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Fuzzy Abel Grassmann Groupoids, Florentin Smarandache, Madad Khan, Tariq Aziz

Branch Mathematics and Statistics Faculty and Staff Publications

Usually the models of real world problems in almost all disciplines like engineering, medical sciences, mathematics, physics, computer science, management sciences, operations research and articial intelligence are mostly full of complexities and consist of several types of uncertainties while dealing them in several occasion. To overcome these di¢ culties of uncertainties, many theories have been developed such as rough sets theory, probability theory, fuzzy sets theory, theory of vague sets, theory of soft ideals and the theory of intuitionistic fuzzy sets, theory of neutrosophic sets, Dezert-Smarandache Theory (DSmT), etc. Zadeh introduced the degree of membership/truth (t) in 1965 and dened …

Theory Of Abel Grassmann's Groupoids, Florentin Smarandache, Madad Khan

Branch Mathematics and Statistics Faculty and Staff Publications

It is common knowledge that common models with their limited boundaries of truth and falsehood are not su¢ cient to detect the reality so there is a need to discover other systems which are able to address the daily life problems. In every branch of science problems arise which abound with uncertainties and impaction. Some of these problems are related to human life, some others are subjective while others are objective and classical methods are not su¢ cient to solve such problems because they can not handle various ambiguities involved. To overcome this problem, Zadeh [67] introduced the concept of …

Probleme De Geometrie Și Trigonometrie, Compilate Și Rezolvate, Florentin Smarandache

Branch Mathematics and Statistics Faculty and Staff Publications

No abstract provided.

Algebraic Problems And Exercises For High School, Florentin Smarandache, Ion Goian, Raisa Grigor, Vasila Marin

Branch Mathematics and Statistics Faculty and Staff Publications

In this book, you will find algebraic exercises and problems, grouped by chapters, intended for higher grades in high schools or middle schools of general education. Its purpose is to facilitate training in mathematics for students in all high school categories, but can be equally helpful in a standalone work. The book can also be used as an extracurricular source, as the reader shall find enclosed important theorems and formulas, standard definitions and notions that are not always included in school textbooks.

Α-Discounting Method For Multi-Criteria Decision Making (Α-D Mcdm), Florentin Smarandache

Branch Mathematics and Statistics Faculty and Staff Publications

In this book we introduce a new procedure called αDiscounting Method for Multi-Criteria Decision Making (α-D MCDM), which is as an alternative and extension of Saaty’s Analytical Hierarchy Process (AHP). It works for any number of preferences that can be transformed into a system of homogeneous linear equations. A degree of consistency (and implicitly a degree of inconsistency) of a decision-making problem are defined. α-D MCDM is afterwards generalized to a set of preferences that can be transformed into a system of linear and/or non-linear homogeneous and/or nonhomogeneous equations and/or inequalities. Many consistent, weak inconsistent, and strong inconsistent examples are …

255 Compiled And Solved Problems In Geometry And Trigonometry, Florentin Smarandache

Branch Mathematics and Statistics Faculty and Staff Publications

No abstract provided.

Readup Buildup. Thync - Instant Α-Readings, Florentin Smarandache

Branch Mathematics and Statistics Faculty and Staff Publications

No abstract provided.

Neutronic Analysis Of Light Water Small Modular Reactor With Flexible Fuel Configurations, Brendan Dsouza

Masters Theses

"The study was focused on the analysis of light water Small Modular Reactor (SMR) with flexible fuel configurations. The core design, based on the Westinghouse UO₂ SMR with less than 5% enrichment was developed using the Monte Carlo N-Particle (MCNP) code. Neutronics analyses of a reference core with UO₂ fuel was performed to characterize parameters such as the radial neutron flux profile, the maximum to average flux ratio, the reactivity coefficient and critical boron concentration at beginning of life; which confirmed good performance in comparison to a standard UO₂ based pressurized water reactor.

