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Full Issue, Colby College

Colby Magazine

Colby Magazine vol. 107, no.1 (Spring 2019): full issue

“Quietly Incomplete”: Academic Historians, Digital Archival Collections, And Historical Research In The Web Era, Donald Force, Bradley Wiles

Journal of Contemporary Archival Studies

Since the early 1990s, archives institutions largely have approached digital archival collections with an “if we build it, they will come” mentality. But the extent and motivations of use for traditional and emerging patron groups are constantly evolving, and the factors or conditions that characterize use vary wildly in the web environment. As part of a broader study investigating how academic historians utilize and interact with digital archival collections, this paper details the findings of a pilot project involving a citation analysis, survey, and semi-structured interviews with academic historians from a medium-sized Carnegie Research 1 university. This limited exploratory study …

Tungsten: The Strongest Natural Metal On Earth, Haley E. Holland, Razan Khadka, Lee Marble, Kaleb Tutor

ME 4133/6133 Mechanical Metallurgy

The overall objective of this project was to construct a process-structure-property-performance (PSPP) map for a chosen metallic material. The material chosen by the group is tungsten (W). Tungsten is a rare, naturally occurring element and is usually found in the form of ores. It is known predominantly for its ability to withstand extreme temperatures, as well as its high tensile strength. The PSPP map displays many specifications of tungsten in each of the four categories and further details regarding each specific linkage, or subcategory, within the map are written throughout the research paper.

Along with the four specific categories outlined …

Analysis Of Titanium Alloy Ti-6al-4v, Hunter C. Smith, Gordin Smith

ME 4133/6133 Mechanical Metallurgy

Titanium alloy Ti-6Al-4V was chosen for examination, more specifically, the Properties and Performance of the alloy. The students will share the responsibility of examining the attributes of the material. The team members participate evenly in performing research, producing calculations, and constructing the final report. Contained herein is the information gathered through research conducted thus far.

The performance of the material will be related to the processing methods of the material. This relationship forms the basis of cost analysis. The students will examine the atomic characteristics and crystalline structure to determine the effects of the alloyed materials on properties such as …

An Analysis Of The Effects Of Process, Structure, And Properties On The Performance Of The Ti6al4v Alloy, Brad Jay Sampson, Loubna Ifqir

ME 4133/6133 Mechanical Metallurgy

Ti6Al4V (pronounced Ti-64), is a titanium alloy used in a variety of engineering applications including the aerospace, automotive, and biomedical industries. Ti6Al4V is made up of a combined ɑ-β microstructure, which provides it with many valuable properties such as high strength, low weight, high melting point, corrosion resistance, and biocompatibility. [1] For years, casting and forging have been the traditional processes used for the manufacturing of Ti6Al4V components, but recent interest in the additive manufacturing of Ti6Al4V through the Electron Beam Melting (EBM), Selective Laser Melting (SLM), and Directed Energy Deposition (DED) methods has been gained. The goal of this …

Al 6061 Alloy, Will Mckelvey, Evan Robertson, Justin Yates

ME 4133/6133 Mechanical Metallurgy

We want to portray the Al 6061 manufacturing and machining processes and how these affect the mechanical properties of the material. We also want to portray the strength and weaknesses and the reasons why it is used in certain applications.

Duplex Stainless Steel 2205 In The Pulp And Paper Industry, Charlie S. Wilcher, Trevor Davus

ME 4133/6133 Mechanical Metallurgy

Duplex stainless steel’s durability, formability, and resistance to corrosion make it the primary steel option of the pulp and paper industry. The harsh environments found in certain aspects of this industry, such as in bleach plants, digesters, liquor vessels, and any piping where corrosive liquids may be passed, require the previously mentioned properties that duplex stainless steel 2205 offer. The structure and properties of duplex stainless steel, as well as the processes it undergoes, allow for it to withstand these environments. Research into the structure and properties of duplex stainless steel and the processes it undergoes will indicate how duplex …

Ar400 Wear Plates, Jase Tatum, Bryson Miller, John Howell, Aaron Alexander

ME 4133/6133 Mechanical Metallurgy

Wear resistance is an invaluable performance metric for most metallic components found in mechanical systems. Our research focused on AR400, a steel alloy known for its wear resistance capabilities, in an effort to determine what factors might be attributed to its performance in wear applications. After establishing the processing techniques and resulting material structures that give AR400 such an edge in extreme wear conditions, our goal is to determine indicators of wear resistance that can be used to distinguish excellent wear resistant alloys from average or subpar performers against wear.

