scholarly journals RESEARCH ON SHEAR PERFORMANCE OF COMPONENTS CONNECTED BY BEECH AND SELF-TAPPING SCREW COMPOSITE DOWELS

Wood Research ◽  
2021 ◽  
Vol 66 (6) ◽  
pp. 955-968
Author(s):  
XUDONG ZHU ◽  
YINGYING XUE ◽  
XUEWEN ZHANG ◽  
PENGFEI QI ◽  
JIE SHEN ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Linear Equation ◽  
Failure Modes ◽  
Maximum Load ◽  
The Other ◽  
Test Results ◽  
Other Hand ◽  
Shear Performance ◽  
Group B ◽  
Better Than

This study examined the properties of components connected by beech and self-tapping screw composite dowels (group C). As a contrast, the components connected by beech dowels and self-tapping screws individually were tested. The test results indicated that the properties of the components connected by beech dowels (group B) were better than those connected by self-tapping screws (group S), except the ductility coefficient, final displacement, and energy consumption. On the other hand, the main failure modes of groups B and S were the broken beech dowel and the bent self-tapping screw, respectively. For group C, two peak values could be found which were larger than the maximum load of groups B and S, respectively. The properties of group C were better than those of groups B and S, except that the final displacement and energy consumption were located between those of groups B and S. Meanwhile, the linear equation in two unknowns have be found between groups B, S and C.

Mathematical Ability and Masculinity

1960 ◽  
Vol 7 (1) ◽  
pp. 19-21 ◽  
Author(s):  
Philip Lambert
Keyword(s):  
Mathematical Ability ◽  
The Other ◽  
Early Age ◽  
Test Results ◽  
Men And Women ◽  
General Acceptance ◽  
Other Hand ◽  
The Subject ◽  
Innate Ability ◽  
Better Than

The idea that men are Better than women at mathematics has been widespread. Many writers on education have taken it for granted; a few have tried to prove it. Unfortunately, the general acceptance of this assumption distorts the test results; achievement rather than innate ability is measured. A comparison of the scores of men and women on various kinds of arithmetic tests is not conclusive, since ability to do arithmetic is partly the result of past and present interest in the subject. Even at an early age, boys are expected to be interested in mathematics. Girls, on the other hand, though they may have equal ability, may be discouraged from learning by the prevailing idea that mathematics is a masculine field.

Closing the GAP—A 5Å Scanning Microscope

1969 ◽  
Vol 27 ◽  
pp. 6-7
Author(s):  
A. V. Crewe
Keyword(s):  
Normal Form ◽  
The Other ◽  
Resolving Power ◽  
Scanning Microscope ◽  
Conventional Microscope ◽  
Other Hand ◽  
Closing The Gap ◽  
Thermal Sources ◽  
Better Than ◽  
Transmission Microscope

We have become accustomed to differentiating between the scanning microscope and the conventional transmission microscope according to the resolving power which the two instruments offer. The conventional microscope is capable of a point resolution of a few angstroms and line resolutions of periodic objects of about 1Å. On the other hand, the scanning microscope, in its normal form, is not ordinarily capable of a point resolution better than 100Å. Upon examining reasons for the 100Å limitation, it becomes clear that this is based more on tradition than reason, and in particular, it is a condition imposed upon the microscope by adherence to thermal sources of electrons.

Study on shear performance of the connection with external stiffening ring between square steel tubular column and unequal-depth steel beams

2020 ◽  
pp. 136943322098166
Author(s):  
Shuhao Yin ◽  
Bin Rong ◽  
Lei Wang ◽  
Yiliang Sun ◽  
Wuchen Zhang ◽  
...  
Keyword(s):  
Failure Modes ◽  
Plastic Hinge ◽  
Steel Tube ◽  
Nonlinear Finite Element ◽  
Steel Beams ◽  
Finite Element Models ◽  
Test Results ◽  
Panel Zone ◽  
Load Paths ◽  
Shear Performance

This paper studies the shear performance of the connection with the external stiffening ring between the square steel tubular column and unequal-depth steel beams. Two specimens of interior column connections were tested under low cyclic loading. The deformation characteristics and failure modes exhibited by the test phenomena can be summarized as: (1) two specimens all exhibited shear deformation in steel tube web of the panel zone and (2) weld fracture in the panel zone and plastic hinge failure at beam end were observed. Besides, load-displacement behaviors and strain distributions have been also discussed. The nonlinear finite element models were developed to verify the test results. Comparative analyses of the bearing capacity, failure mode, and load-paths between the equal-depth and unequal-depth beam models have been carried out.

