Attendance Management System Using Face Recognition Method

When it comes to classroom management, the attendance check is a critical component. Time-consuming, particularly when it comes to open meetings, is checking attendance by calling names or by handing around a sign-in sheet to make it easier to commit fraud. An implementation of a real-time attendance check is described in this article in great detail facial recognition system and its outcomes. The system must be able to identify a student’s face in order for it to work first snap a photograph of the pupil and save it in a database as a reference for future use. During the event, there were students may be identified by using the webcam, which captures photos of their faces auto-detects faces and selects students with names that are most likely to match, and lastly, depending on the facial recognition findings, an excel file will be updated to reflect attendance. To identify faces in webcam footage, the system uses a pre-trained Haar Cascade model. As a result, a 128-bit FaceNet has been generated by training it to minimise the triplet loss. The dimensions of the facial picture. When two facial pictures have similar encodings If the two facial pictures are from the same student or different. Use of the system as part of a class, and the outcomes have been extremely positive. There has been a poll done to find out more about There are both advantages and disadvantages to using a college attendance system.

Expanding the Applicability of an Innovative Laccase TTI in Intelligent Packaging by Adding an Enzyme Inhibitor to Change Its Coloration Kinetics

Enzymatic time–temperature indicators (TTIs) usually suffer from instability and inefficiency in practical use as food quality indicator during storage. The aim of this study was to address the aforementioned problem by immobilizing laccase on electrospun chitosan fibers to increase the stability and minimize the usage of laccase. The addition of NaN3, as and enzyme inhibitor, was intended to extend this laccase TTI coloration rate and activation energy (Ea) range, so as to expand the application range of TTIs for evaluating changes in the quality of foods during storage. A two-component time–temperature indicator was prepared by immobilizing laccase on electrospun chitosan fibers as a TTI film, and by using guaiacol solution as a coloration substrate. The color difference of the innovative laccase TTI was discovered to be <3, and visually indistinguishable when OD500 reached 3.2; the response reaction time was regarded as the TTI’s coloration endpoint. Enzyme immobilization and the addition of NaN3 increased coloration Km and reduced coloration Vmax. The coloration Vmax decreased to 64% when 0.1 mM NaN3 was added to the TTI, which exhibited noncompetitive inhibition and a slower coloration rate. Coloration hysteresis appeared in the TTI with NaN3, particularly at low temperatures. For TTI coloration, the Ea increased to 29.92–66.39 kJ/mol when 15–25 μg/cm2 of laccase was immobilized, and the endpoint increased to 11.0–199.5 h when 0–0.10 mM NaN3 was added. These modifications expanded the applicability of laccase TTIs in intelligent food packaging.

Analysis of Low Power and High Speed Double Tail Comparator Using Gnrfet Technology

Moore’s guideline has been a fundamental benchmark for patterns in the locale of microelectronics and measurements preparing. It has played an instrumental position in driving the part financial aspects and downsizing of the component time frame has been the major system for improving the general execution of the gadget. in any case, as we hold to diminish, close to the nanometre routine, various elements like line region unpleasantness, burrowing outcomes, arbitrary dopant changes, fast channel results, and numerous others have a tendency to impact its working and thereupon, its rise as of intense quintessence to investigate other open door substances that may help intensify the soaking Moore’s guideline. some of the research is as of now going inside the zone and numerous open door advances like CNFETs, FINFETs, GNRFETs. Region sway transistors the utilization of Graphene Nano-Ribbons (GNRFETs) has developed as promising innovation as a result of their stunning supplier transport homes and capacity for huge scale preparing and creation. This paper investigates the GNRFETs inverter generally speaking execution with CMOS inverter at 32nm time hub. Reproductions recommend about 2.5x upgrades inside the proliferation dispense with and 2x enhancements inside the quality put-off item (PDP). what’s more improvement of results was gotten through different the kind of Nano-Ribbons together with the convey voltage. On different the broad kind of nano-ribbons, it has turned out to be set that, spread put off reductions, at the indistinguishable time as powerful power utilization will increment. principally based definitely at the derivation, the upgraded outcome altered into chose to be 15 nano-ribbon. The outcomes imply that that GNRFET is a promising open door for Si-CMOS, making it a splendid recommendation to help intensify soaking Moore’s law. Graphene is an exciting new fabric with radiant electric properties, for the most part inside the state of graphene nanoribbons. on this educational document, we inspect steel-oxide-semiconductor and graphene nanoribbon discipline- impact transistors and recommend the proceeded with utilization of MOSFETs through 2023. This archive fills in as a top-notch initial texture for people with a legacy in semiconductors who want to find out about graphene and GNRFETs.

