752 research outputs found

    The NCAA\u27s Regulations Related to the Use of Agents in the Sport of Baseball: Are the Rules Detrimental to the Best Interest of the Amateur Athlete?

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    First, this Article will discuss the NCAA regulations applicable to all sports regarding the use of agents by amateur athletes. Next, this Article will discuss (i) the mechanics of the annual Major League Baseball draft, (ii) the factors that contribute to the necessity and desire for amateur baseball players to retain a competent agent or lawyer before they have extinguished their NCAA eligibility, and (iii) how the NCAA regulations are detrimental to both drafted and draft-eligible amateur baseball players. Finally, this Article will discuss how the NCAA should revise its regulations to better serve the amateur athlete in the sport of baseball without destroying the distinction between amateur and professional sports

    The Case for the Jury System

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    Online Demodulation and Trigger for Flux-ramp Modulated SQUID Signals

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    Due to the periodic characteristics of SQUIDs, a suitable linearization technique is required for SQUID-based readout. Flux-ramp modulation is a common linearization technique and is typically applied for the readout of a microwave SQUID multiplexer as well as since recently also for dc-SQUIDs. Flux-ramp modulation requires another stage in the signal processing chain to demodulate the SQUID output signal before further processing. For cryogenic microcalorimeters, the signal contains events that are given by a fast exponentially rising and slowly exponentially decaying pulses shape. The events shall be detected by a trigger engine and recorded by a storage logic. Since the data rate can be decreased significantly by demodulation and event detection, it is desirable to do both steps on the deployed fast FPGA logic during measurement before passing the data to a general-purpose processor. In this contribution, we show the implementation of efficient multi-channel flux-ramp demodulation computed at run-time on a SoC-FPGA. Furthermore, a concept and implementation for an online trigger and buffer mechanism with its theoretical trigger loss rates depending on buffer size is presented. Both FPGA modules can be operated with up to 500 MHz clock frequency and can efficiently process 32 channels. Correct functionality and data reduction capability of the modules are demonstrated in measurements utilizing magnetic microcalorimeter irradiated with an Iron-55 source for event generation and read out by a microwave SQUID multiplexer

    DTS-100G — a versatile heterogeneous MPSoC board for cryogenic sensor readout

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    Heterogeneous devices such as the Multi-Processor System-on-Chip (MPSoC) from Xilinx are extremely valuable in custom instrumentation systems. This contribution presents the joint development of a heterogeneous MPSoC board called DTS-100G by DESY and KIT. The board is built around a Xilinx Zynq Ultrascale+ chip offering all available high-speed transceivers using QSFP28, 28 Gbps FireFly, FMC, and FMC+ interfaces. The board is not designed for a particular application, but can be used as a generic DAQ platform for a variety of physics experiments. The DTS-100G board was successfully developed, built and commissioned. ECHo-100k is the first experiment which will employ the board. This contribution shows the system architecture and explains how the DTS-100G board is a crucial component in the DAQ chain
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