Workers recently finished the last piece of tunnel for Kuala Lumpur’s second metro line, capping a program where autonomous tunneling machines have been operating remotely since 2016. Getting to that point took a poke by a seasoned tunneling director and TBM manager who found an unlikely duo of young, computer savvy, code-writing engineers who brought steering, advancement, excavation, and slurry operations under one operating system.
{"title":"Underground and Out of Sight","authors":"J. Kosowatz","doi":"10.1115/1.2021-MAR1","DOIUrl":"https://doi.org/10.1115/1.2021-MAR1","url":null,"abstract":"\u0000 Workers recently finished the last piece of tunnel for Kuala Lumpur’s second metro line, capping a program where autonomous tunneling machines have been operating remotely since 2016. Getting to that point took a poke by a seasoned tunneling director and TBM manager who found an unlikely duo of young, computer savvy, code-writing engineers who brought steering, advancement, excavation, and slurry operations under one operating system.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2021-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76662603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
When the spread of the COVID-19 pandemic caused schools across the country to close their classrooms, colleges and universities shifted to online education. Just as many professional spaces had to adjust to working from home, so did students and professors. Many higher education institutions had to find novel solutions to tackle the challenge of hands-on education and rethink what the classroom could be in a virtual and digital environment.
{"title":"Education from a Distance","authors":"Carlos M. González","doi":"10.1115/1.2021-jan7","DOIUrl":"https://doi.org/10.1115/1.2021-jan7","url":null,"abstract":"When the spread of the COVID-19 pandemic caused schools across the country to close their classrooms, colleges and universities shifted to online education. Just as many professional spaces had to adjust to working from home, so did students and professors. Many higher education institutions had to find novel solutions to tackle the challenge of hands-on education and rethink what the classroom could be in a virtual and digital environment.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72521281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An engineer with more than 45 years’ experience on efficiency claims takes a look at whether electric vehicles are much more efficient than conventional cars powered by internal combustion engines. He found that EVs are marginally more efficient than the technology they are positioned to replace. A lot of the potential for improvement is, however, contingent on where the electricity comes from and how the vehicles are charged.
{"title":"Taking the Measure of Electric Vehicles","authors":"E. Michaelides","doi":"10.1115/1.2021-jan8","DOIUrl":"https://doi.org/10.1115/1.2021-jan8","url":null,"abstract":"An engineer with more than 45 years’ experience on efficiency claims takes a look at whether electric vehicles are much more efficient than conventional cars powered by internal combustion engines. He found that EVs are marginally more efficient than the technology they are positioned to replace. A lot of the potential for improvement is, however, contingent on where the electricity comes from and how the vehicles are charged.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79329279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
When the COVID-19 pandemic broke out in China in early 2020, the autonomous disinfecting robots from UVD Robots saw massive interest from companies looking to sanitize and sterilize their places of business.
{"title":"Cleaning With UV Light","authors":"Carlos M. González","doi":"10.1115/1.2021-jan2","DOIUrl":"https://doi.org/10.1115/1.2021-jan2","url":null,"abstract":"When the COVID-19 pandemic broke out in China in early 2020, the autonomous disinfecting robots from UVD Robots saw massive interest from companies looking to sanitize and sterilize their places of business.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80655647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To keep symptomatic workers from infecting entire businesses, employers are resorting to temperature screenings in the front lobby. Mechanical engineer Howard Horn realized it would be faster and safer for building owners to automate the process.
{"title":"Guarding the Gate","authors":"Jeffrey A. Winters","doi":"10.1115/1.2021-jan6","DOIUrl":"https://doi.org/10.1115/1.2021-jan6","url":null,"abstract":"\u0000 To keep symptomatic workers from infecting entire businesses, employers are resorting to temperature screenings in the front lobby. Mechanical engineer Howard Horn realized it would be faster and safer for building owners to automate the process.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72810899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The efficient natural gas Combined Cycle Power Plant (CCPP) has driven a substantial reduction in Greenhouse Gas (GHG) emissions, while gas turbine peaking plants also provide backup for variable renewable resources. As more wind and solar generation is added to grids around the world, there is a need for more flexible CCPPs with faster startup and ramping capability, storage of increasingly over-abundant renewable energy, and lower GHG emissions from dispatchable power plants. Novel integration of energy storage with the CCPP can meet these needs at lower cost than alternatives like batteries.
