8,027 research outputs found
New School Documents
No full textNew School Code of Conduct (4/14/1988)
Email from Diane Davis to Anwar Shaikh, subject: “misc. matters” (12/22/1997)
Handwritten message from Judith Friedlander to Prof. Shaikh regarding the appointment of an ombudsperson
Report by Jessica Villota, Faculty of Color on the State of Emergency at The New School (12/12/1996)
Draft memorandum from Dean Friedlander to John Eatwell, “Low Enrolments and Cancellation of Classes”
Memo from Judith Friedlander, “Reappointment and Tenure Reviews” (11/17/1996)
Document by Anwar Shaikh, “Ph.D. Dissertation Supervisions” (10/23/1996)
Memo from Tom Palley, “Awards and Scholarships and Financial Aid” (9/19/1995)
Memo from John Eatwell to Friedlander regarding sabbatical leave
Notes titled “Junior Reappointment Committee Meeting” (11/16/1995)
Fall deposit statistics (5/15/1998)
Series of memos from Cindy Mueller to Friedlander titled “Fall Deposit Report” (5/24/1996, 5/8/1996, 5/8/1995, 5/2/1996)
List titled “CEPA Wish List”
Memo from Shaikh to Dean Alan Wolfe regarding joint appointment of Alice Amsden (10/14/1992)
Handwritten notes titled “Patrick Mason” (1/31/1996)
Memo from Shaikh to Cindy Mueller, enclosing a letter from Katherine Barbieri explaining her decision not to attend the New School (7/26/1991)
Series of memos from Shaikh to Alice Amsden regarding awards, scholarships, and student performance (4/29/1991, 6/21/1991, 5/23/1991)
Letter from Shaikh to Wolfe recommending Tom Palley (4/8/1991)
Memo from Shaikh to Ann Carter regarding the Economics Department Plan (4/3/1991)
Memo from Shaikh to Will Baumol regarding department planning (4/3/1991)
Review and Recommendations, Department of Economics, New School for Social Research (December 1990)
Summary of the Outside Review of the Economics Department (1/21/1991)
Memo from Shaikh regarding the external review (2/5/1991)
Memos from Shaikh to Wolfe regarding job candidates (3/4/1991), a draft restructuring plan (2/27/1991), and an MSSc in Development Studies (2/26/1991)
Proposal: Master of Social Science in Development Studies (2/23/1991)
Fall Application Report from Mueller to Friedlander (1/27/1996)
Letter from Friedlander to Shaikh regarding teaching a course (6/3/1996)
Memo from Shaikh to Eatwell, “Summer Program in Economics” (1/31/1996)
Flyer: Gender, Race, Economics, and Public Policy conference (4/5/1996)
Memo from Friedlander, “Winter Schedule” (12/3/1997)
Proposal by Dan McIntyre, “Redesign of Humanities Education” (4/16/1998)
Full proposal: Expand and Redesign Humanities Education at the Graduate Faculty and Lang College (4/7/1998)
Letter from Shaikh to Mahmood Mamdani titled “New School Offer”
Report by Shaikh: Economics Course Registration Trends (12/4/1996)
Memo from the Informal Committee regarding department appointments (12/14/1978)
Proposal for Faculty Appointments in Political Science by Adamantia Pollis
Letter from Natalie Misko regarding computer time allocation for Shaikh (3/17/1981)
Email from Lance Taylor to Shaikh titled “Mason Draft” (5/12/1998)
Series of emails from Samuel L. Myers to Shaikh regarding Patrick Mason (3/3/1998, 4/1/1998, 4/7/1998, 4/11/1998)
Email from Adolph Reed to Shaikh, “Congratulations to Us” (4/1/1998)
Letter from Kelvin J. Lancaster affirming Shaikh’s fulfillment of degree requirements (1/17/1973)
Memo from Joseph J. Greenbaum to Shaikh, “Visa” (5/17/1974)
Letter from John R. Everett to Senator Jacob K. Javits recommending Shaikh (5/14/1974)
Memos from Jacob Landynski regarding research and travel (11/11/1974, 3/9/1977)
Document: New Procedures for Applicants to Continue Study Toward the Ph.D. (11/1975)
Procedure and Criteria for Financial Aid in the Economics Department
Letter from Dick Bernstein to faculty regarding financial aid policy (9/20/2002)
Issues and Problems of the Social Sciences Today (Fall 1978)
Memo from Arthur J. Vidich regarding Sociology Department documentation (11/13/1978)
The Place of the Graduate Faculty of Political and Social Science in Higher Education
Class and Gender in Social Production
Memo from Allen Austill regarding a trustees meeting (5/10/1979)
In Support of Reza Bahar
Letter from Rayna Rapp to faculty regarding board of trustees meeting (5/1/1979)
Ad Hoc Student Committee Bulletin and letter titled “Day in Exile” (5/4/1979)
Handwritten notes titled “University Ombudsman” (11/1997)
Memo from Barbara Emerson to Shaikh, “Ombuds Meeting” (1/22/1998); to Ombuds (1/22/1998)
Handwritten documents: “Ombudsman Vitae” (2/3/1998); “Ombudsman Interviews” (1/16/1998)
Letter from Petra A. Harris to Emerson regarding the ombudsperson (1/16/1998)
New York Times article: “Kerry Debates His Students on Changing Iraqi Regime” (12/5/2002)
Flyer for New School MA and PhD Economics programs
Economic Policy Workshop Schedule for Fall 2004
Letters from Shaikh to Ira Katznelson recommending a list of economists (11/21/1983) and Willi Semmler (11/22/1983)
Fall Application Report (2/8/1996)
Letter from Shaikh to Jonathan Fanton thanking him for a promotion (4/4/1984)
Memo from Friedlander to Shaikh regarding course cancellation (2/7/2000)
Fall 1993 registration statistics
Letter from Economics Department students to Fanton protesting tuition increases (4/4/1994)
1992–93 Economics Department budget
Proposal by John Eatwell: The State of the Nation
Letter from economics students to faculty, “Restructuring of the M.A. Program” (10/11/1995)
Fall 1995 registration statistics
Letter from Ipek Ilkkaracan to Shaikh regarding adjunct search in gender and class (3/7/1994)
Letter from A. Sverev to Dale S. de Haan regarding impending eviction (5/29/1994); attached CV of Oleg Sverev
Letter from Oumar Bouare regarding nomination for Brookings Institution Fellowship
Memo from Richard Gaskins to the E & B Committee, “Minutes from Meeting of September 28” (10/5/1993)
Minutes from E & B meetings: 10/19/1993 (dated 10/26/1993), 11/2/1993 (dated 11/16/1993), 10/12/1993 (dated 10/19/1993)
Drafts: Tenure Standards (11/15/1993, 3/6/1990), Draft for E & B Discussion (11/16/1993)
Handwritten meeting notes (9/30/1993, 10/26/1993)
Letter from Fanton to Katznelson regarding Semmler’s promotion (1/12/1988)
Department restructuring pla
Deep anisotropic dry etching of silicon microstructures by high-density plasmas
