Results 91 to 100 of about 712 (184)

The Effects of N-acetyl Tryptophan and Omega-3 Feeding During the Transition Period on Relative Expression of Genes Related to Endocannabinoid System in Adipose Tissue of Holstein Cows [PDF]

Archives of Razi Institute
Introduction: The transition period in dairy cows is marked by significant metabolic, endocrine, and immunological transformations, often contributing to negative energy balance and enhanced susceptibility to metabolic diseases.
Mansoureh Ghorbanalinia, Essa Dirandeh, Zarbakht Ansari-Pirsaraei, Hasan Sadri, William W. Thatcher   +4 more
doaj   +1 more source

Holstein ineklerde iki ön senkronizasyon protokolünün (G6G ve PG-3-G) bazı reprodüktif performans parametreleri üzerindeki etkilerinin karşılaştırılması

, 2020
Amaç: Bu çalışmada postpartum 28-40 günler arasında uygulanan G6G ve PG3-G ön senkronizasyon protokollerinin Holstein ineklerde bazı üreme parametreleri üzerindeki etkilerinin belirlenmesi amaçlanmıştır. Gereç ve Yöntem: G6G grubundaki ineklere (n=35) 0.
Dinç, Dursun Ali, Kutlu, Metehan
core   +1 more source

Adaptive linear active disturbance-rejection control strategy reduces the impulse current of compressed air energy storage connected to the grid

Global Energy Interconnection
The merits of compressed air energy storage (CAES) include large power generation capacity, long service life, and environmental safety. When a CAES plant is switched to the grid-connected mode and participates in grid regulation, using the traditional ...
Jianhui Meng, Yaxin Sun, Zili Zhang
doaj   +1 more source

Modifying the Double-Ovsynch Protocol to include Human Chorionic Gonadotropin to Synchronize Estrus in Dairy Cattle [PDF]

, 2011
The objectives of this study were to determine whether conception, ovulation rates, presynchronization rates, or follicle and CL characteristics were altered after modifying the Double-Ovsynch (DO) protocol to include human chorionic gonadotropin (hCG ...
Binversie, Joseph Andrew
core  

Active Support Pre-Synchronization Control and Stability Analysis Based on the Third-Order Model of Synchronous Machine

Energies
When traditional grid-forming converters directly participate in the grid-connected operation of the power grid, due to the lack of a pre-synchronization control system, the voltage amplitude and initial phase on both sides of the grid-connected point ...
Chuang Liu, Yuemei Zhi, Zhida Su, Zedong Yang, Limin Yin, Jiawei Man, Yuze Yang   +6 more
doaj   +1 more source

Pre-Synchronization Virtual Synchronous Generator Grid-Connection Strategy Based on Fuzzy Active Disturbance Rejection for Photovoltaic Storage

发电技术
ObjectivesVirtual synchronous generator (VSG) technology is extensively utilized for its capability to regulate damping and inertia during inverter grid connection.
LI Tao, ZHANG Chun, HU Tiancheng
doaj   +1 more source

Research on Multi-Machine Pre-Synchronization Control and Optimization Based on Parallel Recovery Black Start

Energies
With the increasing prevalence of renewable energy, microgrids play a crucial role in enhancing distributed energy efficiency and system flexibility. However, the intermittent and unpredictable nature of renewable energy generation presents significant ...
Zhongping Ruan, Shuye Ding, Yizhi Chen
doaj   +1 more source

Endometrial gene expression of lactating Holstein cows: Impact of pre-estrus progesterone and intensity of estrous expression

Journal of Dairy Science
: This study aimed to evaluate if different concentrations of progesterone (P4) before estrus and different intensities of estrous expression affected endometrial gene expression in lactating Holstein cows.
J.C.S. Marques, J.P.O. Maciel, J. Denis-Robichaud, A.M.L. Madureira, R.S. Conceicao, S. Moore, A. Conley, F. Lima, C.C. Bartolomeu, W.A. Gomes, R.L.A. Cerri   +10 more
doaj   +1 more source

Assessing the Value of Coordinated Sire Genetics in a Synchronized AI Program [PDF]

Synchronized artificial insemination was used to inseminate cows using different types of sire genetics, including low-accuracy, calving-ease, and high-accuracy. These three calf sire groups were compared to calves born to cows bred using natural service.
Patterson, David J., Schaefer, Daniel, Kerley, Monty S., Haden, Kent, John, Mike, Parcell, Joseph L.   +5 more
core  

Pre-Synchronization Control Strategy for Virtual Synchronous Generator Grid Connection Based on Voltage Mathematical Relationships

IEEE Access
Conventional pre-synchronization control strategies for grid-connected virtual synchronous generator typically involve phase-locked loops, coordinate transformations or other non-linear computations, which may lead to substantial hardware resource ...
Yulin Kuang, Fujun Ma, Cheng Yang, Qiaoling Peng, Gelin Huang   +4 more
doaj   +1 more source