the position is specifically outlined as a research professor job. Despite their lack of job security and the fact that they typically earn significantly lower salaries than their tenure track counterparts, the majority of adjunct faculty must meet the same requirements as an assistant or associate professor. They generally have advanced degrees in their subject area and relevant professional work experience. At most colleges and universities, the process for hiring adjunct professors is similar to that of selecting candidates for any other professional position within the institution. Adjunct professor jobs have generated a fair amount of controversy in recent years, due to allegations that the system is abusive and unfair. It is true that many adjunct professors would prefer to be teaching in full-time tenure track positions. However, others say they actually prefer the flexibility of the part-time teaching gig. Adjunct professor positions allow them to indulge their passion for a particular subject area while still allowing time to pursue other projects, such as film-making or writing a novel.

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What Are the Different Exercise Physiologist Jobs?

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A physiologist is a specialist in physiology, the study of the functions of living things. An exercise physiologist is an allied health professional specializing in the physiology of exercise. Exercise physiologist jobs can be as unique and creative as an individual’s personality.The job of an exercise physiologist is to implement exercises and monitor the cardiovascular and metabolic effects of the routine necessary for physical rehabilitation. These physiologists evaluate physical abilities and employ exercises to enhance and maintain overall health and conditioning. They also collaborate with other healthcare professionals to identify risks and provide a comprehensive rehabilitation program. Therefore exercise physiologist jobs can be found wherever there is a focus on health, overall wellness, and fitness.Exercise physiologist jobs can be found in working alongside personal fitness trainers and exercise science professionals. Hospitals and clinical settings are other venues where exercise physiologist jobs can be acquired. Health clubs, recreation centers and educational institutions also provide places where exercise physiologist jobs can be found. Some exercise physiologists choose to specialize and will work with clients with special needs. Some areas of specialization are chronic illness or disease processes including cardiac or heart rehab, and pulmonary or lung rehab. Another growing field where an exercise physiologist can be utilized is psychosocial problems. Many exercise physiologist professionals even opt to work with amateur or professional athletes to cultivate optimal performance and fitness. Exercise physiologist jobs are often not readily available and easily recognizable. In some instances, extensive research is needed to obtain the position most suited to the individual. In other cases, exercise physiologist jobs can be created through research and presentation of the value of employing such a healthcare professional in a specific setting. For example, a company instituting a new wellness program may be interested in hiring an exercise physiologist to assure fitness goals include specific exercises that may increase productivity in addition to overall health. However difficult positions are to find, the fact remains that the demand for qualified exercise physiologists continues to grow. For example, a new and upcoming career choice for exercise physiologists is equine exercise physiology where the emphasis is on rehabilitation and training of horses. A degree in exercise physiology can lead to many unique career choices and options.

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What Are the Different Dosimetrist Jobs?

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A dosimetrist is an important member of any medical oncology team, because she is responsible for administering radiation treatments to cancer patients. There are three main dosimetrist jobs in this field: the actual job dealing with radiation, assisting the dosimetrist, and teaching this skill to others. All revolve around providing the patient with excellent care, efficient treatment and hopefully ridding the body of tumors and cancerous agents. The most common of all dosimetrist jobs is being the member of an oncology team that calculates and administers radiological treatment. This job has many responsibilities before, during and after treatment. Before treating a patient, the dosimetrist will review medical history and confer with a physician to determine the area to target and the radiation dosage necessary to administer. During the actual procedure, she prepares the body and shields unaffected areas from the radiation, but also monitors various computer programs to ensure the process is happening smoothly. After the radiation is complete, the dosimetrist must help the patient remove any shields, answer questions about side effects and fill out the proper paperwork in the patient file so doctors can be updated. Another important area of dosimetrist jobs are assistants. A dosimetrist must have a Bachelor's degree and also a great deal of specialized training, but the requirements for an assistant are usually less stringent. The assistant does not deal with calculating treatments, but mainly handles smaller details so the dosimetrist can focus. This can include helping prep the patient, testing equipment to make sure it is operational and handling patient comfort issues. This job is an important component of the oncology unit and larger programs will have several assistants to handle large amounts of patients. One type of dosimetrist job that is removed from the hospital and clinic setting is teaching. The skills needed to properly administer radiation safely and accurately usually require approximately 18 months of specialized training from experts. These courses focus heavily on the mathematical equations used for measuring radiation, courses on the effects and causes of various forms of cancer, and familiarization with the tools and equipment used to administer radiation. These courses are usually taught by experts that spent many years in the field of dosimetry. These dosimetrist jobs are all varied, but each contributes to the success of the others, and, ideally, to the improved health of the patients.

