bluuebunny/crossref_metadata_2025 huggingface dataset:
An Examination of the Effect of Inquiry and Auditor Type on Reporting Intentions for Fraud
Authors: Kaplan Steven E. , Pope Kelly Richmond , Samuels Janet A.
Published: November 2011

Employee tips are the most common form of initial fraud detection, suggesting that employees frequently are aware of fraud before others professionally charged to detect fraud, such as internal and external auditors. Given the seriousness of fraud to a range of stakeholders, it is important to increase our understanding of the willingness of employees who learn about fraud to report this information to auditors. We conduct an experimental study describing a hypothetical situation involving an employee's discovery of a fraudulent act by his supervisor. Given the hypothetical situation, participants, assuming they were facing the situation, provide their intentions to report fraud to an auditor. The study examines several issues related to participants' intentions to report fraud to auditors. First, we predict and find that participants' reporting intentions to an inquiring auditor are stronger than their reporting intentions to a noninquiring auditor. Second, we predict and find that participants' reporting intentions to an internal auditor are stronger than their reporting intentions to an external auditor. Third, based on contrast coding results, we predict and find that inquiry and auditor type interact to influence reporting intentions. Fourth, we find that reporting intentions for two different types of fraudulent acts, misappropriation of assets and fraudulent financial reporting, do not significantly differ, nor does the type of fraudulent act interact with whether the auditor engages in inquiry or the report recipient (e.g., internal versus external auditor). Supplemental analysis provides additional information on the extent to which beliefs differ between the two types of fraudulent acts.
Are All Industry Specialist Auditors the Same?
Authors: Cahan Steven F. , Jeter Debra C. , Naiker Vic
Published: November 2011

We expand upon the traditional market share-based measure of industry specialization by auditors to address the following question: Are industry specialist auditors who obtain their market share by auditing varying proportions of clients in an industry similar in terms of product (audit) quality and price (audit fees)? Our analyses suggest that the audit market is characterized by a type of segmentation in which some specialists pursue product differentiation strategies, focusing more extensively on the acquisition of requisite expertise, while others pursue cost minimization strategies, producing lower cost, lower quality audits. We find that audit fees and quality are higher (lower) when the specialist gains significant market share by auditing a low (high) proportion of clients in that industry. Our evidence suggests that specialists pursue different strategies in different settings. In some cases, specialist auditors may actually be low-end producers, raising a question of whether the “specialist” label is even appropriate.
Glycemic Control in Pharmacist-Managed Insulin Titration Versus Standard Care in an Indigent Population
Authors: Pitlick Jamie M. , Brooks Amie D.
Published: November 2011

Purpose. To assess the impact of a pharmacist-managed insulin titration program on achieving clinical goals in an underserved population with diabetes.

Methods. The study included 35 subjects followed in a pharmacist-managed insulin titration and 35 matched control subjects. Control subjects were followed under standard procedures within the same clinic and were matched for age, titration time frame, and insulin regimen. The primary outcome was change in A1C between the two groups at 6 months. Secondary outcomes included change in A1C within groups at 3, 6, 9, and 12 months, as well as the proportion of subjects attaining a goal A1C of < 7% and adhering to preventive care recommendations.

Results. Between-group comparison demonstrated a significant absolute difference in mean change in A1C at 6 months favoring pharmacist management (0.9%, 95% CI 0.2–1.6, P = 0.009). Within-group comparisons demonstrated significant A1C reduction from baseline at 6 months (−1.1%, 95% CI −1.7 to −0.4, P = 0.002), 9 months (−1.4%, 95% CI −2.0 to −0.7, P < 0.001), and 12 months (−1.3%, 95% CI −2.0 to −0.5, P = 0.001) in the pharmacist-managed group with no significant changes observed in the control group.

Conclusion. Pharmacist-managed insulin titration resulted in significant improvement in glycemic control compared to standard care in an indigent population.
Predictors of Diabetic Retinopathy in a Community Health Center Population
Authors: Olayiwola J. Nwando , Sobieraj Diana M. , Kulowski Kathryn , St. Hilaire Daniel
Published: November 2011

Objective. To determine the predictors of diabetic retinopathy (DR) in a Federally Qualified Health Center population of patients.

Research design and methods. We retrospectively evaluated 526 patients who were screened for DR in the first year of a newly implemented telemedicine program (July 2009 to June 2010). Through this program, a total of 139 patients were diagnosed with DR, whereas 387 patients were not and then served as the comparator group. Multivariate logistic regression was used to determine the predictors of DR in this cohort of patients.

Results. After multivariate analysis, four positive predictors of DR were found: insulin use (adjusted odds ratio [AOR] 1.94 [1.17–3.22]), years with diabetes (AOR 1.22 [1.16–1.28]), A1C (AOR 1.15 [1.02–1.29]), and kidney disease (AOR 5.11 [2.33–11.20]). No variables were found to decrease the odds of DR.

