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201.
This paper presents a design for skip-lot sampling inspection plans with the double-sampling plan as the reference plan, so as to reduce the sample size and produce more efficient plans in return for the same sampling effort. The efficiency of the proposed plan compared with that of the conventional double-sampling plan is also discussed. The need for smaller acceptance numbers under the plan is highlighted. Methods of selecting the plan indexed by the acceptable quality level and limiting quality level, and by the acceptable quality level and average outgoing quality level are also presented. 相似文献
202.
The conclusions of alogically consistent economic theory which strictly adheres to Aristotle's axioms of logic are factually true if its sufficient conditions are all factually true. Alternatively, if a conclusion of such a theory is false, then at- least one of its assumptions is false. Unfortunately, the factual truth of sufficient conditions cannot be established because the problem of induction i s impossible t o solve. It is algo true that the falsity of a conclusion cannot be established in the presence of uncertainty. While the philosophy of instrumentalism applied to sufficient and logically consistent explanations may provide useful solutions to immediate practical problems, the principles of simplicity, parsimony and profligacy--all of them requiring conditional deductive arguments--are useless as criteria for model choice. 相似文献
203.
Urban tree cover: an ecological perspective 总被引:11,自引:4,他引:7
Zipperer Wayne C. Sisinni Susan M. Pouyat Richard V. Foresman Timothy W. 《Urban Ecosystems》1997,1(4):229-246
Analysis of urban tree cover is generally limited to inventories of tree structure and composition on public lands. This approach provided valuable information for resource management. However, it does not account for all tree cover within an urban landscape, thus providing insufficient information on ecological patterns and processes. We propose evaluating tree cover for an entire urban area that is based on patch dynamics. Treed patches are classified by their origin, structure, and management intensity. A patch approach enables ecologists to evaluate ecological patterns and processes for the entire urban landscape and to examine how social patterns influence these ecological patterns and processes. 相似文献
204.
205.
This paper presents the results on consistency and asymptotic normality of a class of minimum contrast estimators for random processes with short- or long-range dependence based on the second- and third-order cumulant spectra. Asymptotic properties of sample spectral functionals of second and third orders, which are of independent interest in view of their possible use for nonparametric estimation of processes with short- or long-range dependence, are also provided. 相似文献
206.
ANDREW V. BEALE 《The Career development quarterly》1989,38(2):172-182
Familiarizing prospective counselors with basic career information resources is one of the primary goals of most career counseling classes. This article illustrates a series of novel activities that can be used to introduce students to standard career resources. 相似文献
207.
208.
Tables have been prepared for the construction and selection of multiple dependent (deferred) state (MDS) sampling plans of type MDS-(c1,c2). These plans are compared with conventional sampling plans (such as single and double sampling) and it is shown that MDS-type plans require a smaller sample size. A special feature of the MDS-(0,1) plan is highlighted and its design procedure is indicated. 相似文献
209.
Craig R. Humphrey Rodney A. Erickson 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》1997,8(1):39-63
Non-profit industrial development organisations (NIDOs) represent a common but little studied community response to widespread
deindustrialisation in the United States. These non-profits are organised as chartered not-for-profit corporations, public
authorities or agencies of local government. Most receive at least some public funding to promote local industrial development.
Thus, a key issue is how accountable NIDOs are to the public they have been created to serve. Data from national surveys of
NIDO executive directors in 1984 and 1994, as well as a survey of six case study boards of directors, suggest that public
accountability is an increasingly important concern among NIDOs. Public hearings, efforts to diversify the boards in terms
of gender and race, and connections to community development corporations and other local organisations are among the ways
NIDOs attempt to be accountable to the general public. Although few women or racial minorities serve on NIDO boards, those
boards with representation of these groups tend to be more concerned with public accountability. Boards containing public
officials tend to be less concerned, presumably because their presence makes the NIDOs more directly accountable as a result
of the participation of elected public representatives. 相似文献
210.
K. V. Mardia 《Journal of applied statistics》1998,25(2):231-235
SUMMARY Fisher has presented various applications of the repeated integral of the normal distribution function. A new application has appeared in shape distributions. This work has led to the search for an explicit expression for the repeated normal integral function in place of an infinite series expansion for this function first given by Fisher. We provide an explicit expression for this function with a finite number of terms. 相似文献