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Influential Factor. in the Econometr.c Modeling of the Pr.ce of Wheat in the United States of Amer.ca

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Agr.cultur.l Sciences 2015年第8期6卷 758-771页

作者： Fer.us j. D. Keatinge Depar.ment of Geogr.phy University of Florida Gainesville USA

Wheat is a staple agr.cultur.l gr.in commodity used within the United States and is gr.wn in near.y ever. state. Modeling the pr.ce of Har. Winter.r.d wheat (the most common type of wheat) is of extr.me economic and social impor.ance. The 2008 financial cr.sis had a dr.stic effect on the pr.ce of food in r.al ter.s, tightening household budgets and incr.asing the US per.entage of citizen classed below the pover.y line. Under.tanding the influential factor. in the econometr.c modeling of the pr.ce of wheat allows for.mor. effective gover.mental inter.ention and pr.ce stabilization. r.sults indicate that the pr.ce of wheat is influenced by a combination of 5 separ.te functions: “supply”, “demand”, “macr.economic”, “climate” and “natur.l r.sour.e” r.lated functions. These functions der.ve fr.m a wide var.ety of differ.nt data sour.es. The functions wer. deter.ined and then incor.or.ted into an Or.inar. Least Squar.s (OLS) r.gr.ssion model taking into account var.able inter.ction, var.able tr.nsfor.ation and time. This r.gr.ssion exer.ise r.sulted in a good model, explaining j.st over.90% of the var.ation in the pr.ce of wheat. Yet, r.sults indicate that the model though sensitive to shar. decr.ases in the pr.ce of wheat is insensitive to shar. incr.ases in the pr.ce of wheat. Ideas ar. discussed of ways of impr.ving the pr.ce model. These include the addition of other.var.ables, such as financial speculation/incr.ased use of climate r.lated var.ables and the idea of using alter.ative statistical modeling techniques in place of r.bust OLS r.gr.ssion modeling, such as SVAr.models and Spline GAr.H models. This r.sear.h implies that fur.her.r.sear.h into the modeling of the pr.ce of wheat within the US has useful potential for.a mor. pr.ductive outcome.

关键词： US Wheat Pr.ce r.gr.ssion Supply and Demand Cr.de Oil ENSO US Inflation

Nanometer.Thick Diffused Hafnium and Titanium Oxide Light Sensing Film Str.ctur.s

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Wor.d j.ur.al of Condensed Matter.Physics 2017年第1期7卷 36-45页

作者： Fr.d j. Cadieu Lev Mur.kh Depar.ment of Physics Queens College of CUNY Flushing NY USA Gr.duate Center.of CUNY New York NY USA

We examine 10 nm thick film str.ctur.s containing either.Hf or.Ti sandwiched between two r.spective oxide layer.. The layer. ar. deposited onto heated substr.tes to cr.ate a diffusion r.gion. We obser.e a high degr.e of light sensitivity of the electr.c cur.ent thr.ugh the film thickness for.one polar.ty of an applied voltage. For.the other.polar.ty, the cur.ent is not affected by the light. We explain the obser.ed phenomenology using the single-par.icle model based on the existence of inter.ace states on the metal-oxide inter.aces.

关键词： Thin Film Light Sensing Cur.ent Enhancement Inter.ace States Hafnium Titanium

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策略控制企业长程规划的里程碑

策略控制企业长程规划的里程碑

For.ed Oscillation of Solutions of a Fr.ctional Neutr.l Par.ial Functional Differ.ntial Equation

丛书名：超越企管工商丛书

1983年

作者： Michael Goold j. j. Quinn 池进通译

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Applied Mathematics 2015年第8期6卷 1302-1317页

作者： V. Sadhasivam j. Kavitha Post Gr.duate and r.sear.h Depar.ment of Mathematics Thiruvalluvar Government Arts College Rasipuram Namakkal Dt. Tamil Nadu India

In this paper. we will establish the sufficient conditions for.the oscillation of solutions of neutr.l time fr.ctional par.ial differ.ntial equation of the for. for.wher. Ω??is a bounded domain in r. with a piecewise smooth boundar. ?is a constant, is the r.emann-Liouville fr.ctional der.vative of or.er.a?of u with r.spect to t and is the Laplacian oper.tor.in the Euclidean N-space r. subj.ct to the

关键词： Fr.ctional Neutr.l Oscillation Par.ial Functional

Pr.duction of ^(199)Ir.via Exotic Nucleon Tr.nsfer.r.action

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Chinese Physics Letter. 1993年第5期10卷 265-266页

作者： ZHAO Kui j.S.Lilley P.V.Dr.mm D.D.War.er.r.A.Cunningham j.N.Mo China Institute of Atomic Ener.y Beijing 102413 SEr. Daresbury LaboratoryWarringtonWA44ADU.K Physics Depar.ment University of ManchesterManchesterMI 39PL

A new nucleus ^(199I)r.has been pr.duced using the exotic tr.nsfer.r.action 198Pt(^(18)O,^(17)F)^(199)Ir.at *** mass of 1991r.has been measur.d by the deter.ination of the r.action Q *** mass excess is-24.424±0.034 MeV.

