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Articles 38311 - 38340 of 38753
Full-Text Articles in Entire DC Network
Asking Questions In The Classroom: An Exploration Of Tools And Techniques Used In The Library Instruction Classroom, Sara Maurice Whitver, Leo S. Lo
Asking Questions In The Classroom: An Exploration Of Tools And Techniques Used In The Library Instruction Classroom, Sara Maurice Whitver, Leo S. Lo
Libraries Faculty & Staff Publications
This study explores the tools and techniques used within the library instruction classroom to facilitate a conversation about teaching practices. Researchers focused on the questioning methods employed by librarians, specifically the number of questions asked by librarians and students. This study was comprised of classroom observations of a team of librarians working towards standardized learning outcomes; members of the team had the freedom to independently develop lesson plans and choose teaching approaches for each class. Observations measured the frequency of questions asked of and answered by librarians and students in library instruction sessions via oral discussion, worksheets, and polling. Researchers …
Scientific Literacy Matters: Using Literature To Meet Next Generation Science Standards And 21st Century Skills, Cynthia Tomovic, Sueanne Mckinney, Clair Berube
Scientific Literacy Matters: Using Literature To Meet Next Generation Science Standards And 21st Century Skills, Cynthia Tomovic, Sueanne Mckinney, Clair Berube
STEMPS Faculty Publications
Scientific literacy matters. It matters because it is vitally important to the education and development of America’s children, tomorrow's workforce, and the keepers of our future. If the future of American individual decision making, engagement in civic and cultural affairs, and valuable contributions to economic development is to be protected, it is critical that American students become more scientifically literate than they are today. Today, most Americans, including students, are considered scientifically illiterate. Recognizing the need to develop and enhance scientific literacy (also known as science literacy), science educators have worked diligently at developing new science standards, new approaches to …
Thrombectomy 6 To 24 Hours After Stroke With A Mismatch Between Deficit And Infarct, Raul G. Nogueira, Ashutosh P. Jadhav, Diogo C. Haussen, Alain Bonafe, Ronald J. Budzik, Parita Bhuva, Dileep R. Yavagal, Christophe Cognard, Ameer E. Hassan, Wondwossen G. Tekle
Thrombectomy 6 To 24 Hours After Stroke With A Mismatch Between Deficit And Infarct, Raul G. Nogueira, Ashutosh P. Jadhav, Diogo C. Haussen, Alain Bonafe, Ronald J. Budzik, Parita Bhuva, Dileep R. Yavagal, Christophe Cognard, Ameer E. Hassan, Wondwossen G. Tekle
School of Medicine Publications
Background The effect of endovascular thrombectomy that is performed more than 6 hours after the onset of ischemic stroke is uncertain. Patients with a clinical deficit that is disproportionately severe relative to the infarct volume may benefit from late thrombectomy.
Methods We enrolled patients with occlusion of the intracranial internal carotid artery or proximal middle cerebral artery who had last been known to be well 6 to 24 hours earlier and who had a mismatch between the severity of the clinical deficit and the infarct volume, with mismatch criteria defined according to age (<80 years or ≥80 years). Patients were randomly assigned to thrombectomy plus standard care (the thrombectomy group) or to standard care alone (the control group). The coprimary end points were the mean score for disability on the utility-weighted modified Rankin scale (which ranges from 0 [death] to 10 [no symptoms or disability]) and the rate of functional independence (a score of 0, 1, or 2 on the modified Rankin scale, which ranges from 0 to 6, with higher scores indicating more severe disability) at 90 days.