Conclusion. Among patients with diabetes, use of insulin therapy, longer duration of diabetes, presence of kidney disease, and higher A1C values increase the odds of DR. These preliminary data may suggest patients who are at higher risk of DR to further prioritize screening for DR with a newly implemented telemedicine program.
Representations of Tame Quivers and Affine Canonical Bases
Authors: Lin Zongzhu , Xiao Jie , Zhang Guanglian
Published: November 2011

There are several different ways to construct affine canonical bases, in addition to approaches by Lusztig and Kashiwara. In this paper we present a different approach to canonical bases via Hall algebras and representations of tame quivers over finite fields. The main idea is to tensor together integral bases constructed for cyclic quivers and Kronecker quivers with those from the preinjective and preprojective parts of tame quiver representations. Several different bases: a PBW type basis, a monomial basis, and a bar-invariant basis are constructed and their relations to the canonical basis are discussed. The result also answers a question by Nakajima.
Noncommutative Topological Entropy of Endomorphisms of Cuntz Algebras II
Authors: Skalski Adam
Published: November 2011

A study of noncommutative topological entropy of gauge invariant endomorphisms of Cuntz algebras began in our earlier work with J.\,Zacharias is continued and extended to endomorphisms which are not necessarily of permutation type. In particular it is shown that if

\mathsf{H}

is an

N

-dimensional Hilbert space,

V

is an irreducible multiplicative unitary on

\mathsf{H} \otimes \mathsf{H}

and

F: \mathsf{H} \otimes \mathsf{H} \to \mathsf{H} \otimes \mathsf{H}

is the tensor flip, then the Voiculescu entropy of the Longo's canonical endomorphism

\rho_{VF} \in {\textrm{End}}(\mathcal{O}_N)

is equal to

\log N

.
Periodicity for Mumford–Morita–Miller Classes of Surface Symmetries
Authors: Akita Toshiyuki
Published: November 2011

We prove periodicity for mod p Mumford–Morita–Miller classes of surface symmetries and thereby for finite subgroups of mapping class groups. As an application, we obtain a couple of vanishing results for mod

p

Mumford–Morita–Miller classes for surface symmetries.
On Some Properties of Universal Sigma-Finite Measures Associated with a Remarkable Class of Submartingales
Authors: Najnudel Joseph , Nikeghbali Ashkan
Published: November 2011

In a previous work, we associated with any submartingale

X

of class

(\Sigma)

, defined on a filtered probability space

(\Omega, \mathcal{F}, \mathbb{P}, (\mathcal{F}_t)_{t \geq 0})

satisfying some technical conditions, a

\sigma

-finite measure

\mathcal{Q}

on

(\Omega, \mathcal{F})

, such that for all

t \geq 0

, and for all events

\Lambda_t \in \mathcal{F}_t

:

\mathcal{Q} [\Lambda_t, g\leq t] = \mathbb{E}_{\mathbb{P}} [\mathbb{1}_{\Lambda_t} X_t],

where

g

is the last hitting time of zero by the process

X

. In this paper we establish some remarkable properties of this measure from which we also deduce a universal class of penalisation results of the probability measure

\mathbb{P}

with respect to a large class of functionals. The measure

\mathcal{Q}

appears to be the unifying object in these problems.
A Triterpenoid from Thalictrum fortunei Induces Apoptosis in BEL-7402 Cells Through the P53-Induced Apoptosis Pathway
Authors: Zhang Xiantao , Zhao Ming , Chen Lvyi , Jiao Haoyan , Liu Hongxia , Wang Liyan , Ma Shuwei
Published: November 2011

Thalictrum fortunei S. Moore, a perennial plant distributed in the southeastern part of China, has been used in Traditional Chinese Medicine for thousands of years for its antitumor, antibacterial and immunoregulatory effects. In order to investigate the active components and the mechanism of the anti-tumor effects of Thalictrum fortunei, the growth inhibitory effects of eight triterpenoids isolated from the aerial parts of the plant on tumor cell lines were examined by 3-(4,5)-dimethylthiazoy1-3,5-diphenyltetrazolium bromide (MTT) assay. The MTT-assay results showed that the inhibitory activity of 3-O-β-D-glucopyranosyl-(1→4)-β-D-fucopyranosyl(22S,24Z)-cycloart-24-en-3β,22,26-triol 26-O-β-D-glucopyranoside (1) was stronger than that of the other seven tested triterpenoids on human hepatoma Bel-7402 cell line (Bel-7402), human colon lovo cells (LoVo), human non-small cells lung cancer NCIH-460 cells (NCIH-460) and human gastric carcinoma SGC-7901 cells (SGC-7901) after 48 h treatment in vitro, with the IC50 values of 66.4, 84.8, 73.5, 89.6 μM, respectively. Moreover, the antitumor mechanism of compound 1 on Bel-7402 cell was explored through nucleus dyeing, fluorescence assay, flow cytometry and western blot. The flow cytometric analysis results revealed that compound 1 caused apoptosis and mitochondrial membrane potential (MMP) loss in Bel-7402 cells. A fluorescence assay indicated that intracellular reactive oxygen species (ROS) were markedly provoked by compound 1 treatment compared to control cells. Immunoblot results showed that compound 1 significantly increased the expression levels of cleaved caspase-3, P53 and Bax protein, and decreased the expression level of Bcl-2 protein. These findings indicate that compound 1 inhibits the growth activity of tumor cells, probably through the P53 protein-induced apoptosis pathway.
Usefulness of Cellular Text Messaging for Improving Adherence Among Adolescents and Young Adults with Systemic Lupus Erythematosus
Authors: TING TRACY V. , KUDALKAR DEEPA , NELSON SHANNEN , CORTINA SANDRA , PENDL JOSHUA , BUDHANI SHAAISTA , NEVILLE JENNIFER , TAYLOR JANALEE , HUGGINS JENNIFER , DROTAR DENNIS , BRUNNER HERMINE I.
Published: November 2011

Objective.

