Effects of debinding and sintering atmosphere on properties and corrosion resistance of powder injection molded 316 L - stainless steel

316L stainless steel is a common biomedical material. Currently, biomedical parts are produced through powder injection molding (PIM). Carbon control is the most critical in PIM. Improper debinding can significantly change the properties of the final product. In this work, thermal debinding and sintering were performed in two different furnaces (i.e. laboratory and commercially available furnaces) to study the mechanical properties and corrosion resistance. Debounded samples were sintered in different atmospheres. The samples sintered in inert gas showed enhanced mechanical properties compared with wrought 316L stainless steel and higher corrosion rate than those sintered in the vacuum furnace. The densification and tensile strength of the hydrogen sintered samples increased up to 3% and 51%, respectively, compared with those of the vacuum-sintered samples. However, the samples sintered in inert gas also exhibited reduced ductility and corrosion resistance. This finding is attributed to the presence of residual carbon in debonded samples during debinding

JUEB: Jurnal Ekonomi dan Bisnis. Vol. 1. No. 3 September 2022

Penelitian ini memiliki tujuan untuk mengetahui apakah kesadaran merek (brand awareness), loyalitas merek (brand loyalty) dan citra merek (brand image) berpengaruh positif pada minat beli online di Tokopedia. Penelitian ini menggunakan tipe explanatory. Metode sampling yang digunakan yaitu non-probability sampling dengan pendekatan convenience sampling yang disebarkan secara online melalui google form. Sebanyak 80 responden pengguna Tokopedia di Jabodetabek dijadikan sampel riset dengan skala pengukuran menggunakan skala Likert. Metode analisa yang digunakan menggunakan Regresi Linear Berganda dan di olah menggunakan SPSS versi 22. Uji Instrumen yang digunakan menggunakan uji validitas dan uji reliabilitas, sedangkan uji asumsi klasik yang digunakan menggunakan uji Normalitas, uji Multikolinearitas dan uji Heteroskedastitas, Uji analisis data menggunakan uji F, uji t, koefisien determinasi dan persamaan regresi. Hasil analisis data secara parsial menunjukan bahwa Brand Awareness berpengaruh positif terhadap minat beli online di Tokopediam, sedangkan Brand Loyalty tidak berpengaruh terhadap minat beli online di Tokopedia dan Brand Image berpengaruh positif terhadap minat beli online di Tokopedia. Sedangkan secara uji simultan menunjukan bahwa Brand Awareness, Brand loyalty dan Brand Image bersama-sama berpengaruh positif terhadap minat beli online di Tokopedia sebesar 59% dan sisanya 41% oleh variable lain

Consent and community engagement in diverse research contexts: reviewing and developing research and practice

Consent and community engagement (CE) in health research are two aspects of a single concern—that research is carried out in a respectful manner where social value is maximized. There are important overlaps and interdependencies between consent and CE; for example, CE can provide insights into how best to tailor consent to context and can be an important component of consent processes. Engaging communities can also have intrinsic and instrumental value beyond consent; for example, as a means of showing respect and identifying appropriate ways of working respectfully. In this paper we critically examine how CE and consent processes are characterized, conducted, and evaluated in diverse health research contexts, and propose a preliminary research agenda to support future learning in these critical areas

Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

Neuromuscular effects of the venom of Russell's viper

SIGLEAvailable from British Library Document Supply Centre- DSC:DX174599 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Pendidikan islam, basis pembangunan umat

Buku ini membahas tentang pembangunan suatu bangsa yang tidak terlepas dari masalah pendidikanx +198 hl

Pendidikan Islam, Basis Pembangunan Umat

ilus, x,198 hlm, 15 c

Fresh and Early-Age Properties of Cement Pastes and Mortars Blended with Nickel Slag

Usage of industrial by-product materials in concrete is increasing because this is a sustainable way to manage the by-products and convert them into economic values. This paper presents the properties of fresh and hardened cement pastes and mortars blended with a proprietary nickel slag. Water demand slightly reduced with the increase of the slag content in determination of normal consistency. Incorporation of the slag with cement slightly prolonged initial and final setting time. The Le-Chatelier soundness test results did not show any increase in expansion for cement replacement of up to 65% by the slag though it has high magnesium content. The strength activity index of the slag was found to be 84% at 28 days when 20% of cement was replaced by the slag. Cement was replaced by the slag at rates of 20-50% in mortar mixtures having water to binder ratio of 0.5. Results show that 30% and 50% replacement of cement by the slag provided about 83% and 66% compressive strength respectively compared to that of 100% cement mortar specimens

Cystic lymphangioma of the mesentery causing intestinal obstruction

Singapore Medical Journal481