Development of Composites from Waste PET - Cotton Textiles

In this research, waste textile materials like polyethylene terephthalate (PET) and cotton were compression molded into composites. The main idea was to use waste textiles to develop composites like PET and cotton. PET acts as matrix and cotton as reinforcement because PET is thermoplastic whereas cotton is non thermoplastic. Approximately about 21 million tons of textile solid waste is being disposed into landfills annually, leading to vast environmental properties and waste of valuable raw materials. By using waste PET and cotton textiles there are technical as well as environmental viabilities. However, implementing them into fabricating composites is not widely conducted. Compression molding is a feasible approach to use waste PET and cotton textiles into fabricating composites that have good potential for industrial applications. In this research, investigating the effects of plasticizers and alkalis on decreasing the processing temperatures of composites was studied so that the cotton is protected during compression molding. In the following paper, it is shown how plasticizers can be effectively used to decrease the melting temperature of PET. The influences of chemicals on the melting temperature of PET and the mechanical properties of the composites are investigated. In my future research, the feasibility of compression molding PET and cotton fabrics into composites with other chemicals will be studied. More molecular characterizations of individual PET and cotton components plus static and dynamic mechanical characterizations of composites will be conducted. Advisor: Yiqi Yan

Development of Composites from Waste PET - Cotton Textiles

In this research, waste textile materials like polyethylene terephthalate (PET) and cotton were compression molded into composites. The main idea was to use waste textiles to develop composites like PET and cotton. PET acts as matrix and cotton as reinforcement because PET is thermoplastic whereas cotton is non thermoplastic. Approximately about 21 million tons of textile solid waste is being disposed into landfills annually, leading to vast environmental properties and waste of valuable raw materials. By using waste PET and cotton textiles there are technical as well as environmental viabilities. However, implementing them into fabricating composites is not widely conducted. Compression molding is a feasible approach to use waste PET and cotton textiles into fabricating composites that have good potential for industrial applications. In this research, investigating the effects of plasticizers and alkalis on decreasing the processing temperatures of composites was studied so that the cotton is protected during compression molding. In the following paper, it is shown how plasticizers can be effectively used to decrease the melting temperature of PET. The influences of chemicals on the melting temperature of PET and the mechanical properties of the composites are investigated. In my future research, the feasibility of compression molding PET and cotton fabrics into composites with other chemicals will be studied. More molecular characterizations of individual PET and cotton components plus static and dynamic mechanical characterizations of composites will be conducted. Advisor: Yiqi Yan

Development of Composites from Waste PET - Cotton Textiles

In this research, waste textile materials like polyethylene terephthalate (PET) and cotton were compression molded into composites. The main idea was to use waste textiles to develop composites like PET and cotton. PET acts as matrix and cotton as reinforcement because PET is thermoplastic whereas cotton is non thermoplastic. Approximately about 21 million tons of textile solid waste is being disposed into landfills annually, leading to vast environmental properties and waste of valuable raw materials. By using waste PET and cotton textiles there are technical as well as environmental viabilities. However, implementing them into fabricating composites is not widely conducted. Compression molding is a feasible approach to use waste PET and cotton textiles into fabricating composites that have good potential for industrial applications. In this research, investigating the effects of plasticizers and alkalis on decreasing the processing temperatures of composites was studied so that the cotton is protected during compression molding. In the following paper, it is shown how plasticizers can be effectively used to decrease the melting temperature of PET. The influences of chemicals on the melting temperature of PET and the mechanical properties of the composites are investigated. In my future research, the feasibility of compression molding PET and cotton fabrics into composites with other chemicals will be studied. More molecular characterizations of individual PET and cotton components plus static and dynamic mechanical characterizations of composites will be conducted. Advisor: Yiqi Yan

Trip Characteristics of Casino and Racino Visitors In A Midwestern State

Gaming is a revenue driver for many areas and can be an economic boost for businesses and tourism entities around gaming venues. This study seeks to provide a comprehensive overview of the characteristics profile and expenditures of casino and racino visitors in a Midwestern state as a valuable resource that could be used by those in tourism planning to better determine who is coming into their state for gaming purposes and how they might better attract and accommodate them. Suggestions will be made based on the findings to aid in determining effective marketing methods to attract visitors, as well as facility or program enhancements to increase visitor expenditures

Organizational-Level RFID Technology Adoption in the Hospitality Industry

The purpose of this study was to explore the influence of technological, organizational, and environmental factors on the hospitality operators\u27 adoption of radio frequency identification (RFID) technology. Based on a sample of 125 technology decision makers at major hospitality corporations in the US, the results of the study indicated that except stakeholder pressure, all of the technological, organizational, and environmental factors had significant impact on hospitality operators\u27 intention to adopt RFID technology. By identifying the factors affecting hospitality operators\u27 RFID technology adoption decisions, technology vendors could design appropriate marketing strategies to reach potential adopters and they could educate these adopters better on the benefits of RFID technologies in order to increase the usage of these technologies in the hospitality industry