In a cohort of 70 patients with childhood-onset systemic lupus erythematosus (cSLE): to determine the baseline adherence to medications and visits; to investigate the effects of cellular text messaging reminders (CTMR) on adherence to clinic visits; and to study the influence of CTMR on adherence to use of hydroxychloroquine (HCQ).

Methods.

CTMR were sent to 70 patients prior to clinic visits for 14 months. A subgroup of patients were evaluated for medication adherence to HCQ: 19 patients receiving CTMR prior to each scheduled HCQ dose were compared to 22 patients randomized to standard of care education about HCQ. Visit adherence was measured using administrative databases. Pharmacy refill information, self-report of adherence, and HCQ blood levels were utilized to monitor medication adherence to HCQ. Sufficient adherence to visits or HCQ was defined as estimates > 80%. Disease activity was primarily monitored with the Systemic Lupus Erythematosus Disease Activity Index.

Results.

At baseline, 32% of patients were sufficiently adherent to HCQ, and 81% to clinic visits. Visit adherence improved significantly by > 80% among those who were nonadherent to clinic visits at the baseline CTMR (p = 0.01). CTMR did not influence adherence to HCQ over time.

Conclusion.

Patients with cSLE were only modestly adherent to HCQ and clinic visits. CTMR may be effective for improving visit adherence among adolescents and young adults with cSLE, but it does not improve adherence to HCQ.
CAG Repeat Polymorphism in the Androgen Receptor Gene in Women with Rheumatoid Arthritis
Authors: DZIEDZIEJKO VIOLETTA , KURZAWSKI MATEUSZ , SAFRANOW KRZYSZTOF , OSSOWSKI ANDRZEJ , PIATEK JAROSLAW , PARAFINIUK MIROSLAW , CHLUBEK DARIUSZ , PAWLIK ANDRZEJ
Published: November 2011

Objective.

Rheumatoid arthritis (RA) is the most common chronic, autoimmune, inflammatory disease, with a genetic and hormonal background. The prevalence of women among patients with RA suggests the important role of sex hormones in the pathogenesis of RA. We examined the association between CAG repeat polymorphism in the androgen receptor (AR) gene and susceptibility to RA and its clinical features in white women.

Methods.

The study groups consisted of 325 female patients with RA and 238 female controls. CAG repeat polymorphism was determined using polymerase chain reaction and subsequent fragment analysis by capillary electrophoresis.

Results.

The number of CAG repeats in patients did not differ from that of controls (22.1 ± 2.9 vs 21.9 ± 2.9, respectively; p = 0.26), but the presence of articular erosions was associated with a lower number of repeats in the shorter allele of patients with RA (20.4 ± 2.2 vs 21.2 ± 2.4; p = 0.031). When alleles with < 22 CAG were classified as short (S) and those with ≥ 22 CAG as long (L), the age at diagnosis of RA was lower in women with S-S genotype in comparison to combined S-L + L-L genotypes (43.0 ± 14.6 yrs vs 47.6 ± 12.5 yrs; p = 0.021). In patients with the L-L genotype, the frequency of erosive disease (OR 0.45, 95% CI 0.25–0.80, p = 0.0085) and extraarticular manifestations (OR 0.50, 95% CI 0.26–0.98, p = 0.047) was lower in comparison to carriers of the S allele. In multivariate analysis, the L-L genotype was an independent factor associated with a lower risk of erosions (OR 0.44, 95% CI 0.22–0.90, p = 0.024).

Conclusion.

The results suggest the association of short AR (CAG)n alleles with earlier onset and a more aggressive course of RA.
La clinique actuelle des familles avec des s à lui ? Si c'est Eiguer
Authors: Eiguer Alberto
Published: November 2011

Résumé « La clinique actuelle des familles avec des adolescents. » Ce travail examine certaines difficultés actuelles rencontrées par les familles qui ont des enfants adolescents, tout particulièrement la défaillance de la mythopoïèse et la perte du sens de la famille. Après la définition de ces problématiques, l’exposition de leurs caractéristiques et l’analyse de leur origine, l’auteur étudie la fonction du thérapeute dont l’importance se fait sentir aussi bien par ses interprétations que par sa sensibilité aux virtualités de l’intersubjectivité, dans laquelle il est à la fois spectateur et acteur, voire auteur. À la lumière d’un exemple clinique, on note que la TFP permet de retrouver les buts de la famille et ensuite de consolider son identité. Pour y parvenir, on n’exclut pas une redéfinition de la place des parents et des enfants ou la remise en cause des intentions souvent inconscientes qui animent leurs projets.
Des outils théoriques pour traiter la famille en adolescence
Authors: Loncan Anne
Published: November 2011

Résumé « Des outils théoriques pour traiter la famille en adolescence. » L’auteur cerne les indices de l’impact familial de la crise adolescente, désormais étalée sur une longue durée. Elle développe ensuite des options théoriques à propos de la topologie de la psyché groupale familiale. Les principaux points retenus (liens intersubjectifs et enveloppes psychiques), reconsidérés à la lumière de l’adolescence, contribueront à former le cadre des thérapies familiales psychanalytiques. Ils seront utiles à prendre en compte aussi bien dans l’engagement des thérapies que pour en apprécier l’évolution. Cette optique est illustrée par une brève vignette clinique.
Familles en mal d'adolescence
Authors: Aubertel Françoise
Published: November 2011

