What conditions should the control mode meet?

a. concept, characteristics and applicable conditions of direct distribution method

the concept of direct distribution method is to distribute the auxiliary production expenses directly among the beneficiaries outside the auxiliary production workshop without interactive distribution. Then, according to the consumption of units outside the auxiliary production workshop, the auxiliary production cost allocation table can be compiled.

it is mainly characterized by the fact that the direct distribution method is the simplest and the biggest error among the various distribution methods of auxiliary production expenses, so it is only suitable for enterprises that do not offer many goods or services to each other in auxiliary production.

this distribution method is mainly suitable for small enterprises that do not carry out cost accounting between auxiliary production workshops and enterprises that have difficulties in accounting between auxiliary production workshops.

(1) What conditions should the control mode meet? Extended reading:

The reachable torque set of direct distribution method refers to the * * * of all torques generated by the control quantity under the condition that the control quantity meets the constraints. For the control quantity in M-dimensional space, the restricted control set can be determined by the control constraints. Given the control efficiency matrix, the achievable torque in n-dimensional space can be determined by linear mapping.

on the basis of three-dimensional torque distribution, the zero-space coordinate k is mathematically planned, so that the two objectives of minimum control amount and minimum resistance can be optimized. The simulation results show that the research method can realize the control distribution with minimum control amount and minimum resistance while maintaining the original advantages of direct distribution method.

B. What requirements should the fire control equipment meet for the control of the fire shutter?

The linkage control design of the fire shutter set on the evacuation passage should meet the following requirements:

1 The linkage controller is special, and the alarm signal of any two independent smoke fire detectors or any smoke fire detector dedicated to the linkage of the fire shutter in the fire zone should be linked to control the fire shutter to descend to a distance of 1．8m from the floor surface; The alarm signal of any temperature-sensitive fire detector specially used for linkage fire shutter shall be linked to control the fire shutter to descend to the floor surface; At least two temperature-sensitive fire detectors specially used for linkage fire shutter shall be set at .5m ~ 5m from the depth of the shutter on either side.

2 in manual control mode, the lifting of the fire shutter should be controlled by manual control buttons set on both sides of the fire shutter.

the linkage control design of the fire shutter set on the non-evacuation passage shall meet the following requirements:

1. In linkage control mode, the alarm signal of any two independent fire detectors in the fire zone where the fire shutter is located shall be used as the linkage trigger signal for the fire shutter to descend, and the fire shutter shall be controlled to descend directly to the floor.

2 in manual control mode, the manual control buttons on both sides of the fire shutter should control the lifting of the fire shutter, and the fire shutter should be able to manually control the landing on the fire linkage controller in the fire control room.

the action signals of the fire shutter descending to a distance of 1．8m from the floor surface and descending to the floor surface, and the alarm signals of the smoke-sensing and temperature-sensing fire detectors directly connected to the fire shutter controller should be fed back to the fire linkage controller.

C. What are the characteristics of effective control (that is, the control requirements for the production and operation activities of enterprises)

1. Timely control

2. Moderate control: prevent excessive control or insufficient control, and handle the relationship between comprehensive control and key control. Make the control that costs a certain amount of money get enough control benefits

III. Objective control

IV. Elastic control

D. How to lay out the root control network correctly, and what aspects should be paid attention to, (requirements: consideration of survey area, consideration of accuracy, problems of starting point coordinate belt, methods

1. Characteristics of cadastral root control network (1) Layout specifications of root control network. (2) The root control points of cadastral maps have served various cadastral surveys for a long time, and permanent or semi-permanent signs should be buried in the control points, with a description of "points". (3) The density of root control points of cadastral map should change according to the location and density of boundary points. Usually, almost all roads should be laid with cadastral root wires; 1-4 cadastral map root control points should be arranged per square kilometer. 2. Layout mode of cadastral root control network (1) In urban built-up areas, traverse is usually used to layout cadastral root control network. (2) In areas with few buildings and good visibility, cadastral root triangulation can be set up. 3. Some Special Provisions on the Layout of Cadastral Map Root Traverse (1) When the length of traverse is less than 1/3 of the allowable length, it is only required that the absolute closure difference of the total length of traverse is less than 13cm, without checking the relative closure difference of traverse. (2) When the side length of a single conductor is shorter than 1m, it is allowed not to check the angle closure error of the conductor, but the side length and orientation of the conductor shall not be used as the initial data to lay the lower level conductor or fulcrum. (3) When measuring the side length of the traverse with electromagnetic wave range finder or electronic total station, the total length of the traverse is allowed to be relaxed, but the absolute closure difference of the total length of the traverse should not be greater than ±22cm, while the relative closure difference: the root traverse of the first-class cadastral map should not be greater than 1/5, and the root traverse of the second-class cadastral map should not be greater than 1/3.

e. What is the meaning of (conditional control) in science?

Experiment demonstration under specific conditions, etc.

What requirements should DEH regulating system meet?

DEH regulating system can be divided into electronic and hydraulic parts with electro-hydraulic servo valve as the boundary. The hydraulic part includes conventional hydraulic regulating system and security system.

(1) From the function of the starting process, the system mainly has the following functions: the system can automatically and quickly pass through the critical speed zone, and can automatically synchronize.

