scholarly journals A new theory of migration of radon and its daughters in the ideal condition and their migration equation

2003 ◽  
Vol 52 (10) ◽  
pp. 2457
Author(s):  
Le Ren-Chang ◽  
Jia Wen-Yi ◽  
Wu Yun-Ping
Keyword(s):  
Ideal Condition ◽  
Migration Equation ◽  
The Ideal

Approaching to the ideal condition of plasma confinement by applying external resonant fields in IR-T1 tokamak

2015 ◽  
Vol 81 (3) ◽  
Author(s):  
Sakineh Meshkani ◽  
Mahmood Ghoranneviss ◽  
Mansoureh Lafouti
Keyword(s):  
Magnetic Field ◽  
Turbulent Transport ◽  
Edge Plasma ◽  
Ideal Condition ◽  
Plasma Confinement ◽  
Applied Bias ◽  
Inverse Results ◽  
Electric And Magnetic Field ◽  
Helical Magnetic Field ◽  
The Ideal

For understanding the effect of resonant helical magnetic field (RHF) and bias on the edge plasma turbulent transport, the radial and poloidal electric field (Er, EP), poloidal and toroidal magnetic field (BP, Br) were detected by the Langmuir probe, magnetic probe and diamagnetic loop. The poloidal, toroidal and radial velocity (VP, Vr, Vt) can be determined from the electric and magnetic field. In the present work, we have investigated the effect of the magnitude of bias (Vbias = 200v, Vbias = 320v) on Er, EP, BP, Bt, VP, Vr, Vt. Moreover, we applied RHF with L = 2, L = 3 and L = 2 and 3 and investigate the effect of the helical windings radius on above parameters. Also, the experiment was repeated by applying the positive biasing potentials and RHF's simultaneously. The results show that by applying bias to the plasma at t = 15 msec at r/a = 0.9, Er, BP and Bt increase while EP decreases. The best modification occurs at Vbias = 200v. By applying RHF to the plasma, both the electric and magnetic field vary. Er reaches the highest in the presence of RHF with L = 3. The same results are obtained for BP, Bt, VP and Vt. While the inverse results are obtained for EP and Vr. Finally, RHF and bias are applied simultaneously to the plasma. With applied bias with Vbias = 200v and RHF with L = 2 and 3, we reach to the ideal circumstance. The same results obtain in the situation with Vbias = 320v and RHF with L = 2 and 3.

scholarly journals Energy Dissipation in Solid Roller Bucket and Controlled Stilling Basin for Ogee Stepped Spillway

2019 ◽  
Vol 8 (4) ◽  
pp. 2109-2112
Keyword(s):  
Energy Dissipation ◽  
Laboratory Experiments ◽  
Ideal Condition ◽  
Stepped Spillway ◽  
Type Ii ◽  
Dimensional Parameter ◽  
Stilling Basin ◽  
Sequent Depth ◽  
Tail Water ◽  
The Ideal

Hydraulic jump type II stilling basin is generally preferred as an energy dissipator for ogee spillway but it is uneconomical due to longer structure. On the other hand, roller bucket uses relatively shorter structure over a sloping apron or horizontal stilling basin. In this study, an attempt has been made to evaluate the performance of an ogee profile stepped spillway in combination with solid roller bucket and stilling basin type II for energy dissipation. Laboratory experiments are performed on a physical working model of ogee profile stepped spillway at discharge ranging from 0.0032 to 0.0069 m3 /s for a head of 1.5m, 4m & 7m and the results compared for energy dissipation (non-dimensional parameter (y c / h) = 0.69). The model results show that stepped spillway model without v-notch achieves 92.40 % energy dissipation. Thus this model is found to be more suitable to acquire the ideal condition of sequent depth and tail water depth in stilling basin for all the discharges.

scholarly journals Structural mitigation measures for flood reduction in urban area: A case study of Ciliwung watershed