No full textThis thesis deals with the dry etching of deep anisotropic microstructures in monocrystalline silicon by high-density plasmas. High aspect ratio trenches are necessary in the fabrication of sensitive inertial devices such as accellerometers and gyroscopes. The etching of silicon in fluorine-based plasmas is isotropic. To obtain anisotropy the addition of sidewall passivation is necessary. This is achieved with both oxygen passivation at low temperatures and fluorocarbon passivation at room temperature. A quantitative approach was pursued to explain the etching mechanism. The etch results were analysed using the measured plasma species fluxes and the surface composition. Moreover, the transport of the plasma species in narrow anisotropic structures is a fundamental factor determining the etch rate and the profile evolution. The experimental methods such as the etching equipment, plasma diagnostics, surface analysis and sample preparation are described in chapter 2. Three etching processes were investigated: the cryogenic etching process with oxygen passivation at low temperatures, the Bosch process with fluorocarbon passivation at room temperature and the novel triple pulse process that was developed in our laboratory. The polymer deposition mechanism and the characteristic role of the ions are also explained. The cryogenic etching process is discussed in chapter 3. Fluorine radicals, oxygen radicals and ion bombardment are responsible for the three main sub-processes, that is, etching, sidewall passivation and depassivation of the trench bottom, respectively. Etching experiments with an extremely low ion-to-radical flux ratio were used to reveal the etching mechanism. Crystal orientation dependent etching leading to Si(111) crystal facets is observed in a surface kinetics controlled regime. By varying the plasma conditions it is possible to adjust the etching mechanism from fluorine-limited to ion-limited. Controlled etching is obtained because the etching is tuned from aspect ratio dependent in the fluorine-limited domain to aspect ratio independent in the ion-limited domain. The transport of radicals in high aspect ratio trenches is an important limiting factor and was investigated with special structures. The etch results are described by an analytic model that is based on the surface site balance of fluorine and oxygen radicals. The results are further explained with a Monte Carlo simulation model. The Bosch process is clarified in chapter 4. The anisotropy of the etched structures is controlled by balancing the etching and passivation pulse. However, the maximal obtainable aspect ratio is limited by convergence of the trench sidewalls due to excessive passivation. The maximal obtainable aspect ratio increases if the ion-to-radical flux ratio increases. The transport of ions is an important limiting factor in the depassivation of the bottom of the trench. Divergence of the ion beam leads to a reduction of the ion flux, so that the fluorocarbon passivation is insufficiently removed near the base of the sidewalls. The average ion angle was measured and correlated to the maximal obtainable aspect ratio. The Bosch process was improved at the depassivation side with the triple pulse process and at the passivation side with preferential sidewall deposition. The triple pulse process that is described in chapter 5 has the aim to improve the depassivation in deep trenches. The three main sub-processes are decoupled using a separate depassivation pulse directly after the etching and passivation pulses. The fluorocarbon passivation is efficiently removed with low-pressure, high-density, oxygen-based plasmas. The investigated plasma chemistries include O2, CO2 and SO2. The triple pulse process leads to better profile control with a straight trench bottom. However, the maximal obtainable aspect ratio is comparable to the Bosch process because a larger etch depth and a small lateral etch cancel out. The polymer deposition mechanism is treated in chapter 6 with the aim to understand the fluorocarbon passivation in deep trenches. The deposition on plane surfaces and on special structures was investigated to distinguish between the radical-induced and ion-enhanced components. A simple analytical model, which explains the main deposition characteristics, was developed. Preferential sidewall deposition is obtained for higher ion fluxes and higher bias voltages where sputtering plays an important role. In this case no fluorocarbon passivation has to be removed from the bottom of the trench. The trench profile was optimised in the Bosch process by tuning the bias voltage during etching and passivation independently. It resulted in perfectly anisotropic trenches but the maximal obtainable aspect ratio was still limited by a small lateral etch. The characteristic role of the ions in the etching mechanism is explained in chapter 7. Ion-induced etching of both SiC in a SF6-O2 plasma and Si in a Cl2 plasma were investigated. The impact of the ions on the profile evolution can be examined more explicitly because spontaneous chemical reactions are absent for these plasma-material systems. The etching mechanism varies from fluorine-limited to ion-limited depending on the radical-to-ion flux ratio. Microtrenches are observed for an ion-limited etching mechanism. Fluorine-limited SiC etching is aspect ratio dependent in contrast to ion-limited SiC etching, which is aspect ratio independent. The etching of high aspect ratio SiC structures is limited by the positive sidewall taper. This is presumably caused by insufficient removal of the thin fluorocarbon layer on the surface. Si etching in a Cl2 plasma is always aspect ratio independent in contrast to SiC etching because of the low reaction probability. The conclusions and recommendations of this thesis are given in chapter 8.Applied Science
Eco 204, First Meeting
No full textThis collection includes:
• Handwritten notes for the first meeting of Eco 204, covering the reading list, course structure, and introductory lecture.
• Handwritten notes for Eco 204 discussing administrative issues and the aim of the course (September 6, 1997).
• Handwritten notes on the history and major themes of Marx’s work in economics (September 6, 1995).
• A handout titled Figure 1: The planned structure of Marx’s “Economics.”
• Handwritten introductory notes for Eco 204 (Fall 1983).
• Handwritten notes citing Fred Schröder, discussing Marx’s unpublished manuscripts and Maximilien Rubel’s Karl Marx: Five essays (April 1982).
• Handwritten notes titled Writing of “On Capital,” with quotations about the book (August 16, 1983).
