CS 668 - Spring ‘06
Student Research Presentations
(RB 122)
Date/Time Presenter Title
Monday, April 10 4:00 pm Fabien Poulard Utility of random generated graphs to
optimize peer-to-peer networks
Monday, April 10 4:30 pm Todd Chaffins Performance Comparison of Vertex
Coloring Algorithms on CPUs and GPUs
Wednesday, April 12 4:00 pm James Haberly Graph-theoretic image processing
techniques
Wednesday, April 12
4:30 pm
Mahbub Majumder Graceful labeling of trees
Monday, April 17 4:00 pm Hsiaoying Su Path-finding - An application of graph
theory in computer games
Monday, April 17 4:30 pm Mandeep Singh
Atwal
Tree Vertex Splitting Problem -
Applications to Distribution Networks
Wednesday, April 19 4:00 pm Bryan Ritz Analysis of Techniques Used in Drawing
Graphs with Subgraphs (with Case Study) See the following pages for abstracts.
Monday, April 10
4:00 pm
Utility of random generated graphs to optimize peer-to-peer networks
Fabien Poulard
The first peer-to-peer networks emerged with the Gnutella protocol in the early 2000, thanks to a team of developers at Nullsoft. When tested in a lab, the protocol was able to manage some hundreds nodes; but when released, it was quickly used by thousands of users, creating as much nodes and revealing the weaknesses of its conception. Since then the peer-to-peer has evolved and some others protocols have appeared, fixing partially the weaknesses of Gnutella. However, those protocols do not really implement a real peer-to-peer network, but a kind of topologically hybrid network sharing characteristics of the decentralized topology and some characteristics from other topologies (most likely hierarchy and centralized).
As at the origins the peer-to-peer was developed to share music files (Nullsoft develops a widely used mp3 player product) “illegally”, there was no more research to extend the capabilities and exploit the peer-to-peer networks. However, nowadays, peer-to-peer is considered as a possible topology for a lot of networks, and especially for the mobile device applications. So, improving the algorithms at the origin of Gnutella becomes industrially interesting.
Much progress has been achieved in the last few years, especially due to graph theory. The main issues to resolve are about preserving the connectivity of the graph when adding or removing a peer and in making the graph evolve towards an expander graph to optimize the exchanges between clients. However, the huge constraint is to make that happen with a minimum number of transactions considering that each manipulation of the network implies latencies and loss of packets that will have to be resent. Another issue is the fault tolerance, as each node can fail due to the extreme heterogeneity of the network, it must always be possible to find another path from one node to another.
The different techniques I will try to cover during the presentation are based on the random transformation of regular graphs and the de Bruijn graphs. We will see how they can be applied to the original Gnutella to improve its efficiency without losing its decentralized characteristics.
References
? Peer-to-peer Networks based on Random Transformations of Connected Regular Undirected Graphs, P. Mahlmann, C. Schindelhauer, ACM July 2005
? Graph-Theoretic Analysis of Structured Peer-to-Peer Systems : Routing Distances and Fault Resilience, D. Loguinov, J. Casas, X. Wang, IEEE/ACM Transactions on Networking ? Distributed Construction of Random Expander Networks, C. Law, K. Siu, IEEE INFOCOM
? The diameter of random massive graphs, L. Lu, Proceedings of the twelfth annual ACMSIAM symposium on Discrete algorithms
? Generating Random Regular Graphs, J.H. Kim, V.H. Vu, Proceedings of the thirty-fifth annual ACM symposium on Theory of computing
? On the Fundamental Tradeoffs Between Routing Table Size and Network Diameter in Peer-to-peer Networks, J. Xu, IEEE INFOCOM
Monday, April 10
4:30 pm
Performance Comparison of Vertex Coloring Algorithms on CPUs and GPUs
Todd Chaffins
Current high-end graphics processing units (GPUs) have evolved from dump co-processors with fixed functionality into highly capable stream processors. [Purcell, et al. 2002] In the ever-growing games industry there is a demand to be able to create more realistic graphics and effects. The current trend is to create these realistic graphics and effects through the use of graphics code known as shaders [Harris, et al. 2003]. Shaders are small pieces of code which determine how graphics are rendered on the screen. These shaders and their adoption in games require the graphics card manufacturers to create faster and more programmable GPUs. This pressure will continue and as such the speed and programmability of GPUs are set to continue to increase as time goes on. [Christen 2005]
This increase in processing power and the parallel nature of GPUs has led to the adoption of the GPU for general purpose computations outside of the realm of graphics. While the GPU has made vaster architectural changes over recent years CPUs have also made advances. Aside from the common increases associated with CPUs (clock speed and cache), CPUs have moved to be more parallel with a dual-core architecture. With parallel vertex-coloring algorithms [Kale, et al. 1995] the question is raised as to which approach will yield the fastest results when performing vertex-coloring: CPU based, GPU based, or a hybrid CPU/GPU approach. This research seeks to implement, instrument, and measure the performance of these approaches in a quantitative manner and evaluate the economy of these approaches.
References:
[Purcell, et al. 2002] Purcell, T.J., Buck, I., Mark, W.R. and Hanrahan, P. Ray Tracing on Programmable Graphics Hardware. In Proceedings of SIGGRAPH 2002, ACM / ACM Press. 2002.
[Christen 2005] Christen M.: Ray Tracing on GPU. Diploma thesis, University of Applied Sciences Basel, Switzerland, 2005.
[Kale, et al. 1995] L. V. Kale, B. H. Richards, and T. D. Allen. Efficient parallel graph coloring with prioritization. In Lecture Notes in Computer Science, volume 1068, pages 190{208. Springer-Verlag, August 1995.