{"title":"Adding Energy Storage to the Combined Cycle","authors":"W. Conlon, Milton Venetos","doi":"10.1115/1.2021-jan10","DOIUrl":"https://doi.org/10.1115/1.2021-jan10","url":null,"abstract":"The efficient natural gas Combined Cycle Power Plant (CCPP) has driven a substantial reduction in Greenhouse Gas (GHG) emissions, while gas turbine peaking plants also provide backup for variable renewable resources. As more wind and solar generation is added to grids around the world, there is a need for more flexible CCPPs with faster startup and ramping capability, storage of increasingly over-abundant renewable energy, and lower GHG emissions from dispatchable power plants. Novel integration of energy storage with the CCPP can meet these needs at lower cost than alternatives like batteries.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72706035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The editors of Mechanical Engineering magazine recognize technologists who developed a robot that can sterilize hospital rooms, a filter that can kill microbes in HVAC systems, an autonomous droid that delivers food, a lobby kiosk that can check for masks and fevers, and an open-source design for a face shield that anyone can 3D print. These are just a few of the many ways engineers responded to the COVID-19 pandemic.
{"title":"Engineers in Action","authors":"Thomas Costabile","doi":"10.1115/1.2021-jan1","DOIUrl":"https://doi.org/10.1115/1.2021-jan1","url":null,"abstract":"The editors of Mechanical Engineering magazine recognize technologists who developed a robot that can sterilize hospital rooms, a filter that can kill microbes in HVAC systems, an autonomous droid that delivers food, a lobby kiosk that can check for masks and fevers, and an open-source design for a face shield that anyone can 3D print. These are just a few of the many ways engineers responded to the COVID-19 pandemic.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73987343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the last 10 years the growth of America’s natural gas fueled, gas turbine power plants have flourished in its lower 48 states. They are replacing older coal-fueled steam turbine power plants, ending a century’s-old dominance of King Coal, for the nation’s electricity production.
{"title":"Piped Gas Fuels GT Power Plant Growth","authors":"L. Langston","doi":"10.1115/1.2021-jan9","DOIUrl":"https://doi.org/10.1115/1.2021-jan9","url":null,"abstract":"In the last 10 years the growth of America’s natural gas fueled, gas turbine power plants have flourished in its lower 48 states. They are replacing older coal-fueled steam turbine power plants, ending a century’s-old dominance of King Coal, for the nation’s electricity production.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86368905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A new HVAC filter, developed through a collaboration of Houston-based medical real estate developer Medistar and researchers at the University of Houston and Texas A&M University, uses a heated filter made of nickel foam that traps and kills 99.8 percent of the virus.
{"title":"Filtering Out Microbes","authors":"J. Kosowatz","doi":"10.1115/1.2021-jan3","DOIUrl":"https://doi.org/10.1115/1.2021-jan3","url":null,"abstract":"A new HVAC filter, developed through a collaboration of Houston-based medical real estate developer Medistar and researchers at the University of Houston and Texas A&M University, uses a heated filter made of nickel foam that traps and kills 99.8 percent of the virus.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72915405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the spring, when the reality of the COVID-19 pandemic finally sank in, people realized that interactions as benign as accepting a delivered pizza could carry the risk of virus transmission. Enter the delivery robot.
{"title":"Bringing the Goods","authors":"Jeffrey A. Winters","doi":"10.1115/1.2021-jan4","DOIUrl":"https://doi.org/10.1115/1.2021-jan4","url":null,"abstract":"In the spring, when the reality of the COVID-19 pandemic finally sank in, people realized that interactions as benign as accepting a delivered pizza could carry the risk of virus transmission. Enter the delivery robot.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72450761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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