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Investigating the Effects of Slack Bus Selection in Load Flow Studies: A Comparative Analysis of Robust and Weak Grids
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作者 Nutifafa K. Fiasorgbor 《Journal of Power and Energy Engineering》 2023年第9期1-14,共14页
Load flow studies play a critical role in the analysis of power systems. They enable the computation of voltage, current, and power flows in a power system. They provide valuable insights into the steady-state perform... Load flow studies play a critical role in the analysis of power systems. They enable the computation of voltage, current, and power flows in a power system. They provide valuable insights into the steady-state performance of the power system under different operating conditions. Choosing a slack bus is a vital step in conducting load flow simulations. A slack bus is a PV bus that includes a generator and is used to balance real and reactive power during load flow studies. Many studies have been conducted on the selection of slack buses in load flow analysis. However, varied conclusions regarding the impact on system losses and power flows were obtained during these studies. Therefore, using the IEEE-14 bus test system, this study investigated the effects of slack bus selection in strong and weak grids by alternating slack buses among PV buses and observing the effects on bus voltage magnitude, bus voltage phase angle, total power flows, and active and reactive power losses. The study noted that the effect of slack bus selection on these system quantities is contingent upon the voltage stability of the grid. Whereas in a robust grid, system losses and power flows remained constant irrespective of the choice of slack bus, a weak grid experienced some variations in these system quantities under similar circumstances. The simulation results led to the conclusion that, to a large extent, the voltage stability of the grid plays a significant role in determining the degree to which slack bus selection affects system losses and other quantities in load flow studies. 展开更多
关键词 Load Flow slack Bus System Losses Voltage Stability
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Urban Metabolism Based on Emergy and Slack Based Model: A Case Study of Beijing, China 被引量:2
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作者 SONG Tao CAI Jianming +4 位作者 XU Hui DENG Yu NIU Fangqu YANG Zhenshan DU Shanshan 《Chinese Geographical Science》 SCIE CSCD 2015年第1期113-123,共11页
The key to studying urban sustainable development depends on quantifying stores, efficiencies of urban metabolisms and capturing urban metabolisms′ mechanisms. This paper builds up the metabolic emergy account and qu... The key to studying urban sustainable development depends on quantifying stores, efficiencies of urban metabolisms and capturing urban metabolisms′ mechanisms. This paper builds up the metabolic emergy account and quantifies some important concepts of emergy stores. Emphasis is placed on the urban metabolic model based on the slack based model(SBM) method to measure urban metabolic efficiencies. Urban metabolic mechanisms are discussed by using the regression method. By integrating these models, this paper analyzes the urban metabolic development in Beijing from 2001 to 2010. We conclude that the metabolic emergy stores of Beijing increased significantly from 2001 to 2010, with the emergy imported accounting for most of the increase. The metabolic efficiencies in Beijing have improved since the 2008 Olympic Games. The population, economic growth, industrial structures, and environmental governance positively affect the overall urban metabolism, while the land expansion, urbanization and environmentally technical levels hinder the improving of urban metabolic efficiencies. The SBM metabolic method and the regression model based on the emergy analysis provide insights into the urban metabolic efficiencies and the mechanism. They can promote to integrate such concepts into their sustainability analyses and policy decisions. 展开更多
关键词 emergy theory urban metabolism slack based model(SBM) Beijing Municipality regression analysis
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Nonlinear Dynamic Responses of Tension Leg Platform with Slack-Taut Tether 被引量:3
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作者 曾晓辉 李宣文 +1 位作者 刘洋 吴应湘 《China Ocean Engineering》 SCIE EI 2009年第1期37-48,共12页
The slack-taut state of tether is a particular adverse circumstance, which may influence the normal operation state of tension leg platform (TLP). The dynamic responses of TLP with slack-taut tether are studied with... The slack-taut state of tether is a particular adverse circumstance, which may influence the normal operation state of tension leg platform (TLP). The dynamic responses of TLP with slack-taut tether are studied with consideration of several nonlinear factors introduced by large amplitude motions. The time histories of stresses of tethers of a typical TLP in slack- taut state are given. In addition, the sensitivities of slack to stiffness and mass are investigated by varying the stiffness of tether and mass of TLP. It is found that slack is sensitive to the mass of TLP. The critical curved surfaces ( over which indicates the slack) for the increase of mass are obtained. 展开更多