• Handwritten notes for Eco 204 outlining the course purpose and listing students (September 4, 1996).
• A handwritten introduction and outline for Eco 205 (February 4, 1982).
• Handwritten notes on New School for Social Research letterhead outlining administrative details for Eco 204 (September 11, 1985).
• Handwritten notes listing tasks for a teaching assistant.
• A reading list for Shaikh’s Economics 205: Advanced Political Economy II (Spring 1994).
• A reading list for Shaikh’s Economics 204: Advanced Political Economy I (Fall 1993).
• Handwritten notes on profit and debt multipliers, including simulation results and code (August 1985).
• Handwritten notes on Marx’s schemes of reproduction from Capital, Volume II.
• A diagram by Shaikh titled Money and commodity circulation in simple reproduction for Eco 204.
• Handwritten notes by Shaikh titled Balance conditions in simple and expanding reproduction (March 1996).
• Typed notes by Shaikh for Eco 204 titled Notes on turnover, fixed and circulating capital (January 2, 1977).
• A folder cover titled Reproduction.
• Handwritten notes titled Marx and Keynes on simple reproduction (April 12, 1983).
• A final exam by Shaikh for Eco 204: Advanced Political Economy I (December 1996).
• A final exam by Shaikh for Eco 205: Advanced Political Economy II (Spring 1997).
• A Ph.D. qualifying examination for Advanced Political Economy (July 14, 1997).
• A final exam by Shaikh for Eco 107: Introduction to Political Economy II (Spring 1997).
• An M.A. exam for the Political Economy Core (May 22, 1997).
• An M.A. exam for the Standard Core in Intermediate Microeconomics (May 22, 1997).
• A makeup exam by Shaikh for Eco 204: Advanced Political Economy I (May 1997).
• A final exam by Shaikh for Eco 205: Advanced Political Economy II (Spring 1997).
• Several copies of a final exam by Shaikh for Eco 204: Advanced Political Economy I (December 1996).
• Handwritten notes titled Formation of a general rate of profit (August 1989).
• Handwritten notes on merchant capital, commercial capital, and money-dealing capital for Eco 205 (Spring 1979).
• Handwritten notes on the empirical strength of the labor theory of value (November 20, 1983).
• Handwritten notes on competition between and within industries (December 1986).
• Handwritten notes for a lecture on basic questions concerning price–value deviations (June 2, 1981).
• A handwritten derivation of an equation for the transformation from Marx to Sraffa (December 1986).
• A handwritten overall outline for a course on the labor theory of value (October 22, 1988).
• Handwritten lecture notes with the heading 4 themes in Wolff.
• Handwritten notes for a Barnard talk on value, including sections on defining the question and labor time (1988).
• A continuation of handwritten notes for a Barnard talk discussing the law of value, social necessity, profit and exploitation, surplus value, and neoclassical economics (February 1977).
• Handwritten notes for Eco 204 on the transformation problem (October 14, 1987).
• Handwritten draft notes for an essay or lecture on the transformation problem, including sections on production, reproduction, and exchange; the law of value; calculation versus conception; profit on alienation versus profit from surplus value; the sum of prices and sum of profits; and a critique of the Sraffian (neo-Ricardian) perspective.
• Pages 52–55 of a chapter by Shaikh on the transformation from Marx to Sraffa, from Ricardo, Marx, Sraffa, edited by Ernest Mandel and Alan Freeman.
Expanded reference: Mandel, E., & Freeman, A. (Eds.). (1984). Ricardo, Marx, Sraffa. London, UK: Verso.
• Handwritten notes titled Critique of neoricardians, covering the structure of neo-Ricardian economics and arguments about redundancy, inconsistency, and primacy (June 2, 1981).
• Handwritten notes on the choice of technique argument (June 2, 1981).
• A paper by Shaikh titled Surplus value for The New Palgrave (August 1986).
Expanded reference: Shaikh, A. (1987). Surplus value. In J. Eatwell, M. Milgate, & P. Newman (Eds.), The New Palgrave: A dictionary of economics (Vol. 4, pp. 531–535). London, UK: Macmillan.
• Handwritten notes on residual differences, effects of wages, and empirical evidence (April 29, 1992).
• A folder titled Marxian multiplier 1983–84.
• Handwritten notes on business cycles, Kuznets cycles, and Kondratieff cycles (December 6, 1984).
• Handwritten notes on planned output and effective demand (September 1984).
• Handwritten notes on expectations, output, and investment (August 30, 1984).
• Handwritten notes on borrowing by business (September 28, 1984).
• Handwritten notes titled Maximum dividend in Marxian accounts with a numerical example (September 14, 1984).
• Handwritten notes titled Accounting for inventory additions versus investment in fixed capital (October 10, 1983).
• Handwritten notes outlining basic variables and short-run structural relationships for a model (December 17, 1984).
• Handwritten notes on the tie-up of surplus value (October 16, 1983).
• Handwritten notes titled Aggregate supply and demand in Marx (October 2, 1983).
• A summary and notes on profit from produced goods (October 16, 1983).
• Handwritten notes on Duménil’s Marxian–Keynesian account, with a focus on capital stock and flows (December 18, 1981).
• Handwritten notes on a quotation from Theories of surplus value.
• A handwritten note on settling accounts in economic theory.
• Handwritten notes on profit, accumulation, and Harrod’s problem.
• Handwritten notes and charts showing the machine sector adding an unsold machine to final goods inventories (October 16, 1983).
• Handwritten notes and charts showing the machine sector buying a machine from itself (October 16, 1983).
• A copy of Shaikh’s Notes on Marx and Keynes (January 12, 1983).
• Handwritten notes and a graph on circulating capital and the multiplier, including a summary of a Marxian multiplier (September 1983).
• Handwritten notes and graphs on the government spending multiplier when demand changes are unanticipated (October 10, 1987).
• A proof of the Marxian multiplier for government spending (September 27, 1983).
• A summary of the Marxian multiplier (September 28, 1983).
• Handwritten notes on the Marxian multiplier for investment spending (October 1, 1983).
• Course outlines for Shaikh’s Eco 204 and Eco 205 (September 1, 2001).
• A reading list for Shaikh’s Eco 204: The economic analysis of advanced capitalism I (Fall 2001).
