2024-03-29T03:26:20Z
https://jesaun.journals.ekb.eg/?_action=export&rf=summon&issue=16853
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
EFFECT OF AGGREGATE GRADATION AND TYPE ON HOT ASPHALT CONCRETE MIX PROPERTIES
Afaf A. H.
M.
Mineral aggregates make up 90 to 96% of a HMA mix by weight or approximately 75 to 85% byvolume. The properties of the mineral aggregates have significant affects in performance of ourroadways which offers the possibility of investment in these properties towards resisting differentranges of external applied loads and environmental conditions. Therefore, aggregate characteristicsdeeply affect the performance of asphalt pavements. Gradation is one of the importantcharacteristics of aggregates affecting permanent deformation of hot mix asphalt. The objective ofthis research is to investigate the impact of aggregate gradation variations on various properties ofasphalt concrete mixtures. Fine, medium and coarse gradation mixtures for different aggregate typeswere tested to investigate the effects of variation in the aggregate types and gradation on mixproperties. The asphalt contents of the mixes were maintained at the job mix design contents.Properties investigated were, Marshall Stability, Marshall Flow, unit weight, air voids, and voids inmineral aggregate. Analysis of the considering different aggregate type data revealed that the finecoarseand coarse-fine gradation variations had the greatest impact on mix.The research program concentrated on the Marshall Design criteria for bituminous mixes. Theresults indicated that optimum asphalt content (OAC) is different due to aggregate type A coarsegrading with 25 mm maximum size is found to give the most satisfactory result from the stand pointof stability, stiffness, and voids characteristics. Test results reveal that the bituminous concrete withWCA can give satisfactory results when they are constructed using coarse gradation.
Bituminous concrete
Gradation of aggregate
Marshall Design criteria
2014
05
01
567
574
https://jesaun.journals.ekb.eg/article_115005_89944674fb431ba5cd4f774a12b21f8f.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
STUDYING THE EFFECT OF STEEL SLAG POWDER ON MARSHALL STIFFNESS AND TENSILE STRENGTH OF HOT MIX ASPHALT
Afaf A. H.
M.
Iron slag powder is a by product that can be obtained during steel manufacturing. Using ironslag powder in road paving can have many environmental advantages such as keeping cleanenvironment and saving natural construction materials. This paper discusses the effect of using ironslag powder on Marshall Stiffness and indirect tensile strength of hot mix asphalt. Three hot mixasphalt with various iron slag contents, namely; 0%, 10% and 20% by weight of total mixture werestudied. Laboratory testing showed an enhancement in different Marshall Properties and indirecttensile strength of hot mix asphalt modified with iron slag. As the iron slag content increases, theMarshall Stability and indirect tensile strength of the studied mixtures increases as well. This is anindication of mixtures performance improvement in addition to the fact that iron slag powder can beused in asphalt paving for environmental advantages.
Iron slag powder
hot mix asphalt
Marshall/Stiffness, indirect tensile strength
2014
05
01
575
581
https://jesaun.journals.ekb.eg/article_115010_d2b072fcc0ee28b44fec66c1f827d280.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
PROPERTIES OF HIGH STRENGTH CONCRETE CONTAINING ELECTRIC ARC FURNACE STEEL SLAG AGGREGATE
Mohammed
Emad Abdelazzzim
Mohammed
Abdelsame Eid
Noby
Mohammed Hassan
Steel slag is produced as by-product during the oxidation of steel pellets in an electric arc furnace.This by-product can be broken down to smaller sizes to be used as aggregates in asphalt andconcrete. In the current research, locally produced steel slag in Egypt was used as a replacement ofthe natural aggregate for producing high strength concrete. Four groups consisted of twenty-fournormal, high and ultra-high strength concrete mixtures with replacement percentages 0%, 33.33%,66.67% and 100% by weight of the coarse aggregate with two cement contents (450 kg/m3 and 600kg/m3) and three silica fume percentages (0%, 10% and 20%) were investigated. In addition, otherthree groups consists of six concrete mixes of cement contents 350 kg/m3 and 450 kg/m3 were castto study the possibility of using the fine electric arc furnace steel slag particles as a replacement ofthe used natural fine aggregate in the concrete mixtures . The effect of the studied key parameterswhich are the replacement ratio of the used electric arc furnace steel slag (EAFSS), the cementcontent and the silica fume percentage on the volume weight, compressive strength, flexuralstrength, indirect tensile strength, static of elasticity modulus and Permeability coefficient werestudied. The results indicated that the highest concrete strength was obtained for the mixturespossessed a percentage of 66.67% steel slag aggregates as a replacement of the coarse aggregate.Moreover, the replacement of the natural fine aggregate by the fine steel slag as well as the EAFSScoarse aggregate produced a high strength pervious porous concrete.