Using this uranium oxide …

Spatial And Temporal Modulation Of Heat Source Using Light Modulator For Advanced Thermography, Arvindvivek Ravichandran

Masters Theses

"Thermography is a Non-Destructive Testing (NDT) method that has found increasing use in industry and research. It has the advantages of being non-contact and be able to interrogate a large surface simultaneously. Active thermography using flash lamps as heat source has been demonstrated for identifying blind holes and delamination in composites. Despite these advancements, active thermographic approach fails to defects like cracks. Under uniform illumination heat flow is predominantly 1D and can easily circumvent a narrow feature. This can be overcome by using a focused light/laser source onto the surface to impose a 3D heat flux. The disadvantage is that …

Optimal Techno-Economic Sizing Of Wind/Solar/Battery Hybrid Microgrid System Using The Forever Power Method, Sami Hamed Alalwani

Masters Theses

"Advancement in power electronics, energy storage, control, and renewable energy sources has led to the use of integrated renewable energy sources in islanded microgrids (MG). Also, the uses of integrated renewable energy sources have become more technically applicable, more economically feasible, and more environmentally friendly than conventional sources. As a result, electrification of rural villages using renewable energy technologies has started to become widely adopted around the world. Since generating power from renewable energy sources is highly intermittent and difficult to predict, the use of proper energy storage technology is important to eliminate mismatches between the load demand and generation. …

Evaluation Of Nickel-Titanium Oxide-Niobium Pentoxide Metal Ceramic Composite As Interconnect For Solid Oxide Fuel Cell, Abhijith Budur

Masters Theses

"With increasing importance for clean energy, fuel cells have gained great significance in recent decades. Solid oxide fuel cells are easy to transport due to presence of solid electrolyte and also have requisite electrical properties,but have been obstructed by their limitation to be used at only temperatures greater than 600⁰C and less than 800⁰C. To construct a stack of cells, materials that are good electrical conductors and having necessary mechanical strengths at that temperatures are being considered as interconnects between the cells. Evaluation of Nickel-Titanium dioxide-Niobium pentoxide (NTN) as interconnect and comparison to Stainless Steel 441 alloy has been made …

Day Of The Week Effect In Returns And Volatility Of The S&P 500 Sector Indices, Juan Liu

Masters Theses

"Previous studies have shown that returns associated with the stock market or foreign exchange's futures show variations across the day of the week. On such study, that employs a modified GARCH model for estimation, shows that returns associated with the S&P 500 stock index is highest on Wednesday and lowest returns on Monday. The same study shows that volatility is highest on Fridays and lowest on Wednesdays. In this study we investigate if this day-of-the-week effect on returns and volatility is present in the different sectors that constitute the S&P 500 index. The data set used provides daily returns from …

The Development Of Near Field Probing Systems For Emc Near Field Visualization And Emi Source Localization, Hui He

Masters Theses

"The objectives of this research are to visualize the frequency dependent electromagnetic field distribution for electromagnetic compatibility (EMC) applications and the radiating source reconstruction on complex shaped electronic systems. This is achieved by combining near field probing with a system for automatically recording the probe position and orientation. Due to the complexity of the shape of the electronic systems of interest, and for utilizing the expertise of the user, the probe will be moved manually not robotically. Concurrently, the local near field will be recorded, associated with the location and displayed at near real time on the captured 3D geometry …

Developing A Novel Methodolgy And Testbed For Fatigue Analysis Of Metal Specimens, Sai Aravind Palepu

Masters Theses

"A prototype of fatigue testing machine was built to determine the fatigue strength of materials. Proposed testing prototype was displacement controlled magnetic type bend fatigue testing machine. Designed prototype was tuned to operate at or near resonance of the specimen in order to amplify excitation displacement. Low maintenance i.e. zero wear of the parts was achieved, there were no moving components in the prototype machine. Crucial components used to build were: DC power supply, solenoid, Arduino UNO, supports and laser displacement sensor. DC source used to pass current through solenoid producing magnetic field; mosfet and Arduino generated square waves of …

Game Of Bombs: President Barack Obama’S Nuclear Nonproliferation Regime, Jeffrey F. Addicott

Faculty Articles

One of President Barack Obama’s favorite solutions to reducing armed conflict in the world centers around his desire to rid the world of nuclear weapons. While this simplistic formula has certainly been voiced by other occupants of the oval office, the world is, and always has been, an extremely dangerous place, and the machinations of competing spheres of power will always exist in human history. Coupled with an aggressive Russia and China, the dangers associated with the new era of radical Islamic extremism rubricate the need to view the naiveté of President Obama’s vision of a planet without nuclear weapons …