• A folder containing a reading list for Eco 205 (Spring 2002).
• An outline for Shaikh’s Eco 205: The economic analysis of advanced capitalism II (Spring 2002).
• Three copies of the outline for Eco 205.
• Two copies of the first page of the typed notes by Shaikh for Eco 204.
• A partial course outline and reading list for Advanced Political Economy.
• A course outline and reading list for Shaikh’s Eco 204: Advanced Political Economy I (Fall 1987).
• A reading list for Shaikh’s Eco 205: Advanced Political Economy II (Spring 1988).
• A reading list for Shaikh’s Economics 210: Marx and Keynes (Spring 1990).
• A course outline and reading list for Shaikh’s Eco 204: Advanced Political Economy I (Fall 1986).
• A final exam for Shaikh’s Eco 204: Advanced Political Economy I (Fall 1987).
• Five copies of a final exam for Shaikh’s Eco 204: Advanced Political Economy I (Fall 1987).
• A packet on The falling rate of profit by Shaikh (April 1987).
• A supplementary reading list for Shaikh’s Eco 205 (Spring 1987).
• A reading list for Shaikh’s Eco 210: Selected topics in political economy—Marx on effective demand (Spring 1985).
• Study questions for Shaikh’s Eco 205, Set I (March 17, 1987).
• The title page, table of contents, and first chapter of The long wave in economic life by J. J. van Duijn.
Expanded reference: Van Duijn, J. J. (1983). The long wave in economic life. London, UK: George Allen & Unwin.
• The final page of the final exam for Eco 204: Advanced Political Economy I (Fall 1987).
• A table of contents by Shaikh for A packet on the falling rate of profit (April 1987).
• A supplementary reading list for Eco 205 on wage squeeze and productive/unproductive labor (Spring 1987).
• A reading list for Economics 210: Selected topics in political economy, covering Marx, Keynes, Ricardo, Harrod, and Kalecki (Spring 1985).
• A series of graphs by Shaikh on the U.S. and OECD economies, with an appendix on data sources and methods of calculation (March 1987).
• The title page, table of contents, and first chapter of The long wave in economic life by J. J. van Duijn
Department Business File
No full textLetter from Victor Zaslavsky to Champion Ward recommending Jeffrey C. Goldfarb for tenure (5/11/82)
Spring 1981 faculty address list
Memo from Alfred Szymanski regarding final grade reporting (5/4/79)
Executive Faculty meeting minutes (10/27/82)
Letter from Ward to the Executive Faculty regarding the selection of a new president (2/5/82)
Memo from Ward regarding German visitors (7/22/81)
Memo from Ward to Allen Austill regarding Anthony Gabb (3/23/81)
Handwritten notes complaining about Wanderman
Memo from Robert Heilbroner to Anwar Shaikh regarding Ross and Gita (5/4/81)
Memo from Shaikh to Ward regarding 1981 staffing levels (4/6/81)
Proposed introductory curriculum changes from the Economics Society for 1981–82
Handwritten department meeting notes (2/11/81)
Provisional listing of department projects (Fall 1980)
Memo from Natalie Misko to Prof. Shaikh regarding teaching assistants for Summer 1981 (4/28/81)
Memo from Ward to department chairs regarding clearance for outside activities and sabbatical credit for co-taught courses (4/3/81)
Student’s course of study report card (Spring 1981)
Student’s scholarship award notification (6/6/80)
Letter from Ricardo Luz da Costa Lobo to Prof. Shaikh regarding a TA compensation grievance (3/20/81)
Open letter from the Graduate Faculty Philosophy Club to the Board of Trustees (2/25/81)
Check disbursement from the CUNY computer center to the Economics Department (1981)
Handwritten notes regarding the theft of an exam
Letter from Ali Amir-Ebrahimi to Prof. Shaikh regarding a TA compensation grievance (3/5/81)
Memo from Misko to economics department TAs regarding TA compensation (3/6/81)
Memo from Misko to executive and budget committee members regarding a meeting (2/26/81)
Memo from Ward to Gita Sen regarding appointment as Assistant Professor (2/26/81)
Memo from Ward to Ross D. Thomson regarding appointment as Assistant Professor (2/26/81)
Parsons School of Design degree award statistics (2/18/81)
Handwritten notes regarding department chairs (12/17/80)
Department meeting notes (1/28/81)
Handwritten Ph.D. exam procedures (2/18/81)
Duplicate handwritten department meeting notes (1/28/81)
Teaching assistant application completed by Victor Frank
M.A. exam attendance sheet (1/9/70)
Summer registration statistics
Handwritten Spring 1981 course list
Memo from M. Pflugi to Prof. Sen regarding Spring 1981 work-study (1/26/81)
Handwritten note indicating Agahim is retaking courses to improve GPA
Letter from Paolo Giussani to Anwar Shaikh thanking him for a letter of recommendation (12/5/80)
Letter from Ross to Anu regarding sabbatical project progress report (2/17/81)
Curriculum vitae of Gita Sen
Curriculum vitae of Ross D. Thomson (Spring 1981)
Memo from Vietorisz to Shaikh requesting authorization to cancel class (2/5/81)
Economics registration statistics (1/28/81)
Memo from Daniel J. Giannini to graduate faculty regarding full-time equivalency petition (1/12/81)
Invoice for wine purchased for the Economics Department (1/29/81)
Letter to economics faculty complaining about exam difficulty (12/9/80)
Letter from Yilmaz Akyuz to Gordon regarding Fulbright grant application (1/7/81)
Blank half-time/full-time petition form
Student matriculation requirements
Letter from Gordon to Constantinos Papadoulis regarding suspected exam cheating (12/11/80)
Handwritten letter from Papadoulis to graduate faculty professing innocence
Handwritten meeting notes affirming decision to fail Papadoulis (1/28/80)
Memo from Steerman to Gordon regarding Papadoulis case (12/30/80)
Statement from Eatwell titled ECO 202 Make-Up Examination (1/13/81)
Letter from TA Tom Michl attesting to cheating incident (1/14/81)
Proctor report noting student caught cheating during exam (12/8/80)
Department meeting minutes (4/30/86)
Curriculum vitae of Fatma Nilüfer Cagatay (2/1986)
Memo from Edward Nell regarding the 1986–1987 catalog (3/10/86)
Memo from Gordon to Nell regarding late grade submissions (3/3/86)
Memo from Shaikh to Economics Society regarding late Econ 204 grades (3/7/86)