A Look Into The Process, Structure, Properties, And Performance Of Inconel 690, Reed Mcneal, Patrick Camacho, Haley Petersen, Mary Watson

ME 4133/6133 Mechanical Metallurgy

Inconel 690 (Alloy 690) is a high-chromium nickel super alloy. This alloy is used in many ways, mostly in a setting where corrosion is a concern. The alloy is very resistant to corrosion in an aqueous media as well as a high temperature atmosphere. This report will identify the structure and properties of Inconel 690 to determine the reliability and durability in an extreme setting.

Construction Of A Pspp Map Of Stainless-Steel Alloy Fabricated By Additive Manufacturing, Ihab Moutawakil, Abdelmounem Boukraa

ME 4133/6133 Mechanical Metallurgy

A Processing-Structure-Properties-Performance (PSPP) map simply summarizes knowledge on the behavior of a given materials system. This is a helpful tool that may successfully serve as a standard means of communication on the physical and chemical mechanisms that regulate the performance of a materials system, as well as guidance on the sort of data necessary to correctly characterize that materials system as a whole. This article provides a literature review of how stainless-steel properties are affected by different treatment techniques in addition to a step-by-step methodology for creating a map for any materials system and then uses data regarding these methods …

Investigating Cobalt Chrome Alloy For Use In Biomedical Applications, Morgan Calhoun, Caitlin Cade

ME 4133/6133 Mechanical Metallurgy

Cobalt Chrome alloys, in particular cast Co-Cr ASTM-F75, are often used as the material for medical implants due to a combination of material properties: high strength, stiffness, temperature endurance, and wear / corrosion resistance. We aim to demonstrate and discuss what characteristics make it such a desirable material in the production of metallic biomedical implants

Design Of Process-Structure-Property-Performance Road Map Of Titanium Alloy Constructed Using Additive Manufacturing, Othmane Omalek, Anas Rochdi

ME 4133/6133 Mechanical Metallurgy

This article provides critical data concerning a system’s approach that incorporates processing, structure, property, and performance (PSPP) linkages applied on titanium materials. To acquire basic insights and knowledge of materials behavior, we need to build reasonable (PSPP) connections. This article will help gather data for any materials system to create the PSPP map and then uses those techniques to create a map for a Titanium made with additive manufacturing. In addition, it explains the current methods, techniques, and equipment used in a variety of structure treatment of titanium materials, as well as the processing concerns and precautions that apply. The …

Titanium Ti-6al-4v, James Aaras Ross Brundege

ME 4133/6133 Mechanical Metallurgy

Titanium alloys, such as Ti-6A1-4V, used as biomaterials possess great characteristics compared to other alloys such as stainless steel alloys. Characteristics such as biocompatibility, enhanced corrosion, strain, and fatigue resistance provide amazing benefits from these alloys. Providing an understanding of Ti used in biomedical applications and production can provide insight into its benefits and limitations as well as the areas of potential improvement for future study.

3xx Aluminum Alloys For Ice Implementation, Kyle A. Taylor, Eric Cleckner, Jeffery Garrett

ME 4133/6133 Mechanical Metallurgy

The material to be explored for the purpose of this project relates to the Aluminum alloys used in the majority of modern engine “heads” and a number of engine “blocks”. The Aluminum used for these engine applications vary slightly across different manufacturers in their processing, structure and ultimate properties, despite their nearly identical performance applications. Part of the interest in this particular subject is the slight variations across manufacturing that result in different performance. Regardless of idiosyncrasies, these Al alloys are expected to perform under varying temperatures, with the ability to elastically deform and return to their original shape. They …

