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Home > Adaptive Soft Computing Strategies for Abs Equipped Full-Car Active Suspension System With Seated-Passengers Biodynamic Virbrations Damping Control

Adaptive Soft Computing Strategies for Abs Equipped Full-Car Active Suspension System With Seated-Passengers Biodynamic Virbrations Damping Control

Thesis Info

Access Option

External Link

Author

Riaz, Shah

Program

PhD

Institute

COMSATS University Islamabad

City

Islamabad

Province

Islamabad.

Country

Pakistan

Thesis Completing Year

2018

Thesis Completion Status

Completed

Subject

Electrical Engineering

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/11170/1/Shah%20Riaz_EE_2018_Comsats_PRR.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727694120

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Intheexistinghighlymechanizedandtechnologicallyadvancedsociety,thevehicleprovides a key means of communication. Vehicle ride is influenced by road surface roughness. Somedoseofunpleasantwholebodyvibration(WBV)transmittedintothehuman organs causes fatigue and discomfort. Low frequency WBV is injurious and prolonged exposures result in multiple health problems. Increase in vibration creates more health hazards thus reduces human performance. A score of experimental and analytical studiesonseated-driversexposuretolow-frequencyWBVhavedemonstratedintheexisting literature. However,thepublishedliteraturelacksintegratedbiodynamicmodeling. Verification of the models against various external road excitation profiles. And the use of advanced intelligent control strategies for vibration damping and the biodynamic response analysis. Today,theautomobilemanufacturersareconfrontedwithconflictingchallenges,atradeoff between ride quality, vehicle safety, stability, rattle space and wheels deflection limits. WBVdamping,therefore,hasattractedalotofinterestintherecentyears. Anumber of suspension models and control techniques are developed and implemented and few are still under consideration. The work presented in this thesis includes mathematical modeling of the nonlinear fullcar active suspension system with driver and passenger lumped seat model along with anti-lockbrakingsystem(ABS).Themodelingisextendedtovehicle-driverbiodynamic, vehicle-pregnant subject biodynamic and vehicle-driver-pregnant subject biodynamic with ABS and cornering models. These models incorporate all forms of the system motions and nonlinearities. An advanced adaptive NeuroFuzzy control is proposed and developed for vibrations damping and ride comfort improvement. An adaptive recurrent Fuzzy wavelet neural network(ARFWNN)controlalgorithmisalsoproposedtofurtherenhancetheridecomfort of the vehicle occupants.
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مسجد سلطان حسن اور رفاعی مسجد

مسجد سلطان حسن اور رفاعی مسجد

قلعے کے دائیں طرف سلطان حسن اور بائیں جانب رفاعی مسجد کی بلند و بالا عمارات دامنِ دل کھینچتی ہیں ۔ان دونوں مساجد کے درمیان ایک کشادہ شاہرہ ہے جوان مساجد کے آخر میں ایک وسیع و عریض باغیچے میں اختتام پذیر ہوتی ہے ۔راستے کے دو نوں جانب دو فٹ چوڑی اور اتنی ہی اونچی دیوار ہے جس نے راستے کی حنا بندی کی ہوئی ہے ۔دکتورہ بسنت نے اپنے پرس سے ایک چادر نکالی اور اس دیوار پر بچھا دی ۔اس کے بعد انھوں نے ڈبل روٹی ، کھیرے ،پنیر اور جیم کی ایک ڈلی چادر کے اوپر چن دی ۔پرس کے اندرونی جیب سے چھری نکالی ڈبل روٹی کو درمیان سے کاٹا اس کے اندر کھیرے اور پنیر کو جیم لگا کر رکھ دیا اور ہمارے سامنے پیش کر دیا ۔دکتورہ بسنت کی اس پرخلوص دعوتِ شیراز پر کون نہ مرتا۔

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Metaphors of Wine, Cup and Tavern in Poetry of Rumi and Hafiz

Poetry is one of the most prominent spiritual genres of mystic literature. Most of the mystics have expressed their thoughts in poetry. Mystic poetry is replete with metaphors of “wine”, “cup”, “tavern” and “wine-bearer” although, in Islam, the use of wine is strictly prohibited. However, the mystic poets make repeated use of such metaphors. This paper aims to compare the use of the metaphor of wine, cup, and tavern in the poetry of Rumi and Hafiz. Further, it spotlights the hidden meaning of mystical metaphors to make it expressible. The current research is based on Ricoeur’s hermeneutic model of understanding text which Ricoeur calls the Hermeneutic Arc. This study concludes that the cornerstone ideology beyond the use of metaphors is to awaken the sleeping souls, the negation of material pursuit, and realization of spiritual truth---Divine love and unity with God. Hafiz focuses on freedom, an eternity of soul, joy, and immortality; further. While Rumi talks about enlightenment of soul, union with Beloved and strong faith. Rumi’s use of language, imagery, and ideas are more powerful than Hafiz.

