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The influence of moisture on the permeability of crushed shale samples

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Petroleum Science 2019年第3期16卷 492-501页

作者： Mercy Achang jack c.Pashin Eliot A.Atekwana Boone Pickens School of Geology Oklahoma State UniversityStillwater OK 74078USA Department of Geological Sciences University of DelawareNewarkDE 19716IJSA

Shale cuttings and cores recovered from the subsurface and stored for hours to decades tend to dry out and lose moisture and hydrocarbons,leading to an increase in the effective matrix *** loss in shale samples is a fundamental sample preservation problem which can be solved by applying a standard moisture equilibration procedure to restore lost *** aim was to investigate the relationship between permeability and variable moisture as-received,as-received moisture-equilibrated and saturated moisture-equilibrated *** were crushed to a series of particle sizes(0.6-2.0)mm and moisture equilibrated at 97% relative *** show that moisture equilibration in the samples was achieved after 72 *** permeability of the saturated moisture-equilibrated and as-received moisture-equilibrated samples decreased exponentially with increase in moisture *** high correlation coefficient between permeability and particle size(r = 0.96 and 0.97)for moisture-equilibrated samples compared to 0.76 for as-received samples indicates that moisture equilibration improves permeability measurements in crushed shale ***,permeability measurements are repeatable for moisture-equilibrated samples compared to samples that were not equilibrated(as-received).We conclude that moisture content affects permeability and moisture equilibration normalizes and improves the repeatability of permeability measurements in crushed shale.

关键词： crushed shale Matrix permeability Moisture equilibration

Integration of molecular genetic technology with quantitative genetic technology for maximizing the speed of genetic improvement

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华南农业大学学报 2005年第S1期26卷 104-117页

作者： jack c.M. DEKKErS Department of Animal Science and center for Integrated Animal Genomics 239D Kildee Hall Iowa State University Ames IA 50011 USA

To date,most genetic progress for quantita-tive traits in livestock has been made by selec-tion on phenotype or on estimates of breedingvalues(BBV)derived from phenotype,withoutknowledge of the number of genes that affect thetrait or the effects of each *** this quantita-tive genetic approach to genetic improvement,the genetic architecture of traits of interest hasessentially been treated as a‘black box’.De-spite this,the substantial rates of genetic im-provement that have been and continue to be a-chie...

关键词： molecular genetics quantitative genetic QTL MAS

Machine learning algorithms for suicide risk:a premature arms race?

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General Psychiatry 2020年第6期33卷 429-431页

作者： jack c Lennon Department of Psychology Adler UniversityChicagoIllinoisUSA

INTrODUcTION Machine learning(ML)techniques1 are becoming a major area of study in psychiatry,as ML possesses the theoretical capacity to draw conclusions based on a broad range of data once the system has been taught through a process of trial and ***,and arguably most importantly,ML can do so more quickly and accurately than clinicians.2 Several studies have demonstrated accuracy through the use of ML in various populations and geographic locations,further perpetuating the perceived need to incorporate ML into ongoing studies.

关键词： becoming learning conclusions

Physics-based,data-driven approach for predicting natural ventilation of residential high-rise buildings

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Building Simulation 2022年第1期15卷 129-148页

作者： Vincent J.L.Gan Boyu Wang c.M.chan A.U.Weerasuriya jack c.P.cheng Department of Building School of Design and EnvironmentNational University of SingaporeSingapore117566 Department of civil and Environmental Engineering The Hong Kong University of Science and TechnologyHong Kong999077China

Natural ventilation is particularly important for residential high-rise buildings as it maintains indoor human comfort without incurring the energy demands that air-conditioning *** improve a building’s natural ventilation,it is essential to develop models to understand the relationship between wind flow characteristics and the building's *** more effort is still needed for developing such reliable,accurate,and computationally economical models instead of currently the most popular physics-based models such as computational fluid dynamics(cFD)*** paper,therefore,presents a novel model developed based on physics-based modelling and a data-driven approach to evaluate natural ventilation in residential high-rise *** model first uses cFD to simulate wind pressures on the exterior surfaces of a high-rise *** the surface pressures have been obtained,multizone modelling is used to predict the air change per hour(AcH)for different flats in various ***-driven prediction models are then developed using data from the simulation and deep neural networks that are based on mean absolute error,mean absolute percentage error,and a fusion algorithm *** data-driven models are used to predict the AcH of 25 *** results from multizone modelling and data-driven modelling are *** results imply a high accuracy of the data-driven prediction in comparison with physics-based *** fusion algorithm-based neural network performs best,achieving 96%accuracy,which is the highest of all models *** study contributes a more efficient and robust method for predicting wind-induced natural *** findings describe the relationship between building design(e.g.,plan layout),distribution of surface pressure,and the resulting AcH,which serve to improve the practical design of sustainable buildings.