Electric Arc Furnace Steel Slag
High strength concrete
Coarse Aggregate
Fine Aggregate
Compressive strength
Indirect Tensile Strength
flexural strength
Modulus of Elasticity and Permeability
2014
05
01
582
608
https://jesaun.journals.ekb.eg/article_115011_603e4589d403e523e4e11d15e748d52e.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
EFFECT OF SOME PARAMETERS ON PERFORMANCE OF DIRECT HIGH-RATE FILTRATION IN WATER TREATMENT
Haitham M.
Amin
A. A.
Mohamed
Water filtration is a process for separating suspended or colloidal impurities from water by passagethrough a porous medium, usually a bed of sand or other medium. Direct filtration is a watertreatment scheme that does not include separate in-plant sedimentation. It is not a new process but itis becoming increasingly important because of the safe drinking water. Water treatment plants areusually required to reduce filtered water turbidity down to 1 NTU. In this study, sand was used as afiltration media under constant direct high rate filtration conditions and performance. Turbidityremoval performance and head loss were investigated as functions of filtration rate, bed depth,influent turbidity and media size. The filtration materials used in a downflow filter were sand andgravel. The sand bed thickness was changed from 60 cm to 120 cm with media size 1-2 mm, whilethe gravel layer thickness was kept constant at 30 cm. The influent raw water turbidity was variedfrom 10 to 30 NTU. The range of filtration rate was between 200 and 400 m3/m2/day. From analysisand discussions of the experimental results, it was found that the depth of media has significanteffect on the water quality and head loss, with the increasing of sand depth in the filter, both thewater quality and the head loss increases. It was found that a sand depth of 120 cm is able to give aconstant filtration rate from 200 to 400 m3/m2/day with acceptable quality (≤ 1 NTU) for values ofinfluent turbidity ≤ 10 NTU.
Direct filtration
Turbidity Removal
Water treatment
high rate filtration
2014
05
01
609
628
https://jesaun.journals.ekb.eg/article_115013_ad21abac5ccf06d3259155cc735be698.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
SEISMIC CAPACITY OF RC HOLLOW BLOCK SLAB BUILDING AND RETROFITTING SYSTEMS
Waleed Abo El-Wafa
Mohamed
Retrofitting the seismically deficient structures before earthquakes provides a feasible approach toimprove their load carrying capacity and reducing their vulnerability. This study presents ananalytical assessment investigation on hollow block slab reinforced concrete building. The buildingis not designed according to seismic standards; moreover, hollow block slab systems may lack thesufficient lateral seismic resistance. Different retrofitting systems to enhance the seismic capacity ofthe target building are proposed and evaluated. These systems include strengthening the columnswith reinforced concrete jackets or using internal shear walls or introducing steel chevron bracing.The target building before and after retrofitting is analyzed either as bare frames or consideringmasonry infill walls with different parameters. The three dimensional nonlinear pushover analysisprocedures are used in evaluating the seismic performance of the original building and the retrofittedones. The demand response spectra proposed by the Egyptian Code of Loads, ECOL 201, 2012edition, for different seismic zones with different soil properties are utilized in the evaluation. Realseven earthquakes response spectra with maximum-scaled spectrum acceleration close to the onecalculated for Cairo city are also applied. It is found that the original target building, beforeretrofitting, fails to fulfill the demands of neither many of the ECOL response spectra nor many ofthe applied real earthquakes. All the proposed retrofitting systems succeed in highly enhancing theseismic capacity of the original building. Considering masonry infill walls in the analysis has acrucial role on the seismic performance of the original building, the retrofitting systems can, due tothe increase in the lateral strength, limit this effect.
Hollow block slab building
Masonry infill walls
Pushover analysis
Strength and stiffness
2014
05
01
629
651
https://jesaun.journals.ekb.eg/article_115015_882ef9125114e1ce9ef3fb47272dc31e.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
ROOF LATERAL DISPLACEMENT FOR GRAVITY LOAD DESIGNED RC FRAMES SUBJECTED TO EARTHQUAKES
Khairy H.
