Nutritional evaluation of wheat bran from abrasion milling in backgrounding diets for cattle

Two trials were conducted to evaluate the nutritional value of abrasion milled wheat bran (WB). In Trial 1, 312 Angus steers (303 ± 65kg) were randomly assigned to 1 of 24 pens and fed 1 of 6 diets in a 2x3 factorial design. Treatments included 2 levels of condensed liquid whey (CLW) (0 and 4.6%) and 3 levels of WB (0, 14 and 28%). Diet 1 consisted of 31.8% rolled barley, 40.6% brome grass hay, 13.5% barley silage, 7.3% corn/wheat blend DDGS and 6.9% supplement (DM basis). Diet 2 was identical to diet 1 except 4.6% of the barley was replaced with CLW. In the remaining diets, at each level of CLW, WB replaced barley at 14 and 28% (DM basis). No (P>0.05) No influence (P>0.05) of CLW or any WB by CLW interaction was seen on any parameter. Dry matter intake (DMI) was increased (P0.05) affected by WB inclusion, however gain:feed was reduced (P<0.01). Trial 2 used 5 Angus heifers (584 ± 40kg) in a Latin square design to evaluate the effects of WB on rumen fermentation and nutrient digestibility. The control diet consisted of 36% barley silage, 24% grass hay, 8% supplement and 32% rolled barley (DM basis). Wheat bran replaced barley at 8, 16, 24 and 32% of the diet (DM basis). There was no (P>0.05) effect of treatment on DMI, rumen pH, ammonia-N levels or fluid and particulate passage rate. Feeding WB caused a linear increase (p0.05), but fecal N was increased (P<0.05) in a linear fashion. The results indicate that the energy value of WB is lower than barley grain which leads to decreased feed efficiency and diet digestibility in backgrounding rations, which indicates that inclusion of WB will be price dependent

Automatic Generation of Matrix Element Derivatives for Tight Binding Models

Tight binding (TB) models are one approach to the quantum mechanical many particle problem. An important role in TB models is played by hopping and overlap matrix elements between the orbitals on two atoms, which of course depend on the relative positions of the atoms involved. This dependence can be expressed with the help of Slater-Koster parameters, which are usually taken from tables. Recently, a way to generate these tables automatically was published. If TB approaches are applied to simulations of the dynamics of a system, also derivatives of matrix elements can appear. In this work we give general expressions for first and second derivatives of such matrix elements. Implemented in a computer program they obviate the need to type all the required derivatives of all occuring matrix elements by hand.Comment: 11 pages, 2 figure

Aplikasi Model Optimasi Untuk Meningkatkan Efisiensi Pengangkutan Sampah Di Kota Cilegon

Most cities in developing countries face inefficiency problem of waste collection service run by government. The purpose of this study is to estimate the efficiency of waste collection service and the capital cost requirement in 2019 to cover 100% waste collection service in Cilegon City. The efficiency is calculated by comparing the current costs with the optimization costs by the model of vehicle routing problem. The result shows that the obtained inefficiency reaches 37,48% which largely comes from the labor component. To cover all of resident in Cilegon City, the city needs to increase their budget allocation as much as IDR 33,884 billion in 2019

Bar simplicial modules and secondary cyclic (co)homology

Abstract. In this paper we study the simplicial structure of the complex C•((A, B, );M), associated to the secondary Hochschild cohomology. The main ingredient is the simplicial object B(A,B, ), which plays a role equivalent to that of the bar resolution associated to an algebra. We also introduce the secondary cyclic (co)homology and establish some of its properties (Theorems 3.9 and 4.11).https://digitalcommons.snc.edu/faculty_staff_works/1014/thumbnail.jp

The Trigger Mechanism of Recurrent Solar Active Region Jets Revealed by the Magnetic Properties of a Coronal Geyser Site

Solar active region jets are small-scale collimated plasma eruptions that are triggered from magnetic sites embedded in sunspot penumbral regions. Multiple trigger mechanisms for recurrent jets are under debate. Vector magnetic field data from SDO-HMI observations are used to analyze a prolific photospheric configuration, identified in extreme ultraviolet observations as a `Coronal Geyser', that triggered a set of at least 10 recurrent solar active region jets. We focus on interpreting the magnetic fields of small-scale flaring sites aiming to understand the processes that govern recurrent jet eruptions. We perform a custom reprocessing of the SDO-HMI products, including disambiguation and uncertainty estimation. We scrutinized the configuration and dynamics of the photospheric magnetic structures. The magnetic configuration is described via the analysis of the photospheric magnetic vertical fields, to identify the process is responsible for driving the jet eruptions. We report that the two widely debated magnetic trigger processes, namely magnetic flux cancellation and magnetic flux emergence, appear to be responsible on a case by case basis for generating each eruption in our set. We find that 4 of 10 jets were due to flux cancellation while the rest were clearly not, and were more likely due to flux emergence.Comment: 19 pages, 6 figure, and 1 table. The Astrophysical journal, In pres

Media Penunjang Informasi dan Promosi Berbentuk Katalog Produk pada PT. Ideal Formica Purnatata Tangerang

Visual communications media plays an important role in the self-introduction a company primarily in supporting information and promotion. One of the visual communication media is very important in supporting the successful sale of the company is a media product catalog. Companies in need of information and promotional media such as print media, because the media is effective compared with other media such as video profile. PT. Ideal Formica Purnatata is a company engaged in the manufacture of products and architectural interiors. The purpose of this study, so that the company can achieve its sales target of each product marketed. To obtain accurate data in the preparation of the study, there is the research methodology used are: problem analysis methods, data collection methods, methods of design analysis and methods of design concepts. The problem that exists is the lack of information and promotional media such as media product catalog. Visual communication media has a method of designing one form of material used is 260 g carton art and art paper 120 gr. The choice of material is in use because of the materials according to the media catalog. Media design through product catalogs, is expected to increase the attractiveness of the consumer to use the services and products of PT. Ideal Formica Purnatata, so that the sales target is reached, the company\u27s turnover increased, and PT. Ideal Formica Purnatata widely known

Tensile behaviour of polyethylene under different loading rates in the presence of imperfections

This paper highlights the changes of polyethylene behaviour during various loading rates. The experimental programme was carried out on samples taken from PE80 polyethylene gas pipes with simulated imperfections with bilateral V-notch, U-notch and central hole. The hybrid technique tensile test - infrared test was used for examining the fracture behaviour of PE80 thermoplastic material samples under different loading rates. Correlation between the loading rate and tensile strength of polyethylene has been established. It has been shown that tensile strength varies with loading rate according to a logarithmic law. Also, it was shown that viscoelastic-plastic character of the polymer material influences directly the specific response of material to loading rates

Tensile behaviour of polyethylene under different loading rates in the presence of imperfections

This paper highlights the changes of polyethylene behaviour during various loading rates. The experimental programme was carried out on samples taken from PE80 polyethylene gas pipes with simulated imperfections with bilateral V-notch, U-notch and central hole. The hybrid technique tensile test - infrared test was used for examining the fracture behaviour of PE80 thermoplastic material samples under different loading rates. Correlation between the loading rate and tensile strength of polyethylene has been established. It has been shown that tensile strength varies with loading rate according to a logarithmic law. Also, it was shown that viscoelastic-plastic character of the polymer material influences directly the specific response of material to loading rates