A Method for the Prediction of Design Space for a Bend Stiffener Cone

2012 ◽  
Author(s):  
Y. Drobyshevski
Keyword(s):  
Design Space ◽  
Moderate Deviation ◽  
Analysis Method ◽  
Flexible Riser ◽  
Linear Solution ◽  
Floating Structures ◽  
Elastic Cone ◽  
Flexible Flow Lines ◽  
Number Of Segments ◽  
Selection Of

Bend stiffeners are commonly used to protect flexible flow-lines and dynamic risers from over-bending, especially in the areas where they interface with fixed or floating structures. Sizing of bend stiffeners and confirmation of their feasibility is an important step in the design of the complete riser system. The objective of this paper is to develop a method for the prediction of the design space for the bend stiffener cone, which is defined in terms of its length and diameter at the base. The analysis method is based on the analytical formulation for an elastic cone consisting of the main pipe and the hollow bend stiffener. A “marching” technique is developed which is based on combining linear solutions for several conical segments. The analysis method requires a small number of segments, and is efficient in dealing with large deflections. It is shown that even a linear solution alone for the bend stiffener cone provides good accuracy for moderate deviation angles. Criteria for setting the design space boundaries for the bend stiffener cone are discussed. The selection of load cases from the tension-angle curve is discussed and its effect on the shape of the design space is demonstrated. The method is illustrated by developing a design space for the bend stiffener of a typical flexible riser connected to the turret of an FPSO.

scholarly journals Modeling, comparison and evaluation of one-DOF six-bar bioinspired jumping leg mechanisms

2021 ◽  
Vol 13 (2) ◽  
pp. 168781402199295
Author(s):  
Ziqiang Zhang ◽  
Qi Yang ◽  
Xingkun Liu ◽  
Chuanzhong Zhang ◽  
Jinnong Liao
Keyword(s):  
Center Of Mass ◽  
Principal Component ◽  
Analysis Method ◽  
Index Distribution ◽  
Inertial Moment ◽  
Structure Index ◽  
Mean And Variance ◽  
Research Objects ◽  
Leg Mechanisms ◽  
Selection Of

One degree-of-freedom (DOF) jumping leg has the advantages of simple control and high stiffness, and it has been widely used in bioinspired jumping robots. Compared with four-bar jumping leg, six-bar jumping leg mechanism can make the robot achieve more abundant motion rules. However, the differences among different configurations have not been analyzed, and the choice of configurations lacks basis. In this study, five Watt-type six-bar jumping leg mechanisms were selected as research objects according to the different selection of equivalent tibia, femur and trunk link, and a method for determining the dimension of the jumping leg was proposed based on the movement law of jumping leg of locust in take-off phase. On this basis, kinematics indices (sensitivity of take-off direction angle and trunk attitude angle), dynamics indices (velocity loss, acceleration fluctuation, and mean and variance of total inertial moment) and structure index (distribution of center of mass) were established, and the differences of different configurations were compared and analyzed in detail. Finally, according to the principal component analysis method, the optimal selection method for different configurations was proposed. This study provides a reference for the design of one DOF bioinspired mechanism.

The Comparison Between Therapeutic Effects of Different Classes of Antidepressant Drugs in Treatment of Genetical and Reactional Depression

2009 ◽  
Vol 24 (S1) ◽  
pp. 1-1
Author(s):  
P. Molavi ◽  
M. Karimollahi ◽  
M. Faridi
Keyword(s):  
Antidepressant Drugs ◽  
Response Speed ◽  
Point Of View ◽  
Block Type ◽  
Therapeutic Effects ◽  
Response Type ◽  
Analysis Method ◽  
Dsm Iv ◽  
Selection Of ◽  
Analyze Data

