Electrostatic-Capacitive MEMS Stiffness Sensor with Position-Feedback Mechanism

2021 ◽  
Author(s):  
Alessandro Nastro ◽  
Marco Ferrari ◽  
Vittorio Ferrari
Keyword(s):  
Feedback Mechanism ◽  
Position Feedback ◽  
Stiffness Sensor ◽  
Capacitive Mems

Simulation of Valve Position Feedback Mechanism Based on Pro/E and ADAMS

2014 ◽  
Vol 721 ◽  
pp. 244-248
Author(s):  
You Jun Fan ◽  
Fei Li ◽  
Hua Tian Zhao
Keyword(s):  
Feedback Mechanism ◽  
Dynamics Model ◽  
Joint Simulation ◽  
Force And Motion ◽  
Motion State ◽  
Position Feedback ◽  
Displacement Angle ◽  
Valve Position ◽  
Relationship Of ◽  
The Relationship

In traditional valve position feedback mechanism design, it is tested repeatedly and improvement after processing prototype, the process is complex and workload. Using Pro/E and ADAMS, the overall mechanical structure of the valve position feedback mechanism for joint simulation, and an analysis of the kinematics and dynamics model, simplified the design process of the repeated calculation, get the relationship of stem displacement-angle between gear, gear meshing force and motion state of the stem, the simulation value compared with the theoretical value, tallies with the data and shows that the simulation is reasonable.

scholarly journals Which Parameters Control the Leg Movement of a Walking Insect?: II. The Start of the Swing Phase

1985 ◽  
Vol 116 (1) ◽  
pp. 357-362 ◽  
Author(s):  
H. CRUSE
Keyword(s):  
Stance Phase ◽  
Stick Insect ◽  
Swing Phase ◽  
Feedback Mechanism ◽  
Threshold Values ◽  
Forward Movement ◽  
Carausius Morosus ◽  
Position Feedback ◽  
Leg Movement ◽  
Leg Position

When a stick insect (Carausius morosus) walks on a treadwheel with one leg standing on a platform beside the wheel, this leg can be considered to perform a prolonged stance phase. To elicit a swing phase in this situation, both load and position must decline below definite threshold values. The swing phase can be elicited when - given a sufficiently posterior leg position - a central temporal signal initiates a small forward movement, and this is followed by a decrease of load. It is possible for signals from the next posterior leg to change the position threshold at which the swing phase can be started, but these commands do not influence the force values during the stance phase. Thus position is one parameter used for the decision to end the stance phase. But it does not serve as a signal for a position feedback mechanism controlling leg movement during the stance phase.

1304 Development of an ER Microactuator with Inherent Position Feedback Mechanism

2008 ◽  
Vol 2008.8 (0) ◽  
pp. 119-120
Author(s):  
Kazuhiro YOSHIDA ◽  
Kazuhito KAMIYAMA ◽  
Joon-wan KIM ◽  
Shinichi YOKOTA
Keyword(s):  
Feedback Mechanism ◽  
Position Feedback

scholarly journals PROPOSITION OF AN ER MICROACTUATOR WITH INHERENT POSITION FEEDBACK MECHANISM

2008 ◽  
Vol 2008 (7-2) ◽  
pp. 551-554 ◽  
Author(s):  
Kazuhiro YOSHIDA ◽  
Kazuhito KAMIYAMA ◽  
Joon-wan KIM ◽  
Shinichi YOKOTA
Keyword(s):  
Feedback Mechanism ◽  
Position Feedback

Ultrastructural morphology of nontumorous lactotrophs in human pituitaries exposed to high prolactin levels

1987 ◽  
Vol 45 ◽  
pp. 896-897
Author(s):  
S. Jalalah ◽  
K. Kovacs ◽  
E. Horvath
Keyword(s):  
Anterior Pituitary ◽  
Secretory Activity ◽  
Pituitary Hormones ◽  
Feedback Mechanism ◽  
Endocrine Activity ◽  
Hormone Synthesis ◽  
Anterior Pituitary Hormones ◽  
Negative Feedback Mechanism ◽  
Ultrastructural Morphology ◽  
Transmission Electron

Lactotrophs, as many other endocrine cells, change their morphology in response to factors influencing their secretory activity. Secretion of prolactin (PRL) from lactotrophs, like that of other anterior pituitary hormones, is under the control of the hypothalamus. Unlike most anterior pituitary hormones, PRL has no apparent target gland which could modulate the endocrine activity of lactotrophs. It is generally agreed that PRL regulates its own release from lactotrophs via the short loop negative feedback mechanism exerted at the level of the hypothalamus or the pituitary. Accordingly, ultrastructural morphology of lactotrophs is not constant; it is changing in response to high PRL levels showing signs of suppressed hormone synthesis and secretion.By transmission electron microscopy and morphometry, we have studied the morphology of lactotrophs in nontumorous (NT) portions of 7 human pituitaries containing PRL-secreting adenoma; these lactotrophs were exposed to abnormally high PRL levels.

Kombinasi Mode Cipher Block Chaining Dengan Algoritma Triangle Chain Cipher Pada Penyandian Login Website

2018 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Dafirius Lombu ◽  
Siska Dame Tarihoran ◽  
Irwan Gulo
Keyword(s):  
Operation Mode ◽  
Feedback Mechanism ◽  
Database Access ◽  
Original Meaning ◽  
Mode Of Operation ◽  
Encryption And Decryption ◽  
Cryptographic Algorithms ◽  
Block Chaining

Generally, the database access of a website lies in the user login. When the login data is not accompanied by security techniques, it is very easily accessible by other parties. One effort that can be done to solve the problem is to encode the login data of website users based on cryptographic technique algorithm. Triangle Chain Cipher (TCC) is one of the classic cryptographic algorithms that encode data doubly and generate keys randomly along the plain. The process of encryption and decryption are interdependent to be one of the advantages of this algorithm. This algorithm will be more effective when combined with the Cipher Block Chaining (CBC) operation mode that is widely used in modern cryptographic algorithms today. The feedback mechanism between the blocks in this mode of operation is the operating advantage. This study describes how to combine the mode of operation of block chaining cipher with triangle chain cipher algorithm so that cipher data login website generated more random and difficult to find its original meaning.

Unstandardizing Testing: Low-Scoring American Minority Students in the Crosshairs of Conservative Policymakers

2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Sami Chedhli Nighaoui
Keyword(s):  
Critical Race Theory ◽  
Minority Students ◽  
Standardized Tests ◽  
Feedback Mechanism ◽  
Cultural Bias ◽  
Testing System ◽  
Quantitative Methodology ◽  
Race Theory ◽  
Cultural Backgrounds ◽  
Opt Out

That standardized tests do not accurately assess the true competencies of minority test takers is a widely shared claim among conservative educationists. The opt-out-of-testing community has lately grown unprecedentedly vocal in several states, questioning even more seriously the accountability of the testing system altogether. This paper adopts a Critical Race Theory perspective to investigate the conceptual underpinnings of conservative criticism as well as the interpretations made popular using quantitative methodology. The key premise of this paper is that a colorblind approach to testing understates the importance of a range of unquantifiable variables, mainly the linguitic and cultural backgrounds of the test takers, in determining assessment outcome. It attempts to demonstrate where specifically standardized tests may not be used as a reliable feedback mechanism and suggests that a more flexible assessment paradigm be considered, one that engages learning quality followup to keep cultural bias to a strict minimum.          

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