5,914 research outputs found
Franny Choi, 41st Annual ODU Literary Festival
No full textFranny Choi is a queer, Korean-American poet, playwright, teacher, organizer, pottymouth, GryffinClaw, and general overachiever. She is the author of Floating, Brilliant, Gone (2014), and a chapbook, Death by Sex Machine (2017). She has received awards from the Poetry Foundation and the Helen Zell Writers Program, as well as fellowships from the Vermont Studio Center and the Rhode Island State Council on the Arts. Her poems have appeared in journals including Poetry magazine, American Poetry Review, New England Review, and her work has been featured by the Huffington Post, PBS NewsHour, and Angry Asian Man
Compatibility Choices in the Consumer Online Service Industry
No full textIn the information and telecommunications industry, among others, various kinds of innovative products are being launched. Due to the effect of network externalities on players* performances, the importance of the choice whether to make these products compatible with others cannot be overemphasized. This is also true of the consumer online service industry. Incumbent X.25-based providers are competing with each other and with other entrant Web-based providers and at the same time, trying to make their products compatible with others. Using a game-theoretic model, this paper examines how incumbent and entrant carriers strategically choose the compatibilities of their products. The welfare implications are also presented
Liner for Shaped-Charge Munitions
No full textIn 1977 three National Bureau of Standards (NBS) resident guest scientists from the Army Picatinny Arsenal (Henry J. Prask, Chang-Sun Choi, and Sam F. Trevino) used the neutron diffraction facilities at the NBS Research Reactor to make the first non-destructive characterization of texture as a function of depth in a metallurgical specimen. This and related work by the Army group at the NBS Reactor showed that not only texture but also residual strains and stresses could be depth-profiled non-destructively using neutron diffraction. Residual strains and stresses add to externally-applied stresses, increasing or decreasing the effective strength of materials. Today every major neutron research center in the world has a neutron diffraction facility for determination of residual stress in engineering components using the technique pioneered by Prask, Choi, and Trevino. While originally this technique was used to study the properties of shaped-charge munitions for the Army (this copper liner for a Shaped-Charge Munitions was used in their NBS experiments, but never received neutron exposure), the technique is now commonly used for many civilian applications including: The effect on stresses of bending welded vs. extruded tubing; characterization of stresses resulting from different methods of railroad-rail fabrication; characterization of stresses around welds in railroad tank cars carrying hazardous materials; determination of changes in residual stresses in induction-hardened auto-axles and the correlation with fatigue life; characterization of stresses in a ring/plug primary standard for testing other stress-measurement techniques; characterization of residual stresses in aircraft components; characterization of stresses to improve welding technology; determination of stresses in thermal-spray coatings; confirmation of stress relief by the ultrasonic impact method; characterization of stresses produced by a new welding technique: Friction Stir Welding; reducing spring-back stresses in stamped sheet metal for automobiles; residual stresses in new composites; residual stress measurement in coil, linepipe and girth welded pipe.10 x 10 x 10 c
Varietal Evaluation of Pak Choi (Brassica rapa subsp. Chinensis) under Agro-climatic Conditions of Prayagraj, India
No full textA study was conducted on the Varietal Evaluation of Pak Choi using ten different varieties at the Horticultural Farm, Department of Horticulture, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj (Uttar Pradesh). This study was carried out to determine the most suitable cultivar of Pak Choi under the agro-climatic conditions of Prayagraj during the winter growing season in 2022. The observations were recorded on various growth and yield contributing characters. At the end of the research, it is evident that Pak Choi White Stem was found to be superior on the basis of growth, having the maximum plant height (22.57cm) and gross weight (133.75g). In terms of yield/ha (q), Pak Choi White Stem (70.67) and Desi Pak Choi (69.22) was found to be superior. In terms of economics, the maximum gross return per hectare was obtained by Pak Choi White Stem i.e. 212010 INR followed by Desi Pak Choi i.e.,207660 INR
Cu/SnAg double bump flip chip assembly as an alternative of solder flip chip on organic substrates for fine pitch applications
No full textThis work was supported by the Korea Materials &
Components Industry Agency (KMAC), Korea Science and
Engineering Foundation. We would like to thank to Mr. H. S.