Résumé « Familles en mal d’adolescence. » Dans le bouleversement des équilibres et de l’organisation des liens familiaux au moment de l’adolescence, la thérapie familiale psychanalytique offre un soin spécifique permettant un réétayage et une reprise des modalités de fonctionnement groupales autorisant les processus d’individuation.
Des Esseintes, un héros en négatif, dernier maillon d'une chaîne pathologique perverse
Authors: Condamin Christine , Sauvage-Vieillard Anne-Claire
Published: November 2011

Résumé « Des Esseintes, un héros en négatif, dernier maillon d’une chaîne pathologique perverse. À propos du roman À rebours de J.-K. Huysmans. » Des Esseintes, héros singulier du roman À rebours de Joris-Karl Huysmans, tente de créer un lieu propice à son mode de jouissance perverse, un environnement privé, régressif et esthétisé, pour pouvoir survivre. Dans cette solitude, il fait part de ses troubles pathologiques et de sa douleur psychique, de son vécu conscient et inconscient, mais aussi du fonctionnement intersubjectif et transgénérationnel de sa famille par l’intermédiaire de ses souvenirs, de ses fantasmes et de ses rêves. Il montre comment chacun a pu être à la fois acteur et victime d’un tissage pathologique imprégné de violentes transmissions inter et transgénérationnelles. L’auteur du roman, dont le personnage peut être un double, fait œuvre de création littéraire dans un processus de sublimation, parvenant à une véritable recherche stylistique au cœur de l’intime.
Ceux qui n'y vont pas
Authors: Bourlanges Jean-Louis
Published: November 2011

Résumé L’article procède d’une démarche paradoxale : étudier des non-événements et retracer des non-candidatures. De 1965 à 2007, les élections présidentielles ont été presque toutes marquées par l’absence finale d’un ou plusieurs candidats attendus. L’auteur dresse ici une libre typologie de ces défections et distingue cinq profils majeurs de défaillants : les surnuméraires qui se contentent de déposer leurs cartes de visite, les contestataires qui refusent le système, les mandataires qui espèrent indûment que l’élection leur sera servie sur un plateau, les légataires qui cherchent à hériter mais ne veulent pas conquérir, et enfin les atrabilaires qui attendent chimériquement du mandat convoité un pouvoir idéal, total et parfait.
A LIFE CYCLE ENERGY COMPARISON OF THREE WORLD EXPO BUILDINGS
Authors: Shen Shanshan , Vale Brenda , Vale Robert
Published: November 2011

Over the last hundred years the booming exhibition industry has promoted development, which in turn has led to environmental damage. The construction of exhibition buildings has been part of this phenomenon. At first sight improvement in energy efficiency techniques would seem to offset the increased energy demand from both exhibitions and exhibition buildings. However, whether energy efficiency technologies truly help to improve building performance to the point where a building is ‘environmentally friendly’ throughout its whole life-cycle is uncertain. This research is part of investigating whether energy efficiency technologies are really the easiest means to lower costs and energy requirements when the whole useful life of an exhibition building is considered. This article investigates the energy use of three case study buildings based on their operating and embodied energy flows. The results suggest that modern technologies for making exhibition buildings more sustainable may not be as effective as the simpler strategies used over 100 years ago. This suggests a different approach may be needed for sustainable development in the twenty first century.
Estonia after the 2007 Cyber Attacks
Authors: Czosseck Christian , Ottis Rain , Talihärm Anna-Maria
Published: November 2011

At the time of the state-wide cyber attacks in 2007, Estonia was one of the most developed nations in Europe regarding the ubiquitous use of information and communication technology (ICT) in all aspects of society. Relaying on the Internet for conducting a range of business transactions is common practice. But naturally, the more a society depends on ICT, the more it becomes vulnerable to cyber attacks. Unlike other research on the Estonian incident, this paper does not focus on the analysis of the events themselves. Instead, the authors examine Estonia’s cyber security policy and subsequent changes made in response to the cyber attacks. As such, the authors provide a comprehensive overview of the strategic, legal, and organisational changes based on lessons learned by Estonia after the 2007 cyber attacks. The analysis is based on a review of national security governing strategies, changes in the Estonia’s legal framework, and organisations with direct impact on cyber security. The paper discusses six important lessons learned and manifested in actual changes: each followed by a set of cyber security policy recommendations appealing to national security analysts as well as nation states developing their own cyber security strategy.
Extending Agile Principles to Larger, Dynamic Software Projects
Authors: Batra Dinesh , VanderMeer Debra , Dutta Kaushik
Published: November 2011

The article evaluates the feasibility of extending agile principles to larger, dynamic, and possibly distributed software development projects by uncovering the theoretical basis for agile values and principles for achieving agility. The extant literature focuses mainly on one theory – complex adaptive systems – to support agile methods, although recent research indicates that the control theory and the adaptive structuration theory are also applicable. This article proposes that at least three other theories exist that are highly relevant: transaction cost economics, social exchange theory, and expectancy theory. By employing these theories, a rigorous analysis of the Agile Manifesto is conducted. Certain agile values and principles find theoretical support and can be applied to enhance agility dynamic projects regardless of size; some agile principles find no theoretical support while others find limited support. Based on the analysis and the ensuing discussion, the authors propose a framework with five dimensions of agility: process, design, people, outcomes, and adaptation.
A Transaction Cost Assessment of a Pervasive Technology Solution for Gestational Diabetes
Authors: Wickramasinghe Nilmini , Troshani Indrit , Hill Sally Rao , Hague William , Goldberg Steve
Published: November 2011