Results A total of 206 patients …
80>Fish Assemblage Structure Indicates Limited Restoration Progress Over A Lustrum Of A Severely Degraded Estuary In Southern Tamaulipas, Mexico, Alejandro Fierro-Cabo, Carlos E. Cintra-Buenrostro
Fish Assemblage Structure Indicates Limited Restoration Progress Over A Lustrum Of A Severely Degraded Estuary In Southern Tamaulipas, Mexico, Alejandro Fierro-Cabo, Carlos E. Cintra-Buenrostro
School of Earth, Environmental, & Marine Sciences Faculty Publications
Today the biggest incentive to attempt the restoration and protection of estuarine systems is their widely recognized ecological and economic importance. In the reconstruction of an estuary where the original aquatic communities disappeared before the restoration interventions, the fish assemblage is an adequate source of indicators of initial recovery. Following substantial restoration efforts, this study reports on the biannual for a lustrum monitoring and assessment of a severely degraded estuary (Garrapatas) in terms of its fish assemblage using a reference estuary (Barberena) in Tamaulipas, Mexico. Twenty fishes were associated with the restoring and reference estuaries. Species composition (richness, abundance, dominance) …
Adult Qdts, Chinese, Marianne E. Weiss, Binghua Wang
Adult Qdts, Chinese, Marianne E. Weiss, Binghua Wang
Quality of Discharge Teaching Scale
The Readiness for Hospital Discharge Scale, Quality of Discharge Teaching Scale, and Post-Discharge Coping Difficulty Scale were developed by Dr. Marianne Weiss to measure nurse-sensitive discharge care processes and patient outcomes. Three versions of the scales were developed concurrently for different patient populations – Adult medical-surgical patients, Parents of hospitalized children, and Postpartum Patient mothers (see Weiss & Piacentine, 2006, Weiss et al., 2007, and Bobay et al., 2018 for description of the development and initial testing). Additional scales and information about translation rights are located at Marquette Nursing.
PERMISSION TO USE
The Readiness for Discharge Scale, Quality of Discharge …
Cmsi Archive Translation: Strategic Strongpoints Along The “Belt And Road” And Building Military Diplomacy, Liu Lin [刘琳}
Cmsi Archive Translation: Strategic Strongpoints Along The “Belt And Road” And Building Military Diplomacy, Liu Lin [刘琳}
CMSI Translations
This article examines the strategic rationale for China’s construction of overseas strongpoints in support of the Belt and Road Initiative, emphasizing the integration of economic, political, and military resources. It argues that strategic strongpoints—such as the naval logistics base in Djibouti—enhance China’s ability to safeguard overseas interests, secure trade and energy routes, and support non-combat operations like anti-piracy, disaster relief, and evacuations. Military diplomacy is highlighted as a critical tool for consolidating these strongpoints, fostering bilateral trust, and managing regional security perceptions without pursuing hegemony. The article underscores the importance of careful host-country selection, civil-military coordination, and sensitivity to reactions …
David A. Epting Papers - Accession 1439, David Andrew Epting Jr.
David A. Epting Papers - Accession 1439, David Andrew Epting Jr.
Manuscript Collection
The David A. Epting Papers consist of David Epting’s correspondence, lecture, and teaching materials, rough notes, books, photographs, newspaper clippings, and artifacts. Most of the material pertains to Epting’s career and experience in the United States Navy, the Naval Reserves, in several colleges and universities, and the Second World War. Most notably is Epting’s correspondence which includes not only letters from him to his family during WWII but also letters to him from his family. His letters give a good picture of a young naval officer’s experience in the war. The letters from his family to Epting give a very …
William E. Dobbins Scrapbook - Accession 1337, William E. Dobbins
William E. Dobbins Scrapbook - Accession 1337, William E. Dobbins
Manuscript Collection
The William E. Dobbins Scrapbook is a World War II (WWII) era scrapbook that includes newspaper clippings about WWII largely pertaining to the Tenth Army Corp and the soldiers who fell, advertisements for purchase of war bonds, and articles concerning the Rhode Island semi-pro baseball League which was formed around 1942 which Bill Dobbins had aided in and concerning football star Irving “Shine” Hall, Jr. a halfback for Brown University and the New York Giants and Philadelphia Eagles. Also, included are newspaper articles related to Staff Sergeant William E. Dobbins, V-Mail from friends and family during his service, and personal …
Hutchinson-Johnston Family Papers - Accession 1510, Hutchinson Family, Johnston Family, Hutchison Family
Hutchinson-Johnston Family Papers - Accession 1510, Hutchinson Family, Johnston Family, Hutchison Family
Manuscript Collection
The Hutchinson-Johnston Family Papers includes a family bible, a diary, military records, survey maps, titles of real estate, land deeds, wills and testaments, photographs (including prints, negatives, carte de visites, tintypes, and daguerreotypes) and scrapbooks, school records, church records, correspondences, court documents, and newspaper clippings regarding the Hutchinson (also spelled Hutchison) and Johnston family. Allied family names included in the collection include: Anderson; Belk; Ballantine; Caldwell; Campbell; Dick; Dunlap; Luckey;
Mary Schweitzer Papers - Accession 1490, Mary Schweitzer
Mary Schweitzer Papers - Accession 1490, Mary Schweitzer
Manuscript Collection
The Mary Schweitzer Papers consists of publications, a scrapbook, collections of professional papers, and an academic publication/thesis belonging to Dr. Mary Schweitzer, Winthrop Anthropology Professor. Dr. Schweitzer is a cultural anthropologist who came to Winthrop in 1978 and retired from fulltime teaching in 2000. She was also a visiting professor at the American University – Central Asia in Bishkek, Kyrgyzstan (2002-03 and 2004-05) and in the Aga Khan (Muslim-Ismaili) Humanities Project in Dushanbe, Tajikistan (2006). She has received Fulbright awards for travel, study and teaching in Colombia, South America (1984), India (1988), and Albania (2001) and traveled extensively in China, …
John Hamilton Miller Papers - Accession 1428, John Hamilton Miller, Miller Family
John Hamilton Miller Papers - Accession 1428, John Hamilton Miller, Miller Family
Manuscript Collection
The John Hamilton Miller Papers consist of genealogical materials and research pertaining to the Miller, Hamilton, Borders, Elder, Grier, Harris, Hawthorne, Henry, Kennedy, Meek, Torbit, and Witherspoon allied families conducted by John Hamilton Miller (1920-2018). The records consist of genealogical charts (1700s-2012), family histories, photographs, correspondence, notes, diaries, certificates, newspaper articles, and memorabilia.