[Harris, et al. 2003] Mark Harris, Greg James, Physically-Based Simulation on Graphics Hardware, GameDevelopers Conference, 2003.
Wednesday, April 12
4:00 pm
Graph-theoretic image processing techniques
James Haberly
The aim of my proposed topic would be to present an exposition on Graph Theoretic approaches and algorithms as they’re being researched for use in image processing and machine vision. Some example problems in the area of image processing and machine vision are; computational complexity, object recognition, object measurement, image segmentation, edge detection, noise detection and filtering, line, arc and other feature detection, image coding and compression.
The project will be focused on presenting how graph theoretic algorithms with examples such as the Prim and Kruskal algorithms for minimum spanning trees, Dijkstra’s and Dial's shortest path and graph theoretic Euclidean distance mapping techniques are being examined for problem solving in the image processing and machine vision fields.
I do not want to yet limit the scope of this proposal by proposing an exposition on any one paper or problem since I’m just beginning the research phase of the project. A couple specific areas that may become the main focus of the project are:
1. Improvements in computational speed using graph-theoretic image processing techniques [1].
2. Object recognition using a graph theoretical approach [2].
The image processing and machine vision industry is a fast growing and exciting field. I’m looking forward to researching the topic further.
References:
[1] “Faster Graph-Theoretic Image Processing via Small-World and Quadtree Topologies” Leo Grady and Eric L. Schwartz Dept. of Imaging & Visualization, Siemens Corp. Res. Inc., Princeton, NJ, USA; This paper appears in: Computer Vision and Pattern Recognition, 2004. CVPR 2004. Proceedings of the 2004 IEEE Computer Society Conference on Publication Date: 27 June-2 July 2004
Volume: 2, On page(s): II-360- II-365 Vol.2
[2] "Color Invariant Object Recognition using Entropic Graphs" Jan C. van Gemert, Gertjan J. Burghouts, Frank J. Seinstra, Jan-Mark Geusebroek Intelligent Systems Lab Amsterdam, Informatics Institute, University of Amsterdam, Kruislaan 403, 1098 SJ Amsterdam, The Netherlands.
[3] “Graph-Theoretical Methods in Computer Vision” Ali Shokoufandeh1 and Sven Dickinson2 G.B. Khosrovshahi et al. (Eds.): Theoretical Aspects of Computer Science, LNCS 2292, pp. 148–174, 2002.
Wednesday, April 12
4:30 pm
Graceful labeling of Trees
Mahbub Majumder
A tree T with n vertices is said to be gracefully labeled if its vertices are labeled with the integers [1..n] such that the edges, when labeled with the difference between their endpoint vertex labels, are uniquely labeled with the integers [1..n-1]. If T can be gracefully labeled, it is called a “graceful tree”.
The concept of graceful labeling of trees and graphs was introduced by Rosa (1967). The term “graceful labeling” was invented by Golomb (Golomb 1972). The Graceful Tree Conjecture states that all trees are graceful. There have been over 670 papers to date on various graph labeling methods and issues (Gallian 2005). So far, no proof of the truth or falsity of the conjecture has been found. Even though the conjecture is open, some partial results have been proved (Gallian 2005).
My motivation in pursuing this project came from its nature and the study many people have put into it. My aim with this project work is to
1.Find out current works and results.
2.Study and understand the condition of gracefulness
3.If possible, add some ideas in graceful Labeling
References:
Gallian J. A., A Dynamic Survey of Graph Labeling (2005), Electronic Journal of Combinatorics.
Golomb S.W. How to number a graph. In R.C. Read, editor, Graph Theory and Computing, pages 23-37. Academic Press, 1972.
Rosa A., On certain valuations of the vertices of a graph, Theory of Graphs (Internat. Symposium, Rome, July 1966), Gordon and Breach, N.Y. and Dunod Paris (1967) 349-355.
Monday, April 17
4:00 pm
Path-finding - An application of graph theory in computer games
Hsiaoying Su
Graph theory is widely used in solving and presenting computer games. One of the most common applications is path-finding. Path-finding algorithms grant agents in the virtual world the ability to consciously find their own way around the land. They can also be used in real life to find driving directions, such as the service offered by many popular web sites. The project is going to focus on the game implementation.
Path-finding algorithms are usually, but not only, used in computer games catalogued as role playing games (RPGs). Programmers build a virtual world for the games. The characters, or called autonomous agents, have certain level of artificial intelligence. The simplest way to present their intelligence is to find their own paths moving around the world without hitting a tree or going through a wall. The successful implementation of path-finding is important to the artificial intelligence performance of a game.
According to the numbers of sources and destinations, path-finding algorithms can be roughly divided into three categories: single source, single pair, and all pairs. In single source algorithms, the path from one node to all the others is required. However, single pair algorithms take a specific source and destination. Only one path is required in response. The all pairs algorithm returns the shortest paths from every node to all other nodes.
This project plans to explore different path-finding algorithms and their complexity. Furthermore, coding these algorithms in JEdit and practically experiment their efficiency. In single source algorithms, Dijkstra’s Algorithm and Bellman-Ford-Moore, which deals with negative arc-lengths graph, would be discussed. Then, the most popular algorithm A* (A star) would be presented to implement single-pair shortest path finding. To find out all-pairs shortest paths, the algorithms described above could be used in a na?ve but inefficient way. The project then would seek out whether there exist more efficient algorithms to solve the problem.
Path-finding related topics have been discussed on more application than research. However, there are still some interesting studies going on. One of a recent research is about solving incoherent behavior of multiple units in a cluttered environment. Another one is to discuss an open problem of emulating the rich complexity of real pedestrians in urban environment. The two papers are listed below as references.