Diabetes is one of the leading chronic diseases affecting Australians and its prevalence continues to rise. It is becoming a serious challenge for both the quality of healthcare and expenditure in the Australian healthcare system. The goal of this study is to investigate the development and application of a pervasive wireless technology solution to facilitate the effective management of diabetes in the context of women with gestational diabetes. Gestational diabetes is a form of diabetes that affects up to 8% of pregnant women. A transactions cost assessment of this solution is also provided. Integral to the success of this solution is the pervasive technology solution which serves to support and facilitate superior diabetes self-management.
A Combined Forecast Method Integrating Contextual Knowledge
Authors: Huang Anqiang , Xiao Jin , Wang Shouyang
Published: November 2011

In the framework of TEI@I methodology, this paper proposes a combined forecast method integrating contextual knowledge (CFMIK). With the help of contextual knowledge, this method considers the effects of those factors that cannot be explicitly included in the forecast model, and thus it can efficiently decrease the forecast error resulted from the irregular events. Through a container throughput forecast case, this paper compares the performance of CFMIK, AFTER (a combined forecast method) and 3 types of single models (ARIMA, BP-ANN, exponential smoothing). The results show that the performance of CFMIK is better than that of the others.
Developing Rich Internet Applications as Social Sites on the Semantic Web
Authors: Hermida Jesús M. , Meliá Santiago , Montoyo Andrés , Gómez Jaime
Published: November 2011

Current Web 2.0 applications, either social sites or Rich Internet Applications, share several problems of interoperability when interconnecting different systems. It is therefore complicated to reuse (or export) the information between sources. In this context, where the value belongs to the data, not the application, the use of Semantic Web technologies opens a way of resolution with mature and standard technologies, thus leading to the Web 3.0. This paper presents the application of Sm4RIA (Semantic Models for RIA), a model-driven design methodology that facilitates the development of semantic RIAs (SRIA), to the design of social network sites. The SRIA approach introduced herein combines the main advantages present in each of the current trends on the Web. In addition to these benefits, the application of a model-driven methodology can speed up the development process and simplify the reuse of external sources of knowledge.
Humidity Sensor Based on ZnO Nanorods Assembled by Dielectrophoresis
Authors: Ai Rui Bo , Miao Feng Juan
Published: November 2011

The preparation and humidity sensing of nanorod-like ZnO materials are studied. Firstly, the ZnO nanoparticles with high specific surface area are prepared via chemical solution growth techniques. Then, some ZnO nanoparticles are manipulated by dielectrophoresis in interdigital electrodes to assemble a capacitive-type humidity sensor. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) are used to determine the structural and morphological properties. The results show that the sensor prototypes have high sensitivity, and it is the potential sensing material for high performance humidity sensors.
Extraction and Antimicrobial Activity of Total Flavones from Zanthoxylum nitidum
Authors: Li Xin She , Hou Juan
Published: November 2011

The total flavones in the root ofZanthoxylum nitidum(Roxb.) DC was extracted with 70% ethanol and the content of the total flavones in it was determined to be 82.9 mg/g by spectrophotometry at wavelength 510 nm based on rutin as standard. Thein vitroantimicrobial activities of the total flavones extract againstStaphylococcus aureus,Bacillus subtilis, Escherichia coli, Salmonella sp,Aspergillus niger,Aspergillus flavus, Penicillium citrinum, Saccharomyces cerevisiae, Rhodotorula glutinis, Aspergillus oryzaewere studied and the minimum inhibitory concentrations were measured to be 0.5, 1.0, 1.0, 1.0, 4.0, 1.0, 2.0, 2.0, 1.0, 1.0 mg/mL, respectively. The results indicate that the flavones inZanthoxylum nitidum (Roxb.)DC possesses strong antimicrobial activity and potentially will be useful for the development of new chemotherapeutic agents against microbial infections.
New Progress in Medical Research of Bio-Humic Acid
Authors: Zhou Xia Ping , Zhang Yi Chao , Zhang Shi Wan , Ban Wei Jing , Yu Wen Feng , Zhang Zhao
Published: November 2011

Humic acids are biological macromolecules. It has been 500 years since “WU-JIN-SAN” (i.e. humic acid) reported in Compendium of Materia Medica. In recent 30 years tens of medical companies and institutions have done regular clinical trials, toxicological and harmacological research on bio-humic acids. Besides, German, Polish, Swiss, Finland et al. have also done similar research, with the similar efficacy of Chinese herbal medicine like “Streagthening Vital Qi's Capacity to Resist Pathogens”, “Readjusting Yin and Yang”, “remedy defects and rectify errors” which build a scientific fundament for medical application of bio-humic acid. Although bio-humic acids was relatively weak in pharmacological studies, it was still traceable. As a drug, how to make a prescription in the pharmacopoeia? This is the key issues which affect the progress in humic medical research. The author consider: First, the use of low-carbon biodegradation reduces the complexity of bio-humic acid molecules,then acoording to the active component by bio-humic acid, Pharmacological-pharmacodynamic, and determining the scope of medical applications could gradually overcome the bottleneck of medical research in bio-humic acid, accelerat the progress of medical research of bio-humic acid.
Research on Chinese Regional Environmental Management Efficiency Based on DEA and Malmquist Index
Authors: Wang Jian Zhong , Chen Tian Ming , Wang Tie Dan , Zhang Wu Yi
Published: November 2011

