186 research outputs found
Analyzing the Impact of M-Learning Reading TyT Test on Police Students
No full textEste proyecto de investigación investiga el impacto del M-learning en los entornos de enseñanza y aprendizaje de inglés como lengua extranjera (ILE) en Colombia, con un enfoque en la Escuela de Policía Provincia de Sumapaz “Intendente Maritza Bonilla Ruiz”. El objetivo principal es contribuir a una mejor comprensión del idioma inglés mientras se mejora la comprensión de lectura mediante el uso de la tecnología como fuente primaria de aprendizaje. El diseño de investigación involucró la recopilación de datos de 50 estudiantes que fueron el foco de la investigación, utilizando tecnologías móviles para simplificar las actividades de gestión de información, estrategias didácticas y aprendizaje de inglés. El diagnóstico del examen Saber TyT se utilizó para evaluar las habilidades lingüísticas iniciales y adquiridas de los estudiantes en inglés. Los resultados mostraron una mejora general en las puntuaciones de competencia en lengua inglesa durante el período 2020. El estudio concluye que el aprendizaje móvil tiene un impacto positivo en la enseñanza y el aprendizaje de ILE. Estos hallazgos tienen implicaciones para educadores y formuladores de políticas en Colombia, resaltando la necesidad de aprovechar la tecnología para proporcionar a los estudiantes los recursos necesarios para continuar desarrollando sus habilidades lingüísticas.This research project investigates the impact of M-Learning on the teaching and learning environments for English as a foreign language (EFL) in Colombia, with a focus on the Sumapaz Police Academy “Intendente Maritza Bonilla Ruiz”. The main objective is to contribute to a better understanding of the English language while enhancing reading comprehension through the use of technology as a primary source of learning. The research design involved collecting data from 50 students who were the focus of the research, using mobile technologies to optimize information management activities, instructional strategies, and English learning. The Saber TyT exam diagnostic was used to evaluate the initial and acquired language skills of students in English. The results showed a general improvement in English language proficiency scores during the 2020 period. The study concludes that mobile learning has a positive impact on EFL teaching and learning. These findings have implications for educators and policymakers in Colombia, highlighting the need to harness technology to provide students with the necessary resources to continue developing their language skills.Licenciado en Lengua Extranjera - InglésPregrad
An enclosed dust removal system with ducting
No full textTyt. z nagł.Pozostali autorzy artykułu: Sheng Xue, Weiming Chen, Gang Zhou.Bibliogr. s. [433].Aby uzyskać przebieg przepływu cząstek gazu na przodku mechanicznie kształtowanego chodnika przewozowego w kopalni podziemnej wykorzystującej system wentylacji kombinowanej i system natrysku rozpylającego do tłumienia pylenia przeprowadzono badania z wykorzystaniem modeli numerycznych. Dla celów symulacji użyto pakietu FLUENT - ogólnodostępnego systemu pomiaru dynamiki płynów w połączeniu z algorytmem SIMPLE. Wyniki modelu pokazują, że odpylanie winno koncentrować się na środkowej powierzchni przodka. Na podstawie uzyskanych wyników opracowano zamknięty system odpylania z kanalizacją. System przetestowano w kopalni z zadowalającym efektem.A numerical modeling study is undertaken to understand gas-solid particle flows at the face of a mechanically developing roadway of an underground coal mine which employs a force-exhaust auxiliary ventilation system and uses mist spray for dust suppression. The FLUENT, a commercial computational fluid dynamics (CFD) package is used with Semi Implicit Method for Pressure Linked Equations (SIMPLE) algorithm for simulation. The results of the modeling show that dust control should focus on the middle area of the face. Based on the results, an enclosed dust removal system with ducting was developed. The system was successfully trialed at an underground coal mine with a satisfactory result.Dostępny również w formie drukowanej.SŁOWA KLUCZOWE: chodnik, pyły, modelowanie numeryczne, zamknięty system odpylania. KEYWORDS: roadways, dusts, enclosed dust removal system, numerical modeling
Application of nitrogen injection displacement for fire extinguishment
No full textTyt. z nagł.Pozostali autorzy artykułu: Ruxiang Qin, Qinghua Chen, Guoshu Zhang.Bibliogr. s. [351].W niniejszym artykule opisano zastosowanie podstawowej teorii wypełniania zrobów azotem podczas gaszenia pożarów endogenicznych zaprezentowanej przez profesora Guoshu Zhang, jej zastosowanie w kopalni oraz weryfikację wyników za pomocą symulacji numerycznej i uzyskane efekty w związku z zastosowaniem tej technologii. Zaprezentowano szczegółowe zasady oraz poglądy na temat wypełniania zrobów azotem do zwalczania pożarów.The article introduced the basic theory of nitrogen injection displacement for fire extinguish, which is presented by Professor Guoshu Zhang, applied this technology in coal mine, and then verified the results through numerical simulation, the production got from the technology's application. Presented some new views in specific implementation of nitrogen injection displacement for fire extinguish.Dostępny również w formie drukowanej.SŁOWA KLUCZOWE: technologia ochrony przeciwpożarowej w szczelnych zrobach, technologia ochrony przeciwpożarowej metodą wtrysku gazów szlachetnych, technologia zwalczania pożarów za pomocą azotu, technologia separacji, nowe rozwiązania w technologii ochrony pożarowej. KEYWORDS: fire-prevented technology in sealed gob, fire-prevented technology by infusing inert gases, infusing-permuting nitrogen technology, separation technology, new development in fire-prevented technology