In vitro insulin-mimetic activity and in vivo metallokinetic feature of oxovanadium(IV)porphyrin complexes in healthy rats

2012 ◽  
Vol 16 (01) ◽  
pp. 114-121 ◽  
Author(s):  
Tapan K. Saha ◽  
Yutaka Yoshikawa ◽  
Hirouki Yasui ◽  
Hiromu Sakurai
Keyword(s):  
The Other ◽  
Insulin Mimetic ◽  
Other Hand ◽  
Better Than

We prepared [meso-tetrakis(4-carboxylatophenyl)porphyrinato]oxovanadium(IV) tetrasodium, ([VO(tcpp)]Na4), and investigated its in vitro insulin-mimetic activity and in vivo metallokinetic feature in healthy rats. The results were compared with those of previously proposed insulin-mimetic oxovanadium(IV)porphyrin complexes and oxovanadium(IV) sulphate. The in vitro insulin-mimetic activity and bioavailability of [VO(tcpp)]Na4 were considerably better than those of [meso-tetrakis (1-methylpyridinium-4-yl)porphyrinato]oxovanadium(IV)(4+) tetraperchlorate ([VO(tmpyp)](ClO4)4) and oxovanadium(IV) sulphate. On the other hand, [VO(tcpp)]Na4 and [meso-tetrakis(4-sulfonatophenyl) porphyrinato]oxidovanadate(IV)(4-)([VO(tpps)]) showed very similar in vitro insulin-mimetic activity and in vivo metallokinetic feature in healthy rats. In particular, the order of in vitro insulin-mimetic activity of the complexes was determined to be: [VO(tcpp)]Na4 ≈ [VO(tpps)] > ([VO(tmpyp)](ClO4)4 > oxovanadium(IV) sulphate.

Distinction between Dolus and Culpa with reference to Arson in Zakon Sudnyj LJudem, the Vinodol Law and the Statute of Senj

De Jure ◽  
2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Daniel Haman ◽  
◽  
◽  
Keyword(s):  
Criminal Law ◽  
The Other ◽  
Legal Documents ◽  
The Third ◽  
Other Hand ◽  
Criminal Offenses ◽  
The World ◽  
The Difference ◽  
Different Levels ◽  
Better Than

The difference between intent (dolus) and negligence (culpa) was rarely emphasized in codified medieval laws and regulations. When compared to the legal statements related to intent, negligence was mentioned even more rarely. However, there are some laws that distinguished between the two concepts in terms of some specific crimes, such as arson. This paper draws attention to three medieval Slavic legal documents – the Zakon Sudnyj LJudem (ZSLJ), the Vinodol Law and the Statute of Senj. They are compared with reference to regulations regarding arson, with the focus being on arson as a crime committed intentionally or out of negligence. The ZSLJ as the oldest known Slavic law in the world shows some similarities with other medieval Slavic legal codes, especially in the field of criminal law, since most of the ZSLJ’s articles are related to criminal law. On the other hand, the Vinodol Law is the oldest preserved Croatian law and it is among the oldest Slavic codes in the world. It was written in 1288 in the Croatian Glagolitic script and in the Croatian Chakavian dialect. The third document – the Statute of Senj – regulated legal matters in the Croatian littoral town of Senj. It was written in 1388 – exactly a century after the Vinodol Law was proclaimed. When comparing the Vinodol Law and the Statute of Senj with the Zakon Sudnyj LJudem, there are clear differences and similarities, particularly in the field of criminal law. Within the framework of criminal offenses, the act of arson is important for making a distinction between intent and negligence. While the ZSLJ regulates different levels of guilt, the Vinodol Law makes no difference between dolus and culpa. On the other hand, the Statute of Senj strictly refers to negligence as a punishable crime. Even though the ZSLJ is almost half a millennium older than the Statute of Senj and around 400 years older than the Vinodol Law, this paper proves that the ZSLJ defines the guilt and the punishment for arson much better than the other two laws.