2020 ◽  
Vol 200 ◽  
pp. 01004
Author(s):  
Rizki Maulana Fadillah ◽  
Hafizh Tsaqib ◽  
Aryanti Karlina Nurendyastuti ◽  
Miftahul Jannah ◽  
Rian Mantasa Salve Prastica
Keyword(s):  
River System ◽  
Mitigation Measures ◽  
Ideal Condition ◽  
Water Infrastructure ◽  
Embankment Dam ◽  
The Earth ◽  
Earth Embankment ◽  
Infrastructure Maintenance ◽  
The Ideal

Flooding is an obstacle for water infrastructure which installed in a river system in Ciliwung, West Java, Indonesia. The climate change triggers unpredictable rainfall which occurs in the watershed, therefore the vulnerability of river and other infrastructures are alarming. The rehabilitation and maintenance strategies are needed to make water infrastructures in the river system obtain lower damage. The research aims to simulate the 2-D HEC-RAS modelling of river system and stability. The result produces the water level of the river even in 1000-year discharge flood. Also, the research proposes the earth embankment dam for flood reduction in the watershed. The dam is designed according to the ideal condition. The simulation of HEC-RAS shows that the river experiences flooding in a certain condition. Besides, the research concludes that designed dam could overcome the flooding problem and suitable strategy for water infrastructure maintenance towards flooding impacts. Further investigation towards soil data for designed dam should be further analyzed to obtain better and comprehensive understanding.

Rekindling Hong Kong’s Magic

2017 ◽  
Author(s):  
Yue Chim Richard Wong
Keyword(s):  
Economic Growth ◽  
Health Care ◽  
Hong Kong ◽  
Regulatory Control ◽  
Public Expenditures ◽  
Ideal Condition ◽  
Political Landscape ◽  
Basic Law ◽  
Deficit Financing ◽  
The Ideal

Hong Kong’s divisive and fragmented political landscape provides the ideal condition for the proliferation of regulatory control. When the pressure on our government to spend more on housing, health care, and education is even greater than that in Singapore, and the Basic Law disallows deficit financing, then raising the regulatory burden is the only political solution available. Unfortunately, this will have far more damaging consequences on the economy. What is to be done? Can Hong Kong steer a path that allows it to fund the rising demand for public expenditures while promoting economic growth, so that the additional spending is economically affordable and politically feasible? That question will be addressed in this volume.

scholarly journals E-books for children with autism: Best read alone or with a therapist?

2020 ◽  
Vol 36 (1) ◽  
pp. 19-32
Author(s):  
Erin Soares ◽  
Therese Miller ◽  
Kathleen Ciffone ◽  
Kirsten Read
Keyword(s):  
Children With Autism ◽  
Autism Spectrum ◽  
Ideal Condition ◽  
Storybook Reading ◽  
Applied Behavioral Analysis ◽  
Story Reading ◽  
Children With Asd ◽  
Shared Storybook Reading ◽  
The Individual ◽  
The Ideal

Children with autism spectrum disorder (ASD) seemingly prefer tablets to other methods of intervention, though professionals posit that a therapist’s presence is beneficial. In this experiment, two unique e-stories were created specifically for children with ASD. Ten children with low- or nonverbal ASD heard each story presented on an iPad; one narrated through the iPad, and one read by a therapist trained in Applied Behavioral Analysis (ABA). The within-participants design enabled researchers to measure the individual benefit of each type of story reading. After hearing each book, participants were tested on their comprehension via multiple choice, sequencing, and open-ended questions. Results indicated that the ideal condition for these young children with low- and nonverbal ASD was the therapist-read condition. These findings suggest that simple stories presented on a rewarding platform, with the minimally intrusive assistance of a therapist, provide young, verbally-challenged children with ASD with a foundation for receiving the benefits of shared storybook reading.

Stability Analysis of the New Repetitive Learning Controller for Cutting Systems

2006 ◽  
Vol 505-507 ◽  
pp. 1039-1044
Author(s):  
Ming Guo Her ◽  
Jih Ming Chen ◽  
Ming In Ho
Keyword(s):  
Stability Analysis ◽  
Asymptotic Stability ◽  
Dynamic System ◽  
Robust Stability ◽  
Global Asymptotic Stability ◽  
Periodic Motion ◽  
Ideal Condition ◽  
Repetitive Learning ◽  
Cutting System ◽  
The Ideal

The new repetitive learning for the control of the periodic motion has already been developed. The structure and parameters of the dynamic system don’t need to be known exactly by using this controller, in advance. And it will be shown the new repetitive learning controller is more efficiency than the traditional controller. In this study, it will be proved the system using new repetitive learning controller is global asymptotic stability under the ideal condition. It will be also shown the system is robust stability under the nonideal condition. Lastly, the noncircular cutting system that will be illustrated to show the efficiency of stability for the repetitive learning controller is conducted.