关键词 tension leg platform slack-taut large amplitude motions sensitivity analysis
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Proposing a New Model of Hangers in Pedestrian Suspension Bridges to Solve Hangers Slackness Problem 被引量:3
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作者 Majid Barghian Hadi Moghadasi Faridani 《Engineering(科研)》 2011年第4期322-330,共9页
The hangers of suspension bridges can be placed in two forms: vertical or inclined form. Inclined hangers are more liable to fatigue. Vertical hangers are subjected to greater fluctuations of stress resulting from bri... The hangers of suspension bridges can be placed in two forms: vertical or inclined form. Inclined hangers are more liable to fatigue. Vertical hangers are subjected to greater fluctuations of stress resulting from bridge wind loads. To improve aerodynamic stability, inclined hangers can be used instead of vertical ones. Some inclined hangers show considerable signs of distress and some of them show slackness due to their location against loads. In this paper a pedestrian suspension bridge with vertical hangers has been studied as a case study. Then, the same bridge has been studied with inclined hangers. To reduce internal forces, fatigue and slackness in hangers, horizontal cables have been added to inclined hangers. This modification is proposed by the present authors. The added horizontal cables transfer the tensile load from overstressed hangers to adjacent slacked hangers. Three different hanger patterns have been analyzed under nonlinear static analysis for symmetrical and nonsymmetrical live load plus dead load. Results showed that the modified hanger system had been improved considerably in comparison with vertical or inclined hangers and wherever that there is no improvement some solutions have been proposed. 展开更多
关键词 PEDESTRIAN SUSPENSION BRIDGE Vertical Hangers Inclined Hangers Modified Hangers (Suspenders) Nonlinear STATIC slackNESS
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TIMING SLACK OPTIMIZATION APPROACH USING FPGA HYBRID ROUTING STRATEGY OF RIP-UP-RETRY AND PATHFINDER 被引量:1
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作者 Yu Wei Yang Haigang +1 位作者 Liu Yang Huang Juan 《Journal of Electronics(China)》 2014年第3期246-255,共10页
To improve the path slack of Field Programmable Gate Array(FPGA), this paper proposes a timing slack optimization approach which utilizes the hybrid routing strategy of rip-up-retry and pathfinder. Firstly, effect of ... To improve the path slack of Field Programmable Gate Array(FPGA), this paper proposes a timing slack optimization approach which utilizes the hybrid routing strategy of rip-up-retry and pathfinder. Firstly, effect of process variations on path slack is analyzed, and by constructing a collocation table of delay model that takes into account the multi-corner process, the complex statistical static timing analysis is successfully translated into a simple classical static timing analysis. Then, based on the hybrid routing strategy of rip-up-retry and pathfinder, by adjusting the critical path which detours a long distance, the critical path delay is reduced and the path slack is optimized. Experimental results show that, using the hybrid routing strategy, the number of paths with negative slack can be optimized(reduced) by 85.8% on average compared with the Versatile Place and Route(VPR) timing-driven routing algorithm, while the run-time is only increased by 15.02% on average. 展开更多
关键词 Field Prograinmable Gate Array (FPGA) Timing analysis slack Routing
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数据库基于Slack Bot的实时监控和预警平台
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作者 罗青 《电脑知识与技术》 2017年第1期3-5,共3页
为了能够有效的监控和预警生产环境中数据库的运行状态,及时的解决因为数据库无法响应或者数据库硬件损坏导致的损失,基于数据库的实时预警系统尤为重要。传统的监控和预警平台通常采用的是自动化脚本+邮件和短信提醒的方式,虽然解决... 为了能够有效的监控和预警生产环境中数据库的运行状态,及时的解决因为数据库无法响应或者数据库硬件损坏导致的损失,基于数据库的实时预警系统尤为重要。传统的监控和预警平台通常采用的是自动化脚本+邮件和短信提醒的方式,虽然解决了预警的及时性问题,但是并不能支持可配置性和实时查询。因此有必要搭建一套实时的数据库监控和预警系统来保证线上数据库的正常运行。该文采用了最近逐渐开始流行的Slack作为消息推送平台,通过研究Slack实时消息API,并且与Jira,LDAP等企业管理工具的集成,实现了一套部署在生产环境数据库之上的基于Slack Bot的实时监控和预警系统。最后通过比较评估了实际效果。 展开更多
关键词 预警 slack 实时监控 BOT 数据库
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Thermal transport property of Ge_(34) and d-Ge investigated by molecular dynamics and the Slack's equation
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作者 王汉夫 禇卫国 +1 位作者 郭延军 金灏 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第7期445-455,共11页