Context aware handover algorithms for mobile positioning systems
No full textTyt. z nagłówka.Pozostali autorzy art.: Thilek Silvadorai, Tan Chen-Wei, Sureswaran Ramadass, Toni Anwar.Bibliogr. s. 156-158.This work proposes context aware handover algorithms for mobile positioning systems. The algorithms perform handover among positioning systems based on important contextual factors related to position determination with efficient use of battery. The proposed solution is implemented in the form of an Android application named Locate@nav6. The performance of the proposed solution was tested in selected experimental areas. The handover performance was compared with other existing location applications. The proposed solution performed correct handover among positioning systems in 95 percent of cases studied while two other applications performed correct handover in only 50 percent of cases studied. Battery usage of the proposed solution is less than one third of the battery usage of two other applications. The analysis of the positioning error of the applications demonstrated that, the proposed solution is able to reduce positioning error indirectly by handing over the task of positioning to an appropriate positioning system. This kept the average error of positioning below 42.1 meters for Locate@nav6 while the average error for two other applications namely Google Latitude and Malaysia maps was between 92.7 and 171.13 meters.Dostępny również w formie drukowanej.KEYWORDS: handover among mobile positioning systems, power efficient mobile positioning, switching between indoor and outdoor positioning systems
Kontrowersje wokół koncepcji transgresyjnej Józefa Kozieleckiego
No full textTyt. z nagłówka.Dostępny również w formie drukowanej.ABSTRACT: Author formulates some remarks and conditions concerning on the J. Kozielecki’s conceptions. According to the author approaches to the axiological subjectivism for which values don’t exist as stable objective realities or as certain kind of axiological vitalism. Contrary to Kozielecki’s declaration this attitude approaches to certain type of reductional psychology
Piknicy, ultrasi i chuligani - wewnętrzne zróżnicowanie grupy subkulturowej kibiców piłkarskich w Polsce
No full textTyt. z nagłówka.Dostępny również w formie drukowanej.ABSTRACT: This article is a main part of lnternal differentiate of subculture group of football fans in Poland project. Author has tried to show how the subculture of football fans can be differentiate. Author has presented three different subgroups of Polish fans. It is very important to divide this subculture, because each subgroup has different mentality and style. That is why I have paid the most attention on this element
Elektroniczne usługi informacyjne typu pytanie-odpowiedź - światowe trendy i doświadczenia bibliotek
No full textThe article presents various types of electronic (virtual, digital) reference services offered by libraries around the world, from the simplest ones e.g. e-mail to most advanced services such as interactive ones based on chat technology. The author describes the operation of different applications. Special attention has been paid to Web contact center software. Some examples of international and regional collaborative live reference services have been presented. Standards, guidelines and models of the introduction of virtual reference services (e.g. those of IFLA and ALA) are also reviewed. Basing on literature review, the article presents some statistical data, results of a survey of digital reference services and some issues mentioned by practitioners
Existence of solution of sub-elliptic equations on the Heisenberg group with critical growth and double singularities
No full textTyt. z nagłówka.Bibliogr. s. 253-254.For a class of sub-elliptic equations on Heisenberg group HN with Hardy type singularity and critical nonlinear growth, we prove the existence of least energy solutions by developing new techniques based on the Nehari constraint. This result extends previous works, e.g., by Han et al. [Hardy-Sobolev type inequalities on the H-type group, Manuscripta Math.118 (2005), 35–252].Dostępny również w formie drukowanej.KEYWORDS: sub-elliptic equations, Heisenberg group, Least energy solutions
Patient reporting of complications after surgery: What impact does documenting postoperative problems from the perspective of the patient using telephone interview and postal questionnaires have on the identification of complications after surgery?
