An Improved MPPT Algorithm for PV Generation Applications Based on P-U Curve Reconstitution by Yaoqiang Wang, Meiling Zhang, Xian Cheng

“…Therefore, a maximum power point (MPP) tracking (MPPT) algorithm is essential for the photovoltaic generation system. However, the P-U curve changes dynamically with the variation of the environmental factors; here, the misjudgment may occur if a simple perturb-and-observe (P&O) MPPT algorithm is used. …”
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Issues with the Organic and Elemental Carbon Fractions in Recent U.S. Chemical Speciation Network Data by Philip K. Hopke, Yunle Chen, David Q. Rich, John G. Watson, Judith C. Chow

“…This factor is associated with aged secondary organic and inorganic species. The U.S. EPA changed the sampling and analytical protocols for its Chemical Speciation Network (CSN) in the 2007–2009 period to provide these well separated individual peaks in the thermogram for aerosol characterization, source apportionment, visibility, and health studies. …”
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COVID-19 and pediatric out-of-hospital cardiac arrest using U.S. registry database by Christopher Schmitt, Gary Beasley, Karine Guerrier, Jennifer Kramer, Maryam Y. Naim, Heather Griffis, Bryan McNally, Paul S. Chan, Rabab Al-Araji, Joseph Rossano

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Predviđanje razvoja povrtarstva u Republici Srpskoj (Forecasting of Vegetable Production in Republic of Srpska) by Beba Mutavdžic, Ljiljana Drinic, Nebojša Novković, Aleksandar Ostojić, Gordana Rokvic

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THE U.S. QUEST FOR NEW TECHOLOGICAL FOUNDATIONS OF MILITARY SUPERIORITY: DILEMMAS OF THE THIRD OFFSET STRATEGY by V. I. Bartenev

“…The conclusion postulates that the emergence of the TOS was determined by both an erosion of the U.S. military superiority and budget constraints, and, therefore, its content might change if budget austerity imperatives will stop dominating the DoD strategists' thinking. …”
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MODELING OF PLANT TISSUE GROWTH AND DEVELOPMENT WITH L-SYSTEMS by U. S. Zubairova, A. V. Penenko, S. V. Nikolaev

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Chatbot-delivered mental health support: Attitudes and utilization in a sample of U.S. college students by Gavin N. Rackoff, Zhenyu Z. Zhang, Michelle G. Newman

“…Methods Survey study of 428 U.S. university students who participated in early 2024, just over one year after the release of ChatGPT. …”
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Design of a Submarine Vehicle for Higher Natural Frequency Using U∗ Index Theory Approach by Weiyan Shang, Qingguo Wang

“…The natural frequency of a vehicle structure should be far higher than the road excitation frequency in order to avoid dynamic problems caused by structural resonance. …”
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Observations from the U.S. Federal Income Tax to Distinguish Between Measures of Progressivity and Redistributive Capacity by Timoty Mathews

“… This study provides insights on the attributes of a tax that are measured by two different classes of progressivity indices – those defined by Kakwani (1977), Suits (1977), Stroup (2005), and Mathews (2016) and those defined by Musgrave & Thin (1948) and Reynolds & Smolensky (1977). Index values are determined for the U.S. …”
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Conflicting stakes and governance relating to the co-management of salmon in the Columbia river basin (U.S.A.) by Nicolas Barbier 

“…In the U.S. portion of the Columbia Bassin, salmon populations are five times lower than 150 years ago. …”
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U.S.-UK Voting Cohesion in the United Nations General Assembly: Important Votes (2001–2019) by A. O. Mamedova

“…Bush and Donald Trump it was lower than during Barack Obama’s presidency. Despite the special relationship, the UK often aligns itself with the EU countries when voting in the UNGA. …”
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Political and Institutional Approaches to Advancing International Religious Freedom in the U.S. Foreign Policy in 1998–2020 by V. A. Shchipkov

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Associations of Serum Cystatin C, DNAm Cystatin C, Renal Function, and Mortality in U.S. Adults by Yu-Wei Fang, Wei-Chung Huang, Chikang Wang, Chien-Yu Lin

“…This study aimed to examine the associations between serum cystatin C, DNAmCystatinC, renal function, and their joint and independent relationships with mortality in U.S. adults. We analyzed data from 1642 participants aged 50 and older from the National Health and Nutrition Examination Survey (NHANES) 1999–2002, linked to mortality information from the National Center for Health Statistics (NCHS), with follow-up through 2019. …”
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Sources of FCNC in SU ( 3 ) C ⊗SU ( 3 ) L ⊗U ( 1 ) X Models by J. M. Cabarcas, J. Duarte, J.-Alexis Rodriguez

“…There are different models which are based on the gauge symmetry SU ( 3 ) C ⊗SU ( 3 ) L ⊗U ( 1 ) X (331), and some of them include exotic particles, and others are constructed without any exotic charges assigned to the fermionic spectrum. …”
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Research of Kinematic Parameter Calibration Method of 3-R2U2S Parallel Robot by Yuandong Wang, Jie Gao

“…Abstract The general methods of parameter calibration of parallel robot mechanism are analyzed， and a new parameter calibration method based on automatic cooperation principle for 3-R2U2S parallel robot is proposed. The principle is that all the influencing factors of positioning error are attributed to the change of robot mechanism parameters， and the comprehensive correction rod length influence factor including various error sources is obtained， then the more accurate kinematics inverse equation is finally obtained. …”
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Evolution of the U.S. Republican Party’s Foreign Policy Platform and Its Implementation Challenges (2000–2004) by K. K. Sukhoverkhov

“…Bush and shaped by influential conservative think tanks, embraced a strategy known as "compassionate conservatism." …”
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Reconstruction of U.S. Regional-Scale Soybean SIF Based on MODIS Data and BP Neural Network by YAO Jianen, LIU Haiqiu, YANG Man, FENG Jinying, CHEN Xiu, ZHANG Peipei

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Association between Healthy Eating Index-2015 total and metabolic associated fatty liver disease in Americans: a cross-sectional study with U.S. National Health and Nutrition Exami... by Genzhong Xu, Ermin Ma, Weitao Zhang, Bo Feng

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In vivo MRI visualization of growth and morphology in the orthotopic xenotrasplantation U87 glioblastoma mouse SCID model by E. L. Zavjalov, I. A. Razumov, L. A. Gerlinskaya, A. V. Romashchenko

“…The study of glioblastoma growth with T2-weighed images showed that a significant tumor development began not earlier than 3 weeks after cell culture intracranial injection and then the tumor grew exponentially. …”
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PM2.5 in Sri Lanka: Trend Analysis, Low-cost Sensor Correlations and Spatial Distribution by Ranil Dhammapala, Ashani Basnayake, Sarath Premasiri, Lakmal Chathuranga, Karen Mera

“…Abstract The South Asian island nation of Sri Lanka did not have any permanent PM2.5 monitors sharing data publicly in near-real-time until the U.S. Embassy installed a Beta Attenuation Monitor (BAM) in September 2017. …”
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