Mathematical Method of a New Fast BEM for 2D Potential Problems

2010 ◽  
Author(s):  
Weiwei Wang ◽  
Yiming Chen ◽  
Zhenfang Han ◽  
Yongchun Xu
Keyword(s):  
Mathematical Method ◽  
Potential Problems

Microbulldozing and Microchiseling

1969 ◽  
Vol 27 ◽  
pp. 134-135
Author(s):  
J.N. Ramsey ◽  
D.P. Cameron ◽  
F.W. Schneider
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Material Handling ◽  
Microprobe Analysis ◽  
Foreign Matter ◽  
Specific Location ◽  
Potential Problems ◽  
Knoop Indenter ◽  
Scanning Electron ◽  
Microhardness Tester

As computer components become smaller the analytical methods used to examine them and the material handling techniques must become more sensitive, and more sophisticated. We have used microbulldozing and microchiseling in conjunction with scanning electron microscopy, replica electron microscopy, and microprobe analysis for studying actual and potential problems with developmental and pilot line devices. Foreign matter, corrosion, etc, in specific locations are mechanically loosened from their substrates and removed by “extraction replication,” and examined in the appropriate instrument. The mechanical loosening is done in a controlled manner by using a microhardness tester—we use the attachment designed for our Reichert metallograph. The working tool is a pyramid shaped diamond (a Knoop indenter) which can be pushed into the specimen with a controlled pressure and in a specific location.

Linear Discriminatory Analysis: A Patient Classifying for Research and Production Control

1971 ◽  
Vol 10 (02) ◽  
pp. 96-102 ◽  
Author(s):  
B. HALLEN ◽  
P. HALL ◽  
H. SELANDER
Keyword(s):  
Mathematical Method ◽  
Medical Information ◽  
Production Control ◽  
Human Ability ◽  
Discriminatory Analysis

Administrative and medical information about the patient forms, in each case, a pattern, the complexity of which increases as the number of data grows. Even when the data are 4—5 in number, the human ability to recognize and distinguish between different patterns begins to fail, A mathematical method (linear discriminatory analysis) has been worked out. This system of analysis appears to provide opportunities of placing patients with the same or similar patterns in classes which are diagnostically, prognostically or therapeutically homogeneous.

The “Mixing” of Implant Systems

1991 ◽  
Vol 4 (02) ◽  
pp. 38-45 ◽  
Author(s):  
F. Baumgart
Keyword(s):  
Stainless Steel ◽  
Additional Risk ◽  
Bone Screw ◽  
Application Technique ◽  
Quality Controls ◽  
Implant Materials ◽  
Osteosynthesis Plate ◽  
Potential Problems ◽  
Manufacturing Procedure

SummaryThe so-called “mixing” of implants and instruments from different producers entertain certain risks.The use of standardized implant materials (e.g. stainless steel ISO 5832/1) from different producers is necessary but is not sufficient to justify the use of an osteosynthesis plate from one source and a bone screw from another.The design, dimensions, tolerances, manufacturing procedure, quality controls, and application technique of the instruments and implants also vary according to make. This can lead to damage, failure or fracture of the biomechanical system called “osteosynthesis” and hence the failure of the treatment undertaken. In the end, it is the patient who pays for these problems.Some examples also illustrate the potential problems for the staff and institutions involved.The use of a unique, consistent, well-tested, and approved set of implants and instruments is to be strongly recommended to avoid any additional risk.

Mathematical Method to Unfolding Couplings

2019 ◽  
Vol 17 (17) ◽  
pp. 63-64
Author(s):  
Carmen Popa ◽  
Ivona Petre ◽  
Ruxandra-Elena Bratu
Keyword(s):  
Mathematical Method ◽  
Mathematical Methods ◽  
Intersection Curves ◽  
Four Cylinders

AbstractThe purpose of this paper is to establish the intersection curves between cylinders, using Mathematica program. The equations curves which are inferred by mathematical methods are introduced in this program. This paper takes into discussion the case of four cylinders.

Commons Research and Pastoralism in the Context of Variability

2020 ◽  
Vol 24 (2) ◽  
pp. 272-285
Author(s):  
Jill Philine Blau
Keyword(s):  
Ecological Systems ◽  
Potential Problems ◽  
Pastoral Management ◽  
The Commons

Research has shown that pastoralism and the management of the commons are connected (Bollig and Lesogorol 2016). In this article I discuss how the concept of variability, which emerged from discussions of dryland ecologies in the 1980s (Homewood 2008), can inform and enhance research on the commons and vice versa. Research on the commons can further elucidate the understanding of pastoralist practices. I conclude with reflections drawn from some empirical examples in the literature, the use of the socio-ecological systems (SES) framework, and discuss the benefits and potential problems when applied to heterogeneous and flexible pastoralist practices and to the pastoral management of the commons.

Study On Optimum Age For Reaching The Peak Sport Form For High Performance Sports

2019 ◽  
pp. 91-98
Author(s):  
Sebastian Vicol ◽  
Florin Trofin ◽  
Cezar Honceriu
Keyword(s):  
Mathematical Method ◽  
High Performance ◽  
Performance Capacity ◽  
Sport Training

The improvement of performance capacity represents the objective to be achieved within sport training, as it is materialised by obtaining valuable results. The sport condition represents the essence of performance capacity. This is the reason why I have decided to study thoroughly the notions related to „sport condition”, but mainly because I wanted to reach an agreement with respect to the age when performance athletes and swimmers achieve the peak sport condition during their career, obtaining the most important victories or results in important competitions. By analysing the specialised literature, based on both the observation, and statistical-mathematical method, I have taken over and calculated the average ages both for women and for men using nine studies of sport specialists. Splitting both the athletic and swim trials in two categories, namely: speed/explosion trials and endurance trial, I have reached the conclusion that the average age when men achieve the peak sport condition is 26 years and of women 25.3 years. Also, each trial has its characteristics, therefore, the average ages of reaching the peak sport condition are different.

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