The National Planning Framework 2040: Aspects On What It Takes To Sustain A Viable Rural Community, Brian Hughes
The National Planning Framework 2040: Aspects On What It Takes To Sustain A Viable Rural Community, Brian Hughes
Articles
No abstract provided.
Mary Mellichamp Stevens Collection - Accession 1503, Mary Mellichamp Stevens
Mary Mellichamp Stevens Collection - Accession 1503, Mary Mellichamp Stevens
Manuscript Collection
The Mary Mellichamp Stevens Collection consists of four volumes of the Tatler from 1937-1940 as well as the Winthrop Handbooks from 1937-38, 1938-39, and 1939-40. Also included are various items such as a program for freshman week, tips for Winthrop college life, and a schedule for recitations. These items belonged to Mary Mellichamp Stevens, Winthrop alumna of the class of 1940.
Current State Of The Art Historic Building Information Modelling, Conor Dore, Maurice Murphy
Current State Of The Art Historic Building Information Modelling, Conor Dore, Maurice Murphy
Conference papers
In an extensive review of existing literature a number of observations were made in relation to the current approaches for recording and modelling existing buildings and environments: Data collection and pre-processing techniques are becoming increasingly automated to allow for near real-time data capture and fast processing of this data for later modelling applications. Current BIM software is almost completely focused on new buildings and has very limited tools and pre-defined libraries for modelling existing and historic buildings. The development of reusable parametric library objects for existing and historic buildings supports modelling with high levels of detail while decreasing the modelling …
Accretion And Acrylics: Composition Portfolio With Commentary, Patrick Egan
Accretion And Acrylics: Composition Portfolio With Commentary, Patrick Egan
Doctoral
This portfolio consists of nine compositions and an accompanying commentary on each of the pieces. The earlier compositions represent the exploration of preoccupations with canon, counterpoint, and rhythmically-charged, pulsating mobiles. This led to the further research elements incorporating the development of rhythmic motifs and their proliferation, culminating in static sonic canvases, slowing the rate of harmonic change. Investigative research into the various gradations applied to amplitude levels, first explored in my electronic music and then applied in the form of dynamics in my acoustic writing, represents another highly-featured process in this thesis. The opening chapters chart the processes of the …
A Case Study Of The Cellists And Treatise Authors: Johann Georg Christoph Schetky (1737-1824), Joseph Reinagle (1752-1825) And John Gunn (C.1765-1823): The Development Of The Cello In Provincial Britain, Margaret Doris
Doctoral
This dissertation provides an investigation of British provincial cello playing in the lateeighteenth and early-nineteenth centuries through a comprehensive examination of the biographical histories and the pedagogical outputs of the cellists and cello treatise authors, Johann Georg Christoph Schetky (1737–1824), Joseph Reinagle (1752–1825) and John Gunn (c.1765–1823). Through re-evaluation and analysis of the biographical profiles of Schetky, Reinagle and Gunn, in combination with a contextual review of their cello treatises, a provincial trend in British cello treatise authorship has been revealed. Schetky was principal cellist with the Edinburgh Musical Society [EMS], whilst Reinagle was principal cellist of the Oxford Musical …
Equal Rights Amendment South Carolina Coalition Records - Accession 693, Equal Rights Amendment South Carolina Coalition
Equal Rights Amendment South Carolina Coalition Records - Accession 693, Equal Rights Amendment South Carolina Coalition
Manuscript Collection
The Equal Rights Amendment South Carolina Coalition Records consist of pamphlets, membership listings, newsletters, bulletins, interstate correspondence, legislation positions, polls, newspaper clippings, article reprints, general correspondence and various memorabilia to the attempt to obtain South Carolina ratification of the passage of Equal Rights Amendment. The Equal Rights Amendment (ERA) was a proposed amendment to the United States Constitution designed to guarantee equal rights for women.