References
?Kamphuis A., Overmars M. H.: Motion planning: Finding Paths for Coherent Groups using Clearance. In Eurographics/ACM SIGGRAPH Symposium on Computer Animation (2004).
?Shao W., Terzopoulos D.: Artificial intelligence for animation: Autonomous pedestrians. In Eurographics/ACM SIGGRAPH Symposium on Computer Animation (2005).
Monday, April 17
4:30 pm
Tree Vertex Splitting Problem - Applications to Distribution Networks
Mandeep Singh Atwal
In an Ethernet network, the number of connections (taps) and their intervening distances are limiting factors [BN90]. Repeaters are used to regenerate the signal every 500 meters or so [BN90]. If these repeaters were not used, “standing waves” (additive reflections) would distort the signal and cause errors [BN90]. Because collision detection depends partly on timing, only five 500-meter segments and four repeaters can be placed in series before the propagation delay becomes longer than the maximum allowed time period for detecting a collision [BN90].
Directed acyclic graphs (dags) or directed trees can be used to model such interconnection networks. Each edge of such a tree is labeled with a real number called its weight. Trees with edge weights are called weighted trees. Nodes or vertices in the tree correspond to receiving stations and edges correspond to transmission lines [HSR98]. Each edge weight corresponds to the delay in traversing that edge [HSR98]. However, as stated above, the network may not be able to tolerate losses in signal strength beyond a certain level.
In places where the loss exceeds the tolerance level, repeaters have to be placed. Given a network and a loss tolerance level Tree Vertex Splitting Problem is to determine an optimal placement of repeaters.
RESEARCH OBJECTIVES
The proposed research aims at the study of Tree Vertex Splitting Problem (TVSP). Designing the algorithms for TVSP and analyzing in terms of the computing time and space requirements. The most efficient algorithm can then possibly be implemented in
C++/Java.
However, it is not an objective to implement the algorithm for the proposed study. REFERENCES
[BN90] Barry Nance, Network Programming in C, QUE Corporation 1990,
ISBN: 0-88022-569-6, page # 23.
[HSR98] Ellis Horowitz, Sartaj Sahni, Sanguthevar Rajasekaran, Fundamentals of Computer Algorithms, Galgotia Publications’ Pvt. Ltd. 1998,
ISBN: 81-7515-257-5, page # 203.
[PRS98] Doowon Paik, Sudhakar Reddy, Sartaj Sahni, Vertex Splitting In Dags And Application To Partial Scan Designs And Lossy Circuits, International Journal of Foundations of Computer Science, 1998.
[ME93] Matthias Mayer, Fikret Ercal, Genetic Algorithms for Vertex Splitting in DAGs, Proceedings of the 5th International Conference on Genetic Algorithms, 1993, ISBN: 1-55860-299-2
[SR96] Stephanie Forrest, Genetic Algorithms, ACM Computing Surveys, Vol. 28, No. 1, March 1996.
Wednesday, April 19
4:00 pm
Analysis of Techniques Used in Drawing Graphs with Subgraphs
(with Case Study)
Bryan Ritz
In the paper “Drawing Graphs Within Graphs” [5] by Paul Holleis, Thomas Zimmermann, and Daniel Gmach, the authors present methods for helping to reduce complexity of large and complicated graphs and subgraphs. The methods of finding an optimal layout of subgraphs and a summary graph, of the use of connection sets, and of the use of motifs are all combined into an approach for emphasizing subgraphs within graphs. This paper will attempt to evaluate the worthiness of these methods through examination of sources used in the paper and by applying the methods to a case study in the form of a complex graph (displayed using JEdit).
References:
1. F. J. Brandenburg. Graph clustering 1: Cycles of cliques. In Proceedings of the Graph Drawing 1997, volume 1353 of Lecture Notes in Computer Science, Berlin, Germany, 1997. Springer.
2. G. Di Battista, P. Eades, R. Tamassia, and I. G. Tollis. Graph Drawing: Algorithms for the Visualization of Graphs. Prentice-Hall, Englewood Cliffs, N.J., 1999.
3. T. M. J. Fruchterman and E. M. Reingold. Graph drawing by force-directed placement. Software-Practice and Experience, 21(11):1129-1164, 1991.
4. T. Kamada and S. Kawai. An algorithm for drawing general undirected graphs. Information Processing Letters, 31(1):7-15, 1989.
5. P. Holleis, T. Zimmermann, D. Gmach. Drawing Graphs Within Graphs. Journal of Graph Algorithms and Applications, 9(1):7-18, 2005.
Case Study will use TouchGraph as applied to https://www.doczj.com/doc/0c13524693.html,.
1) Go to https://www.doczj.com/doc/0c13524693.html,/TGGoogleBrowser.html
2) Enter “https://www.doczj.com/doc/0c13524693.html,” without the quotes in the text field and hit enter.
