Profil penulis
LILI
98 karya publik ditemukan.
2026: 12025: 42024: 42023: 32022: 22021: 22020: 32019: 42018: 182017: 502016: 5
Bermain Berbasis Kecerdasan Jamak
Strategi Pengembangan Bahasa pada Anak
Komunikasi Antar Personal
Manajemen Komunikasi dan Pemasaran
Corso di lingua paleoslava. Grammatica
Dumannu a lu me specchiu. Poesie in lingua siciliana
Integrasi nasional
Conflict and stability in national integration of Indonesia; papers of a seminar.
Al-harakah al-kurdiyah fi al-'asr al-hadith
Penegakan HAM dalam perspektif masyarakat di daerah
Human rights enforcement from the regional perspectives in Indonesia; research report in North Sumatera and South Sulawesi Provinces.
Pengantar ilmu pemerintahan
Tata Bhs Belanda:Lengkap,Mudah&Praktis
Anak rantau
Komunikasi Serba Ada Serba Makna
Komunikasi telah menjadi bagian tak terpisahkan dari kehidupan manusia di mana pun berada. Bahkan dengan segala atributnya, komunikasi sudahÊ menjadi gaya hidup (life style). Ilmu komunikasi dan praksis komunikasi itu sendiri mampu menembus ruang dan waktu, menyesuaikan dengan batas identitas manusia dan kemanusiaan dalam berbagai aspek kehidupan sosiokultural. Pesatnya kemajuan teknologi komunikasi-terutama pada aspek sarana, prasarana, dan bahkan pada ilmu komunikasi itu sendiri-tampaknya belum dibarengi dengan pemenuhan buku-buku referensi ilmiah maupun praktisnya. Untuk menjawab tantangan dan tuntutan ini, buku Komunikasi: Serba Ada Serba Makna ini hadir sebagai referensi bermutu bagi kalangan dosen, bacaan wajib bagi para mahasiswa Ilmu Komunikasi, Sosial, dan Politik, dan tentu saja praktisi komunikasi, agar seluruh seluk-beluk epistemologi, ontologi, dan teknologi komunikasi dapat dipahami secara utuh. *** Persembahan penerbit Kencana (PrenadaMedia)
A Study Using Different Types of Fumed Silica to Modify the Flowablity, Wettability and Surface Free Energy of a Model Cohesive Powder
The objectives of this study were to investigate the improvement on flowability of a model cohesive powder using two different types of fumed silica mixed by the dry coating method "mechanofusion" and to explore the relationship between flowability and surface free energy and/or wettability. The first aim was to find the optimum conditions for improving the flowability of a model cohesive powder, glass microspheres (DMV ~ 3.5 μm), by mechanofusion with fumed silica. Conventional blending using tumbling was done as a comparison. Mechanofusion was conducted at three different speeds 1500, 3000 and 4500 rpm and at three concentrations of hydrophobic Aerosil®R972 (1%, 3% and 5% w/w) for 10 minutes, while conventional blending was performed at 72 rpm for 30 minutes. It was revealed that the optimum concentration to improve flowability was 1% w/w Aerosil®R972 for all processes utilized. Increasing the concentration of the fumed silica decreased the flowability at all speeds. This indicates the enhancement of flowability of this model cohesive powder depends on the concentration of guest particles. The influence of different speeds to the flowability was observed upon the increasing concentration of Aerosil®R972 at 3% and 5% w/w. Mechanofusion was found to be a more effective mixing method compared to tumbling mixing presumably due to the higher energy applied that can de-agglomerate the cohesive microspheres. The second aim of this thesis was to determine the mechanism of action of the fumed silica in improving cohesive powder flow and to investigate the relationship between flowability and surface free energy and/or wettability. Hydrophilic fumed silica Cab-o-sil®M-5, which has the same particles size as Aerosil®R972, was used as a comparison. 1% w/w Cab-o-sil®M-5 failed to improve the flow of particles, whereas the same concentration of Aerosil®R972 did. Powder wettability and surface free energy were derived from contact angle measurements of uncoated and coated particles. The capillary rise technique was used to measure powder contact angles. The water contact angle increased when the glass microspheres were coated with hydrophobic Aerosil®R972, whereas it decreased when coated with hydrophilic Cab-o-sil®M-5. However, the 1-bromonaphthalene contact angle increased after coating with both types of fumed silica. The contact angle data was used to calculate the surface free energy of uncoated and coated particles. A decrease in dispersive and polar components of surface free energy was found in particles coated with hydrophobic fumed silica, while the surface free energy of particles coated with hydrophilic fumed silica reached the highest value. Particles with higher surface free energies had poorer flow than particles with lower surface free energies. Similarly, particles with a water contact angle less than 90° had lower flowability than particles with a water contact angle higher than 90°. Therefore, this study found that the improvement of flowability of micronized cohesive particles can be achieved by mechanofusion provided the chosen guest particle has relatively low surface free energy and/or is hydrophobic. The outcomes of this thesis present an enhanced better understanding of improving the flowability of a cohesive powder using fumed silica. These findings may have future value for the development of improved solid formulation of pharmaceutical preparations with the active pharmaceutical ingredients (APIs) in micron size.
Teacher Training and Effective Pedagogy in the Context of Student Diversity
The purpose of this volume is twofold. First, the book attempts to initiate a researchbased dialogue from a variety of perspectives specifically about teacher training and teaching in the context of student linguistic and cultural diversity; and, second, to cast a wide net over three major areas of professional development that have the potential to impact on teacher quality and on the educational services provided to ELLs at all levels of instruction. This book represents a first attempt to a quiet revolution going on in teacher education (Johnson, 2000). It allows the reader to uncover research activities and experiences that constitute individual teacher education program initiatives. A revolution, because it is stirring the very essence of what stands at the core of teacher education, a core that has long been based more on training to teach monolingual English speaking students and less on teaching ELLs, their first and second language development, using their bilingualism to teach academics, and on the process of becoming an effective teacher of ELLs. This stateoftheart review brings together research on effective pedagogy and teacher training. The nine feature chapters are directly concerned with effective new structures and practices for professional development and are presented in a framework that considers a wide spectrum of topics to address issues such as: what teachers need to understand about English language learners, what kind of professional experiences are likely to facilitate those understandings, and what kinds of teacher education programs and school settings are able to support their ongoing learning. The authors also discuss the implications of their work for helping English language learners connect and benefit from school from the points of view of (1) school reform, (2) teachers’ bilingual proficiencies, (3) teachers’ knowledge and beliefs, and (4) teacher training programming and sustainability.