scholarly journals Dynamic Analysis of a Competition-Cooperation Enterprise Cluster with Core-Satellite Structure and Time Delay

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Wenjie Hu ◽  
Tao Dong ◽  
Hua Zhao
Keyword(s):  
Upper Bound ◽  
Production Capacity ◽  
Positive Equilibrium ◽  
Satellite Structure ◽  
Enterprise Cluster ◽  
Enterprise Clusters ◽  
The Common ◽  
Core Enterprise ◽  
Cooperative Relationship ◽  
Production Period

Core and satellite structure is one of the common structures in enterprise clusters. In core and satellite structure, there are one core enterprise and at least two satellite enterprises. There exist a competitive relationship between satellite enterprises and a cooperative relationship between satellite enterprise and core enterprise. However, the dynamic evolution of competition-cooperation enterprise clusters with core-satellite structure is not well understood. In this paper, a novel competition-cooperation enterprise cluster model with core-satellite structure is proposed. The boundedness of the positive equilibrium is investigated. It is found that there exists upper bound of both core enterprise output and satellite enterprise output and the upper bound of core enterprise not only depends on its own production capacity but also depends on the production capacity of two satellite enterprises. Then, by selecting the production period as bifurcating parameter, the conditions of local stability and Hopf bifurcation are obtained. Once the production period passes a critical value, the output of both core enterprise and satellite enterprise loses stability and displays periodic fluctuations. This may lead to the decline of efficiency of enterprise and resource mismatch. Furthermore, the fluctuation properties are studied. Finally, a numerical example is presented to show the effectiveness of theorem.

Collaborative Response Model on Business Event of Multi-Core Enterprise Cluster for SaaS Platform

2013 ◽  
Vol 5 (4) ◽  
pp. 1-15
Author(s):  
Wang Shuying ◽  
Cao Shuai ◽  
Yufang Sun
Keyword(s):  
Response Model ◽  
Enterprise Cluster ◽  
Enterprise Clusters ◽  
Multi Agent ◽  
Business Functions ◽  
Core Enterprise ◽  
Business Collaboration ◽  
Collaboration Process ◽  
Event Based ◽  
Collaborative Diagnosis

To achieve the needs of business collaboration between business-related multi-core enterprise clusters based on Software as a Service (SaaS) platform, a multi-core management mechanism based on single-core collaboration relationship and business-related multi-core collaboration relationships were erected for the modern industrial system. On base of implicit authority of business functions, a collaborative response model on business event of multi-core enterprise cluster for SaaS platform was established, and an event-based business collaboration process and its algorithms for multi-core enterprise cluster were presented. The model and algorithms had been used in quality problems of auto warranty which needs multi-agent collaborative diagnosis. Business-related agents include after-sales provider, OEM, the assembly parts supplier and the culprit supplier could collaborative diagnosis on base of the SaaS platform.

Analysis of energy consumption in the production of hot mix asphalt (batch mix plant)

2016 ◽  
Vol 43 (12) ◽  
pp. 1044-1051 ◽  
Author(s):  
Ivica Androjić ◽  
Zlata Dolaček Alduk
Keyword(s):  
Energy Consumption ◽  
Influencing Factors ◽  
Hot Mix Asphalt ◽  
Asphalt Mixture ◽  
Production Capacity ◽  
Daily Production ◽  
Mineral Mixture ◽  
The Republic ◽  
Production Period ◽  
Mixture Samples

This paper describes tests in which influencing factors that affect energy consumption in the rotary drum were monitored. The monitored influencing factors are moisture, delays in daily production, hourly production capacity, and temperature of produced hot mix asphalt (HMA). The tests include the production of 88 079 t of HMA of continuous and discontinuous gradation on a cyclic asphalt plant in the Republic of Croatia. In 2014, 182 production terms were monitored (155 observed), whereas the moisture content was tested using the same number of input mineral mixture samples. The temperature of the produced asphalt mixture was measured using approximately 67 753 samples during the entire production period. Delays in work and hourly production capacity were measured during production by recording the duration of working time and delays. The final result of this study is the creation of a regression model of the correlation between energy consumption and temperature of the asphalt mixture and the hourly capacity and moisture in the mineral aggregate.