In this study, we evaluate the values of lattice thermal conductivity κL of type Ⅱ Ge clathrate (Ge34) and diamond phase Ge crystal (d-Ce) with the equilibrium molecular dynamics (EMD) method and the Slack's ... In this study, we evaluate the values of lattice thermal conductivity κL of type Ⅱ Ge clathrate (Ge34) and diamond phase Ge crystal (d-Ce) with the equilibrium molecular dynamics (EMD) method and the Slack's equation. The key parameters of the Slack's equation are derived from the thermodynamic properties obtained from the lattice dynamics (LD) calculations. The empirical Tersoff's potential is used in both EMD and LD simulations. The thermal conductivities of d-Ge calculated by both methods are in accordance with the experimental values. The predictions of the Slack's equation are consistent with the EMD results above 250 K for both Ge34 and d-Ge. In a temperature range of 200-1000 K, the κL value of d-Ge is about several times larger than that of Ge34. 展开更多
关键词 CLATHRATE thermal conductivity molecular dynamics simulation the slack's equation
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RHEOLOGICAL FRACTURE ANALYSIS OF CABLE BY CONSIDERING THE SECOND ORDER EFFECTS OF RANDOM SLACK
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作者 Yuan Longwei(Research Institute of Rheological Mechanics,Xiangtan University,Hunan 411105) 《Acta Mechanica Solida Sinica》 SCIE EI 1995年第4期314-326,共13页
In this paper we consider the cable as a bundle consisting of x sub-bundles, with m parallel tension members per sub-bundle, and the tension members themselves are polymeric yarns impregnated with a resin matrix. The ... In this paper we consider the cable as a bundle consisting of x sub-bundles, with m parallel tension members per sub-bundle, and the tension members themselves are polymeric yarns impregnated with a resin matrix. The nonfailad members at any instant must share an applied system load according to some rule, since there is a clearly expressed dependence of the fracture on the duration on the duration and character of the loading. So then, the fracture of cable is a process of nonlinear dynamic evolution, which accommodates to the non-equilibrium thermodynamics of irreversible processes by itself. Let us assume that the polymeric yarns art as viscoelastic solid, under certain probabilistic assumptions, according to the principles of rheology of bodies with defects, the relationship between the single member loading and failure and the bundle loading are investigated. It can be shown that the bundle failure time is asymptotically normally distributed as the number of members grows large. After a study of the second order effects of random slack, it is known that the asymptotic mean and variance are functions of the parameters of loading and single member theological behavior. Hence the loss in the asymptotic bundle strength mean brought about by random member and sub-bundle slack, L(s), and the loss in the asymptotic bundle strength variance caused by random member slack, Delta(s), are determined. And finally, if is known that the asymptotic time of failure can make up a considerable part of the fracture of cable, and the fracture of cable is a time-dependent process of rheological fracture. 展开更多
关键词 CABLE BUNDLE random slack rheological fracture rheology of bodies with defects
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Energy Efficient On-Chip Communications Implementation Based on Power Slacks
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作者 Xiao-Yu Xia Wen-Ming Pan Jia-Chong Kan 《Journal of Electronic Science and Technology》 CAS 2014年第4期354-360,共7页
The quest for energy efficiency has growing importance in high performance many-core systems. However, in current practices, the power slacks, which are the differences observed between the input power budget and the ... The quest for energy efficiency has growing importance in high performance many-core systems. However, in current practices, the power slacks, which are the differences observed between the input power budget and the actual power consumed in the many-core systems, are typically ignored, thus leading to poor energy efficiency. In this paper, we propose a scheme to effectively power the on-chip communications by exploiting the available power slack that is totally wasted in current many-core systems. As so, the demand for extra energy from external power sources (e.g., batteries) is minimized, which helps improve the overall energy efficiency. In essence, the power slack is stored at each node and the proposed routing algorithm uses a dynamic programming network to find the globally optimal path, along which the total energy stored on the nodes is the maximum. Experimental results have confirmed that the proposed scheme, with low hardware overhead, can reduce latency and extra energy consumption by 44% and 48%, respectively, compared with the two competing routing methods. 展开更多
关键词 Adaptive routing dynamicprogramming network NETWORKS-ON-CHIP power slack.