Haasis Family Papers - Accession 234, Haasis Family, Julius Friedrich Haasis, Cuthbert Wead Haasis, Eleanor Wead Haasis
Haasis Family Papers - Accession 234, Haasis Family, Julius Friedrich Haasis, Cuthbert Wead Haasis, Eleanor Wead Haasis
Manuscript Collection
The Haasis Family Papers consist of family history data, correspondence, literary manuscripts, drawings, photographs, newspaper clippings, financial and legal papers, memorabilia, and other papers of the Haasis family of Perth Amboy, New Jersey, and Aiken, South Carolina. Includes club and organizational files for the American Association of University Women, American Rose Society, Smokey Mountains History Club, the Connecticut College Alumni Association, Aiken Naturalists Club, Edisto Beach Yacht Club, the Savannah River Valley Branch of the American Society of Civil Engineers, and the Rutgers Alumni Association. Subjects include gardening, gold mining, South America, girl scouting, engineering, travel, Europe, China, and India. …
Would The Republic Of Ireland Benefit From A Top Down Local Authority Lead Approach To Building Regulation Control And Is The Current System Unfit For Purpose In Respect Of Dwellings Where Bcar Does Not Apply Or Can Be Opted Out Of?, Seamus Harrington
Other Resources
This research is an exploratory study to ascertain if there is a requirement throughout the Republic of Ireland to introduce a top-down Local Authority lead approach to Building Regulation Control similar to that currently utilised throughout the United Kingdom and Northern Ireland.
The system of Building Regulation Control that is in operation throughout the United Kingdom and Northern Ireland places on a requirement for Building Regulation Permission as well as Planning Permission and requires inspection of 100% of projects by either Local Authority Building Control or Approved Inspectors.
This dissertation document also focuses on the dwelling types that Building Control …
The Effect Of Different Insertion Techniques On The Depth Of Cure And Vickers Surface Micro-Hardness Of Two Bulk-Fill Resin Composite Materials, Lamiaa Mahmoud Moharam, Ahmed Zohair El-Hoshy, Karim Abou-Elenein
The Effect Of Different Insertion Techniques On The Depth Of Cure And Vickers Surface Micro-Hardness Of Two Bulk-Fill Resin Composite Materials, Lamiaa Mahmoud Moharam, Ahmed Zohair El-Hoshy, Karim Abou-Elenein
Chemical and Biochemical Engineering Faculty Research & Creative Works
Background: The aim of this study was to evaluate the Vickers surface micro-hardness and the depth of cure of two bulk-fill resin composites and one incremental-fill resin composite. Material and Methods: Two Bulk-fill dental resin composites (X-tra Fil, Voco; Sonic-FillTM 2, Kerr Corporation) and an incremental-fill dental resin composite (Filtek™ Z250 XT, 3M ESPE) were used. Sixty cylindrical specimens of 4 mm thickness were prepared using split Teflon molds. Specimens were divided into six groups (n=10) according to the type of the material used and according to the insertion technique applied (bulk or incremental). Prepared specimens were stored dry in …
Evaluation Of Combined Low-Salinity Water And Microgel Treatments To Improve Oil Recovery Using Partial Fractured Carbonate Models, Ali K. Alhuraishawy, Baojun Bai
Evaluation Of Combined Low-Salinity Water And Microgel Treatments To Improve Oil Recovery Using Partial Fractured Carbonate Models, Ali K. Alhuraishawy, Baojun Bai
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Combining two methods in one process to enhance oil recovery represents a needed cost savings in the oil industry. Microgels are used as conformance control agents to improve oil sweep efficiency and control excess water production. Low-salinity waterflooding (LSWF) is used as a wettability alteration agent in carbonate reservoirs and improves displacement efficiency. This paper offers a comprehensive understanding of the combined technology through laboratory experiments. The focus of this study is to see how microgels and low water salinity perform in porous media by creating flow resistance to injected fluid thereby changing the wettability and enhancing the sweep and …
Ior Methods In Unconventional Reservoirs Of North America: Comprehensive Review, Dheiaa Alfarge, Mingzhen Wei, Baojun Bai
Ior Methods In Unconventional Reservoirs Of North America: Comprehensive Review, Dheiaa Alfarge, Mingzhen Wei, Baojun Bai