PHRASEOLOGICAL UNITS OF MODERN ENGLISH WITH THE COMPONENT “TIME” IN THE FIFTIES-EIGHTIES AMERICAN NOVELS BY IRWIN SHAW

Введение. Исследуются фразеологические единицы с компонентом time в текстах литературных произведений известного американского писателя Ирвина Шоу (1913–1984). Цель – рассмотреть функционирование фразеологических единиц с компонентом time в англоязычном художественном тексте с помощью семантического и контекстуального анализа. Материал и методы. Материал исследования отбирался в романах: «Acceptable Losses» («Допустимые потери») (1982), «Bread Upon Waters» («Хлеб по водам») (1981), «Beggarman, Thief» («Нищий, вор») (1977), «Voices of a Summer Day» («Голоса летнего дня») (1965), «Lucy Crown» («Люси Краун») (1956), «The Troubled Air» («Растревоженный эфир») (1951). Использовался метод сплошной выборки, фразеологической идентификации и семантического анализа фразеологического значения в контексте. Результаты и обсуждение. Фразеологические единицы современного английского языка с компонентом time можно сгруппировать по семантическому значению. В материале исследования выделяется семь групп со значением: повторяемость (постоянно, часто, иногда), длительность (долго), временной отрезок (ожидание или пустая трата времени), временная точка (благоприятное время), временные отношения (последовательность, своевременность, одновременность), шкала времени (настоящее, прошлое, будущее) и субъективно оцениваемое время (приятное, неприятное). Фразоупотребления встречаются в узуальной и окказиональной форме. Среди прочих были рассмотрены следующие фразеологические единицы для упомянутых фразеосемантических групп: all the time, for the hundredth time, from time to time (повторяемость); half the time, take one’s time (длительность); a waste of time, stall for time, bide one’s time (временной отрезок); in one’s own time (временная точка); one thing at a time, it’s about time, at the same time (временные отношения); for the time being, at the time, for old times’ sake, in good time (шкала времени); have a good time, have a hard time, give smb a rough time (субъективно оцениваемое время). В контекстном употреблении зачастую раскрываются дополнительные оттенки значения фразеологической единицы. Заключение. Делаются наблюдения об особенностях реализации фразеологического значения в контексте. Результаты исследования могут применяться в спецкурсах, семинарах по фразеологической стилистике современного английского языка. Introduction. This article describes the use of phraseological units with the word component “time” on the basis of texts from the literary works of the American writer Irwin Shaw (1913–1984). Aim. To trace the usage of phraseological units with the component “time” in the context of literary texts with the help of semantic and contextual analysis. Material and methods. The research material includes several novels of the author of the fifties and eighties of the twentieth century: “Acceptable Losses” (1982), “Bread Upon Waters” (1981), “Beggarman, Thief” (1977), “Voices of a Summer Day” (1965), “Lucy Crown” (1956), “The Troubled Air” (1951). The method of phraseological semantic analysis was used as well as the method of phraseological identification. Results and discussion. The article considers phraseological contexts in detail concerning their semantics. Set expressions are distinguished by the following meaning: repeatability, duration, time interval, time point, time relations, time scale and subjectively estimated time. Within each group there is an additional separation by differential seme and examples of phraseological units with the discussed meaning. Repeatability (constantly, often, sometimes): all the time, for the hundredth time, from time to time. Duration (long): half the time, take one’s time. Time period (waiting or a waste of time): a waste of time, stall for time, bide one’s time. Time point (favorable time): in one’s own time. Temporary relations (simultaneity, sequence, at the time arranged): one thing at a time, at the same time, it’s about time. Timeline (present, past, future): for the time being, at the time, for old times’ sake, in good time. Subjectively estimated (pleasant or unpleasant): have a good time, have a hard time and give smb a rough time. Conclusion. Phraseological contexts are found in normal and occasional forms. The usage of phraseological units in speech exposes additional shades of meaning. The actual material and conclusions of this work can be applied in teaching special aspects of phraseological stylistics and the use of modern English set expressions in speech.