The Krull and global dimension of the tensor product of quantum tori

2016 ◽  
Vol 15 (09) ◽  
pp. 1650174
Author(s):  
Ashish Gupta
Keyword(s):  
Tensor Product ◽  
Upper Bound ◽  
Tensor Products ◽  
Global Dimension ◽  
Base Field ◽  
Quantum Torus ◽  
Common Value ◽  
Quantum Tori ◽  
Special Cases ◽  
The Common

An [Formula: see text]-dimensional quantum torus is defined as the [Formula: see text]-algebra generated by variables [Formula: see text] together with their inverses satisfying the relations [Formula: see text], where [Formula: see text]. The Krull and global dimensions of this algebra are known to coincide and the common value is equal to the supremum of the rank of certain subgroups of [Formula: see text] that can be associated with this algebra. In this paper we study how these dimensions behave with respect to taking tensor products of quantum tori over the base field. We derive a best possible upper bound for the dimension of such a tensor product and from this special cases in which the dimension is additive with respect to tensoring.

scholarly journals Design Application And Its Economic Analysis Of Quick Tempe Technology In Pamulang

2019 ◽  
Vol 2 ◽  
pp. 277-289
Author(s):  
Theofilus Christian ◽  
Tabligh Permana ◽  
Stacia Andani Fortunata ◽  
Della Rahmawati ◽  
Irvan Setiadi Kartawiria ◽  
...  
Keyword(s):  
Economic Analysis ◽  
Real Life ◽  
Production Capacity ◽  
Production Method ◽  
Infrastructure Investment ◽  
Addition Method ◽  
Current Production ◽  
Normal Method ◽  
The Common ◽  
Scheduling Models

Ipeh Tempe House in Pamulang was unable to fulfill their demand for more tempe production due to their limitation to expand the production using their own method. Quick tempe technology is a tempe production method with less production time than the common production method. Implementation of this method could increase production capacity without further infrastructure investment. Prior the implementation, the quick tempe technology was adjusted with the current production method in Ipeh Tempe House. Adjustment made was especially in the proper ratio of starter addition, the proper GDL addition method, and the maximum number of back slopping. The scheduling models of GDL tempe production method in Ipeh tempe house were designed to increase the production capacity of Ipeh tempe house, and the economic analysis was also performed to see whether the schedules suggested was feasible to do in real life, by calculating the profits generated by the schedules, and all of them were more profitable than normal method. To conclude, the procedure can create more batches, while giving more profit, but validation for the procedure and calculation is still needed to be done, other thing such as back slopping sensory test is also need to be done.

Analysis of Wind Turbine Capacity Factor Improvement by Correcting Yaw Error Using LIDAR

2017 ◽  
Author(s):  
Roozbeh Bakhshi ◽  
Peter Sandborn
Keyword(s):  
Energy Production ◽  
Wind Farm ◽  
Production Capacity ◽  
Wind Farms ◽  
Power Production ◽  
Capacity Factor ◽  
Offshore Wind ◽  
The Common ◽  
Turbine Capacity ◽  
The Cost

Yaw error is the angle between a turbine’s rotor central axis and the wind flow. The presence of yaw error results in lower power production from turbines. Yaw error also puts extra loads on turbine components, which in turn, lowers their reliability. In this study we develop a stochastic model to calculate the average capacity factor of a 50 turbine offshore wind farm and investigate the effects of minimizing the yaw error on the capacity factor. In this paper, we define the capacity factor in terms of energy production, which is consistent with the common practice of wind farms (rather than the power production capacity factor definition that is used in textbooks and research articles). The benefit of using the energy production is that it incorporates both the power production improvements and downtime decreases. For minimizing the yaw error, a nacelle mounted LIDAR is used. While the LIDAR is on a turbine, it collects wind speed and direction data for a period of time, which is used to calculate a correction bias for the yaw controller of the turbine, then it will be moved to another turbine in the farm to perform the same task. The results of our investigation shows that although the improvements of the capacity factor are less than the theoretical values, the extra income from the efficiency improvements is larger than the cost of the LIDAR.