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一概述 GST-DJ6000可视对讲系统是海湾公司开发的集对讲、监视、锁控、呼救、报警等功能于一体的新一代可视对讲产品。产品造型美观，系统配置灵活，是一套技术先进、功能齐全的可视对讲系统。 GST-DJ6100系列液晶室外主机是一置于单元门口的可视对讲设备。本系列产品具有呼叫住户、呼叫管理中心、密码开单元门、刷卡开门和刷卡巡更等功能，并支持胁迫报警。当同一单元具有多个入口时，使用室外主机可以实现多出入口可视对讲模式。 GST-DJ6100系列液晶室外主机分两类（以下简称室外主机），十二种型号产品： 1.1黑白可视室外主机 a)GST-DJ6116可视室外主机（黑白）； b)GST-DJ6118可视室外主机（黑白）； c)GST-DJ6116I IC卡可视室外主机（黑白）； d)GST-DJ6118I IC卡可视室外主机（黑白）； e)GST-DJ6116I（MIFARE）IC卡可视室外主机（黑白）； f)GST-DJ6118I（MIFARE）IC卡可视室外主机（黑白）。 1.2彩色可视液晶室外主机 g)GST-DJ6116C可视室外主机（彩色）； h)GST-DJ6118C可视室外主机（彩色）； i)GST-DJ6116CI IC卡可视室外主机（彩色）； j)GST-DJ6118CI IC卡可视室外主机（彩色）； k)GST-DJ6116CI（MIFARE）IC卡可视室外主机（彩色）； GST-DJ6118CI（MIFARE）IC卡可视室外主机（彩色）。 二特点 2.1 4*4数码式按键，可以实现在1~8999间根据需求选择任意合适的数字来 对室内分机进行地址编码。 2.2每个室外主机通过层间分配器可以挂接最多2500台室内分机。 2.3支持两种密码（住户密码、公用密码）开锁，便于用户使用和管理。 2．4每户可以设置一个住户开门密码。 2.5采用128×64大屏幕液晶屏显示，可显示汉字操作提示。 2.6支持胁迫报警，住户在开门时输入胁迫密码可以产生胁迫报警。 2.7具有防拆报警功能。 2.8支持单元多门系统，每个单元可支持1～9个室外主机。 2.9密码保护功能。当使用者使用密码开门，三次尝试不对时，呼叫管理中 心。 2.10在线设置室外主机和室内分机地址，方便工程调试。 2.11室外主机内置红外线摄像头及红外补光装置，对外界光照要求低。彩色 室外主机需增加可见光照明才能得到好的夜间补偿。 2.12带IC卡室外主机支持住户卡、巡更卡、管理员卡的分类管理，可执行 刷卡开门或刷卡巡更的操作，最多可以管理900张卡片。卡片可以在本机进行注册或删除，也可以通过上位计算机进行主责或删除。
Lemon Tree I'm sitting here in a boring room 我坐在这个无聊的房间里 It's just another rainy Sunday afternoon 周日的午后又下着雨 I'm wasting my time I got nothing to do 除了消磨时间我没什么事情可做 I'm hanging around I'm waiting for you 我徘徊我在等待你的到来 But nothing ever happens and I wonder 但什么也没有发生我很诧异 I'm driving around in my car 我开着车四处闲逛 I'm driving too fast I'm driving too far 我开的太快也开得太远 I'd like to change my point of view 我想换一个角度看待一切 I feel so lonely I'm waiting for you 我觉得好寂寞我在等着你 But nothing ever happens and I wonder 但什么也没有发生我很诧异 I wonder how I wonder why 我想知道怎么了我想知道为什么Yesterday you told me about the blue blue sky 昨天你还跟我说天空好蓝好蓝 And all that I can see is just a yellow lemon tree 但我却只看到一颗黄色的柠檬树 I'm turning my head up and down 我晃着脑袋上下观望 I'm turning turning turning turning turning around 我转来转去转来转去转来转去And all that I can see is just another yellow lemon-tree 看到的只是另一颗黄色的柠檬树 I'm sitting here I miss the power 我坐在这里我浑身乏力 I'd like to go out taking a shower 我想出去淋淋雨 But there's a heavy cloud inside my head 但脑海里萦绕着一片乌云 I feel so tired put myself into bed 我觉得好累只想躺在床上 Well, nothing ever happens and I wonder 什么事也没发生我很诧异 Isolation is not good for me 孤独并不适合我 Isolation, I don't want to sit on a lemon tree 我不想孤独地坐在柠檬树上 I'm stepping around in the desert of joy 我漫步在快乐的沙洲上 Baby anyhow I'll get another toy 宝贝无论如何我会找到另一个乐趣And everything will happen and you wonder 一切皆有可能到时候诧异的是你 I wonder how I wonder why 我想知道怎么了我想知道为什么Yesterday you told me about the blue blue sky 昨天你还跟我说天空好蓝好蓝 And all that I can see is just another lemon-tree 但我却只看到一颗黄色的柠檬树 I'm turning my head up and down 我晃着脑袋上下观望 I'm turning turning turning turning turning around 我转来转去转来转去转来转去 And all that I can see is just a yellow lemon tree 看到的只是另一颗黄色的柠檬树
F6门禁管理系统用户手册 目录 1.系统软件 (2) 2.服务器连接 (2) 3.系统管理 (3) 3.1系统登录 (3) 3.2修改密码 (3) 4.联机通讯 (4) 4.1读取记录 (4) 4.2自动下载数据 (5) 4.3手动下载数据 (5) 4.4实时通讯 (6) 4.5主控设置 (6) 5.辅助管理 (8) 5.1服务器设置 (8) 5.2系统功能设置 (9) 5.3读写器设置 (10) 5.4电子地图 (13) 6.查询报表 (14) 6.1开锁查询 (14) 7.帮助 (18) 7.1帮助 (18)
1.系统软件 图1 门禁管理软件主界面 F6版门禁管理系统的软件界面如上图，顶端菜单栏包括“系统管理”、“联机通讯”、“辅助管理”、“查询报表”和“帮助”菜单；左侧快捷按钮包括“系统管理”、“联机通讯”、“辅助管理”、“查询报表”、“状态”等主功能项，每个主功能项包含几个子功能，在主界面上可以不依靠主菜单，就可在主界面中找到每个功能的快捷按钮。以下按照菜单栏的顺序进行介绍。 2.服务器连接 如图2点击设置则进入远程服务器设置，此处的远程服务器IP地址不是指数据库服务器，而是指中间层Fujica Server服务管理器的IP地址。 图2 服务连接
图2 远程服务器设置 3.系统管理 3.1系统登录 系统默认的操作员卡号为“0001”，密码为“admin”，上班人员输入管理卡号和密码后可以进入系统，进行授权给他的一切操作。 图3 系统登录 3.2修改密码 修改密码是指操作员登录成功后，可以修改自己登录的密码。先输入操作员的旧密码，再输入新密码并确认，则密码修改成功。
Spirited Away C: I?ll miss you, Chihiro. Your best friends, Rile F: Chihiro, Chihiro, we?re almost there. M: This really is the middle of nowhere. I?ve got to go to the next town to shop. F: We?ll just have to learn to like it. Look, Chihiro, there?s your new school. Looks really good, doesn?t it? M: It doesn?t look so bad. C: It?s gonna stink. I liked my old school. Oh````Mom, my flowers are dying. M: I told you not to smother them like that. We?ll put them in water when we get to our new home. C: I finally get a bouquet, and it?s a good-bye present. That?s depressing. M: Daddy bought you a rose for your birthday. Don?t you remember? C: Yes, one. Just one rose isn?t a bouquet. M: Hold on to your card. I?m opening the window and quit whining. It?s fun to move to a new place. It?s an adventure. F: Wait, did I take the wrong turn? That can?t be right. M: Look, there?s