Transformer Exchanging with Vacuum Electrical Switch

This paper presents investigation of conceivable transient overvoltage that can be produced amid vacuum electrical switch (VCB) operation at the association purpose of a photovoltaic power plant. Average exchanging occasion that is identified with VCB concerns stimulation and de-empowerment of emptied transformer. Nonetheless, at the common photovoltaic power plant the transformer is sustained by an inverter outfitted with LC (or LCL) channels that are important for constraint of music and swell in voltage and current. From the perspective of exchanging operations, the inductance and capacitance of the LV side associated channel influence the regular recurrence of the transformer, which is reflected by various transient framework reaction amid VCB working. In this article, research facility estimation of overvoltage produced amid dispersion transformer exchanging by methods for VCB is examined. Effect of the LC channel associated at the LV side on the overvoltage concealment was contemplated. EMTP-ATP recreations were directed with a specific end goal to confirm the likelihood of homeless people end by methods for extra arrangement associated RL gag at the transformer medium voltage side

Impact of lecturer's personal and impersonal facebook account access on students' perceived lecturers self-disclosure, students' emotional engagement, student-lecturer communication satisfaction, and academic performance

Facebook served as an excellent platform for students and lecturers to connect, with the rise of its use by academicians, given its positive features. Studies indicated the benefit of using Facebook in education. One significant issue regarding Facebook use in education is the role of lecturers’ self-disclosure in student learning. This self-disclosure can either be in the personal or impersonal mode of the lecturers’ Facebook account. While substantial studies examined how lecturers utilised Facebook in education, the impact of lecturer’s personal and impersonal Facebook account access on Students’ Perceived Intensity of Lecturers’ Self-Disclosure (SPILSD), Students’ Emotional Engagement (SEE), Student-lecturer Communication Satisfaction (SCS) and Students’ Academic Performances (SAP) were yet to be explored. Therefore, this study examined the level of SPILSD, SEE, SCS, and SAP factors on the personal and impersonal lecturers’ Facebook account. The study defined the pre-test and post-test difference before testing the hypotheses difference relating to these factors. This study used a Quasi-experimental research design, with a total of 120 students participated in the study. Participants were assigned into two groups with one group (60 students) connected to their lecturers’ personal Facebook account access. The other group (60 students) were connected to their lecturers’ impersonal Facebook account access. Participants filled out a self-administered questionnaire on week one (pre-test) and week fourteen (post-test) of the semester. The questionnaire contained questions on the SPILSD, SEE, SAP and SCS in terms of feedback and everyday conversation. This method was essential to acquire new knowledge on the Facebook platform and useful to establish an Emotion Response Theory (ERT). The results revealed that the level of SPILSD was more significant in the lecturers’ personal Facebook account compared to the impersonal account. Group analysis for the lecturers’ personal Facebook account showed a substantial difference in the level of SPILSD, SEE, SCS, and SAP. However, the lecturers’ impersonal Facebook account showed positive changes only in SPILSD, SEE, and SCS but not in SAP. Group analysis revealed that there is no impact on SPILSD, SEE, and SAP between lecturers’ personal and impersonal Facebook account, while positive changes were only found in SCS. This study contributed to the growing body of knowledge on Facebook utilisation in education by clarifying the association of lecturers’ personal and impersonal Facebook account with SPILSD, SAP, SCS, and SEE

Transformer Exchanging with Vacuum Electrical Switch

This paper presents investigation of conceivable transient overvoltage that can be produced amid vacuum electrical switch (VCB) operation at the association purpose of a photovoltaic power plant. Average exchanging occasion that is identified with VCB concerns stimulation and de-empowerment of emptied transformer. Nonetheless, at the common photovoltaic power plant the transformer is sustained by an inverter outfitted with LC (or LCL) channels that are important for constraint of music and swell in voltage and current. From the perspective of exchanging operations, the inductance and capacitance of the LV side associated channel influence the regular recurrence of the transformer, which is reflected by various transient framework reaction amid VCB working. In this article, research facility estimation of overvoltage produced amid dispersion transformer exchanging by methods for VCB is examined. Effect of the LC channel associated at the LV side on the overvoltage concealment was contemplated. EMTP-ATP recreations were directed with a specific end goal to confirm the likelihood of homeless people end by methods for extra arrangement associated RL gag at the transformer medium voltage side

Smart polymers for the controlled delivery of drugs – a concise overview

Smart polymers have enormous potential in various applications. In particular, smart polymeric drug delivery systems have been explored as “intelligent” delivery systems able to release, at the appropriate time and site of action, entrapped drugs in response to specific physiological triggers. These polymers exhibit a non-linear response to a small stimulus leading to a macroscopic alteration in their structure/properties. The responses vary widely from swelling/contraction to disintegration. Synthesis of new polymers and crosslinkers with greater biocompatibility and better biodegradability would increase and enhance current applications. The most fascinating features of the smart polymers arise from their versatility and tunable sensitivity. The most significant weakness of all these external stimuli-sensitive polymers is slow response time. The versatility of polymer sources and their combinatorial synthesis make it possible to tune polymer sensitivity to a given stimulus within a narrow range. Development of smart polymer systems may lead to more accurate and programmable drug delivery. In this review, we discuss various mechanisms by which polymer systems are assembled in situ to form implanted devices for sustained release of therapeutic macromolecules, and we highlight various applications in the field of advanced drug delivery

Smart polymers for the controlled delivery of drugs – a concise overview

AbstractSmart polymers have enormous potential in various applications. In particular, smart polymeric drug delivery systems have been explored as “intelligent” delivery systems able to release, at the appropriate time and site of action, entrapped drugs in response to specific physiological triggers. These polymers exhibit a non-linear response to a small stimulus leading to a macroscopic alteration in their structure/properties. The responses vary widely from swelling/contraction to disintegration. Synthesis of new polymers and crosslinkers with greater biocompatibility and better biodegradability would increase and enhance current applications. The most fascinating features of the smart polymers arise from their versatility and tunable sensitivity. The most significant weakness of all these external stimuli-sensitive polymers is slow response time. The versatility of polymer sources and their combinatorial synthesis make it possible to tune polymer sensitivity to a given stimulus within a narrow range. Development of smart polymer systems may lead to more accurate and programmable drug delivery. In this review, we discuss various mechanisms by which polymer systems are assembled in situ to form implanted devices for sustained release of therapeutic macromolecules, and we highlight various applications in the field of advanced drug delivery