Biomedical applications of three‐dimensional bioprinted craniofacial tissue engineering

Abstract Anatomical complications of the craniofacial regions often present considerable challenges to the surgical repair or replacement of the damaged tissues. Surgical repair has its own set of limitations, including scarcity of the donor tissues, immune rejection, use of immune suppressors followed by the surgery, and restriction in restoring the natural aesthetic appeal. Rapid advancement in the field of biomaterials, cell biology, and engineering has helped scientists to create cellularized skeletal muscle‐like structures. However, the existing method still has limitations in building large, highly vascular tissue with clinical application. With the advance in the three‐dimensional (3D) bioprinting technique, scientists and clinicians now can produce the functional implants of skeletal muscles and bones that are more patient‐specific with the perfect match to the architecture of their craniofacial defects. Craniofacial tissue regeneration using 3D bioprinting can manage and eliminate the restrictions of the surgical transplant from the donor site. The concept of creating the new functional tissue, exactly mimicking the anatomical and physiological function of the damaged tissue, looks highly attractive. This is crucial to reduce the donor site morbidity and retain the esthetics. 3D bioprinting can integrate all three essential components of tissue engineering, that is, rehabilitation, reconstruction, and regeneration of the lost craniofacial tissues. Such integration essentially helps to develop the patient‐specific treatment plans and damage site‐driven creation of the functional implants for the craniofacial defects. This article is the bird's eye view on the latest development and application of 3D bioprinting in the regeneration of the skeletal muscle tissues and their application in restoring the functional abilities of the damaged craniofacial tissue. We also discussed current challenges in craniofacial bone vascularization and gave our view on the future direction, including establishing the interactions between tissue‐engineered skeletal muscle and the peripheral nervous system

Preparation and Evaluation of Chewable Tablets of Syzygium cumini Seed Powder

Aim of this study is to develop chewable tablets of Syzygium cumini seed powder. It has been chosen to do so as there are no oral solid dosage forms of this seed powder developed so far. There are numerous health benefits and nutrient properties of this seed powder, thus it can be used as a nutraceutical. Phytochemical screening of the Syzygium cumini seed powder has been conducted and the various phyto constituents present were detected. Seven different formulations have been developed by direct compression method out of which five were optimized. All these formulations were developed with Syzygium cumini seed powder as the active ingredient and lactose, acacia, glucose, talc, magnesium stearate, hydroxy propyl methyl cellulose, sodium alginate, guar gum and stevia were used as excipients. Various evaluations tests were performed to check the stability of the chewable tablets. Fourier Transform Infrared Spectroscopy (FTIR) analysis was conducted to check the interactions among the seed powder and the excipients. Anti-bacterial activity of the chewable tablets was tested against three different species of bacteria (Escherichia coli and Bacillus subtilis) by agar diffusion method. It is concluded that the Syzygium cumini seed powder and the developed chewable tablets were active against Escherichia coli and Bacillus subtilis.     Keywords: Syzygium cumini, Chewable tablet, anti-bacterial activit

A Confirmatory Study of Relationships in Ayurveda: Deha Prakritis, Agnis, Koshtas, and their Association to Cardiovascular Risk Factors

Background and Objectives: Ayurvedic theory proposes a person’s mind-body type (Deha Prakriti) is related to the condition of their digestive system (Agni) and to the responsiveness of their alimentary canal (Koshta). However, these relationships have never been statistically verified. Evidence also suggests the condition of a person’s digestive system and gut responsiveness are related to cardiovascular risk factors, but the relationships between them, too, have also not been statistically tested. Methods: One hundred and sixty patients underwent pulse diagnosis for general health assessment, including measurements of weight, Body Mass Index (BMI), blood pressure, and diet. Results: Results suggest each Deha Prakriti was related to its respective Agni and Kostha. For example, a Vata-dominant Deha Prakriti was correlated to Vishamagni and to Krura Koshta. Results also indicate Deha Prakriti, Agni, and Koshta were generally associated to weight, BMI, and diet, but not to hypertension, a finding also advanced by Ayurvedic theory. Discussion: These data suggest for the first time that Ayurvedic assessment of mind-body type and gastrointestinal conditions are related to each other and somewhat to cardiovascular risk factors, and provide confirmatory insights into fundamental Ayurvedic principles, a topic yet to be empirically examined despite its importance for health