Based on the analysis of 30 provinces ( except Tibet) in China , this paper used the environmental staffs' number, completed industrial pollution abatement investment amount, waste treatment facilities’ number, the three wastes’ comprehensive utilization output value, and harmless waste treatment capacity as input and output index. The paper evaluated the 30 provinces’ environmental management efficiency (except Tibet) in 2008 and 2009 by Data Envelopment Analysis, then analyzed the time series data of the 30 provinces from 2003 to 2009 by Malmquist index. Study finds that overall Chinese environmental management efficiency’s TFP index is 0.942 in 2009, and decreasing year by year. Besides, it shows that technology is dominant factor of restricting Chinese environmental management efficiency, So, we should increase the investment in science and technology as to improve the efficiency. In addition, the environmental management scale’ expansion and structure optimization are also necessary methods of improving the efficiency.
Experimental Investigation of the Mold Surface Roughness Effect in Microinjection Molding
Authors: Yang Can , Yin Xiao Hong , Castro Jose M. , Yi Allen Y.
Published: November 2011

Microinjection molding has been drawing more and more attention due to its great advantages such as cost effectiveness and mass production capability. In this work, an experimental study was carried out in order to investigate the effect of the mold surface roughness on the achieved filled length of the molded microfeatures. For this purpose, an aluminum mold insert with microchannels having different surface roughness values was designed and fabricated using ultraprecision diamond machining and micromilling method. The experimental results revealed that increasing surface roughness of the microchannel wall led to a decrease in the filled length of the molded microfeatures. It was also found that with increased melt temperature or injection velocity, the effect of surface roughness was weakened by high-pressure trapped air inside the microchannels during injection process. Finally, the influence mechanism of the mold surface roughness was discussed.
Study on Theoretical Elasticity and Plasticity Model of the Stock Price Based on Material Distortion Theory
Authors: Zhang Su , Zhang Zuo Quan , Wu Xuan , Li Xiao Yue , Zhu Rong
Published: November 2011

According to the price volume relationship of the stock, with the help of the elasticity and plasticity theory in the physics, some new ideas like stock equilibrium price, share price elasticity, and share price plasticity are put forward. Then elasticity and plasticity model of the stock price are built on account of the relationship between share price and trading volume, and model parameters are tested by a kind of software calling Eviews from econometrics. In the end, we get relatively scientific result.
A New Method for Multi-Models Estimation
Authors: Yu Yong Yan , Wang Zhi Jian
Published: November 2011

Be dead against the fact that most of algorithms are incapable to solve Multi-Models Estimation effectually,a new method is provided that estimate multi-models with Model-Based Clustering in Conceptual Space.Start from that each data point is represented with a Preference Set of hypotheses models preferred by that poin,and then,the Jaccard distance between two Preference Sets is described as a attribute of a data point, finally, to perform a clustering operation using the improved Cobweb algorithm based on the attribute of the data points.Neither this method requires prior specification of the number of models, nor it necessitate parameters transform,so that it can overcome missing detection and false detection of crossing models.
Ice Accretion Prediction for Single Airfoil and Multi-Element Airfoil
Authors: Sun Zhi Guo , Zhu Cheng Xiang , Zhu Chun Ling
Published: November 2011

Ice accretion on aircraft components is an enormous threat to flight safety. In this paper, ice accretions on the leading edge of the NACA 0012 airfoil and the NLR 7301 multi-element airfoil with flap are predicted using the icing code developed by us. This code mainly contains five modules which are grid module, airflow module, droplet module, heat module, and boundary reconstruction module. The effectiveness and robustness of this code are tested by executing the five modules orderly and repeatedly. The Spalart-Allmaras one-equation turbulence model is adopt to calculate the viscous airflow field and the four-order Runge-Kutta method is used to solve the droplet trajectory equations. In order to enhance the efficiency of the icing calculations, the multi-block grid technique is integrated into the grid module. Based on the above methods, numerical results in both two cases are presented and the necessary comparisons with the experimental data are given in corresponding chapters. The computational results show that performance of the icing code is very good for the wide range of icing conditions.
Study of Stiffness Design of Caliper for Reducing the Weight of an Electro Wedge Brake
Authors: Shin Dong Hwan , An Ji Nung
Published: November 2011

Fuel efficiency necessitates the use of light weight vehicle parts. Conventional researches have shown that an electro wedge brake (EWB) can provide good braking efficiency such as the generation of a large braking force with a small power motor. To further reduce the weight of a brake system, it is necessary to reduce the weight of the structural parts. The braking force is proportional to the clamping force with the coefficient of friction between the brake pad and disc. The clamping force in a brake system is the caliper's stiffness multiplied by the displacement. Therefore, if the caliper has a high stiffness, the EWB size can be compact, with small displacement. Toward this goal, in this paper, we provide a simple design review of the wedge profile related to the caliper stiffness, and design of caliper stiffness for reducing the weight of an electro wedge brake.
Numerical Simulation of Coal Mining Excavation Based on Discontinuous Deformation Analysis
Authors: Gao Ya Nan , Gao Feng , Yeung M.R. , Jiang Qing Hui
Published: November 2011

