Cast cellular metals with regular and irregular structures

An appropriate way to reduce the weight of manufactured parts without adversely affecting their strength is to use porous metallic materials with different internal arrangements of the intentionally created cavities. Porous metallic materials can be made from liquid metal, from powdered metal, metal vapours, or from metal ions. The aim of this research was to verify the possibilities of producing metallic foams by conventional foundry processes, to study the process conditions as well as the physical and mechanical properties of the metal foams produced. The experiments demonstrated the possibility of manufacturing castings with both a regular cellular structure and a solid skin in a single casting operation using different kinds of preform made from commonly used resin-bonded core mixtures. From the perspective of the need to destroy the preforms after the metal’s solidification it seems a very interesting prospect to produce preforms from different salts.Web of Science48217917

Wisconsin Jobs and Low-Income Working Families

Examines data on Wisconsin's low-income working families, including health insurance coverage and portion of income spent on housing. Presents a policy agenda to provide more and better living-wage jobs, skills training, and health- and childcare support

2012-2022 Iowa Career, Industry, & Population Report, October 2014

Employment data derived from the 2012-2022 Iowa Industry and Occupational Projections produced by the Labor Market and Workforce Information Division of Iowa Workforce Development (IWD). Population figures are from the 2010 U.S. Census with additional analysis performed by the State Data Center of the State Library of Iowa and IWD. MSAs refer to Metropolitan Statistical Area

Small cities face greater impact from automation

The city has proven to be the most successful form of human agglomeration and provides wide employment opportunities for its dwellers. As advances in robotics and artificial intelligence revive concerns about the impact of automation on jobs, a question looms: How will automation affect employment in cities? Here, we provide a comparative picture of the impact of automation across U.S. urban areas. Small cities will undertake greater adjustments, such as worker displacement and job content substitutions. We demonstrate that large cities exhibit increased occupational and skill specialization due to increased abundance of managerial and technical professions. These occupations are not easily automatable, and, thus, reduce the potential impact of automation in large cities. Our results pass several robustness checks including potential errors in the estimation of occupational automation and sub-sampling of occupations. Our study provides the first empirical law connecting two societal forces: urban agglomeration and automation's impact on employment

Problems involved in establishing a new foundry in the New England area

Thesis (B.S.) Massachusetts Institute of Technology. Dept. of Business and Engineering Administration, 1952.MIT copy bound with: Development of a cost control system for a textile specialty plant / William Edwin Moss. 1952.Bibliography: leaves 106-107.by George M. Shields, Jr., Edward W. Neumann, Jr.B.S

How Many U.S. Jobs Might Be Offshorable?

Using detailed information on the nature of work done in over 800 BLS occupational codes, this paper ranks those occupations according to how easy/hard it is to offshore the work— either physically or electronically. Using that ranking, I estimate that somewhere between 22% and 29% of all U.S. jobs are or will be potentially offshorable within a decade or two. (I make no estimate of how many jobs will actually be offshored.) Since my rankings are subjective, two alternatives are presented—one is entirely objective, the other is an independent subjective ranking. It is found that there is little or no correlation between an occupation’s “offshorability” and the skill level of its workers (as measured either by educational attainment or wages). However, it appears that, controlling for education, the most highly offshorable occupations were already paying significantly lower wages in 2004.

Making Sense of Email Addresses on Drives

Drives found during investigations often have useful information in the form of email addresses, which can be acquired by search in the raw drive data independent of the file system. Using these data, we can build a picture of the social networks in which a drive owner participated, even perhaps better than investigating their online profiles maintained by social-networking services, because drives contain much data that users have not approved for public display. However, many addresses found on drives are not forensically interesting, such as sales and support links. We developed a program to filter these out using a Naïve Bayes classifier and eliminated 73.3% of the addresses from a representative corpus. We show that the byte-offset proximity of the remaining addresses found on a drive, their word similarity, and their number of co-occurrences over a corpus are good measures of association of addresses, and we built graphs using this data of the interconnections both between addresses and between drives. Results provided several new insights into our test data

Rationality as the Therapy of Self-Liberation in Spinoza's Ethics

A given statement may be plausible, well founded or true. An individual action may be judged courageous, useful or good. Human beings are judged as well, for statements or actions that invite such evaluations, though the terms used may be different: a person may be described as truthful and virtuous, clever and happy. Epistemology and ethics - the theories that justify theoretical and practical judgements - may address not only the criteria used to assess states of belief, assertions, knowledge and the like, actions, omissions and feelings, but also the people that give rise to them. Nowadays, the issue of when and how a human being becomes clever, truthful, good or happy is less a matter of philosophy and more a question for religion, psychology and pedagogy. This has not always been the case. There has been a perceptible shift in moral philosophy: in antiquity, inquiries as to when a life is to be classified as good or happy were prevalent; in the modern era, the focus is primarily on when an individual action is to be regarded as right or good, wrong or ba