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A facile strategy to construct multifunctional microencapsulated urea ammonium polyphosphate for epoxy resins towards satisfied fire safety, thermal stability and compatibility
epoxy resin fire safety mechanical properties microencapsulation urea ammonium polyphosphate
2023/11/16
Enhancing the fire safety of epoxy resin (EP) concomitant with less mechanical performance degradation is still a challenge for traditional flame retardants. Hence, polypyrrole (PPy) was used as a fil...
Influence of polymer-coated slow-release urea on total tract apparent digestibility, ruminal fermentation and performance of Nellore steers
Slow-release Urea Ammonia Average Daily Gain Non-protein Nitrogen
2017/3/7
Two experiments were performed to evaluate the effects of coated slow-release urea on nutrient digestion, ruminal fermentation, nitrogen utilization, blood glucose and urea concentration (Exp 1), and ...
Guar gum does not impair the absorption and utilization of dietary nitrogen but affects early endogenous urea kinetics in humans
Guar gum dietary nitrogen urea kinetics
2016/6/14
Viscous gums enhance viscosity in the upper gastrointestinal
lumen, quickly disturbing motility and promoting
fluid secretion.
Concentration of Omega-3 Polyunsaturated Fatty Acids from Rana Egg Oil by Urea Complexation and Response Surface Methodology
Omega-3 Polyunsaturated Fatty Acids Oil
2016/6/2
The optimum enrichment parameters of main omega-3 polyunsaturated fatty acids (ω-3 PUFAs) from Rana egg oil were investigated. Firstly, it was optimized the saponification condition. Secondly, the PUF...
Incorporation of urea and ammonia nitrogen into ileal and fecal microbial proteins and plasma free amino acids in normal men and ileostomates
Ammonia urea nitrogen metabolism
2016/6/2
The importance of urea nitrogen reutilization in
the amino acid economy of the host remains to be clarified.
Effects of Combining Feed Grade Urea and a Slow-release Urea Product on Performance, Dietary Energetics and Carcass Characteristics of Feedlot Lambs Fed Finishing Diets with Different Starch to Acid Detergent Fiber Ratios
Slow-release Urea Finishing Lambs Growth Performance Dietary Energetics Carcass
2016/12/28
Recent findings have shown that microbial nitrogen flow and digestible energy of diets are increased when urea is combined with a slow-release urea (SRU) in diets with a starch to acid detergent fibre...
Effects of Rice Straw Supplemented with Urea and Molasses on Intermediary Metabolism of Plasma Glucose and Leucine in Sheep
Intermediary Metabolism Molasses Rice Straw Sheep Stable Isotope Urea
2016/5/20
An isotope dilution method using [U-13C]glucose and [1-13C]leucine (Leu) was conducted to evaluate the effects of rice straw supplemented with urea and molasses (RSUM-diet) on plasma glucose and Leu t...
Improvement of Nutritive Value and In vitro Ruminal Fermentation of Leucaena Silage by Molasses and Urea Supplementation
Leucaena Silage Rumen Fermentation In vitro Gas Production Urea Molasses
2016/11/10
Leucaena silage was supplemented with different levels of molasses and urea to study its nutritive value and in vitro rumen fermentation efficiency. The ensiling study was randomly assigned according ...
柴油机Urea-SCR控制系统设计与试验
重型柴油机 SCR系统 控制策略 标定
2016/12/19
SCR后处理技术是目前降低柴油机NO x 排放量的主流技术，首先基于自主开发的SCR控制系统，阐述了系统的组成、工作及反应原理。其次通过协调控制策略以确保系统内部各模块运转正常，通过原机排放模型和化学反应动力学模型作为前馈控制得到尿素基本供给量，通过排温修正模型进行瞬态排温修正，利用发动机排温和储氨量的对应关系对氨泄漏进行有效控制，根据OBD法规要求当发动机NO x 排放量超标时进行报错。最后对系...
Simple, selective, and sensitive measurement of urea in body fluids of mammals by reversed-phase ultra-fast liquid chromatography
urea derivatization liquid chromatography
2015/6/23
The presented
chromatographic procedure is especially suitable for preparation of reference sample sets, very accurate and
precise research purposes or rapid clinical diagnostic with smaller sampl...
Relationships between milk urea and production and fertility traits in Holstein dairy herds in the Czech Republic
dairy cow reproduction probability of conception
2015/6/8
The objective of this study was to determine how the concentration of milk urea (MU) and FPCM production affect reproduction in selected Holstein dairy herds in the Czech Republic. A retrospective, ob...
Reliability of results of milk urea analysis by various methods using artificial milk control samples
cow milk urea method of analysis result reliability recovery correlation
2015/6/5
The milk urea concentration (MUC) is a respected indicator of the health and nutrition status of dairy cows. It is in relation to their reproduction performance, longevity and technological milk indic...
Relationships between the results of various methods of urea analysis in native and enriched milk
cow milk urea analytical methods result reliability recovery correlation
2015/6/5
Milk urea concentration (MUC) is a suitable indicator of the health and nutrition state of dairy cows. MUC is in relation to their reproduction performance, longevity and technological milk indicators...
Effect of herd, parity, stage of lactation and milk yield on urea concentration in milk
dairy cow milk urea non-nutritional factors
2015/6/2
The objective of this study was to determine how non-nutritional factors such as herd, parity, days in milk, milk production, and milk components affect the concentration of milk urea. A retrospective...
Responses of milk urea nitrogen content to dietary crude protein level and degradability in lactatingHolsteindairy cows
protein level protein degradability milk urea N lactating cos
2015/6/2
Two experiments were conducted to investigate the effects of dietary crude protein level and degradability on milk urea nitrogen (MUN) content. In experiment 1, twelve multiparous lactating cows avera...