How do you distinguish between entrustment and agency, and the differences and connections between them
Agency means that one party grants another party the power of agency, and the other party performs legal acts with a third party based on the power of agency. , a civil legal system in which one party is responsible for the consequences of his actions. Entrustment is a legal system in which one party entrusts certain affairs to another party for implementation.
The difference between entrustment and agency is: first, entrustment regulates the relationship between the principal and the trustee; while agency regulates the relationship between the principal, the agent and the third party. Second, in an agency relationship, the agent's agent is the act of making and accepting expressions of intention; while in an entrustment, the acts performed by the trustee can be legal acts or factual acts. Third, agency includes both internal and external relationships. Internally, it is the relationship between the agent and the principal, while externally, it is the relationship between the agent and a third party; while entrustment is only between the principal and the trustee. relationship between. The difference and connection between BIOS and CMOS
In the computer field, CMOS often refers to the chip that saves the computer's basic startup information (such as date, time, startup settings, etc.). Sometimes people confuse CMOS with BIOS. In fact, CMOS is a readable and writable RAM chip on the motherboard, which is used to save the BIOS hardware configuration and user settings for certain parameters. CMOS can be powered by the motherboard's battery, so even if the system loses power, the information will not be lost. CMOS ROM itself is just a piece of memory and only has the function of saving data. The setting of various parameters in the BIOS requires special procedures. The BIOS setup program is generally integrated into the chip by the manufacturer. You can enter the BIOS setup program by pressing specific buttons when turning on the computer, making it easy to set up the system. Therefore BIOS settings are sometimes called CMOS settings. What are the differences and connections between CAPM and APT?
Capital asset pricing model (CAPM) and arbitrage pricing theory (APT) are two well-known models about capital market equilibrium. Although the two models have major differences in interpretation angles, basic settings, methods, and scope of application, they achieve the same goal by different approaches, and they reach the same conclusion: there is a positive correlation between expected return and risk.
To put it simply, the essential difference between APT and CAPM is that CAPM is an equilibrium asset pricing model, while APT is not an equilibrium pricing model. In addition, (1) APT model does not require the assumption of effect function; (2) APT does not require the assumption of asset return distribution; (3) APT allows asset returns in equilibrium to be affected by multiple factors; (4) APT does not need to be defined Efficient market portfolio; (5) APT can be a multi-period model (Ross, 1976).
Wei (1988) proposed a view that can unify CAPM and APT. If non-systematic risk obeys Ross's APT hypothesis, then by adding market portfolio as a new factor, an accurate pricing model can be obtained. And the more factors that are omitted, the more important the market mix becomes. He also proved that under limited economic conditions, the pricing error of the APT model in the residual-related factor model is an increasing function of the absolute value of the market portfolio residual.
Chen (1983) used data from 1963 to 1978 to compare the performance effects of APT and CAPM. Test whether APT can explain the "anomalies" that CAPM cannot explain. Systemic factors are replaced by the S&P 500 Index, a market-capitalization-weighted portfolio of securities, or an equal-weighted portfolio. In all three cases, APT outperforms CAPM. Therefore, it can be considered that APT is a more ideal model than CAPM in explaining the cross-section of asset returns.
Roll and Ross (1984) used a diagram to well illustrate the connection between APT and CAPM, giving a more intuitive dialectical relationship between the two. They compared a two-factor (output and inflation) APT model with CAMP using the S&P 500 as the market portfolio. What is fermentation, what is brewing, the differences and connections between them
Fermentation: Generally speaking, fermentation mostly refers to a certain decomposition process of organic matter by organisms.
Fermentation is a biochemical reaction that humans have been exposed to earlier, and is now widely used in the food industry, biological and chemical industries. It is also the basic process of bioengineering, that is, fermentation engineering.
Brewing: Using fermentation to create the basic topology of a local area network, the differences and connections between them
Hello friends, you must understand the reference model of the network when learning the network (in order to understand the complex The problem is divided into several relatively simple problems and developed - reference model)
There are two reference models OSI (Open System Interconnection Reference Model) divides the entire network into 7 layers, which appears in TCP/ Before the IP protocol cluster (for understanding)
The second type: TCP/IP 5-layer reference model, which appears after the TCP/IP protocol cluster, so the upper three layers have strictly corresponding protocols (for understanding)< /p>
The following are the key points:
TCP/IP five-layer reference model structure:
The first layer: physical layer, the second layer: data link layer, the third layer Layer 3: Network layer, Layer 4: Transport layer, Layer 5: Application layer.