Jang and Mr. S. Y. Choi of Sonix Korea for SAM analysis
and technical discussion and appreciate KBSI (Korea Basic
Science Institute) for SEM and EPMA analysis
Pengaruh Zeolit Terhadap Kualitas Pupuk Kandang Dan Pertumbuhan Tanaman Choi-Sam (Brassicca Chinellsis) Pada Latosol Gadog
No full textIndonesia kaya akan deposit zeolit sehingga memiliki. Peluang pemanfaatan yang besar termasuk pada bidang pertanian. Salah satu prospek pemanfaatan zeolit adalah sebagai penyerap bau kotoran ayam. Pemanfaatan zeolit sebagai penyerap bau kotoran ayam pada skala besar mungkin membutuhkan biaya yang tidak sedikit. Zeolit memiliki sifat khas seperti nilai kapasitas tukar kation (KTK) yang tinggi, mampu menyerap air, serta dapat menyerap amoniak yang dilepaskan selama" proses dekomposisi bahan organik. Berdasarkan sifat inilah diharapkan zeolit mampu meningkatkan kualitas pupuk kandang sehingga memberikan kompensasi terhadap pengeluaran penggunaan zeolit sebagai bahan penyerap bau. Penelitian ini bertujuan untuk mengetahui kualitas pupuk kandang yang dicampur dengan zeolit dan pengaruhnya terhadap produksi (bobot kering) tanaman Choi-sam (Brassicca chinensis) pada tanah Latosol Gadog. Penelitian ini dilakukan di rumah kaca, analisis tanah dan pupuk kandang dilaklukan di Laboratorium Kimia Tanah, Jurusan Tanah, Fakultas Pertanian, IPB Bogar. Pelaksanaannya dimulai pada bulan Februari sampai dengan bulan April 1998. Penelitian ini disusun menurut Rancangan Acak Lengkap (RAL) dengan 3 ulangan. Tujuh macam perlakuan yang diberikan yaitu : 1) Kotoran ayam murni (KA); 2) Kotoran ayam ditambah zeolit 20% (ZI); 3) Kotoran ayam ditambah zeolit 40% (Z2); 4) Kotoran ayam ditambah zeolit 60% (Z3); 5) Kotoran ayam ditambah sekam 10% (SI); 6) Kotoran ayam ditambah sekam 20% (S2); 7) Kotoran ayam ditambah sekam 30% (S3). Parameter yang diamati untuk pupuk kandang : C-organik, N-total, P-total dan K-total ; sedangkan untuk tanaman : bobot kering, tinggi tanaman, panjang daun dan lebar daun. Selain itu dilakukan juga analisis beberapa sifat kimia tanah setelah panen yaitu : N-total, P-tersedia, K-tersedia dan KTK tanah. Hasil penelitian menunjukkan bahwa perlakuan zeolit menurunkan kandungan C-organik, N-total, P-total dan K-total pupuk kandang. Namun demikian, jika pupuk kandang tersebut dihitung berdasarkan berat kotoran ayam yang sarna, perlakuan zeolit nyata meningkatkan kandungan N-total dan K-total pupuk kandang, sedangkan P-total cenderung menurun dan C-organik tetap. Perlakuan sekam menurunkan kandungan N-total, P-total dan K-total pupuk kandang dan meningkatkan C-organik pupuk kandang. Berdasarkan berat kotoran ayam yang sama, perlakuan sekam nyata meningkatkan C-organik, dan cenderung meningkatkan P-total dan K-total PuPuk kandang. Pupuk kandang hasil perlakuan zeolit meningkatkan bobot kering, tinggi tanaman, panjang daun dan lebar daun tanaman Choi-sam. Selain itu penambahan zeolit pada pupuk kandang yang kemudian diaplikasikan ke tanah memberikan fungsi yang sama dengan pemberian zeolit sebagai amandemen tanah
전이금속 촉매에 의한 디프로파길 말로닉산 유도체들과 기프로파길 페닐 아민의 고리화 중합
No full text학위논문(박사) - 한국과학기술원 : 화학과, 1990.2, [ ix, 87 p. ]This dissertation deals with the cyclopolymerization of dipropargyl derivatives containing functional groups such as ester, carboxylic acid and amine. In the polymerization of these dipropargyl derivatives, was more effective catalyst than , especially gave no polymer in the polymerization of dipropargyl malonic acid. n- exhibited good cocatalytic activity in the polymerization of dipropargyl malonic acid derivatives. On the other hand, was very effective cocatalyst in the polymerization of dipropargyl phenylamine by . The spectral datas and solubility behavior of the resulting cyclopolymers supported that these polymers possesses polyene structure having cyclic recurring unit in the polymer backbone. The cyclopolymers prepared in this study were mainly amorphous. The electrical conductivities of -doped polymers were in the range of Scm. The poly(diethyl dipropargylmalonate) have high molecular weight(Mn: 127100) and good film forming property.한국과학기술원 : 화학과