Internprofessional Education, Patricia E. Roberts

Faculty Articles

As legal educators consider how to improve the outcomes of legal education, maximizing the knowledge, skills, and values taught during the law school experience, consideration should be given to increasing interprofessional learning opportunities in the curricula. As Best Practices for Legal Education suggested, the creative thinking necessary for effective problem-solving includes an understanding of interprofessional dimensions of practice, but interprofessional opportunities are still the exception rather than the norm in legal education. Interprofessional legal education intentionally asks law students to blend the knowledge, skills, and values of two or more professions in order to address complex legal problems. Placing students …

Is Felony Murder The New Depraved Heart Murder: Considering The Appropriate Punishment For Drunken Drivers Who Kill, Dora W. Klein

Faculty Articles

In recognition of the increasing use of felony-murder statutes to prosecute drunken drivers who kill, this Article considers various criticisms and defenses of the felony-murder rule as they apply specifically to felony DWI cases. Part II of this Article discusses several recent precedent setting cases in which drunken drivers who killed were prosecuted under felony murder statutes. Part III explores whether such prosecutions are proper, given the existence of special narrower vehicular manslaughter provisions that a legislature might have intended to be the sole means of prosecuting drunk drivers who kill. Part IV discusses three particular limiting doctrines-merger, inherent dangerousness, …

The Bitcoin Blockchain As Financial Market Infrastructure: A Consideration Of Operational Risk, Angela Walch

Faculty Articles

“Blockchain” is the word on the street these days, with every significant financial institution experimenting with this new technology. Many say that this remarkable innovation could radically transform our financial system, eliminating the costs and inefficiencies that plague our existing financial infrastructures. Venture capital investments are pouring into blockchain startups, which are scrambling to disrupt the “quadrillion” dollar markets represented by existing financial market infrastructures. A debate rages over whether public, “permissionless” blockchains (like Bitcoin’s) or private, “permissioned” blockchains are more desirable.

Amidst this flurry of innovation and investment, this paper inquires into the suitability of the Bitcoin blockchain to …

All Your Air Right Are Belong To Us, Chad J. Pomeroy

Faculty Articles

Privacy and property rights are tricky subjects for a variety of reasons. One reason is that they have a unique relationship with each other, and this Article focuses on one of those areas of intersection—that of air rights and invasion of privacy. This is a timely topic due to the advent of drones, and this Article will argue that drone surveillance constitutes common law trespass and that any statute or regulation that permits such activity is in derogation of common law and so should be subject to particularly careful thought and consideration.

This is not as straightforward a thesis as …

การประเมินรอยเท้าคาร์บอนขององค์กรและศักยภาพในการลดก๊าซเรือนกระจก : กรณีศึกษาอุตสาหกรรมเม็ดพลาสติก, ชมพูนุท รุ่งทอง

Chulalongkorn University Theses and Dissertations (Chula ETD)