our house. It?s that blue one on the end. F: Oh, you?re right. I must have missed the turn-off. This road should get us there. M: Honey, don?t take a short cut. You always get us lost. F: Trust me, it?s gonna work. C: What are these stones? They look like little houses. M: They?re shines. Some people think little spirits live there. C: Dad, I think we?re lost. F: We?re fine. I?ll get a full wheel drive. M: Sit down please, sweetie. Slow down. You?re gonna kill us. F: What?s that? M: What?s this old building? F: It looks like an entrance. M: Honey, get back in the car. We are going to be late. Oh for heaven?s sake. F: This building is not old. It?s fake. These stones are just made of plaster. C: The wind?s pulling us in. M: What is it? F: Come one. Let?s go in. I want to see what?s on the other side. C: I?m not going. It gives me the creeps. F: Don?t be such a scaredy cat, Hiro. Let?s just take a look. M: The movers will get to our house before we do. F: It?s alright. They?ve got the keys. They can start without us. M: Alright. Just a quick look. C: Forget it. I?m not going. Come on you guys, le t?s get out of here. F: Come on honey. It will be fun. C: I?m not going. M: Chihiro, just wait in the car then. C: But mom….Wait for me. F: Everybody watch your step. M: Chihiro, don?t cling like that. You make me trip. -What is this place? -Oh, do you hear that? - It sounds like a train. - We must be near a train station. - Come on. Let?s go and check it out. - What are those weird buildings? - I knew it. It?s an abandoned theme park. See? They built the everywhere in early 90s, then the economy went bad and they all went bankrupt. This must be one of them. - Where are you going? You said just a quick look. Now let?s go back. Did you hear that building? It was moaning. - It?s just the wind. Oh, what a beautiful place. We should have brought our lunch. Then we could have a picnic. - Look, they were planning to put a river here. En~~~ you smell that? Something smells delicious. - Yeah, I?m starving. - Maybe this theme park is still in business. Let?s go. - Chihiro, hurry it up. - Wait a minute! - Over there….This way. - How strange! They?re all restaurants. - Where?s everybody? - Aaa… There it is! Hey, I found it. Hi, you got to see this. In here. - Aaa… Look at this! - Hello in there. Does anybody work here? - Come in Hiro. It looks delicious. - Anybody? - Don?t worry honey. We can pay the bill when they get back. - Good plan. Hey that looks great. - I wonder what this is called. Oh… It?s delicious. Chihiro, you have to taste this. - I don?t want any. We?re gonna get in trouble. Let?s just get out of here. - Don?t worry. You?ve got daddy here. He?s got credit cards and cash. - Chihiro, you have to try this. It?s so tender. - Mustard? - Thank you. - Come on, you guys. You can?t - That?s weird. It?s a bath house. There?s the train. - You shouldn?t be here. Get out of here, now! - What? - It?s almost night. Leave before it gets dark. They are lighting the lamps. Get out of here. You?ve gotta get across the river. Go! I?ll distract them. - What?s up with him? - Mom, dad, come on, quit eating, let?s get out of here. Ahh~~~~Mom, dad, where are you?.....Water?!! What?... I?m dreaming! I?m dreaming! Come on, wake up! Wake up! This is a dream. Just a dream. Away, away. Disappear! Aaa~~~~~? I?m see-through! It?s just a bad dream. - Don?t be afraid! I just wantta help you. - No…No! - Open your mouth and eat this. You must eat some food from this world or else you?ll disappear. - No. - Don?t worry. It won?t turn you into a pig. Chew it and swallow. There you go. You?re all better. See for yourself. - I?m OK. - You see. Now come with me. - Where are my mom and dad? They didn?t really turn into pigs, did they? - You can?t see them now, but you will. Don?t move. That bird?s looking for you. You?ve gotta get out of here. - My legs, I can?t stand up. Help! What do I do? - Calm down. Take a deep breath. In the name of the wind and water within thee, unbind her. Get up. - You have to hold your breath when we across the bridge. Even the tiniest breath will break the spell and then everyone will see you. - I?m scared. - Just stay calm. I?m back from my mission. - Welcome back Master Haku. - Take a deep breath. Hold it. Hang on, almost there. - Master Haku, where?ve you been? What? A human? - Let?s go. - They know you?re here. - I?m sorry. I took a breath.
