Md. Rabiul Islam

O estudo de natureza quantitativa e qualitativa. O investigador utilizou dados prim rios e secund rios para avaliar a situa o socioecon mica e de sa de dos idosos rurais. O investigador procurou descobrir as causas das mudan as familiares e identificar os problemas enfrentados pelos idosos. O estudo explorou o padr o de mudan a das fam lias rurais que s o afetadas negativamente pelos problemas de subsist ncia e sistema de apoio. As dimens es evidentes e ocultas deste problema que emergem neste estudo fornecer o aos decisores pol ticos informa es para lidar com o problema da velhice de forma eficaz. Neste estudo, o investigador elaborou algumas recomenda es com base nos resultados do estudo para o bem-estar dos idosos, que contribuir o para o desenvolvimento de conhecimentos para os decisores pol ticos e planeadores elaborarem pol ticas e programas sociais adequados para a melhoria da situa o geral do problema dos idosos. Por fim, o estudo ajudar investigadores, acad micos e leitores a abrir caminho para novas pesquisas sobre novas dimens es e dire es do problema da velhice.

Badanie ma charakter zar wno ilościowy, jak i jakościowy. Badacz wykorzystal dane pierwotne i wt rne do oceny sytuacji spoleczno-ekonomicznej i zdrowotnej os b starszych mieszkających na obszarach wiejskich. Badacz staral się ustalic przyczyny zmian w rodzinie i zidentyfikowac problemy, z jakimi borykają się osoby starsze. W badaniu przeanalizowano zmieniające się wzorce zachowań rodzin wiejskich, na kt re negatywny wplyw mają problemy związane z utrzymaniem i systemem wsparcia. Odkryte w badaniu jawne i ukryte aspekty tego problemu dostarczą decydentom informacji potrzebnych do skutecznego rozwiązania problem w związanych ze starzeniem się spoleczeństwa. W niniejszym badaniu badacz sformulowal kilka zaleceń dotyczących dobrostanu os b starszych w oparciu o wyniki badania, kt re przyczynią się do poszerzenia wiedzy decydent w i planist w, umożliwiając im opracowanie odpowiedniej polityki spolecznej i program w mających na celu poprawę og lnej sytuacji os b starszych. Wreszcie, badanie pomoże naukowcom, badaczom i czytelnikom utorowac drogę do dalszych badań nad nowymi wymiarami i kierunkami problemu starości.

Lo studio di natura sia quantitativa che qualitativa. Il ricercatore ha utilizzato dati primari e secondari per valutare la situazione socioeconomica e sanitaria degli anziani che vivono in zone rurali. Il ricercatore ha cercato di individuare le cause dei cambiamenti familiari e di identificare i problemi affrontati dagli anziani. Lo studio ha esplorato il modello mutevole delle famiglie rurali che sono influenzate negativamente dai problemi legati al sostentamento e al sistema di assistenza. Le dimensioni evidenti e nascoste di questo problema emerse nello studio forniranno ai responsabili politici gli strumenti per affrontare efficacemente il problema dell'invecchiamento. In questo studio, il ricercatore ha formulato alcune raccomandazioni basate sui risultati della ricerca per il benessere degli anziani, che contribuiranno a sviluppare le conoscenze necessarie ai responsabili politici e ai pianificatori per elaborare politiche e programmi sociali adeguati al miglioramento della situazione generale degli anziani. Infine, lo studio aiuter ricercatori, studiosi e lettori a spianare la strada a ulteriori ricerche sulle nuove dimensioni e direzioni del problema dell'invecchiamento.

Cette tude est la fois quantitative et qualitative. Le chercheur a utilis des donn es primaires et secondaires pour valuer la situation socio- conomique et sanitaire des personnes g es vivant en milieu rural. Il a cherch d terminer les causes des changements familiaux et identifier les probl mes auxquels sont confront es les personnes g es. L' tude a explor l' volution des structures familiales rurales, qui sont affect es par les probl mes li s aux moyens de subsistance et au syst me de soutien. Les dimensions manifestes et cach es de ce probl me qui ressortent de cette tude fourniront aux d cideurs politiques des l ments leur permettant de traiter efficacement le probl me du vieillissement. Dans cette tude, le chercheur a formul , sur la base des r sultats de l' tude, certaines recommandations pour le bien- tre des personnes g es qui contribueront d velopper les connaissances des d cideurs politiques et des planificateurs afin qu'ils laborent une politique sociale et des programmes appropri s pour am liorer la situation g n rale des personnes g es. Enfin, cette tude aidera les chercheurs, les universitaires et les lecteurs ouvrir la voie de nouvelles recherches sur les nouvelles dimensions et orientations du probl me du vieillissement.