Background:Depression as a common psychiatric disorder can occur in two types: Endogenous or genetic and exogenous or Reactional. These two types of depression, from the point of view of response speed to treatment and type of appropriate drug for treatment are different. This study has been executed to compare therapeutic effects of different classes of anti-depressant drugs in treatment of genetic and Reactional depression.Materials and methods:Present survey is a clinical-trial study, a completely randomly block type, that has performed on 30 patients (male and female). Selection of study sample accomplished randomly among unipolar depressed patients that has referred to Ardabil’s psychiatry clinic diagnosed based on DSM-IV criteria. Researcher - Made questionnaire, Beck, and Catelle depression test were used to collect data. To analyze data, for completely randomly blocked designs, two-factor variance analysis method and F test were used.Results:This study showed that Genetical depression does not response treatment Rapidly and its response type is not good and persistent. From the point of view of time, Reactional depression has a delaying response but its response type is good and persistent. In addition, no difference was observed in efficacy of different classes of drugs for treatment of these two types of depression. The results of this research showed that there is no difference between treatment response of two types of depression (Genetical and Reactional).Conclusions:There is no preference in efficacy of different classes of drugs in treatment of these two types of depression.

GIS Based Multi-Criteria decision support system and machine learning for Hospital Site Selection case study Oran - Algeria

2022 ◽  
Vol 14 (1) ◽  
pp. 0-0
Keyword(s):  
Site Selection ◽  
Decision Makers ◽  
Analysis Method ◽  
Automatic Learning ◽  
Hospital Site ◽  
Set Up ◽  
High Level ◽  
Selection Of ◽  
The Ideal

The selection of hospital sites is one of the most important choice a decision maker has to take so as to resist the pandemic. The decision may considerably affect the outbreak transmission in terms of efficiency , budget, etc. The main targeted objective of this study is to find the ideal location where to set up a hospital in the willaya of Oran Alg. For this reason, we have used a geographic information system coupled to the multi-criteria analysis method AHP in order to evaluate diverse criteria of physiological positioning , environmental and economical. Another objective of this study is to evaluate the advanced techniques of the automatic learning . the method of the random forest (RF) for the patterning of the hospital site selection in the willaya of Oran. The result of our study may be useful to decision makers to know the suitability of the sites as it provides a high level of confidence and consequently accelerate the power to control the COVID19 pandemic.

scholarly journals A selection of AKARI FIS BSC extragalactic objects

2015 ◽  
Vol 11 (S319) ◽  
pp. 101-101
Author(s):  
G. Marton ◽  
L.V. Tóth ◽  
L. G. Balázs ◽  
S. Zahorecz ◽  
Z. Bagoly ◽  
...  
Keyword(s):  
Far Infrared ◽  
Point Sources ◽  
Support Vector ◽  
Multidimensional Space ◽  
Quadratic Discriminant Analysis ◽  
Analysis Method ◽  
Vector Machines ◽  
Discriminant Analysis Method ◽  
Bright Source ◽  
Selection Of

AbstractThe point sources in the Bright Source Catalogue (BSC) of the AKARI Far–Infrared Surveyor (FIS) were classified based on their far–IR and mid–IR fluxes and colours using Quadratic Discriminant Analysis method (QDA) and Support Vector Machines (SVM). The reliability of our results show that we can successfully separate galactic and extragalactic AKARI point sources in the multidimensional space of fluxes and colours. However, differentiating among the extragalactic sub–types needs further information.

scholarly journals Strategi Kampanye Gubernur Basuki Tjahaja Purnama-Djarot Saiful Hidayat Dalam Menghadapi Pilkada Dki Jakarta 2017

2018 ◽  
Vol 10 (2) ◽  
pp. 142
Author(s):  
Rahmadya Putra Nugraha ◽  
Anastasya Christy Puspitasari
Keyword(s):  
Social Construction ◽  
Descriptive Analysis ◽  
Social Reality ◽  
Social Situation ◽  
Analysis Method ◽  
Campaign Strategy ◽  
The Real ◽  
Qualitative Descriptive ◽  
Gubernatorial Election ◽  
Selection Of