Construction and Implementation of Virtual Organization for Regional SMEs

2013 ◽  
Vol 310 ◽  
pp. 703-709
Author(s):  
Shi Bo Qin
Keyword(s):  
Small And Medium Enterprises ◽  
Virtual Organization ◽  
Virtual Organizations ◽  
Satellite Structure ◽  
Basic Organization ◽  
Enterprise Cluster ◽  
Different Types ◽  
Medium Enterprises ◽  
Implementing Strategies

By analyzing the basic organization and characteristics of regional small and medium enterprises cooperation, and based on two typical cooperative structure of center satellite structure and enterprise cluster common in current SMEs and their mixture structure, we proposed principles and methods of establishing vertically integrated, horizontal integrated and mixed virtual organizations, also discussed the applying areas and implementing strategies for different types of regional virtual organizations.

Stability and Hopf Bifurcation in a HIV-1 System with Multitime Delays

2015 ◽  
Vol 25 (10) ◽  
pp. 1550132 ◽  
Author(s):  
Lingyan Zhao ◽  
Haihong Liu ◽  
Fang Yan
Keyword(s):  
Hopf Bifurcation ◽  
Time Delays ◽  
Virus Production ◽  
Positive Equilibrium ◽  
Equilibrium Solutions ◽  
Viral Therapy ◽  
The Stability ◽  
Three Delays ◽  
Production Period ◽  
Hiv 1

In this paper, we propose a mathematical model for HIV-1 infection with three time delays. The model examines a viral-therapy for controlling infections by using an engineered virus to selectively eliminate infected cells. In our model, three time delays represent the latent period of pathogen virus, pathogen virus production period and recombinant (genetically modified) virus production period, respectively. Detailed theoretical analysis have demonstrated that the values of three delays can affect the stability of equilibrium solutions, can also lead to Hopf bifurcation and oscillated solutions of the system. Moreover, we give the conditions for the existence of stable positive equilibrium solution and Hopf bifurcation. Further, the properties of Hopf bifurcation are discussed. These theoretical results indicate that the delays play an important role in determining the dynamic behavior quantitatively. Therefore, it is a fact that delays are very important, which should not be missed in controlling HIV-1 infections.

scholarly journals A fast exact quantum algorithm for solitude verification

2017 ◽  
Vol 17 (1&2) ◽  
pp. 15-40
Author(s):  
Seiichiro Tani
Keyword(s):  
Distributed Computing ◽  
Boolean Function ◽  
Upper Bound ◽  
Common Knowledge ◽  
Quantum Algorithm ◽  
Symmetric Boolean Function ◽  
Anonymous Network ◽  
The Common ◽  
Number Of Parties ◽  
Solvable Problems

Solitude verification is arguably one of the simplest fundamental problems in distributed computing, where the goal is to verify that there is a unique contender in a network. This paper devises a quantum algorithm that exactly solves the problem on an anonymous network, which is known as a network model with minimal assumptions [Angluin, STOC’80]. The algorithm runs in O(N) rounds if every party initially has the common knowledge of an upper bound N on the number of parties. This implies that all solvable problems can be solved in O(N) rounds on average without error (i.e., with zero-sided error) on the network. As a generalization, a quantum algorithm that works in O(N log_2 (max{k, 2})) rounds is obtained for the problem of exactly computing any symmetric Boolean function, over n distributed input bits, which is constant over all the n bits whose sum is larger than k for k belongs to {0, 1, . . . , N −1}. All these algorithms work with the bit complexities bounded by a polynomial in N.