SEMANTICS OF PHRASEOLOGICAL UNITS WITH THE COMPONENT “TIME” IN THE NOVELS BY MARGARET DRABBLE

Введение. На материале текстов художественных произведений английской писательницы Маргарет Дрэббл прослеживается употребление фразеологических единиц с компонентом time. Цель – описать употребление фразеологических единиц современного английского языка с компонентом time в текстах романов М. Дрэббл, а также рассмотреть особенности авторского языка на отобранном материале. Материал и методы. Для выборки фразоупотреблений были взяты основные романы М. Дрэббл 1960–1970-х гг. и два современных романа: «Garrick Year» («Год Гарика», рус. пер. «Один летний сезон») (1964), «The Millstone» («Жернов») (1965), «Jerusalem the Golden» («Мой золотой Иерусалим») (1967), «The Needle’s Eye» («Игольное ушко») (1972), «The Realms of Gold» («Златые миры») (1975), «The Ice Age» («Ледниковый период») (1977), «The Sea Lady» («Морячка») (2006), «The Pure Gold Baby» («Золотой ребенок») (2013). Результаты и обсуждение. Подробно рассматриваются фразоупотребления относительно их семантики и стилистики. Отобранные фразеологические единицы можно сгруппировать по семантическому значению. Выделено семь групп устойчивых выражений со значением повторяемости, длительности, временного отрезка, временной точки, временных отношений, шкалы времени и субъективно оцениваемого времени. Внутри каждой группы идет дополнительное разделение по дифференциальной семе. Повторяемость: постоянно, часто, иногда, никогда. Длительность: долгая, очень долгая, короткая, очень короткая. Временной отрезок: определенного или неопределенного периода, характеризующийся деятельностью или состоянием. Временная точка: благоприятная, неблагоприятная. Временные отношения: начало / конец действия, одновременность, предшествование, последовательность, заблаговременность, своевременность и несвоевременность, почти поздно. Шкала времени: настоящее, прошлое, будущее. Субъективно оцениваемое время: долгое или короткое, приятное или неприятное. Заключение. Фразоупотребления встречаются в узуальной и окказиональной форме. Особенности авторского стиля особенно прослеживаются в окказиональных формах употребления. Результаты исследования могут применяться в преподавании такого особого аспекта, как использование устойчивых выражений современного английского языка в речи. Introduction. This article describes the use of phraseological units with the word component “time” on the basis of texts from the literary works of the English writer Margaret Drabble (1939). Aim and objectives. The article aims to describe the actual usage of modern English phraseological units with the component “time”. The author’s language within the scope of the chosen material is considered as well. Material and methods. The research material includes main novels of the author of the sixties and seventies of the twentieth century and two modern novels: “Garrick Year” (1964), “The Millstone” (1965) “Jerusalem the Golden” (1967), “The Needle’s Eye” (1972), “The Realms of Gold” (1975), “The Ice Age” (1977), “The Sea Lady” (2006), “The Pure Gold Baby” (2013). Results and discussion. The article considers phaseological contexts in detail concerning their semantics and style. Set expressions are distinguished by the following meaning: repeatability, duration, time interval, time point, time relations, time scale and subjectively estimated time. Within each group there is an additional separation by differential seme. Repeatability: constantly, often, sometimes, never. Duration: long, very long, short, very short. Time period: a certain or indefinite period, characterized by an activity or condition. Time point: favorable, unfavorable. Temporary relations: the beginning / end of an action, simultaneity, precedence, sequence, advance, at the time arranged, late and almost late. Timeline: present, past, future. Subjectively estimated time: long or short, pleasant or unpleasant. Conclusion. Phraseological contexts are found in normal and occasional forms. Features of the author’s style are especially evident in occasional forms of use. The actual material and conclusions of this work can be applied in teaching special aspects of phraseological stylistics and the use of modern English set expressions in speech.

