A systematic review on 1,8-naphthalimide derivatives as emissive materials in organic light-emitting diodes

Organic light-emitting devices (OLEDs) have garnered significant research attention owing to their immense application prospects in leading technologies for full-color flat panel displays and eco-friendly solid-state lighting. They demonstrate exceptional features such as mercury-free construction, wide viewing angle, superior color quality and captivating flexibility. The requirements of light-emitting organic materials pertaining to high stability, lifetime and luminescence quantum yield, combined with the fabrication of devices with high performance efficiency, are highly challenging. Rational molecular design of 1,8-naphthalimide (NI) derivatives can offer quite promising results in achieving standard-light-emitting materials with a wide range of colors for OLED applications. This review is mainly focused on the synthesis and usage of varyingly substituted NI frameworks as luminescent host, dopant, hole-blocking and electron-transporting materials for OLEDs that emit not only red, orange, green and blue colors, but also function as white emitters, which can really have an impact on reducing the energy consumption. The future prospects that could be explored to improve the research in the highly promising field of OLEDs are also discussed. Graphical abstract

PlasmidMaker: a Versatile, Automated, and High Throughput End-to-End Platform for Plasmid Construction

Plasmids are used extensively in basic and applied biology. However, design and construction of plasmids, specifically the ones carrying complex genetic information, remains one of the most time-consuming, labor-intensive, and rate-limiting steps in performing sophisticated biological experiments. Here, we report the development of a versatile, robust, automated end-to-end platform named PlasmidMaker that allows error-free construction of plasmids with virtually any sequences in a high-throughput manner. This platform consists of a most versatile DNA assembly method using Pyrococcus furiosus Argonaute (PfAgo)-based artificial restriction enzymes, a user-friendly frontend for plasmid design, and a backend that streamlines the workflow and integration with a robotic system. As a proof of concept, we used this platform to generate 101 plasmids from six different species ranging from 5 to 18 kb in size from up to 11 DNA fragments within 3 days. PlasmidMaker should greatly expand the potential of synthetic biology.

Binder free construction of hollow hierarchical Mn-Co-P nanoarrays on nickel foam as an efficient bifunctional electrocatalyst for overall water splitting

Constructing bifunctional electrocatalysts with high-efficiency, low-cost and excellent durability is of great significance for overall water splitting. Structural design of non-noble metal electrocatalysts is essential for tuning their electrocatalytic properties....

Digitally Enabled Organizations- Leveraging New Age Technologies

When inadequate information appears via a long-winded channel, project leaders usually struggle to make timely decisions. There is frequently a lack of visibility, contractual and organizational fragmentation, and genuine facts being segregated and concealed due to an optimism bias. Despite the finest planning and estimation efforts, projects frequently exceed their budgets or experience delays of more than 30%. The paper outlines the importance of data and of data use to improve the performance in projects planning and delivery. The data value and hierarchy are reviewed in the context of the construction industry and the importance of a smooth digitalization process for ensuring acceptance and adoption is discussed. The concept of ‘digital construction blocks’TM and Lean thinking is introduced to address the problem of complexity which is commonly recognized as the main cause of cost overruns, time delays, and poor quality and safety for the construction industry. To capture the footprint of how the asset was built, the authors propose the Digital Twin of Execution adding dynamism to the commonly discussed Digital Twin of Asset, which is more static when the asset has already been constructed. The project is organized into digital blocks, allowing all project functions and disciplines to focus on a common path of construction, allowing for an earlier start of a constraint-free construction and, as a result, de-risking and compressing the total execution schedule. Data from existing systems and technologies is unlocked and placed in automated processes, allowing thousands of documents, activities, and fast-moving events to be collected in digital blocks of construction. The digital block is connected throughout project stages and taken across all aspects of the project, including plot plans, activity plans, drawings, 3D, materials, and so on, resolving the project's disarray caused by manual and analogue procedures. The entire planning, project setup, and execution process is aided by GIS, which provides visibility at various levels of magnification via an interactive geo spatial map superimposed with plot plans, timetables, and work packages. Artificial intelligence (AI) and machine learning (ML) can be used to forecast the probability of danger in various field operations. It's done by using IoT devices implanted in employees’ PPE and in the environment to process data collected on the system. Digital Control Tower can provide a smart dashboard that not only displays the KPIs but also helps the user prioritize his next steps. It may provide an overall view of the project's progress and KPIs, as well as get to the root of a problem in a specific installation area, raise red flags and alerts, and function as a user's assistant by predicting errors early on.

Green recovery packages: a boost for environmental and climate work in the Swedish construction and building industry?

The objective of this study is to explore whether the green recovery packages issued by the Swedish government are aligned with the work of the construction and building industry to become climate-neutral by 2045. We have interviewed heads of sustainability of some of the largest companies in the industry and surveyed companies that have signed the Roadmap for a fossil-free construction and building industry1. Our results show that market-related challenges constitute the most important challenges to the environmental and climate work of the companies in our study. To better respond to these challenges, they require policies that reward frontrunners, primarily green public procurement, and tougher standards and norms. They also requested investments and policies that support the transition to a circular economy. We conclude that while green public procurement is not among the policies and investments included in the recovery packages, other parts are well aligned with the challenges encountered, requested investments and policies, and on-going work. This is particularly true for the above-mentioned investments related to the transition to a circular economy. Further, the study enables us to conclude that it is important to consider the long-term effects of green recovery packages and their potential for return-on-investment in terms of reductions in greenhouse gas (GHG) emissions per SEK. Such packages will also have a better effect if they support on-going environmental and climate work, initiate new actions, and are designed with a systems perspective that facilitates joint action between different companies along the entire supply chain.

Development and Test of Rubber Wheel Full Hydraulic Drill in Coal Mine

In order to solve the problem of moving rig quickly and reducing labor intensity in the mine face with trackless transportation conditions, a solution of rubber wheel drill which meets the working conditions is put forward. The drilling rig adopts the configuration of double power and double system, the power comes from the engine when moving, to achieve walking, steering, braking and temporary stability, relocation and transfer of high efficiency and flexibility, the power comes from the motor when drilling, to achieve rotation, feed and auxiliary Angle adjustment, safe and pollution-free construction. After the assembly and debugging of the whole machine, ground simulation test and underground industrial test were carried out on the rig. The test results show that the rig has strong maneuverability, one person can complete the moving walking, the maximum walking speed is 20km/h, and the steering is flexible and the braking is safe. The maximum depth of drilling hole construction is 318m, the target area hit rate reaches 77.8%, the working performance is stable, the hydraulic system is stable, and all parameters meet the design requirements. The equipment provides new technical equipment for the mine drilling construction with trackless transportation conditions.

Development of technologies and technical means for the construction of wells intended for the production of high-viscosity oils

The development of technologies and technical means of well structures intended for the production of highviscosity oils is an urgent problem in the oil and gas industry. The design of well structures is determined by geological factors. The well design should ensure trouble-free construction of a sealed space of a stable channel between the fluid-saturated layers and the earth's surface.