Effect of the balance on the bias pressure of partition wall between caverns No. 4 and No. 5 in the residual rock of the Longyou Grottos

2015 ◽  
pp. 185-190
Keyword(s):  
Partition Wall ◽  
Bias Pressure

VELOCITY FIELDS AND CO2 DISTRIBUTION IN THE NEAR FLOOR REGIONS OF A ROOM WITH PIG-SIMULATORS AND PARTITION WALL

2013 ◽  
Author(s):  
G. Zhang ◽  
S. Morsing ◽  
J.S. Strøm; ◽  
B. Bjerg ◽  
K. Svidt
Keyword(s):  
Velocity Fields ◽  
Partition Wall

Styrofoam bricks.

2021 ◽  
Vol 10 (1) ◽  
pp. 1-9
Author(s):  
P. Meghna ◽  
K.P. Dilraj ◽  
S.V. Aswin ◽  
K.R. Sreejith ◽  
N. Thrishna
Keyword(s):  
Key Words ◽  
High Strength ◽  
Waste Materials ◽  
Polystyrene Foam ◽  
Gas Emission ◽  
Load Bearing Capacity ◽  
Partition Wall ◽  
Main Challenge ◽  
Plastic Wastes ◽  
Present World

Pollution and accumulation of waste is one of the major problems that the present world faces. Of the waste materials the non-degradable plastic waste is the major issue. Among the plastic wastes, Styrofoam wastes share the lion's share. Styrofoam wastes are non-degradable also possess the threat of poisonous gas emission when burnt the main challenge is to recycle without the emission of poisonous gases. In this thought we come to the idea of Styrofoam bricks. The Styrofoam brick mainly consists of Styrofoam, acetone and sand. Styrofoam bricks can be manufactured through 4 kinds of process, dissolution of Styrofoam in acetone, mixing with sand, moulding and drying. Why we are preparing this brick is to get high strength and reduced weight also it is not brittle like the ordinary bricks. This will have good load bearing capacity. It can be used to construct partition wall, pavement, roofing etc. Key Words: Polystyrene Foam; Lightweight Bricks; Thermal Insulation; Pore-Forming.

scholarly journals DAMAGE OBSERVATION AND DETECTION USING ACCELEROMETER OF DRY PARTITION WALL INSTALLED IN STEEL MOMENT FRAME UNDER LARGE STORY DRIFT

2021 ◽  
Vol 86 (788) ◽  
pp. 1400-1411
Author(s):  
Shotaro YAGI ◽  
Jun IYAMA ◽  
Yoshihiro FUKUSHIMA ◽  
Shoichi KISHIKI ◽  
Takanori ISHIDA ◽  
...  
Keyword(s):  
Moment Frame ◽  
Steel Moment Frame ◽  
Partition Wall ◽  
Story Drift

scholarly journals PHYSICS OF SINGULAR POINTS IN QUANTUM MECHANICS

2003 ◽  
Vol 01 (04) ◽  
pp. 543-560 ◽  
Author(s):  
IZUMI TSUTSUI ◽  
TAMÁS FÜLÖP
Keyword(s):  
Quantum Mechanics ◽  
Berry Phase ◽  
Singular Points ◽  
One Dimension ◽  
Partition Wall ◽  
Quantum Singularities ◽  
Quantum Force ◽  
Physical Phenomena ◽  
Particle Statistics ◽  
Behavior Characteristic

Defects or junctions in materials serve as a source of interactions for particles, and in idealized limits they may be treated as singular points yielding contact interactions. In quantum mechanics, these singularities accommodate an unexpectedly rich structure and thereby provide a variety of physical phenomena, especially if their properties are controlled properly. Based on our recent studies, we present a brief review on the physical aspects of such quantum singularities in one dimension. Among the intriguing phenomena that the singularities admit, we mention strong versus weak duality, supersymmetry, quantum anholonomy (Berry phase), and a copying process by anomalous caustics. We also show that a partition wall as a singularity in a potential well can give rise to a quantum force which exhibits an interesting temperature behavior characteristic to the particle statistics.

