A New Method of High-Precision Coordinate Transformation Research Based on Bursa Model

2013 ◽  
Vol 846-847 ◽  
pp. 1312-1315
Author(s):  
Ying Qi Guo ◽  
Xian Ge Cao ◽  
Fei Chao Bi ◽  
Xiang Lai Meng ◽  
Yan Ping Gao
Keyword(s):  
High Precision ◽  
Coordinate Transformation ◽  
Common Point ◽  
New Method ◽  
Result Show ◽  
The Common ◽  
Transformation Parameters ◽  
The Individual

The common point coordinate precision affect accuracy of coordinate transformation. In order to overcome the individual common point coordinate precision is too low or the error is large under some condition, a new method of high-precision coordinate transformation based on bursa model was discussed, which used the theory of robust resistance estimation to solve and calculate the high-precision coordinate transformation parameters, finally achieved the purpose of high-precision coordinate transformation. By calculation and comparison with experimental date, the result show that the method is practical and effective, so it is completely feasible in application surveying engineering.

Study on Tooth Profiles of the Harmonic Drive

1990 ◽  
Vol 112 (1) ◽  
pp. 131-137 ◽  
Author(s):  
K. Kondo ◽  
J. Takada
Keyword(s):  
Relative Motion ◽  
Neutral Line ◽  
New Method ◽  
Harmonic Drive ◽  
Gear Mechanism ◽  
The Common ◽  
Set Up ◽  
The Individual

The present paper deals with an analysis of the kinematics and geometry of the tooth engagement of the harmonic drive, and presents a new method for determining tooth profiles of the harmonic drive. First, two assumptions are set up: (1) Though there is relative motion among the respective teeth of the flexspline during flexing, the individual teeth themselves can be considered to be rigid. (2) The pitch between the respective teeth of the flexspline is constant on the neutral line. Experiments confirm the existence of a neutral line along the flexspline rim which maintain the same length as that prior to bending. Then, tooth profiles of the circular spline and the flexspline are determined according to the theory of gear mechanism that the common tooth normal at the meshing point passes through the pitch point. The analysis is carried out in a plane mechanism.

A New Measurement Model of GPS and Inclinometer in Coordinate Transform

2013 ◽  
Vol 807-809 ◽  
pp. 1934-1939
Author(s):  
Zhi Yang Gou ◽  
Chang Ru Liu ◽  
Sheng Hong Fan ◽  
Xiao Tong Qi ◽  
Qiang Wang ◽  
...  
Keyword(s):  
Coordinate System ◽  
Great Improvement ◽  
Basic Principle ◽  
Coordinate Transformation ◽  
Measurement Model ◽  
New Method ◽  
Cartesian Coordinate System ◽  
Rotation Parameters ◽  
The Common ◽  
Cartesian Coordinate

According to the basic principle of GPS and the characteristics of inclinometer in measuring angle, this paper proposed a new method based on the combination of double GPS with inclinometer to measure the rotation parameters of coordinate transformation. Firstly, model coordinate system is established which associated with the GPS and inclinometer, then the three rotation angles between model coordinates system and Station Local Cartesian Coordinate System (SLCCS) can be get by biaxial inclinometer output and the projection of double GPS coordinates in the SLCCS. Experiment shows that, the method is simple, fast, effective, and accuracy fully meets the engineering measurement needs. Compared with the common points conversion method, this method has great improvement in the aspects of accuracy, efficiency etc..

2-D Coordinate Transformation Based on Centre of Gravity Datum

2011 ◽  
Vol 243-249 ◽  
pp. 5835-5838
Author(s):  
Tao Sheng Liu ◽  
Sheng Xiang Huang ◽  
Li Luo ◽  
Xian Gui Zeng
Keyword(s):  
Coordinate System ◽  
Coordinate Transformation ◽  
Scale Factor ◽  
Transformation Model ◽  
Centre Of Gravity ◽  
The Common ◽  
Transformation Parameters

2-D Coordinate transformation between different coordinate system including four parameters: two translations, one rotation, and one scale factor parameter. Because of ill-condition matrix, the common points’ little errors may cause big fluctuation of parameters’ results, which cause the four transformation parameters unreliable. Consider the comparability between coordinate transformation model and centre of gravity datum of free net adjustment, may eliminate the two translation parameters by auxiliary gravity datum condition. This article validate this method with instance.

scholarly journals Predicting Academic Performance of Engineering Students Using Ensemble Method

2020 ◽  
Vol 2 (1) ◽  
pp. 89-98
Author(s):  
Tek Bist Bithari ◽  
Sharan Thapa ◽  
Hari K.C.
Keyword(s):  
Academic Performance ◽  
Linear Regression ◽  
Engineering Students ◽  
Ensemble Methods ◽  
Hard Copy ◽  
Related Factors ◽  
Result Show ◽  
The Common ◽  
Common Problems ◽  
The Individual

 One of the common problems that most of the engineering institutions face in recent times is poor academic results. The statistics of the IOE semester result show that since 2009 A.D., the average pass percentage has been reducing in an average from 50% to 40% and moving towards decreasing scenarios. The study aims to predict an engineering student's academic performance based on their past educational records, demographic factors, family backgrounds, and other related factors. Firstly, a predictive model is built using the traditional classifiers Decision Tree, SVM, and Linear Regression, which had shown good performance in similar types of study. After that, we have implemented one of the popular ensemble Methods, voting, which is known for improving the individual classifier's performance. Voting classifier combines the predictions of base classifiers by averaging those predictions. The result revealed that the accuracy, precision, recall, and F1 score had been considerably improved by using ensemble voting than that of the individual classifiers. The data used in the study was collected directly from the hard copy personal files of each pass out student of Paschimanchal Engineering Campus, Pokhara between the years 2004 to 2015 AD.

