Abstract We present the findings of an extensive examination on newly designed CdO-rich and transparent glass shields for nuclear medicine facilities in lieu traditional unfavorable materials, such as lead concrete. Gamma-ray transmission factors are determined using a variety diagnostic, therapeutic, research radioisotopes, including 67 Ga, 57 Co, 111 In, 201 Tl, 99m Tc, 51 Cr, 131 I, 58 137 C...

The agricultural spreading of treated sewage sludge is a valid strategy in terms circular economy for the management this nutrient-rich waste. Anaerobic digestion (AD) can be applied to stabilize and hygienize sludge, making it suitable reuse, while producing biogas utilized as an energy vector. However, presence contaminants, including petroleum hydrocarbons, could limit widespread utilization...

Abstract A patient’s respiratory rate is one of the critical vital signs that a determinant patient well-being. However, it all too often neglected or misreported by health care professionals. This study presents design, build and testing low-cost, portable monitor to facilitate accurate reporting rate. The comprised thermistor-based transducer capture breath cycle patients based on temperature...

Hydrogenated small fullerenes (Cn, n < 60) are of interest as potential astrochemical species, and intermediates in hydrogen-catalysed fullerene growth. However, the computational identification key stable species is difficult due to vast configurationally space structures. In this study, we explored routes predict hydrogenated fullerenes. We showed that neither local geometry nor electronic...

Đồng bằng sông Cửu Long đang trong giai đoạn xây dựng cơ sử hạ tầng với hàng loạt các công trình giao thông lớn đã và được triển khai như cao tốc Trung Lương – Mỹ Thuận, Bến Lức Thành, cầu Bình Khánh, Thủ Thiêm 2. Trong khi đó nguồn cát vàng hạt để chế tạo bê tông xi măng ngày càng trở lên khan hiếm. Để đáp ứng nhu dự án tiến hành phối trộn mịn (CM) nghiền thô còn gọi là đá mi (ĐX) ra hỗn hợp d...

Introduction The amount of speech information available to patients with cochlear implants (CIs) is reduced by the limitations of current CI systems, which are characterised by (a) an insufficient number of effective channels imposed by the design and placement of the electrode, leading to poor frequency resolution; (b) a deficiency in the representation of the fine structure of the input signa...

Polycyclic aromatic hydrocarbons (PAHs) and n-alkanes are important specific organic constituents in fine particulate matter (PM2.5). Seventy-five PM2.5 samples were collected Spring Changzhou, to investigate the concentrations sources of (C9–C40) PAHs. The average total PAHs (∑PAHs) (∑n-alkanes) 4.37 ± 4.95 ng/m3 252.37 184.02 ng/m3, ranging from 0.43 22.22 57.37 972.17 respectively. ∑n-alkane...

An efficient and accurate method for concrete thermal parameter inversion is essential to guarantee the reliable prompt analysis results of dams. Traditional methods either suffer from low efficiency or are limited in accuracy. Thus, this paper presents a multiple based on an integrated surrogate model (ISM) Jaya algorithm. This replaces finite element with ISM incorporating three machine learn...