Abdelkareem
N.
AL-Mekhlafy
The roof lateral displacement for RC frames is very significant parameter in performance basedengineering and should be within acceptable limits as per the requirement of different performancelevels. Data obtained from the time history dynamic analysis for a series of gravity load designed(GLD) RC frame was used as input data in a statistical program called SPSS 16.0, and a statisticalanalysis was done and a power equations was proposed to estimate the roof lateral displacement forthe GLD RC frames. Three equations were proposed for estimating the roof lateral displacement.The first one is for the bare frame models, the second is for infilled frame models and the third is forinfilled frame with open ground story. The equations for estimating the roof lateral displacement forGLD frames with different type of infill (bare, infilled and open ground story models) are proved tobe acceptable accuracy and they can be used to estimate the roof lateral displacement for GLD RCframes if they meet the conditions set out.
gravity load designed
SPSS 16.0
frame models
2014
05
01
652
665
https://jesaun.journals.ekb.eg/article_115016_84e4c3b3516773636a1c7e2c5b35c26f.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
TRANSIENT STABILITY IMPROVEMENT OF MULTI-MACHINE POWER SYSTEM USING UPFC TUNED-BASED PHASE ANGLE PARTICLE SWARM OPTIMIZATION
Gaber
EL-Saady
A.
Ahmed
EL Noby
.
M. A.
Mohammed
Optimal computation of parameters and placement of UPFC based minimization of New VoltageStability Index (NVSI) are presented in this paper. The application of Unified Power FlowController (UPFC) to enhance transient stability of a multi-machine power system is listed. Asupplementary stabilizer based on UPFC (like power system stabilizer) is designed to reach thedefined purpose. Phase Angle Particle Swarm Algorithm (θ-PSO) is used as an optimizationmethod. Several nonlinear time-domain simulation tests visibly show UPFC capability in dampingof power system oscillations and consequently transient stability betterment. Comparisons basedsystem transient stability enhancement among different UPFC locations and parameters areintroduced. The effectiveness of the proposed method is analyzed with IEEE 14-bus and IEEE 30-bus test systems.
Flexible AC Transmission System (FACTS)
Unified power flow controller (UPFC)
Transient stability
New Voltage Stability Index (NVSI)
Phase Angle Particle Swarm Optimization (θ-PSO)
Lead-Lag Power System Stabilizer (PSS)
PI controllers
2014
05
01
722
745
https://jesaun.journals.ekb.eg/article_115017_bf0c4b4bfafcde80c0eb3bf477027ec5.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
COMPRESSED MEASUREMENTS BASED CYCLOSTATIONARY DETECTOR FOR WIDEBAND COGNITIVE RADIOS
Mohammed Y.
Abdelsadek
Mohammed
Farrag
Taha A.
Khalaf
Cyclostationary feature detection is one of the most powerful spectrum sensing techniquesused for cognitive radio (CR) systems. This is because of its robustness against noiseuncertainties. However, this technique needs high sampling rates, which is limited by thestate-of the-art analog to digital converters (ADCs), especially in wideband regime.Comressive sensing (CS) was used by many researchers for solving this problem viasub-Nyquist sampling rates. However CS solves the high sampling rate problem, but it doesnot reduce complexity considerably. This is because spectrum sensing is performed in threesteps: sensing compressed measurements, then reconstructing the Nyquist rate signal, andfinally performing cyclostationary detection (CD) on the reconstructed signal. In this paperwe suggest performing CD directly on the compressed measurements skipping thereconstruction step which is the most complex step in CS. This can be realized by designingthe sensing matrix with constraints different from those used in the conventional CS. Resultsshow that performance is improved relative to applying CD on the Nyquist rate signal. Thisis in addition to reduction in receiver complexity resulting from reducing sampling rates. Adetection probability of 78.7% can be achieved with only 7% of samples used by theconventional cyclostationary detection technique that achieves a detection probability of32.7%.