งานวิจัยนี้มีวัตถุประสงค์เพื่อประเมินการปล่อยก๊าซเรือนกระจกของอุตสาหกรรมที่ทำการผลิตเม็ดพลาสติกในประเทศไทย ทั้ง 7 ผลิตภัณฑ์ ได้แก่ พอลิเอทิลีนความหนาแน่นสูง (high density polyethylene : HDPE) พอลิเอทิลีนความหนาแน่นต่ำ (low density polyethylene : LDPE) พอลิเอทิลีนความหนาแน่นต่ำเชิงเส้น (linear low density polyethylene : LLDPE) พอลิไวนิลคลอไรด์ (polyvinyl chloride : PVC) พอลิพรอพิลีน (polypropylene : PP) พอลิสไตรีน (polystyrene : PS) และพอลิเอทิลีนเทเรฟทาเลต (polyethylene terephthalate : PET) โดยใช้ข้อมูลในปี พ.ศ. 2556 ในการคำนวณหาปริมาณก๊าซเรือนกระจกในรูปแบบรอยเท้าคาร์บอนขององค์กร และอ้างอิงวิธีการคำนวณตามวิธีมาตรฐานของ ISO14064-1:2006 และองค์การบริหารจัดการก๊าซเรือนกระจก (องค์การมหาชน) โดยพิจารณาการปล่อยก๊าซเรือนกระจกจากขอบเขตที่ 1 การปล่อยก๊าซเรือนกระจกทางตรง ประกอบไปด้วย การใช้สารทำความเย็น การใช้เชื้อเพลิงในกระบวนการผลิตและยานพาหนะ และการรั่วไหลจากการเผาทิ้ง และขอบเขตที่ 2 การใช้ไฟฟ้าและไอน้ำเท่านั้น เพื่อนำไปสู่การระบุแหล่งปล่อยก๊าซเรือนกระจกที่สำคัญพร้อมทั้งสามารถนำข้อมูลในงานวิจัยนี้มาเป็นส่วนหนึ่งของการศึกษาแนวทางการลดก๊าซเรือนกระจกของอุตสาหกรรมปิโตรเคมีขั้นปลายกลุ่มพลาสติกได้ จากการศึกษาพบว่า ทั้ง 7 ผลิตภัณฑ์ มีการปล่อยก๊าซเรือนกระจกจากการใช้ไฟฟ้าและไอน้ำมากที่สุดโดยอยู่ในช่วงร้อยละ 39-99 ของปริมาณการปล่อยทั้งหมด ความเข้มก๊าซเรือนกระจกอยู่ในช่วง 0.153-0.473 tonCO2eq./ton product โดย LDPE มีความเข้มก๊าซเรือนกระจกสูงที่สุด ซึ่งมีค่าเท่ากับ 0.473 tonCO2eq./ton product และความเข้มพลังงานอยู่ในช่วง 1.238-3.508 GJ/ton product จากผลการคาดการณ์ปริมาณการปล่อยก๊าซเรือนกระจกในปี ค.ศ. 2013 ถึง 2050 ในลักษณะการดำเนินการปกติ (Business as usual) โดยการปล่อยก๊าซเรือนกระจกในปี ค.ศ. 2020 2030 และ 2050 มีค่าเท่ากับ 2,117, …

การใช้แบคทีเรียบนใบพืชสำหรับกำจัดฟอร์มาลดีไฮด์, จิรารัตน์ พินทอง

Chulalongkorn University Theses and Dissertations (Chula ETD)

ฟอร์มาลดีไฮด์เป็นสารอินทรีย์ระเหยง่ายที่ส่งผลกระทบต่อสุขภาพของมนุษย์ ในปัจจุบันการบำบัดฟอร์มาลดีไฮด์ด้วยพืชกำลังได้รับความสนใจ เพราะเป็นมิตรต่อสิ่งแวดล้อม และราคาถูก โดยใบพืชเป็นแหล่งที่อยู่อาศัยของแบคทีเรียหลากหลายชนิด ดังนั้นในงานวิจัยนี้จึงสนใจศึกษาประสิทธิภาพของแบคทีเรียบนใบพืชในการกำจัดฟอร์มาลดีไฮด์ โดยศึกษาใบพืชทั้งพืชคลุมดิน และไม้พุ่ม จากบริเวณรอบคณะวิทยาศาสตร์ จุฬาลงกรณ์มหาวิทยาลัย พบว่าใบพลูด่างมีจำนวนแบคทีเรียทั้งหมด และแบคทีเรียที่ใช้ฟอร์มาลดีไฮด์เป็นแหล่งคาร์บอนมากที่สุดถึง 7.99±0.2 และ 6.37±0.23 Log CFU/กรัมใบไม้ ตามลำดับ พบว่า Microbacterium paroxydans JP13 มีประสิทธิภาพสูงที่สุดในการกำจัดฟอร์มาลดีไฮด์ นอกจากนั้นศึกษาประสิทธิภาพต้นพลูด่างและแบคทีเรียบนใบในการกำจัดฟอร์มาลดีไฮด์ในอากาศ ที่ความเข้มข้นเริ่มต้น 0.04 ppmV ในแบบจำลองตู้กระจกขนาด 40×40×60 ลูกบาศก์เซนติเมตร ทำการทดลอง 4 ชุดการทดลอง โดยทั้ง 4 ชุดการทดลองจะเปรียบเทียบกับชุดควบคุมซึ่งเป็นตู้กระจกที่ไม่มีพืช ดังนี้ 1) ต้นพลูด่างตามธรรมชาติ 2) ต้นพลูด่างที่ผ่านการฆ่าเชื้อแบคทีเรียที่ผิวใบ 3) ต้นพลูด่างที่พ่นสารอาหารที่ผิวใบ และ 4) ต้นพลูด่างที่พ่นด้วยแบคทีเรีย M. paroxydans JP13 พบว่าสามารถกำจัดฟอร์มาลดีไฮด์ได้ถึง 87%, 79%, 94% และ 100% ตามลำดับ เมื่อระยะเวลาผ่านไป 96 ชั่วโมง แสดงให้เห็นว่าต้นพลูด่างสามารถกำจัดฟอร์มาลดีไฮด์ด้วยกลไกการดูดซับของใบ เมตาบอลิซึมของใบ และการย่อยสลายฟอร์มาลดีไฮด์ของจุลินทรีย์บนใบ อย่างไรก็ดีการพ่นแบคทีเรียย่อยสลายฟอร์มาลดีไฮด์ชนิด M. paroxydans JP13 ลงบนใบพลูด่าง ทำให้มีการกำจัดฟอร์มาลดีไฮด์สูงกว่าในชุดการทดลองอื่นๆ การจัดจำแนกชนิดของแบคทีเรียที่คัดแยกจากใบต้นพลูด่างหลังการบำบัด พบว่าแบคทีเรียเด่นที่พบอยู่ในจีนัส Microbacterium แสดงให้เห็นว่า M. paroxydans JP13 ที่เติมบนใบสามารถเจริญเติบโตได้ งานวิจัยนี้จึงเป็นงานวิจัยที่พบว่าการเติมแบคทีเรียบนใบสามารถเสริมประสิทธิภาพของพืชในการกำจัดฟอร์มาลดีไฮด์ ความรู้ที่ได้รับสามารถนำไปประยุกต์ใช้งานในการกำจัดฟอร์มาลดีไฮด์ในอากาศต่อไป