关键词： computational fluid dynamics data-driven prediction machine learning multizone model natural ventilation residential building

Optimizing dietary lipid use to improve essential fatty acid status and reproductive performance of the modern lactating sow:a review

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Journal of Animal Science and Biotechnology 2016年第3期7卷 272-289页

作者： David S.rosero r.Dean Boyd jack Odle Eric van Heugten The Hanor company FranklinKY 42134USA Department of Animal Science North Carolina State UniversityRaleighNC 27695USA

Dietary lipid supplementation benefits the prolific and high-producing modern lactating sow. A comprehensive review of recent studies showed that lipid supplementation increases average daily energy intake, which is partitioned for lactation as indicated by greater milk fat output and improved litter growth rate. recent compelling findings showed that addition of particular lipids during lactation improved the subsequent reproductive outcome of sows. Such benefits were related to the level of dietary essential fatty acids（EFA, linoleic acid, c18：2n-6; and α-linolenic acid, c18：3n-3） during lactation. Lactation diets without supplemental EFA resulted in a pronounced negative balance（intake minus milk output） of linoleic（-25.49 g/d） and α-linolenic acid（-2.75 g/d）; which compromised sow fertility（farrowing rate 〈 75 % and culling rates 〉 25 % of weaned sows）. This phenomenon seems to be increasingly important with advancing sow age because of a progressive reduction of body EFA pool over successive lactations. The net effect of supplemental EFA during lactation was to create a positive EFA balance, which improved the subsequent reproduction of sows. Adequate linoleic acid intake improved the proportion of sows that farrowed in the subsequent cycle（Farrowing rate（%） = [（-1.5 × 10^-3× linoleic acid intake（g/d）^2）＋（0.53 × linoleic acid intake（g/d））＋（45.2）]; quadratic P = 0.002, r^2= 0.997, rMSE = 0.031）. In addition, increasing linoleic acid intake increased the number of pigs born in the subsequent cycle（total pigs born（n） = [（9.4 × 10^-5× linoleic acid intake（g/d）^2）＋（0.04 × linoleic acid intake（g/d））＋（10.94）]; quadratic P = 0.002, r^2= 0.997, rMSE = 0.031）. Supplemental α-linolenic acid resulted in a rapid return to estrus（sows bred： sows weaned = 94.2 %; wean-to-estrus interval = 4.0 d） and achieved a high retention of pregnancy（sows pregnant： sows bred = 98 %）. collectively, we conclude that a minimum dietary intake of10 g/d of α-linolenic acid, simultaneous wit

关键词： Essential fatty acids Lactating sow Subsequent reproduction Supplemental lipids

Quantitative characterization of polyacrylamide–shale interaction under various saline conditions

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Petroleum Science 2017年第3期14卷 586-596页

作者： Samyukta Koteeswaran jack c.Pashin Josh D.ramsey Peter E.clark School of chemical Engineering Oklahoma State UniversityStillwater OK 74078 USA Boone Pickens School of Geology Oklahoma State University Stillwater OK 74078 USA

Interaction of polymer-containing injected fluids with shale is a widely studied phenomenon, but much is still unknown about the interaction of charged polyacrylamides such as anionic and cationic polyacrylamides with shale. The nature of interaction of charged polyacrylamides with shale is not well understood, especially from the perspective of assessing the potential for polyacrylamides to cause formation damage. Zeta potential and rheological measurements were made for chattanooga and Pride Mountain shales suspended in polyacrylamide solutions with and without inorganic salts and tetramethyl ammonium chloride（TMAc）. The change in zeta potential and viscosity with time was recorded. The magnitude of decrease in the absolute value of zeta potential with time is indicative of adsorption of polymer on the surface of shale and serves as a measure of the extent of polymer interaction with shale. The salts that were used in this study are potassium chloride（Kcl）, sodium chloride（Na cl）. This study quantified the interaction of anionic and cationic polyacrylamide with different North American *** the experimental results, it was determined that the polyacrylamides can interact strongly with shale, particularly the cationic polyacrylamide. The objective of this study was to determine the extent of interaction of anionic and cationic polyacrylamide with each shale sample in the presence of additives such as salts.