Performance of Parallel-Flow Gas-to-Gas Micro-Double-Tubes-Heat Exchangers

2009 ◽  
Author(s):  
Chungpyo Hong ◽  
Yutaka Asako ◽  
Koichi Suzuki
Keyword(s):  
Heat Transfer ◽  
Heat Exchangers ◽  
Circular Tube ◽  
Steel Tube ◽  
Parallel Flow ◽  
Bulk Temperature ◽  
Stainless Steel Tube ◽  
Cross Sectional ◽  
Partition Wall ◽  
Annular Tube

Heat transfer performance of two-stream parallel-flow gas-to-gas micro-double-tubes-heat exchangers was investigated numerically. The flow passages of the micro- double-tubes-heat exchanger are a circular tube for hot passage and a concentric annular tube for cold passage. A circular tube of r = 50 μm and a concentric annular tube of ri = 51 μm and ro = 71 μm with an identical cross-sectional area were chosen and the selected length was 20mm, respectively. Then, the partition wall is assumed to be a stainless steel tube with 1 μm in thickness. Numerical methodology is based on the arbitrary-Langrangian-Eulerian method. Computations were performed for wide flow range to find the effects of capacity ratio on the heat transfer characteristics of gas-to-gas micro-double-tubes-heat exchangers. The results are presented in form of temperature contours, bulk temperature, total temperatures and heat flux variation along the length. Also, the effectiveness and the number of transfer units approach and the estimation of the heat exchange rate were discussed.

scholarly journals Macro-Modelling Approach for the In-Plane Cyclic Response of Cold-Formed Steel Partition Walls

2020 ◽  
Vol 10 (22) ◽  
pp. 8163
Author(s):  
Dong-Hyeon Shin ◽  
Hyung-Joon Kim
Keyword(s):  
Analytical Model ◽  
Structural Damage ◽  
Damage Mechanism ◽  
Dissipated Energy ◽  
Analysis Model ◽  
Partition Wall ◽  
Cyclic Response ◽  
Partition Walls ◽  
Cold Formed Steel ◽  
Modelling Approach

Past earthquakes demonstrate that non-structural elements could be vulnerable to a relatively low intensity ground shaking which induces negligible structural damage. The study aims to improve previously developed macro-models of cold-formed steel (CFS) partition walls to properly capture their in-plane cyclic response and damage states of important components in a CFS partition wall under imposed excitation. An effective analytical modelling approach is adopted for a simple modelling procedure and less computational effort. The proposed analysis model of partition walls consisting of several lumped spring elements is verified using direct comparison with two full scale CFS partition wall tests. The analytical and experimental results are compared in terms of force–displacement relations, dissipated energy, and an influential damage mechanism of components consisting of partition walls. The comparison shows that the analytical model well captures the experimental response such as the overall strength and stiffness degradation and pinching behavior. Moreover, the damage mechanism predicted by the analytical model is in good agreement with that observed during the tests.

scholarly journals Influence of Thermal Insulation’s and Phase Change Material’s Insertion within a Partition Wall on the Energy Consumption of a Conditioned Room under Adjacent Local Periodical Temperature Effect

2020 ◽  
Vol 307 ◽  
pp. 01024
Author(s):  
Nisrine Hanchi ◽  
Hamid Hamza ◽  
Rabiaa Idmoussa ◽  
Jawad Lahjomri ◽  
Abdelaziz Oubarra
Keyword(s):  
Energy Consumption ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Insulation ◽  
Phase Change Materials ◽  
Thermal Conditions ◽  
Thermal Activity ◽  
Partition Wall ◽  
Reduction Of Energy Consumption ◽  
Change Material

The aim of this work is to study the combined insertion effect of Phase Change Materials (PCM) and thermal insulation within a partition wall separating a conditioned room from an adjacent local which is under a periodic thermal activity. This is done by a comparative study with a reference wall under the same thermal conditions. The comparison criterion is the energy density transmitted to the local conditioned in established regime. The results show that the inclusion of thermal insulation and phase change material provides a significant reduction of energy consumption of the conditioned local; thereby a judicious choice of phase change material with thermal level and range melting temperature reduces further this reduction.

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