scholarly journals Analisis Yuridis Kekuatan Hukum Memorandum Of Understanding Yang Timbul Karena Hubungan Perdata Internasional Antara Negara Indonesia Dan Negara Australia

2020 ◽  
Vol 5 (2) ◽  
pp. 46-56
Author(s):  
Devie Devie
Keyword(s):  
Good Faith ◽  
Business World ◽  
Work Relations ◽  
Library Research ◽  
Library Studies ◽  
The Common ◽  
Cooperative Relationship ◽  
Permanent Form ◽  
Made In ◽  
Legal Force

Cooperation relationships governed by international civil law in the business world between 2 (two) countries or more generally use written agreements to obtain legal certainty for both parties and as a manifestation of good faith / good faith in establishing work relations. The form of cooperation in business between countries is often not made in a permanent form, on the grounds that it is only in the form of an agreement or an initial agreement, there are negotiations until only for consideration. This then becomes the background for the birth of a Memorandum of Understanding in business agreements between countries. The Memorandum of Understanding was initially only considered as a preliminary agreement that has no legal force in binding and forcing the parties concerned to fulfill their obligations and cannot be used as a means of proof in a court of law, this is the view of the general public and the court in a country adhering to the common legal system law, one of which is the state of Australia, whereas according to the Indonesian state which has no law in regulating the Memorandum of Understanding has the legal force in binding and forcing it like any other formal agreement, if it is linked to the Civil Code. The method used in researching this thesis is a type of normative legal research as a guideline for writing, where the author collects data through library research or the results of library studies by reviewing the laws of Indonesia and Australia as the main data in writing this thesis report with the help of journals -journals obtained from electronic means that discuss problems in this thesis report so that the author can conclude from the problem under study. Based on the results of research conducted by researchers, it can be concluded that a Memorandum of Understanding can be formed by two countries with different legal systems with the aim of creating a binding cooperative relationship and has the power to force both parties to fulfill obligations if there is an agreement between parties to state in the form of a Memorandum of Understanding there is an "intention to create legal relations" or intention to form a legal relationship.

scholarly journals On the Upper Bounds of the Real-Valued Predictions

2019 ◽  
Vol 13 ◽  
pp. 117793221987126 ◽  
Author(s):  
Silvia Benevenuta ◽  
Piero Fariselli
Keyword(s):  
Upper Bound ◽  
Pearson Correlation ◽  
Upper Bounds ◽  
Coefficient Of Determination ◽  
Data Sets ◽  
Experimental Uncertainty ◽  
Practical Applications ◽  
Real Value ◽  
The Common ◽  
Learning Data

Predictions are fundamental in science as they allow to test and falsify theories. Predictions are ubiquitous in bioinformatics and also help when no first principles are available. Predictions can be distinguished between classifications (when we associate a label to a given input) or regression (when a real value is assigned). Different scores are used to assess the performance of regression predictors; the most widely adopted include the mean square error, the Pearson correlation (ρ), and the coefficient of determination (or [Formula: see text]). The common conception related to the last 2 indices is that the theoretical upper bound is 1; however, their upper bounds depend both on the experimental uncertainty and the distribution of target variables. A narrow distribution of the target variable may induce a low upper bound. The knowledge of the theoretical upper bounds also has 2 practical applications: (1) comparing different predictors tested on different data sets may lead to wrong ranking and (2) performances higher than the theoretical upper bounds indicate overtraining and improper usage of the learning data sets. Here, we derive the upper bound for the coefficient of determination showing that it is lower than that of the square of the Pearson correlation. We provide analytical equations for both indices that can be used to evaluate the upper bound of the predictions when the experimental uncertainty and the target distribution are available. Our considerations are general and applicable to all regression predictors.

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