The movement and deformation of rock stratum occur when the excavation is carries out during the underground mining process. Rock is a continuous-discontinuous material so the continuum mechanics method may not handle the rock problem well. The discontinuous deformation analysis (DDA) method which discretizes the rock mass to block system can describe the large displacement and deformation of rock blocks, especially the rock stratum collapse. The DDA was employed in this paper to analysis a mining excavation process. The displacement field and stress field of rock stratum was computed. The result shows that the DDA can handle the mining excavation and the rock stratum movement and deformation problem well.
Optimization Design of Double Wishbone Independent Suspension Based on ADAMS
Authors: Yang Yi , Huang Hu , Wang Yi Jun , Liu Xin Tian , Zhao Li Hui
Published: November 2011

This document explains and demonstrates how to establish a double wishbone independent suspension based on ADAMS and improve the vehicle’s handing stability and riding comfort by modify the hard point parameters of the suspension.
Design of Dynamic Control on Underwater Vehicle
Authors: Lun Guan De , Liu Yan Cong , Yi Peng , Qu Yang
Published: November 2011

Considering the effects in the gravity, buoyancy, thrust and hydrodynamic on the underwater vehicle, based on the perspective of the dynamic control, established a relatively complete dynamic model of underwater vehicle, analyzed and designed the control system on this base. The control system is consisted of two control loop. Dynamic compensation of the within control loop based on the dynamic characteristic of the vehicle, by the role of the within control loop, the vehicle became an easy to control and a decoupled linear system. Outer control loop achieved a negative feedback control through the use of proportional and differential item on the actual vehicle pose and the posture deviation expected. Adjusted by adjusting the parameter matrix Kd, Kpcan get the desired attenuation of the error, which can achieve precise motion control of underwater vehicles. Simulation results show that: the control model, in the paper, can be built for dynamic control of underwater vehicles, there is a strong anti-interference ability, can better realize the theory of time-varying trajectory tracking.
Rock Burst Analyse in Qirehataer Diversion Tunnel
Authors: Bian Jian Feng , Zhou Jian Jun , Zhao Guo Bin
Published: November 2011

Rock burst is a geological hazard which occurs when hard and brittle rock mass is excavated under high in-situ stresses or high stress concentration. The Qirehataer diversion tunnel has 15.66 km long at a maximum depth of 1720 m. About 64.5% of the tunnel is located in gneissic granite. During excavation of the tunnel, light to moderate rock burst occurred in about 300 m length of the tunnel. This paper provides the analysis of the characteristics and stress conditions in the rock burst site using the stress conditions around the excavation, and provides an explanation on the reasons why rock burst occurred from the beginning to middle of the vault on the right side of the tunnel section, and the most serious situation is located at 60° with respect to horizontal. Stress release hole and bolt or bolt and net are used to prevent and manage rock burst which have been shown to be effective in this case.
Mixed Method to Calculate the Sluice Plate on Complicated Foundation
Authors: Dong Chun Liang , Lu Xiao Yu
Published: November 2011

In order to calculate the interaction between complicated foundation and sluice plate conveniently, an effective method was proposed to solve this problem in the paper. This method regarded the sluice plate and foundation as two substructures, which are connected with chain-bars. The unit displacement of the sluice plate and the settlement of the foundation surface are calculated by the analytical method and the finite element method, respectively. And the counter-force of the foundation is calculated by the mixed method. At the same time, the displacement and internal force are calculated by the principle of superposition. All the results reflect the interaction effect between the sluice plate and foundation fairly good.
Numerical Solution of Dynamic Responses of Moving Load on Ice Sheet
Authors: Chen Ke , Tong Xue Feng
Published: November 2011

To study on the breaking mechanism of an ice sheet under moving load, have need for researching the displacement responses of ice sheet. From viscoelastic vibration differential equation of ice sheet, dynamic equation of ice sheet was established under moving load in the cylindrical coordinate system, and the boundary conditions were given for solving differential equations. Used Hankel transform and Laplace transform to solve Green function of ice sheet vibration responses under loading, and derived the displacement response of ice sheet on the base of Green function. The example calculation shows that the displacement responses of ice sheet of 0.5m thickness is got under moving load at different time, the peak position of gravity wave propagation lags behind the loading point.
Seismic Stratigraphy and Seismic Geomorphology: Insights on Characterization of a Carbonate Reservoir
Authors: Duan Ru Tai , Jin Zhen Kui , Suo Chong Hui
Published: November 2011

Seismic stratigraphy and seismic geomorphology provides an indication of a carbonate platform’s internal and external architecture. High quality 3D seismic data integrated with wireline logs and core materials furthers detailed depositional element analysis, lithology prediction and diagenetic modification of the stratigraphic section, which help to build a depositional model, sequence stratigraphy framework and enhance the evaluation of the reservoir potential of this unit and a prediction of fluid flow during hydrocarbon production. This study mainly focus on using 3D seismic data calibrated with core and logs from oil field A to characterize the stratigraphy and geomorphology of the depositional elements of the carbonate reservoir (Aptaian Stage) and infer the process of the deposition where appropriate. Integration of seismic data with well data provides the frame work for reconstruction depositional evolution history the reservoir. The high seismic resolution of the A reservoirs also provides useful analogs for other subsurface reservoirs from similar depositional environments.
Application of Modal Analysis in Local Damage Diagnosis of Steel Beam
Authors: Gong Zhi Guo , Gao Run Dong , Zhao Peng
Published: November 2011

