Hemp Research — Page 51

Peer-reviewed industrial hemp research papers, sorted by publication date. Browse the latest findings on hemp cultivation, processing, materials science, biomedical applications, and regulatory science from PubMed, OpenAlex, and other indexed sources.

Design Optimization of the Flexural Behavior of a Novel UHPC–ECC–RC Composite Sandwich Panel (2025)

ABSTRACT To address the limited exploitation of the structural bearing capacity of precast concrete sandwich insulation panels (PCSPs) while achieving material emission reduction without compromising strength, stability, or durability, this study replaced part of the surface‐layer normal concrete with engineered cementitious composites (ECCs) and ultra‐high‐performance concrete (UHPC). Two new sandwich panels, an ECC–RC composite sandwich panel (ECSP) and a UHPC–RC composite sa

FDA‐Approved Medicines (2021)

AbstractAlthough medicines have been needed for the entire span of human existence, the age of pharmaceuticals is a relatively recent era. The benefits accompanying the introduction of new medicines meant to combat age‐old maladies have dramatically altered public health and society. Herein, we review the history of drug discovery, demonstrating a constant evolution in both the approaches utilized and the outcomes of technological and scientific advances. These innovations have come with a cost

The carbon footprint of reinforced concrete (2019)

As legislation forces significant reductions in the operational carbon dioxide emissions of the built environment, increasing attention is focused on the embodied carbon of structural materials. As the most prevalent structural material, the embodied carbon of concrete is of paramount interest. Previous direct or indirect analyses of embodied carbon in concrete have treated it either as an elemental material with a value of single embodied carbon, or calculated embodied carbon for a limited rang

Cyclic Performance of Prefabricated Bridge Piers with Concrete-Filled Steel Tubes and Improved Bracing Connection Detail (2024)

Concrete-filled steel tubes (CFTs) offer significant structural advantages in terms of stiffness, strength, and ductility. The concrete core enhances the stiffness and compressive strength of columns, whereas the steel tube serves as a reinforcement to resist tension and bending by confining the concrete. Moreover, CFT columns offer exceptional resistance, such as high strength, ductility, and energy absorption capacity. This study presents experiments focused on prefabricated bridge piers featu

Rod models of strength of compressed concrete strips of the conjugation between beams and columns of prefabricated monolithic frames (2024)

Introduction. The existing methods of calculation of reinforced concrete structures are not universal. Each calculation model is suitable only for a limited class of elements. The construction of a general design model that adequately describes the resistance of structures to shear forces in combination with bending is one of the most difficult tasks of reinforced concrete theory. Therefore, in practical calculations of shear strength, contingent models are used. Aim. Construction of bar mode

Design of prefabricated reinforced concrete structures: comparative analysis of prefabricated reinforced concrete floor slab (2021)

Abstract The article describes application of precast, cast-in-situ and composite structures on construction site. Importance of Analysis of Russian (SP) and European design standards (EuroCodes) is underlined. Historical review of Russian codes for composite reinforced concrete structures is given. Methods of composite structures calculating according to current Russian Codes are given. Ultimate and service limits states are listed for describing structures. Advantages and disadv

Development of Prefabricated Timber-Steel-Concrete Ribbed Decks (2019)

In the last years several projects of medium and high-rise timber-based multi-story buildings have been proposed and developed. In most of the cases timber-concrete composite (TCC) floors play a significant role for the design of the structural slabs due to acoustic performance, fire protection and structural issues. Within several research projects and with the aim to optimize the structural and ecological characteristics of building components the Department of Structural Design and Timber Eng

Can They Keep Up? Fecundity, Pollen Fitness, and Reproductive Success in Subdioecious, Sexually Labile Cannabis Sativa L (2024)

Pollen grains are male gametophytes, haploid intergeneration organisms, that function as vectors for gamete dispersal. Pollen compete to fertilize ovules, potentially influencing differential reproductive success - a key condition for microevolution. Variation in the abundance and fertility of pollen produced by plants sets the stage for intense competition among pollen-derived sperm cells for the often limited supply of ovules. To explore this, I developed a methodological framework for collect

Can They Keep Up? Fecundity, Pollen Fitness, and Reproductive Success in Subdioecious, Sexually Labile Cannabis Sativa L (2024)

Pollen grains are male gametophytes, haploid intergeneration organisms, that function as vectors for gamete dispersal. Pollen compete to fertilize ovules, potentially influencing differential reproductive success - a key condition for microevolution. Variation in the abundance and fertility of pollen produced by plants sets the stage for intense competition among pollen-derived sperm cells for the often limited supply of ovules. To explore this, I developed a methodological framework for collect