MPCC: Strong Stability of M-stationary Points

In this paper we study the class of mathematical programs with complementarity constraints MPCC. Under the Linear Independence constraint qualification MPCC-LICQ we state a topological as well as an equivalent algebraic characterization for the strong stability (in the sense of Kojima) of an M-stationary point for MPCC. By allowing perturbations of the describing functions up to second order, the concept of strong stability refers here to the local existence and uniqueness of an M-stationary point for any sufficiently small perturbed problem where this unique solution depends continuously on the perturbation. Finally, some relations to S- and C-stationarity are briefly discussed.

Holomorphic continuation into a matrix ball of functions defined on a piece of its skeleton

The question of the possibility of holomorphic continuation into some domain of functions defined on the entire boundary of this domain has been well studied. The problem of describing functions defined on a part of the boundary that can be extended holomorphically into a fixed domain is attracting more interest. In this article, we reformulate the problem under consideration: Under what conditions can we extend holomorphically to a matrix ball the functions given on a part of its skeleton? We describe the domains into which the integral of the Bochner—Hua Luogeng type for a matrix ball can be extended holomorphically. As the main result, we present the criterion of holomorphic continuation into a matrix ball of functions defined on a part of the skeleton of this matrix ball. The proofs of several results are briefly presented. Some recent advances are highlighted. The results obtained in this article generalize the results of L.A. Aizenberg, A.M. Kytmanov and G. Khudayberganov.

Identification and assessment of a nonlinear dynamic actuator model for controlling an experimental flexible wing

In this paper, the effect of nonlinear actuator dynamics on the performance of an active load alleviation system for an experimental flexible wing is studied. Common nonlinearities such as backlash or rate limits are considered for the control surface actuator. An aeroelastic simulation model of a flexible wing with control surface is being used. With this, a parameter study is carried out to quantify the impact of the individual nonlinearities on the overall closed-loop performance by means of describing functions. Finally, the nonlinear actuator model with parameters identified from dedicated tests is experimentally validated allowing for an accurate prediction of the expected gust load alleviation performance.

Effect of Different Fuels On Combustion Instabilities in an Annular Combustors

Combustion instability in annular combustors of jet engines is a recurring issue. In the present study, the characteristics of instabilities for different fuels are investigated by combining the instability maps obtained in a laboratory-scale annular combustor equipped with multiple swirling spray injectors (MICCA-Spray) and flame describing functions (FDFs) from a single sector configuration (SICCA-Spray). Two types of liquid fuels are injected as hollow cone sprays: heptane, which is fairly volatile, and dodecane, which is less volatile. Experiments are also conducted with gaseous propane, premixed with air, which serves as a reference. An instability map is systematically drawn by varying the global equivalence ratio and thermal power. The data indicate that the amplitude and frequency of instabilities depend, for the same operating point, on the fuel injection conditions and fuel type. Overall trends show that premixed propane is unstable in a broad operating domain. Injection of liquid fuels induce changes in flame time lag that modify the unstable regions. For heptane, the instability map is closer to the propane reference map, whereas dodecane exhibits wider stable regions. An attempt is made to understand these features by examining the FDF, which gives the ratio of relative fluctuations in heat release rate to the relative fluctuations in velocity. The FDFs measured in a single sector configuration give access to gain and phase information that can be used to determine unstable bands and calculate an instability index guiding the interpretation of the differences in instabilities of the three fuels.

The Design of The Tuk-Tuk Lakeside Resort Lake Toba (Green Architecture)

The high number of tourists who come to visit during the holiday season comes to Samosir Island. However, the number of tourists who come to the island of Samosir and the number of accommodations available at this time have not been able to meet the high interest of visiting tourists. The design of the Tuk-Tuk Lakeside Lake Toba Resort is one way to help achieve the benefit of tourists visiting the current Samosir island for comfortable lodging facilities and still feel what it is like to return to nature. The research methodology begins with collecting data, studying literature, surveying the location of the research, and also designing problem-solving. In creating an object to be designed, the designer can carry out a variety of alternative design approaches, one of which is to approach the theme that will be used in the designation, Green Architecture. The selection of Green Architecture themes in buildings is considered capable of describing functions and describing culture. Approach to the idea that takes air circulation systems that do not use the air conditioner or ac that is applied to the main buildings of hotels, restaurants, and resorts. Air and contour on the land on the plains of the unspoiled island of Samosir can become local wisdom that can be utilized in designing Tuk-Tuk lakeside Danau Toba Resort.

The ANALYZING THE ACCOUNTING INFORMATION SYSTEM SALES CASH IN IMPROVE THE EFECTIVITY SALES

The aims of this research are: Analyzing the Accounting System of cash sales implemented at UD. Tani Mulyo with Accounting System whether it is appropriate theory. This research is a case study (1) Describing the cash sales activities and describing functions, procedures, documents, accounting records for cash sales, (2) Provide comparisons to Accounting Information System applied to SIA according to the theory adapted (3) Create Flowchart in accordance with existing procedures. Based on the analysis it could be concluded that: (1) The existence of overlapping tasks and responsibilities in the work on related functions. (2) The absence of Accounting Information System and Flowchart. (3) Document usage and accounting records in the accounting system is still simple and manual. (4) Although the sales are done smoothly, but in accordance with the system and procedures appropriate for use in the company will further improve the effectiveness of the sales activities. With the increase in sales effectiveness, the company's results are also increasing.