Memo from Nell to the Economics Department regarding office renovations (11/25/85)
Letter from Constance J. Clark to Vietorisz requesting submission of a research paper to fulfill Ph.D. requirements, with attached summary and bibliography (12/9/85
Assessment of Models for Near Wall Behavior and Swirling Flows in Nuclear Reactor Sub-system Simulations
No full textAccurate simulation of turbulence remains one of the most challenging problems in nuclear reactor analysis and design. Due to limitations in computing resources, Reynolds averaged Navier Stokes models (RANS) continue to play an important role in reactor simulations. The Consortium for advanced simulations of light water reactors (CASL) is a Department of Energy technology hub that is investing in research and developmentof a state-of-the-art computational fluid dynamics capabilityto meet the challenges of turbulent simulation of nuclear reactors. In this presentation, we assess several RANS eddy viscosity models appropriate for single-phase incompressible turbulent flows. Specifically, we compare the single equation Splalart-Allmaras to several variations of the model. The assessment takes into consideration elements of full system reactor cores such as complex geometries, heterogeneous meshes, swirling flow, near wall flow behavior, heat transfer and robustness issues. The goal of this strategically oriented assessment is to provide an accurate and robust turbulent simulation capability for the CASL community. Metrics of performance will be constructed by comparing different models on a strategically chosen set of problems that represent reactor core sub-systems
O zarubežnoj dejatel'nosti professora M.A. Kumaxova
No full textOn professor M.A. Kumakhov's work and research abroad (in Russian)
Professor Mukhadin A. Kumakhov and the author collaborated in the area of Northwest Caucasian languages under a period from 1991 to 2008. The fruitful collaboration at Lund and Malmö universities resulted in three joint monographs and a number of articles, which is outlined in the article. Mukhadin A. Kumakhov became Honorary Doctor of the Philosophical Faculty of Lund University in 1998
Bringing clouds into our lab!: The influence of turbulence on early stage rain droplets
No full textWe are investigating a droplet-laden flow in an air-filled turbulence chamber, forced by speaker-driven air jets. The speakers are running in a random manner; yet they allow us to control and define the statistics of the turbulence. We study the motion of droplets with tunable size in a turbulent flow, mimicking the early stages of raindrop formation. 3D Particle Tracking Velocimetry (PTV) is chosen as the experimental method to track the droplets and collect data for statistical analysis. Thereby it is possible to study the spatial distribution of the droplets in turbulence using the so-called Radial Distribution Function (RDF), a statistical measure to quantify the clustering of particles. Additionally, this technique allows us to measure velocity statistics of the droplets and the influence of the turbulence on droplet trajectories, both individually and collectively. In this contribution, we will present velocity statistics of the droplets and quantify their clustering using the RDF for different turbulence conditions
Performance optimization of pillow sheet set sewing assembly line by SAM analysis and lean manufacturing techniques of method study & work measurement
No full text[EN] This research was conducted to enhance the productivity of the targeted sewing line at the ABC textile company. The existing SAMs, the capacity of the sewing line for various operations, and several required machines were collected. Moreover, the obtained figures were observed and analyzed by using time study and motion study, and certain improvements were made at the sewing line. Results indicated that SAMs for operations A and B were minimized by -13.64% and -14.54% respectively; whereas, SAM for operation C was increased by 16.67%. Machine requirement for operation C was increased by 100%; moreover, the capacity for operations A, B, and C was increased by 12%, 12.69%, and 40% respectively. When it is to production activities, the little improvements play a significant role in boosting the productivity of the production system. Optimal allocation of human resources, machines, and time are the benefits of line balancing. This can be made possible with the application of the line-balancing framework. With every passing day, the nature and type of article vary at the sewing line thus it is highly needed for the company to get the model developed for an automated line balancing application. Moreover, this work can be extended by the development of a line-balancing framework considering the nature of production.Haseeb, A.; Khan, MA.; Shaikh, SA.; Iftikhar, Z.; Kumar, R.; Bux, K.; Naz, A.... (2023). Performance optimization of pillow sheet set sewing assembly line by SAM analysis and lean manufacturing techniques of method study & work measurement. Journal of Applied Research in Technology & Engineering. 4(1):1-12. https://doi.org/10.4995/jarte.2023.17861OJS11241Alzoubi, K., Hijazi, H., & Alkhateeb, A. (2019). Facility planning and assembly line balancing in garment industry. 