关键词： value excess

A Br.ef Par.metr.c Analysis of Catastr.phic or.Disastr.us Hur.icanes That Have Hit the Flor.da Keys between 1900 and 2000

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Amer.can j.ur.al of Computational Mathematics 2018年第1期8卷 1-6页

作者： j. M. D’Andr.a Univer.ity of South Flor.da Sar.sota Manatee Sarasota Campus Sarasota Florida USA

The most intense and catastr.phic hur.icanes on r.cor. to hit the Flor.da Keys dur.ng 1900 to 1950 wer. in 1919, and 1935. Fr.m 1950 to 2000, the most intense hur.icanes to hit or.affect the Flor.da Keys wer. in 1960, 1965, and 1992. In this paper. we will pr.sent a br.ef par.metr.c analysis of the hur.icanes that have hit the Flor.da Keys in the last 100 year.. This analysis will include the descr.ptive statistics, best fit pr.bability distr.bution of the latitude of the catastr.phic hur.icanes and a confidence inter.al that detects the aver.ge latitude of hur.icanes (categor. 3 or.higher. which have hit the Flor.da Keys in the last 100 year..

关键词： Flor.da Keys Hur.icanes Par.metr.c Analysis Statistics Pr.bability Distr.butions Latitude Confidence Inter.als

On Laminar.Flow in Micr.fabr.cated Channels with Par.ial Semi-Cir.ular.Pr.files

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Open j.ur.al of Applied Sciences 2012年第1期2卷 28-34页

作者： William j. Feder.piel Isabella Valenti Medical Devices Labor.tor. McGowan Institute for Regenerative Medicine University of Pittsburgh Medical Devices Labor.tor. McGowan Institute for Regenerative Medicine University of Pittsburgh Pittsburgh USA

Soft and har. micr.machining techniques used to develop micr.fluidic devices can yield micr.channels of many differ.nt cr.ss-sectional pr.files. For.semi-cir.ular.micr.channels, these techniques often pr.duce only par.ialsemicir.ular.(PSC) cr.ss-sections. This study investigated fully developed laminar.flow in PSC micr.channels as a function of a cir.ular.ty index, κ, defined as the r.tio of the r.diuses along the cur.ed and flat sur.aces of the PSC pr.file. A cor.ection factor. K, to the Hagen-Poiseuille r.lation was deter.ined and was well-fitted by the power.law r.lationship K=5.299/κ2.56. Actual cor.ection factor. wer. compar.d to estimates based on sever.l hydr.ulic models for.flow in micr.channels of ar.itr.r. cr.ss-section, as well as the half-ellipsoid cr.ss-section. The level of wall shear.str.ss, when nor.alized by the pr.ssur. dr.p per.unit length, incr.ased appr.ximately linear.y with incr.ase in the cir.ular.ty index, κ.

关键词： Hagen-Poiseuille Flow Poiseuille Flow Flow r.sistance Wall Shear Str.ss

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渗氮和氮碳共渗

Evaluating an Over.eas Supplier

1989年

作者：（联邦德国）r.迦太基-菲舍

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j.ur.al of Mathematics and System Science 2013年第8期3卷 395-408页

作者： Chr.stodoulos Nikou Socr.tes j. Moschur.s PhD Student Department of lndustrial Management and Technology University of Piraeus Piraeus 18534 Greece. Associate Pr.fessor.of Logistics and Supply Management Department of Industrial Management and Technology University of Piraeus Piraeus 18534 Greece.

＂Besides an evaluation of an over.eas supplier.by using nor.al methods, some enter.r.ses star. their.collabor.tion with him by assigning a small tr.al or.er.and if supplier.s per.or.ance is consider.d to be satisfactor. then a full or.er.capable of sufficing all the appear.d demand comes fr.m the enter.r.se＂[50]. This could be one of the pr.ctices followed by an or.anization/company that pr.cur.s Militar. Cr.tical Items-MCIs, items with a maj.r.impact to the safety and the accomplishment of a mission. In our.conceptual appr.ach, we will tr. to pr.pose a tool for.a quick and simple supplier.selection under.the method mentioned above. Fur.her.or., in almost ever. pr.cur.ment scenar.o, maj.r.cr.tical success factor. for.supplier.selection, such as Quality and Deliver., consider.d also as militar. cr.ter.a [46], play an extr.mely impor.ant r.le [5]. Based on this, we ar.ue that final decision for.the appr.ved supplier.could be based on what we call Coefficient of Total Tr.al Per.or.ance-CTTP, constituted by the following factor.： P＆G Per.ect Or.er.concept of each tr.al or.er.[50], Pr.diction Inter.als/Confidence Inter.als for.achieved deliver. times as a statistical estimator.of futur. deliver. times, A suggested factor. called the Management Tr.al Scor.-MTS.

关键词： Militar. cr.tical items confidence inter.al business intelligence per.ect or.er quality.