循环冗余校验的编码方法比较及文化价值简析

比较了循环冗余校验的除法编码与乘法编码结果,特别是冗余码点的分布特点。揭示了循环冗余校验码的经济、审美和认知价值。     

Return journey: ‘snakes in the swamp’

In 1985 Falmer Press published my first book, a classroom ethnography entitled Initial Encounters in a Secondary School, which helped establish me as an academic. However, it has long concerned me that the decade-long Victoria Road Lower School Project (as it came to be called) contained two resounding ‘silences’:

• Silence 1 concerned the changing autobiographical, authorial ‘selves’ that lay behind it.

• Silence 2 concerned the unknown impact ‘Initial Encounters’ had upon Lower School and the subsequent careers of the teachers who had featured in it. To investigate this last year I managed to trace and interview some 60% of the staff (15 in total) who had featured in the original study.

‘Return Journey’ is best regarded as an experiment in ‘retrospective ethnography’, raising issues relating to both the autobiographical self and the ethics of ethnography, neither of which were accorded much significance in the late 1970s at the time of the initial research.     

A Review of: “Training Paraprofessionals for Reference Service: A How-To-Do-It Manual for Librarians. 2nd ed. Morgan,Pamela J.”

QR codes, or “Quick Response” codes, are two-dimensional barcodes that can be scanned by mobile smartphone cameras. These codes can be used to provide fast access to URLs, telephone numbers, and short passages of text. With the rapid adoption of smartphones, librarians are able to use QR codes to promote services and help library users find materials quickly and independently. This article will explain what QR codes are, discuss how they can be used in the library, and describe issues surrounding their use. A list of resources for generating and scanning QR codes is also provided.     

伦理道德秩序过程性建设何以必要

社会主义伦理道德秩序的建设应注重过程性,因为社会主义市场经济体制的建设是一个漫长的过程。道德建设有相对的独立性,但归根结底要依赖于杜会经济基础的状况。     

对网页恶意代码的应对及预防

本文主要谈了IE浏览器被网页恶意代码修改设置的问题，并有针对性地从几个方面阐述了恶意修改后出现的问题及相应的恢复办法。     

柳州暗码理据探讨

柳州暗码单独来看,往往很难理解为什么说得那样无理怪诞,若从全国各行业暗码来比较,就容易看出都在语言学的平常道理之内.柳州暗码与全国各行业暗码同中有异.     

MIMO-OFDM系统中基于CIOD的发射分集方案

依据空时分组码的复正交设计理论的推广,推导了基于坐标正交设计(ClOD)的空时码构造方法,并在准静态平坦Rayleigh衰落信道中,对802.16d(e)中使用的四发射天线基于CIOD的发射分集配置方案A进行了性能仿真,结果表明这些码具有较低的译码复杂性,与基于复数正交设计的空时分组码的译码复杂度相当,但性能要好。     

环Z_(2k1+)上的广义准循环码

首先将广义准循环码的概念推广到环Z2k1+上,然后仿照Fq上广义准循环码的生成元的形式,给出了环Z2k1+上的1-生成元广义准循环码C的生成元的具体形式,最后通过给出C为Z2k1+自由模的充分条件,得出C为自由模时码C的维数及最小距离.     

论跨国公司生产守则的动力机制——基于法经济学的角度分析

跨国公司生产守则是跨国公司制定的具有一定自我约束力的内部行为规范。跨国公司主动实施生产守则,约束自己及其制造商品的行为,限制对劳工的过度剥削,这样做并没有改变它的获利目标,只是改变了利益最大化的位次,其实质是为了实现自身的长期利益。