cognitive radio
spectrum sensing
Cyclostationary Detector
Compressive Sensing
2014
05
01
746
755
https://jesaun.journals.ekb.eg/article_115018_2e9f92997ef233e548f04acde0b3df58.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
THE EFFECT OF COLOR SPACE ON MEAN SHIFT OBJECT TRACKING: A COMPARATIVE STUDY
Ahmed Nabil
Mohamed
Mohamed Moness
Ali
The mean shift algorithm is a widely used tool for robust and real-time object tracking that can useany feature space such as the color space. Therefore, in this article, we have studied and analyzedthe various effects of using different color space configurations with the mean shift algorithm on thetracking process in surveillance videos. We have done so by investigating the potency of the grayspace and four other color spaces (RGB, HSV, YIQ, YCbCr [each color space was studied under allthe available seven configurations]). In the end, we have reached a conclusion that deciding whichcolor space (or which configuration of the color space channels) to be used not only can be a verycritical decision which may affect greatly the results of the tracking process, but also there is nocolor space configuration that can succeed all the time in all situations. Therefore, it is better toselect the appropriate color space configuration according to the situation at hand.
Tracking
Color Spaces
Mean Shift
2014
05
01
756
768
https://jesaun.journals.ekb.eg/article_115019_06b3df70957d3c3169c12e44e95e1822.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
ESTIMATION OF LIGHTNING STRIKING DISTANCE TO HORIZONTAL CONDUCTOR
Mohamed
Nayel
This paper attempts to investigate the horizontal conductor lightning striking distance estimation.An electromagnetic model was proposed to model a vertical downward lightning leader and aninfinite grounded horizontal conductor by using the charge simulation method (CSM) to calculatethe lateral striking distance. A formula between the lateral striking distance, the lightning current,and the horizontal conductor height was estimated. The proposed formula was compared withelectromagnetic model and previous formulas. By the use of a similar methodology, a horizontalconductor voltage coefficient had been proposed and estimated. The proposed voltage coefficientwas used to modify the electrogeometric model in order to study lightning striking rates of anunshielded horizontal conductor for different heights at either AC or DC voltages.
Electromagnetic theory
Electro-geometric model
horizontal conductor
lightning leader
striking distance
Charge simulation method
conductor voltage
2014
05
01
769
783
https://jesaun.journals.ekb.eg/article_115020_738e3bef9916c64dc3a9d28eda882bc8.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
THE EFFECT OF USING FALSE CEILING ON ROOF COOLING LOAD
ALI H.
Abdel Razek
Ibrahim S.
Taha
Mahmoud G.
Morsy
Ali K.
Abdel-Rahman
Using of false ceilings (FC) for decoration and covering different ducts in modern buildings isspreading so much nowadays. This paper tries to find a new employment and other benefits forusing false ceilings (FC).A one dimensional transient mathematical model has been established tostudy the effects of using false ceiling on reduction of heat gained from concrete roof of controlledtemperature space. The effect of using false ceiling (FC), with and without adding reflector sheet onits upper side facing to concrete roof on the room cooling load is studied by modeling and solvingthe transient heat transfer processes in the different components of the space. The results showedthat using of false ceiling only without reflector sheet reduces heatgain introduced to space through24 hours by 66.8%, while using of false ceiling with reflector sheet increases the reduction percentof heat gained from concrete roof to be 81.6% for the same period.
Concrete Roof
False Ceiling
Reflector Sheet
roof cooling load
2014
05
01
666
682
https://jesaun.journals.ekb.eg/article_115021_266b282362f737475810e5383cbe16e2.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
INVESTIGATION OF CAVITATION DAMAGE PROGRESS IN THE INCUBATION PERIOD USING STEPWISE EROSION AND IMAGE PROCESS TECHNIQUES
M.
Osman
S. M.
Ahmed
Cavitation damage process of stainless steel during the incubation period was detected andevaluated using stepwise erosion technique and image processing. The damage experiments wereconducted using the vibratory test rig. The scanning electron microscope images at differentlocations on eroded surface using stepwise technique were presented. In addition, the surfaceroughness was measured with the testing time. Discrete wavelet transforms and fractals had beenadopted to extract the relevant features. It was found that the feature parameters: Shannon entropy,energy loss, fractal dimension and intercept show a fairly linear increase with the testing time. Itwas also observed that the feature parameters have reasonable correlations with the roughnessparameters.
Cavitation erosion
electron microscopy
Surface analysis
stainless steel
2014
05
01
683
702
https://jesaun.journals.ekb.eg/article_115022_eb43f7727c78557fe3293529805f33b0.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
EXPERIMENTAL INVESTIGATION OF AN ADAPTIVE NEURO-FUZZY CONTROL SCHEME FOR INDUSTRIAL ROBOTS
Abdallah
Farrage
Abdel Badie
Sharkawy
Ahmed S.