Efficacy Studies of Zinc Fortified Edible Coated Apricots

In present investigation, apricots from locally grown ‘Sufeda’ variety were treated with edible coatings; chitosan and alginate @ 1 and 2% levels along with zinc salts fortification i.e. zinc sulfate and zinc chloride @ 30 and 50 ppm concentration. The compositional analysis showed that apricot is a good source of protein, fiber, calcium and potassium. The zinc fortified chitosan coated apricots showed better control over weight & moisture loss, TSS contents, pH & acidity, organic acids and sugars as compared to alginate based coatings. Similarly, chitosan coatings were efficient in the distribution and adsorption of zinc to the apricot surface as contrast to alginate ones. The edible coated zinc fortified apricots were affected significantly during storage as exhibited by their physico-chemical analyses. The results depicted that the maximum zinc contents of fortified coated apricot was noticed in T12 (2% chitosan containing with 50 ppm ZnSO4) 4.83±0.24mg/100g followed by T16 (2% chitosan containing with 50 ppm ZnCl2) 4.82±0.21mg/100g, T4 (2% alginate containing with 50 ppm ZnSO4) 4.78±0.23mg/100g and T8 (2% alginate containing with 50 ppm ZnCl2) 4.77±0.12mg/100g, respectively as contrast to T0 (control) 0.26±0.02mg/100g. The sensory response of the fortified edible coated apricots was remained within range during storage. Afterwards, efficacy study was carried out in rabbits through two consecutive trials I & II for the validity of results. On the basis of in vitro analysis, HPLC characterization (citric & ascorbic acid and sugars) and zinc contents in edible coated zinc fortified apricots, four best treatments two from each coatings having different zinc salts T4, T8, T12 and T16 alongside control (unfortified apricots) were selected for the bio-evaluation trial. The consumption of zinc fortified chitosan and alginate coated apricots imparted substantial effect on feed & drink intake and body & organs weights during entire study. Likewise, serum and organs zinc contents of experimental rabbits were significantly improved by the provision of zinc fortified apricots with maximum serum zinc was observed in G3 (apricot containing 2% chitosan coating with 50 ppm ZnSO4), G1 (apricot containing 2% alginate coating with 50 ppm ZnSO4) G4 (apricot containing 2% chitosan coating with 50 ppm ZnCl2) and G2 (apricot containing 2% alginate coating with 50 ppm ZnCl2) as 89.71±2.26, 87.43±2.14, 83.51±2.41 and 81.49±2.46μg/dL, respectively as comparison to G0 as 72.56±2.85μg/dL. The percent increase in serum zinc was 24.63, 20.50, 15.09 and 12.31% in G3, G1, G4 and G2, respectively as comparison to G0. Similarly, liver zinc was noticed as 23.97±1.41, 23.71±1.15, 23.53±1.28 and 23.36±1.45μg/g in G3, G1, G4 and G2 as contrast to G0 by 22.42±1.36μg/g. Whilst in heart, maximum zinc was 17.59±0.55, 17.46±0.54, 17.22±0.42 and 17.18±0.46μg/g in G3, G1, G4 and G2 whereas, minimum in G0 as 17.11±0.50μg/g. Whereas in kidney, zinc contents in G3, G1, G4 and G2 were noticed as 25.18±1.23, 24.97±1.56, 24.65±1.11 and 24.40±1.30μg/g in association to G0 23.53±1.47μg/g. Results showed that percent increase in liver, heart and kidney zinc were 6.91, 2.84, 7.03 (G3); 5.72, 2.08, 6.12 (G1); 4.95, 0.66, 4.76 (G4) and 4.19, 0.43, 3.68% (G2), respectively compared to G0. The attenuation in serum glucose of rabbits is an indicator for the positive impact of zinc salts fortification on this trait. The lowest serum glucose was 111.79±4.48mg/dL in G3 nevertheless, maximum serum insulin 9.38±0.51μU/mL was observed in the same group. Similarly, the values for liver and kidney functions tests were within the normal range showing the safety of zinc fortified edible coated apricots. The hematological traits of rabbit’s blood also demonstrated normal values for red & white blood cell indices. From instant exploration, it is deduced that zinc fortification through edible coating is a pragmatic choice to overcome hidden hunger with special reference to zinc.