Friends, if you want to understand the LAN topology, you have to remember one sentence:
The LAN works at the data link layer---the typical device of the data link layer is the switch, then The entire LAN is formed by connecting several computers to a switch through wired or wireless methods (several computers are interconnected, for example: LAN game battles can be played - CrossFire). We can put this topology It's called a peer-to-peer network.
If there is a requirement now that several computers in the LAN need to access the same file data, we can install a file sharing service or FTP service on a computer in the LAN. The current network structure has become a CS (Client--Server) structure.
Hope this helps.
The difference and connection between RCM and TPM
The difference and connection between RCM and TPM:
1: Definition of RCM and TPM:
p>RCM refers to reliability-centered maintenance. It is a maintenance system developed in Europe and the United States after further research on equipment wear curves and equipment fault diagnosis technology.
TPM is usually translated as total production maintenance. It was proposed 40 years ago by an American manufacturing person. Nippondenso, a Japanese automotive electronic component manufacturer, was the first to introduce the repair field in the late 1960’s. Theoretically, TPM is a maintenance procedure that originated from "total quality management."
2. Differences and connections between RCM and TPM
Contact: For enterprises, equipment maintenance has two goals: one is to determine the maintenance needs of physical components in the current working environment ; The second is to complete these maintenance operations as economically and efficiently as possible. RCM is usually used to solve the first goal, and TPM is used to solve the second goal.
RCM mainly determines the actual maintenance needs of equipment through standardized analysis and formulates applicable and effective maintenance work types, that is, to improve the effectiveness of maintenance strategies. The prerequisite is that the industrial sector must have basic equipment operating conditions, and the skill level, development and training requirements of operators must be high.
TPM originated from the manufacturing industry and emphasizes the importance of people. The TPM process attempts to reshape the enterprise's organizational structure to tap its own potential. The purpose of TPM is to perform better maintenance. In fact, the maintenance operations and planning arrangements after TPM planning have not changed. What has changed is the personnel who perform the operations.
Difference: One major difference between RCM and TPM is that RCM is used to improve maintenance strategies while TPM believes that maintenance alone cannot improve system reliability. Factors arising from different process requirements, such as: lack of careful operators and lack of practical operating experience, backward basic equipment operating conditions and changes in equipment load, etc., all have an impact on equipment reliability. Unless all workers actively and consciously avoid mistakes and reduce losses, manufacturing and mining cannot cost-effectively implement early fault diagnosis and reduce failures.
Since there is a certain complementarity between RCM and TPM, how to effectively combine the two will definitely become the research direction of future maintenance technology. The differences and connections between BOD, COD, and SS
Even if there is no reward, I will write something for you. I hope it will be helpful to you!
BOD (abbreviation for Biochemical Oxygen Demand): Biochemical Oxygen Demand. A comprehensive indicator indicating the content of aerobic pollutants such as organic matter in water. The higher the value, the more organic pollutants are in the water and the more serious the pollution. Pay attention to organic pollutants!
COD (Chemical Oxygen Demand) is the amount of oxidant consumed when a certain strong oxidant is used to treat water samples under certain conditions. It is an indicator of the amount of reducing substances (note that they are reducing substances) in the water. Reducing substances in water include various organic substances, nitrites, sulfides, ferrous salts, etc. But the main thing is organic matter. Therefore, chemical oxygen demand (COD) is often used as an indicator to measure the content of organic matter in water. The greater the chemical oxygen demand, the more serious the water body is polluted by organic matter.
The connection between the two: both can reflect the more serious the water body is polluted by organic matter.
SS: Suspended solids. It has little connection with the above two!
They do not have a contained relationship, usually COD > BOD. The differences and connections between IPMI, firmware, and BMC
IPMI (Intelligent Platform Management Interface), IPMI means intelligent platform management interface. IPMI is an open standard hardware management interface specification. It provides an architecture that defines how various individual devices can communicate with the CPU in a standard way. Through a standard interface such as IPMI, system administrators can easily remotely monitor the "health status" of servers and client computers, and obtain the information required for various MIS management, even when the operating system ( When the OS) fails, IPMI can still operate independently, helping managers quickly understand the cause of hardware failure and further diagnose hardware problems so that the system can resume operation in the shortest time.
Firmware is a synonym for software, but this software is completely different from software in the ordinary sense. It is a source code solidified inside an integrated circuit, and the functions of the integrated circuit are composed of these determined by the procedure. ROM is just a carrier of Firmware, and what we usually call BIOS is the ROM chip that solidifies the Firmware of the system motherboard.