Lemon Tree一歌由Fool's Garden（傻子的花园）于2019年首唱，2019年，一曲“LEMONTREE”（柠檬树）使这支原本寂寂无名的德国5人乐队一下子红遍欧洲、亚洲，同时也有The brothers four演唱的美国乡村版，在被苏慧伦翻唱后也开始为国人熟知。台湾歌手王若琳在2011年9月23日发行的专辑《为爱做的一切》中翻唱此曲。 歌词 I'm sitting here in the boring room. 我呆坐在这了无生趣的房间。 It's just another rainy Sunday afternoon. 又是一个周日的午后，又是阴雨连绵。 I'm wasting my time, I got nothing to do. 我无事可做，我空耗着时间。 I'm hanging around, I'm waiting for you. 我不安地徘徊，我期待着你的出现。 But nothing ever happens, and I wonder. 但是你终究没有出现，我纳闷。 I'm driving around in my car. 我出去转转，驾着我的车。 I'm driving too fast, I'm driving too far. 我开得太快，我开得太远。 I'd like to change my point of view. 我宁愿转移一下我的注意力。
I feel so lonely, I'm waiting for you. 我仍感到如此孤单，我期待着你的出现。 But nothing ever happens, and I wonder. 但是你至今没有出现，我纳闷。 I wonder how, I wonder why. 我不知所措，我不明所以。 Yesterday you told me about the blue, blue sky. 昨天你给我描绘那蓝色的、蓝色的天空。 And all that I can see is just a yellow lemon tree. 但是我所看见的只有一株黄色的柠檬树。 I'm turning my head up and down. I'm turning, turning, turning, turning, turning around.我转着我的头，上上下下，我转啊、转啊、转啊、转啊、一遍又一遍 And all that I can see is just another lemon tree. 我所看见的只是另一株柠檬树。 Say,da ,da la da la, de la da,da la da la, de la da,da de le de da I'm sitting here, I miss the power. 我呆坐在这，我精疲力尽。 I'd like to go out taking a shower. 我宁愿出去沐浴一下。 But there's a heavy cloud inside my head. 但是这片阴云总在在我头脑中挥之不去。
ID一体式/嵌入式门禁管理系统 使用说明书
1 软件使用说明 （1）配置要求 在安装软件之前，请先了解您所使用的管理电脑的配置情况。本软件要求安装在（基本配置）： Windows 2000，windows xp操作系统； 奔腾II600或更高的处理器(CPU)； 10GB以上硬盘； 128MB或更大的内存； 支持分辨率800*600或更高的显示器。 （2）安装说明 在光盘中运行“智能一卡通管理系统”安装程序（ID版），按照安装提示依次操作即可。 安装数据库以后，有两种创建数据库的方式，手动创建和自动创建。手动创建：在数据库SQL Server2000的数据库企业管理器中，建立一个database(数据库)。进入查询分析器/Query Analyzer 运行智能一卡通管理系统的脚本文件，形成门禁数据库表；自动创建：在安装智能一卡通管理软件中自动创建默认门禁数据库，默然数据名：znykt。 上述安装完后，在安装目录下,在first.dsn 文件中设置其参数，计算机server的名字（无服务器时即本机名）和数据库database的名字。 在桌面运行智能一卡通管理系统运行文件，选择卡号888888，密码为123456即可进入系统。 2 人事管理子系统 部门资料设置 首先运行‘智能一卡通管理系统’软件后，进入软件主界面，如下图所示：
然后点击进入“人事管理子系统”，如图所示： 选择<人事管理>菜单下的<部门管理>或点击工具栏内的‘部门管理’按钮，则会出现如下所示界面： 在<部门管理>中可以完成单位内部各个部门及其下属部门的设置。如果公司要成立新的部门，先用鼠标左键单击最上面的部门名，然后按鼠标右键弹出一菜单，在菜单中选择“增加部门”，则光标停留在窗口右边的“部门编号”输入框中，在此输入由用户自己定义的部门编号后，再在“部门名称”输入框中输入部门名称，最后按 <保存>按钮，此时发现窗口左边的结构图中多了一个新增的部门。如果要给部门设置其下属部门，则首选用鼠标左键选中该部门，再按鼠标右键弹出一菜单，在菜单中选择“增加”，最后输入、保存。同时也可以对选中的部门或下属部门进行“修改”或“删除”。特别要注意的是，如果是“删除”,则被选中的部门及其下属部门将被全部删除，所以要特别谨慎。
简单电路》说课稿2 开场白：各位老师上午好，我今天说课的题目是《简单电路》，我主要从两大板块展开：说研究和说教学 第一板块：说研究 （一）说教材
《简单电路》教科版四年级下册第一单元《电》第三节，在本节课之前，学生已经认识了静电和电流的关系，清楚点亮小灯泡需要导线、电池；进而建构简单电路的科学概念，为接下来知识的迁移打下基础，也为第7节课《不一样的电路连接》串并联做铺垫。引领学生从前概念--科学概念--概念的迁移进行转化，而本节课正是构建科学概念的重点，因此本节课有重要的地位 （二）说学情 【知识基础】学生对简单电路认识停留在表面，知道点亮小灯泡需要电池和导线等材料，能动手连接电路，但缺乏对内部回路的认识。 因此我把本节课的重点设置为：在认识闭合回路的基础上连接电路 【认知困难】 学生能尝试连接点亮两只灯泡，但较难理解不同连接方式内部电流的流动规律 因此我把本节课的难点设置为：探究电路的不同连接方式，了解内部电流流动形成回路是点亮灯泡的基础 （三）说目标 基于学情以及新课标的要求，我设置了四维教学目标： 【科学概念】 1、知道简单的电路由电池提供电能。 2、了解电从电池的一端经过导线和用电器返回到电池的另一端，就组成了一个完整的电路。 3、知道使用相同的材料，电路可以有不同的连接方式。 【科学探究】 1、通过实物图与电路图的对比观察，了解闭合回路的形成。 2、通过“设计—实践”环节，发现让更多灯泡亮起来的不同的电路连接方式。 【科学态度】 激发对电探究的兴趣。 【科学、技术、社会与环境】 意识到电与生活息息相关
第二板块：说教学 我将从以下5点展开 一说教材处理 （1）教材以谈话法进行导入，缺乏直观感知与兴趣，对此我做了以下处理：
L e m o n T r e e中英文 歌词