Empirical Study Of The Awareness And Utilization Of Internet Search Engine Among Undergraduate Students Of Nigerian Universities For Effective Information Retrieval On The Web., Chidaka Okachukwu Nyemezu Dr., Esther Nwarubu Edeh Miss, Israel Oghale Edereka Dr, Njideka Rachael Ugwu Miss

Library Philosophy and Practice (e-journal)

The study examined the level of awareness and utilization of internet search engine among undergraduate students of Nigerian Universities for Effective Information Retrieval on the web. The study adopted descriptive survey research design. Undergraduate students of government owned Universities in Southeast, Nigeria made up the population of the study. 525 undergraduate students sampled for the study using multistage sampling technique. Structured Questionnaire was constructed by the researchers and used for the study. Data collected were analyzed using frequency count, percentage, mean and standard deviation. All computation of collected data was done with SPSS version 22. Real limit of number was …

School Library Service Challenges To Support Distance Learning In The Pandemic: Experiences From High School Libraries In Yogyakarta, Indonesia, Miftahunnisa’ Igiriza, Rahmat Fadhli, Zulham Adamy, Cecep Ibrahim, Mustika Diana

Library Philosophy and Practice (e-journal)

This research aims to identify the challenges and strategies of school libraries during pandemic to support distance learning. This research used qualitative methods with a case study approach conducted in three high school libraries in Bantul Regency, Special Region of Yogyakarta, Indonesia. The data collection techniques consist of in-depth interviews, observations, and document studies. The informant involved in the study was five people consisting of the head of the school and the librarian of the school. Data analysis techniques use stages of reduction, display, and verification. The study found that school libraries found three major challenges to services during pandemics. …

Role Of Librarians And Libraries In The Realization Of The United Nations Sustainable Development Goals: An Empirical Study, Emmanuel Chidiadi Onwubiko

Library Philosophy and Practice (e-journal)

This is an empirical study that investigated the role of librarians and libraries in the realization of the United Nations’ Sustainable Development Goals (SDG). The study was guided by four research objectives that spurred the formulation of four research questions. To realize the objectives of the study, descriptive survey research design was applied with a sampled population of 28 derived from 28 registered libraries and obtained through total enumerative sampling technique. The major instrument used in collecting data is an open-ended structured questionnaire while data collected were analyzed using thematic analysis based on grounded theory. The outcome of the study …

Ict Based Agricultural Knowledge Transfer Of Women Farmers: A Case Of Gender Responsiveness From A Developing Country Perspective, Susmita Das, Paritosh Mondal, Rajesh Kumar Das

Library Philosophy and Practice (e-journal)

Women are increasingly becoming an integral part of the rural economy. Feminization and empowerment in agriculture is taking place while outmigration of males in the rural Bangladesh is visible due to higher off farm income. The objective of this study is to determine the current state of the ICT-based agricultural knowledge transfer of female farmers in Bangladesh involved in agricultural operations. Data were collected through survey method using structured questionnaire from 140 female farmers involved in public ICT service centers of Bangladesh. The questionnaire was administrated face-to-face and collected data were analysed with SPSS version 23.0. The result from the …

A Scientometric Study Of Authorship And Collaborative Pattern Of Desidoc Journal Of Library & Information Technology (Djlit) During 2012-2020, Dillip Kumar Parida

Library Philosophy and Practice (e-journal)

This aims of the paper published in DESIDOC Journal of Library & Information Technology (DJLIT) interpretation of fertility over nine eras (2012-2020). The theme depicts the several bibliometric circumstances in the Journal DJLIT, which was published 531 papers throughout nine years over 2013 nos. of citations. As per the investigation, in 2012-2014 most prominent of the records was proclaimed with the highest no of citations with a CPP rate of 4.21 %. The potency of the authors of CAI explicates that a whole of 525 authors published 531 papers, with a CAI varies from 91.78 to 112.18. The level of …

Wi-Sun Stabilization For Distributed Automation Gateways By Dynamically Controlling Acceptable Children Numbers, Lele Zhang, Iris Dai, Xue Yuan, Tonglin Yuan

