教堂彩绘玻璃图案在经编条带花边中的体现

当今有关描写教堂建筑内部装饰图案的文章有很多,而叙述经编条带花边设计的文章更是不胜枚举,但将二者结合在一起的研究却是从未有过。文章通过走访各大教堂进行考证,从教堂彩绘玻璃上装饰图案的造型特点出发,结合历史文献图片资料,对彩绘玻璃上图案的文化含义、造型结构进行了系统的概括,并通过分析图案的选取、打散重组等设计手法对图案进行二次设计,将其运用在经编条带花边的花型设计中。

电感自动成形编条机的研制

介绍新近研制的电感自动成形编条机的结构特点及整机关键技术的设计;

Fast estimation of fundamental matrix based on stripe constraints

In order to improve the performance of estimating the fundamental matrix, a key problem arising in stereo vision, a novel method based on stripe constraints is presented. In contrast to traditional methods based on algebraic least-square algorithms, the proposed approach aims to minimize a cost function that is derived from the minimum radius of the Hough transform. In a structured-light system with a particular stripe code pattern, there are linear constraints that the points with the same code are on the same surface. Using the Hough transform, the pixels with the same code map to the Hough space, and the radius of the intersections can be defined as the evaluation function in the optimization progress. The global optimum solution of the fundamental matrix can be estimated using a Levenberg- Marquardt optimization iterative process based on the Hough transform radius. Results illustrate the validity of this algorithm, and prove that this method can obtain good performance with high efficiency.

白腊条林经营技术

白腊枝条柔软、坚韧、抗拉力强,是我国北方各省重要的编条用材树种.根据白腊条林经营目的,需采取相应的管理措施,使其生长快,寿命长,提高条林的经营寿命.

自行车辐条的更换方法

自行车辐条锈蚀到一定程度时,应予更换。乍一看车轮上的辐条排列艰复杂,其实你不用愁,这里有规律可循。 穿条。轴身花盘上的孔有正反之分(如图)。

2008你的“桃花”开几朵?

女生喜欢被人追被人关注的感觉,桃花不怕多就怕没有。不管你现在是不是有男朋友,桃花要出现的时候可是挡都挡不住的。桃花不仅仅只是爱情方面的,也表示你很有人气哦。现在就让我们来测试一下来年你的桃花会开几朵呢?

Jordan 21限量版篮球

配合Jordan 21黑色款鞋子上市, 所用材质与Jordan 21鞋子相同,用于收藏而非比赛用球。

经验法计算自行车辐条长度尺寸

自行车轮辋条孔数由28孔改为36孔,辐条长度随之改变,需重新计算。辐条长度的计算方法习惯上按有关国家标准中的计算公式计算:

可以边走边唱微型“卡拉OK机”问世

最近,一种可随身携带以便边走边唱的微型“卡拉OK”机由日本发明投入市场。这种机子的大小如电子计算机,

迅达摩托车发动机常见故障及排除方法(一)

天津迅达摩托车公司生产的摩托车,目前有5种型号,即 K80 540—010A 型、K80 540—D11A 型、K80 540—011型和K100 540—011A 型、K100 540—011型。代号带“A”的为前后轮是编条轮辐,不带“A”字尾的为铝合金压铸轮盘。

Global Convergence of a New Restarting Three Terms Conjugate Gradient Method for Non-linear Optimizations

In this note,by combining the nice numerical performance of PR and HS methods with the global convergence property of FR method,a class of new restarting three terms conjugate gradient methods is presented.Global convergence properties of the new method with two kinds of common line searches are proved.

Bending and Washing Reliabilities of Screen-Printed UHF RFID Tags Based on Woven Water-Mark Fabric

Compared with bar code and quick response( QR) code in the storage and retailing management of textiles, the ultra-high frequency( UHF) radio frequency identification( RFID) tags have high information capacity as well as reliability in complex environmental conditions. In this study,the UHF RFID tags with perfect integration with textiles are assembled with screen-printed antenna on woven water-mark nylon fabric and Alien UHF integrated circuit( IC), and their reading performance under various washing and bending conditions is evaluated by an RFID reader. The results show that the tags after fifty bending( both arch and sink) cycles of screen-printed antenna still have reading distance more than 5.5 m,and an average reading distance is over 4.0 m after five washing cycles. The experimental results demonstrate that the tag antenna on the water-mark fabric can be manufactured by the screen-printing technology,and a coating process on this fabric facilitates the reading performance and the resistance against complex mechanical impact.

How can survival processing improve memory encoding?

We investigated the psychological mechanism of survival processing advantage from the perspective of false memory in two experiments.Using a DRM paradigm in combination with analysis based on signal detection theory,we were able to separately examine participants’utilization of verbatim representation and gist representation.Specifically,in Experiment 1,participants rated semantically related words in a survival scenario for a survival condition but rated pleasantness of words in the same DRM lists for a non-survival control condition.The results showed that participants demonstrated more gist processing in the survival condition than in the pleasantness condition;however,the degree of item-specific processing in the two encoding conditions did not significantly differ.In Experiment 2,the control task was changed to a category rating task,in which participants were asked to make category ratings of words in the category lists.We found that the survival condition involved more item-specific processing than did the category condition,but we found no significant difference between the two encoding conditions at the level of gist processing.Overall,our study demonstrates that survival processing can simultaneously promote gist and item-specific representations.When the control tasks only promoted either item-specific representation or gist representation,memory advantages of survival processing occurred.

Transcriptomics:Advances and approaches

Transcriptomics is one of the most developed fields in the post-genomic era.Transcriptome is the complete set of RNA transcripts in a specific cell type or tissue at a certain developmental stage and/or under a specific physiological condition,including messenger RNA,transfer RNA,ribosomal RNA,and other non-coding RNAs.Transcriptomics focuses on the gene expression at the RNA level and offers the genome-wide information of gene structure and gene function in order to reveal the molecular mechanisms involved in specific biological processes.With the development of next-generation high-throughput sequencing technology,transcriptome analysis has been progressively improving our understanding of RNA-based gene regulatory network.Here,we discuss the concept,history,and especially the recent advances in this inspiring field of study.

A Novel Quantum Covert Channel Protocol Based on Any Quantum Secure Direct Communication Scheme

By analyzing the basic properties of unitary transformations used in a quantum secure direct communication (QSDC) protocol, we show the main idea why a covert channel can be established within any QSDC channel which employs unitary transformations to encode information. On the basis of the fact that the unitary transformations used in a QSDC protocol are secret and independent, a novel quantum covert channel protocol is proposed to transfer secret messages with unconditional security. The performance, including the imperceptibility, capacity and security of the proposed protocol are analyzed in detail.