精品文档 收集于网络，如有侵权请联系管理员删除 Lemon Tree I'm sitting here in a boring room 我坐在这个无聊的房间里 It's just another rainy Sunday afternoon 周日的午后又下着雨 I'm wasting my time I got nothing to do 除了消磨时间 我没什么事情可做 I'm hanging around I'm waiting for you 我徘徊 我在等待你的到来 But nothing ever happens and I wonder 但什么也没有发生 我很诧异 I'm driving around in my car 我开着车四处闲逛 I'm driving too fast I'm driving too far 我开的太快 也开得太远 I'd like to change my point of view 我想换一个角度看待一切 I feel so lonely I'm waiting for you 我觉得好寂寞 我在等着你 But nothing ever happens and I wonder 但什么也没有发生 我很诧异 I wonder how I wonder why 我想知道怎么了 我想知道为什么 Yesterday you told me about the blue blue sky 昨天你还跟我说天空好蓝好蓝 And all that I can see is just a yellow lemon tree 但我却只看到一颗黄色的柠檬树 I'm turning my head up and down 我晃着脑袋 上下观望 I'm turning turning turning turning turning around 我转来转去 转来转去 转来转去 And all that I can see is just another yellow lemon-tree 看到的只是另一颗黄色的柠檬树 I'm sitting here I miss the power 我坐在这里 我浑身乏力 I'd like to go out taking a shower 我想出去淋淋雨 But there's a heavy cloud inside my head 但脑海里萦绕着一片乌云 I feel so tired put myself into bed 我觉得好累 只想躺在床上 Well, nothing ever happens and I wonder 什么事也没发生 我很诧异 Isolation is not good for me 孤独 并不适合我 Isolation, I don't want to sit on a lemon tree 我不想孤独地坐在柠檬树上 I'm stepping around in the desert of joy 我漫步在快乐的沙洲上 Baby anyhow I'll get another toy 宝贝无论如何我会找到另一个乐趣 And everything will happen and you wonder 一切皆有可能 到时候诧异的是你 I wonder how I wonder why 我想知道怎么了 我想知道为什么 Yesterday you told me about the blue blue sky 昨天你还跟我说天空好蓝好蓝 And all that I can see is just another lemon-tree 但我却只看到一颗黄色的柠檬树 I'm turning my head up and down 我晃着脑袋 上下观望 I'm turning turning turning turning turning around 我转来转去 转来转去 转来转去 And all that I can see is just a yellow lemon tree 看到的只是另一颗黄色的柠檬树
九年级物理简单电路基础 知识测试题 Prepared on 22 November 2020
九年级物理第一章《简单电路》单元试题 一、基础识记 1、自然界存在_____种电荷，玻璃棒和丝绸摩擦时，玻璃棒带_____电荷；橡胶棒和毛皮摩擦时，橡胶棒带_____电荷；同种电荷相互________，异种电荷相互_________。 2、电荷的__________形成电流。把 __ 规定为电流的方向，负电荷定向移动的方向与电流方向______。在电源外部电流从_____极出发回到_____极。在电源内部电流从____极流向_____极。 3、电流的单位及换算：电流主单位________（用字母 _____表示）常用单位还有_______、。 1A= mA； 1mA= μA： 750 mA = A。 4、电流表的使用时：①电流表要_______联在电路中；②接线柱的接法要正确，使电流从______接线柱流入，从______接线柱流出；③被测电流不要超过电流表的 ______；④绝对不允许不经过用电器而把电流表连到电源的_______。电流表有两个量程：① A，每小格表示_____A；② A，每小格表示_____A。 5、_____是形成电流的原因，______是提供电压的装置；1节新干电池的电压___伏；家庭照明电压为____伏；安全电压是：_______伏．电压的主单位____ （用字母 表示）常用单位还有、。1KV= V；1V= mV； 360KV=_______mV。 6电压表的使用：①电压表要____联电路中；②使电流从____接线柱入，从____接线柱出；③被测电压不要超过电压表的______；在不知道电压大小时,可按从大到小的顺序采用______的方法。④可以直接接在电源两端，测的是 _____电压。电压表的量程：①0～3伏，每小格表示____伏；②0～15伏，每小格表示____伏。 7、串联电路电流特点是：；电压特点是： _______________________.。 并联电路电流特点是：；电压特点是： _______________________.。
lemon tree的中文对照歌词 I'm sitting here in a boring room.我坐在这间空屋子里 It's just another rainy Sunday afternoon。这也只不过是另一个下雨的周日下午。I’m wasting my time, I got nothing to do.除了消磨时间我没什模事情可做。 I’m hanging around, I’m waiting for you。我四处张望，我在等待你的到来。 But nothing ever happens, and i wonder.但是好像什莫事情也未曾发生，我不知道。 I’m driving around in my car.我开着车出去兜风。 I’m driving too fast, I’m driving too far。我把车开得很快，开了很远。 I’d like to change my point of view。我想换种方式生活，换个角度看世界。 I feel so lonely, I’m waiting for you.我感觉到如此孤单，我在等你回来。 but nothing ever happens, and i wonder.但是什莫事也未曾发生，我不明白为什莫会这样。 I wonder how, i wonder why。我不知道怎莫办，我不知道为什莫会这样。yesterday you told me about the blue, blue sky.昨天你还给我讲那蓝蓝的天空会多莫美丽，生活会多莫美好。 and all that i can see is just a yellow lemon tree。但是我看见的只有一株柠檬树。I’m turning my head up and down。我摆动着我的头，上下上下，不停的摆动着我的头。 I’m turning, turning, turning, turning, turning around.我前后左右的看。（我左看右看上看下看） And all that i can see is just another yellow lemon tree.（不管我怎莫看）它也只是一株黄色的柠檬树。 