Defensive Publications Series

Resilient mesh products (based on, for example, the Wireless Smart Utility Network (Wi-SUN) communication standard) have been available for many years and are widely used within Advanced Metering Infrastructure (AMI) and Distributed Automation (DA) settings. A DA Gateway (which, for convenience, may be referred to herein as a ‘DAGW’) follows the AMI elements’ rules in a Wi-SUN network, but that is not highly efficient while forwarding a significant amount of the third-party traffic. The root cause of such inefficiency is that the child AMI elements are not aware of a change in the available resources in a DAGW. To address …

Ow-Detr: Open-World Detection Transformer, Akshita Gupta, Sanath Narayan, K.J. Joseph, Salman Khan, Fahad Shahbaz Khan, Mubarak Shah

Computer Vision Faculty Publications

Open-world object detection (OWOD) is a challenging computer vision problem, where the task is to detect a known set of object categories while simultaneously identifying unknown objects. Additionally, the model must incrementally learn new classes that become known in the next training episodes. Distinct from standard object detection, the OWOD setting poses significant challenges for generating quality candidate proposals on potentially unknown objects, separating the unknown objects from the background and detecting diverse unknown objects. Here, we introduce a novel end-to-end transformer-based framework, OW-DETR, for open-world object detection. The proposed OW-DETR comprises three dedicated components namely, attention-driven pseudo-labeling, novelty classification …

Personal-Activity Approach As The Basis Of The Method Of Teaching Foreign Languages, Gulsanam Abdullaevna Nematova

Central Asian Journal of Education

The personal-activity approach as the basis of the methodology of teaching foreign languages can be carried out using various forms and methods, have different prolongation, intensity, orientation. The pluralism of current methodological concepts is due to practical necessity: improving language and speech skills is a complex and lengthy process. However, none of the known methods can claim to be the best in terms of course preparation, so the search for new ways of working continues.

Family Connection During Covid Pandemic, Vanessa Andrade

Life During COVID: Preserving Personal Pandemic Stories

In this entry, the author describe changes in her family's communications that brought them closer together during the COVID-19 pandemic.

Life During A Global Pandemic, Roly

Life During COVID: Preserving Personal Pandemic Stories

The author describes the challenges he experienced during the COVID-19 pandemic including low motivation, concern for family, and added responsibilities.

The Pandemic Affected Everything, Alexa Martinez

Life During COVID: Preserving Personal Pandemic Stories

The author describes the many impacts of the COVID-19 pandemic. She describes growing closer to close connections, the challenges of online schooling, and being cautious about going out.

When The Pandemic Happened, Anonymous

Life During COVID: Preserving Personal Pandemic Stories

In this entry, the author describes the escalating mitigation measures to combat the COVID-19 pandemic. They also write about finding a job to help their family.

Rhizobium Symbiotic Capacity Shapes Root-Associated Microbiomes In Soybean, Yuanhui Lu, Bin Ma, Wenfeng Chen, Klaus Schlaeppi, Matthias Erb, Erinne Stirling, Lingfei Hu, Entao Wang, Yunzeng Zhang, Kankan Zhao, Zhijiang Lu, Shudi Ye, Jianming Xu

Environmental Science and Geology Faculty Research Publications

Root-microbiome interactions are of central importance for plant performance and yield. A distinctive feature of legumes is that they engage in symbiosis with N₂-fixing rhizobia. If and how the rhizobial symbiotic capacity modulates root-associated microbiomes are still not yet well understood. We determined root-associated microbiomes of soybean inoculated with wild type (WT) or a noeI mutant of Bradyrhizobium diazoefficiens USDA 110 by amplicon sequencing. UPLC-MS/MS was used to analyze root exudates. The noeI gene is responsible for fucose-methylation of Nod factor secreted by USDA 110 WT strain. Soybean roots inoculated with the noeI mutant showed a significant decrease …

Gregory Of Nazianzus And Scripture Engagement, Sam Wolowski, Hank Voss

Presentations

No abstract provided.

Fifty Influential English Spiritual Classics, Jayden Wilhelm, Hank Voss

Presentations

No abstract provided.

Introduction To Early Intervention, Joanna Burkhardt

Library Impact Statements

No abstract provided.