The excitation spectra associated with the 7 F 0↦ 5 D 0 transition of Eu +3 has been used to examine the binding sites on cell wall fragments of Datura innoxia. Both native and esterified cell wall fragments were each examined at pH 5 and pH 2 to determine the contributions to metal ion sorption from both the carboxylate and sulfonate functional groups. The excitation spectra have been de-convoluted into the individual groups responsible for metal ion uptake. At least four unique binding sites can be described as being responsible for metal ion uptake. The higher affinity sites involve carboxylates in the binding of Eu +3 in a tridentate (3:1 ligand-to-metal ratio) configuration.
The binding energy between chains in a body-centered tetragonal structure, consisting of infinite charge doublet chains parallel to the c axis, is considered as a function of two lattice parameters. Graphs are plotted of the variation of the binding energy with these parameters. The results are applied to the particular case of metaldehyde.
This paper presents CIFER, the world's first opensource, fully cache-coherent, heterogeneous many-core, CPU-FPGA SoC. The 12nm, 16mm2 chip integrates four 64-bit, OS-capable, RISC-V application cores; three TinyCore clusters that each contain six 32-bit, RISC-V compute cores (18 in total); and an EDA-synthesized, standard-cell-based eFPGA. CIFER enables the decomposition of real-world applications and tailored execution (parallelization or specialization) per decomposed task. Our evaluation shows that: 1) the TinyCore clusters increase the throughput and energy efficiency of data-and thread-parallel tasks by up to 7.95× and 7.75× over one 64-bit core, respectively; 2) the eFPGA increases the throughput and energy efficiency of hardware-accelerable tasks by up to 9.29× and 10.62×, respectively; 3) using coherent caches for data transfer between the processors and the eFPGA increases the throughput and energy efficiency by up to 11.1× and 10.5×, respectively.
Long range ultrasonic testing (LRUT) is an emerging non-destructive testing (NDT) ultrasound testing method. The LRUT technique uses low frequency ultrasonic guided waves to inspect plates and pipes efficiently for corrosion and other degradation. Increasing numbers of requirements for quick long range pipeline inspection have led to urgent need for improvement of testing methods and the development of new testing equipment to help the researchers in laboratory and help technicians in field inspection. The market for multi-channel ultrasonic instruments is characterized by small volumes of sales and a high ratio of development costs to sale price. The consequence is that the investment required to develop an instrument is significant and upgrades and other changes to instrument specification or configuration are difficult for many manufacturers to justify. These factors are particularly relevant for long range guided wave technology, where the technology is still relatively new in the market place and the instrumentation has different characteristics from other type of ultrasonic systems. In order to support the design and manufacture of the Teletest® FOCUS+ system, Plant Integrity Ltd has supported this study into the use of a fully programmable gate array (FPGA) based control circuits for the electronics, which allows the component count to be decreased and also permits the of the system to support future functions to be modified via flexible reconfiguration of the FPGA. This has benefits of reduction of size, weight and power consumption of the electronics and provides a means of upgrading the product without expensive re-design of hardware.
Abstract Cadmium single crystals prestrained on the pyramidal glide systems at 293 K have been tested in shear on the basal plane at 77 K. The strain rate sensitivity of the flow stress on the basal system after pyramidal hardening was found to be lower than it is in an uninterrupted test on the basal plane, indicating that pyramidal dislocations provide obstacles to slip of longer range than those introduced during a normal tensile test.
As Moore's Law is coming to an end, heterogeneous SoCs have become ubiquitous, improving performance and efficiency with specialized hardware. However, the addition of hardware accelerators makes data supply more challenging. Feeding data to accelerators becomes a bottleneck, especially for data-intensive workloads such as graph analytics, sparse linear algebra, and machine learning applications. DECADES addresses this issue with a combination of accelerators, embedded FPGA (eFPGA), and its unique ''intelligent storage'' (IS) tile. DECADES is one of the largest chips ever built in academia and has the highest core count of cache-coherent, OS-capable, 64-bit RISC-V processors.
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