Die Studie ist sowohl quantitativer als auch qualitativer Natur. Der Forscher hat sowohl Prim r- als auch Sekund rdaten verwendet, um die sozio konomische und gesundheitliche Situation lterer Menschen in l ndlichen Gebieten zu bewerten. Der Forscher hat versucht, die Ursachen f r den Wandel in den Familien zu ermitteln und die Probleme zu identifizieren, mit denen ltere Menschen konfrontiert sind. Die Studie hat die sich wandelnden Muster l ndlicher Familien untersucht, die von den Problemen des Lebensunterhalts und des Unterst tzungssystems negativ betroffen sind. Die offensichtlichen und verborgenen Dimensionen dieses Problems, die in dieser Studie deutlich werden, werden den politischen Entscheidungstr gern als Grundlage dienen, um das Problem des Alters wirksam anzugehen. In dieser Studie hat der Forscher auf der Grundlage der Studienergebnisse einige Empfehlungen f r das Wohlergehen lterer Menschen formuliert, die dazu beitragen werden, das Wissen der politischen Entscheidungstr ger und Planer zu erweitern, um eine angemessene Sozialpolitik und Programme zur Verbesserung der Gesamtsituation lterer Menschen zu entwickeln. Schlie lich wird die Studie Forschern, Wissenschaftlern und Lesern dabei helfen, den Weg f r weitere Forschungen zu neuen Dimensionen und Richtungen des Problems des Alters zu ebnen.

Permanent magnet synchronous motors (PMSMs) are popular in the electric vehicle industry due to their high-power density, large torque-to-inertia ratio, and high reliability. This book presents an improved field-oriented control (FOC) strategy for PMSMs that utilizes optimal proportional-integral (PI) parameters to achieve robust stability, faster dynamic response, and higher efficiency in the flux-weakening region. The book covers the combined design of a PI current regulator and varying switching frequency pulse-width modulation (PWM), along with an improved linear model predictive control (MPC) strategy. Researchers and graduate students in electrical engineering, systems and control, and electric vehicles will find this book useful. Features:• Implements evolutionary optimization algorithms to improve PMSM performance.• Provides coverage of PMSM control design in the flux-weakening region.• Proposes a modern method of model predictive control to improve the dynamic performance of interior PMSM.• Studies the dynamic performance of two kinds of PMSMs: surface-mounted and interior permanent magnet types.• Includes several case studies and illustrative examples with MATLAB®. This book is aimed at researchers, graduate students, and libraries in electrical engineering with specialization in systems and control and electric vehicles.

Permanent magnet synchronous motors (PMSMs) are popular in the electric vehicle industry due to their high-power density, large torque-to-inertia ratio, and high reliability. This book presents an improved field-oriented control (FOC) strategy for PMSMs that utilizes optimal proportional-integral (PI) parameters to achieve robust stability, faster dynamic response, and higher efficiency in the flux-weakening region. The book covers the combined design of a PI current regulator and varying switching frequency pulse-width modulation (PWM), along with an improved linear model predictive control (MPC) strategy. Researchers and graduate students in electrical engineering, systems and control, and electric vehicles will find this book useful. Features:• Implements evolutionary optimization algorithms to improve PMSM performance.• Provides coverage of PMSM control design in the flux-weakening region.• Proposes a modern method of model predictive control to improve the dynamic performance of interior PMSM.• Studies the dynamic performance of two kinds of PMSMs: surface-mounted and interior permanent magnet types.• Includes several case studies and illustrative examples with MATLAB®. This book is aimed at researchers, graduate students, and libraries in electrical engineering with specialization in systems and control and electric vehicles.

This book examines a number of topics, mainly in connection with advances in semiconductor devices and magnetic materials and developments in medium and large-scale renewable power plant technologies, grid integration techniques and new converter topologies, including advanced digital control systems for medium-voltage networks. The book’s individual chapters provide an extensive compilation of fundamental theories and in-depth information on current research and development trends, while also exploring new approaches to overcoming some critical limitations of conventional grid integration technologies. Its main objective is to present the design and implementation processes for medium-voltage converters, allowing the direct grid integration of renewable power plants without the need for step-up transformers.