Study of Displacement Value of the Electron-Beam in the Electron Gun in Electron-Beam Furnace

2013 ◽  
Vol 652-654 ◽  
pp. 2391-2394
Author(s):  
Dong Hui Zhang ◽  
Chun Dong Liu ◽  
Jian Ming Liang ◽  
Chang Sheng Li
Keyword(s):  
Mathematical Model ◽  
Electron Beam ◽  
Space Charge ◽  
Molten Metal ◽  
Space Charge Effect ◽  
Electron Gun ◽  
Ideal Condition ◽  
Charge Effect ◽  
Beam Spot ◽  
The Ideal

The concept of maximal and minimal displacement value of the electron-beam was proposed considering the influence of space charge effect based on the displacement value of the electron-beam in the process of magnetic deflection scanning in the ideal condition. The deduction of mathematical model of the maximal and minimal displacement value was accomplished. The position of the beam spot can be more accurately controlled by the model, thus it is made sure that un-molten metal is bombarded by the beam spot accurately, which can increase the melt quality.

scholarly journals Simulation of Thermoset Injection for Bulk Moulding Compounds (BMC)

2011 ◽  
Vol 471-472 ◽  
pp. 1101-1106
Author(s):  
Mohd Khairol A. Arifin ◽  
Shamsuddin Sulaiman ◽  
B.T. Hang Tuah Baharudin ◽  
Tang Sai Hong ◽  
S. Sreenivasan
Keyword(s):  
Injection Moulding ◽  
Polyester Resin ◽  
Ideal Condition ◽  
Mould Temperature ◽  
Complex Part ◽  
Wear And Tear ◽  
Moulding Machine ◽  
Average Variance ◽  
Actual Part ◽  
The Ideal

This paper discusses about the simulation of the process of injection moulding for thermoset materials namely Bulk Moulding Compounds (BMC). BMC is a polyester resin based compound with glass fibre additives. In this paper a complex part was used to simulate and obtain the parameters for moulding BMC. Autodesk Moldflow Plastics Insight was used to run the simulation. Two main parameters i.e. Injection time and mould temperature were considered. Six different sets of parameters were used and the settings were optimized. The obtained optimized settings are 15.08 seconds and 145°C. The obtained parameters were then applied and the actual part was tested using an injection-moulding machine. After the simulation, changes were also made to the actual mould to improve the moulding conditions. Extra air vents were added at the problematic areas to ease the flow. There was an average variance of 7% which was thought to be acceptable as the simulation considers the ideal condition, where as there may be external factors such as the machine wear and tear during the actual moulding of the part. It can be said that the simulation was run successfully and tested during actual moulding.

scholarly journals Mengkaji Relasi Agama dan Ideologi

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Roni Dwi Hartanto
Keyword(s):  
Ideal Condition ◽  
Human Being ◽  
Comprehensive Description ◽  
The Ideal ◽  
The Way

Abstract:Religion and ideology are two interesting terms to be discussed and researched. Both of the terms were able to give an ideal purpose of life which is desirable by every human being. Both of religion and ideology were able to give comprehensive description about the ideal-things which is intended by the human being to look for the happiness of life. Both of religion and ideology have properly arranged the way to achieve the ideal-condition even needed serious struggle to realize it. Moreover, both of religion and ideology have also given inner satisfaction and strength to their followers. Religion and ideology can be illustrated as both side of coin which is interrelated. Ideology can be as religion because of its power which is able to make available of the ideal way (solution) for its followers. As well as ideology, religion is not just spiritual way, but also able to make available ideal description and straighten up the dimension of life, socially, politically, and also culturally.Keywords: Religion, Ideology, Relation of Ideology and Religion, Modernity, and genocide.

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