The selection of the 2017 DKI Jakarta governor was attended by 3 candidates, including the pair Agus Harimurti - Sylviana Murni, the pair Basuki Tjahaja Purnama - Djarot Saiful Hidayat and the couple Anies Baswedan - Sandiaga Uno. Basuki Tjahaj Purnama - Djarot Saiful Hidayat is a pair of incumbent governors who again competed in this gubernatorial election. The researcher focused on research to find out how the strategy used by the incumbent governor pair in facing the 2017 DKI Jakarta gubernatorial election. In this case, the author uses the Constructivist paradigm, namely, the truth of a social reality seen as a result of social construction, and the truth of a social reality is relative. The type of research used is descriptive, which describes a social situation as it is by using a qualitative descriptive analysis method. Based on this research regarding the campaign strategy of Basuki Tjahaja Purnama - Djarot Saiful Hidayat in facing the gubernatorial election, the researchers concluded that the pair Basuki Tjahaja Purnama - Djarot Saiful Hidayat possessed and re-demonstrated the real program that was directly felt by the community and also maximized the entire media to socialize their upcoming programs. Pemilihan gubernur DKI Jakarta 2017 diikuti oleh 3 pasangan calon antara lain pasangan Agus Harimurti – Sylviana Murni, Basuki Tjahaja Purnama – Djarot Saiful Hidayat dan Anies Baswedan – Sandiaga Uno. Pasangan Basuki Tjahaj Purnama – Djarot Saiful Hidayat adalah pasangan gubernur petahana yang kembali bersaing dalam pemilihan gubernur ini. Peneliti memfokuskan penelitian untuk mengetahui bagaimana strategi yang digunakan oleh pasangan gubernur petahana dalam menghadapi pemilihan gubernur DKI Jakarta 2017 ini. Dalam hal ini, penulis menggunakan paradigma Konstruktivis yaitu,  kebenaran suatu realitas sosial dilihat sebagai hasil konstruksi sosial, dan kebenaran suatu realitas sosial bersifat relatif.  Tipe penelitian yang digunakan dalam penelitian yaitu deskriptif, yang menggambarkan suatu keadaan sosial secara apa adanya dengan menggunakan metode analisis deskriptif kualitatif. Berdasarkan penelitian ini mengenai strategi kampanye Basuki Tjahaja Purnama – Djarot Saiful Hidayat dalam menghadapi pemilihan gubernur, maka peneliti membuat kesimpulan bahwa pasangan Basuki Tjahaja Purnama - Djarot Saiful Hidayat memiliki dan menunjukkan kembali program nyata yang sudah dirasakan langsung oleh masyarakat dan juga pasangan ini memaksimalkan seluruh media untuk mensosialisasikan program mereka yang akan datang.

scholarly journals ANALISIS PERILAKU KONSUMEN YANG MEMPENGARUHI PEMILIHAN TEMPAT WISATA PANTAI DENDANG MELAYU BATAM

2019 ◽  
Vol 3 (1) ◽  
pp. 22-28
Author(s):  
Muhammad Rasyid Ridho Lubis ◽  
Dwi Kartikasari
Keyword(s):  
Data Analysis ◽  
Consumer Behavior ◽  
Psychological Factors ◽  
City Government ◽  
Tourist Attraction ◽  
Analysis Method ◽  
Tourist Attractions ◽  
Material Evaluation ◽  
The Government ◽  
Selection Of

Dendang Melayu Beach is a public beach that is being developed by the Batam City Government. Although various efforts have been made by the government to increase the number of visitors to this beach, it turns out that the number of visitors has not necessarily increased consistently but fluctuated up and down. Therefore, this research was carried out to further explore the behavior of visitors in the hope that it could become a material evaluation of the government in developing this tourist attraction. This study aims to examine the effect of consumer behavior on the selection of Dendang Melayu Beach tourist attractions. The respondents of this study were 100 tourists who visited the Batam Dendang Beach. The data analysis method used is inductive statistics using multiple linear regression. The results of this study are the four variables of consumer behavior namely cultural, social, personal and psychological factors partially positive and significant effect on the choice of tourist attractions.

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