P2_04 Making a Day Longer

The rotational speed of the Earth is very gradually slowing. This paper aims to investigate the possibility of artificially increasing the length of a day by accelerating the rate at which the Earth’s spin is slowing down

P2_8 How radioactive is a banana?

This paper assesses how radioactive a banana is and whether this is harmful. It is found that only a small percent of the total potassium in a banana is radioactive, and this small percent poses absolutely no risk to a person. It is found that a person would have to consume over 37 billion bananas to cause any risk of death, and that even surrounded by bananas, it would take over a billion to cause any harm

P2_7 A fire in a room

This paper looks at whether power generation has any effect on global temperatures. Assuming all energy used by humans is lost as heat which is kept in the atmosphere, it is found that the Sun contributes much more power. Also, the amount this energy would heat the atmosphere is calculated, and it is also found to be an insignificant amount

Research and Design of a Routing Protocol in Large-Scale Wireless Sensor Networks

无线传感器网络，作为全球未来十大技术之一，集成了传感器技术、嵌入式计算技术、分布式信息处理和自组织网技术，可实时感知、采集、处理、传输网络分布区域内的各种信息数据，在军事国防、生物医疗、环境监测、抢险救灾、防恐反恐、危险区域远程控制等领域具有十分广阔的应用前景。 本文研究分析了无线传感器网络的已有路由协议，并针对大规模的无线传感器网络设计了一种树状路由协议，它根据节点地址信息来形成路由，从而简化了复杂繁冗的路由表查找和维护，节省了不必要的开销，提高了路由效率，实现了快速有效的数据传输。 为支持此路由协议本文提出了一种自适应动态地址分配算——ADAR（AdaptiveDynamicAddre...As one of the ten high technologies in the future, wireless sensor network, which is the integration of micro-sensors, embedded computing, modern network and Ad Hoc technologies, can apperceive, collect, process and transmit various information data within the region. It can be used in military defense, biomedical, environmental monitoring, disaster relief, counter-terrorism, remote control of haz...学位：工学硕士院系专业：信息科学与技术学院通信工程系_通信与信息系统学号：2332007115216

P2_01 Gravitation Influence on the Pole Vault

A recent popular web comic claimed that differences in the acceleration due to gravity across the Earth could cause a significant difference in the heights attained by identical vaults in the pole vault. This paper seeks to quantify such variation and concludes that it can be as much as 1%