scholarly journals FOTOĞRAFLAR ÜZERİNDEN BİR YABANCILAŞMA ANALİZİ

2020 ◽  
Vol 15 (4) ◽  
pp. 293-302
Author(s):  
Egemen Umut Şen
Keyword(s):  
Virtual World ◽  
Self Esteem ◽  
Common Point ◽  
Moral Law ◽  
Inner Voice ◽  
Universal Language ◽  
The Common ◽  
Power Centers ◽  
The Individual ◽  
Descriptive Method

Socrates' concept of daimon, Kant's internal court in the universal moral law, Maslow's self-realization step in the hierarchy of needs, Horney's theory of neurosis, the common point of all these thinking systems; It means that people will be liberated by realizing themselves by developing their birth potential, and they will build a productive, self-confident and happy identity. Otherwise, the individual who cannot realize himself will be dependent on the sociocultural society to which he is adapted, turn to temporary power centers, lose his self-esteem by moving away from his inner voice, and develop neurotic tendencies by alienating himself as a result of his self-conflict. According to Jung's analytical psychology, the characteristics that we have acquired through adaptation to the environment and culture, namely personas; By losing our relationship with our personality, it turns into masks that cause us to become alienated. The reputation that the individual tries to gain through consumption patterns or the profiles he creates in the virtual world is nothing but masks behind which he hides. In this study, using the descriptive method, the concept of alienation was tried to be defined in the dialectic of philosophy, sociology and psychology disciplines, and it was described through the art of photography, which is a universal language that does not get caught in language barriers through the mask metaphor.

The Red Neuronal Pigment in the Nervous System of the Mussel, Mytilus Edulis: Localization and Its Effect on Lateral Ciliary Activity with Spectral and Analytical Changes

1981 ◽  
Vol 39 ◽  
pp. 494-495
Author(s):  
Anthony A. Paparo ◽  
Judith A. Murphy
Keyword(s):  
Nervous System ◽  
Mytilus Edulis ◽  
Neuronal Cell ◽  
Ciliary Activity ◽  
Neuronal Cell Bodies ◽  
The Central Nervous System ◽  
Intracellular Organelles ◽  
The Common ◽  
The Individual ◽  
Cryostat Sections

The purpose of this study was to localize the red neuronal pigment in Mytilus edulis and examine its role in the control of lateral ciliary activity in the gill. The visceral ganglia (Vg) in the central nervous system show an over al red pigmentation. Most red pigments examined in squash preps and cryostat sec tions were localized in the neuronal cell bodies and proximal axon regions. Unstained cryostat sections showed highly localized patches of this pigment scattered throughout the cells in the form of dense granular masses about 5-7 um in diameter, with the individual granules ranging from 0.6-1.3 um in diame ter. Tissue stained with Gomori's method for Fe showed bright blue granular masses of about the same size and structure as previously seen in unstained cryostat sections.Thick section microanalysis (Fig.l) confirmed both the localization and presence of Fe in the nerve cell. These nerve cells of the Vg share with other pigmented photosensitive cells the common cytostructural feature of localization of absorbing molecules in intracellular organelles where they are tightly ordered in fine substructures.

What Can Economists Contribute to the Common Good Tradition?

2017 ◽  
Author(s):  
Andrew M. Yuengert
Keyword(s):  
Common Good ◽  
Common Pool Resources ◽  
Economic Approach ◽  
Public And Private ◽  
Private Provision ◽  
The Public ◽  
The Common Good ◽  
The Common ◽  
The Individual ◽  
Insight Into

Although most economists are skeptical of or puzzled by the Catholic concept of the common good, a rejection of the economic approach as inimical to the common good would be hasty and counterproductive. Economic analysis can enrich the common good tradition in four ways. First, economics embodies a deep respect for economic agency and for the effects of policy and institutions on individual agents. Second, economics offers a rich literature on the nature of unplanned order and how it might be shaped by policy. Third, economics offers insight into the public and private provision of various kinds of goods (private, public, common pool resources). Fourth, recent work on the development and logic of institutions and norms emphasizes sustainability rooted in the good of the individual.

Punk as Folk: Continuities and Tensions in the UK and Beyond

2020 ◽  
Author(s):  
Pete Dale
Keyword(s):  
Folk Music ◽  
Music Making ◽  
Collective Creativity ◽  
Living Tradition ◽  
Wide Range ◽  
The Us ◽  
The Common ◽  
The Individual ◽  
The Uk

Numerous claims have been made by a wide range of commentators that punk is somehow “a folk music” of some kind. Doubtless there are several continuities. Indeed, both tend to encourage amateur music-making, both often have affiliations with the Left, and both emerge at least partly from a collective/anti-competitive approach to music-making. However, there are also significant tensions between punk and folk as ideas/ideals and as applied in practice. Most obviously, punk makes claims to a “year zero” creativity (despite inevitably offering re-presentation of at least some existing elements in every instance), whereas folk music is supposed to carry forward a tradition (which, thankfully, is more recognized in recent decades as a subject-to-change “living tradition” than was the case in folk’s more purist periods). Politically, meanwhile, postwar folk has tended more toward a socialist and/or Marxist orientation, both in the US and UK, whereas punk has at least rhetorically claimed to be in favor of “anarchy” (in the UK, in particular). Collective creativity and competitive tendencies also differ between the two (perceived) genre areas. Although the folk scene’s “floor singer” tradition offers a dispersal of expressive opportunity comparable in some ways to the “anyone can do it” idea that gets associated with punk, the creative expectation of the individual within the group differs between the two. Punk has some similarities to folk, then, but there are tensions, too, and these are well worth examining if one is serious about testing out the common claim, in both folk and punk, that “anyone can do it.”

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