Synthesis and polymerization of metal salt monomers
No full text학위논문(석사) - 한국과학기술원 : 화학과, 1978.2, [ [iii], 38 p. ]분자내에 금속염을 포함한 이온결합을 형성하고 있는 Calcium 및 Magnesium 과 Copper-PHB 와 Calcium 및 Magnesium-maleate 를 각각 합성하였다. 그중 Calcium-PHB 를 Ethylene glycol과 혼합하여 MDI 와 반응시켜 고분자 주쇄에 금속을 함유하고 있는 이온성 Polyurethane 을 합성하고, 고분자 주쇄에 이온결합이 도입됨으로써 나타나는 고분자의 물리적 성질을 조사하였다. 금속의 함량증가함에 점도는 급격히 감소하였으며 용융점은 점차 감소함을 관찰할 수 있었다. 또 Calcium-maleate를 A.N과 공중합 시켜 고분자 측쇄에 금속염을 포함한 이온결합을 형성하고 있는 고분자를 합성하고, 고분자의 측쇄에 금속이 도입됨으로 나타나는 고분자의 대수점도 및 용융점의 변화를 조사하였다. 측쇄에 이온결합이 도입됨으로써 점도는 급격히 증가하였으며 용융점은 점차 낮아지는 현상을 관찰할 수 있었다. Divalent metal-PHB와 Divalent metal-Maleate를 5\% 이내로 고분자에 도입시켰을 때 고분자 자체의 기계적 성질의 변화는 별로 초래하지 않고 금속이나 이온결합으로 인한 전기전도성, 흡습성, 난연성을 지닌 고분자를 합성할 수 있을 것으로 전망된다.한국과학기술원 : 화학과
Integrated scheduling of vessel dispatching and port operations in the closed-loop shipping system for transporting petrochemicals
No full textCountries in the Middle East are requiring larger and more complex shipping operations for the growing downstream sectors of the hydrocarbon industry, such as refining and petrochemistry. These shipping operations generally entail a closed-loop system, in which the vessels travel back and forth from a manufacturing plant to various international ports for exporting the hydrocarbon products. The current shipping systems only focus on feasible, smooth, and repeatable operations with a first-available-first-use (FAFU) policy, owing to the lack of a rigorous and systematic optimal scheduling method for maritime transportation systems. This study presents an integrated short-term scheduling model formulated as a mixed integer linear programming (MILP) model, for dispatching vessels from a petrochemical plant to international ports and economically operating a plant-side port in the closed-loop shipping system. Further, the MILP model considers varying vessel capacities and other related complex restrictions. A constructive heuristic algorithm combined with an optimization solver is adopted to solve the MILP model with sufficient speed for practical use. Numerical studies using a real data set demonstrate the effectiveness of the developed model compared to the current scheduling policy, FAFU. Moreover, we analyze the economic and computational performances of the developed solution method. Our method solves the test scenarios effectively, presenting a cost saving opportunity of 11.3% on average, which is equivalent to 439,829 USD per year for the studied operation. (C) 2019 Elsevier Ltd. All rights reserved.
Décalé VIII: LUNAR LATE — Year of the Queer Rabbit
No full textDécalé VIII: LUNAR LATE — Year of the Queer Rabbit was a research-led interdisciplinary event integrating experimental sound, performance, participatory ritual, and moving image. The evening opened with reading karaoke celebrating Asia-Art-Activism’s publication Experiments in Care and Collective Disobedience (Youngsook Choi), followed by Of Earth, Sea and Air, a collective Yusheng food remix led by Annie Jael Kwan and Jessie Jing, and participatory queer rabbit tattooing by Yarli Allison. Performances included Sam Reynolds’ non-strip cabaret piece Spell, Have You Eaten Yet? Collective’s adaptation of NIAN is Here!, which explored resistance against anti-Asian oppression through embodied ritual, and DJ/sound interventions by Princess Xixi, Reptile B, and Chooc Ly Tan. The program investigated speculative temporalities, queer futurities, and collective worldbuilding through sonic and visual practices, extending the research-led curatorial practice of Décalé in non-traditional performance spaces
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