Sing: da, dadadada didada,dadada didada, dadidada. I’m sitting here, and i miss the power.我坐在这里，身上没有了一丝力气。 I’d like to go out taking a shower。我想出去展示一下我自己。 but there's a heavy cloud inside my head.但有一片阴云在我脑中挥之不去。 I feel so tired, and put myself into bed.我感觉如此的疲惫，回到了家里把自己扔到了床上。 while nothing ever happens, and I wonder。也许什莫也没发生过，谁知道呢？Isolation is not good for me 孤独对我不好 Isolation I don't want to sit on the lemon tree 我不想孤独地守着一颗柠檬树。I’m stepping around in a desert of joy.我在快乐的沙漠中踱步。 baby, anyhow I get another toy。宝贝，无论如何我要找到另外一种快乐。 and everything will happen, and you wonder。然后，所有事情都会发生，然而这一切你不会知道。 I’m turning my head up and down。我摆动着我的头，上下上下，不停的摆动着我的头。 I’m turning, turning, turning, turning, turning around.我前后左右的看。（我左看右看上看下看） And all that I can see is just another yellow lemon tree.（不管我怎莫看）它也只是一株黄色的柠檬树。 I wonder how, i wonder why。我不知道怎莫办，我不知道为什莫会这样。
《门禁系统使用说明书》
陕西********科技有限公司 单位地址：**************************** 联系电话：**************************** 目录 （ 1.1）软件系统---------------------------------------------------------------------------------------1-135 第一章软件基本操作...................................................................................................................... - 5 - 2.1进入操作软件 (5) 2.4人事管理 (7) 2.4.1 企业信息.................................................................................................................................................................. - 7 - 2.4.2添加/编辑部门信息 ................................................................................................................................................ - 9 - 2.4.2.1添加部门 ............................................................................................................................................................... - 9 - 2.4.2.2修改部门 ............................................................................................................................................................ - 10 - 2.4.2.3 删除部门 ........................................................................................................................................................... - 11 -
《千与千寻》always with me 中文歌词罗马音及日文歌词呼唤心灵深处的某个地方 总想保持令人心动的梦想 悲伤虽然无法尽数 在它对面一定能与你相逢 每次重蹈覆辙时人总是 仅仅知道碧空之蓝 虽然永无止境的道路看起来总在延续 这双手一定可以拥抱光明 别离时 平静的胸怀 虽然从零开始仍要侧耳倾听 活着的不可思议死去的不可思议 花，风，街道都一样 啦啦啦…… 啦啦啦…… 啦啦啦…… 呼唤心灵深处的某个地方 不论何时与我同在去描绘梦想吧 与其道尽悲伤的数目 不如用相同的双唇轻轻歌唱 走向尘封的回忆中总是 听得到不愿忘记的细语 即使是在 被粉碎的镜子上 也会映出崭新的美景 开始的清晨那宁静的窗口 因为将从零开始渐渐被充实 不再追寻大海的彼端 因为那闪光的东西一直就在这里 在我心中被发现 啦啦啦…… 啦啦啦……
1.yo n de i lu / mu ne no do ko ka o ku de 呼んでいる胸のどこか奥で 2、i tsu mo ko ko lo o do lu / yu me wo mi ta i いつも心踊る梦を见たい 3、ka na shi mi wa / ka zo e ki le na i ke le do 悲しみは数えきれないけれど 4、so no mu ko u de ki to / a na ta ni a e lu その向こうできっとあなたに会える 5、ku li ka e su a ya ma chi no / so no ta bi hi to wa 缲り返すあやまちのそのたびひとは 6、ta da a o i so la no / a o i sa wo shi lu ただ青い空の青さを知る 7、ha te shi na ku / mi chi wa tu zu i te mi e lu ke le do 果てしなく道は続いて见えるけれど 8、ko no li yo u te wa / hi ka li wo i da ke lu この両手は光を抱ける 9、sa yo na la no to ki no /shi zu ka na mu ne さよならのときの静かな胸 10、ze lo ni na lu ka la da ga / mi mi wo su ma se lu ゼロになるからだが耳をすませる 11、i ki te i lu fu shi gi / shi n de i ku fu shi gi 生きている不思议死んでいく不思议 ha na mo ka ze mo ma chi mo minna o na ji 12、ららら……（la la la ……） おおお……（o o o ……） るるる……（lu lu lu ……） 13、yo n de i lu / mu ne no do ko ka o ku de 呼んでいる胸のどこか奥で 14、i tsu mo na n do de mo / yu me wo e ga ko u いつも何度でも梦を描こう