Feel Thine Own Self – Mood Congruency Evaluation of Emotional State Adjectives

The goal of the study was to explore event-related potential (ERP) differences during the processing of emotional adjectives that were evaluated as congruent or incongruent with the current mood. We hypothesized that the first effects of congruence evaluation would be evidenced during the earliest stages of semantic analysis. Sixty mood adjectives were presented separately for 1,000 ms each during two sessions of mood induction. After each presentation, participants evaluated to what extent the word described their mood. The results pointed to incongruence marking of adjective’s meaning with current mood during early attention orientation and semantic access stages (the P150 component time window). This was followed by enhanced processing of congruent words at later stages. As a secondary goal the study also explored word valence effects and their relation to congruence evaluation. In this regard, no significant effects were observed on the ERPs; however, a negativity bias (enhanced responses to negative adjectives) was noted on the behavioral data (RTs), which could correspond to the small differences traced on the late positive potential.

An audit of transfusion reaction monitoring and reporting at a cancer hospital in Pakistan- a step towards hemovigilance

Objective: To monitor the frequencies of different adverse transfusion reactions and to assess the compliance of clinical staff with the process of sending proper transfusion reaction workup within the specified time. Methods: The retrospective audit was conducted at the blood bank of Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan, and comprised all transfusion reaction forms received from July 1, 2017, to June 30, 2018. The forms were analysed for type of blood component, time in which it was received by thw blood bank, whether or not the form was completely filled, whether or not all required samples were provided, and the type of reaction. Results: Of the 12,787 units dispensed and transfused, 50(0.39%) transfusion reactions were noted. Allergic was the most frequent type 24(48%). Red cells accounted for 38(76%) of the reactions. In 58(95%) cases, reaction forms were completely filled. Blood bags in 36(59%) and post-transfusion ethylenediaminetetraacetic acid samples in 35(57.3%) cases were received at blood bank within 2 hours of reaction. Conclusion: Incidence of transfusion reactions was found to be low as there was good compliance with procedures on the part of the clinical staff. Key Words: Transfusion reactions, Haemo-vigilance, Clinical audit.

Interfacing TTL and CMOS Logic Levels in the Laboratory

ABSTRACT Interconnectivity of electrical components, such as triggers and detectors, is intrinsic to operating time-sensitive experiments. As labs become more digitized, equipment integration and compatibility become larger factors in experimental setups. Complications can arise when instruments with different signal levels, or logic levels, are integrated because each instrument requires its own particular input signal, with a specific threshold voltage, to function. When incorrect logic levels are used or the delays in conversion are too long, these instruments are not properly triggered and the experiment becomes inoperable. To perform multi-component, time-sensitive experiments, a logic-level converter with minimal time delays is necessary. Commercial solutions, however, are not viable when the nature of the experiment is highly time-sensitive, such as in laser spectroscopy, because the delay on the signal conversion is several hundred nanoseconds and would result in missed events. In this paper, three different logic-level converter circuits are presented for conversion between the TTL and CMOS logic levels, the most commonly used logic levels in experimental applications, based on the concept of an emitter follower design that only produces a delay in the tens of nanoseconds. Circuits were developed for conversion from CMOS to TTL, from TTL to CMOS, and a TTL buffer circuit. These circuits allow for inter-conversion between the two most common logic families, TTL and CMOS, as well as buffering weak signals, to offer a simple, low-cost solution to synchronization in time-sensitive experimental setups.