一种基于CAN总线的电子标签系统

电子标签技术广泛地应用于物流领域。作为一种相对简单的通讯协议，在电子标签系统中常采用的RS485串行通信口具有一定的局限性。提出用CAN总线的方式实现电子标签系统中与主机系统的数据通信，有效地克服了多节点同时发送请求的情况，提高丁系统的可靠性与实时性。     

商品条码印刷质量的快速检测算法设计与实现

现代经济活动中,商品条码用于标记商品身份及流通信息,如果条码发生错误,后果不堪设想,因此,在印刷环节进行条码质量检测显得尤为重要.针对商品条码常见印刷质量问题,提出一种高效式样检测算法,通过机器识别代替人工识别,改变传统条码检测中人工扫描条码检测方式,并为高速在线检测奠定基础.     

浅谈商品条码的应用及需要注意的几个问题

1．商品条码的应用简介 商品条码是商品流通的“共同语言”,是由一组规则排列、尺寸和颜色有一定规定的条、空及对应数字构成的特殊符号,是表示一定信息的商品标识。它是一种利用光电扫描阅读设备给计算机输入数据的特殊代码,以便于机器读出的形式传输信息,通常被印刷在商品外包装上。商品条码是实现商业现代化的基础,现已广泛应用于生产制造和流通、电子商务等领域。随着市场竞争日趋激烈,产品要想占据市场优势．商品条码显得尤为重要。     

商品条码在电子商务中的作用研究

电子商务正成为当下最为流行的经济模式,网购已经成为人们的消费习惯。商品条码作为产品的"身份证",极大方便了产品准确、高效、快捷、安全的流通,也为电子商务健康发展提供了强有力的标准技术支撑。本文重点介绍了商品条码在电商平台和电商物流中的作用,旨在引导电子商务各参与方快速准确、规范地应用商品条码。     

改进AdaBoost算法的条码识别

针对传统激光条码读写器受读取距离和条码形变等因素影响较大的缺点,提出一种基于决策树和AdaBoost算法融合的图像条码识别方法,采用5维特征提取法,结合条码图像特点,对条码图像进行标定.研究结果表明:本方法可以实现对视距内任意角度和距离条码的准确识别,并能有效识别脏污条码.该研究成果极大的方便了条码读取,可应用于物流系统检查、分拣货物等.     

商品条码的应用及需要注意的几个问题

商品条码是商品流通的＂共同语言＂,是由一组规则排列、尺寸和颜色有一定规定的条、空及对应数字构成的特殊符号,是表示一定信息的商品标识。它是一种利用光电扫描阅读设备给计算机输入数据的特殊代码,以便于机器读出的形式传输信息,通常被印刷在商品外包装上。商品条码是实现商业现代化的基础,现已广泛应用于生产制造和流通、电子商务等领域。随着市场竞争日趋激烈,产品要想占据市场优势,商品条码显得尤为重要。     

智能数据采集终端的数据处理与分析软件实现

随着现代物流产业的发展,需要快速的数据采集便携终端并需要终端具有强大的数据处理功能,对采集的数据能进行实时的处理并和服务器进行交互。智能数据采集终端基于目前流行的android操作系统,可以快速的进行条码扫描并进行处理,满足了现代物流业对便携和实时处理数据的要求,本文对这种终端的数据采集和处理流程做了详细的描述和解析。     

应用条形码技术实现仓储动态管理

在企业物流供应链中,产品从制造、仓储、配送、销售、运输等整个物流活动中可以利用物流条码来实现数据共享,通过条码识读设备来实现数据的自动识别和自动采集,使信息传递更为快捷、准确,从而提高整个物流系统的经济效益。随着物流行业在国内日益受到重视,物流信息化建设提上了日程,条码在物流企业中的应用前景也逐步显现。在石油化工行业,作为物流管理的工具,条码的应用主要集中在物料管理、生产线物流管理、仓储管理等环节。着重探讨应用条形码技术来实现仓储的动态管理。     

二维条码技术在医药行业物流管理系统中的应用

在分析二维条码特点的基础上,进一步讨论了物流条码技术特点和物流条码标识的内容,并通过对医药行业物流管理系统的条码使用分析,决定在系统的药品物流过程中的销售开票票据、药品库存、销售出库等方面应用PDF417二维条码.通过使用PDF417二维条码,医药行业物流管理系统解决了以往棘手的传输数据、降低成本、缩短送货时间等问题,使整个系统从一个全新的高度对各种信息的流动进行有效管理,完成其中的物流、信息流、资金流、增值流、业务流以及贸易伙伴关系等的计划、组织、协调和控制,加强了贸易伙伴之间的联系.     

规范商品条码应用成就现代企业

商品条形码由国际商品编码协会(GPI)规定,用于代表零售商品、非零售商品、物流单位和参与者所在地的代码。具体来说,条形码是由一组规则排列的条形码、空组合及其对应的人类可读字符组成的标记。商品条码的应用极大地方便了市场上商品的供销与管理,如何规范管理条形码的使用是维护商品市场秩序正常运营的重要手段。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.