For one cantilever steel beam, according to the stress concentration principle resulted from the small hole, four small holes were drilled at different positions to form the local damage of the steel beam. The modal tests including the displacement modal and the strain modal were conducted before and after the steel beam was damaged. The test results indicated: from the decreased frequency, one could only judge on the whole that the steel beam had been damaged, but could not determine the detailed damaged positions; the detailed damaged positions of the steel beam were also difficult to be determined by the displacement modal test whether by ripple technique or by hammering technique, but could be determined by the strain modal test by hammering technique, especially under the first order of modal. The research achievements can offer some references for the diagnosis of local damage of engineering structures by the strain modal analysis method.
Test to Characterize the Machining Strength Property for the AISI 316L Steel
Authors: Coppini Nivaldo Lemos , Dutra Julio Cesar , Baptista Elesandro Antonio , Da Silva Fortunato Fernando Aparecido Pacheco , Ferreira Francisco Augusto Alves , Coccumazzo Diego
Published: November 2011

This paper explores the effect of grain size on machining strength in an Fe-Cr-Ni alloy (AISI 316L). Ideal grain growth law [1], was used to obtain the activation energy level for this steel, which was 185 kJ.mol-1[2]. The initial grain size was measured (12 μm) and considering these values, both temperature and time values needed to achieve a final grain size ten times larger than the initial one, could be calculated, which were 1200°C and 2 hours. Ternary phase diagram analysis showed that austenite was stable at this temperature. Following, samples of 200 mm length were annealed and quenched in water to prevent any formation of sigma (μ) phase. Annealed and as-received bars were then used to compare their machining strength. Results showed that the machining strength is higher in the as received condition than the one after annealing (127 μm). It may be concluded that the bigger the grain size, the lower its machining strength. It is believed that this is caused by the pile-up of dislocations on grain boundaries, since this material exhibits large plastic deformation before fracture.
The Dynamic Strength Calculation on the Reel Fulcrum Bearing and Gear Box Bed Plate of Crane Based on ADAMS and Mechanical Property
Authors: Wu Feng Qi , Xu Hai Xiang , Tang Xiao Ying , Yu Zhong Jian
Published: November 2011

Based on the actual crane accident occurring in strange cases, the calculating process is that the reel bearing seat model based on ADAMS is established after hoisting wire rope is broken, which is used for the dynamic strength analysis on the damage of the gear box bed plate & reel fulcrum bearing of crane, and the calculating result of the dynamic model is used as the input item for the load calculation analysis. Metallographic analysis & mechanics service test are applied to material strength analysis. This is an effective method for the modeling analysis of complex crane accidents based on multi-body dynamics, which provides practical and theoretical support for the design and calculation of cranes.
The Liquefaction Risk Analysis of Fine Sand Filling Subgrade
Authors: Zhang Hai Xia , Bai Yu Feng , Lv Yue Jing
Published: November 2011

It is signality for the Yangtse River estuary fine sand filling the highway subgrade which accounting for the lacking of filler and protecting along the line environment. Experiment results indicate that the sand has high strength, low compressibility, and good water stability. But the fine sand has some characteristics as grain uniformity, badness gradation, single structure, and the fine grain, and the fine sand filling subgrade is built on the soft soil foundation with high water table, so it is hidden troubles for the fine sand filling subgrade extending and application whether it can liquefy under the tempestuous earthquake load. The paper establish the liquefaction condition, carry through the liquefaction experiments and analysis the subgrade liquefaction risk relying on the Chong Ming connection engineering of Changjiang tunnel and bridge engineering. The analysis results indicate that the yangtse river estrary fine sand cannot liquefy with 7 class earthquake load, and it has no liequefaction conditions. So the subgrade has low liquefaction risk, and can be widely application.
Studies on Dynamic Mechanical Properties of Glass Fiber Reinforced Silica Aerogel
Authors: Wu Hai Jun , Li Da Long , Zhu Shu Ren , Huang Feng Lei
Published: November 2011

The stress-strain curves of glass-fiber reinforced silica aerogels (GRSA) are obtained by carrying out the quasi-static and split Hopkinson pressure bar (SHPB) experiments. The dynamic compression process of experimental materials are precisely controlled with the “frozen strain” method, and the effects of relative density, diameter and strain rate on dynamic compressive mechanical properties are discussed. Then the compressed samples are observed with scanning electron microcopy (SEM). Considering the Sherwood-Frost constitutive relation and contribution of gas to the strength of the material, the macroscopic phenomenological constitutive relation of this material is developed.
3D FEM Simulation Analysis for the Residual Stress to GTAW Welded Joints Based on Adscititious Magnetic Field
Authors: Zhong Qi Lin , Jiang Shu Yuan , Chen Huan Ming , Liu Pin
Published: November 2011

Aiming at adscititious magnetic field effect GTAW arc, decrease the maximum welding residual which by arc shape be changed, avoid the temperature excessive focus on welding pool, reduce temperature gradient and so on. Arc heat source model of GTAW under the magnetic field was established, also consider physical properties of materials varying with the temperature and the influence transformation, through the method of killing or activating elements treatment such as melting or solidification by welding pool, 3D FEM simulation analysis for the temperature gradient and residual stress size distribution to GTAW welded joints compared to on magnetic field or not. The results show that maximum weld longitudinal residual stress and transverse residual stress were respectively reduced by 12.3% and 13.6% when compared to no magnetic field, also have blind hole measuring method measure welding residual stress, Test measurement and simulation values were basically consistent.