An Integrated Multimodal-Based CAD System for Breast Cancer Diagnosis.

Breast cancer has been one of the main causes of death among women recently, and it has been the focus of attention of many specialists and researchers in the health field. Because of its seriousness and spread speed, breast cancer-resisting methods, early diagnosis, diagnosis, and treatment have been the points of research discussion. Many computers-aided diagnosis (CAD) systems have been proposed to reduce the load on physicians and increase the accuracy of breast tumor diagnosis.

Construction and Mechanism of Janus Nano-Graphite Reinforced Foam Gel System for Plugging Steam in Heavy Oil Reservoirs.

High-temperature steam injection is a primary method for viscosity reduction and recovery in heavy oil reservoirs. However, due to the high mobility of steam, channeling often occurs within the reservoir, leading to reduced thermal efficiency and challenges in enhancing oil production. Foam fluids, with their dual advantages of selective plugging and efficient oil displacement, are widely used in steam-injection heavy oil recovery.

Hybrid Functional Near-Infrared Spectroscopy System and Electromyography for Prosthetic Knee Control.

The increasing number of individuals with limb loss worldwide highlights the need for advancements in prosthetic knee technology. To improve control and quality of life, integrating brain-computer communication with motor imagery offers a promising solution. This study introduces a hybrid system that combines electromyography (EMG) and functional near-infrared spectroscopy (fNIRS) to address these limitations and enhance the control of knee movements for individuals with above-knee amputations.

Gold-Graphene Quantum Dot Hybrid Nanoparticle for Smart Diagnostics of Prostate Cancer.

Prostate cancer is one of the most prevalent cancers afflicting men worldwide, often detected at advanced stages, leading to increased mortality rates. Addressing this challenge, we present an innovative approach employing electrochemical biosensing for early-stage prostate cancer detection. This study used Indium-Tin Oxide (ITO) as a substrate and a deposited gold-graphene quantum dot (Au-GQD) nanohybrid to establish electrochemical sensing platforms for DNA-hybridization assays.

Direct electrochemical N oxidation to nitrate on supportive Pt/CeO.

Here, we present the development of an efficient Pt/CeO catalyst for electrocatalytic N oxidation to nitrate. Characterization results indicate that highly dispersed Pt and oxygen vacancies from CeO nanocubes (NCs) exhibit strong interactions, which promote the N adsorption on the catalyst surface and suppress the competitive OER activity on oxygen vacancies, resulting in significantly enhanced e-NOR performance.

Sample loading in gel electrophoresis using adapted 3D printers.

In gel electrophoresis, samples that are dispensed too high above or too low into the wells result in sub-optimal outcomes. Here, an adapted 3D printer liquid handler equipped with an optical sensor was found to attain vertical sample delivery positionings at a standard deviation over mean ratio of 0.008.

A study of the optimum injection rate of carbonic acid during matrix acidizing of carbonate reservoirs: Implications for reducing CO emissions.

This study investigates the process of optimizing the injection rates of carbonic acid during matrix acidizing in carbonate formations, highlighting its impact on wormhole formation, dissolution, and the changes in rock petrophysical properties. Indiana limestone core samples, with porosity ranging from 14 % to 16 % and permeability from 7 to 12 mD, were flooded using diffrent injection rates (0.5, 1, 2, and 5 cm³/min) to determine the optimal injection velocity.

The Occurrence Characteristics and Enrichment Patterns of Shale Oil in Different Lithofacies: A Case Study of the Fengcheng Formation in the Mahu Sag.

The supply of shale oil is of significant importance to the sustainability of energy resources. However, due to the diversity of shale lithofacies, the occurrence characteristics and enrichment patterns of free oil and adsorbed oil remain unclear. Based on this, taking the shale oil reservoir of the Fengcheng Formation in the Mahu Sag as the research object, a series of experiments were conducted, including X-ray diffraction analysis (XRD), total organic carbon (TOC) content analysis, high-pressure mercury injection (HPMI), and field emission scanning electron microscopy (FE-SEM).

Characteristics of Pore Structure and the Evolution Process in Terrestrial Shale Reservoirs: A Case Study of the Shahejie Formation in Dongpu Depression, Bohai Bay Basin.

Microscopic pore characteristics of shale are very important for exploring the oil occurrence and content. However, previous studies on heterogeneous terrestrial shale are lacking. We choose the Shahejie formation (SF) of the Dongpu Depression in the Bohai Bay Basin as a case study.

Experimental Analysis of Gas Injection Feasibility and Evaluation of Enhanced Recovery Potential in Mahu Tight Conglomerate Reservoirs.