Social Determinants And Oral Health Related Behaviors Among Thai Adolescents During 2003 - 2013, Araya Tienkon

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: risk behaviors of chronic non-communicable diseases, i.e. unhealthy diet and tobacco use are related to oral health. Moreover, dental care utilization is one of the vital components for achieving optimal oral health. Objective: To describe the distributions of oral health related behaviors among Thai adolescents across the country, in addition to determining the association of social determinants and oral health related behaviors among Thai adolescents. Materials and methods: the data were taken from the nationally representative Health & Welfare Survey (HWS) conducted by National Statistical Office of Thailand in 2003, 2005, 2006, 2009, and 2013. The data of 37,293 …

Thermal Conductivity Enhancement Of Epoxy-Based Adhesive Via Incorporating Inorganic Fillers, Chutiphong Sae-Sue

Chulalongkorn University Theses and Dissertations (Chula ETD)

Owing to a poor thermal conductivity of epoxy resin, the requirement of high heat dissipation in electronic packaging is not overcome. In this research, aluminium oxide (Al2O3) and silicon nitride (Si3N4) filled epoxy-based underfill adhesive were prepared by varying filler loading in the range of 0-5% by volume. Additionally, the epoxy composites were also incorporated with silane-treated particles. For the silane surface treatment of filler particles, N-(2-aminoethyl)-3-(trimethoxysilyl) propylamine (AETMP) was used as coupling agent to achieve good dispersion of particles in the polymer matrix. The results showed that when filler loading was increased, thermal conductivity of composites tended to be …

Development Of Bacterial Cellulose Membrane For Separation Of Ethanol-Water Mixtures, Theerawat Suratago

Chulalongkorn University Theses and Dissertations (Chula ETD)

A bacterial cellulose (BC) hydrogel was modified via impregnation by diffusion of sodium alginate and cross-linking with CaCl2 solution. BC/alginate (BCA) membranes were configured, characterized, and used for pervaporation of mixtures of ethanol–water. The alginate molecules penetrated into the BC fibril network and filled the pores. The FTIR spectra indicated that there might have some interactions between the hydroxyl groups of the BC fibers and carboxyl groups of alginate molecules. The BCA membrane had a denser structure and better hydrophilicity than the unmodified BC membrane. The BET analysis results showed that the average pore size decreased with increasing alginate content …

