Impact of IMPROVE on algebraic manipulation, reasoning, patterns and analysing changes

Author(s):  
M. D. Bernick ◽  
E. D. Callender ◽  
J. R. Sanford

2012 ◽  
Vol 82 (2) ◽  
pp. 169-181 ◽  
Author(s):  
Michael C. Wittmann ◽  
Virginia J. Flood ◽  
Katrina E. Black

Author(s):  
Maher G. Mohamed

Abstract The screw algebra is used to efficiently derive expressions in compact form for both the angular accelerations of the moving links and the linear accelerations of points on the links of platform-type manipulators. The analysis employs the property that the acceleration state of the manipulator platform can be determined by considering the acceleration states of the links of only one — any one — of the manipulator legs. The obtained expressions provide an ease in symbolic and algebraic manipulation. The analysis is then extended to specify the acceleration center point of ithe nstantaneous motion of the manipulator platform. The acceleration center point is then used in expressing the distribution of the acceleration field of the platform instant motion which is important in manipulator synthesis. The special case of planar manipulators is studied and simpler expressions are derived. Numerical examples are presented for the analysis of a 3-DOF planar platform-type and of a 6-DOF spatial “Stewart Platform” manipulators to illustrate the analysis procedure.


2015 ◽  
Author(s):  
Xian Wu ◽  
Tianlong Zu ◽  
Elise Agra ◽  
N. Sanjay Rebello

2004 ◽  
Vol 127 (5) ◽  
pp. 931-940 ◽  
Author(s):  
Alba Perez ◽  
J. Michael McCarthy

This paper uses the exponential defined on a Clifford algebra of planar projective space to show that the “standard-form” design equations used for planar linkage synthesis are obtained directly from the relative kinematics equations of the chain. The relative kinematics equations of a serial chain appear in the matrix exponential formulation of the kinematics equations for a robot. We show that formulating these same equations using a Clifford algebra yields design equations that include the joint variables in a way that is convenient for algebraic manipulation. The result is a single formulation that yields the design equations for planar 2R dyads, 3R triads, and nR single degree-of-freedom coupled serial chains and facilitates the algebraic solution of these equations including the inverse kinematics of the chain. These results link the basic equations of planar linkage design to standard techniques in robotics.


1996 ◽  
Vol 16 (2) ◽  
pp. 98-110 ◽  
Author(s):  
Anitha Alnervik ◽  
Gunilla Svidén

Five qualified occupational therapists and their patients were videotaped during a treatment session. The occupational therapists first were asked to describe the session in a narrative form, i.e., “tell the story,” and then they were asked to describe the thoughts and considerations on which they had conducted the treatment session, i.e., “reflection on practice.” A qualitative analysis was performed in accordance with the model for clinical reasoning developed by Fleming (1991). Both quantitative and qualitative analysis showed that procedural reasoning was predominant both in storytelling and reflection on practice, and a very small number of comments was classified as interactive or conditional reasoning. The results of this preliminary investigation suggested that we should examine the role that reflection on practice plays in examining, developing, and teaching the art of occupational therapy.


2019 ◽  
Vol 7 (1) ◽  
pp. 124
Author(s):  
Asmarsha Qathrinada , ◽  
Pranoto ,

<p>Abstract<br />This article aims to find out how legal protection is provided to passengers in commercial air transport <br />activities in Indonesia, especially regarding airline responsibilities to passengers and the compensation <br />provided in case of flight delays due to negligence of the carrier. This research is performed with legal <br />research, using prescriptive characteristic. The research is using statute approach by reviewing the <br />regulations related to the issues. The source of the research is derived from primary legal materials namely <br />legislation, secondary materials from legal literatures, as well as tertiary or non-legal legal material. The <br />collection of legal materials was done by literature studies, and analyzed with deductive reasoning patterns. <br />Based on the result of the research, it can be concluded that the regulation of compensations given by <br />the airlines to passengers has been quite well regulated in the Minister of Transportation Regulation <br />No. 89 of 2015, but in the implementation, the government is still less firm in cracking down on airlines <br />that do not carry out their responsibility of the compensation regulated in Regulation of the Minister of <br />Transportation Number 77 in year 2011.<br />Keywords: compensation; flight delay; commercial air transportation.</p><p>Abstrak<br />Artikel ini bertujuan mengetahui bagaimana perlindungan hukum yang diberikan kepada penumpang <br />dalam kegiatan angkutan udara komersial di Indonesia, khususnya mengenai tanggung jawab maskapai <br />penerbangan terhadap penumpang serta apa kompensasi yang diberikan apabila terjadi penundaan <br />penerbangan karena kelalaian pihak pengangkut. Penelitian ini dilakukan dengan penelitian hukum dan <br />bersifat preskriptif. Pendekatan penelitian berupa pendekatan undang-undang dengan menelaah regulasi <br />yang besangkutan dengan isu yang penulis angkat dalam penulisan ini. Sumber penelitian berasal dari <br />bahan hukum primer yaitu perundang-undangan, bahan sekunder dari kepustakaan hukum, serta bahan <br />hukum tersier atau non-hukum. Pengumpulan bahan hukum dilakukan dengan studi kepustakaan, dan <br />menganalisis dengan pola penalaran deduktif.  Berdasarkan hasil penelitian maka dapat disimpulkan <br />bahwa  pengaturan  mengenai  kompensasi  yang  diberikan  oleh  maskapai  penerbangan  terhadap <br />penumpang  telah cukup  baik  diatur dalam Peraturan Menteri Perhubungan Nomor 89 Tahun 2015, <br />namun dalam pelaksanaannya pemerintah masih kurang tegas dalam menindak maskapai yang tidak <br />melaksanakan tanggung jawabnya untuk memberikan kompensasi sesuai dengan Peraturan Menteri <br />Perhubungan Nomor 77 Tahun 2011.<br />Kata kunci: kompensasi; keterlambatan penerbangan; pengangkutan udara komersial.</p>


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