Abstract: The disclosure relates to a batch management method for improving the farrowing rate or the number born alive in swine. It includes the following steps: synchronization of estrus in swine are used an exogenous gonadotropin(s) to synchronize follicular development, and then fed with 1-[bis(4-cyanophenyl)alkyl]-1,2,4-triazole after 6-12 hours. Next the gilts or sows are bred in batches after treated with ovulation-inducing drug(s). The disclosure can effectively alleviate decreased farrowing rate and number of piglets born alive in the batch gilts or sows used the fixed-time artificial insemination, without influencing the serum estrogen level, estrus and ovulation time in mated gilts or sows. Therefore, a novel method for improving the reproductive efficiency of gilts or sows will be established, which is valuable for popularizing batch farrowing in swine including with fixed-time artificial insemination.

Abstract: An image acquisition method. N images of an object to be shot are acquired. The N images are shot by N shooting devices. Shooting fields of view of the N shooting devices are different from each other. The N images are in one-to-one correspondence with the N shooting devices. Feature extraction is performed on the N images to obtain M features of the N images. M is an integer multiple of N. The M features include M/N types of features.

Abstract: The present disclosure discloses a composition, method and application thereof for improving the quality of in vitro maturation of oocytes and the pregnancy rate after in vitro produced embryos transfer. The present disclosure aims at the problems of low maturation rate and poor subsequent embryo development potential caused by metabolic disorders during in vitro maturation of oocytes, and provides a composition including two or more regulators in vitamin C, L-carnitine and thrombopoietin to regulate the metabolism of oocytes, thereby greatly improving the in vitro maturation rate of oocytes and the subsequent embryo development potential. The present disclosure not only improves the efficiency of in vitro embryo production of livestock, but also provides a reference for improving the efficiency of human assisted reproductive technology. The method is simple, safe and efficient, and has great application value and broad application prospects.

Abstract: An upper cylinder for single crystal furnace is provided, wherein the upper cylinder includes an upper cylinder body. A boss is disposed on an inner bottom of the upper cylinder body, and is configured to place a cover plate of a diversion cylinder. The upper cylinder body is disposed on a thermal insulation layer of the single crystal furnace, and the cover plate of the diversion cylinder drives the diversion cylinder to move up and down inside the upper cylinder body, so that a heat loss is prevented by the upper cylinder body.

Abstract: The present disclosure provides a heat leakage prevention device for a single crystal furnace and a single crystal furnace system including the heat leakage prevention device, wherein the heat leakage prevention device includes a thermal field structure and a plugging device disposed on an outer side of the single crystal furnace, the thermal field structure is provided with a thermal field open for feeding the single crystal furnace, the plugging device is disposed on a side of the thermal field structure close to the single crystal furnace, and the plugging device is movably disposed to expose or completely plug the thermal field open.

Abstract: The disclosure relates to a batch management method for improving the farrowing rate or the number born alive in swine. It includes the following steps: synchronization of estrus in swine are used an exogenous gonadotropin(s) to synchronize follicular development, and then fed with 1-[bis(4-cyanophenyl)alkyl]-1,2,4-triazole after 6-12 hours. Next the gilts or sows are bred in batches after treated with ovulation-inducing drug(s). The disclosure can effectively alleviate decreased farrowing rate and number of piglets born alive in the batch gilts or sows used the fixed-time artificial insemination, without influencing the serum estrogen level, estrus and ovulation time in mated gilts or sows. Therefore, a novel method for improving the reproductive efficiency of gilts or sows will be established, which is valuable for popularizing batch farrowing in swine including with fixed-time artificial insemination.

Abstract: The present disclosure relates to the field of livestock farming, and specifically provides a feeding method for gilts in batch for promoting onset of puberty and alleviating estrus disorder of gilts, which is aiming at an industrial problem that a large number of gilts are culled due to delayed puberty onset or estrus disorder. The method includes: feeding, prior to onset of puberty for gilts with vitamin A combined with lactic acid; and performing, subsequent to the puberty onset of gilts, estrus synchronization treatment and insemination treatment on the gilts. By applying vitamin A combined with lactic acid, the present disclosure alleviates the delayed puberty onset or estrus disorder of the gilts, reduces the feeding duration and feeding cost of the gilts, facilitates synchronous estrus treatment of the gilts.

Abstract: The disclosure relates to the field of biology and provides a breeding method for ameliorating or avoiding the adverse effects of exogenous gonadotropins on reproductive performance, which comprises administrating N-acetylcysteine and vitamin A prior to the exogenous gonadotropin treatment. The disclosure can effectively improve the reproductive performance, including improving the uterine receptivity and pregnancy outcome after exogenous gonadotropins treatment, such as embryo implantation rate, the status of embryo development after implantation, pregnancy rate, live birth, health condition of born offspring, and other effects, by using a combination of N-acetylcysteine and vitamin A.

Abstract: An upper cylinder for single crystal furnace is provided, wherein the upper cylinder includes an upper cylinder body. A boss is disposed on an inner bottom of the upper cylinder body, and is configured to place a cover plate of a diversion cylinder. The upper cylinder body is disposed on a thermal insulation layer of the single crystal furnace, and the cover plate of the diversion cylinder drives the diversion cylinder to move up and down inside the upper cylinder body, so that a heat loss is prevented by the upper cylinder body.

