Predicting the Elastic Modulus of Recycled Concrete Considering Material Nonuniformity: Mesoscale Numerical Method.

The evaluation of the elastic modulus of recycled concrete is one of the focuses of civil engineering and structural engineering, which is not only related to the stability of building structures but also related to the resource utilization of concrete. Therefore, based on the IRSM method in mesoscale, a novel model for predicting the elastic modulus of recycled concrete is proposed which has the advantages of being low-cost and high-precision, amongst others, compared to theoretical and experimental methods. Then, the influence of coarse aggregate, contact surface, gelling material, and air bubbles on the elastic modulus of recycled concrete is studied.

Experimental Study of Stress and Deformation of Reclaimed Asphalt Concrete at Different Temperatures.

Asphalt concrete has been used as a material for dam core walls because of its impermeability, durability and reliability. Firstly, asphalt is a temperature-sensitive material, and many of its characteristics are related to temperature. Secondly, because of the increasing construction height of the dam, the pressure on the asphalt concrete core wall is also great.

Shear Behavior of Recycled Fine Aggregate Reinforced by Nano-MgO Modified Cement.

In order to study the mechanical modification effect of nano-MgO on cement-reinforced recycled fine aggregate (CRA), direct shear tests and triaxial shear tests were carried out. In the test of recycled fine aggregate reinforced by nano-MgO modified cement (MCRA), the cement content was fixed at 2%, and the nano-MgO content varied between 0%, 0.5%, 1.

Mechanical Properties and Energy Evolution of Fractured Sandstone under Cyclic Loading.

Affected by fracture distribution, sandstone shows different deformation and energy evolution characteristics under cyclic loading and unloading conditions. Therefore, uniaxial cyclic loading tests were conducted on fractured sandstone with different angles. The deformation characteristics and the evolution law of energy indexes with the peak load and crack angles were obtained under cyclic loading.

The controlling nutritional status score and clinical outcomes in patients with heart failure: Pool analysis of observational studies.

Background And Aims: Malnutrition is very common in patients with heart failure (HF) and is associated with a worse clinical outcome. The Controlling Nutritional Status (CONUT) score is an easily derived index for the evaluation of malnutrition. This study aimed to evaluate the association between the CONUT score and the prognosis in patients with HF.

Research on Dewatering Characteristics of Waste Slurry from Pipe Jacking Construction.

A large amount of waste slurry is produced during the construction of pipe jacking projects. To avoid the waste slurry occupying too much urban land, it needs to be rapidly reduced. Due to the complex composition of waste slurry, the existing dewatering methods face the problem of low efficiency, and the soil after dewatering is difficult to recycle as soil materials due to high water content and low strength.

Dynamic Characteristics and Damage Constitutive Model of Mudstone under Impact Loading.

The mechanical response characteristics of mudstone from the ingate roadway of the west ventilation shaft in Yuandian No. 2 coal mine, Huaibei City, Anhui Province, China to dynamic loads were quantified in single- and cyclic-impact compression tests, using the split-Hopkinson pressure bar test device. The dynamic stress-strain relationships and the failure characteristics of mudstone samples under different impact loads were analyzed systematically.

Mechanical Properties and Damage Evolution of Concrete Materials Considering Sulfate Attack.

In order to study the durability of concrete materials subjected to sulfate attack, in a sulfate attack environment, a series of concrete tests considering different fly ash contents and erosion times were conducted. The mechanical properties and the micro-structure of concrete under sulfate attack were studied based on the following: uniaxial compressive strength test, split tensile test, ultrasonic impulse method, scanning electron microscopy (SEM) and X-ray diffraction (XRD). The mechanical properties were compressive strength, splitting tensile strength, and relative dynamic elastic modulus, respectively.

Ginkgetin Alleviates Inflammation, Oxidative Stress, and Apoptosis Induced by Hypoxia/Reoxygenation in H9C2 Cells via Caspase-3 Dependent Pathway.

Ginkgetin, the extract of leaves, has been reported to exert preventive and therapeutic effects on cardiovascular disease. However, little is known about its role in myocardial ischemia-reperfusion injury (MIRI). The present study aimed to unveil the function of ginkgetin in cardiomyocytes subjected to hypoxia/reoxygenation (H/R) injury.

Survival analysis of genome-wide profiles coupled with Connectivity Map database mining to identify potential therapeutic targets for cholangiocarcinoma.

Cholangiocarcinoma (CCA) is one of the most common epithelial cell malignancies worldwide. However, its prognosis is poor. The aim of the present study was to examine the prognostic landscape and potential therapeutic targets for CCA.

Life threatening biphasic adverse reactions to desmopressin: case report and review of the literature.

Treatment with desmopressin diacetate arginine vasopressin (DDAVP) and its withdrawal are associated with side effects. We present a rare case of severe biphasic adverse reactions induced by DDAVP and its withdrawal in a 63-year-old female patient. A lump in the left axillary region was biopsied, and she received DDAVP after surgery.