, cold split)
The casting has external or internal penetration or non-penetration cracks. The appearance of the oxidation surface with a dark or black color is tortuous during hot split. Cold split is a clean brittle crack with a flat fracture surface and a metallic luster or slight oxidation color.
Cause:
The content of medium carbon and silicon in molten iron is too low, and the content of sulfur is too high;
The pouring temperature is too high;
Too large and too short the inner neck may c
multimedia player
2.3 obtain Windows Version Information
2.4 your web browser
2.5 screen capture
2.6 your own image browser
2.7 simple multi-threaded Program
2.8 compile and call the DLL
2.9 RM/rmvb player
2.10 use Delphi + ADO to create a student management system
Conclusion 2.11
Chapter 3 SQL serveer 2000
3.1 SQL serveer 2000 Overview
3.2 SQL serveer 2000 Installation and Use
3.3 Use ODBC
Conclusion 3.4
Article 2 practice and Improvement
Chapter 4 Requirement Analysis
4.1 Requirement Analysis
line problem, that is, when the time, distance, or cost required by each edge of the network is known, find out the minimum time, shortest distance, or minimum cost required from the entrance to the exit. The shortest method can be widely used in highway transportation, railway transportation, cable erection, pipeline laying, and personal travel.
The third problem in graph theory is the traffic problem. Ho
, so the following content is necessary. Category: in traditional accounting, the fixed assets of an enterprise can be divided into several categories: houses and buildings, mechanical equipment, transportation tools, office equipment, and others. This classification method is also followed in the system, but in order to facilitate the system to distinguish the subjects to be included in the depreciation of fixed assets, for example, the depreciation
Link: HuangJing
Idea: The most short-circuit variant of the output path .. This question lies in multiple groups of inquiries, so I personally think it is more secure to use Floyd. In addition, there is a toll in every city, so you can change the Loose Condition in Floyd .. What about the output path ?? I use the successor of the output starting point instead of the precursor to the end point .. Because we care about the smallest Lexicographic Order of paths and the successor of the starting poi
Question link: http://acm.hdu.edu.cn/showproblem.php? PID = 1, 1690
Problem failure of the huge population of China, public transportation is very important. Bus is an important transportation method in traditional public transportation system. And it's still playing an important role even now.
The bus system of city X is quite strange. unlike other city's syste
This article describes how to create an undirected graph's Adjacent matrix and path. The extra cost required for each vertex is the first and the end. No extra cost. Calculate the shortest path between two points in the graph and print the minimum path of the Lexicographic Order.
It is required that the Floyd print path be used between multiple groups of points, which is also convenient for NEX [I] [J] to indicate the first path from the I point to the J point with the shortest path. If a node i
is difficult for one server to support all applications due to business needs (such as interacting with external systems). Let's look at the following figure:Client Access server using browser A, server A is deployed in Servers B, C, D ... for business needs with a variety of other applications. And then communicate with each other through WCF technology, visit each other ... However, the benefits of service-oriented are not only here, but it also provides interoperability for different operati
Minimum Transport CostTime limit:2000/1000 MS (java/others) Memory limit:65536/32768 K (java/others)Total submission (s): 10183 Accepted Submission (s): 2791Problem Descriptionthese is N cities in Spring country. Between each pair of cities there is one transportation track or none. Now there are some cargo that should being delivered from the one city to another. The transportation fee consists of the part
learned from my rich dad is: "investment is a plan, not a product or a program ." "Investment is a very personal plan," he added ."
When a rich father gave me an investment lesson, he asked, "Do you know why there are so many different types of cars and trucks in society ?"
I thought for a while and then replied, "I think there are various people in the world who have different needs. A bachelor may not need a passenger car with a length of 9, but families with five children may need it. The fa
price of 20 thousand, which is already the price of my Taobao sales.
The customer is still shaking his head: no one knows about your software development, one computer alone, and no fees, we will sell 20 thousand. You see, we buy raw materials to build factories, attract people to buy pipelines, engage in transportation, attract investment, and advertise price wars, but we are so hot. We are all about cost, very low gross profit, and hard-earned mon
-- Introduction to the collection of ancient moon collection ERPDifferences between ERP system and MRP-ⅱ
ERP is an enterprise management information system developed on the basis of MRP-ⅱ. To further understand the concept and main functions of ERP systems, it is necessary to clarify the differences between ERP and MRP-ⅱ.
1. Differences in resource management scopeMRP-II mainly focuses on the management of internal personnel, financial resources, and other resources in the enterprise. The ER
Vs 2008
The factory method mode allows you to create a series of classes that belong to the same product system. In addition, unlike the general simple factory, the factory method mode creates products by sub-classes. To add new products, you do not need to modify the originalCodeTo add a new factory subclass.
1. Mode UML diagram
2. Application
ProgramDifferent transportation tools need to be used to abstract the behavior of
Let's take a look at this example. We need to create a vehicle, which can be a car, train, or ship. The structure is as follows:
We can use a simple factory to tell the object type we need to create a factory through parameters. If we add sub-classes, such as trucks and cars, we must add parameters and correspondingCodeIf there are many sub-classesProgramBecomes difficult to maintain. It is obviously cumbersome to use a simple factory to implement the above structure.
Of course, we can u
the warehouse of a larger factory). Of course, the shipping of products also requires a fee. Assume that one unit distance of a product is 1. Assume that the created warehouse capacity is large enough to accommodate all products. You will get the following data: XI (x1 = 0), Pi (finished product quantity), And I (1; the cost Ci for building a warehouse at the factory I; please help company l find a warehouse construction solution to minimize the total cost (Construction Cost +
China's largest tanker delivery displacement equivalent to 7 Liaoning ships [map]"cinnamon" Oil wheelThe country's largest tanker "GUI" stop at the Guangzhou International Nansha Factory Wharf. Established by Guangzhou Shipyard International Co., Ltd. for China Merchants Energy Transportation Co., Ltd., the country's largest crude oil wheel ——— carrying capacity of 320,000 tons of "GUI" wheel, built in Guangzhou. Today, the "GUI" wheel will open her m
I. Overview WCF is able to build a cross-platform secure, trustworthy, transactional solution that is a webservice,.net remoting,enterprise service,wse,msmq, with a classic contrast chart as follows:Comparison of WCF and other distributed technologies tableIi. Introduction to "A", "B", "C" in WCFWe first look at an example of life, one day, the company's leadership let you send a contract document, the process of sending documents you can choose the mode of
Problem Descriptionthese is N cities in Spring country. Between each pair of cities there is one transportation track or none. Now there are some cargo that should being delivered from the one city to another. The transportation fee consists of the parts:The cost of the transportation on the path between these cities, andA certain tax which'll be charged whenever
Description in the JIH survey of the map has n cities, by the highway connected to a ring, Jih want to build a toy factory in these cities. Both the city and the highway are numbered 1. N,i Road Connection I-1th City and City I (Highway 1th connects to City N and City 1th), each city demand for toys is WI, the length of each road is di. When Jih built a toy factory in city I, Jih needed to transport the toys to other cities (except of course I city). The cost of transporting toys to City J is l1
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