2019 6th International Conference on Frontiers of Industrial Engineering, 11-15. https://doi.org/10.1109/ICFIE.2019.8907686Andreu-Casas, E., García-Villoria, A., & Pastor, R. (2022). Multi-manned assembly line balancing problem with dependent task times: a heuristic based on solving a partition problem with constraints. European Journal of Operational Research, 302(1), 96-116. https://doi.org/10.1016/j.ejor.2021.12.002Arain, M.S., Khan, M.A., & Kalwar, M.A. (2020). Optimization of Target Calculation Method for Leather Skiving and Stamping: Case of Leather Footwear Industry. International Journal of Business Education and Management Studies (IJBEMS), 7(1), 15-30. https://www.ijbems.com/doc/IJBEMS-137.pdfAung, K.N. Y., & Tun, Y.Y. (2019). Assembly Line Balancing to Improve Productivity using Work Sharing Method in Garment Factories. International Journal of Trend in Scientific Research and Development, 3(5), 1582-1587.Bongomin, O., Mwasiagi, J.I., Nganyi, E.O., & Nibikora, I. (2020a). Engineering Reports - 2020 - Bongomin - A complex garment assembly line balancing using simulation-based optimization.pdf. Engineering Reports, e12258. https://doi.org/10.1002/eng2.12258Bongomin, O., Mwasiagi, J.I., Nganyi, E.O., & Nibikora, I. (2020b). Improvement of garment assembly line efficiency using line balancing technique. Engineering Reports, 2(4), 1-18. https://doi.org/10.1002/eng2.12157Budiman, I., Sembiring, A.C., Tampubolon, J., Wahyuni, D., & Dharmala, A. (2019). Improving effectiveness and efficiency of assembly line with a stopwatch time study and balancing activity elements. Journal of Physics: Conference Series, 1230(1). https://doi.org/10.1088/1742-6596/1230/1/012041Bukhsh, M., Khan, M.A., Zaidi, I.H., Yaseen, R., Khalid, A., Razzaque, A., & Ali, M. (2021). Productivity Improvement in Textile Industry using Lean Manufacturing Practice of Single Minute Die Exchange ( SMED ). Proceedings of the 11th Annual International Conference on Industrial Engineering and Operations Management Singapore, March 7-11, 2021. http://www.ieomsociety.org/singapore2021/papers/1282.pdfChaudhry, A.K., Kalwar, M.A., Khan, M.A., & Shaikh, S.A. (2021). Improving the Efficiency of Small Management Information System by Using VBA. International Journal of Science and Engineering Investigations, 10(111), 7-13. http://www.ijsei. com/papers/ijsei-1011121-02.pdfChutima, P. (2020). Research trends and outlooks in assembly line balancing problems. Engineering Journal, 24(5), 93-134. https://doi.org/10.4186/ej.2020.24.5.93Çil, Z.A., Li, Z., Mete, S., & Özceylan, E. (2020). Mathematical model and bee algorithms for mixed-model assembly line balancing problem with physical human-robot collaboration. Applied Soft Computing Journal, 93(106394). https://doi.org/10.1016/j.asoc.2020.106394Fani, V., Bindi, B., & Bandinelli, R. (2020). Balancing assembly line in the footwear industry using simulation: A case study. Proceedings - European Council for Modelling and Simulation, ECMS, 34(1). https://doi.org/10.7148/2020-0056Germanes, J.S., Puga, M.F., Sabio, R.B., Sanchez, E.M., & Hugo, J.C. (2017). Improving Efficiency of Shoe Manufacturer through the Use of Time and Motion Study and Line Balancing. Journal of Industrial and Intelligent Information, 5(1), 16-22. https://doi.org/10.18178/jiii.5.1.16-22Haque, T.M., Hossain, R.M., & Hasan, S.M. (2018). Bottleneck problem reduction of a garment manufacturing industry in Bangladesh by using line balancing technique. International Journal of Research in Advanced Engineering and Technology, 4(2), 28-32. https://doi.org/10.13140/RG.2.2.32627.84004Iftikhar, Z., Khan, M.A., Kumar, R., Bux, K., & Haseeb, A. (2021). Productivity Improvement of Garments Industry by Assembly Line Technique of Lean Manufacturing. Proceedings (Abstract) of the International Conference on Industrial & Mechanical Engineering and Operations Management Dhaka, Bangladesh, December 26-27, 2021., 908. https://ieomsociety.org/proceedings/2021dhaka/497.pdfIftikhar, Z., Khan, M.A., Soomro, A.S., Kumar, R., Bux, K., Haseeb, A., & Naz, A. (2022). Productivity Improvement of Assembly Line in Textile Stitching Unit by Lean Techniques of Line Balancing and Time and Motion Study. International Journal of Science and Engineering Investigations (IJSEI), 11(127), 51-60. http://www.ijsei.com/papers/ijsei-1112722-07.pdfIftikhar, Z., Kumar, R., Bux, K., Haseeb, A., Khan, M.A., Naz, A., Hassam, & Soomro, A.S. (2022). Lean Manufacturing Tools and Techniques for the Productivity Improvement in Assembly Lines Operations of Industries. InternationalResearch Journal of Modernization in Engineering Technology and Science, 4(7), 4554-4562. https://www.irjmets. com/uploadedfiles/paper//issue_7_july_2022/28986/final/fin_irjmets1663258443.pdfKalwar, M.A., Khan, M.A., Phul, Z., Wadho, M.H., Shahzad, M.F., & Marri, H.B. (2022). The analysis of performance before and after ERP implementation: a case of a manufacturing company. Journal of Applied Research in Technology & Engineering, 3(2), 115-121. https://doi.org/10.4995/jarte.2022.17789Kalwar, M.A., Shaikh, S.A., Khan, M.A., & Malik, T.S. (2020). Optimization of Vendor Rate Analysis Report Preparation Method by Using Visual Basic for Applications in Excel (Case Study of Footwear Company of Lahore). Proceedings of the International Conference on Industrial Engineering and Operations Management (IEOM, Dhaka, Bangladesh, December 26-27. https://ieomsociety.org/proceedings/2021dhaka/228.pdfKathem, A.S., A.H.Al-Kindi, L., & Al-Baldawi, Z. (2021). Integration of Lean Concepts and Line balancing Focusing on Value Adding Activities. Design Engineering, 6, 6263-6275.Khan, M.A. (2018). Preliminary Study on Lean Manufacturing Practices at Yarn Manufacturing Industry - A Case Study [Masters of Engineering (Thesis), Department of Industrial Engineering & Management, Mehran University of Engineering & Technology, Jamshoro, Sindh, Pakistan.]. https://doi.org/10.13140/RG.2.2.31557.37609Khan, M.A., Khatri, A., & Marri, H.B. (2020). Descriptive analysis of lean manufacturing practices in textile industry. Proceedings of the 5th NA International Conference on Industrial Engineering and Operations Management Detroit, Michigan, USA, August 10 - 14, 2020, 3870-3871. http://www.ieomsociety.org/detroit2020/papers/753.pdfKhan, M.A., Marri, H.B., & Khatri, A. (2020a). Exploring The Applications Of Lean Manufacturing Practices In Textile Industry. Proceedings of the International Conference on Industrial Engineering and Operations Management, Dubai, UAE, March 10-12, 2020, 2360-2361. http://www.ieomsociety.org/ieom2020/papers/545.pdfKhan, M.A., Marri, H.B., & Khatri, A. (2020b). Preliminary Study on the Identification, Analysis and Elimination of Lean Manufacturing Wastes through Lean Manufacturing Practices at Yarn Manufacturing Industry. Proceedings of the International Conference on Industrial Engineering and Operations Management, Dubai, UAE, March 10-12, 2020, 2347-2349. http://www.ieomsociety.org/ieom2020/papers/189.pdfKhan, M.A., Memon, M.S., & Soomro, A.S. (2020). Exploring