scholarly journals Studi Komparatif Kinerja Bank Syariah Dan Bank Konvensional Dalam Menghadapi Krisis Global Berdasarkan Rasio Keuangan

2009 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Rohmawati Kusumaningtias
Keyword(s):  
Financial Crisis ◽  
Economic Crisis ◽  
Banking Sector ◽  
T Test ◽  
The Other ◽  
Other Hand ◽  
Better Than ◽  
Productive Employment

AbstractAt the time of financial crisis, one of the influential institutions in society is banking. Banking sector provide soft loans to create productive employment for the community. On the other hand, customers also need the liquidity from bank-ing. These stakeholders' needs can be met by looking at the performance of bank-ing. This study aims to determine differences in the performance of sharia banking and conventional banking during economic crisis. This study uses t-test to analyze the data. From the research, it was found that in general, the performance of conventional banking is better than sharia banking in the economic crisis.

scholarly journals THE APPLICATION OF AMINO – AND HYDROXYETHYL IMIDAZOLINES OF PETROLEUM ACIDS AS MULTIFUNCTIONAL ADDITIVES FOR DIESEL FUEL

2016 ◽  
Vol 11 (10) ◽  
pp. 3828-3833
Author(s):  
Anar Amil Namazov ◽  
Vagif Maharram Abbasov ◽  
Tarana Aslan Mammadova ◽  
Khayyam Rahim Valiyev ◽  
Khayala Hamlet Kasamanli
Keyword(s):  
Diesel Fuel ◽  
Boiling Point ◽  
The Other ◽  
Antistatic Property ◽  
Other Hand ◽  
Multifunctional Additives ◽  
Antistatic Effect ◽  
Over Time ◽  
Better Than ◽  
Petroleum Acid

In this research, the influence of amino- and hydroxyethyl imidazolines of petroleum acids on the antistatic property and lubricity of diesel fuel has been studied. The researches illustrated that when the boiling point of petroleum acid fractions increases, the influence of imidazolines on the antistatic property and lubricity of diesel fuel decreases. Besides, it has been known that, the influence of aminoethyl imidazolines of petroleum acids on the antistatic property and lubricity of diesel fuel is better than the influence of hydroxyethyl imidazolines, On the other hand, it has been revealed that, when imidazolines of petroleum acids are added to the diesel fuel, the antistatic effect increases over time.

Interpretation of 25-OH-D3, NEFA, and calcium correlations among cow and calf pairs

2025 ◽  
Vol 77 (04) ◽  
pp. 6511-2025
Author(s):  
SONGUL ERDOGAN ◽  
KEREM URAL ◽  
HASAN ERDOGAN ◽  
DENIZ ALIC URAL ◽  
MEHMET GULTEKIN ◽  
...  
Keyword(s):  
Energy Balance ◽  
Vitamin D3 ◽  
Colorimetric Method ◽  
Negative Energy ◽  
The Other ◽  
Negative Energy Balance ◽  
Test Results ◽  
Blood Samples ◽  
Other Hand ◽  
Cow Calf

In the present study, the aim was to determine alteration of NEFA, calcium and vitamin D3 levels in cow and calf pairs at parturition as well as correlation between each parameter levels. For this purpose, a cow-side device employing the enzymatic colorimetric method was used for measurement of NEFA and calcium levels. On the other hand, serum 25(OH)D3 analysis was performed using the fluorescence immunochromatographic method at the laboratory in the Faculty. Blood samples were taken from Vena jugularis of 15 Simmental cow and calf pairs immediately after parturition and placed in serum and heparinized tubes. In cow and calf pairs, concentration of vitamin D3 (15.6-120 and 31.8-120 ng/mL, respectively), NEFA (0.12-1.2 and 0.09-0.8 mmol/L, respectively) and calcium (1.8 ± 0.9 and 2.2 ± 0.6 mmol/L, respectively) were determined. There was no significant correlation between NEFA, Ca, and vitamin D3 in cows and calf pairs. Taking into account several co-factors that influenced test results, which could not easily be excluded, further studies may be warranted with larger cow-calf pair populations. In conclusion, vitamin D3 concentration in calves is not affected by the negative energy balance of dams in the parturition period.