Abstract: The present disclosure provides raw material re-feeding apparatus and monocrystal manufacturing apparatus having the same. The raw material re-feeding apparatus includes a charger body, a storage, a fixed conveyer, a mobile conveyer, and a switching device. The fixed conveyer and the storage are disposed in the charger body, and the fixed conveyer is disposed at a discharging end of the storage for conveying materials. A charging end of the mobile conveyer is aligned with a discharging end of the fixed conveyer, and the mobile conveyer is movable relative to a monocrystal furnace, so that materials flowing out of the fixed conveyer can fall onto the mobile conveyer. The switching device is connected to the charger body and the monocrystal furnace for achieving connection/disconnection between the charger body and the monocrystal furnace.

Abstract: The present disclosure provides a heat leakage prevention device for a single crystal furnace and a single crystal furnace system including the heat leakage prevention device, wherein the heat leakage prevention device includes a thermal field structure and a plugging device disposed on an outer side of the single crystal furnace, the thermal field structure is provided with a thermal field open for feeding the single crystal furnace, the plugging device is disposed on a side of the thermal field structure close to the single crystal furnace, and the plugging device is movably disposed to expose or completely plug the thermal field open.

Abstract: The present application discloses a sensing signal receiving system and method. The system includes an interface module configured to receive a sensing signal, a narrowband frequency-selective module configured to determine a frequency-selective signal in the sensing signal according to a preset receive frequency, a high amplification module configured to amplify the received frequency-selective signal to obtain an amplified signal, and an in-phase comparison module configured to convert the amplified signal into a TTL standard signal. A frequency of the frequency-selective signal is the preset receive frequency or is a narrowband section including the preset receive frequency. The narrowband frequency-selective module is further configured to output the frequency-selective signal to the high amplification module.

Abstract: An image acquisition method. N images of an object to be shot are acquired. The N images are shot by N shooting devices. Shooting fields of view of the N shooting devices are different from each other. The N images are in one-to-one correspondence with the N shooting devices. Feature extraction is performed on the N images to obtain M features of the N images. M is an integer multiple of N. The M features include M/N types of features.

Abstract: The disclosure is provided with a touch panel and driving control method thereof, and a touch display device. The touch panel includes: a first electrode, a second electrode, and a third electrode. The first electrode, the second electrode, and the third electrode are insulated from each other. The first electrode and the second electrode are crosswise arranged to form a touch film layer, and the second electrode and the third electrode are crosswise arranged to form a fingerprint identification film layer.

Abstract: The disclosure is provided with a touch panel and driving control method thereof, and a touch display device. The touch panel includes: a first electrode, a second electrode, and a third electrode. The first electrode, the second electrode, and the third electrode are insulated from each other. The first electrode and the second electrode are crosswise arranged to form a touch film layer, and the second electrode and the third electrode are crosswise arranged to form a fingerprint identification film layer.

Abstract: The disclosure is provided with a touch panel and driving control method thereof, and a touch display device. The touch panel includes: a first electrode, a second electrode, and a third electrode. The first electrode, the second electrode, and the third electrode are insulated from each other. The first electrode and the second electrode are crosswise arranged to form a touch film layer, and the second electrode and the third electrode are crosswise arranged to form a fingerprint identification film layer.

Abstract: Methods are provided for in vitro maturation (IVM) of bovine oocytes that include steps of (a) pre-culturing bovine germinal vesicle (GV) oocytes in the presence of C-type natriuretic peptide (CNP) and (b) subsequently culturing the oocytes of (a) for an extended duration in medium containing follicle stimulating hormone (FSH), luteinizing hormone (LH), 17?-estradiol (E2), epidermal growth factor (EGF), and fetal bovine serum (FBS).

Abstract: The present invention provides a method for inducing twin calving. The method according to the present invention comprises firstly treatment to inducing atresia of the antral follicles on ovary so as to initiate the development of new follicular wave, inducing the development of codominant follicles and further achieving double ovulations by exactly controlling the dosage and time points of hormone injections, and performing artificial insemination to induce the cow to deliver twin calves. The method according to the present invention has relative independent on the technical skills, and a person skilled in the art or a common worker can practice it according to specified operation methods; and during practical application, it does not require special equipment, thus saving cost, as well as improving the social benefit and economic benefit of cow breeding.

Abstract: The invention provides novel methods for IVM of bovine oocytes. These methods can be used in efficient propagation of superior animals at low cost, which is very helpful in improving ecological and economic performance in the cattle industry.

Abstract: The present invention provides a method for inducing twin calving. The method according to the present invention comprises firstly treatment to inducing atresia of the antral follicles on ovary so as to initiate the development of new follicular wave, inducing the development of codominant follicles and further achieving double ovulations by exactly controlling the dosage and time points of hormone injections, and performing artificial insemination to induce the cow to deliver twin calves. The method according to the present invention has relative independent on the technical skills, and a person skilled in the art or a common worker can practice it according to specified operation methods; and during practical application, it does not require special equipment, thus saving cost, as well as improving the social benefit and economic benefit of cow breeding.