A relay is used in electrical engineering to register overcurrent, overvoltage, reverse power flow, and over- and under-frequencies to avoid accidents or flashovers. It trips the circuit breaker when a fault is detected. If there is any discrepancy or abnormality in the current voltage or any other power measurement, the relay detects it and triggers an alarm. There are two types of relay: electromechanical relays and digital relays. Solid-state relays are electronic switching devices that operate on application of small external voltage across control terminals. Solidstate relays are smaller than electromechanical relays and are more reliable as they do not have moving parts.

关键词：继电器；电气工程；跳闸断路器；检测故障

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The IoT is a network of physical, tangible objects that are interconnected through technology and can communicate among themselves and with the internal and external environment. It connects hardware devices, embedded software, communication services, and IT services. It creates smart communication environments such as smart homes, smart shopping, smart transportation, and smart healthcare. The major components of the IoT are RFID, WSN, NFC, cloud services, gateways, data storage and analytics, and visualization elements. The IoT can efficiently monitor and manage many interconnected devices. With the advances in the IoT and the use of a network interface, smart machines can monitor and control various objects using microcontrollers via the internet from a remote location. The adoption of the IoT is expected to grow significantly during the forecast period because of the increased Wi-Fi and LTE wireless connectivity

关键词：物联网；通过技术；互联网络；内部和外部；环境沟通；智能购物

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Vietnam has transformed from one of the poorest countries in the world to a lower-middleincome country in less than three decades. The country has met five of the ten Millennium Development Goals set by the United Nations. To attain two more goals by 2015, Vietnam is focusing on strengthening its infrastructure. In 2013, when the country's economy grew by 5 percent, construction spending grew by 6.68 percent. With the availability of credit facilities for the middle- and low-income population, the Residential Construction segment is expected to grow and drive the Construction market in Vietnam in the coming years.

关键词：越南；重点加强；基础设施建设

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Welding is a type of fabrication process used for repairing metal and non-metal components and products in Manufacturing industries. Many industries need welding technology because it provides an efficient and easy method to join two materials. The welding process is used in various industries such as Automotive, Shipbuilding, Aerospace, Energy, Oil and Gas, Offshore, and Construction. End-users use metals, gases, and other consumables for the welding process.

关键词：焊接；修复；金属；非金属组分；制造工艺；焊接工艺

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Waterjet machines provide an efficient method for developing intricate machine parts with relative ease and precision. These machines facilitate versatile and effective machining, cutting, and shaping of metals and other materials. A waterjet machine uses a pump to eject water at an extremely high pressure (approximately 6,000 bars) through a nozzle and flushes out a cutting jet of water to cut metals. There are two types of waterjet machines: pure waterjet machines and abrasive waterjet machines. Waterjet machines are used across several industries such as Automotive, Die Mold, Part Manufacturing, Aerospace, Defense, Shipbuilding, Electric and Electronic, Healthcare, Consumer Durables, Plastics, Woodwork, Food Processing, Glass Work, and Robotics, and also in several Job Shop sectors. These machines generate less heat compared to other cutting technologies, and can, therefore, be used on materials that are very sensitive to high temperatures. Waterjet machines also help ensure minimal wastage of the metal.

关键词：高压水机；机器零件；容易；精确度；水射流切割金属

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A smart grid networking platform consists of three components, namely, hardware, software, and services. Hardware includes cables, switches, in-home devices, and controllers. These devices are backed up by networking software, which consists of network performance monitoring management, IP address management, network traffic management, network device management, network configuration management, network security management, and other related software. These hardware and software components coordinate to develop a mesh network that provides a utility grid with features such as substation automation, distribution automation, energy management, real-time control, self-healing, and increased reliability and security. Smart grid networking systems enable a utility to analyze and map the energy consumption patterns of its customers, thereby helping in load forecasting and peak demand management along with risk determination. The systems also enable the reduction of power outages by providing detailed information about the functioning status of the power system network. With the rapid development of smart grids and smart grid-related equipment and solutions, management of huge data volumes has become a major concern among power utilities.

关键词：智能电网；网络平台；设备备份；网络软件；网络性能；监控管理

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An increase in the demand for energy worldwide has increased onshore oil and gas E&P activities. Increased industrialization along with rapid growth in the population has led to a rise in global oil and gas consumption. The application of advanced technologies to enhance reservoir recovery has helped in increasing production from brown field sites and unconventional oil and gas resources.

关键词：全球；能源需求；陆上油气E＆P；油藏采收率

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Skid-steer loaders are compact in size, have a small rigid frame, and have an engine-powered machine with lift arms. They are used to perform a variety of tasks in the Construction industry. They can be easily fitted with attachments and labor-saving tools to perform several tasks on the construction site. This equipment is highly maneuverable because of its compact size, and the ability to support attachments makes it even more versatile.

关键词：滑移装载机；刚性框架；发动机驱动；机提升臂

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Cell culture protein surface coating is performed to enhance the adhesion and proliferation of cells during in vitro isolation and cultivation. For surface coating, the inner surface of the Petri dish is coated with ECM components or proteins such as fibronectin, laminin, collagen, vitronectin, and osteopontin. These proteins can be human-derived, animal-derived, plantderived, or synthetic. Protein surface coating facilitates the growth of various types of cell such as endothelial, epithelial, fibroblasts, leukocytes, myoblasts and muscle cells, neurons, and CHO cell lines.

关键词：细胞培养物；蛋白质；表面涂层；粘附和增殖；体外分离；培养细胞

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Sports medicine refers to a division of medicine that concentrates on physical fitness, treatment, and prevention of sports and exercise-related injuries. It also helps in assessing and understanding the performance of athletes. It includes sports injury prevention and treatment, exercise for health, recommendations for training, and nutrition and medicine in sports.

关键词：运动医学；体能；治疗；预防运动；运动相关；伤害；评估和理解；运动员；表现

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