Dongfeng General Hospital, the full name of Dongfeng Motor Corporation General Hospital and Dongfeng Hospital affiliated to Hubei Medical College, is a large-scale comprehensive national third-class hospital integrating medical , teaching, scientific research, prevention, rehabilitation and first aid. Over the years, Dongfeng General Hospital has been committed to the informatization of medical services and accelerated the implementation of systems based on information platforms, HIS and PACS to improve the hospital's service level and core competitiveness. With the development of the medical cloud era and the informatization of big data, the data center is the cornerstone of the supporting business, and the amount of business and data carried by it is rapidly increasing. The traditional data center can no longer meet the requirements of reliable, simple, and efficient maintenance. The new information technology room project is imminent. The data center of Dongfeng General Hospital is a new project, covering the low-voltage power distribution, uninterruptible power supply system, temperature control system and operation and maintenance system of the infrastructure layer. The entire data center has about 21 cabinets and needs to be within 2 months. Going online, so the task of going online and time is the top priority of the data center project. In addition to the requirement for efficient on-line, Dongfeng General Hospital, as a provincial benchmark, actively responds to the national green environmental protection plan, paying great attention to the efficient operation of the data center, requiring PUE design values ​​below 1.6. In response to the two needs of Dongfeng General Hospital, Huawei set up a special team to quantitatively evaluate the online time and PUE value, and finally presented a modular data center construction plan. The program was approved at one time and won the praise of Dongfeng General Hospital. . So, what are the advantages of a modular data center that can be favored by customers? Modular deployment for fast launch in two weeks The traditional data center is complicated to install, has a long construction period, and has high requirements for the installation environment such as decoration, fire protection, and grounding. It cannot meet the requirements for the Dongfeng General Hospital to go online within 2 months. Therefore, the traditional data center is not included in the design. The solution is replaced by Huawei's modular data center solution. The modular data center adopts the distributed power supply mode and the modular power supply overall power supply scheme. The internal components of the micro-module are pre-fabricated by the factory, and the data center is deployed and constructed in the form of “building blocksâ€. In theory, modular data centers have unique advantages, and the facts prove that. After the modular data center plan was determined, it took two weeks from the construction of the entrance to the completion of the construction, which was far lower than the requirements of the first two months of the Dongfeng General Hospital, and the rapid deployment of the project was realized. Decomposition diagram of micro-module inside the data center: the module is prefabricated by the factory, and the site is quickly deployed by means of “building blocksâ€
Everything You Need To Know About LED Lighting
2.LED stands for light-emitting diode.
A diode is an electrical device or component with two electrodes (an anode and a cathode) through which electricity flows - characteristically in only one direction (in through the anode and out through the cathode). Diodes are generally made from semi-conductive materials such as silicon or selenium - substances that conduct electricity in some circumstances and not in others (e.g. at certain voltages, current levels, or light intensities).
2.It`s really simple actually, and very cheap to produce, which is why there was so much excitement when LED lights were first invented!
When a light-emitting diode (LED) has a voltage source connected with the positive side on the anode and the negative side on the cathode, current will flow (and light will be emitted, a condition known as forward bias). If the positive and negative ends of the voltage source were inversely connected (positive to the cathode and negative to the anode), current would not flow (a condition known as reverse bias). Forward bias allows current to flow through the LED and in so doing, emits light. Reverse bias prevents current from flowing through the LED (at least up until a certain point where it is unable to keep the current at bay - known as the peak inverse voltage - a point that if reached, will irreversibly damage the device).
LED panel light,LED tube, led high bay light,led industry light Guangzhou Zhongzhinan Supply Chain Co.,Ltd. , https://www.gzzhongzhinan.com.jpg)
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LEDs are a simple invention with huge potential to change the lighting industry for the better. Don`t know much about them? Here are three big things you need to know to get your feet under you:
1.What Does LED Stand For?
2.A light-emitting diode is a semiconductor device that emits visible light when an electrical current passes through it. It is essentially the opposite of a photo-voltaic cell (a device that converts visible light into electrical current).
Did You Know? There is a similar device to an LED called an IRED (Infrared Emitting Diode). Instead of visible light, IRED devices emit IR energy when electrical current is run through them.
1.How Do LED Lights Work?
The p-type and n-type materials are created by introducing the original material to atoms of another element. These new atoms replace some of the previously existing atoms and in so doing, alter the physical and chemical structure. The p-type materials are created using elements (such as boron) that have less valence electrons than the intrinsic material (oftentimes silicon). The n-type materials are created using elements (such as phosphorus) that have more valence electrons that the intrinsic material (oftentimes silicon). The net effect is the creation of a p-n junction with interesting and useful properties for electronic applications. What those properties are exactly depends mostly on the external voltage applied to the circuit (if any) and the direction of current (i.e. which side, the p-type or the n-type, is connected to the positive terminal and which is connected to the negative terminal).
Application of the Technical Details to LED Lighting: