A Hybrid Dual-Axis Solar Tracking System: Combining Light-Sensing and Time-Based GPS for Optimal Energy Efficiency by Muhammad Hammas, Hassen Fituri, Ali Shour, Ashraf Ali Khan, Usman Ali Khan, Shehab Ahmed

“…The system is based on the combination of two approaches to precisely track the sunlight: first, using multiple LDRs (light-dependent resistors) as photo sensors to track the position of the sun by balancing the resistivity using a proportional integral deprival (PID) controller, and the second approach using the time-based control for cloudy days when sunlight is diffused, getting the time GPS coordinates and time to calculate the accurate position of the sun by determining the azimuth and altitude angle. …”
Get full text

Squamous Cell Carcinomas of the Skin Explore Angiogenesis-Independent Mechanisms of Tumour Vascularization by Ievgenia Pastushenko, Tamara Gracia-Cazaña, Sandra Vicente-Arregui, Gert G. Van den Eynden, Mariano Ara, Peter B. Vermeulen, Franciso José Carapeto, Steven J. Van Laere

“…We evaluated the relative blood vessel area using the Chalkley counting method in each histologic subtype of these tumours. We calculated the degree of proliferation of blood vessel endothelium dividing CD105-Chalkley score by CD31-Chalkley score. …”
Get full text

Behavior of an Innovative Square Composite Column Made of Four Steel Tubes at the Corners and Corrugated Steel Batten Plates on all Sides by Chengquan Wang, Zou Yun, Jinxin Kang, Yuan Zhou, Ming Chen, Yichao Wu

“…Through the experimental and finite element (FE) numerical simulation calculations, the axial compression performance and seismic performance of the ISSCC column were discussed, and the FE model was verified through experimental results. …”
Get full text

A digital platform for automated analysis of 1H NMR data: prototype framework of digital reference standard by Sunil Babu Paudel, Joo-Won Nam, Gonzalo R. Malca Garcia, Ben Shapiro, Pekka Laatikainen, Yang Liu

“…This digital platform significantly reduces the need for manual intervention and shows promise in using spectral fitting to compare the calculated spectrum derived from a digital Reference Spectrum with an experimental spectrum. …”
Get full text

Magnetic field characterization of edge currents in quantum spin Hall insulators by Felipe A Pinto, Ricardo C Heitzer, Eitan Dvorquez, Roberto Rodriguez, Qiang Sun, Andrew D Greentree, Brant C Gibson, Jerónimo R Maze

“…In 2D strips, the application of a bias voltage along the edge generates a magnetization that can be measured using quantum sensors and magnetometry techniques. In this work, we calculate the magnetic field in the vicinity of the edge and explore the potential role of nitrogen-vacancy centers in diamond as local probes for the characterization of QSH edge states in topological insulators. …”
Get full text

Molecular Analysis of the Bacterial Communities in Crude Oil Samples from Two Brazilian Offshore Petroleum Platforms by Elisa Korenblum, Diogo Bastos Souza, Monica Penna, Lucy Seldin

“…Richness estimators also calculated by MOTHUR indicated that oil samples with high-water content were the most diverse. …”
Get full text

Leakage Characteristic of Helical Groove Seal Designed in Reactor Coolant Pump by Meng Zhang, Xiao-fang Wang, Sheng-li Xu, Shuo Yin

“…The friction factors of the helical groove seals with helix angles varying from 20 deg to 50 deg, at a range of rotational speed and axial Reynolds number, were, respectively, calculated. For the helically grooved stator with the helix angle greater than 20 deg, the leakage shows an upward trend with the helix angle. …”
Get full text

Land Use/Cover Change Detection and Urban Sprawl Analysis in Bandar Abbas City, Iran by Mohsen Dadras, Helmi Zulhaidi Mohd Shafri, Noordin Ahmad, Biswajeet Pradhan, Sahabeh Safarpour

“…This study aims to investigate urban growth process in Bandar Abbas city, Iran, focusing on urban sprawl and land use change during 1956–2012. To calculate urban sprawl and land use changes, aerial photos and satellite images are utilized in different time spans. …”
Get full text

Spatiotemporal Analysis of Drought Characteristics in Song-Liao River Basin in China by Xiaojing Shen, Xu Wu, Xinmin Xie, Zhenzhen Ma, Meijian Yang

“…The monthly accumulated precipitation and monthly average temperature of 117 meteorological stations in Song-Liao River Basin (SLRB) were used to calculate the Standardized Precipitation Evapotranspiration Indices (SPEI) to analyze the drought characteristics, including long-term trends, drought affected area, climate abrupt change, intensive drought occurrence regions, and drought durations during 1964–2013 with the support of GIS. …”
Get full text

P-FFT Accelerated EFIE with a Novel Diagonal Perturbed ILUT Preconditioner for Electromagnetic Scattering by Conducting Objects in Half Space by Lan-Wei Guo, Yongpin Chen, Jun Hu, Joshua Le-Wei Li

“…The high accuracy of EFIE is maintained, yet good calculating efficiency comparable to the combined field integral equation (CFIE) can be achieved. …”
Get full text

The History of a Hospital and Challenge of Expansion: CostEffectiveness and Surgical Coverage by Abdulrahman Hama Amin Hussein, Sanoor kadir Mahmood, Salah Qadir Mahmood, Sakar Abdulkarim Nidhamaddin

“…The number of operations performed, a number of doctors trained and an increase in surgical coverage were calculated. The results showed that there is an increase in the cost per quality-adjusted life year (QALY) gained with ophthalmic surgeries and DALY. …”
Get full text

ANFIS method to enhance FMEA water operation model of Indonesia drinking water distribution system by Diah Septiyana, Mohamed Abd. Rahman, Tasnim Firdaus Mohamed Ariff, Desy Rosarina, Erry Yulian T. Adesta, Galang Persada Nurani Hakim, Nor Aiman Sukindar

“…With the same risk priority number (RPN) calculation, FMEA would be a ranking problem with the same RPN value; hence, we have a priority problem that is not critical but based on the highest value. …”
Get full text

Conjunctival Lymphangiogenesis Was Associated with the Degree of Aggression in Substantial Recurrent Pterygia by Wei Zhao, Tao Wang, Juan Deng, Lei Zhong, Weilan Huang, Shiqi Ling

“…Pterygium slices from each patient were immunostained with LYVE-1 monoclonal antibodies to identify lymphatic microvessels in order to calculate the lymphovascular area (LVA), the lymphatic microvessel density (LMD), and the lymphovascular luminal diameter (LVL). …”
Get full text

Fair allocation of fixed cost in one- and two-stage systems using data envelopment analysis by Faranak Hosseinzadeh Saljooghi, Ali reza Pishgooy, Farhad Hamidi

“…This method does not have the complexity of calculations of previous methods.Originality/Value: The results of the proposed method have been analyzed on real data, 29 branches of Iranian banks in a one-stage. …”
Get full text

Pemanfaatan Limbah Puntung Rokok sebagai Inhibitor Korosi pada Baja St40 Menggunakan Metode Microwave Assisted Extraction (MAE) di Lingkungan NaCl 3,56% by Ikhsan Akmal Alatif, Rahma Puspa Permatasari, Rahma Nurulgina, Zahrotul Filza Adzkia, Puri Andayani, Sabrina Aisyah Putri, Adinda, Dhyna Analyes Trirahayu, Kunlestiowati Hadiningrum

“…This study aims to determine the yield of cigarette butt waste extract, the content of cigarette butt waste extract produced using the MAE method qualitatively, determine the optimum conditions for the extraction process with the MAE method based on variations in microwave power of 150 and 300 watts and calculate the efficiency of corrosion inhibitors and the effect of compounds contained in cigarette butt waste extract in 3.56% NaCl environment. …”
Get full text

Parameter Analysis on Hardening Soil Model of Soft Soil for Foundation Pits Based on Shear Rates in Shenzhen Bay, China by Yanbin Fu, Siyue He, Sizhan Zhang, Yong Yang

“…The hardening soil (HS) model is the most commonly used constitutive models of soft soil of foundation pits of PLAXIS software in numerical analysis, and its parameters are prerequisite for accurate calculation. In this paper, relevant parameters of the HS model in Shenzhen Bay in China were studied through one-dimensional consolidation tests and triaxial shear tests. …”
Get full text

The Prevalence and Risk Factors of Gastric Polyp in Asymptomatic Patients Receiving Health Examination by Fu-Wei Wang, Su-Chi Young, Ru-Yih Chen, Kung-Hung Lin, Yan-Hua Chen, Ping-I Hsu, Hsien-Chung Yu

“…Their demographic data and medical history were collected, and the prevalence of gastric polyps was calculated. The risk factors of gastric polyps were identified by analyzing these data through univariate and multivariate logistic regression. …”
Get full text

Transition Metal(II) Complexes with Cefotaxime-Derived Schiff Base: Synthesis, Characterization, and Antimicrobial Studies by Aurora Reiss, Mariana Carmen Chifiriuc, Emilia Amzoiu, Cezar Ionuţ Spînu

“…Molecular structure of the Schiff base ligand and its complexes were studied using programs dedicated to chemical modeling and quantomolecular calculation of chemical properties. All the synthesized complexes were tested for in vitro antibacterial activity against some pathogenic bacterial strains, namely Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Bacillus subtilis, and Staphylococcus aureus. …”
Get full text

Où sommes-nous quand nous sommes à l’école ? by Philippe Foray

“…Thought of Hannah Arendt (and Paul Ricoeur) suggests another answer: school doesn’t belong only to one domain; she stands at the intersection of several (private, social, public). …”
Get full text

Cellulitis Caused by Hirudo orientalis Bites That Lead to an Allergic reaction by Mohsen Najjari, Rahmat Solgi, Amir Tavakoli Kareshk

“…Regularly, the urticarial papules are common, and itching lasts less than 24 h. …”
Get full text