the applications of lean manufacturing practices in automobile industry. Proceedings of the 5th NA International Conference on Industrial Engineering and Operations Management Detroit, Michigan, USA, August 10 - 14, 2020, August. http://www.ieomsociety.org/detroit2020/papers/727.pdfKhan, M.A., Shaikh, S.A., Lakho, T.H., & Mughal, U.K. (2020). Potential of Lean Tool of Value Stream Mapping (VSM) in Manufacturing Industries. Proceedings of the 2nd African International Conference on Industrial Engineering and Operations Management Harare, Zimbabwe, December 7-10, 2020, 3064-3074. http://www.ieomsociety.org/harare2020/papers/698.pdfKhan, M.A., Shaikh, S.A., & Marri, S. (2020). Systematic review of lean manufacturing practices in pharmaceutical industry. Proceedings of the 5th NA International Conference on Industrial Engineering and Operations Management Detroit, Michigan, USA, August 10 - 14, 2020, August, 3674-3675. http://www.ieomsociety.org/detroit2020/papers/726.pdfKhan, M.A., Soomro, A.S., Shaikh, S.A., Memon, M.S., & Marri, S. (2020). Lean manufacturing in pakistan: A comprehensive review. Proceedings of the 5th NA International Conference on Industrial Engineering and Operations Management Detroit, Michigan, USA, August 10 - 14, 2020, August. http://www.ieomsociety.org/detroit2020/papers/728.pdfKhan, M.A., Kalwar, M.A., Malik, A.J., Malik, T.S., & Chaudhry, A.K. (2021). Automation of Supplier Price Evaluation Report in MS Excel by Using Visual Basic for Applications: A Case of Footwear Industry. International Journal of Science and Engineering Investigations (IJSEI), 10(113), 49-60. http://www.ijsei.com/papers/ijsei-1011321-08.pdfKhan, M.A., Khatri, A., & Marri, H.B. (2021a). Applications of Waste Relations Matrix (WRM) in Lean Wastes Identification. Proceedings of the 11th Annual International Conference on Industrial Engineering and Operations Management Singapore, March 7-11, 2021. http://www.ieomsociety.org/singapore2021/papers/1269.pdfKhan, M.A., Khatri, A., & Marri, H.B. (2021b). Identification of Defects in Various Processes of Spinning: A Case Study of Kotri, Sindh, Pakistan. Proceedings of the First Central American and Caribbean International Conference on Industrial Engineering and Operations Management, Port-Au-Prince, Haiti, June 15-16, 2021. http://ieomsociety.org/proceedings/2021haiti/299.pdfKumar, P., Khan, M.A., Mughal, U.K., & Kumar, S. (2020). Exploring the Potential of Six Sigma ( DMAIC ) in Minimizing the Production Defects. Proceedings of the 3rd International Conference on Industrial & Mechanical Engineering and Operations Management Dhaka, Bangladesh, December 26-27, 2020. http://www.ieomsociety.org/imeom/260.pdfKumar, R., Iftikhar, Z., Bux, K., Haseeb, A., Khan, M.A., Naz, A., Hassam;, & Shaikh, S.A. (2022). Optimization of Fitted Sheet Set Assembly Line at Garments Industry by Lean Manufacturing Techniques and SAM Analysis. International Research Journal of Modernization in Engineering Technology and Science (IRJMETS), 4(10), 1634-1647. https://www.irjmets.com/uploadedfiles/paper//issue_10_october_2022/30821/final/fin_irjmets1667794675.pdfKumar, S., Khan, M.A., Ahmed, S., Rehman, A., & Luhar, E. (2020). A Case Study for Performance Evaluation of Motorcycle Assembly Line through the Lean Manufacturing Practice of Overall Equipment Effectiveness ( OEE ). Proceedings of the International Conference on Industrial Engineering and Operations Management Dubai, UAE, March 10-12, 2020, 1622-1623. http://www.ieomsociety.org/ieom2020/papers/192.pdfLakho, T.H., Khan, M.A., Virk, S.I., & Indher, A.A. (2020). Implementation of Overall Equipment Effectiveness ( OEE ) in Maintenance Management. Proceedings of the 2nd African International Conference on Industrial Engineering and Operations Management Harare, Zimbabwe, December 7-10, 2020, 3087-3098. http://www.ieomsociety.org/harare2020/papers/700.pdfLakho, T.H., Khan, M.A., Virk, S.I., & Indher, A.A. (2021). Evalaution of Overall Equipment Effectivness in a Heavy Engineering Industry: A Case Study. Proceedings in the First Central American and Caribbean International Conference on Industrial Engineering and Operations Management, Port-Au-Prince, Haiti, June 15-16, 2021. http://ieomsociety.org/proceedings/2021haiti/297.pdfLi, Z., Kucukkoc, I., & Tang, Q. (2021). Enhanced branch-bound-remember and iterative beam search algorithms for type II assembly line balancing problem. Computers & Operations Research, 131, 105235. https://doi.org/10.1016/j.cor.2021.105235Manaye, M. (2019). Line Balancing Techniques for Productivity Improvement Improvement. International Journal of Mechanical and Industrial Technology, 7(1), 89-104.Mekala, N., Sanju, S.D., Thamaraiselvan, V., & Kavya, M. (2021). Implementation of Industrial Engineering concepts in Apparel Industry to improving Productivity and it's cost reduction. IOP Conference Series: Materials Science and Engineering, 1059(1). https://doi.org/10.1088/1757-899X/1059/1/012027Mughal, U.K., Khan, M.A., Kumar, P., & Kumar, S. (2020). Applications of Lean Six Sigma ( LSS ) in Production Systems. Proceedings of the 2nd African International Conference on Industrial Engineering and Operations Management Harare, Zimbabwe, December 7-10, 2020, 3075-3086. http://www.ieomsociety.org/harare2020/papers/699.pdfMughal, U.K., Khan, M.A., Kumar, P., & Kumar, S. (2021). Identification and Analysis of Stitching Defects at the Stitching Unit: A Case Study. Proceedings of the First Central American and Caribbean International Conference on Industrial Engineering and Operations Management, Port-Au-Prince, Haiti, June 15-16, 2021. http://ieomsociety.org/proceedings/2021haiti/298.pdfMulani, S.J., Awasare, A.D., Shetenawar, R.M., & Panchal, R.N. (2019). Line Balancing by Using Time Study. International Journal of Scientific Research and Engineering Development, 2(4), 302-304. https://doi.org/10.17148/IARJSETRada-Vilela, J., Chica, M., Cordón, Ó., & Damas, S. (2013). A comparative study of multi-objective ant colony optimization algorithms for the time and space assembly line balancing problem. Applied Soft Computing, 13(11), 