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What Are the Different Physics Jobs?

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A career in science and research can be an exciting opportunity for individuals with a background in physics. These professionals work with innovative technology, and their research paves the way to innovation ranging from planetary discoveries to disaster prevention. There are a variety of physics jobs available ranging from positions in laboratories to commercially funded projects. The most common job for someone with a physicist degree is that of a physicist. Some physicists work at government facilities, researching nuclear physics and reactors. Military physicists are responsible for tasks such as analyzing unexplained phenomena and developing weapons for space. Research scientists are another choice for physics jobs and are responsible for performing scientific experiments and analyzing research studies. These scientists perform investigations in a laboratory that may lead to discoveries in areas such as medicine and the environment. Other duties include designing clinical trials and writing scientific documents. Most facilities also require the scientist to submit documentation necessary to get funding for additional research projects. Astrophysicists, also known as astronomers, have a different category of physics jobs. An astrophysicist studies constellations and other planetary matter. Some tasks this scientist may be responsible for are studying the properties of nearby galaxies by using data from satellites and reviewing images from computerized telescopes. The majority of astrophysicists in the United States are employed with the National Aeronautics and Space Administration (NASA), the military or planetariums. Astrophysicists also use mathematical equations and physics to develop theories about space and the solar system. One of the physics jobs that use a combination of physics and seismology is that of a geophysicist. A geophysicist uses physics principles to study the earth’s movement and the planetary system. This researcher analyzes earthquakes and seismic movement to predict future disasters. Other responsibilities this person include studying the planets’ electromagnetic pull and using simulation software to simulate volcanic activity and tidal wave forces. Physicist professors prepare students for physics jobs by teaching classes in astronomy, orbital mechanics and physics. Professors teach undergraduate classes as well as courses for advanced degree programs. Instructors also demonstrate experiments to students and administer exams to students. Some professors represent the department at faculty meetings and write reports for physics lectures. Individuals who are interested in any number of the available physics jobs should get a degree in physics and take advanced classes in their specific field of interest. Most agencies require several years of laboratory experience. Students are encouraged to seek an internship with a governmental agency or research facility in order to meet this requirement.

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What Are the Different Types of Job Training?

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There are many different types of job training, including on-the-job training and computer-assisted training. Simulations are another popular way for individuals to gain job training. Many times, companies will utilize a job training center to teach all new employees. All of the available methods have different levels of effectiveness and are used in different situations. One of the most common types of training is on-the-job training. With this type of training, individuals will learn as they are working. Most of the time, this type of training comes from a fellow employee or a manager. The theory behind this type of training is that it is easier to learn by doing than by listening to theory. Many people learn better when they start performing the tasks they will be responsible for. On-the-job training is used by many different industries around the world. An example of this type of training is an apprenticeship program. For example, electricians and other tradesmen utilize the system to train new employees while they provide help at the same time.In many industries, companies rely on computer-assisted training modules to teach their employees. These companies develop computer software programs to help their employees learn. With this type of system, the employee can sit down at a computer and learn the basic concepts of the job within a very short period of time. One of the benefits of this method of learning is that the computer program will provide multiple methods of learning for the individual. Individuals can benefit from video, audio, and interactive lessons to learn about the job at hand. The multiple methods of learning accommodate every type of learner.Another type of training involves a job training center. Many large companies have departments completely dedicated to training their new employees. An individual will be hired to be in charge of training all individuals who come into the company. Many times, this type of training entails several days of lectures in a classroom by the trainer. This type of training can be beneficial because it allows individuals to learn with other new employees. This allows them to learn how to work in groups and interact with fellow employees. At the end of the training period, the new employees will usually be required to take a test to make sure the important aspects of the job have been covered.

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