Gravity And Magnetic Investigations Into Possible Economic Mineral Deposits Within The Northwest St. Francois Terrane, Southeastern Missouri, Brandon Todd Ives

Graduate Theses/Dissertations

The exposed Precambrian St. Francois Mountains in southeast Missouri are a well-studied terrane of rhyolites, granites, and basaltic dikes, but much of the buried basement lithology west of the exposed region is still poorly delineated. The western St. Francois is host to large hydrothermal Pb-Zn and Fe-oxide ore deposits, some of which were located with previous geophysical investigations. The economic ore deposits specifically in the Pea Ridge Mine in Washington County contain known economic minerals and rare earth element deposits. In order to further investigate the Precambrian basement lithologies and the possible locations of additional economic ore deposits, a gravity …

Characteristics And Accessibility Of Loaner Programs Used By Missouri String Teachers, Juliana Marie Georgiades

Graduate Theses/Dissertations

The purposes of my study were (a) to describe string instrument loaner programs and associated administrative practices in socioeconomically diverse schools and (b) to analyze the accessibility of string education with respect to school size and socioeconomic status. The research involved the responses to an electronic survey completed by 42 Missouri K-12 string teachers who taught at 119 schools spanning 20 school districts. Findings suggest that lower income schools were more likely to have students using school-owned instruments as their only instrument, more likely to not use loaner instruments that were shared between schools, and more likely to lack the …

Bodies Bending Boundaries: Religious, Spiritual, And Secular Identities Of Modern Postural Yoga In The Ozarks, Kimberley J. Pingatore

Graduate Theses/Dissertations

Modern postural yoga is an amalgamation of practices that continues to defy traditional explanatory models that understand religious, spiritual, and secular to be mutually exclusive categories. In this project, I conduct in-depth interviews with yoga instructors in the Ozarks. In these interviews, I asked my informants to explain how they understand religious, spiritual, and secular. I then asked if and how they would use those words to describe yoga. These interviews revealed that religious, spiritual, and secular are not mutually exclusive, but are instead related, blended, and connected, especially when used to describe yoga. These findings inform my proposed explanatory …

How To Attain Sustainable Education In Sierra Leone: A Policy Design For Sanda Tendaren Chiefdom, Ahmed Lamin Sheriff

Electronic Theses and Dissertations

Socioeconomic inequalities affect the access to affordable and sustainable education in Sierra Leone: Sanda Tendaren Chiefdom. Education is a crucial part of the chiefdom's development. It has a direct affect on the living standards of the citizens of the chiefdom and a subpar system can negatively impact Chiefdom's economic development and stunt societal participation in political discourse. If access to affordability and sustainability of education are addressed seriously, the short and long-term impact for Sanda Tendaren chiefdom will be tremendous and lasting. Chiefdom villagers will have access to improved school buildings closer to their homes and education will be affordable …

To Fidget Or Not To Fidget: The Effect Of Movement On Cognition, Kelsey Diane Grodner

Theses and Dissertations

Previous research suggests that there is controversy regarding the effects of fidgeting. On one hand, fidgeting has been associated with inattention. On the other hand, the act of suppressing movement may have extensive costs to cognitive abilities. Thus, allowing fidgeting might be beneficial for attention. However certain fidgeting behaviors, such as large body movements, might be disruptive in certain situations, like a classroom or an office meeting. Fidget toys have been developed that allow for smaller fidgeting movements that are non-disruptive. Most previous studies have been conducted in an elementary school classroom and have used primarily observational data. Here we …

Closing Time And Cheerleader Effects Are Moderated By Target Value, Jackie R. Mcdowell

Theses and Dissertations

Previous research on factors influencing evaluations of mate value has revealed seemingly contradictory results. Specifically, the Closing Time Effect predicts that individuals will be viewed as more attractive when there are fewer individuals to choose from, while the Cheerleader Effect predicts that individuals will be viewed as more attractive when they are in the presence of others. The current study evaluates the influence of baseline measures of attractiveness on each of these effects. Results indicate that low value individuals may be more subject to Closing Time Effects, while high value individuals benefit from the Cheerleader Effect. The influence of mating …