2015年

Choose an intellectual or creative opportunity (for example, community involvement, a summer program, a unique project, travel abroad, etc.) from your high school years that you have enjoyed and highlight how you have grown personally because of the experience.
翻译：选择一个你所享受的在高中时代运用智力或创造力的机会（例如社区活动、暑期研究、独特的项目、出国旅行、等等），突出你是如何通过这一经历得到个人成长的。
解析：AADPS分类I-b
字数限制：200词

I designed a body balance ability monitor to help pensioners prevent falls that lead to fracture, dislocation, or worse.

With literature research and discussion with my advisor, I sought to help our grandmas/grandpas to be constantly aware of their balance ability. Existing solutions involve expensive equipment or even a full-fledged lab, so I aspire to attain the same goal with a wearable device.

Taking advantage of the rich resources in the open-source hardware community, I quickly built up a 3-pieces prototype that collects real-time data from waist and ankle accelerometers. However, my challenge turned out to be designing a whole new methodology that correlates acceleration with balance ability. I first tried to analyze the period, yet soon discovered that even for the same person, the walking pace could change drastically within a day. Then I moved the focus to the tiny "spikes" of the gait patterns, which ended up being a wild goose chase. Eventually, I settled with the Fourier transform, which vividly demonstrates the interplay between the spectrums of the waist and ankles.

To prove the value of my work, I tested at home, on the street, and even at the China Rehabilitation Research Center. Taking advantage of the new data, I eventually produced the formula for an easy-to-understand Balance Index. Later on, I built upgrade models and developed a smartphone app. Now reliable BI reading can be obtained after walking for a couple of minutes, and my project earned the grand prize at a national science fair.

留学文书译文（机翻）：

我设计了一个身体平衡能力监护仪，帮助养老金领取者防止摔倒，从而导致骨折、脱位或更糟的情况。

通过文献研究和与导师的讨论，我试图帮助我们的祖母/祖父母不断意识到他们的平衡能力。现有的解决方案涉及昂贵的设备，甚至是一个成熟的实验室，因此我渴望通过可穿戴设备实现同样的目标。

利用开源硬件社区丰富的资源，我很快建立了一个3件套的原型，从腰部和脚踝加速计收集实时数据。然而，我的挑战是设计一种全新的方法，将加速度与平衡能力联系起来。我第一次尝试分析这段时间，但很快发现，即使是同一个人，步行速度也可能在一天内发生剧烈变化。然后我把注意力转移到步态模式的微小“尖峰”上，结果是徒劳的追逐。最后，我决定使用傅立叶变换，它生动地展示了腰部和脚踝光谱之间的相互作用。

为了证明我的工作的价值，我在家里，在街上，甚至在中国康复研究中心进行了测试。利用这些新数据，我最终得出了一个易于理解的平衡指数公式。后来，我建立了升级模型并开发了一个智能手机应用程序。现在，步行几分钟就可以获得可靠的双语阅读，我的项目在一次国家科学博览会上获得了大奖。

标化条件：GPA 3.0 TOEFL 97 ACT 28

AADPS老师文书点评：对一个项目过程的描述一般要注意说明清楚背景、分析遇到的关键困难和解决方案、以及展开未来的计划与里程碑。

家长感言：AADPS经验丰富，服务靠谱。