A Chain-Type Price Index for New Business Jet Aircraft

2006 ◽  
Vol 41 (1) ◽  
pp. 45-52 ◽  
Author(s):  
Dong W Cho
Keyword(s):  
Price Index ◽  
Business Jet ◽  
New Business ◽  
A Chain ◽  
Chain Type

scholarly journals Successive sampling strategy under non response

2015 ◽  
Vol 11 (1) ◽  
pp. 115-139
Author(s):  
Jaishree Prabha Karna ◽  
Dilip Chandra Nath
Keyword(s):  
Empirical Studies ◽  
Sampling Strategy ◽  
Regression Estimator ◽  
Successive Sampling ◽  
Population Mean ◽  
Successive Rotation ◽  
A Chain ◽  
Chain Type

Abstract The present work is an attempt to study the effect of non-response at both occasions in search of good successive (rotation) sampling over two occasions. A chain-type ratio and regression estimator has been proposed for estimating the population mean at current occasion in presence of non-response at both the occasion in two-occasion successive (rotation) sampling. Detail behaviors of proposed estimators have been studied. Proposed estimators are compared with the estimators for the same situations but in the absence of non-response. Performances of the proposed estimators have been demonstrated via empirical studies.

A 3D Multi-Body Dynamics Model for Chain-Type Continuously Variable Unit

2017 ◽  
Author(s):  
Mohammad A. Hotait ◽  
Avinash Singh
Keyword(s):  
Three Dimensional ◽  
Operating Conditions ◽  
Speed Ratio ◽  
3 Dimensional ◽  
Three Dimensional Representation ◽  
Static Performance ◽  
Torque Capacity ◽  
A Chain ◽  
Multi Body ◽  
Chain Type

This paper presents a new 3-dimensional multi-body dynamic model of a chain-type continuously variable unit (CVU). The modeling requirements and assumptions are presented first. Then, the paper discusses the approaches developed to mathematically represent the chain, pulleys, and their interactions in terms of contact and friction. Three dimensional representation of the chain is given. Actual geometries of the pins and pulleys are captured, including crowning on either member. The model is then used to investigate the effects of different operating conditions, including speed ratio and torque, on the quasi-static performance of a CVU. Several metrics are discussed to characterize the behavior of an example CVU under practical operating conditions; these include torque capacity and the ratio of clamping forces. The predictions presented show the sensitivity of the model to these operating conditions. Finally, trends that describe the CVU quasi-static behavior are explained in context of the parameters studied.

Small organic amine assisted synthesis of an extra-large pore containing open-framework zinc-cobalt phosphate templated by a chain-type polyamine

2009 ◽  
Vol 52 (9) ◽  
pp. 1485-1489 ◽  
Author(s):  
DaiPing Li ◽  
HaiBin Song ◽  
HongGen Wang ◽  
Niu Li ◽  
NaiJia Guan ◽  
...  
Keyword(s):  
Organic Amine ◽  
Open Framework ◽  
Large Pore ◽  
Cobalt Phosphate ◽  
A Chain ◽  
Chain Type

scholarly journals Digital transformation and new business models as determinants of formation of the economy of nontypical employment

2020 ◽  
Vol 10 (1) ◽  
pp. 33-54
Author(s):  
Anatoliy Kolot ◽  
Oksana Herasymenko
Keyword(s):  
Industry 4.0 ◽  
Business Models ◽  
Digital Transformation ◽  
Systematic Research ◽  
Gig Economy ◽  
The World ◽  
New Business ◽  
A Chain ◽  
Work And Employment ◽  
New Business Models

With the development of the Fourth Industrial Revolution and the formation of a new technological basis – “Industry 4.0” - a dynamic multi-vector transformation of the leading institutes of economy and society takes place, social and labor relations in general and employment in particular acquire new format and content. The quintessence of the article is a scientific-applied substantiation of the construct of nontypical employment economy, scientific argumentation and further development of previous researches of authors regarding determinants of gig-economy formation under the influence of economic and social development “digitalization” and emergence of new business models. that radically change all components of the world of work. New facets of the complex world of work and employment have been revealed and the increase of the newest knowledge in this field has been received under systematic research of a chain of changes: introduction of “Industry 4.0” breakthrough technologies → “digitalization” as a dominant vector of technological innovations → formation of new business models → changes in social division of labor and the content of labor processes → the emergence and intensive development of employment forms immanent to the new (digital) economy. It is substantiated that the main root cause, a kind of “trig- ger” for the emergence and reproduction of the chain of researched changes is digital transformation of the economy and society. The essence of today’s phenomena, which determine the development of the “gig economy”, is revealed. The argumentation of the spread of platform business models and their impact on the world of work and employment is given. A new theoretical construction of a chain of changes, the “output” of which is new forms and, a new platform for social and labor developmen t in general, has been suggested. The research focuses on finding answers to a number of questions posed to every conscious person. Among them are the following ones: Why can’t the modern economy “get along” with traditional (standard) forms of employment? Why does atypicality become not the exception but the norm? How do specific mechanisms and tools for transforming standard forms of employment into new ones, which are immanent to modern conditions of economic and social progress, behave in practice?

scholarly journals Manipulating Chain Type and Flail Drum Speed for Better Fibre Recovery in Chain-Flail Delimber-Debarker-Chipper Operations

2019 ◽  
Vol 41 (1) ◽  
pp. 137-147
Author(s):  
Raffaele Spinelli ◽  
Rick Mitchell ◽  
Mark Brown ◽  
Natascia Magagnotti ◽  
Andrew McEwan
Keyword(s):  
Product Quality ◽  
Fuel Consumption ◽  
Fine Particles ◽  
Rotation Speed ◽  
Time Consumption ◽  
Original Tree ◽  
Standard Configuration ◽  
A Chain ◽  
Real Scale ◽  
Chain Type

A chain-flail delimber-debarker-chipper (CFDDC) was adapted for treating smaller trees than normal by replacing the standard flails with lighter ones, and by reducing flail drum rotation speed. The machine produced 16 full containers (24 t each) for the standard configuration and 24 full containers for the innovative one. For each container the researchers measured: original tree mass, chip mass, time consumption and fuel use. Results indicated that the innovative setting accrued a 12% improvement on fiber recovery compared with the standard setting (control). At the same time, productivity increased by 20% and fuel consumption was reduced by 30%. Product quality was largely unaffected, with bark content remaining below the 1% threshold specification. If at all, product quality was improved through the reduction of fine particles, possibly derived from less diffused fraying. These results have triggered the real scale adoption of the new setting by contractors who participated in the study. The success of the innovative treatment is likely explained by its better alignment with the weaker structure of small trees from low-yielding stands.

Sign in / Sign up

Export Citation Format

Share Document