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Unconventional resources have played a significant role in changing oil industry plans recently. Shale formations in North America have huge oil in place, 900 billion barrels of recoverable oil in Bakken only. However, the predicted primary recovery is still low as less than 10%. Therefore, seeking for improved oil techniques to increase oil recovery in these complex plays is inevitable. In this paper, three stages of review have been combined to find out the applicability of the most feasible IOR methods in these unconventional reservoirs. Firstly, the most common fluid and rock properties of these reservoirs have been investigated and …
Well Integrity Assessment Of Monitoring Wells At An Active Co2-Eor Flood, Andrew Duguid, Boyun Guo, Runar Nygaard
Well Integrity Assessment Of Monitoring Wells At An Active Co2-Eor Flood, Andrew Duguid, Boyun Guo, Runar Nygaard
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Assessment of well integrity has become more important for CCS and CO2-EOR as it has become apparent that wells represent the most likely migration pathway for CO2 to leave a CCS storage unit or a CO2-EOR reservoir. Although wells represent a migration pathway, they are also the best vehicle for employing technology monitoring CO2 injection and storage. This contradiction of being a potential migration path and key monitoring technology leads to a need to understand how monitoring wells may be similar or different in comparison to other types of wells with respect to migration …
Selection Criteria For Miscible-Gases To Enhance Oil Recovery In Unconventional Reservoirs Of North America, Dheiaa Alfarge, Mingzhen Wei, Baojun Bai, Mortadha Alsaba
Selection Criteria For Miscible-Gases To Enhance Oil Recovery In Unconventional Reservoirs Of North America, Dheiaa Alfarge, Mingzhen Wei, Baojun Bai, Mortadha Alsaba
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Unconventional resources have played a significant role in changing oil industry plans recently. Shale formations in North America such as Bakken, Niobrara, and Eagle Ford have huge oil in place, 100-900 billion barrels of oil in Bakken only. However, the predicted primary recovery is still low as 5-10%. Therefore, seeking for techniques to enhance oil recovery in these complex plays is inevitable. In this paper, two different approaches have been integrated to investigate the feasibility of three different miscible gases which are CO2, lean gases, and rich gases. Firstly, numerical simulation methods of compositional models have been incorporated …
Wellbore Stability Evaluation For Mishrif Formation, Ethar H.K. Alkamil, Husam R. Abbood, Ralph E. Flori, Andreas Eckert
Wellbore Stability Evaluation For Mishrif Formation, Ethar H.K. Alkamil, Husam R. Abbood, Ralph E. Flori, Andreas Eckert
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
During drilling operations for the E oilfield in the Mishrif formation in southern Iraq, stuck pipe has been identified as a significant geomechanical problem for several wells. In this study, a 1-D mechanical earth model (MEM) of the Mishrif formation is compiled based on its state of stress and rock strength parameters and is utilized to assess the contribution of borehole collapse leading to the stuck pipe problems. The MEM model is based on the principal in situ stresses and their orientation obtained from wireline logs measurements, measuring while drilling (MWD), and leak off test (LOT). Rock strength properties are …
Effect Of Molecular-Diffusion Mechanisim On Co2 Huff-N-Puff Process In Shale-Oil Reservoirs, Dheiaa Alfarge, Mingzhen Wei, Baojun Bai, Abdullah Almansour
Effect Of Molecular-Diffusion Mechanisim On Co2 Huff-N-Puff Process In Shale-Oil Reservoirs, Dheiaa Alfarge, Mingzhen Wei, Baojun Bai, Abdullah Almansour
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Unconventional resources have played a significant role in changing oil industry plans recently. Shale formations in North America such as Bakken, Niobrara, and Eagle Ford have huge oil in place, 100-900 billion barrels of recoverable oil in Bakken only. However, the predicted primary recovery is still low as less than 10%. Therefore, seeking for techniques to increase oil recovery in these complex plays is inevitable. In this paper, three different approaches have been combined to investigate the effect of molecular-diffusion mechanism on CO2 huff-n-puff process in Bakken formation. Firstly, comprehensive review has been conducted on the reported experimental studies …