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The Treatment of Non-zero Slacks in Data Envelopment Analysis
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作者 Hu Hanhui ( School of Management , Southeast University, Nanjing 210018, P. R. China ) Joe Zhu( Department of Mechanical and lndustrial Engineering, University of Massacbusetts, Amherst, MA 01003, USA ) 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 1997年第1期46-50,共5页
The paper studies the non-zero slacks in data envelopment analysis. A procedure is developed for the treatment of non-zero slacks. DEA projections can be done just in one step.
关键词 Data envelopment analysis (DEA) slack EFFICIENT Multiplier.
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Mathematic simulation and parameters determination of slacking process of weak rocks
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作者 刘晓明 赵明华 苏永华 《Journal of Central South University of Technology》 EI 2007年第6期877-882,共6页
Slacking experiments were performed on the red beds weak rock from vicinity of Changsha. Grain size distribution of the slacking rock was tested periodically during the experiments, which can be used to describe the p... Slacking experiments were performed on the red beds weak rock from vicinity of Changsha. Grain size distribution of the slacking rock was tested periodically during the experiments, which can be used to describe the physical transition of red beds weak rock during slacking process. According to the similar characters of many attributions such as environmental moisture, mineralogical composition, grain size and other factors between big rocks before slacking and its slacked product, the self-similar property of big rock and the small one can be induced. Fractal concept was introduced to construct the slacking model of red beds weak rock. Combining the supposed relationship of time for slacking and grain size of weak rock, the mathematic simulation of slacking process of red beds weak rock was conducted. To simplify the parameters back calculation, the fractal model proposed by Tyler and Wheatcraft was introduced to describe the characters of grain size distribution variation. The results show that the fractal dimension calculated from simulation data meet experiments data closely, which proves that the mathematic simulation method is reasonable and the parameters determination method is effective. 展开更多
关键词 slacking process FRACTAL SIMULATION weak rock
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Research and Test of Three-Pulley Noncircular Synchronous Pulley Transmission Mechanism with Minimum Slack
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作者 Jianneng Chen Xincheng Sun +2 位作者 Chuanyu Wu Dadu Xiao Jun Ye 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2021年第2期236-248,共13页
The noncircular synchronous belt drive mechanism has demonstrated certain achievements and has been used in special fields.Research regarding noncircular synchronous belt drive mechanisms has focused on optimization d... The noncircular synchronous belt drive mechanism has demonstrated certain achievements and has been used in special fields.Research regarding noncircular synchronous belt drive mechanisms has focused on optimization design and kinematic analysis in China,whereas two pulley noncircular synchronous belt transmissions have been developed overseas.However,owing to the noncircular characteristics of the belt pulley,the real-time variation in the belt length slack during the transmission of the noncircular synchronous belt is significant,resulting in high probabilities of skipping and vibration.In this study,a noncircular tensioning pulley is added to create a stable three-pulley noncircular synchronous belt driving mechanism and a good synchronous belt tensioning,with no skipping;hence,the non-uniform output characteristic of the driven pulley is consistent with the theoretical value.In the circular noncircular noncircular three-pulley noncircular synchronous belt mechanism,the pitch curve of the driving synchronous belt pulley is circular,whereas those of the driven synchronous belt and tensioning pulleys are noncircular.To minimize the slack of the belt length of the synchronous belt and the constraint of the concavity and circumference of the tensioning pulley,an automatic optimization model of the tensioning pulley pitch curve is established.The motion simulation,analysis,and optimization code for a three-belt-pulley noncircular synchronous belt drive mechanism is written,and the variation in belt length slack under different speed ratios is analyzed based on several examples.The testbed for a circular-noncircular-noncircular three-pulley noncircular synchronous belt transmission mechanism is developed.The test shows that the three-pulley noncircular synchronous belt drives well.This study proposes an automatic optimization algorithm for the tensioning pulley pitch curve of a noncircular synchronous belt transmission mechanism;it yields a stable transmission of the noncircular synchronous belt transmission mechanism as well as non-uniform output characteristics. 展开更多
关键词 Noncircular synchronous belt drive slack calculation model Non-uniform speed transmission characteristics
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EFFECT OF CARBON CONTENT ON PROPERTIES OF SLACK-QUENCHED RAILS
