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1641.心电信号的低噪声放大器
[信息传输、软件和信息技术服务业] [2015-07-07]
Wireless medical devices are currently in the spotlight due to rapid growth of interest in remote diagnosis systems and long-term medical assistances. In general, such medical device contains a sensor as a front-end to detect bio-signals of a patient or health-conscious person. The output of the sensor is extremely weak for further processing and susceptible to noise. Thus, a low-noise amplifier is connected to the sensor to amplify the original signal while minimizing the effect of noise. The performance of a low-noise amplifier (LNA) determines the quality of the original signals later on.
关键词：无线医疗设备；远程诊断系统；传感器
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1642.平流微模塑的透湿性模板印刷电子特性
[信息传输、软件和信息技术服务业] [2015-07-07]
Significant efforts have been made in recent years to develop new patterning methods for printed sensors and electronics that are simpler and allow for new materials to be patterned compared to traditional fabrication processes. One newly conceived patterning method is the use of advective micromolding in vapor-permeable templates (AMPT) [1]. AMPT is a single-step additive patterning process that uses permeation pumping to pattern and concentrate a nanoparticle ink inside a permeable template, resulting in close-packed nanoparticle features. This process can be performed at low pressure and temperature, and is compatible with printing materials such as nanoparticles and polymers that can be difficult to print with other methods.
关键词：可渗透模板；纳米粒子；电子特性
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1643.高可用性的分布式实时处理系统
[信息传输、软件和信息技术服务业] [2015-07-07]
Our Capstone project involves working with an open source distributed real time processing system called Apache Storm, in collaboration with Cisco Systems, Inc. The term “real time processing” in this context means that the system is able to respond within seconds or subsecond to requests, while “distributed” means that it is running on multiple computers. The goal of the project is to add a feature called “ksafety” to Storm. With ksafety, Storm will be able to tolerate up to k machine failures without losing data or reducing its response time, making the system highly available. Cisco plans to integrate our modified version of Storm into their data processing pipeline and use it to support internal and customerfacing products.
关键词：分布式实时处理系统；数据处理；可用性
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1644.可伸缩的事务可扩展的分布式数据库系统
[信息传输、软件和信息技术服务业] [2015-07-07]
With the advent of the Internet and Internet-connected devices, modern applications can experience very rapid growth of users from all parts of the world. A growing user base leads to greater usage and large data sizes, so scalable database systems capable of handling the great demands are critical for applications. With the emergence of cloud computing, a major movement in the industry, modern applications depend on distributed data stores for their scalable data management solutions. Many large-scale applications utilize NoSQL systems, such as distributed key-value stores, for their scalability and availability properties over traditional relational database systems.
关键词：互联网；分布式数据库系统；NoSQL系统
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1645.SIREN：类似地区借力用于高效精确变量调用
[信息传输、软件和信息技术服务业] [2015-07-07]
Next-generation genomic sequencing costs are rapidly decreasing, having recently reached the $1000- per-genome barrier, a likely tipping point for widespread clinical use. However, genomic analysis techniques have failed to keep pace. In particular, the process of variant calling, or inferring a sample genome from the noisy sequencing data, introduces major computational and statistical challenges. In this work, we explore the feasibility of a hybrid approach that addresses these challenges by partitioning the genome into easier and harder regions, deploying ecient algorithms on the easier regions, and relying on more expensive and accurate technologies in the harder regions. We propose that near duplication, or similarity, in the genome is a natural signal for identifying harder regions, and then present a large-scale distributed clustering approach to identify these similar regions.
关键词：基因测序；聚类方法；可行性
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1646.数据分析来发现见解
[信息传输、软件和信息技术服务业] [2015-07-07]
However, after our observations for a couple of weeks, we discovered a surprising fact: In many restaurants, there is always a constant number of staff throughout the day. Yet the number of customers coming in fluctuate greatly with time. For example, there are on average two transactions made per minute at La Vals, the pizza place, around 12pm, while there is only one transaction made in three minutes at 3pm. Number of staff, however, remains eight at any time in the day. In other words, restaurant owners are either over or under staffed most of the time. While labor cost is a burden for all restaurants but surprisingly, nobody is solving this problem. That’s why our capstone project is important.
关键词：数据分析；成本结构；劳动成本
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1647.新一代内存接口—解串器
[信息传输、软件和信息技术服务业] [2015-07-07]
This Capstone project aims to develop a novel memory controller to deliver a highbandwidth interface for the DDR4 memory standard. DDR4 is the current cutting edge memory standard developed by JEDEC. The high-bandwidth interface is used as a communication link between a memory controller operating at 400MHz and a DDR4 SDRAM. Our team developed a physical interface that can transmit 3.2Gbps of data using only one transmission line. The design consisted of five major sub-modules: 8 to 1 Serializer, Transmitter, Receiver, 2 to 8 Deserializer, and Clock-Generating circuits. This paper discusses the design process, as well as the final results, of the completed 3.2Gbps 2 to 8 Deserializer module. The Deserializer discussed in this paper takes two data-line inputs operating at 1.6Gbps each, and deserializes them onto eight data-lines operating at 400Mbps each.
关键词：内存控制器；高带宽接口；解串器
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1648.帕乔利的菱方八面体呈现问题
[信息传输、软件和信息技术服务业] [2015-07-07]
The depiction of the glass rhombicuboctahedron (RCO) appearing in a famous painting of Pacioli (1495) is analyzed as to how much it might agree with a physically correct rendering of a corresponding glass container half-filled with water. This investigation shows that it is unlikely that the painter of the RCO was looking at such a physical object. The question is then raised what a proper rendering of such an object might look like. Detailed computer renderings are presented that take into account multiple internal and external reflections and refractions.
关键词：RCO；玻璃；反射；折射
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1649.大型文本分析
[信息传输、软件和信息技术服务业] [2015-07-07]
We take an algorithmic and computational approach to the problem of providing patent recommendations, developing a web interface that allows users to upload their draft patent and returns a list of ranked relevant patents in real time. We develop scalable, distributed algorithms based on optimization techniques and sparse machine learning, with a focus on both accuracy and speed.
关键词：分布式算法；文本分析；机器学习
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1650.叶绿素：合成辅助编译器的低功耗架构空间
[信息传输、软件和信息技术服务业] [2015-07-07]
The Chlorophyll programming model allows programmers to provide their insight on program partitioning by specifying partial partitioning of data and computation. The Chlorophyll compiler relies on synthesis, sidestepping the need to develop classical optimizations, which may be challenging given the unusual architecture. To scale synthesis to real problems, we decompose the compilation into smaller synthesis subproblems: partitioning, layout, and code generation. We show that the synthesized programs are no more than 19% slower than highly optimized expert-written programs on the MD5 benchmark and are faster than programs produced by a heuristic, non-synthesizing version of our compiler.
关键词：叶绿素编程模型；编译器；数据分析
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