BMC (DMC) material is the abbreviation of Bulk (Dough) molding pounds, that is, bulk molding compound. It is often called unsaturated polyester bulk molding compound in China. Its main raw materials are GF (chopped glass fiber), UP (unsaturated resin), MD (filler) and various additives that are fully mixed into a dough-shaped prepreg. DMC materials were first used in the former West Germany and the United Kingdom in the 1960s, and then developed greatly in the United States and Japan in the 1970s and 1980s respectively. Because BMC bulk molding compound has excellent electrical properties, mechanical properties, heat resistance, chemical corrosion resistance, and is adaptable to various molding processes, it can meet the performance requirements of various products. Therefore, it is becoming more and more popular among users. favorite.
BMC Software Company [NYSE: BMC] is the world's leading provider of enterprise management solutions. It is committed to helping enterprises effectively manage IT from a business perspective and has released a business service management (BSM) strategy. BMC software solutions cover enterprise systems, application software, databases and service management fields. BMC Software was founded in 1980 and has branches around the world. In fiscal 2004, its revenue exceeded US$1.4 billion.
For more information, please visit the company's website: bmc./
[Company Profile]
·Established in September 1980
·With 1988 Listed in August 2018
·The company is headquartered in Houston, Texas, USA
·The international headquarters is set up in Amsterdam, the Netherlands
·Sales centers by geography Locations are divided into Europe/Middle East/Africa, Asia Pacific and Americas
·With offices around the world, including: Argentina, Australia, Austria, Belgium, Brazil, Canada, China, Denmark, Finland , France, Germany, Hong Kong, Hungary, Ireland, Israel, Italy, Japan, South Korea, Mexico, Netherlands, Norway, Poland, Portugal, Singapore, South Africa, Spain, Sweden, Switzerland, Turkey, *** United Emirates and United Kingdom
·Market coverage in more than 40 countries
·Research and development departments are located in Houston and Austin, Texas; San Jose, California; Conyers, MA, GA Waltham, VA, Herndon, Aix-en-Provence, France, Singapore, Tel Aviv, Israel and Pune, India
· More than 6,200 employees worldwide
· Annual average of 25 ℅ of revenue is invested in R&D and technical support
· Ranked among the S&P 500
· Products are sold through direct and indirect channels, including distributors, system integrators and original equipment manufacturers Sales
[Committed to innovation]
·Possess 52 software technology patents
·Pioneer of the concept of "Application Service Guarantee"
· Through PATROL application software, we became the first provider of application management solutions in the industry
·The first ISV (independent software vendor) to provide tool kits for IBM's IMS and DB2 database
·The first software provider to provide comprehensive management solutions for B2B communication and extended enterprises
·Inventor of data flow optimization - ensuring data flow through applications and data management Delivery from one location to another (such as from server to client) is fast, stable and continuous
·Developed SiteAngel?, with unique service capabilities, through testing the performance and availability of each path , simulate and feedback customers' end-to-end real experience on the site
·CONTROL-SA solution has been recognized as a leader in enterprise user management solutions by GartnerGroup's Magic Quadrant research report. Its process includes : Ensure that companies have access to security strategies that are critical in existing e-commerce environments
·GartnerGroup's 2002 Magic Quadrant research report believes that BMC software is the leader in Storage Area Neork (SAN) management software. leader.
This report evaluates vendors based on their technology version and their ability to implement that technology version
[Industry Partner]
· Establishing extensive relationships with BMC software developers Contacts, including more than 300 customers and commercial software developers, make it easy to integrate third-party development products with BMC's software products
· Distributed system technology, through cooperation with numerous system integrators (such as database , application software and hardware suppliers) products for resale
·PATROL’s technology partners include Compaq, Intel, Microsoft and Sybase
·With EMC, IBM, Microsoft, Oracle, PeopleSoft, SAP, Siebel Systems and Sun have all established partnerships
·Is a founding member of WBEM (Web Based Enterprise Management), an organization committed to establishing an industry standard that allows administrators to Manage disparate systems, networks and applications from any web browser; also members are Compaq, Intel, Cisco and Microsoft
Selected as Siebel Systems' preferred systems management provider (April 2002) Month)
[Customer Profile]
·BMC’s main service targets are 2,000 companies around the world. In the constantly changing surrounding environment, they must face high management complexity heterogeneous, distributed IT environments. To meet their needs and gain a competitive advantage, these customers leverage BMC's solutions to address their challenges while also improving their return on investment. In addition, with the help of BMC solutions, these customers can focus on providing high-quality services to their end users (including domestic and foreign users)
·Typical customers are those who face highly complex management, Distributed IT infrastructure tasks for large enterprises, social institutions and suppliers
· Approximately 9,600 international customers worldwide
· More than 100 of the Global Fortune 500 80℅ of enterprises use BMC software