Solar cell anomaly detection method and apparatus

A method is provided for detecting cracks and other imperfections in a solar cell, which includes scanning a narrow light beam back and forth across the cell in a raster pattern, while monitoring the electrical output of the cell to find locations where the electrical output varies significantly. The electrical output can be monitored on a television type screen containing a raster pattern with each point on the screen corresponding to a point on the solar cell surface, and with the brightness of each point on the screen corresponding to the electrical output from the cell which was produced when the light beam was at the corresponding point on the cell. The technique can be utilized to scan a large array of interconnected solar cells, to determine which ones are defective

ДОСЛІДЖЕННЯ СТАНУ ЗДОРОВ’Я НАСЕЛЕННЯ – МОЖЛИВОСТІ ДЛЯ РОЗВИТКУ СВІТОВОЇ СПІЛЬНОТИ І ПРОФЕСІОНАЛІВ ІЗ ГРОМАДСЬКОГО ЗДОРОВ’Я

The aim of the work. Cooperation between MacEwan University and I. Horbachevsky Ternopil National Medical University in the realization of the educational programme of Public Health. Materials and Methods. 23 students of the MacEwan University Nursing Faculty (including Canada, Ghana, Nigeria, and India) spent one week at I. Horbachevsky Ternopil National Medical University (TNMU). The work of students and teachers was focused on interactive learning of questions of global/planetary health issues and included flipped classroom format, seminars, team-based learning and field clinics coordinated by MacEwan faculty members in partnership with the TNMU members. Results and Discussion. Cooperation between TNMU and MacEwan University corresponds to the strategy of the MacEwan University Nursing Faculty: Nurses making a difference in the health of global communities and mission: transformative learning in nursing education and professional practice. The educational course was organized to the students to align with three essential components of planetary health: relationality, sustainability, and ways of knowing. Through interactive learning in an international setting, students developed a shared understanding of how people relate to each other and to their environments, compared Canadian and Ukrainian approaches to the Sustainable Development Goals, and created space for understanding different ways of knowing and how these enhance health and wellbeing. Students visited a variety of health care facilities, including pediatric clinics, mental health hospital, HIV clinic, perinatal centre, orphanages, and rehabilitation centres. Conclusions. Co-creation of the program, and involving Ukrainian students offers opportunities to examine and change nursing education and professional practice. The face-to-face format of the trip is invaluable in enhancing emotional and informal learning as well as developing capacity as global citizens. The course provides an excellent foundation for students who wish to pursue graduate studies in global health either in Nursing or in Public Health.Мета роботи. Розвиток співпраці між університетом МакЮена (Канада) та Тернопільським національним медичним університетом імені І. Я. Горбачевського МОЗ України в рамках у реалізації освітньої програми охорони здоров’я. Матеріали і методи. 23 cтуденти медсестринського факультету університету МакЮена (включаючи студентів із Канади, Гани, Нігерії та Індії) провели один тиждень у Тернопільському національному медичному університеті імені І. Я. Горбачевського МОЗ України. Робота студентів і викладачів була зосереджена на інтерактивному навчанні з питань глобальних/планетарних проблем здоров’я та включала перевернутий формат аудиторії, семінари, командне навчання та польові клініки, координовані членами факультету МакЮена у партнерстві з викладачами Тернопільського національного медичного університету імені І. Я. Горбачевського МОЗ України. Результати й обговорення. Співпраця між Тернопільським національним медичним університетом імені І. Я. Горбачевського МОЗ України та університетом МакЮена відповідає стратегії діяльності медсестринського факультету університету МакЮена: медсестри, які впливають на здоров’я світової спільноти та виконують важливу місію: транс­формаційне навчання та впровадження знань у професійну практику. Навчальний курс, який представили студентам, був організований з метою узгодження з трьома важливими складовими здоров’я на планеті: відносністю, стійкістю та способами пізнання. Завдяки інтерактивному навчанню в міжнародному середовищі, студенти виробили спільне розуміння того, як люди ставляться один до одного та до свого оточення, порівняли канадський та український підходи до цілей сталого розвитку та створили простір для розуміння різних способів пізнання та як вони зміцнюють здоров’я і добробут. Учасники відвідали різноманітні заклади охорони здоров’я, включаючи дитячі клініки, лікарні психічного здоров’я, клініку ВІЛ, перинатальний центр, дитячі будинки та реабілітаційні центри. Висновки. Співпраця у реалізації програми дає можливість вивчити та змінити освіту медсестер та їх професійну практику. Формат поїздки віч-на-віч є неоціненним для підвищення неформального навчання, а також для розвитку потенціалу особистості у світі. Курс є чудовою основою для студентів, які бажають продовжити навчання в університеті, вивчаючи основи здоров’я або в галузі медсестринства, або в галузі охорони здоров’я

Machine Learning based tool for CMS RPC currents quality monitoring

The muon system of the CERN Compact Muon Solenoid (CMS) experiment includes more than a thousand Resistive Plate Chambers (RPC). They are gaseous detectors operated in the hostile environment of the CMS underground cavern on the Large Hadron Collider where pp luminosities of up to $2\times 10^{34}$ $\text{cm}^{-2}\text{s}^{-1}$ are routinely achieved. The CMS RPC system performance is constantly monitored and the detector is regularly maintained to ensure stable operation. The main monitorable characteristics are dark current, efficiency for muon detection, noise rate etc. Herein we describe an automated tool for CMS RPC current monitoring which uses Machine Learning techniques. We further elaborate on the dedicated generalized linear model proposed already and add autoencoder models for self-consistent predictions as well as hybrid models to allow for RPC current predictions in a distant future