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作者 ZHOU Qingyue WANG Shuqing SHAO Yangdao NIE Shufan ZHOU Zhenguo China Academy of Railway Sciences,Beijing 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1992年第5期349-353,共5页
A comparative investigation was carried out of the routine mechanical properties,fracture toughness,microstructure and hardness of slack-quenched rails containing different carbon contents.After the rails slack-quench... A comparative investigation was carried out of the routine mechanical properties,fracture toughness,microstructure and hardness of slack-quenched rails containing different carbon contents.After the rails slack-quenched,their strength and toughness,together with ductility, are obviously improved,and the higher the quench hardening is,the more the resistance to wear and shell will be.Discussion was also made of the reason for this improvement and of the effect of carbon content and quench hardening on the properties of rails in combination with the rail-laying trial. 展开更多
关键词 carbon content slack-quenched rail PROPERTY
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On the organizational slack and the choice of the technological innovation strategy in Chinese enterprises
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作者 Zhang Hongbo 《Engineering Sciences》 EI 2010年第2期92-96,共5页
This paper analyzed the relationship between organizational slack and technological innovation strategy in Chinese enterprises through building mathematic model and real options approach. The results show the organiza... This paper analyzed the relationship between organizational slack and technological innovation strategy in Chinese enterprises through building mathematic model and real options approach. The results show the organizational slack that explored and employed reached to a critical point and can promote enterprises to choose the independent innovation strategy based on R & D (Research and Development); And it is important to identify,explore and employ organizational slack correctly for strengthening the organizational independent innovation capability and raising its performance when the technological innovation strategy based on technological introduction is more and more difficult. 展开更多
关键词 organizational slack technological innovation strategy real options independent innovation technological introduction
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Pitfalls and Remedies in DEA Applications: How to Handle an Occurrence of Zero in Multipliers by Strong Complementary Slackness Conditions
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作者 Toshiyuki Sueyoshi Mika Goto 《Engineering(科研)》 2013年第5期29-34,共6页
This study discusses a guideline on a proper use of Data Envelopment Analysis (DEA) that has been widely used for performance analysis in public and private sectors. The use of DEA is equipped with Strong Complementar... This study discusses a guideline on a proper use of Data Envelopment Analysis (DEA) that has been widely used for performance analysis in public and private sectors. The use of DEA is equipped with Strong Complementary Slackness Conditions (SCSCs) in this study, but an application of DEA/SCSCs depends upon its careful use, as summarized in the guideline. The guideline consists of the five suggestions. First, a data set used in the DEA applications should not have a ratio variable (e.g., financial ratios) in an input(s) and/or an output(s). Second, radial DEA models under variable and constant Returns to Scale (RTS) need a special treatment on zero in a data set. Third, the DEA evaluation needs to drop an outlier. Fourth, an imprecise number (e.g., 1/3) may suffer from a round-off error because DEA needs to specify it in a precise expression to operate a computer code. Finally, when a large input or output variable may dominate other variables in DEA computation, it is necessary to normalize the data set or simply to divide each observation by its average. Such a simple treatment produces more reliable DEA results than the one without any data adjustment. This study also discusses how to handle an occurrence of zero in DEA multipliers by applying SCSCs. The DEA/SCSCs can serve for a multiplier restriction approach without any prior information. Thus, the propesed DEA/SCSCs can provide more reliable results than a straight use of DEA. 展开更多
关键词 DEA STRONG COMPLEMENTARY slackNESS CONDITIONS Linear Programming
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Government Subsidies and Enterprise Innovation:Moderation Effect of Absorbed Slack
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作者 Ren Na Wen Cheng 《Journal of Finance Research》 2019年第1期78-85,共8页
It is worth studying whether enterprises receiving government subsidies can transform them into innovative achievements under the constraints of enterprise resources.The data from the three industries of electronics,p... It is worth studying whether enterprises receiving government subsidies can transform them into innovative achievements under the constraints of enterprise resources.The data from the three industries of electronics,pharmaceuticals,and information technology during 2013-2016 were empirical tested to verify the moderating effect of the absorbed slack on the relationship between government subsidies and enterprise innovation.The results show that government subsidies can promote enterprise innovation;absorbed slack promotes enterprise innovation;the absorbed slack of enterprises plays a positive moderation role in the relationship between government subsidy and enterprise innovation.In other words,the enterprises with high absorbed slack can promote the innovation of enterprises by government subsidies.The conclusions provide theoretical guidance for government departments to select the most suitable enterprises which accept innovative subsidies. 展开更多
