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The article covers theoretical attempts to determine the productivity and some other parameters of the screw working element, working jointly with the planner's bucket in order to improve the field floating process that meets the agrotechnical requirements of the pre-sowing background. This article shows the change in the performance of the screw working element depending on the speed of rotation of the screws and on the diameter of the screw. Based on this work we conducted selective experiments with the experimental sample of the mini planner

In this research, fixture was designed and implemented on assembly line to improve ergonomics along with reducing the required time and manpower. It reduced the required manpower in half and subsequently led improvement the productivity. Providing ease in operation, fixture significantly reduced fatigue to the workers. The aim of this paper was to design and development of fixture for engine door assembly. The problem with assembly was analysed and fixture is proposed to tackle the key issues. To eliminate traditional trial and error approach, the fixture was designed using CAFD along with FEA validation. The proposed fixture manufactured and deployed in current assembly line. It improves total profitability and quality of process by achieving significant reduction of 40% in assembly time. Prior to fixture, time needed for assembly was 24 minutes. After the fixture, this assembly time reduces to 14.4 minutes i.e. 40% reduction is observed.

The article considers the traditional and digital technologies taking into account vocational education modern directions of development and modernization. It has been substantiated that the integration of such technologies is an important factor in improving the quality of vocational education. The authors' approach to such integration is proposed on the basis of complementarity or mutual reinforcement of the capabilities of traditional and digital technologies. The types of integration of such technologies are described from the standpoint of increasing their didactic productivity: addition, replacement, development, transformation. Algorithms for the integration of traditional and digital technologies in teaching a particular discipline and in the implementation of an educational program are presented. These algorithms can be used by college teachers and heads of educational programs of secondary vocational education.

We examine the effects of trade liberalization in China on the evolution of markups and productivity of manufacturing firms. Although these dimensions of performance cannot be separately identified when firm output is measured by revenue, detailed price deflators make it possible to estimate the average effect of tariff reductions on both. Several novel findings emerge. First, cuts in output tariffs reduce markups, but raise productivity. Second, pro-competitive effects are most important among incumbents, while efficiency gains dominate for new entrants. Third, cuts in input tariffs raise both markups and productivity. We highlight mechanisms that explain these findings in the Chinese context.

In response to the call of the 19th CPC National Congress, China's large-scale power grid companies have proposed in recent years to improve total factor productivity. Based on the analysis of the problems existing in the traditional efficiency evaluation methods of power grid enterprises and the importance of the evaluation of total factor productivity, combined with literature research, this paper focuses on the input-output factors with characteristics of power grid companies.

Selective partial oxidation of methane to methanol suffers from low efficiency. Here, we report a heterogeneous catalyst system for enhanced methanol productivity in methane oxidation by in situ generated hydrogen peroxide at mild temperature (70°C). The catalyst was synthesized by fixation of AuPd alloy nanoparticles within aluminosilicate zeolite crystals, followed by modification of the external surface of the zeolite with organosilanes. The silanes appear to allow diffusion of hydrogen, oxygen, and methane to the catalyst active sites, while confining the generated peroxide there to enhance its reaction probability. At 17.3% conversion of methane, methanol selectivity reached 92%, corresponding to methanol productivity up to 91.6 millimoles per gram of AuPd per hour.

Recycling campaigns abound, but do consumers think about what becomes of those recyclables? This research proposes that product transformation salience (thinking about recyclables turning into new products) increases recycling. The authors theorize that consumers are inspired by the transformation of recyclables into new products and that this inspiration motivates them to recycle. The authors demonstrate the effect of product transformation messages on recycling behavior using a recycling campaign (Study 1) and advertisements for products made from recycled plastic (Study 2). Study 3 demonstrates the mediating role of inspiration. Then, three field studies provide robust support for the transformation salience effect through click-through rates for recycling advertisements (Study 4), recycling rates during pre–football game tailgating (Study 5), and a reduction in the amount of recyclable materials incorrectly placed in the landfill bin by students in a university residence hall (Study 6). The authors discuss implications for the design of recycling campaigns and positioning of recycled products in the marketplace as well as theoretical contributions regarding the roles of transformation salience and inspiration in encouraging recycling and other sustainable behaviors.

Hydrogen peroxide (H₂O₂) synthesis generally requires substantial postreaction purification. Here, we report a direct electrosynthesis strategy that delivers separate hydrogen (H₂) and oxygen (O₂) streams to an anode and cathode separated by a porous solid electrolyte, wherein the electrochemically generated H⁺ and HO₂⁻ recombine to form pure aqueous H₂O₂ solutions. By optimizing a functionalized carbon black catalyst for two-electron oxygen reduction, we achieved >90% selectivity for pure H₂O₂ at current densities up to 200 milliamperes per square centimeter, which represents an H₂O₂ productivity of 3.4 millimoles per square centimeter per hour (3660 moles per kilogram of catalyst per hour). A wide range of concentrations of pure H₂O₂ solutions up to 20 weight % could be obtained by tuning the water flow rate through the solid electrolyte, and the catalyst retained activity and selectivity for 100 hours.

Climate change is altering habitats for marine fishes and invertebrates, but the net effect of these changes on potential food production is unknown. We used temperature-dependent population models to measure the influence of warming on the productivity of 235 populations of 124 species in 38 ecoregions. Some populations responded significantly positively (n = 9 populations) and others responded significantly negatively (n = 19 populations) to warming, with the direction and magnitude of the response explained by ecoregion, taxonomy, life history, and exploitation history. Hindcasts indicate that the maximum sustainable yield of the evaluated populations decreased by 4.1% from 1930 to 2010, with five ecoregions experiencing losses of 15 to 35%. Outcomes of fisheries management—including long-term food provisioning—will be improved by accounting for changing productivity in a warmer ocean.