Ali
M-Emad S.
Soliman
Hany A.
Mohamed
This paper presents the application of an adaptive fuzzy logic controller with feed-forwardcomponent (AFLCF) to the Selective Compliance Assembly Robot Arm (SCARA Robot). The feedforward torque component is computed on-line using an artificial neural network (ANN) which hasbeen trained off-line. This feed-forward component is designed to deliver the ideal torquecomponent to the robot derivers. The feedback fuzzy logic control (FLC) component is made tokeep the stability of the closed loop system. As the FLC is dependent in its rule base, here, acompact rule base is used. It consists of only four rules per each degree of freedom (DOF). The FLCensures closed loop stability in the sense of Lyapunov and is valid for second order nonlinearsystems. Furthermore, adaptability of the FLC has been achieved to enhance the trackingperformance. The theoretical background of this control algorithm has been published in[1].Using SCARA robot as the testing platform, here, experimental results are presented for thefollowing five controllers: the conventional PD controller, PD controller tuned by fuzzy system(PDT), the FLC, Adaptive FLC (AFLC), and finally the AFLCF. The controllers are testedexperimentally at the same initial conditions to make fair comparison between their performances.Results show that the investigated AFLCF has outperformed the other controllers.
PD Control
PD controller tuned by fuzzy system (PDT)
Fuzzy logic controller (FLC)
Adaptive Fuzzy Logic Controller (AFLC)
adaptive fuzzy controller with feed forward component (AFLCF)
Artificial Neural network (ANN)
2014
05
01
703
721
https://jesaun.journals.ekb.eg/article_115023_1eab909b545eee96ccc135463aa3dc13.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
AN EXPERIMENTAL STUDY ON THE AVAILABILITY OF SOLID WASTE OF MINES AND QUARRIES AS COARSE AGGREGATE IN CONCRETE MIXES
Ahmed Abdul Mageed
Ahmed
Khairy Hassan
Abdel kareem
Ahmed Mohamed
Altohamy
Sherein Ahmed Mohamed
Rizk
In Egypt, large quantities of coarse solid wastes are generated during the processing of phosphateores and quarrying operations of marble and granite rocks. These solid wastes are stored in pilesaround or near mine sites, which cause many environmental problems. Various solutions have beensought for this major environmental problem and the best solution found is recycling. Howeverthese wastes, because of their similarity to the natural aggregate, represent a potentially usefulsource of material for a variety of applications.The main purpose of this research is to investigate the possibility of utilizing over screen rejectgenerated during phosphate ore processing and rock fragments of quarrying marble and graniterocks in concrete production as full replacement of natural gravel in concrete mix. A number of testswere carried out on these wastes to determine their physical, mechanical and chemical properties,according to the ECP 203 of natural aggregate. So, concrete mixes using the above mentionedwastes as coarse aggregate were done, and then tests for fresh and hardened concrete were carriedout. The mean value of uniaxial compressive strength of standard concrete cubes after 28 days ofcuring was found to be in order of 193 Kg/cm2 for phosphate waste, 262 kg/cm2 for marble waste,and 272 kg/cm2 for granite waste, which approach the conventional concrete used in building. Theobtained results proved that these kinds of wastes can be used for concrete mix in civil construction.Admixtures may be used to improve the strength of the first one. The positive uses of these wastesare considered beneficial from the economic and environmental points of view.
Phosphate processing wastes
Marble aggregate
Granite aggregate
Aggregate for civil constructions
Environmental cleaning
Mechanical and chemical properties
2014
05
01
876
890
https://jesaun.journals.ekb.eg/article_115024_27d19f8ca123d259d98024a49d6be458.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
TOWARDS A METHODOLOGY TO EVALUTE PUBLIC BUILDINGS BY VALUE ENGINEERING
Eman Mohamed Eid
Attia
Adham Gmal Eldeen
Etman
Rasha Ahmed Reyad
Ibraheem
This paper introduces a Methodology based on Value Engineering to evaluate public buildings afteroccupancy. This Methodology contains three aspects, namely, Functional performance, quality andcost.This paper reviews some methodologies for the evaluation of administrative building by valueengineering and sustainability rather than Environmental and Energy aspects. In the economicalanalysis of the public building , is carried by the new proposed formula expressed by the following:Economical efficiency Index=1-[(final- initial) costs/ Initial cost]The functional performance is divided to three elements, namely, analysis of the site, Functions ofthe basic and complementary building elements.The quality of the building is expressed by the degree of satisfaction of the occupants and containsHumanitarian needs and functional needs .The third aspect of evaluation is the economical analysisof the building .Hundred points are assigned for each aspect .The Building can be classified to oneof these categories, according to the percentage points obtained by it : Very good 85% ,(70-85)%good , (50-70)%acceptable, less than 50 % not acceptable . This methodology is applied to thehospital and institute of liver , Monofia University. After evaluation, the building has obtained(64.47)% acceptable .This study revealed that this building did not apply Value engineering through any stage of itsconstruction.