Optimizing Injector-Producer Spacing For Co2 Injection In Unconventional Reservoirs Of North America, Dheiaa Alfarge, Mingzhen Wei, Baojun Bai, Abdullah Almansour
Optimizing Injector-Producer Spacing For Co2 Injection In Unconventional Reservoirs Of North America, Dheiaa Alfarge, Mingzhen Wei, Baojun Bai, Abdullah Almansour
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Shale oil reservoirs such as Bakken, Niobrara, and Eagle Ford have become the main target for oil and gas investors as conventional formations started to deplete and diminish in number. These reservoirs have a huge oil potential; however, the predicted primary oil recovery is still low as average of 7.5 %. Carbon dioxide (CO2) flooding has been a controversial approach to increase oil recovery in these poor-quality formations. This study investigated the effect of injector-producer spacing, in range of 925-1664 ft, on CO2 performance in these plays by using numerical simulation methods. CO2 utilization value under …
Novel Environmentally Benign Hydrogel: Nano-Silica Hybrid Hydrolyzed Polyacrylamide/ Polyethyleneimine Gel System For Conformance Improvement In High Temperature High Salinity Reservoir, Liping Ma, Shitou Wang, Yifu Long, Changqian Zhu, Hongbin Yang, Tangying Yang, Xiaochun Liu, Xiaorong Li, Baojun Bai, Wanli Kang
Novel Environmentally Benign Hydrogel: Nano-Silica Hybrid Hydrolyzed Polyacrylamide/ Polyethyleneimine Gel System For Conformance Improvement In High Temperature High Salinity Reservoir, Liping Ma, Shitou Wang, Yifu Long, Changqian Zhu, Hongbin Yang, Tangying Yang, Xiaochun Liu, Xiaorong Li, Baojun Bai, Wanli Kang
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
In order to address the conformance problem in high temperature and high salinity/hardness reservoir, an environmentally benign in-situ gel was developed based on hydrolyzed polyacrylamide (HPAM) and polyethyleneimine (PEI). Moreover, silica nanoparticle (SNP) was embedded to improve the performance of HPAM/PEI gel. To achieve the optimum formulation of HPAM/PEI-SNP gel, a comprehensive investigation was first conducted with the respect of gelation time, gel strength, and thermal stability. In addition, the particle size of SNP was determined by Dynamic Light Scatter (DLS) and the microstructure of HPAM/ PEI-SNP gel was characterized via Scanning Electron Microscopy (SEM). The optimum formulation, containing the …
Underground Structures, Rock Structures And Rock Mechanics From Ancient Era To The Modern Age, Ebru Akiş, Özgür Satici
Underground Structures, Rock Structures And Rock Mechanics From Ancient Era To The Modern Age, Ebru Akiş, Özgür Satici
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Usage of underground space is an old habit for human beings since ancient era. Our ancestors have used caves as a shelter for protection from the wildlife and nature, and they excavated caves to extract valuable minerals. They also used them as sanctuaries, tombs or for storage of goods. In addition, they built tunnels to be used as assault systems or to underpass fortifications during ancient warfare. Later on, tunnels were driven to supply water to the towns or to protect the towns from floods. They also built them for communication purposes. Though not knowing the exact time when they …
Development Of Structural-Functional Integrated Energy Storage Concrete With Innovative Macro-Encapsulated Pcm By Hollow Steel Ball, Hongzhi Cui, Waiching Tang, Qinghua Qin, Feng Xing, Wenyu Liao, Haibo Wen
Development Of Structural-Functional Integrated Energy Storage Concrete With Innovative Macro-Encapsulated Pcm By Hollow Steel Ball, Hongzhi Cui, Waiching Tang, Qinghua Qin, Feng Xing, Wenyu Liao, Haibo Wen
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Phase change materials (PCMs) have great potential for applications in energy efficient buildings. In this study, an innovative method of macro-encapsulation of PCM using hollow steel balls (HSB) was developed and the thermal and mechanical performance of PCM-HSB concrete was examined. The macro-encapsulation system (PCM-HSB) was attached with a metal clamp (c) for better mechanical interlocking with the mortar matrix. The latent heat of PCM-HSB-c that can be acquired is approximately 153.1 J/g, which can be considered to rank highly among PCM composites. According to the self-designed thermal performance evaluation, the PCM–HSB-c concrete panel is capable of reducing and deferring …