{"title":"Spare Parts","authors":"Kayt Sukel","doi":"10.1115/1.2023-jan2","DOIUrl":"https://doi.org/10.1115/1.2023-jan2","url":null,"abstract":"\u0000 Due to the remarkable advances in biomedical engineering, new technologies like brain-machine interfaces, robotics, tissue engineering, and more, artificial organs are being developed that can replace the function of natural ones. There will soon come a time when we can ask, how much of the human body can be replaced by medical devices?","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":"63 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80591118","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}
{"title":"Fly the Climate-Friendly Skies","authors":"M. Abrams","doi":"10.1115/1.2022-nov1","DOIUrl":"https://doi.org/10.1115/1.2022-nov1","url":null,"abstract":"\u0000 Eliminating the climate impact of long-distance airline flights will require cutting fossil carbon from the aviation energy supply. Startups and established companies are scrambling to develop new energy technologies that would allow airlines and their passengers to fly the globe without contributing to its warming. There is, however, no consensus on the best way this can be accomplished.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":"23 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81987324","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}
{"title":"Hot Pursuit","authors":"L. Langston","doi":"10.1115/1.2022-nov3","DOIUrl":"https://doi.org/10.1115/1.2022-nov3","url":null,"abstract":"\u0000 Fueling gas turbines with hydrogen was a path not taken by early innovators. And for good reasons: Hydrogen atoms are so reactive that very little molecular hydrogen is available. Hydrocarbon fuels, such as methane, kerosene, and gasoline, became the energy source of choice for the technology. But the need to reduce carbon emissions has revived interest in hydrogen fuel.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":"11 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88597837","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}
{"title":"New Horizons for Geothermal Energy","authors":"F. Wicks","doi":"10.1115/1.2022-sep3","DOIUrl":"https://doi.org/10.1115/1.2022-sep3","url":null,"abstract":"\u0000 The geothermal heat resource is not limited the way fuel or iron or other materials are. But the low efficiency of geothermal power systems is unsatisfying and contributes to often-poor economics. To improve efficiency, engineers could look for a different thermodynamic cycle in the power plant. And, the economics can be improved by developing a facility whereby geothermal heat and electricity is the by-product of a process to produce lithium.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":"43 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87258983","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}
{"title":"Supply Chain Kinks","authors":"J. Kosowatz","doi":"10.1115/1.2022-jul1","DOIUrl":"https://doi.org/10.1115/1.2022-jul1","url":null,"abstract":"\u0000 GM, Ford, and other automakers are chasing Tesla in the manufacture and marketing of electric vehicles. In turn this is sparking an upheaval the auto industry has not seen since Henry Ford’s Model T, which introduced manufacturing to the assembly line, and its effects are roiling the parts supply industry.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":"63 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80877246","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}
{"title":"The Case for Waste to Energy","authors":"M. Castaldi, J. Leblanc, A. Licata","doi":"10.1115/1.2022-jul2","DOIUrl":"https://doi.org/10.1115/1.2022-jul2","url":null,"abstract":"\u0000 There is a better way of handling MSW that is not or cannot be recycled: thermal conversion, also called waste to energy. These facilities feed waste into a combustion chamber with air and incinerate it. The heat released from combustion produces steam for use in a district heat network, or to generate electricity, or do both in combined heat and power systems. In addition to enabling the heat content of the MSW to be recovered, combustion reduces its final volume by more than 90 percent, thus decreasing the need for landfills.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":"1 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78051740","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}
{"title":"Silicon Continent","authors":"K. Chege","doi":"10.1115/1.2022-jul4","DOIUrl":"https://doi.org/10.1115/1.2022-jul4","url":null,"abstract":"\u0000 While agriculture and natural resources have been the main exports for Sub-Saharan Africa, investment in high tech and digital technologies is beginning to build. Across the continent, bets on high-tech manufacturing are being made. It remains to be seen if they will pay off.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":"10 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84371237","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}
{"title":"Made in New York","authors":"Lina Zeldovich","doi":"10.1115/1.2022-mar3","DOIUrl":"https://doi.org/10.1115/1.2022-mar3","url":null,"abstract":"\u0000 The eight digester towers at New York City's Newtown Creek Wastewater Treatment Plant seamlessly convert sewage into biogas and a dirt-like output, similar to how Mother Nature would do it. At 145 feet high and 80 feet in diameter, each egg holds about 3 million gallons of sludge, converting it into 2 million cubic feet of gas every day.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":"5 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79545728","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}
{"title":"Making the Split Decision","authors":"Chitra Sethi","doi":"10.1115/1.2022-jan4","DOIUrl":"https://doi.org/10.1115/1.2022-jan4","url":null,"abstract":"\u0000 Mid-careers engineers often reach a crossroad, needing to decide between continuing down the technical career pathway and pursuing a master’s in business administration, or MBA, and becoming a manager. What the path they choose will determine the rest of their career. What factors should they weigh?","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":"107 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77448219","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}
{"title":"Enduring Edge","authors":"Jeffrey A. Winters","doi":"10.1115/1.2022-jan3","DOIUrl":"https://doi.org/10.1115/1.2022-jan3","url":null,"abstract":"\u0000 The degree to which technical skills are needed for new graduates and early career engineers is hotly debated. By some standards, deep knowledge of digital engineering technologies has never been more important or so hard to come by. But the difference-makers, employers say, are abilities that might be thought of as “soft skills,” such as flexibility, leadership, innate curiosity, and a flair for innovation.","PeriodicalId":18406,"journal":{"name":"Mechanical Engineering","volume":"24 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87325876","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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