Search for a vector-like quark T′ → tH via the diphoton decay mode of the Higgs boson in proton-proton collisions at s \sqrt{s} = 13 TeV

A search for the electroweak production of a vector-like quark T′, decaying to a top quark and a Higgs boson is presented. The search is based on a sample of proton-proton collision events recorded at the LHC at = 13 TeV, corresponding to an integrated luminosity of 138 fb−1. This is the first T′ search that exploits the Higgs boson decay to a pair of photons. For narrow isospin singlet T′ states with masses up to 1.1 TeV, the excellent diphoton invariant mass resolution of 1–2% results in an increased sensitivity compared to previous searches based on the same production mechanism. The electroweak production of a T′ quark with mass up to 960 GeV is excluded at 95% confidence level, assuming a coupling strength κT = 0.25 and a relative decay width Γ/MT′ < 5%

Measurement of the Higgs boson inclusive and differential fiducial production cross sections in the diphoton decay channel with pp collisions at s \sqrt{s} = 13 TeV

The measurements of the inclusive and differential fiducial cross sections of the Higgs boson decaying to a pair of photons are presented. The analysis is performed using proton-proton collisions data recorded with the CMS detector at the LHC at a centre-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 137 fb$^{−1}$. The inclusive fiducial cross section is measured to be $σ_{fid}$=73.4$^{+5.4}_{−5.3}$(stat)$^{+2.4}_{−2.2}$(syst) fb, in agreement with the standard model expectation of 75.4 ± 4.1 fb. The measurements are also performed in fiducial regions targeting different production modes and as function of several observables describing the diphoton system, the number of additional jets present in the event, and other kinematic observables. Two double differential measurements are performed. No significant deviations from the standard model expectations are observed

Search for new physics in multijet events with at least one photon and large missing transverse momentum in proton-proton collisions at 13 TeV

A search for new physics in final states consisting of at least one photon, multiple jets, and large missing transverse momentum is presented, using proton-proton collision events at a center-of-mass energy of 13 TeV. The data correspond to an integrated luminosity of 137 fb−1, recorded by the CMS experiment at the CERN LHC from 2016 to 2018. The events are divided into mutually exclusive bins characterized by the missing transverse momentum, the number of jets, the number of b-tagged jets, and jets consistent with the presence of hadronically decaying W, Z, or Higgs bosons. The observed data are found to be consistent with the prediction from standard model processes. The results are interpreted in the context of simplified models of pair production of supersymmetric particles via strong and electroweak interactions. Depending on the details of the signal models, gluinos and squarks of masses up to 2.35 and 1.43 TeV, respectively, and electroweakinos of masses up to 1.23 TeV are excluded at 95% confidence level

Search for Higgs Boson Decay to a Charm Quark-Antiquark Pair in Proton-Proton Collisions at √s = 13 TeV

A search for the standard model Higgs boson decaying to a charm quark-antiquark pair, H→c¯c, produced in association with a leptonically decaying V (W or Z) boson is presented. The search is performed with proton-proton collisions at √s=13  TeV collected by the CMS experiment, corresponding to an integrated luminosity of 138  fb−1. Novel charm jet identification and analysis methods using machine learning techniques are employed. The analysis is validated by searching for Z→c¯c in VZ events, leading to its first observation at a hadron collider with a significance of 5.7 standard deviations. The observed (expected) upper limit on σ(VH)B(H→c¯c) is 0.94 (0.50+0.22−0.15)pb at 95% confidence level (C.L.), corresponding to 14 (7.6+3.4−2.3) times the standard model prediction. For the Higgs-charm Yukawa coupling modifier, κc, the observed (expected) 95% C.L. interval is 1.1<|κc|<5.5 (|κc|<3.4), the most stringent constraint to date

Measurement of the cross section of top quark-antiquark pair production in association with a W boson in proton-proton collisions at s \sqrt{s} = 13 TeV

The production of a top quark-antiquark pair in association with a W boson $(t\bar{t}W)$ is measured in proton-proton collisions at a center-of-mass energy of 13 TeV. The analyzed data was recorded by the CMS experiment at the CERN LHC and corresponds to an integrated luminosity of 138 fb$^{−1}$. Events with two or three leptons (electrons and muons) and additional jets are selected. In events with two leptons, a multiclass neural network is used to distinguish between the signal and background processes. Events with three leptons are categorized based on the number of jets and of jets originating from b quark hadronization, and the lepton charges. The inclusive $(t\bar{t}W)$ production cross section in the full phase space is measured to be 868 ± 40(stat) ± 51(syst) fb. The $(t\bar{t}W)+$ and $(t\bar{t}W)−$ cross sections are also measured as 553 ± 30(stat) ± 30(syst) and 343 ± 26(stat) ± 25(syst) fb, respectively, and the corresponding ratio of the two cross sections is found to be 1.61±0.15(stat)$^{+0.07}_{−0.05}$(syst). The measured cross sections are larger than but consistent with the standard model predictions within two standard deviations, and represent the most precise measurement of these cross sections to date