Power arc welder touch-started with consumable electrode

Power arc welder formed as a hand-held welding gun touch-starts, retracts a consumable electrode to create the desired arc, and then commences feeding of the consumable electrode at the rate required to form the intended bead or spot. This device achieves uniform spot welds repeatedly

ANALISIS PENANGANAN WASTE MATERIAL CONSUMABLE DAN NON CONSUMABLE PADA PROYEK PERUMAHAN SEDERHANA DI KOTA PALANGKA RAYA

Material merupakan salah satu komponen penting yang harus diperhatikan karena sangat mempengaruhi nilai produktivitas dan biaya proyek. Dalam pelaksanaan pembangunan sering terjadi masalah yaitu, material konstruksi yang berlebih, tersisa, berserakan, hancur yang tidak dapat digunakan lagi yang disebut waste material. Penelitian ini bertujuan untuk mengetahui material yang berpotensi menjadi waste material consumable dan non consumable beserta penyebabnya, upaya mengurangi waste material consumable dan non consumable yang akan terjadi dan cara penanganan waste material consumable dan non consumable yang telah terjadi pada proyek perumahan sederhana di Kota Palangka Raya. Penelitian ini dilakukan pada bulan Maret-September 2020, selama 7 bulan. Pandemi COVID-19 menyebabkan penelitian ini tertunda dan dilanjutkan kembali setelah memasuki kenormalan baru. Data penelitian diperoleh melalui survei penyebaran kuesioner kepada 35 pengembang perumahan sederhana di Kota Palangka Raya. Teknik analisis data yang digunakan adalah analisis frekuensi, dan deskriptif. Hasil penelitian ini menunjukkan bahwa material yang berpotensi menjadi waste material pada consumable material adalah semen, pasir, kerikil/agregat kasar, besi beton/tulangan, kayu (papan), keramik, pipa, paku. Sedangkan pada non-consumable material adalah papan bekisting, perancah kayu (balok) dan perancah kayu (bulat). Faktor penyebab waste material pada consumable material adalah pengukuran di lapangan tidak akurat sehingga terjadi kelebihan volume. Dan untuk non-consumable material adalah kesalahan yang diakibatkan oleh tenaga kerja. Upaya untuk mengurangi waste material consumable dan non consumable yang akan terjadi adalah kerja dengan teliti. Cara penanganan waste material consumable dan non consumable yang telah terjadi adalah gunakan kembali

High-strength tungsten alloy with improved ductility

Alloy combines superior strength at elevated temperatures with improved ductility at lower temperatures relative to unalloyed tungsten. Composed of tungsten, rhenium, hafnium, and carbon, the alloy is prepared by consumable electrode vacuum arc-melting and can be fabricated into rod, plate, and sheet

Kinetic market models with single commodity having price fluctuations

We study here numerically the behavior of an ideal gas like model of markets having only one non-consumable commodity. We investigate the behavior of the steady-state distributions of money, commodity and total wealth, as the dynamics of trading or exchange of money and commodity proceeds, with local (in time) fluctuations in the price of the commodity. These distributions are studied in markets with agents having uniform and random saving factors. The self-organizing features in money distribution are similar to the cases without any commodity (or with consumable commodities), while the commodity distribution shows an exponential decay. The wealth distribution shows interesting behavior: Gamma like distribution for uniform saving propensity and has the same power-law tail, as that of the money distribution, for a market with agents having random saving propensity.Comment: RevTeX4, 6 pages, 5 eps figures, accepted in Eur. Phys. J.

Net worth and housing equity in retirement

This paper documents the trends in the life-cycle profiles of net worth and housing equity between 1983 and 2004. The net worth of older households significantly increased during the housing boom of recent years. However, net worth grew by more than housing equity, in part because other assets also appreciated at the same time. Moreover, the younger elderly offset rising house prices by increasing their housing debt, and used some of the proceeds to invest in other assets. We also consider how much of their housing equity older households can actually tap, using reverse mortgages. This fraction is lower at younger ages, such that young retirees can consume less than half of their housing equity. These results imply that ‘consumable’ net worth is smaller than standard calculations of net worth. JEL Classification: G11, E2

Amortised resource analysis with separation logic

Type-based amortised resource analysis following Hofmann and Jost—where resources are associated with individual elements of data structures and doled out to the programmer under a linear typing discipline—have been successful in providing concrete resource bounds for functional programs, with good support for inference. In this work we translate the idea of amortised resource analysis to imperative languages by embedding a logic of resources, based on Bunched Implications, within Separation Logic. The Separation Logic component allows us to assert the presence and shape of mutable data structures on the heap, while the resource component allows us to state the resources associated with each member of the structure. We present the logic on a small imperative language with procedures and mutable heap, based on Java bytecode. We have formalised the logic within the Coq proof assistant and extracted a certified verification condition generator. We demonstrate the logic on some examples, including proving termination of in-place list reversal on lists with cyclic tails

Resource-driven Substructural Defeasible Logic

Linear Logic and Defeasible Logic have been adopted to formalise different features relevant to agents: consumption of resources, and reasoning with exceptions. We propose a framework to combine sub-structural features, corresponding to the consumption of resources, with defeasibility aspects, and we discuss the design choices for the framework

Precision cancer monitoring using a novel, fully integrated, microfluidic array partitioning digital PCR platform.

A novel digital PCR (dPCR) platform combining off-the-shelf reagents, a micro-molded plastic microfluidic consumable with a fully integrated single dPCR instrument was developed to address the needs for routine clinical diagnostics. This new platform offers a simplified workflow that enables: rapid time-to-answer; low potential for cross contamination; minimal sample waste; all within a single integrated instrument. Here we showcase the capability of this fully integrated platform to detect and quantify non-small cell lung carcinoma (NSCLC) rare genetic mutants (EGFR T790M) with precision cell-free DNA (cfDNA) standards. Next, we validated the platform with an established chronic myeloid leukemia (CML) fusion gene (BCR-ABL1) assay down to 0.01% mutant allele frequency to highlight the platform's utility for precision cancer monitoring. Thirdly, using a juvenile myelomonocytic leukemia (JMML) patient-specific assay we demonstrate the ability to precisely track an individual cancer patient's response to therapy and show the patient's achievement of complete molecular remission. These three applications highlight the flexibility and utility of this novel fully integrated dPCR platform that has the potential to transform personalized medicine for cancer recurrence monitoring

USING MACHINE LEARNING AND ARTIFICIAL INTELLIGENCE TO MINIMIZE SHIPPING COSTS OF CONSUMABLES IN A SUBSCRIPTION OR MPS SYSTEM

A user of a consumable product needs to know when the consumable will reach end of life (EOL). This enables the user to purchase a replacement consumable to both avoid wasting any remaining material of the product by replacing it too early as well as being able to have a replacement on hand and avoid the inability to use the product