999 resultados para NETTRA-G3-FIFO


Relevância:

100.00% 100.00%

Publicador:

Resumo:

Thesis (M. S.)--University of Illinois at Urbana-Champaign.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Australia is experiencing an unprecedented expansion in mining due to intense demand from Asian economies thirsty for Australia’s non-renewable resources, with over $260 billion worth of capital investment currently in the pipeline (BREE 10). The scale of the present boom coupled with the longer term intensification of competitiveness in the global resources sector is changing the very nature of mining operations in Australia. Of particular note is the increasingly heavy reliance on a non-resident workforce, currently sourced from within Australia but with some recent proposals for projects to draw on overseas guest workers. This is no longer confined, as it once was, to remote, short term projects or to exploration and construction phases of operations, but is emerging as the preferred industry norm. Depending upon project location, workers may either fly-in, fly-out (FIFO) or drive-in, drive-out (DIDO), the critical point being that these operations are frequently undertaken in or near established communities. Drawing primarily on original fieldwork in one of Australia’s mining regions at the forefront of the boom, this paper explores some of the local impacts of new mining regimes, in particular their tendency to undermine collective solidarities, promote social division and fan cultural conflict.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

We present an implementation of a multicast network of processors. The processors are connected in a fully connected network and it is possible to broadcast data in a single instruction. The network works at the processor-memory speed and therefore provides a fast communication link among processors. A number of interesting architectures are possible using such a network. We show some of these architectures which have been implemented and are functional. We also show the system software calls which allow programming of these machines in parallel mode.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Previous studies have shown predominant association of G10P11 type bovine rotavirus-derived reassortant strains with asymptomatic infections in newborn children in India. To understand the epidemiological and genetic basis for the origin of these strains in humans, the relative frequencies of different serotypes among bovine rotaviruses (BRVs) isolated from southern, western and central regions of the country were determined by subgroup and serotype analysis as well as nucleotide (nt) sequence analysis of the genes encoding the outer capsid proteins VP4 and VP7. Since the human G10P11 asymptomatic neonatal strain I321 possessed NSP1 from a human rotavirus, to determine its genetic origin in the bovine strains, comparative analysis of partial gene sequences from representative G10P11 strains was also carried out. The following observations were of great epidemiological significance, (i) G10P11 strains predominated in all the three regions with frequencies ranging between 55.6% and 85.2%. In contrast to the high prevalence of G6 strains in other countries, only one G6 strain was detected in this study and G8 strains represented 5.8% of the isolates, (ii) among the G10 strains, in serotyping ELISA, four patterns of reactivity were observed that appeared to correlate with the differences in electropherotypic patterns and amino acid (aa) sequence of the VP7, (iii) surprisingly, strains belonging to serotype G3 were detected more frequently (10.7%) than those of serotypes G6 and G8 combined, while strains representing the new serotype (G15) were observed in a single farm in Bangalore, and (iv) about 3.9% of the isolates were nontypeable as they exhibited high cross-reactivity to the serotyping MAbs used in the study. Comparative analysis of the VP7 gene sequence from the prototype G3 MAb-reactive bovine strain J63 revealed greatest sequence relatedness (87.6% nt and 96.0% aa) with that of serotype G3 rhesus-monkey strain RRV. It also exhibited high sequence homology with the VP7 from several animal and animal rotavirus-related human G3 strains (Simian SA11; equine ERV316 and FI-14. canine CU-1 and K9; porcine 4F; Feline Cat2 and human HCR3, YO and AU1). Partial nucleotide sequence analysis of the NSP1 gene of J63 showed greatest nt sequence homology (95.9%) to the NSP1 gene allele of the Indian G8 strain, isolated from a diarrheic child, which is likely to have been transmitted directly from cattle and 92.6% homology to that of the bovine G8 strain A5-10 suggesting the likely origin of J63 by gene reassortment between a bovine G8 strain and a G3 animal strain. Prevalence of G10P11 strains in cattle and G10P11 or P11 type reassortant strains in asymptomatic neonates as well as detection of G8P[1] strains in diarrheic children support our hypothesis for bidirectional transmission of rotaviruses between humans and cattle and origin of novel strains catalyzed by the age-old traditions and socio-economic conditions in India.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

本设计实现了HIRFL-CSRe同步系统控制器DSP插件内的FPGA中的FIFO(First in first out)功能,数据入口是16位DSP总线,数据出口是16位DAC总线。其核心机制采用双缓冲"乒乓操作",并在FPGA内完成一次线性插值。程序采用VHDL硬件描述语言在Altera公司的现场可编程逻辑器件ACEX1K30上实现。FIFO实现机制完全自行设计,解决了传统异步FIFO由于读写时钟异步造成的空/满标志难以准确给出及数据输出时间不能精确保证的难题,满足了HIRFL-CSRe对于输出数据不间断(每微秒一个)的要求,并由于在FPGA内实现了一次线性插值,从而把从DSP中接收到的已插值数据量增加了一倍,在宏观上降低了DSP的数据运算量。模块经现场工作证实FIFO数据输出时间误差控制在40ns内,达到设计要求。

Relevância:

20.00% 20.00%

Publicador:

Resumo:

针对超大规模集成电路和片上系统设计中确定异步FIFO浓度的问题,根据异步FIFO运行时的属性提出FIFO动态参数模型,该模型包括FIFO饱和度、写入端和读出端数据传输率及上溢/下溢频率。在该模型的基础之上,分析异步FIFO的深度与动态参数之间的关系,采用功能仿真方法确定片上系统中异步模块之间数据传输所需FIFO的深度。对典型实例的分析表明,采用这种方法能够在保证系统数据通信性能的前提下,获得最小的FIFO深度,优化系统资源的使用。

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The G3, CBS-QB3, and CBS-APNO methods have been used to calculate ΔH and ΔG values for deprotonation of seventeen gas-phase reactions where the experimental values are reported to be accurate within one kcal/mol. For these reactions, the mean absolute deviation of these three methods from experiment is 0.84 to 1.26 kcal/mol, and the root-mean-square deviation for ΔG and ΔH is 1.43 and 1.49 kcal/mol for the CBS-QB3 method, 1.06 and 1.14 kcal/mol for the CBS-APNO method, and 1.16 and 1.28 for the G3 method. The high accuracy of these methods makes them reliable for calculating gas-phase deprotonation reactions, and allows them to serve as a valuable check on the accuracy of experimental data reported in the National Institutes of Standards and Technology database.