A series of development technologies of "horizontal well plus volume fracturing" have been established to achieve an annual output of one million tons of crude oil in 7 the Mahu tight conglomerate reservoir. However, such oil fields generally face problems such as rapid pressure drop, rapid production decline, difficulty in water injection, and gas channeling, seriously affecting the beneficial development of tight conglomerate reservoirs. To solve these problems, in this study, we carried out the feasibility experiment of different gas injection developments and the potential evaluation of enhanced oil recovery based on the combination of laboratory experiments and numerical simulation.

Catalytic degradation of various dyes using silver nanoparticles fabricated within chitosan based microgels.

Precipitation polymerization method was used to synthesize chitosan based poly[chitosan-N-isopropylmethacrylamide-acrylic acid] [P(CS-NI-AA)] microgel particles. Synthesized P(CS-NI-AA) microgel particles were utilized as micro-reactors for the fabrication of silver nanoparticles (AgNPs) inside the structure of microgels through chemical reduction of Ag ions using NaBH as reducing agent. P(CS-NI-AA) and Ag-P(CS-NI-AA) systems were analyzed using various characterization techniques like scanning electron microscopy (SEM), ultraviolet-visible (UV-visible) spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy.

Ni Vacancy and the Se/S Ratio Regulate the p-Band Center of Hollow NiSSe/Phase Junction CdS to Achieve High Efficiency and Broad-Spectrum Photocatalytic Performance.

Rational design of defect engineering and interfacial built-in electric fields of photocatalysts is imperative for renewable energy conversion. Herein, a multi-strategy involving the introduction of Ni vacancies, the adjustment of the Se/S ratio, and the construction of dual junctions are employed to simultaneously realize NiSSe/phase junction CdS (HCC) an excellent photocatalytic activity and broad light absorption. With the help of V and the regulation of S/Se, the local electrons are redistributed to occupy more antibonding orbitals and adjust the p-band center, thus optimizing the H adsorption energy of the catalyst to accelerate the photocatalytic reaction kinetics.

Chemical composition, multiple sources, and health risks of PM: A case study in Linyi, China's plate and logistics capital.

Elucidating the chemical composition, sources, and health risks of fine particulate matter (PM) is crucial for effectively preventing and controlling air pollution. This study collected PM samples in Linyi from November 10, 2021, to October 15, 2022, spanning the period of the 2022 Winter Olympics and Paralympics. The analysis focused on seasonal variations in the chemical composition of PM, including water-soluble ions, inorganic elements, and carbonaceous aerosols.

Methane emissions at pressure-regulating stations in China: A comparative analysis of various quantitative methods.

As a key component of the distribution system, metering and pressure-regulating (M&R) stations provide an opportunity for effective mitigation of methane emissions. Given that these stations are readily accessible, above-ground facilities, routine methane emission monitoring can identify issues and with repair or upgrades this can lead to reduced methane emissions. This practice has become an important measure for addressing climate change.

Research on the dynamic characteristics of the cavitation bubble collapsing between multiple particles.

The combined action of multiple particles and cavitation bubbles can severely damage hydraulic machinery. Combining the Kelvin impulse theory and the results of high-speed photography experiments, this paper researches the dynamic behaviors of a single bubble located between three equal-sized spherical particles. Non-spherical morphological evolution characteristics in the collapse stage of the bubble are described.

A review on chloride induced corrosion in reinforced concrete structures: lab and investigation.

Reinforced concrete (RC) constructions are seriously threatened by chloride-induced corrosion (CIC) and carbonation, which can result in structural degradation, safety issues, and financial losses. Electrochemical methods and microstructural analysis tests are some of the laboratory techniques used to examine key elements of CIC, such as the impact of different variables and the efficacy of mitigation solutions. studies that make use of non-destructive testing, chloride profiling, and half-cell potential measurements offer important new insights into the long-term performance and causes of RC structure deterioration in real-world circumstances.

Hydrogen Radical Enabling Industrial-Level Oxygen Electroreduction to Hydrogen Peroxide.

The electrochemical synthesis of hydrogen peroxide from oxygen and water, powered by renewable electricity, provides a highly attractive alternative to the energy-intensive autoxidation process presently used in industry, but much remains unknown about this two-electron oxygen reduction reaction (2e-ORR), especially the local proton effect. Here, we have investigated the function of hydrogen-associated intermediates in the 2e-ORR using a rationally designed cooperative electrode material with cobalt (II) clusters embedded onto the oxidized carbon nanotube composites (Co-OCNT). We found that the local proton availability can determine both the reaction kinetics and selectivity.

An investigative review of the expanded capabilities of thermal/optical techniques for measuring carbonaceous aerosols and beyond.

Carbonaceous aerosols primarily comprise organic carbon (OC) and black carbon (BC). Thermal-optical analysis (TOA) is the most commonly used method for separating carbonaceous aerosols into OC and EC (BC is referred to as elemental carbon EC, in this method). Advances in hardware design and algorithms have expanded the capabilities of TOA beyond just distinguishing OC and EC.