关键词 GOVERNMENT SUBSIDIES ENTERPRISE INNOVATION Absorbed slack
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Research on the relationship between financial slack and R & D investment in manufacturing industry under dynamic environment
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作者 MIAO Shifang 《International English Education Research》 2017年第6期37-39,共3页
As a part of the redundancy of organization, financial slack has become the focus of academic research. This paper takes the listed companies of manufacturing industry above Designated Size as sample, using multiple r... As a part of the redundancy of organization, financial slack has become the focus of academic research. This paper takes the listed companies of manufacturing industry above Designated Size as sample, using multiple regression to examine the relationship between corporate financial slack and R & D investment under dynamic environment, using the Malmquist index method based on DEA model to analyze the innovation efficiency of Chinese manufacturing industry during the period of2009-2013. The results show that: Financial slack and R & D investment intensity presents inverted "U" type relationship in?sample?companies, and the relationship is positively regulated by environmental dynamism; Financial slack promotes R & D investment but have lag effect. 展开更多
关键词 Dynamic environment Financial slack R D investment
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Research on the relationship between financial slack and R & D investment in manufacturing industry under dynamic environment
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作者 MIAO Shifang 《International English Education Research》 2017年第1期18-20,共3页
As a part of the redundancy of organization, financial slack has become the focus of academic research. This paper takes the listed companies of manufacturing industry above Designated Size as sample, using multiple r... As a part of the redundancy of organization, financial slack has become the focus of academic research. This paper takes the listed companies of manufacturing industry above Designated Size as sample, using multiple regressionto examine the relationship between corporate financial slack and R & D investment under dynamic environment, using the Malmquist index method based on DEA model to analyze the innovation efficiency of Chinese manufacturing industry during the period of 2009-2013. The results show that: Financial slack and R & D investment intensity presents inverted "U" type relationship in?sample?companies, and the relationship is positively regulated by environmental dynamism; Financial slackpromotes R & D investment but have lag effect. 展开更多
关键词 Dynamic environment Financial slack R D investment
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Relative Performance Evaluation of Competing Crude Oil Prices’ Volatility Forecasting Models: A Slacks-Based Super-Efficiency DEA Model
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作者 Jamal Ouenniche Bing Xu Kaoru Tone 《American Journal of Operations Research》 2014年第4期235-245,共11页
With the increasing number of quantitative models available to forecast the volatility of crude oil prices, the assessment of the relative performance of competing models becomes a critical task. Our survey of the lit... With the increasing number of quantitative models available to forecast the volatility of crude oil prices, the assessment of the relative performance of competing models becomes a critical task. Our survey of the literature revealed that most studies tend to use several performance criteria to evaluate the performance of competing forecasting models;however, models are compared to each other using a single criterion at a time, which often leads to different rankings for different criteria—A situation where one cannot make an informed decision as to which model performs best when taking all criteria into account. In order to overcome this methodological problem, Xu and Ouenniche [1] proposed a multidimensional framework based on an input-oriented radial super-efficiency Data Envelopment Analysis (DEA) model to rank order competing forecasting models of crude oil prices’ volatility. However, their approach suffers from a number of issues. In this paper, we overcome such issues by proposing an alternative framework. 展开更多
关键词 Forecasting CRUDE Oil Prices’ VOLATILITY Performance Evaluation slacks-Based Measure (SBM) Data Envelopment Analysis (DEA) COMMODITY and Energy Markets
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录像机“SLACK”灯报警及处理
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作者 熊仁礼 高黎明 《西部广播电视》 1995年第6期17-19,共3页
录像机“SLACK”灯报警及处理熊仁礼,高黎明(四川电视台610015南充电视台637100)1.概述录像机是机电综合技术的精密仪器,在其工作和运行的各种环境和状态中,为保护录像磁带及录像机机械不致受到损坏,各种类型... 录像机“SLACK”灯报警及处理熊仁礼,高黎明(四川电视台610015南充电视台637100)1.概述录像机是机电综合技术的精密仪器,在其工作和运行的各种环境和状态中,为保护录像磁带及录像机机械不致受到损坏,各种类型的录像机都设置了各自的保护系统,使... 展开更多
关键词 录像机 slack 报警 处理
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