No full text© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. Objectives To identify the frequency of postoperative complications, including problems identified by patients and complications occurring after discharge from hospital. To identify how these impact on quality of life (QoL) and the patient's perception of the success of their treatment. Design Data from three prospective sources: Surgical audit, a telephone interview (2 weeks after discharge) and a patient-focused questionnaire (2 months after surgery) were retrospectively analysed. Setting Dunedin Hospital, Dunedin, New Zealand. Participants Of the 500 patients, 100 undergoing each of the following types of surgeries: Anorectal, biliary, colorectal, hernia and skin. Primary and secondary outcome measures The primary outcomes were complications and the 36-item Short Form Health Survey (SF-36). Secondary outcomes included the patient's ratings of their treatment and a questionnaire-derived patient satisfaction score. Results 226 patients reported a complication; there were 344 separate complications and 411 reports of complications (16% of complications were reported on more than one occasion). The audit, telephone interview and questionnaire captured 12.6%, 36.3% and 51% of the 411 reports, respectively. Patients with complications had a lower SF-36 Physical Composite Summary (PCS) score (48.5 vs 43.9, p=0.021) and a lower Patient Satisfaction Score (85.6 vs 74.6, p<0.001). Rating of information received, care received, symptoms experienced, QoL and satisfaction with surgery were all significantly worse for patients with complications. On linear regression analysis, surgical complications, American Society of Anaesthesiologists score and age all made a similar contribution to the SF-36 PCS score, with standardised beta coefficients between 0.19 and 0.21. Conclusions Following surgery, over 40% of patients experienced complications. The QoL and satisfaction score were significantly less than for those without complications. The majority of complications were diagnosed after discharge from hospital. Taking more notice of the patient perspective helps us to identify problems, to understand what is important to them and may suggest ways to improve perioperative care
Measuring fan speed using the impeller tip pressure method
No full textTyt. z nagł.Bibliogr. s. [215].Aby wykonać dokładny pomiar prędkości obrotowej wiatraka należy przeprowadzić test jego osiągów. Ponieważ istnieje związek pomiędzy częstotliwością zmian ciśnienia na końcówce wirnika i prędkością obracania wirnika, w niniejszym artykule zaproponowano nową metodę pomiaru prędkości obrotowej końcówki wirnika poprzez badanie pomiaru prędkości obrotowej wentylatora przeciwbieżnego. Przedstawiono również zastosowanie czujników ciśnienia, kart rejestracji danych oraz technologii programistycznych do pomiaru prędkości wskazań zawartych w poprzednich systemach automatycznego testowania osiągów wentylatora. Porównanie wyników prób terenowych dowodzi skuteczności tej metody.The accurate measurement of fan speed is impact in the fan performance test experiments. As there is some relationship between the impeller tip pressure pulse frequency and speed of the impeller, the paper proposed a new impeller tip speed measurement method through counter-rotating fan speed measurement studies. The use of pressure sensors, data acquisition cards and programming technologies to measure the speed of reading directly integrated into the previous fan performance automated test systems was also presented. This proves that this is an effective method by comparing the results of the field tests.Dostępny również w formie drukowanej.SŁOWA KLUCZOWE: końcówka wirnika, ciśnienie na końcówce wirnika, zmiany ciśnienia, prędkość obrotowa wentylatora. KEYWORDS: impeller tip, tip-pressure, pressure pulsation, fan speed
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