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We present the design of a miniaturized multiple-band geodetic-grade GNSS reference antenna covering the Bs band of the Chinese Beidou System. The proposed antenna combines a spiral antenna operating in the L band (1160–1610 MHz) and a four-point-...

In the Global Navigation Satellite System (GNSS), the satellite clock bias (SCB) is one of the sources of ranging error, and its ability to predict directly affects the users' navigation and positioning accuracy. The BeiDou Navigation Satellite ...

The landscape of transformer model inference is increasingly diverse in model size, model characteristics, latency and throughput requirements, hardware requirements, etc. With such diversity, designing a versatile inference system is challenging. ...

In order to solve the problem of reduced classification accuracy caused by the different spatial features of EEG motor imagery signals between the same subjects on different days, this paper proposes an EEG feature extraction and recognition method ...

There is currently few related research in the field of drug detoxification to objectively quantify the degree of drug addiction among drug addicts. This paper designs an experimental paradigm, using a high-density near infrared spectroscopy device to ...

Order of shared memory accesses, known as the shared memory dependence, is the cornerstone of dynamic analyses of concurrent programs. In this paper, we study the problem of reducing shared memory dependences. We present the first online software-only ...

Recent studies have found that parallel garbage collection performs worse with more CPUs and more collector threads. As part of this work, we further investigate this enomenon and find that poor scalability is worst in highly scalable Java applications. ...

Inter-thread shared memory dependences are crucial to understanding the behavior of concurrent systems, as such dependences are the cornerstone of time-travel debugging and further predictive trace analyses. To enable effective and efficient shared ...

Parallel garbage collection has been used to speedup the collection process on multicore architectures. Similar to other parallel techniques, balancing the workload among threads is critical to ensuring good overall collection performance. To this end, ...

The Internet of Things (IoT) aims to integrate the digital world of the Internet with our encompassing physical world. However, existing IoT lacks to provide considerate services, meaning that sensors dynamically "collaborate" to provide context-aware ...

The detection system for harmonic is designed in this paper. The adopted microchip is LPC1114 with the built-in A/D device. The high precision signals of current and voltage are sampled by using the A/D device. The sampling data is analyzed by the ...

Small talk is an important social lubricant that helps people, especially strangers, initiate conversations and make friends with each other in physical proximity. However, due to difficulties in quickly identifying significant topics of common interest,...

According to Daniel Kahneman, there are two systems that drive the human decision‐making process: The intuitive system that performs the fast thinking, and the deliberative system that does more logical and slower thinking. Inspired by this model, we ...

For new social service providers (freshmen), it is critical to determine where to deploy the computational resources to best accommodate future client requests. Existing proposals on server placement rely on collecting and analyzing request history from ...

Buildings account for a considerable part of energy consumption. Prior research has shown that much energy could be saved by using occupancy based building automation techniques. One of the remaining challenges is how to collect real-time occupancy ...

Perpetual availability is an important operational goal in today's computer systems. However, achieving this goal is challenging because modern software systems contain faults that can cause them to fail. For example, multi-threading is widely used in ...

Data races are subtle and difficult to detect errors that arise during concurrent program execution. Traditional testing techniques fail to find these errors, but recent research has shown that targeted dynamic analysis techniques can be developed to ...

Trip detection is a fundamental issue in many context-sensitive information services on mobile devices. It aims to automatically recognize significant places and trips between them. The key challenge is how to minimize energy consumption while ...