Value Engineering Methodology
Public buildings
Coefficient of Economical efficiency
2014
05
01
784
797
https://jesaun.journals.ekb.eg/article_115025_7f2708381a4760949f351674ecb1fefc.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
ENVIRONMENTAL DESIGN IN NATURE COLONIES AND SHELTERS OF ANTS AS AN EXAMPLE
Yehia
Wazeri
Many animals and insects show great cleverness in building their nests and habitats, in a mannerwhich is taking into account environmental and climatic factors. Such as good ventilation and adjustthe temperature and humidity inside the shelter, besides durability of construction itself.The studies and researches conducted on the shelters of animals and insects design are few.Therefore, the objective of this study is to shed light on designing of colonies and nests of ants, tofind out how the ants build nests remain strong for a long time. Also, to know the methods thoseare used to ventilate and regulate temperatures within those nests.The study is divided into two main parts: The first, theoretical and analytical sheds light on the mostimportant results of previous studies performed on the nests of ants, which are digging beneath thesurface of the earth. The second is a field study of a termite valley near the equator, Uganda.
Environmental Design
colonies and nests of ants
Termites
Uganda
2014
05
01
798
815
https://jesaun.journals.ekb.eg/article_115026_454fc966c0e26b2790b9d8455a78d773.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
INTERACTIVE MOVEMENT IN KINETIC ARCHITECTURE
Youssef Osama
Elkhayat
In recent years, many interactive concepts have been invented. Some of these concepts have theability to adapt and interact with the surrounding environment and its variants which include; light,sound, wind, heat or with people. This adaptation and interaction is done by some sort oftransformation that does not require human assistance. Moreover, returning to their original statehappens without significant deformation at the end of the external influence.Discovery of such interactive concepts stimulated a number of architects to utilize these concepts inseveral architectural environmental applications such as; sun shading, sun breakers and windows, ina way which significantly makes use of the concept and technology of interactive movement inarchitecture. The paper attempts to review the literature and descriptively analyse interactiveapplications in kinetic architecture and study the role of these applications in the development ofthis trend in architectural design to be more effective and applicable in the future.
Interactive Movement
Kinetic architecture
2014
05
01
816
845
https://jesaun.journals.ekb.eg/article_115027_36d3f1fd7572b86c6b4a6f7c31c69cba.pdf
JES. Journal of Engineering Sciences
1687-0530
1687-0530
2014
42
No 3
DIALECTIC OF HIGH-RISE BUILDINGS IN THE WORLD AND IT'S ESPECIALLY IN JORDAN
Yahia
Alzoubi
This paper investigates 'The dialectic of High-Rise buildings in the world in general and in Jordan inparticular'. It concentrates on the identification of the different concepts of High-Rise buildings. Italso studies its chronological history through civilizations with emphasis on the post-Chicago fireera. Furthermore, the paper studies the expectation related to future architecture with respect to theextent to which society need it.The paper cosists of five sections; the first section is an introduction. The second section introducesthe concept of high-rise buildings from deferent viewpoin. The third section (i.e. main section)briefly studies the inception of High-Rise buildings in civilizations. It also studies the mostimportant events in the 19th century. The fourth section explains the necessary precautionarymeasures that make High-Rise buildings safe, and the reasons for resorting to it. The fifth sectiondiscusses the pros and cons of High-Rise buildings, and the different positions for and against it.The paper ends with suggestions, recommecdations and results.
2014
05
01
846
875
https://jesaun.journals.ekb.eg/article_115028_12178d6593d1ed234e2c3b4598f5bb8a.pdf