关键词： Anionic and cationic polyacrylamides chattanooga shale Pride Mountain shale Zeta potentialSlurry rheology

Transplacental induction of fatty acid oxidation in term fetal pigs by the peroxisome proliferator-activated receptor alpha agonist clofibrate

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Journal of Animal Science and Biotechnology 2016年第3期7卷 341-352页

作者： Xi Lin Sheila Jacobi jack Odle Laboratory of Developmental Nutrition Department of Animal SciencesNorth Carolina State University

Background： To induce peroxisomal proliferator-activated receptor α（PPArα） expression and increase milk fat utilization in pigs at birth, the effect of maternal feeding of the PPArα agonist, clofibrate（2-（4-chlorophenoxy）-2-methyl-propanoic acid, ethyl ester）, on fatty acid oxidation was examined at ful-term delivery（0 h） and 24 h after delivery in this *** group of pigs（n = 10） was delivered from pregnant sows fed a commercial diet with or without 0.8% clofibrate for the last 7 d of gestation. Blood samples were col ected from the utero-ovarian artery of the sows and the umbilical cords of the pigs as they were removed from the sows by c-section on day 113 of ***： HPLc analysis identified that clofibric acid was present in the plasma of the clofibrate-fed sow（~4.2 μg/m L）and its offspring（~1.5 μg/m L）. Furthermore, the maternal-fed clofibrate had no impact on the liver weight of the pigs at 0 h and 24 h, but hepatic fatty acid oxidation examined in fresh homogenates showed that clofibrate increased（P 〈 0.01）^14c-accumulation in cO2 and acid soluble products 2.9-fold from [1-^14c]-oleic acid and 1.6-fold from[1-^14c]-lignoceric acid respectively. correspondingly, clofibrate increased fetal hepatic carnitine palmitoyltransferase（cPT）and acyl-co A oxidase（AcO） activities by 36% and 42% over controls（P 〈 0.036）. The m rNA abundance of cPT I was 20-fold higher in pigs exposed to clofibrate（P 〈 0.0001） but no differences were detected for AcO and PPArα m rNA between the two ***： These data demonstrate that dietary clofibrate is absorbed by the sow, crosses the placental membrane, and enters fetal circulation to induce hepatic fatty acid oxidation by increasing the cPT and AcO activities of the newborn.

关键词： clofibrate Fatty acid oxidation Pigs Placenta transfer

MATHEMATIcAL MODEL FOr THE ENTErPrISE cOMPETITIVE ABILITY AND PErFOrMANcE THrOUGH A PArTIcULAr EMDEN-FOWLEr EQUATION u〞-n^(-q-1)u(n)~q=0

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Acta Mathematica Scientia 2018年第4期38卷 1311-1321页

作者： Yue-Loong cHANc Meng-rong LI c. jack YUE Yong-Shiuan LEE Tsung-Jui cHIANG-LIN Department of Phycology National Chengchi University Taipei China Department of Mathematical Sciences National Chengchi University Taipei China Department of Statisitics National Chengchi University Taipei China Graduate Institute of Finance National Taiwan University of Science and Technology Taipei China

In this article, we work with the ordinary equation u″-n-q-1u（n）q=0 and learn some interesting phenomena concerning the blow-up and the blow-up rate of solution to the equation.

关键词： estimate life-span blow-up blow-up rate competitive ability performance

Lymph node metastasis from non-melanoma skin cancer

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Journal of cancer Metastasis and Treatment 2022年第1期8卷 379-392页

作者： robbie S.r.Woods jack F.c.Woods conall W.r.Fitzgerald Ehab Alameer Joseph Lopez Bhuvanesh Singh Jatin P.Shah Department of Head&Neck Surgery Memorial Sloan Kettering Cancer CenterNew YorkNY 10065USA Plastic&reconstructive Surgery Memorial Sloan Kettering Cancer CenterNew YorkNY 10065USA

The management of non-melanoma skin cancers metastatic to the neck is challenging due to variability in biological behavior and patterns of regional lymphatic *** non-melanoma skin cancers to the parotid and neck often behave aggressively,with a high incidence of local recurrence after treatment and reduced five-year survival *** of lymphatic spread are different from those seen in mucosal squamous cell carcinoma,with higher prevalence of disease in the parotid and superficial *** factors require that treatment is individualized to achieve optimal ***,the management of non-melanoma skin cancers metastatic to lymph nodes has involved surgical excision followed by adjuvant radiation ***,novel systemic therapies are showing promising results and their role in the management of these cancers is evolving.

关键词： Neck non-melanoma cutaneous malignancy skin neoplasms lymph nodes lymphatic metastasis