4370-4382. https://doi.org/10.1016/j.asoc.2013.06.014Rajput, S., Khan, M.A., Samejo, S., Murtaza, G., & Ali, R.A. (2020). Productivity Improvement by the Implementation of lean manufacturing practice ( takt time ) in an automobile assembling plant. Proceedings of the International Conference on Industrial Engineering and Operations Management Dubai, UAE, March 10-12, 2020, 1618-1619. http://www.ieomsociety.org/ieom2020/papers/190.pdfSahito, S.A., Khan, M.A., Arain, A.A., Bhutto, S.A., Wadhyo, R., & Memon, S.A. (2020). A Study For The Identification And Elimination Of Lean Manufacturing Wastes At The Pharmaceutical Production Plant Improvement By The Implementation Of Lean Manufacturing Practice ( Takt Time ). Proceedings of the International Conference on Industrial Engineering and Operations Management Dubai, UAE, March 10-12, 2020, 1620-1621. http://www.ieomsociety.org/ieom2020/papers/191.pdfSchlüter, M.J., & Ostermeier, F.F. (2022). Dynamic line balancing in unpaced mixed-model assembly lines: A problem classification. CIRP Journal of Manufacturing Science and Technology, 37, 134-142. https://doi.org/10.1016/j.cirpj.2022.01.012Shakib, M.N., Rahman, M.M., Parvez, M.S., & Haque, A.S. M. (2014). Study of Lean facility Layout in Garment Manufacturing Process: Focusing Sewing Section of Men's Shirt. International Conference on Mechanical, Industrial and Energy Engineering.Shar, W.A., Shaikh, S.A., & Khan, M.A. (2021). Analysis of Production System of Pharmaceutical Company by Using Lean Technique of Overall Equipment Effectiveness (OEE). Journal of Contemporary Issues in Business and Government (CIBG), 27(5), 2407-2417. https://cibgp.com/pdf_15891_5952933fe85877ac4ca9e9d3db87c667.htmlSikora, C.G. S., Lopes, T.C., & Magatão, L. (2017). Traveling worker assembly line (re)balancing problem: Model, reduction techniques, and real case studies. European Journal of Operational Research, 259, 949-971. https://doi.org/10.1016/j.ejor.2016.11.027Xie, Z., Du, J., Chen, Q., & Wang, X. (2021). Enhancing the labor division in the balancing of apparel assembly lines with parallel workstation through an improved ant colony algorithm. Journal of Engineered Fibers and Fabrics, 16, 1-14. https://doi.org/10.1177/15589250211055784Yemane, A. (2021). Productivity Improvement of BOB T-Shirt through Line Balancing Using Control Limit Analysis and Discrete Event Simulation, Case Study: MAA Garment and Textile Factory. Journal of Optimization in Industrial Engineering, 14(2), 19-32. https://doi.org/10.22094/JOIE.2020.561766.1545Zaidi, I.H., Khan, M.A., Bukhsh, M., Yaseen, R., & Shaikh, S.A. (2021). Implementation of Lean Manufacturing Practices in Diverse Manufacturing Industries. Proceedings of the 11th Annual International Conference on Industrial Engineering and Operations Management Singapore, March 7-11, 2021. http://www.ieomsociety.org/singapore2021/ papers/1268.pd
The Story about the constructed SARS COV-2 Virus - A Review of three Research Groups
No full textAbstract
A literature research on synthetic recombinant SARS Coronavirus was made to answer two questions. Is the SARS CoV-2 virus designed in a laboratory? And why has the SARS CoV-2 such a high mutation rate? A total of 12 research articles, 2 reviews and 10 experimental studies were attributed to three Research Groups, the Wadsworth Center New York, the Vanderbilt Medical Center, and the Chapel Hill North Carolina. The research papers were published between 1991 and 2014. All 12 research papers reported the successful construction of recombinant SARS Coronaviruses based on RNA reverse genetic and molecular techniques. The Research group from the Medical Center at Vanderbilt University proved how an engineered SARS Coronavirus with an impaired Exonuclease resulted in a progeny virus with high mutation rate. Furthermore, the review showed that a zoonotic-human transmission was just possible with specific genetic manipulations at the SARS CoV virus genome through selection of virus species for recombination, and targeted manipulation at non-structural virus domains. But importantly, the studies showed that a SARS Coronavirus cross-species infection such as between zoonotic and humans or between different animal species without the exchange of the virus spike protein domain with the host-specific receptor-binding domain (RBD) and additional point mutations was not possible. Therefore, the SARS CoV-2 was deliberately constructed to overcome the receptor limiting factor for animal-human infection. Interestingly, the review revealed that the study purpose of constructed recombinant SARS CoV changed from the scientific research point of view to vaccine production and development. Competing interests for all reviewed studies by grants from private investors such as the Gates Foundation and vaccine production companies were part of the discussion. Keywords: SARS CoV-2, Covid19, Spike protein, gene sequencing, Vanderbilt University, University North Carolina, Wadsworth Research Center, New York Health Department, Coronavirus, Bill & Melinda Gates Foundation, WHO, Pfizer, Merck, Novartis, AlphaVaxThe author declares no competing interests.
[email protected]
The force of law as a social problem
No full textIn this paper, the author aims to respond to the urgings in the book “The Force of Law” by Frederick Schauer breaking from the paradigm of analytical jurisprudence, insofar as the University of Virginia philosopher states having found sociological bases for his own logical/reconstructive architecture. The author, on the one hand, intend to develop a critique of Schauer’s approach that is not merely theoretical, but sociological as well; on another hand, Hart’s thesis on force in law—strongly criticized by contemporary analytical philosophers—is not therefore rebuffed by sociological analysis but somehow finds confirmation. In a nutshell, whether the use of force is sociologically necessary to control isolated resistance to the rules shared by the majority, or to reinforce a law, that aims to trigger necessary social change, but such a strong limitation of human freedom must be justified; and this legitimacy can only derive from the need for Justic
- …