(2) From the start-up mode, the system mainly has the following functions: it can adapt to the control of cold, warm and hot start-up. When the switching speed is reached, it can be automatically switched from the main valve control mode to the regulating valve control mode. When the intermediate pressure cylinder is used for rushing, it can be automatically switched from the regulating valve control of the intermediate pressure cylinder to the main valve control after the switching speed of the main valve control and regulating valve control is reached.

(3) From the operation state, the system mainly has the following functions: a. Frequency modulation operation mode and basic load operation mode can be selected according to the requirements of the power grid. B. The operator can adjust or set the upper and lower limits and lifting rate of the load. C. Constant pressure operation mode and sliding pressure operation mode can be selected. When the pressure is constant, the system has valve control function to ensure that the steam turbine can obtain maximum power.

D. furnace following machine, machine following furnace or coordinated control mode can be selected as required. When the unit participates in coordinated control, the power plant dispatcher or operator can give instructions to automatically control the output of the turbine generator.

g. what requirements should be met in establishing an effective control system

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H. What is the strength of the beam under general conditions?

Under general conditions, the strength of the beam is controlled by the shear strength. Shear strength is the ultimate strength of the material when it breaks internally, which reflects the ability of the material to resist shear sliding. It is numerically equal to the tangential stress on the shear surface, that is, the ratio of the shear force formed on the shear surface to the failure area, which can be divided into two forms: single shear and double shear.

in the case of double shear, the failure area is twice the cross-sectional area of the specimen. The shear strength of soil can be divided into: it is related to the normal stress between particles, and its essence is friction; Independent of normal stress. When the shear stress generated by external load in the foundation reaches the shear strength of soil, the soil will be destroyed, and in severe cases, landslides will occur, and the foundation of buildings will lose stability.

(8) What conditions should the control mode meet? Extended reading:

Selection of indicators

Firstly, the analysis method is determined according to the nature of the engineering problem, and then the total stress or effective stress intensity index is decided, and then the testing method is selected. Generally speaking, the effective stress intensity index should be used to analyze the long-term stability of foundation, while for the short-term stability of saturated soft clay, the strength index of unconsolidated undrained test or rapid shear test should be adopted.

The total stress analysis method is often used in general engineering problems, and the selection of its indicators and test methods are roughly as follows: If the construction speed of buildings is fast and the water permeability and drainage conditions of foundation soil are poor, the results of unconsolidated undrained test or quick shear test can be used.

I. What are the requirements for elevation control survey? What are the common methods for establishing elevation control network?

Generally speaking, elevation control network needs to meet the following requirements:

1. The embedding method of elevation control points should be suitable for the elevation control network to be surveyed, and should meet the requirements of corresponding general and professional survey specifications;

2. The working conditions of the instruments and their accessories used in the survey, such as the nominal accuracy of the level, the I angle during the actual survey, the type of ruler used, and the calibration of the difference between the front and rear sight rulers, should meet the accuracy requirements of the elevation control network that needs to be surveyed;

3. The front and rear visual distance and sight distance difference, reading sequence, recording method, station tolerance, round-trip measurement difference, discrepancy between measurement sections, adjustment method, precision indexes after leveling difference and measurement data archiving should all meet the requirements of relevant specifications;

4. In a certain period of time, use the same method to retest with instruments with the same accuracy, and the difference should not be greater than 3 times of the elevation error.

Generally speaking, the common steps for establishing the elevation control network are as follows:

1. According to the construction needs, firstly, two or more elevation control points are buried on both sides outside the influence area of the construction area as the control starting point of this project, and then some control points which are convenient for construction lofting and direct use are buried near the construction area;

2. According to the equipment conditions and accuracy requirements, you can choose to use level, total station or GPS to carry out field survey and indoor calculation in strict accordance with the requirements of relevant specifications

J. What conditions do human resource managers need

The following conditions are required:

1. Excellent ideological quality and correct values. As a personnel manager, first of all, his values should be consistent with those of the enterprise. Only those who put the interests of the enterprise and society above their personal interests are qualified to be managers and leaders of the enterprise. Only through personal efforts can a personnel manager create value for the enterprise and gain benefits for employees, and his personal value can be reflected.

2. communication skills. Personnel managers need to deal with all aspects and departments of the enterprise. Therefore, it will face a variety of requirements. A personnel manager should be able to see the essence through phenomena, be good at organizing smooth communication channels, create a harmonious working atmosphere, and clearly convey his consciousness.

3. Professional skills. People often think that only technical workers or financial managers need professional skills, while human resource managers don't need professional skills. This is mainly to confuse human resource management with the previous personnel management, which was mainly engaged in the management of archives and wages and benefits and exercised simple business functions.

(1) What conditions should the control method meet? Further reading:

Human resource managers refer to professional managers engaged in human resource planning, employee recruitment and selection, performance appraisal, salary and welfare management, motivation, training and development, and labor relations coordination. Its employees are required to have strong interpersonal communication skills, be able to coordinate various relationships within the enterprise and be good at solving problems.

human resources personnel belong to the personnel department and human resources personnel.

Basic knowledge:

Labor law, human resource management, labor economics, statistical knowledge, computer knowledge and writing knowledge.

professional skills:

human resource planning, recruitment and allocation, training and development, performance management, salary and welfare management, labor relations management, common legal knowledge and professional ethics.