The magnetic flux and self-inductivity of a thick toroidal current

2007 ◽  
Vol 73 (5) ◽  
pp. 741-756 ◽  
Author(s):  
TOMISLAV ŽIC ◽  
BOJAN VRŠNAK ◽  
MARINA SKENDER
Keyword(s):  
Aspect Ratio ◽  
Magnetic Flux ◽  
Magnetic Energy ◽  
The Other ◽  
Poloidal Field ◽  
Other Hand ◽  
Radial Profiles ◽  
Internal Flux ◽  
The Difference ◽  
Better Than

AbstractWe investigate numerically the magnetic flux and self-inductivity of a toroidal current I of arbitrary aspect ratio (R0/r0 = 1/η, where R0 and r0 are the major and the minor torus radii, respectively). The total flux Ψ is represented by the sum of the flux outside the torus envelope (Ψo) and the internal flux within the torus body (Ψi). Analogously, the total inductivity is expressed as L = Lo + Li. The outside self-inductivity is determined directly from the magnetic flux Ψo, utilizing Ψo = LoI. On the other hand, the internal inductivity is evaluated as the magnetic energy contained in the poloidal field. The calculations are performed for three different radial profiles of the current density, j(r).It is found that Ψo(η) and Lo (η) depend only very weakly on the form of j(r). On the other hand, Ψi and Li do not depend on η, but depend on the form of j(r). In the range 0.02 ≲ η ≲ 0.5, the numerical values of Lo can be very well fitted by the function of the form Lofit1(η) = −A log(η) − B. Such a relation is analogous to that for a slender torus, although the coefficients are different. For η ≲ 0.01 the slender-torus approximation (Lo*) matches the numerical results better than our function Lofit1, whereas for thicker tori, Lofit1 becomes more appropriate. It is shown that, beyond η ≳ 0.1, the departure of the slender-torus analytical expression from the numerical values becomes greater than 10%, and the difference becomes larger than 100% at η 0.55. In the range η 0.5, the numerical values of Lo can be very well expressed by the function Lofit2(η)=c1 (1 − η)c2. Furthermore, since the internal flux and inductivity become larger than that outside the envelope, Ψi and Li become larger than Ψo and Lo. The total inductivity Ltotfit = Lofit + Li, calculated by appropriately employing our functions Lofit1 and Lofit2, never deviates by more than 1% from the numerically determined values of Ltot.

Can Wolbachia modulate the fecundity costs of Plasmodium in mosquitoes?

Parasitology ◽  
2017 ◽  
Vol 145 (6) ◽  
pp. 775-782 ◽  
Author(s):  
F Zélé ◽  
J Denoyelle ◽  
O Duron ◽  
A Rivero
Keyword(s):  
Infectious Diseases ◽  
Natural System ◽  
The Other ◽  
Mosquito Vectors ◽  
Fitness Costs ◽  
Other Hand ◽  
Reproductive Losses ◽  
Relationship Of ◽  
Better Than ◽  
Damaging Effects

AbstractVertically transmitted parasites (VTPs) such as Wolbachia are expected not only to minimize the damage they inflict on their hosts, but also to protect their hosts against the damaging effects of coinfecting parasites. By modifying the fitness costs of the infection, VTPs can therefore play an important role in the evolution and epidemiology of infectious diseases.Using a natural system, we explore the effects of a Wolbachia–Plasmodium co-infection on mosquito fecundity. While Plasmodium is known to frequently express its virulence by partially castrating its mosquito vectors, the effects of Wolbachia infections on mosquito fecundity are, in contrast, highly variable. Here, we show that Plasmodium drastically decreases the fecundity of mosquitoes by ca. 20%, and we provide the first evidence that this decrease is independent of the parasite's burden. Wolbachia, on the other hand, increases fecundity by roughly 10%, but does not alter the tolerance (fecundity–burden relationship) of mosquitoes to Plasmodium infection.Although Wolbachia-infected mosquitoes fare overall better than uninfected ones, Wolbachia does not confer a sufficiently high reproductive boost to mosquitoes to compensate for the reproductive losses inflicted by Plasmodium. We discuss the potential mechanisms and implications underlying the conflicting effects of these two parasites on mosquito reproduction.

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